FORM 10-K

SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

(Mark one)

[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 1993
[_] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934

COMMISSION FILE NUMBER 1-1839

COMMONWEALTH EDISON COMPANY
(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

    ILLINOIS                                                       36-0938600
(STATE OR OTHER                                                  (IRS EMPLOYER
JURISDICTION OF                                                  IDENTIFICATION
INCORPORATION OR                                                      NO.)
ORGANIZATION)

37TH FLOOR, 10 SOUTH DEARBORN STREET,
POST OFFICE BOX 767, CHICAGO, ILLINOIS                             60690-0767
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                           (ZIP CODE)

REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: 312/394-4321

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

                                                                   NAME OF
     TITLE OF                                                        EACH
    EACH CLASS                                                     EXCHANGE
- ----------------------                                             ON WHICH
                                                                  REGISTERED
                                                             ------------------
FIRST MORTGAGE BONDS:
 7 5/8% SERIES 25, DUE      8 1/8% SERIES 36, DUE
 JUNE 1, 2003               JUNE 1, 2007
 8% SERIES 26, DUE          8 1/4% SERIES 37, DUE
 OCTOBER 15, 2003           DECEMBER 1, 2007                 NEW YORK
 8 1/8% SERIES 35, DUE
 JANUARY 15, 2007

SINKING FUND
DEBENTURES:

 3%, DUE APRIL 1, 1999      7 5/8% SERIES 1, DUE             NEW YORK
 2 7/8%, DUE APRIL 1,       FEBRUARY 15, 2003
 2001
 2 3/4%, DUE APRIL 1,                                        NEW YORK AND
 1999                                                        CHICAGO

COMMON STOCK, $12.50 PAR VALUE                               NEW YORK, CHICAGO
                                                             AND PACIFIC

COMMON STOCK PURCHASE WARRANTS--1971 WARRANTS
 AND SERIES B WARRANTS                                       NEW YORK, CHICAGO
                                                             AND PACIFIC

CUMULATIVE PREFERENCE STOCK, WITHOUT PAR VALUE:
 $1.90; $2.00; $7.24; $8.40; $8.38; AND $8.40 SERIES B       NEW YORK, CHICAGO
                                                             AND PACIFIC

$1.425 CONVERTIBLE PREFERRED STOCK, WITHOUT PAR VALUE        NEW YORK, CHICAGO
                                                             AND PACIFIC

INDICATE BY CHECK MARK WHETHER THE REGISTRANT (1) HAS FILED ALL REPORTS RE- QUIRED TO BE FILED BY SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DURING THE PRECEDING 12 MONTHS, AND (2) HAS BEEN SUBJECT TO SUCH FILING REQUIREMENTS FOR THE PAST 90 DAYS.

Yes [X]. No [_].

INDICATE BY CHECK MARK IF DISCLOSURE OF DELINQUENT FILERS PURSUANT TO ITEM 405 OF REGULATION S-K IS NOT CONTAINED HEREIN, AND WILL NOT BE CONTAINED, TO THE BEST OF REGISTRANT'S KNOWLEDGE, IN DEFINITIVE PROXY OR INFORMATION STATEMENTS INCORPORATED BY REFERENCE IN PART III OF THIS FORM 10-K OR ANY AMENDMENT TO THIS FORM 10-K. [ ]

THE ESTIMATED AGGREGATE MARKET VALUE OF THE COMPANY'S OUTSTANDING COMMON STOCK, $1.425 CONVERTIBLE PREFERRED STOCK AND CUMULATIVE PREFERENCE STOCK WAS APPROXIMATELY $6,500,000,000 AS OF FEBRUARY 28, 1994. IN EXCESS OF 99.97% OF THE COMPANY'S VOTING STOCK WAS OWNED BY NON-AFFILIATES AS OF THAT DATE.

COMMON STOCK OUTSTANDING AT FEBRUARY 28, 1994: 213,794,548 SHARES

DOCUMENTS INCORPORATED BY REFERENCE:
PORTIONS OF THE COMPANY'S CURRENT REPORT ON FORM 8-K/A-1 DATED JANUARY 28, 1994 ARE INCORPORATED BY REFERENCE INTO PARTS I, II AND IV HEREOF AND PORTIONS OF THE COMPANY'S DEFINITIVE PROXY STATEMENT RELATING TO ITS ANNUAL MEETING OF SHAREHOLDERS TO BE HELD MAY 10, 1994 ARE INCORPORATED BY REFERENCE INTO PARTS I AND III HEREOF.




COMMONWEALTH EDISON COMPANY
FORM 10-K
FOR THE FISCAL YEAR ENDED DECEMBER 31, 1993
TABLE OF CONTENTS

                                                                             PAGE
                                                                             ----
Part I
  Item 1. Business..........................................................    1
    The Company.............................................................    1
    Net Electric Generating Capability......................................    2
    Construction Program....................................................    2
    Electric Rates..........................................................    4
    Rate Proceedings........................................................    4
    Fuel Supply.............................................................    6
    Regulation..............................................................    7
    Employees...............................................................   14
    Interconnections........................................................   14
    Franchises..............................................................   14
    Business and Competition................................................   15
    Executive Officers of the Registrant....................................   16
    Operating Statistics....................................................   17
  Item 2. Properties........................................................   18
  Item 3. Legal Proceedings.................................................   19
  Item 4. Submission of Matters to a Vote of Security Holders...............   19
Part II
  Item 5. Market for Registrant's Common Equity and Related Stockholder
          Matters...........................................................   20
  Item 6. Selected Financial Data...........................................   21
  Item 7. Management's Discussion and Analysis of Financial Condition and
          Results of Operations.............................................   21
  Item 8. Financial Statements and Supplementary Data.......................   21
  Item 9. Changes in and Disagreements with Accountants on Accounting and
          Financial Disclosure..............................................   21
Part III
  Item 10. Directors and Executive Officers of the Registrant...............   22
  Item 11. Executive Compensation...........................................   22
  Item 12. Security Ownership of Certain Beneficial Owners and Management...   22
  Item 13. Certain Relationships and Related Transactions...................   22
Part IV
  Item 14. Exhibits, Financial Statement Schedules and Reports on Form 8-K..   23
  Report of Independent Public Accountants on Supplemental Schedules........   28
  Schedule V--Property, Plant and Equipment.................................   29
  Schedule VI--Accumulated Depreciation, Depletion and Amortization of Prop-
                erty, Plant and Equipment...................................   31
  Schedule VII--Guarantees of Securities of Other Issuers...................   33
  Schedule VIII--Valuation and Qualifying Accounts..........................   34
  Schedule IX--Short-Term Borrowings........................................   35
  Signatures................................................................   36

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PART I

ITEM 1. BUSINESS.

THE COMPANY

Commonwealth Edison Company (Company) is engaged principally in the production, purchase, transmission, distribution and sale of electricity to a diverse base of residential, commercial and industrial customers. The Company was organized in the state of Illinois on October 17, 1913 as a result of the merger of Cosmopolitan Electric Company into the original corporation named Commonwealth Edison Company. The latter had been incorporated on September 17, 1907. The Company's electric service territory has an area of approximately 11,540 square miles and an estimated population of approximately 8.1 million as of December 31, 1991, approximately 8.2 million as of December 31, 1992 and approximately 8.1 million as of December 31, 1993. It includes the city of Chicago, an area of about 225 square miles with an estimated population of three million from which the Company derived approximately one-third of its ultimate consumer revenues in 1993. The Company had approximately 3.3 million electric customers at December 31, 1993. The Company's principal executive offices are located at 10 South Dearborn Street, Post Office Box 767, Chicago, Illinois 60690-0767, and its telephone number is 312/394-4321.

The Company's financial condition is dependent upon its ability to generate revenues to cover its costs. To maintain a satisfactory financial condition, the Company must recover the costs of and a return on completed construction projects, including its three most recently completed generating units, and maintain adequate debt and preferred and preference stock coverages and common stock equity earnings. The Company has no significant revenues other than from the sale of electricity. Under the economic and political conditions prevailing in Illinois, the Company's management recognizes that competitive and regulatory circumstances may limit the Company's ability to raise its rates. Therefore, the Company's financial condition will depend in large measure on the Company's levels of sales, expenses and capital expenditures. See "Rate Proceedings" and "Business and Competition" below.

In response to the adverse regulatory and judicial decisions in the proceedings relating to the level of the Company's rates, the Company implemented a cost reduction plan in 1992 involving various management workforce reductions through early retirement and voluntary and involuntary separations. Such reductions, when combined with other actions, are estimated by the Company to have saved approximately $130 million in operation and maintenance expenses during 1993. The management workforce reduction resulted in a charge to income of approximately $23 million (net of income tax effects) in 1992. In addition, the Company reached agreement in August 1993 with its unions regarding certain cost reduction actions. The agreement provides for a wage freeze until April 1, 1994, changes to reduce health care plan cost, increased use of part-time employment and changes in holiday provisions. The agreement also includes a continuation of negotiations relative to other issues. Further, the Company has reduced planned construction program expenditures by approximately $200 million compared with the common years (1994-95) of the previously approved three-year construction program.

The Company and union representatives reached agreement in February 1994 and announced an offer of a voluntary early retirement program. This program is available to management, non-union and union employees. Participants currently eligible will be given a 45-day period during which to consider and elect to participate in this voluntary program.

In addition, the quarterly common stock dividends, payable on and since November 1, 1992, were reduced by 47% from the seventy-five cents per share amount paid quarterly since 1982 to forty cents per share. Dividends have been declared on the outstanding shares of the Company's preferred and preference stocks at their regular quarterly rates. The Company's Board of Directors will continue to review quarterly the payment of dividends.

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See "Fuel Supply," "Regulation" and "Item 3. Legal Proceedings" herein for information concerning administrative and legal proceedings and certain other matters involving the Company, Commonwealth Edison Company of Indiana, Inc. (Indiana Company) and Cotter Corporation, a wholly-owned subsidiary of the Company. The outcome of certain of the proceedings or matters described or referred to therein, if not favorable to the Company and the Indiana Company (companies), could have a material adverse effect on the future business and operating results of the companies.

NET ELECTRIC GENERATING CAPABILITY

The owned (non-summer) generating capability of the companies is considered by the companies to be 22,522,000 kilowatts. After deducting summer limitations of 557,000 kilowatts, the net summer generating capability of the companies is considered by the companies to be 21,965,000 kilowatts. The net generating capability available for operation at any time may be less due to regulatory restrictions, fuel restrictions, efficiency of cooling facilities and to generating units being temporarily out of service for inspection, maintenance, refueling, repairs or modifications required by regulatory authorities. See "Item 2. Properties."

The highest peak load experienced to date occurred on August 27, 1993 and was 17,771,000 kilowatts; and the highest peak load experienced to date during a winter season occurred on January 18, 1994 and was 14,179,000 kilowatts. The Company's kilowatthour sales and generation are generally higher (primarily during the summer periods but also during the winter periods) when temperature extremes create demand for either summer cooling or winter heating.

CONSTRUCTION PROGRAM

The construction program for the three-year period 1994-96 consists principally of improvements to the companies' existing nuclear and other electric production, transmission and distribution facilities. It does not include funds (other than for planning) to add new generating capacity to the Company's system. The program, as approved by the Company in January 1994, calls for electric plant and equipment expenditures of approximately $2,450 million (excluding nuclear fuel expenditures of approximately $780 million). This amount reflects a decrease of approximately $200 million compared with the common years (1994-95) of the previously approved construction program. In part, the decrease reflects a reduction in capital spending announced by the Company in July 1992 due to adverse financial circumstances. For additional information concerning the cost reduction plan, see "The Company" above. It is estimated that such construction expenditures, with cost escalation computed at 4% annually, will be as follows:

                                                           THREE-YEAR
                                            1994 1995 1996   TOTAL
                                            ---- ---- ---- ----------
                                             --MILLIONS OF DOLLARS--
Production................................. $295 $310 $250   $  855
Transmission and Distribution..............  340  445  505    1,290
General....................................  115   95   95      305
                                            ---- ---- ----   ------
    Total.................................. $750 $850 $850   $2,450
                                            ---- ---- ----   ------
                                            ---- ---- ----   ------

Construction expenditures during 1993 were approximately $842 million.

The Company's gross investment in nuclear generating capacity (excluding nuclear fuel) is approximately $13.8 billion at December 31, 1993, and the Company expects that investment to be approximately $14.2 billion by the end of 1996 as a result of improvements.

The Company's forecasts of peak load indicate a need for additional resources to meet demand, either through generating capacity or through equivalent purchased power or demand-side management resources, in 1997 and each year thereafter through the year 2000. The projected

2

resource needs reflect the current planning reserve margin recommendations of the Mid-America Interconnected Network (MAIN), the reliability council of which the Company is a member. The Company's forecasts indicate that the need for additional resources during this period would exist only during the summer months. The Company does not expect to make expenditures for additional capacity to the extent the need for capacity can be met through cost-effective demand-side management resources, non-utility generation or other power purchases. To assess the market potential to provide such cost-effective resources, the Company solicited proposals to supply it with cost-effective demand-side management resources, non-utility generation resources and other- utility power purchases sufficient to meet forecasted requirements through the year 2000. The responses to the solicitation suggest that adequate resources to meet the Company's needs could be obtained from those sources but the Company has not yet determined whether those sources represent the most economical alternative. If the Company were to build additional capacity to meet its needs, it would need to make additional expenditures during the 1994- 96 period.

The Company has not budgeted for a number of projects, particularly at generating stations, which could be required, but which the Company does not expect to be required during the budget period. In particular, the Company has not budgeted for the construction of scrubbers at its Kincaid generating station, for the replacement of major amounts of piping at its boiling water reactor nuclear stations or for the replacement of steam generators at its pressurized water reactor nuclear stations. See "Regulation," subcaption "Nuclear" below.

The 1994-96 construction program includes approximately $91 million for environmental control facilities, of which approximately $39 million, $37 million and $15 million is budgeted for 1994, 1995 and 1996, respectively. Expenditures on such facilities were $28 million, $22 million and $28 million during 1991, 1992 and 1993, respectively.

Purchase commitments, principally related to construction and nuclear fuel, approximated $1,187 million at December 31, 1993. In addition, the Company has substantial commitments for the purchase of coal under long-term contracts as indicated in the following table.

CONTRACT                               PERIOD                      COMMITMENT(1)
- --------------------                  ---------                    -------------
Black Butte Coal Co.                  1994-2007                       $1,212
Decker Coal Co.                       1994-2015                       $  862
Peabody Coal Co.                      1994                            $   34
Big Horn Coal Co.                     1998                            $   21


(1) Estimated costs in millions of dollars FOB mine. No estimate of future cost escalation has been made.

For additional information concerning these coal contracts and the Company's fuel supply, see "Fuel Supply" below and Notes 3, 17 and 19 of Notes to Financial Statements in the Company's Current Report on Form 8-K/A-1 dated January 28, 1994 (the "January 28, 1994 Form 8-K/A-1 Report").

The construction program will be reviewed and modified as necessary to adapt to changing economic conditions, rate levels and other relevant factors including changing business and legal needs and requirements. The Company cannot anticipate all such possible needs and requirements. While regulatory requirements in particular are more likely, on balance, to necessitate increases in construction expenditures than decreases, the Company's financial condition may require compensating or greater reductions in other construction expenditures. See "Rate Proceedings," "Regulation" and "Item 3. Legal Proceedings" herein.

The Company has forecast that internal sources will provide approximately one-half of the funds required for its construction program and other capital requirements, including nuclear fuel expenditures, contributions to nuclear decommissioning trusts, sinking fund obligations and refinancing of scheduled debt maturities (the annual sinking fund requirements for preference stock and long-term debt are summarized in Notes 7 and 8 of Notes to Financial Statements in the January 28, 1994 Form 8-K/A-1 Report). The forecast assumes the rate levels reflected in the Rate Matters Settlement (described below), and reflects the payments required to be made to customers under the Rate Matters Settlement and the Fuel Matters Settlement (described below). See "Rate Proceedings" herein for additional information.

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The Company periodically reviews its projection of probable future demand for electricity in its service territory. It currently projects long-term average annual growth of 2% in annual peak load and 1.75% in annual output.

Gross additions to and retirements from utility property, excluding nuclear fuel, of the companies for the five years ended December 31, 1993 were $4,640 million and $511 million, respectively.

See Note 1 of Notes to Financial Statements and "Results of Operations" subcaption "Other Items" in "Management's Discussion and Analysis of Financial Condition and Results of Operations" in the January 28, 1994 Form 8-K/A-1 Report for information concerning Allowance for Funds Used During Construction.

ELECTRIC RATES

The following table summarizes rate increases granted in the Company's major rate proceedings before the Illinois Commerce Commission (ICC) since January 1, 1985. Revenues actually realized as a result of the rate increases may vary depending on levels of kilowatthour sales to each class of customers. See Notes 2 and 3 of Notes to Financial Statements in the January 28, 1994 Form 8-K/A-1 Report.

   ANNUAL
   AMOUNT
 REQUESTED                               AUTHORIZED
    (IN       ----------------------------------------------------------------
 MILLIONS)                                     PERCENT           END OF
    AND                           ANNUAL      INCREASE        TWELVE-MONTH
  DATE OF                       AMOUNT (IN  OVER PREVIOUS TEST PERIOD CITED IN
   FILING      EFFECTIVE DATE  MILLIONS)(a)  REVENUES(a)    FINAL RATE ORDER
- ------------  ---------------- ------------ ------------- --------------------
$583
November 29,
1984          October 29, 1985   $495(b)       11.0          December 1984
$1,415
August 21,
1987          January 1, 1989    $235(c)        4.5(c)       December 1987
$1,231
April 12,
1990          March 20, 1991     $750(d)       14.0(d)       December 1991


(a) The amounts granted and the related percent increases are based on the test periods cited in the rate orders and exclude add-on revenue taxes.
(b) Includes approximately $81 million of revenue included in rates effective January 1, 1987 pursuant to a phase-in plan. The phase-in plan reflects the recovery of the $81 million postponed portion of the increase and an additional recovery ($56 million) of a full return on the postponed portion over a two-year period.
(c) Represents the first step of a rate increase relating to Byron Unit 2 and Braidwood Units 1 and 2 (Units) authorized by a December 1988 rate order which was reversed by the Illinois Supreme Court on December 21, 1989 and excludes a $56 million decrease resulting from completion of the recovery period referred to in note (b). This rate increase was rolled back, effective July 1, 1990.
(d) Represents the aggregate amount of the rate increase, which was to be phased-in over a three-year period. As a result of subsequent proceedings and the Rate Matters Settlement described below, only an increase of approximately $144 million in annual electric operating revenues remains effective. See "Rate Proceedings," subcaption "Settlements Relating to Certain Rate Matters" below and Note 2 of Notes to Financial Statements in the January 28, 1994 Form 8-K/A-1 Report.

RATE PROCEEDINGS

The Company's revenues, net income, cash flows and plant carrying costs have been affected directly by various rate-related proceedings. During the periods presented in the financial statements, the Company was involved in proceedings concerning its October 1985 ICC rate order (which related principally to the recovery of costs associated with its Byron Unit 1 nuclear generating unit),

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proceedings concerning its March 1991 ICC rate order (which related principally to the recovery of costs associated with the Units), proceedings concerning the reduction in the difference between the Company's summer and non-summer residential rates that was effected in the summer of 1988, and ICC fuel reconciliation proceedings principally concerning the recoverability of the costs of the Company's western coal. In addition, there were outstanding issues related to the appropriate interest rate and rate design to be applied to a refund that was made in 1990 following the reversal of a December 1988 ICC rate order and a rider to the Company's rates that the Company was required to file as a result of the change in the federal corporate income tax rate made by the Tax Reform Act of 1986. The uncertainties associated with such proceedings and issues, among other things, led to the Rate Matters Settlement and the Fuel Matters Settlement (which are discussed below).

The effects of the aforementioned rate proceedings during the periods presented are discussed in "Management's Discussion and Analysis of Financial Condition and Results of Operations," subcaption "Results of Operations" in the January 28, 1994 Form 8-K/A-1 Report. For additional information regarding such proceedings, see Notes 2 and 3 of Notes to Financial Statements in the Company's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 1993.

Settlements Relating to Certain Rate Matters

On September 24, 1993, the Company's Board of Directors approved two proposed settlements which the Company's management had reached with parties involved in several of the proceedings and matters relating to the level of the Company's rates for electric service. One of the proposed settlements (Rate Matters Settlement) concerned the proceedings relating to the Company's 1985 and 1991 ICC rate orders, the proceedings relating to the reduction in the difference between the Company's summer and non-summer residential rates, the outstanding interest rate and rate design issues, and a rider related to the change in the federal corporate income tax rate made by the Tax Reform Act of 1986. The other proposed settlement (Fuel Matters Settlement) related to the ICC fuel reconciliation proceedings involving the Company for the period from 1985 through 1988 and to future challenges by the settling parties to the prudency of the Company's western coal costs for the period from 1989 through 1992. Each of these settlements was subject to appropriate action by the ICC or the courts having jurisdiction over the proceedings.

As a result of subsequent ICC and judicial actions, the Rate Matters Settlement became final on November 4, 1993. Under the Rate Matters Settlement, effective as of November 4, 1993, the Company reduced its rates by approximately $339 million annually and commenced refunding approximately $1.26 billion (including revenue taxes), plus interest at five percent on the unpaid balance, through temporarily reduced rates over an initial refund period scheduled to be twelve months (to be followed by a reconciliation period of no more than five months). The Company had previously deferred the recognition of revenues during 1993 as a result of developments in the proceedings related to the March 1991 ICC rate order, which resulted in a reduction to 1993 net income of approximately $160 million. The recording of the effects of the Rate Matters Settlement in October 1993 reduced the Company's 1993 net income and retained earnings by approximately $292 million or $1.37 per common share, in addition to the effect of the deferred recognition of revenues and after the partially offsetting effect of recording approximately $269 million (or $1.26 per common share) in deferred carrying charges, net of income taxes, authorized in the ICC rate order issued on January 6, 1993 (as subsequently modified, the Remand Order). In January 1994, a purported class action was filed in the Circuit Court of Cook County, Illinois challenging the making of refunds to current rather than to historical residential customers in the Rate Matters Settlement. The Company does not believe that the complaint has any merit.

As a result of subsequent ICC actions, the Fuel Matters Settlement became final on November 15, 1993. Under the Fuel Matters Settlement, effective as of December 2, 1993, the Company commenced paying approximately $108 million (including revenue taxes) to its customers through

5

temporarily reduced collections under its fuel adjustment clause over a twelve- month period. The Company recorded the effects of the Fuel Matters Settlement in October 1993, which effects reduced the Company's net income and retained earnings by approximately $62 million or $0.29 per common share.

Other Rate Matters

On February 10, 1994, the Company filed a request with the ICC to increase electric operating revenues by approximately $460 million, or 7.9%, on an annual basis above the level of revenues approved in the Rate Matters Settlement. This request principally reflects the inclusion of the Units in the Company's rate base as fully "used and useful," increased operation and maintenance expenses over the level reflected in the Remand Order, increased contributions to the external trust funds which the Company is required to fund to cover the eventual decommissioning of its nuclear power plants and lower debt and equity costs. The ICC has suspended the rates, appointed hearing examiners and ordered an investigation. Under the Illinois Public Utilities Act, the ICC must decide the case by early January 1995.

In the Remand Order, the rate determination was based upon, among other things, findings by the ICC with respect to the extent to which the Units were "used and useful" during the 1991 test year period of the rate order. With respect to the "used and useful" issue, the ICC applied a needs and economic benefits methodology, using a twenty percent reserve margin and forecasted peak demand, and found Byron Unit 2 and Braidwood Units 1 and 2 to be 93%, 21% and 0%, respectively, "used and useful." The Company has not recorded any disallowances related to the "used and useful" issue. The Company considers the "used and useful" disallowance in the Remand Order to be temporary. The ICC concluded in the Remand Order that the forecasts in the record in that proceeding indicate that Braidwood Units 1 and 2 will be fully "used and useful" within the reasonably foreseeable future.

FUEL SUPPLY

The kilowatthour generation of the companies for 1993 was provided from the following fuel sources: nuclear 75%, coal 23%, oil 1% and gas 1%.

Nuclear Fuel

The Company has uranium concentrate inventory, supply contracts and subsidiary resources sufficient to meet the majority of its uranium concentrate requirements through 1994 and portions of its requirements for periods beyond 1994. The Company's contracted conversion services are sufficient to meet all of its uranium conversion requirements through 1995. All of the Company's enrichment requirements have been contracted for through 1999. Commitments for fuel fabrication have been obtained for the Company's nuclear units at least through 1999. The Company does not anticipate that it will have any difficulty in negotiating contracts for uranium concentrates, conversion, enrichment and fuel fabrication services for periods after the dates indicated.

The Company has contracted with the United States Department of Energy (DOE) for the final disposal of spent nuclear fuel and high-level radioactive waste beginning not later than January 1998; however, this delivery schedule is expected to be delayed significantly. The Company has the primary responsibility for providing interim storage for its spent nuclear fuel. The Company's capability to store spent fuel is more than adequate for some years to come. All stations except Dresden and Zion stations will have spent fuel capacity at least through the year 2005. Dresden station has capacity through 2001. Zion station has capacity through 2003. Meeting spent fuel storage requirements beyond the years described above could require new and separate storage facilities, the costs for which have not been determined. See "Regulation," subcaption "Nuclear" herein for further information concerning the disposal of radioactive waste.

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Coal

The Company burns low sulfur western coal at all but one of its coal-fired stations. The other coal-fired station burns Illinois coal. This Illinois coal is provided under a contract which expires in 1994. The Company's present policy is to maintain a coal inventory equal to 30 days of high utilization. As of February 28, 1994, coal inventories approximated 30 days. The average cost per ton of coal consumed by the companies for the years 1991, 1992 and 1993, including transportation charges, was $50.31, $52.57 and $49.42, respectively.

Compared to other utilities, the Company has relatively low average fuel costs. This results from the Company's reliance predominantly on lower cost nuclear generation. The Company's coal costs, however, are high compared to those of other utilities. The Company's western coal contracts and its rail contracts for delivery of the western coal were renegotiated during 1992 effective as of January 1, 1993, to provide, among other things, for significant reductions in the delivered price of the coal over the duration of the contracts. However, the renegotiated contracts provide for the purchase of certain coal at prices substantially above currently prevailing market prices and the Company has significant purchase commitments under its contracts. For additional information concerning the Company's coal purchase commitments, fuel reconciliation proceedings and coal reserves, see "Construction Program" above and "Fuel Adjustment Clause" below and Notes 2, 17 and 19 of Notes to Financial Statements in the January 28, 1994 Form 8-K/A-1 Report.

Oil and Gas

The Company's fast-start peaking units use middle distillate oils. Approximately half of this capacity can also be fueled with natural gas. The Company's 2,698,000 kilowatt Collins station is fueled with natural gas and residual oil. The Company purchases oil under various purchase orders. The recent cost for oil at Collins station, including transportation charges, has been $16 per barrel. The conversion of three of the five units at Collins station to dual fuel capability (residual oil and natural gas) was substantially completed during 1993. The Company expects the conversion of all three units to be completed in the near future. The Company has a contract for the delivery and storage of natural gas from gas pipelines to Collins station which expires in 2003.

Fuel Adjustment Clause

Through its fuel adjustment clause, the Company recovers from its customers the cost of the fuel used to generate electricity and of purchased power as compared to fuel costs included in base rates. The amounts collected under the fuel adjustment clause are subject to review by the ICC, which, under the Illinois Public Utilities Act, is required to hold annual public hearings to reconcile the collected amounts with the actual cost of fuel and power prudently purchased. In the event that the collected amounts exceed such actual cost, then the ICC can order that the excess be refunded.

For additional information concerning the Company's fuel reconciliation proceedings and coal reserves, see Notes 2, 17 and 19 of Notes to Financial Statements in the January 28, 1994 Form 8-K/A-1 Report and Note 3 of Notes to Financial Statements in the Company's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 1993.

REGULATION

The companies are subject to state and federal regulation in the conduct of their respective businesses, including the operations of Cotter Corporation. Such regulation includes rates, securities issuance, nuclear operations, environmental and other matters. The Company is subject to regulation

7

by the ICC as to rates and charges, issuance of securities (other than debt securities maturing in not more than twelve months), service and facilities, classification of accounts, transactions with affiliated interests as defined in the Illinois Public Utilities Act and other matters. In addition, the ICC in certain of its rate orders has exercised jurisdiction over the Company's environmental control program.

The Company is subject to the jurisdiction of the Federal Energy Regulatory Commission (FERC) with respect to the issuance of debt securities maturing in not more than twelve months. The Company is also subject to the jurisdiction of the FERC and the DOE under the Federal Power Act with respect to certain other matters, including the sale for resale of electric energy and the transmission of electric energy in interstate commerce, and to the jurisdiction of the DOE with respect to the disposal of spent nuclear fuel and other radioactive wastes.

On July 13, 1993, legislation became effective in Illinois which permits the Company to create certain unregulated subsidiaries, and to form a holding company, without being required to obtain the approval of the ICC. The Company has created an unregulated subsidiary to engage in energy service activities and is in the process of obtaining necessary shareholder and Federal regulatory approvals to create a holding company structure for its operations.

The Company is a holding company as defined by the Public Utility Holding Company Act of 1935 because of its ownership of common stock of the Indiana Company. By filing an exemption statement annually, the Company is exempt from most of the provisions of such Act.

The Indiana Company, an "affiliated interest" of the Company within the meaning of the Illinois Public Utilities Act, is subject to regulation by the Indiana Utility Regulatory Commission and to the jurisdiction of the FERC, the DOE and federal and state of Indiana pollution control and other agencies.

Currently, the ICC is conducting a focused management audit of the Company's fuel procurement process, which began in December 1993 and is scheduled to be completed in midyear 1994.

Nuclear

The Illinois Department of Nuclear Safety (IDNS) has jurisdiction over certain activities in Illinois relating to nuclear power and safety, and radioactive materials. Effective June 1, 1987, the IDNS replaced the Nuclear Regulatory Commission (NRC) as the regulator and licensor of certain source, by-product and special nuclear material in quantities not sufficient to form a critical mass, including such material contained in various measuring devices used at fossil-fuel power plants. The IDNS has promulgated regulations which are substantially similar to the corresponding federal regulations. The IDNS also has authority to license a low-level radioactive waste disposal facility and to regulate alternative methods for disposing of materials which contain only trace amounts of radioactivity.

The Company is subject to the jurisdiction of the NRC with respect to its nuclear generating stations. The NRC regulations control the granting of permits and licenses for the construction and operation of nuclear generating stations and subject such stations to continuing review and regulation. The NRC review and regulatory process covers, among other things, operations, maintenance, and environmental and radiological aspects of such stations. The NRC may modify, suspend or revoke licenses and impose civil penalties for failure to comply with the Atomic Energy Act, the regulations under such Act or the terms of such licenses. Attempts are made from time to time by various individuals or citizen groups to prohibit the development or use of nuclear power

8

through initiation of proceedings before the NRC, other agencies or courts. Such proceedings frequently involve attacks on the validity of NRC rules which, if successful, could provide a basis for challenges to permits and licenses granted by the NRC in the past.

Under the Nuclear Waste Policy Act of 1982, the DOE is responsible for the selection and development of repositories for, and the disposal of, spent nuclear fuel and high-level radioactive waste. The Company, as required by that Act, has signed a contract with the DOE to provide for the disposal of spent nuclear fuel and high-level radioactive waste from the Company's nuclear generating stations beginning not later than January 1998. The contract with the DOE requires the Company to pay the DOE a one-time fee applicable to nuclear generation through April 6, 1983 of approximately $277 million, with interest to date of payment, and a fee payable quarterly equal to one mill per kilowatthour of nuclear-generated and sold electricity after April 6, 1983. The Company has elected to pay the one-time fee, with interest, just prior to the first scheduled delivery of spent nuclear fuel to the DOE, which is scheduled to occur not later than January 1998; however, this delivery schedule is expected to be delayed significantly. The costs incurred by the DOE for disposal activities will be paid out of fees charged to owners and generators of spent nuclear fuel and high-level radioactive waste. The Company has primary responsibility for the interim storage of its spent nuclear fuel. The Company anticipates the possibility of serious difficulties in disposing of high-level radioactive waste. See "Fuel Supply," subcaption "Nuclear Fuel" herein for further information.

The Company currently disposes of its low-level radioactive waste at a site in the state of South Carolina. There are no other commercial operating sites in the United States for the disposal of low-level radioactive waste available to the Company. The federal Low-Level Radioactive Waste Policy Act of 1980 provides that states may enter into compacts to provide for regional disposal facilities for such waste, subject to approval by the United States Congress (Congress) of each such compact. Under the 1985 amendments to that Act, a compact could restrict the use of a region's disposal facilities after January 1, 1993 to waste generated within the region. South Carolina belongs to a regional compact. South Carolina has granted the Company access to its waste disposal site for an 18-month period which began January 1, 1993. Illinois has entered into a compact with the state of Kentucky, which has been approved by Congress. The IDNS had estimated that a low-level radioactive waste disposal facility would be operational in Illinois by March 31, 1994 at the earliest. However, in 1992, an independent panel rejected the only site in Illinois then being considered for a low-level waste disposal facility. Illinois has since enacted legislation changing the procedures for siting a low-level waste disposal facility. The Company has temporary on-site storage capacity at its nuclear generating stations for a limited amount of low-level radioactive waste and is planning additional such capacity pending development of disposal facilities by the state of Illinois. The Company anticipates the possibility of serious difficulties in disposing of low-level radioactive waste. The continuing viability of commercial nuclear power is subject to resolution of the issues of spent nuclear fuel storage and disposal of radioactive waste.

Federal regulations provide that any operating nuclear generating facility may be required to cease operation if the NRC determines that there are deficiencies in state, local or utility emergency preparedness plans relating to such facility and the deficiencies are not corrected within four months of such determination. Under the regulations, the NRC may permit the operation of facilities, even though the emergency preparedness plans are deficient, upon an examination of other factors, including whether the deficiencies are significant for the facility in question, whether adequate interim compensatory actions have been or will be taken promptly and whether other compelling reasons exist for operation consistent with public health and safety. The Company's emergency preparedness plans for all of its nuclear generating stations have been approved by the NRC. State and local plans relating to the Company's nuclear generating stations have been approved by the Federal Emergency Management Agency. The Company continues to cooperate with the NRC and appropriate local and state agencies in Illinois, Indiana, Iowa and Wisconsin on emergency preparedness issues.

9

In February 1993, the Company was notified by the NRC that the Company's Zion station, which was placed on the NRC's list of plants to be monitored closely in early 1991, was removed from that list. In January 1994, the Company was notified by the NRC that the Company's Dresden station, which was placed on the NRC's list of plants to be monitored closely in early 1992, would remain on that list. Also in January 1994, the NRC noted adverse performance trends at Quad-Cities station as well as at LaSalle County station. The Company had already identified and was working to correct most of the problems cited. As a consequence, the Company anticipates continued increased expenditures in connection with those stations.

In accordance with a commitment to the NRC, the Company examined its operating boiling water nuclear generating units in 1983 to determine the existence or extent of inter-granular stress corrosion in certain of the large diameter piping in those units. Inter-granular stress corrosion was discovered in the Dresden and Quad-Cities units. The Company replaced the stainless steel piping susceptible to stress corrosion at Dresden Unit 3 and is taking alternative remedial actions which are intended to minimize the need to replace such piping at Dresden Unit 2, Quad-Cities Units 1 and 2 and LaSalle Units 1 and 2. If the Company is required to replace all of such piping, the estimated construction expenditures, in current-year dollars, would be approximately $520 million.

The Company has studied the possibility of having to replace the steam generators at its Zion nuclear generating plant. The initial studies were completed in early June 1991 and additional follow-up studies are continuing. Based on the findings of these studies, the Company plans to replace the Zion Unit 1 steam generators, for service in 2000, at an estimated cost of approximately $225 million. The Company is also studying the replacement of the steam generators at Byron Unit 1 and Braidwood Unit 1 and expects such replacement may be needed; initial and on-going studies indicate possible replacements as early as 2000 for Byron Unit 1 and 2002 for Braidwood Unit 1; however, alternative remedial actions are also being explored. If required, the replacement cost of the steam generators at Byron Unit 1 and Braidwood Unit 1 would be comparable to Zion Unit 1. Approximately $3 million of preliminary engineering expenditures are included in the 1994-96 construction program. See "Item 3. Legal Proceedings" concerning litigation by the Company against Westinghouse Electric Corporation concerning steam generators.

During the year 1993, civil penalties were imposed on the Company by the NRC on seven occasions for violations of NRC regulations in amounts aggregating $562,500. Since January 1, 1994, there have been no violations of NRC regulations identified which have resulted in civil penalties. However, there are several potentially enforceable issues currently outstanding and under review by the NRC.

The uranium mining and milling operations of the Company's subsidiary, Cotter Corporation, are subject to regulation by the state of Colorado and the NRC.

Environmental

The companies are subject to regulation regarding environmental matters by the United States and by the states of Illinois, Indiana, Iowa and, in the case of Cotter Corporation, Colorado, and by local jurisdictions where the companies operate their facilities. The Illinois Pollution Control Board (IPCB) has jurisdiction over environmental control in the state of Illinois, which includes authority to regulate air, water and noise emissions and solid waste disposal, together with the Illinois Environmental Protection Agency (Illinois Agency), which enforces regulations of the IPCB and issues permits in connection with environmental control. The United States Environmental Protection Agency (Federal Agency) administers certain federal statutes relating to such matters. The IPCB has published a proposed rule under which it would have the power to regulate radioactive air pollutants under the Illinois Environmental Protection Act and the Federal Clean Air Act Amendments of 1977.

10

Air quality regulations, promulgated by the IPCB as well as the Indiana and Hammond Departments of Environmental Management in accordance with federal standards, impose restrictions on the emission of particulates, sulfur dioxide, nitrogen oxides and other air pollutants and require permits from the respective state and local environmental protection agencies for the operation of emission sources. Permits authorizing operation of the Company's fossil- fueled generating facilities subject to this requirement have been obtained and, where such permits are due to expire, the Company has, in a timely manner, filed applications for renewal or requested extensions of the existing permits.

Under the Federal Clean Water Act, National Pollutant Discharge Elimination System (NPDES) permits for discharges into waterways are required to be obtained from the Federal Agency or from the state environmental agency to which the permit program has been delegated. Those permits must be renewed periodically. The companies either have NPDES permits for all of their generating stations or have filed applications for renewals of such permits under the current delegation of the program to the Illinois Agency or the Indiana Department of Environmental Management. The Company is also subject to the jurisdiction of certain pollution control agencies of the state of Iowa with respect to the discharge into the Mississippi River from the Quad-Cities station. Reissued NPDES permits for several generating facilities establish schedules by which the facilities must meet tighter discharge limits when using certain biocides in condenser cooling water systems. The Company has embarked on a program to obtain compliance with the new permit requirements by the April 1995 compliance date.

On August 10, 1990, the Sierra Club filed suit in the U.S. District Court under Section 505 of the Federal Clean Water Act alleging violations of state of Illinois water quality standards with respect to thermal effluents at the Company's Fisk, Crawford, Will County, Joliet and Dresden generating stations. In July 1991, the Sierra Club and the Company reached a settlement of this suit which was approved by the Court on November 1, 1991. Under the settlement, the Company has agreed to perform an ecological study of the thermal effluents discharged from the generating stations. Ultimately, this study, which is currently underway, may determine whether the installation of closed cycle cooling facilities or operational restrictions are necessary at one or more of these stations.

The Great Lakes Critical Programs Act of 1990 requires that, following the issuance of guidance by the Federal Agency, the states of Illinois and Indiana, among others, adopt water quality standards, policies and procedures to assure protection of the water quality of the Great Lakes. Water quality standards and procedures that the states would be required to adopt under the current version of the Federal Agency's draft guidance ultimately could require that the Company install additional pollution control equipment or restrict operations at its facilities that discharge, either directly or indirectly, into Lake Michigan. The Federal Agency is expected to issue final guidance in 1995.

The Clean Air Act Amendments of 1990 (Amendments) will require reductions in sulfur dioxide emissions from the Company's Kincaid station. The Amendments also bar future utility sulfur dioxide emissions except to the extent utilities hold allowances for their emissions. Allowances which authorize their holder to emit sulfur dioxide will be issued by the Federal Agency based largely on historical levels of sulfur dioxide emissions. These allowances will be transferable and marketable. The Company's ability to increase generation in the future to meet expected increased demand for electricity will depend in part on the Company's ability to acquire additional allowances or to reduce emissions below otherwise allowable levels from its existing generating plants. In addition, the Amendments require studies to determine what controls, if any, should be imposed on utilities to control air toxic emissions, including mercury. The Company's Clean Air Compliance Plan for Kincaid station was approved by the ICC on July 8, 1993. In late 1993, however, a federal court declared the Illinois law under which the approval was received to be unconstitutional and compliance plans prepared and approved in reliance on the law to be void. Under the Plan approved by the ICC, the Company would have been allowed to burn low sulfur Illinois coal at Kincaid station without the

11

installation of pollution control equipment for the years 1995 through 1999, and to purchase any necessary emission allowances that are expected to be available under the Amendments during this period. Also, under the Plan, the Company expected to install pollution control equipment for Kincaid station by the year 2000. When the final outcome of the federal litigation is known, the Company will determine whether any changes are required.

The Amendments also will require reductions in nitrogen oxide emissions from the Company's fossil fuel generating units. The Illinois Agency has proposed rules with respect to such emissions which would require modifications to certain of the Company's boilers. The Company's construction program for the three-year period 1994-96 includes $25 million for such modifications.

The Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) provides for immediate response and removal actions coordinated by the Federal Agency to releases of hazardous substances into the environment and authorizes the federal government either to clean up sites at which hazardous substances have created actual or potential environmental hazards or to order persons responsible for the situation to do so. Under CERCLA, generators and transporters of hazardous substances, as well as past and present owners and operators of hazardous waste sites, are made strictly, jointly and severally liable for the clean-up costs of waste at sites, most of which are listed by the Federal Agency on the National Priorities List (NPL). These responsible parties can be ordered to perform a clean-up, can be sued for costs associated with a Federal Agency directed clean-up, or may voluntarily settle with the federal government concerning their liability for clean-up costs, or may voluntarily begin a site investigation and site remediation prior to listing on the NPL under state oversight. Various states, including Illinois, have enacted statutes which contain provisions substantially similar to CERCLA. The Company and its subsidiaries are or are likely to become parties to proceedings initiated by the Federal Agency, state agencies and/or other responsible parties under CERCLA with respect to a number of sites, including manufactured gas plant (MGP) sites, or may voluntarily undertake to investigate and remediate sites for which they may be liable under CERCLA. MGPs manufactured gas in Illinois from approximately 1850 to 1950. The Company generally did not operate MGPs as a corporate entity but did, however, acquire MGP sites as part of the absorption of smaller utilities. Approximately half of these sites were transferred to Northern Illinois Gas Company as part of a general conveyance in 1954. The Company also acquired former MGP sites as vacant real estate on which Company facilities have been constructed. While there is a possibility that in the aggregate the cost of MGP site investigation and remediation will be substantial over time, the Company is not able to determine the most probable liability for MGPs. In accordance with accounting standards, the Company recorded a provision of $25 million in 1991 which reflects the low end of the range of its estimate of the liability associated with former MGPs. In 1993, the Company recorded a provision of $5 million which reflects the low end of the range of its estimate of the liability associated with cleanup costs of remediation sites other than former MGP sites. The Company presently estimates that its costs of investigating and remediating these other sites pursuant to CERCLA and state environmental laws will not in the aggregate be material to the business or operations of the Company. These cost estimates are based on currently available information regarding the responsible parties likely to share in the costs of responding to site contamination, the extent of contamination at sites for which the investigation has not yet been completed and the cleanup levels to which sites are expected to have to be remediated.

On July 17, 1991, the United States Government (Government) filed a complaint in U.S. District Court alleging that the Company and four other defendants are "potentially responsible parties" (PRPs) under CERCLA for remediation costs associated with surface, soil and groundwater contamination alleged to have occurred from the disposal by other persons of hazardous wastes at a site located near the Company's Byron station in Byron, Illinois. The Government alleges that a portion of the site is owned by the Company. The Government is presently seeking reimbursement from the PRPs for study and response costs associated with the site. The Company presently expects

12

such costs to total approximately $10 million. The Company is currently pursuing cost recovery from other PRPs that have been identified at this site.

On October 16, 1992, the Federal Agency notified the Company and four other companies, including the site operator, that they were PRPs under CERCLA for the costs associated with the investigation and removal of contaminated soil at the Elgin Salvage and Supply site in Elgin, Illinois. The Company sent substantial amounts of scrap cable and other scrap metal to the site. The site investigation and remediation is currently estimated to be approximately $8 to $10 million. The operator is currently in default of his 50% portion of the interim allocation. Therefore, this share has been reapportioned among the remaining PRPs with the Company's present allocation being between $3 and $4 million. In February 1994, the Company recorded a provision of $3 million which reflects the low end of the range of its estimate of this additional liability, and also recorded a receivable of $3 million as this additional $3 million is probable of recovery from insurance companies and/or other PRPs. In addition, the Company and the other PRPs have filed a cost recovery action against the site operator and the site owner to require that they provide their share of the remediation costs.

In the operation of its electric distribution system, the Company has utilized equipment containing polychlorinated biphenyls (PCBs). Such equipment included transformers located in customer-owned buildings and in sidewalk vaults. Under regulations adopted by the Federal Agency, these transformers containing PCBs were required to be modified (with non-PCB fluid) or be replaced. The Company has completed the replacement of over 2,000 PCB fluid transformers that were located in or near commercial buildings and were subject to the federal regulations. The estimated cost to the Company of replacing or modifying these transformers and disposing of the PCB fluid was approximately $120 million, which had been expended through the end of 1993. Some of the Company's electrical equipment containing PCBs was sent to scrap and salvage facilities and, as a result, the Company may be liable for penalties and for the costs of cleanup of those facilities. An accident or spill involving PCB oil filled electrical equipment, resulting in exposure of persons or property to PCBs or their by-products, could result in material liability claims against the Company.

In September 1990, the IPCB replaced existing landfill regulations with new, more stringent design and performance standards. These regulations are expected to increase the cost to the Company for disposal of coal combustion by-products at its Joliet station. At Joliet, an existing landfill utilized for disposal of coal ash may require the installation by 1997 of engineered retrofits designed to protect groundwater. The Company intends to request exemptions from certain of the new regulations from the IPCB. If its request is denied, then alternative landfill siting, commercial disposal, or retrofitting of the existing facility could result in significant increases in disposal expenditures.

The outcome of many of the regulatory proceedings referred to above, if not favorable, could have a material adverse effect on the Company's future business and operating results.

An unresolved issue is whether exposure to electric and magnetic fields (EMFs) may result in adverse health effects or damage to the environment. EMFs are produced by virtually all devices carrying or utilizing electricity, including transmission and distribution lines as well as home appliances. If regulations are adopted related to EMFs, they could affect the construction and operation of electric equipment, including transmission and distribution lines and the cost of such equipment. The Company cannot predict the effect on the cost of such equipment or operations if new regulations related to EMFs are adopted. In the absence of such regulations, EMFs have nonetheless become an issue in siting facilities and in other land use contexts. Litigation has been filed in a variety of locations against a variety of defendants (including the Company) alleging that the presence or use of electrical equipment has had an adverse effect on the health of persons. If plaintiffs are successful in litigation of this type and it becomes widespread, the impact on the Company and on the electric utility industry is not predictable, but could be severe.

13

From time to time, the companies are, or are claimed to be, in violation of or in default under orders, statutes, rules or regulations relating to environmental controls and other matters, compliance plans imposed upon or agreed to by them or permits issued by various state and federal agencies for the construction or operation of the companies' facilities. The Company does not believe, so far as it now foresees, that such violations or defaults will have a material adverse effect on its future business and operating results, except for events otherwise described in this Annual Report on Form 10-K which could have such an effect.

EMPLOYEES

The total number of employees of the companies was approximately 19,008 at December 31, 1993. Of that amount, about 11,214 employees of the Company are represented by 17 local unions of the International Brotherhood of Electrical Workers (AFL-CIO) (IBEW), and about 182 employees of the Indiana Company are represented by the United Steelworkers of America, Local 12502. The Company has been notified that effective May 1, 1994, the 17 local unions of the IBEW will be reorganized into one local union. Collective bargaining agreements with the unions are effective through March 31, 1995 with a wage reopener to be effective April 1, 1994. In March 1994, the Company and the unions reached agreement on a general wage increase effective April 1, 1994, including an incentive pay element which provides for additional compensation based on the achievement of specified corporate financial results in 1994. The agreement is subject to ratification by the unions' membership. Increases in the rates of compensation for supervisory and administrative employees are made from time to time. An incentive compensation arrangement has been implemented under the Company's 1993 Long-Term Incentive Plan for supervisory and administrative employees for 1994, with payments based upon the achievement of specified financial and other goals. Supplemental agreements covering life insurance, savings and investment, medical, dental and vision care plans are effective until March 31, 1995. Supplemental agreements covering pension matters are effective until March 31, 1995. See "The Company" above for information relating to changes to union agreements during 1993.

INTERCONNECTIONS

The Company has interconnections for the transmission of electricity with Central Illinois Light Company, Central Illinois Public Service Company, Illinois Power Company, Indiana Michigan Power Company (a subsidiary of American Electric Power Company), Interstate Power Company, Iowa-Illinois Gas and Electric Company, Northern Indiana Public Service Company, Wisconsin Electric Power Company and Wisconsin Power and Light Company for the purpose of exchanging energy and for other forms of mutual assistance.

The Company and thirteen other Midwest power systems are members of MAIN. The members have entered into an agreement to work together to ensure the reliability of electric power production and transmission throughout the area they serve.

FRANCHISES

The Company's franchises are in general deemed adequate to permit it to engage in the business it now conducts.

In the city of Chicago, the Company operates under a nonexclusive electric franchise ordinance effective January 1, 1992, and continuing in force until December 31, 2020. The Company derives approximately one-third of its ultimate consumer revenues from the city of Chicago.

The electric business outside of the city of Chicago is conducted in municipalities under nonexclusive franchises and, where required, under certificates of convenience and necessity granted

14

by the ICC. The following tabulation summarizes as of December 31, 1993 the expiration dates of the electric franchises held in 395 of the 396 municipalities outside of the city of Chicago capable of granting franchises and in which the Company currently provides electric service.

FRANCHISE                        ESTIMATED
EXPIRATION          NUMBER OF    AGGREGATE
 PERIODS          MUNICIPALITIES POPULATION
- ----------        -------------- ----------
 1996-2006.......        4         108,000
 2007-2017.......       15         113,000
 2018-2028.......        4           5,000

FRANCHISE                        ESTIMATED
EXPIRATION          NUMBER OF    AGGREGATE
 PERIODS          MUNICIPALITIES POPULATION
- ----------        -------------- ----------
 2029-2039.......        1           *
 2040 and subse-
  quent years....      367       3,995,000
 No stated time
  limit..........        4          71,000

*Less than one thousand people.

BUSINESS AND COMPETITION

The electric utility business has historically been characterized by retail service monopolies in state or locally franchised service territories. Investor-owned electric utilities have tended to be vertically integrated with all aspects of their business subject to pervasive regulation. Although customers have normally been free to supply their electric power needs through self-generation, they have not had a choice of electric suppliers and self- generation has not generally been economical.

The market in which electric utilities like the Company operate has become more competitive and many observers believe competition will intensify. Self- generation can be economical for certain customers, depending on how and when they use electricity and other customer-specific considerations. A number of competitors are currently seeking to identify and do business with those customers. In addition, suppliers of other forms of energy are increasingly competing to supply energy needs which historically were supplied primarily or exclusively by electricity.

The Energy Policy Act of 1992 will likely have a significant effect on companies engaged in the generation, transmission, distribution, purchase and sale of electricity. This Act, among other things, expands the authority of the FERC to order electric utilities to transmit or "wheel" wholesale power for others, and facilitates the creation of non-utility electric generating companies. Although the Company cannot now predict the full impact of this Act, it will likely create and increase competition affecting the Company.

The Company is facing increased competition from several non-utility businesses which seek to provide energy services to users of electricity, especially larger customers such as industrial, commercial and wholesale customers. Such suppliers include independent power producers and unregulated energy services companies. In this regard, natural gas utilities operating in the Company's service area have established subsidiary ventures to provide heating, ventilating and air conditioning services, attempting to attract the Company's customers. Also, several utilities in the United States have established unregulated energy services subsidiaries which pursue business opportunities wherever they exist. In addition, cogeneration and energy services companies have begun soliciting the Company's customers to provide alternatives to using the Company's electricity.

On July 13, 1993, legislation became effective in Illinois which permits the Company to create certain unregulated subsidiaries, and to form a holding company, without being required to obtain the approval of the ICC. The legislation gives the Company and its affiliates flexibility to compete with unregulated competitors to provide energy services. The Company has created an unregulated subsidiary to engage in energy service activities and is in the process of obtaining necessary shareholder and Federal regulatory approvals to create a holding company structure for its operations. For additional information, see "Item B. Corporate Restructuring Plan" in the Company's Proxy Statement relating to its Annual Meeting of shareholders to be held May 10, 1994.

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EXECUTIVE OFFICERS OF THE REGISTRANT

                                              EFFECTIVE DATE OF ELECTION
       NAME         AGE       POSITION           TO PRESENT POSITION
------------------  --- --------------------- --------------------------
James J. O'Connor   57  Chairman                  March 1, 1980
Samuel K. Skinner   55  President                 February 1, 1993
Thomas J. Maiman    55  Senior Vice President     June 10, 1992
Robert J. Manning   51  Senior Vice President     June 10, 1992
Donald A. Petkus    52  Senior Vice President     June 10, 1992
Cordell Reed        56  Senior Vice President     June 5, 1987
Michael J. Wallace  46  Senior Vice President     December 9, 1993
John C. Bukovski    51  Vice President            February 1, 1989
Louis O. DelGeorge  46  Vice President            April 22, 1992
Harlan M. Dellsy    46  Vice President            September 15, 1986
William H. Downey   49  Vice President            June 10, 1992
J. Stanley Graves   57  Vice President            June 5, 1987
Emerson W. Lacey    52  Vice President            November 17, 1992
Paul D. McCoy       43  Vice President            June 10, 1992
Robert A. Paul      50  Vice President            January 26, 1994
James A. Small      50  Vice President            July 1, 1993
Pamela B. Strobel   41  Vice President and        June 1, 1993
                         General Counsel
John J. Viera       62  Vice President            March 29, 1977
Roger F. Kovack     45  Comptroller               February 1, 1989
Dennis F. O'Brien   48  Treasurer                 February 1, 1989
David A. Scholz     52  Secretary                 February 1, 1989

The present term of office of each of the above executive officers extends to the first meeting of the Company's Board of Directors after the next annual election of Directors scheduled to be held on May 10, 1994.

Each of the above executive officers (except for Messrs. Skinner, Paul and Small and Ms. Strobel), has been employed by the Company for more than five years in executive or management positions. Since January 1, 1989 and prior to his election as President of the Company, Mr. Skinner was a partner in the law firm of Sidley & Austin prior to February 1989, Secretary of the United States Department of Transportation from February 1989 to December 1991, Chief of Staff to the President of the United States from December 1991 to August 1992, and General Chairman of the Republican National Committee from August 1992 to January 1993. Since January 1, 1989 and prior to his election as Vice President, Mr. Paul was employed at Digital Equipment Corporation in the following capacities: prior to 1989 as Group Technology Manager, from 1989 to 1992 as Corporate Technology and Business Acquisition Manager and from 1992 to January 1994 as Corporate Purchasing Manager. Since January 1, 1989 and prior to his election as Vice President, Mr. Small was General Manager of Fuel Services at Georgia Power Company. Since January 1, 1989 and prior to her election as Vice President and General Counsel, Ms. Strobel was a partner in the law firm of Sidley & Austin. Since January 1, 1989 and prior to election to the positions shown above, the following officers held other positions in the Company: Messrs. Maiman, Manning and Petkus were Vice Presidents; Mr. Wallace was Manager of Projects and Construction Services prior to February 1, 1989, Manager of Engineering and Construction Services prior to July 25, 1990 and Vice President

16

thereafter; Messrs. Bukovski and DelGeorge were Assistant Vice Presidents; Mr. Downey was Operating Manager prior to September 1990 and Manager of Marketing and Customer Services thereafter; Mr. Lacey was Operations Manager--Fossil Stations prior to November 1989 and Fossil Engineering and Construction Manager thereafter; Mr. McCoy was Division Operating Manager--Northern from April 1988 to September 1990, Operating Manager from September 1990 to September 1991 and Manager of Transmission and Distribution Operations thereafter; Mr. Kovack was Assistant Comptroller; Mr. O'Brien was Assistant Treasurer; and Mr. Scholz was Assistant Vice President.

There are no family relationships among the executive officers, directors and nominees for director of the Company.

OPERATING STATISTICS

                                                  YEAR ENDED DECEMBER 31
                                             ----------------------------------
                                                1993        1992        1991
                                             ----------  ----------  ----------
Electric Operating Revenues (thousands of
 dollars)(1):
 Residential...............................  $2,341,155  $2,146,523  $2,306,940
 Small commercial and industrial...........   1,962,662   1,874,393   1,905,920
 Large commercial and industrial...........   1,437,680   1,373,939   1,408,725
 Public authorities........................     474,034     452,508     464,895
 Electric railroads........................      27,593      27,633      28,458
 Provisions for revenue refunds--ultimate
  consumers................................  (1,281,788)    (18,372)       (851)
 Sales for resale (net of provisions for
  revenue refunds).........................     237,573     113,603     107,755
 Other revenues............................      61,531      56,094      53,691
                                             ----------  ----------  ----------
    Total..................................  $5,260,440  $6,026,321  $6,275,533
                                             ----------  ----------  ----------
                                             ----------  ----------  ----------
Sales (millions of kilowatthours):
 Residential...............................      20,818      19,269      21,603
 Small commercial and industrial...........      23,463      22,662      23,152
 Large commercial and industrial...........      22,917      22,163      22,575
 Public authorities........................       6,741       6,562       6,776
 Electric railroads........................         405         410         422
 Sales for resale..........................      13,417       4,614       4,073
                                             ----------  ----------  ----------
    Total..................................      87,761      75,680      78,601
                                             ----------  ----------  ----------
                                             ----------  ----------  ----------
Sources of Electric Energy (millions of
 kilowatthours):
 Generation--
  Nuclear..................................      70,403      66,683      63,512
  Fossil...................................      23,839      13,188      18,500
  Fast-start peaking units.................          24          18          34
                                             ----------  ----------  ----------
    Net generation.........................      94,266      79,889      82,046
 Purchased power...........................         637       2,555       3,374
 Company use and losses....................      (7,142)     (6,764)     (6,819)
                                             ----------  ----------  ----------
    Total..................................      87,761      75,680      78,601
                                             ----------  ----------  ----------
                                             ----------  ----------  ----------
Cost of Fuel Consumed (per million Btu):
 Nuclear...................................       $0.52       $0.52       $0.49
 Coal......................................       $2.89       $2.96       $2.84
 Oil.......................................       $3.03       $3.02       $3.37
 Natural gas...............................       $2.70       $2.36       $2.48
 Average all fuels.........................       $1.15       $0.97       $1.07
Peak Load (kilowatts)......................  17,771,000  15,994,000  17,733,000
Number of Customers (at end of year):
 Residential...............................   3,009,508   2,981,141   2,955,962
 Small commercial and industrial...........     283,764     282,092     279,660
 Large commercial and industrial...........       1,503       1,527       1,509
 Public authorities........................      12,023      11,886      12,029
 Electric railroads and resale.............          19          18          18
                                             ----------  ----------  ----------
    Total..................................   3,306,817   3,276,664   3,249,178
                                             ----------  ----------  ----------
                                             ----------  ----------  ----------
Average Annual Revenue Per Residential
 Customer
 (excludes light bulb service).............     $779.54     $721.27     $780.43
Average Use Per Residential Customer
 (kilowatthours)...........................       6,954       6,497       7,333
Average Revenue Per Kilowatthour(2):
 Residential (excludes light bulb
  service).................................      11.21c      11.10c      10.64c
 Small commercial and industrial...........       8.36c       8.27c       8.23c
 Large commercial and industrial...........       6.27c       6.20c       6.24c


(1) See "Rate Proceedings" above.
(2) Average revenue per kilowatthour after reflecting provisions for revenue refunds and after reflecting revenue refunds and related interest credited to customers in 1993, 1992 and 1991, respectively, were as follows:

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                                    1993                             1992                             1991
                      -------------------------------- -------------------------------- --------------------------------
                            AFTER DEDUCTIONS FOR             AFTER DEDUCTIONS FOR             AFTER DEDUCTIONS FOR
                      -------------------------------- -------------------------------- --------------------------------
                      PROVISIONS FOR      REVENUE      PROVISIONS FOR      REVENUE      PROVISIONS FOR      REVENUE
                      REVENUE REFUNDS REFUNDS CREDITED REVENUE REFUNDS REFUNDS CREDITED REVENUE REFUNDS REFUNDS CREDITED
                      --------------- ---------------- --------------- ---------------- --------------- ----------------
Residential                8.61c           10.78c          10.90c           10.45c          10.61c           10.45c
Small commercial and
 industrial                6.80c            8.16c           8.20c            8.02c           8.22c            8.13c
Large commercial and
 industrial                5.07c            6.10c           6.13c            5.97c           6.23c            6.16c

ITEM 2. PROPERTIES.

The Company's electric properties are located in Illinois and the Indiana Company's electric facilities are located in Indiana. In management's opinion, the companies' operating properties are adequately maintained and are substantially in good operating condition. The electric generating, transmission, distribution and general facilities of the companies represent approximately 69%, 9%, 19% and 3%, respectively, of their gross investment in electric plant and equipment in service.

The electric generating stations, substations and a portion of the transmission rights of way of the companies are owned in fee. A significant portion of the electric transmission and distribution facilities are located over or under highways, streets, other public places or property owned by others, for which permits, grants, easements or licenses (deemed satisfactory by the Company, but without examination of underlying land titles) have been obtained. The principal plants and properties of the Company are subject to the lien of the Company's Mortgage dated July 1, 1923, as amended and supplemented, under which the Company's first mortgage bonds are issued.

The net generating capability of the Company and the Indiana Company is derived from the following electric generating facilities:

                                                            NET GENERATING
                                                              CAPABILITY
STATION                                  LOCATION            (KILOWATTS)
-------                              ----------------       --------------
Nuclear--
 Zion                                Zion                      2,080,000
 Dresden                             Near Morris               1,588,000
 Quad-Cities                         Near Cordova              1,183,000(1)
 LaSalle County                      Near Seneca               2,156,000
 Byron                               Near Byron                2,240,000
 Braidwood                           Near Braidwood            2,240,000
Fossil--
 Collins                             Near Morris               2,698,000
 Powerton                            Near Pekin                1,400,000
 Joliet 6                            Near Joliet                 302,000
 Joliet 7 & 8                        Near Joliet               1,025,000
 Kincaid                             Near Taylorville          1,108,000
 Will County                         Near Lockport             1,092,000
 Waukegan                            Waukegan                    725,000
 Crawford                            Chicago                     542,000
 State Line                          Hammond, Indiana            490,000
 Fisk                                Chicago                     321,000
Fast-Start Peaking Units(2)          Various                   1,332,000
                                                              ----------
Net non-summer generating capability                          22,522,000
Deduct--Summer limitations                                       557,000
                                                              ----------
Net summer generating capability                              21,965,000
                                                              ----------
                                                              ----------


(1) Excludes the 25% undivided interest of Iowa-Illinois Gas and Electric Company in the Quad-Cities station.
(2) Generating units normally designed for use only during the maximum load period of a designated time interval. Such units are capable of starting and coming on-line quickly.

18

Major electric transmission lines owned and in service are as follows:

VOLTAGE                                                            CIRCUIT
(VOLTS)                                                             MILES
-------                                                            -------
765,000...........................................................     90
345,000...........................................................  2,513
138,000...........................................................  2,692

The Company's electric distribution system includes 37,275 pole line miles of overhead lines and 29,666 cable miles of underground lines. A total of approximately 1,315,024 poles are included in the Company's distribution system, of which about 589,957 are owned jointly with telephone companies.

ITEM 3. LEGAL PROCEEDINGS.

During 1989 and 1991, actions were brought in federal and state courts in Colorado against the Company and its subsidiary, Cotter Corporation (Cotter), alleging that Cotter has permitted radioactive and other hazardous material to be released from its mill into areas owned or occupied by the plaintiffs resulting in property damage and potential adverse health effects. The plaintiffs seek from Cotter and the Company unspecified compensatory, exemplary and medical monitoring fund damages, unspecified response costs under CERCLA, and temporary and permanent injunctive relief. Although the cases will necessarily involve the resolution of numerous contested issues of fact and law, the Company's determination is that these actions will not have a material adverse impact on the Company's financial statements.

In October 1990, the Company filed a complaint in the Circuit Court of Cook County, Illinois (Circuit Court), against Westinghouse Electric Corporation (Westinghouse) and certain of its employees. The complaint alleges that the defendants knowingly concealed information regarding the durability of the metal used in the steam generators (a major component of the nuclear steam supply systems) at the Zion, Byron and Braidwood stations. The complaint further alleges that the defects in the steam generators will prevent the plants from maintaining their full power output through their forty year design life without costly remanufacture or replacement of the steam generators. Damages, including punitive damages, in an unspecified amount are claimed. Westinghouse has filed a counterclaim against the Company which seeks recovery of Westinghouse's costs of defense and damages of approximately $13 million.

Shareholder derivative lawsuits were filed on October 1, 1992 and on April 14, 1993 in the Circuit Court against current and former directors of the Company alleging that they breached their fiduciary duty and duty of care to the Company in connection with the management of the activities associated with the construction of the Company's four most recently completed nuclear generating units. The lawsuits sought restitution to the Company by the defendants for unquantified and undefined losses and costs alleged to have been incurred by the Company. Both lawsuits were dismissed by the Circuit Court; however, appeals are pending before the Illinois Appellate Court.

A number of complaints have been filed by former employees with the Equal Employment Opportunity Commission, and several lawsuits have been filed by former employees in the United States District Court, alleging that the employees' terminations (which occurred as part of the Company's management workforce reductions that were implemented in the second half of 1992) involved discrimination on the basis of age, race, sex, national origin and/or disabilities, in violation of applicable law. The complainants are seeking, among other things, awards of back pay and lost benefits, reinstatement, pecuniary damages, and costs and attorneys' fees.

See "Item 1. Business," subcaptions "Construction Program," "Rate Proceedings," "Fuel Supply" and "Regulation" above for information concerning legal proceedings involving various regulatory agencies.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

None.

19

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.

The current ratings of the Company's securities by three principal securities rating agencies are as follows:

                                                              STANDARD DUFF &
                                                      MOODY'S & POOR'S PHELPS
                                                      ------- -------- ------
First mortgage and secured pollution control bonds..   Baa2     BBB    BBB
Publicly-held debentures and unsecured pollution
 control obligations................................   Baa3     BBB-   BBB-
Convertible preferred stock.........................   baa3     BBB-   BB+
Preference stock....................................   baa3     BBB-   BB+
Commercial paper....................................   P-2      A-2    Duff 2

The foregoing ratings reflect downgradings during 1992 and in January 1993 as a result of developments in the proceedings leading to, and the issuance of, the Remand Order. In December 1993, Standard & Poor's affirmed its ratings of the Company's debt, although on October 27, 1993, it changed its "outlook" on the Company's ratings from stable to negative as part of its larger assessment of the electric utility industry. In December 1993, Moody's and Duff & Phelps affirmed their ratings of the Company's securities, and Moody's rating outlook on the Company remained stable.

The above ratings reflect only the views of such rating agencies and each rating should be evaluated independently of any other rating. Generally, rating agencies base their ratings on information furnished to them by the issuing company and on investigations, studies and assumptions by the rating agencies. There is no assurance that any particular rating will continue for any given period of time or that it will not be changed or withdrawn entirely if in the judgment of the rating agency circumstances so warrant. Such ratings are not a recommendation to buy, sell or hold securities.

The following is a brief summary of the meanings of the above ratings and the relative rank of the above ratings within each rating agency's classification system.

Moody's top four long-term debt ratings (Aaa, Aa, A and Baa) are generally considered "investment grade." Obligations rated Baa are considered as medium grade obligations, neither highly protected nor poorly secured. Such obligations lack outstanding investment characteristics and in fact have speculative characteristics. (A numerical modifier in Moody's system shows relative standing within the principal rating category, with 1 indicating the high end of that category, 2 the mid-range and 3 the low end.) Standard & Poor's top four bond ratings (AAA, AA, A and BBB) are generally considered to describe obligations in which investment characteristics predominate. Obligations rated BBB are regarded as having an adequate capacity to pay interest and repay principal. It normally exhibits adequate protection parameters, but adverse economic conditions or changing circumstances are more likely to lead to weakened capacity to pay. (A plus or minus sign in Standard & Poor's system shows relative standing within the major rating categories.)

Both Moody's and Standard & Poor's preferred stock ratings represent relative security of dividends. Moody's top four preferred stock ratings (aaa, aa, a and baa) are generally considered "investment grade." Moody's baa rating describes a medium grade preferred stock, neither highly protected nor poorly secured. Standard & Poor's top four preferred stock ratings (AAA, AA, A and BBB) are generally considered "investment grade." Standard & Poor's BBB rating applies to medium grade preferred stock which is below A ("sound") and above BB ("lower grade").

20

Duff & Phelps' credit rating scale has 17 alphabetical categories, of which ratings AAA through BBB (with AAA being the highest rating) represent investment grade securities. Ratings of BBB+, BBB and BBB- represent the lowest category of "investment grade" rating. This category describes securities with below average protection factors but which are considered sufficient for institutional investment. Considerable variability in risk occurs during economic cycles. Ratings of BB+, BB and BB- describe below investment grade securities which are deemed likely to meet obligations when due. Present or prospective financial protection factors of these securities fluctuate according to industry conditions or company fortunes.

Moody's Prime-2 (P-2) rating of commercial paper is the second highest of three possible ratings; P-2 describes a strong capacity for repayment of short- term promissory obligations. Standard & Poor's rates commercial paper in four basic categories with A-2 being the second highest category. Duff & Phelps rates commercial paper in three basic categories, with Duff 2 indicating the middle category.

Further explanations of the significance of ratings may be obtained from the rating agencies.

Additional information required by Item 5 is incorporated herein by reference to the "Price Range and Dividends Paid Per Share of Common Stock" on page 26 of the January 28, 1994 Form 8-K/A-1 Report.

ITEM 6. SELECTED FINANCIAL DATA.

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

The information required by Items 6, 7 and 8 is incorporated herein by reference to the "Summary of Selected Consolidated Financial Data" on page 26, "Management's Discussion and Analysis of Financial Condition and Results of Operations" on pages 10 through 22, and the audited consolidated financial statements and notes thereto on pages 25 and 27 through 51 of the January 28, 1994 Form 8-K/A-1 Report.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE.

None.

21

PART III

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

The information required by Item 10 relating to directors and nominees for election as directors at the Company's Annual Meeting of shareholders to be held on May 10, 1994 is incorporated herein by reference to pages 12 through 14 of the Company's definitive Proxy Statement (1994 Proxy Statement) filed with the Securities and Exchange Commission pursuant to Regulation 14A under the Securities Exchange Act of 1934. The information required by Item 10 relating to executive officers is set forth in Part I of this Annual Report on Form 10-K under "Item 1. Business," subcaption "Executive Officers of the Registrant."

ITEM 11. EXECUTIVE COMPENSATION.

The information required by Item 11 is incorporated herein by reference to the paragraph labelled "Compensation of Directors" on page 14, under the heading "Executive Compensation--Summary Compensation Table" on page 16 and under the heading "Executive Compensation--Service Annuity System Plan" on page 17 of the 1994 Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.

The information required by Item 12 is incorporated herein by reference to the stock ownership information under the heading "Security Ownership of Certain Beneficial Owners and Management" on pages 10 and 11 of the 1994 Proxy Statement.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

None.

22

PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K.

(a)FINANCIAL STATEMENTS, FINANCIAL STATEMENT SCHEDULES AND EXHIBITS:

                                                                  PAGE OF
                                                                JANUARY 28,
                                                                 1994 FORM
                                                                  8-K/A-1
                                                                  REPORT
                                                                -----------
The following financial statements are incorporated herein by
reference to the Company's January 28, 1994 Form 8-K/A-1 Re-
port:

  Report of Independent Public Accountants.....................     25
  Statements of Consolidated Income for each of the three years
   in the period ended December 31, 1993.......................     27
  Consolidated Balance Sheets--December 31, 1993 and December
   31, 1992....................................................    28-29
  Statements of Consolidated Capitalization--December 31, 1993
   and December 31, 1992.......................................     30
  Statements of Consolidated Cash Flows for each of the three
   years in the period ended December 31, 1993.................     31
  Statements of Consolidated Retained Earnings for each of the
   three years in the period ended December 31, 1993...........     32
  Statements of Consolidated Premium on Common Stock and Other
   Paid-In Capital for each of the three years in the period
   ended December 31, 1993.....................................     32
  Notes to Financial Statements................................    33-51

                                                               PAGE OF THIS
                                                                REPORT ON
                                                                FORM 10-K
                                                               ------------
The following supplemental schedules are included herein:

  Report of Independent Public Accountants on Supplemental
   Schedules..................................................      28
  Schedule V--Property, Plant and Equipment for each of the
               three years in the period ended December 31,
               1993...........................................    29-30
  Schedule VI--Accumulated Depreciation, Depletion and Amorti-
                zation of Property, Plant and Equipment for
                each of the three years in the period ended
                December 31, 1993.............................    31-32
  Schedule VII--Guarantees of Securities of Other Issuers at
                 December 31, 1993............................      33
  Schedule VIII--Valuation and Qualifying Accounts for each of
                  the three years in the period ended December
                  31, 1993....................................      34
  Schedule IX--Short-Term Borrowings for each of the three
                years in the period ended December 31, 1993...      35

The following schedules are omitted as not applicable or not required under rules of Regulation S-X: I, II, III, IV, XI, XII, XIII and XIV. Significant information required by Schedule X--Supplementary Income Statement Information is included as Note 15 of Notes to Financial Statements incorporated herein by reference to the January 28, 1994 Form 8-K/A-1 Report.

23

Individual financial statements and schedules of the Company have been omitted because it is primarily an operating company and all subsidiaries included in the consolidated financial statements are totally-held subsidiaries.

Financial statements and schedules of the Company's nonconsolidated subsidiaries have been omitted because the investments are not material in relation to the Company's financial position and results of operations. As of December 31, 1993, the assets of the nonconsolidated subsidiaries in the aggregate approximated 1% of the Company's consolidated assets and for the year 1993 annual revenues of the nonconsolidated subsidiaries in the aggregate were less than 1% of the Company's consolidated annual revenues.

The following exhibits are filed herewith or incorporated herein by reference. Documents indicated by an asterisk (*) are incorporated herein by reference to the File No. indicated.

EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
*(3)-1     Restated Articles of Incorporation of the Company effective February 20,
            1985 (File No. 1-1839, Form 10-K for the year ended December 31, 1985,
            Exhibit (3)-1).
*(3)-2     Statement of Resolution Establishing Series, relating to the establishment
            of a new series of preference stock known as the "$9.30 Cumulative Pref-
            erence Stock," dated December 10, 1985 (File No. 1-1839, Form 10-K for
            the year ended December 31, 1992, Exhibit (3)-2).
*(3)-3     Statement of Resolution Establishing Series, relating to the establishment
            of a new series of preference stock known as the "$9.00 Cumulative Pref-
            erence Stock," dated July 25, 1990 (File No. 1-1839, Form 10-K for the
            year ended December 31, 1990, Exhibit (3)-2).
*(3)-4     Statement of Resolution Establishing Series, relating to the establishment
            of a new series of preference stock known as the "$6.875 Cumulative Pref-
            erence Stock," dated May 21, 1993 (File No. 1-1839, Form 8-K dated May
            21, 1993, Exhibit (3)-1).
*(3)-5     By-Laws of the Company, effective September 2, 1988 (File No. 1-1839, Form
            10-Q for the quarter ended September 30, 1988, Exhibit (3)).
*(3)-6     Amendment to By-Laws of the Company, effective July 1, 1989 (File No.
            1-1839, Form 10-Q for the quarter ended June 30, 1989, Exhibit (3)).
*(3)-7     Amendment to By-Laws of the Company, effective February 1, 1991 (File No.
            1-1839, Form 10-K for the year ended December 31, 1990, Exhibit (3)-4).
*(3)-8     Amendment to By-Laws of the Company, effective September 10, 1992 (File
            No. 1-1839, Form 10-K for the year ended December 31, 1992, Exhibit (3)-
            6).
*(4)-1     Mortgage of the Company to Illinois Merchants Trust Company, Trustee (Con-
            tinental Illinois National Bank and Trust Company of Chicago, successor
            Trustee), dated July 1, 1923, Supplemental Indenture thereto dated August
            1, 1944, and amendments and supplements thereto dated, respectively, Au-
            gust 1, 1946, April 1, 1953, April 1, 1966, November 1, 1966, December 1,
            1966, March 31, 1967, April 1, 1967, February 1, 1968, July 1, 1968, Oc-
            tober 1, 1968, February 28, 1969, May 29, 1970, January 1, 1971, June 1,
            1971, May 31, 1972, June 1, 1973, June 15, 1973, October 15, 1973, May
            31, 1974, July 1, 1974, June 13, 1975, May 28, 1976, January 15, 1977,
            June 1, 1977 and June 3, 1977 (File No. 2-60201, Form S-7, Exhibit 2-1).

24

EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
*(4)-2     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, December 1, 1977, May 17, 1978, August 31, 1978, June 18, 1979, June
            20, 1980, April 16, 1981, April 30, 1982, April 15, 1983, April 13, 1984,
            March 1, 1985 and April 15, 1985 (File No. 2-99665, Form S-3, Exhibit
            (4)-3).
*(4)-3     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, April 15, 1986 and May 1, 1986 (File No. 33-6879, Form S-3, Exhibit
            (4)-9).
*(4)-4     Supplemental Indenture to Mortgage dated July 1, 1923 dated January 12,
            1987 (File No. 33-13193, Form S-3, Exhibit (4)-6).
*(4)-5     Supplemental Indenture to Mortgage dated July 1, 1923 dated June 30, 1989
            (File No. 33-32929, Form S-3, Exhibit (4)-11).
*(4)-6     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, February 15, 1990 and June 15, 1990 (File No. 33-38232, Form S-3, Ex-
            hibits (4)-11 and (4)-12).
*(4)-7     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, June 1, 1991, October 1, 1991 and October 15, 1991 (File No. 33-
            44018, Form S-3, Exhibits (4)-12, (4)-13 and (4)-14).
*(4)-8     Supplemental Indenture to Mortgage dated July 1, 1923 dated February 1,
            1992 (File No. 1-1839, Form 10-K for the year ended December 31, 1991,
            Exhibit (4)-18).
*(4)-9     Supplemental Indenture to Mortgage dated July 1, 1923 dated May 15, 1992
            (File No. 33-48542, Form S-3, Exhibit (4)-14).
*(4)-10    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, July 15, 1992, September 15, 1992 and October 1, 1992 (File No. 33-
            53766, Form S-3, Exhibits (4)-13, (4)-14 and (4)-15).
*(4)-11    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, February 1, 1993 and March 1, 1993 (File No. 1-1839, Form 10-K for
            the year ended December 31, 1992, Exhibits (4)-14 and (4)-15).
*(4)-12    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, April 1, 1993 and April 15, 1993 (File No. 33-64028, Form S-3, Exhib-
            its (4)-12 and (4)-13).
*(4)-13    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, June 15, 1993 and July 1, 1993 (File No. 1-1839, Form 8-K dated May
            21, 1993, Exhibits (4)-1 and (4)-2).
*(4)-14    Supplemental Indenture to Mortgage dated July 1, 1923 dated July 15, 1993
            (File No. 1-1839, Form 10-Q for the quarter ended June 30, 1993, Exhibit
            (4)-1).
 (4)-15    Supplemental Indenture to Mortgage dated July 1, 1923 dated January 15,
            1994.
*(4)-16    Indentures of the Company to The First National Bank of Chicago, Trustee
            (Harris Trust and Savings Bank, successor Trustee), dated April 1, 1949,
            October 1, 1949, October 1, 1950, October 1, 1954, January 1, 1958, Janu-
            ary 1, 1959 and December 1, 1961 (File No. 1-1839, Form 10-K for the year
            ended December 31, 1982, Exhibit (4)-20).
*(4)-17    Indenture of the Company dated February 15, 1973 to The First National
            Bank of Chicago, Trustee (LaSalle National Bank, successor Trustee), and
            Supplemental Indenture thereto dated July 13, 1973 (File No. 2-66100,
            Form S-16, Exhibit (b)-2).
*(4)-18    Indenture dated as of September 1, 1987 between the Company and Citibank,
            N.A., Trustee relating to Notes (File No. 33-20619, Form S-3, Exhibit
            (4)-13).

25

EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
*(4)-19    Supplemental Indenture to Indenture dated September 1, 1987 dated Septem-
            ber 15, 1987 (File No. 33-20619, Form S-3, Exhibit (4)-14).
*(4)-20    Supplemental Indenture to Indenture dated September 1, 1987 dated May 18,
            1988 (File No. 33-23036, Form S-3, Exhibit (4)-14).
*(4)-21    Supplemental Indenture to Indenture dated September 1, 1987 dated July 14,
            1989 (File No. 33-32929, Form S-3, Exhibit (4)-16).
*(4)-22    Supplemental Indenture to Indenture dated September 1, 1987 dated April 1,
            1991 (File No. 33-44018, Form S-3, Exhibit (4)-21).
*(4)-23    Supplemental Indenture to Indenture dated September 1, 1987 dated April
            15, 1992 (File No. 33-48542, Form S-3, Exhibit (4)-22).
*(4)-24    Supplemental Indenture to Indenture dated September 1, 1987 dated July 15,
            1992 (File No. 33-53766, Form S-3, Exhibit (4)-24).
*(4)-25    Supplemental Indenture to Indenture dated September 1, 1987 dated October
            15, 1993 (File No. 1-1839, Form 10-Q for the quarter ended September 30,
            1993, Exhibit (4)-1).
*(4)-26    Credit Agreement dated as of October 1, 1991, among Commonwealth Edison
            Company, as borrower, the Banks named therein and the other Lenders from
            time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form
            10-K for the year ended December 31, 1991, Exhibit (4)-27).
*(4)-27    Credit Agreement dated as of October 1, 1991, among Commonwealth Edison
            Company, as borrower, the Banks named therein and the other Lenders from
            time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form
            10-K for the year ended December 31, 1991, Exhibit (4)-28).
 (4)-28    Letter Agreement dated as of October 4, 1993, among Commonwealth Edison
            Company and certain of the Banks party to the Credit Agreement dated as
            of October 1, 1991.
*(4)-29    Term Loan Agreement dated as of January 7, 1992, between Commonwealth Edi-
            son Company, as borrower, and The First National Bank of Chicago, indi-
            vidually and as agent (File No. 1-1839, Form 10-K for the year ended De-
            cember 31, 1992, Exhibit (4)-28).
*(4)-30    Term Loan Agreement dated as of January 15, 1992, between Commonwealth Ed-
            ison Company, as borrower, and Westpac Banking Corporation, Chicago
            Branch, individually and as agent (File No. 1-1839, Form 10-K for the
            year ended December 31, 1992, Exhibit (4)-29).
*(4)-31    Term Loan Agreement dated as of January 16, 1992, between Commonwealth Ed-
            ison Company, as borrower, and The Bank of New York, individually and as
            agent (File No. 1-1839, Form 10-K for the year ended December 31, 1992,
            Exhibit (4)-29).
 (10)-1    Nuclear Fuel Lease Agreement dated as of November 23, 1993, between CommEd
            Fuel Company, Inc., as Lessor, and Commonwealth Edison Company, as Les-
            see.
*(10)-2    1993 Long-Term Incentive Plan (File No. 1-1839, Proxy Statement dated
            March 26, 1993, Exhibit A).
 (10)-3    1994 Long-Term Performance Unit Award for Executive and Group Level Em-
            ployes Payable in 1995 under the 1993 Long-Term Incentive Plan.
 (10)-4    1994 Long-Term Performance Unit Award for Executive and Group Level Em-
            ployes Payable in 1996 under the 1993 Long-Term Incentive Plan.

26

EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
 (10)-5    1994 Long-Term Performance Unit Award for Executive and Group Level Em-
            ployes Payable in 1997 under the 1993 Long-Term Incentive Plan.
 (10)-6    1994 Variable Compensation Award for Management Employes under the 1993
            Long-Term Incentive Plan.
*(10)-7    Deferred Compensation Plan (included in Exhibit (3)-1 above).
*(10)-8    Management Incentive Compensation Plan, effective January 1, 1989 (File
            No. 1-1839, Form 10-K for the year ended December 31, 1988, Exhibit (10)-4).
*(10)-9    Amendments to Management Incentive Compensation Plan, dated December 14,
            1989 and March 21, 1990 (File No. 1-1839, Form 10-K for the year ended
            December 31, 1989, Exhibit (10)-5).
*(10)-10   Amendment to Management Incentive Compensation Plan, dated March 21, 1991
            (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit
            (10)-6).
*(10)-11   Retirement Plan for Directors, effective January 1, 1987 (File No. 1-1839,
            Form 10-K for the year ended December 31, 1988, Exhibit (10)-5).
*(10)-12   Executive Group Life Insurance Plan (File No. 1-1839, Form 10-K for the
            year ended December 31, 1980, Exhibit (10)-3).
*(10)-13   Amendment to the Executive Group Life Insurance Plan (File No. 1-1839,
            Form 10-K for the year ended December 31, 1981, Exhibit (10)-4).
*(10)-14   Amendment to the Executive Group Life Insurance Plan dated December 12,
            1986 (File No. 1-1839, Form 10-K for the year ended December 31, 1986,
            Exhibit (10)-6).
*(10)-15   Amendment of Executive Group Life Insurance Plan to implement program of
            "split dollar life insurance" dated December 13, 1990 (File No. 1-1839,
            Form 10-K for the year ended December 31, 1990, Exhibit (10)-10).
*(10)-16   Commonwealth Edison Company Supplemental Management Retirement Plan (File
            No. 1-1839, Form 10-K for the year ended December 31, 1985, Exhibit
            (10)-6).
*(10)-17   Amendment of Executive Group Life Insurance Plan to stabilize the death
            benefit applicable to participants dated July 22, 1992 (File No. 1-1839,
            Form 10-K for the year ended December 31, 1992, Exhibit (10)-13).
*(10)-18   Letter Agreement dated December 16, 1992 between Commonwealth Edison Com-
            pany and Samuel K. Skinner (File No. 1-1839, Form 10-K for the year ended
            December 31, 1992, Exhibit (10)-14).
 (12)      Statement re computation of ratios of earnings to fixed charges and ratios
            of earnings to fixed charges and preferred and preference stock dividend
            requirements.
 (21)      Subsidiaries of Commonwealth Edison Company.
 (23)      Consent of experts.
 (24)      Powers of attorney of Directors whose names are signed to this Form 10-K
            pursuant to such powers.
 (99)      Commonwealth Edison Company's Current Report on Form 8-K/A-1 dated January
            28, 1994.

Pursuant to Item 601(b)(4)(iii) of Regulation S-K, the Company hereby agrees to furnish to the Securities and Exchange Commission, upon request, any instrument defining the rights of holders of long-term debt of the Company not filed as an exhibit herein. No such instrument authorizes securities in excess of 10% of the total assets of the Company.

(B) REPORTS ON FORM 8-K:

None.

27

REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
ON SUPPLEMENTAL SCHEDULES

To Commonwealth Edison Company:

We have audited in accordance with generally accepted auditing standards, the consolidated financial statements of Commonwealth Edison Company and subsidiary companies incorporated by reference in this Annual Report on Form 10-K, and have issued our report thereon dated March 18, 1994. Our report on the financial statements includes an explanatory paragraph that describes the Company's change in its method of accounting for postretirement health care benefits and income taxes as discussed in Notes 13 and 14, respectively, to the financial statements.

Our audits were made for the purpose of forming an opinion on the basic financial statements taken as a whole. The schedules listed on page 23, Item 14.(a), are presented for purposes of complying with the Securities and Exchange Commission's rules and are not part of the basic financial statements. These schedules have been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, fairly state in all material respects the financial data required to be set forth therein in relation to the basic financial statements taken as a whole.

Arthur Andersen & Co. Chicago, Illinois
March 18, 1994

28

SCHEDULE V

(PAGE 1 OF 2)

COMMONWEALTH EDISON COMPANY AND SUBSIDIARY COMPANIES
SCHEDULE V--PROPERTY, PLANT AND EQUIPMENT (a)
--THOUSANDS OF DOLLARS--


            COLUMN A               COLUMN B       COLUMN C        COLUMN D  COLUMN E                COLUMN F
- --------------------------------  -----------    ----------       -------- ----------              -----------
                                                                             OTHER
                                  BALANCE AT                               CHANGES--
                                   BEGINNING     ADDITIONS        RETIRE-     ADD                  BALANCE AT
         CLASSIFICATION             OF YEAR       AT COST          MENTS    (DEDUCT)               END OF YEAR
- --------------------------------  -----------    ----------       -------- ----------              -----------
FOR THE YEAR ENDED DECEMBER 31,
              1991
- --------------------------------
Utility Plant:
 Plant and equipment, at original
  cost:
 Electric--
  Plant in service--
   Production...................  $16,834,598    $  235,290       $ 34,820 $ (733,759)(b)          $16,303,717(b)
                                                                                2,408 (c)

   Transmission.................    1,933,689        82,242            729      1,535 (c)            2,016,737
   Distribution.................    3,830,855       356,703         45,103     (1,708)(c)            4,140,747

                                                                                 (146)(c)
   General......................      379,574        51,254          4,848     (5,767)(e)              420,067(d)
 Construction work in progress..      816,247       219,748(f)         --         --                 1,035,995

                                                                                  383 (c)
 Plant held for future use......      455,532        94,609(g)(h)      --     (16,480)(i)              534,044
                                  -----------    ----------       -------- ----------              -----------
                                  $24,250,495    $1,039,846       $ 85,500 $ (753,534)             $24,451,307(b)
                                  ===========    ==========       ======== ==========              ===========
 Nuclear fuel, at cost..........  $ 2,008,268    $  248,089(j)    $151,797 $      (31)(k)(l)(m)(n) $ 2,104,529(o)
                                  ===========    ==========       ======== ==========              ===========
FOR THE YEAR ENDED DECEMBER 31,
              1992
- --------------------------------
Utility Plant:
 Plant and equipment, at original
  cost:
 Electric--
  Plant in service--
   Production...................  $16,303,717(b) $  314,497       $ 37,475 $      (40)(c)          $16,580,699
   Transmission.................    2,016,737        67,464          9,736         42 (c)            2,074,507
   Distribution.................    4,140,747       387,214         44,213        (57)(c)            4,483,691

                                                                                    7 (c)
   General......................      420,067        96,217         10,412     (4,389)(e)              501,490(d)

                                                                               (2,535)(p)
 Construction work in progress..    1,035,995       132,153(f)         --        (461)(c)            1,165,152

                                                                                 (138)(c)
 Plant held for future use......      534,044        78,297(g)(h)      --     (16,920)(i)              595,283
                                  -----------    ----------       -------- ----------              -----------
                                  $24,451,307(b) $1,075,842       $101,836 $  (24,491)             $25,400,822
                                  ===========    ==========       ======== ==========              ===========
 Nuclear fuel, at cost..........  $ 2,104,529    $  217,821(j)    $302,841 $   (6,762)(k)(l)(m)(n) $ 2,012,747(o)
                                  ===========    ==========       ======== ==========              ===========

See Notes on Page 2 of 2.



29

SCHEDULE V

(PAGE 2 OF 2)

COMMONWEALTH EDISON COMPANY AND SUBSIDIARY COMPANIES
SCHEDULE V--PROPERTY, PLANT AND EQUIPMENT--CONCLUDED (a)
--THOUSANDS OF DOLLARS--


        COLUMN A          COLUMN B   COLUMN C         COLUMN D  COLUMN E             COLUMN F
- ------------------------ ----------- ---------        --------  ---------           -----------
                                                                  OTHER
                         BALANCE AT                             CHANGES--
                          BEGINNING  ADDITIONS        RETIRE-      ADD              BALANCE AT
     CLASSIFICATION        OF YEAR    AT COST          MENTS    (DEDUCT)            END OF YEAR
- ------------------------ ----------- ---------        --------  ---------           -----------
 FOR THE YEAR ENDED DE-
    CEMBER 31, 1993
- ------------------------
Utility Plant:
 Plant and equipment, at
  original cost:
 Electric--
  Plant in service--
   Production........... $16,580,699 $ 430,013        $ 98,593  $     (71)(c)       $16,912,048
   Transmission.........   2,074,507   129,380            (322)       820 (c)         2,205,029
   Distribution.........   4,483,691   275,533          25,044       (807)(c)         4,733,373
   General..............     501,490   126,042          13,062     (2,789)(c)           615,443(d)
                                                                    3,762 (e)
 Construction work in
  progress..............   1,165,152  (123,853)(f)         --        (590)(c)         1,040,014
                                                                     (695)(p)
 Plant held for future
  use...................     595,283     4,453 (g)(h)      --      (1,921)(c)           592,027
                                                                   (5,788)(i)
                         ----------- ---------        --------  ---------           -----------
                         $25,400,822 $ 841,568        $136,377  $  (8,079)          $26,097,934
                         =========== =========        ========  =========           ===========
 Nuclear fuel, at cost.. $ 2,012,747 $260,703 (j)     $200,627  $   1,215 (k)(l)(m) $ 2,074,038(o)
                         =========== =========        ========  =========           ===========

Notes:
(a) Reference is made to Note 1 of Notes to Financial Statements in the Current Report on Form 8-K/A-1 dated January 28, 1994, incorporated herein by reference, for information relating to the accounting policies for depreciation of plant and equipment and amortization of nuclear fuel.
(b) The 1991 balance includes a reduction of $733,759 from plant in service reflecting the write-offs in March and November 1991 of disallowed plant costs relating to Byron Unit 2 and Braidwood Units 1 and 2.
(c) Transfers to and from nonutility property and between other plant and equipment accounts.
(d) Includes plant and equipment under capital leases of $11,266, $6,877 and $10,639 at December 31, 1991, 1992 and 1993, respectively.
(e) Leased plant and equipment capitalized net of amortization.
(f) Net of transfers to plant in service and to nonutility property.
(g) Includes investment in coal reserves of $78,678, $79,961 and $43 during the years 1991, 1992 and 1993, respectively.
(h) Net of transfers of property to construction work in progress.
(i) Coal reserves transferred to fuel inventory.
(j) Excludes nuclear fuel expenditures related to nonutility property of $2,470, $2,473 and $667 for 1991, 1992 and 1993, respectively, for uranium exploration and mine development.
(k) Includes additions of $148,652, $230,454 and $286,977 for discharged nuclear fuel assemblies previously leased during the years 1991, 1992 and 1993, respectively.
(l) Includes reductions for nuclear fuel sold and leased back to the Company of $240,263, $190,830 and $204,254 for the years 1991, 1992 and 1993, respectively.
(m) Includes net additions/(reductions) for leased nuclear fuel capitalized of $94,880, $(37,145) and $(81,508) for the years 1991, 1992 and 1993, respectively.
(n) Charged to expense for writedowns of $3,300 and $9,241 for the years 1991 and 1992, respectively, to reflect the decline in realizable value of uranium ore inventory.
(o) Includes leased nuclear fuel capitalized of $1,362,433, $1,325,287 and $1,243,779 at December 31, 1991, 1992 and 1993, respectively.
(p) Write-off of expenditures for preliminary engineering and analysis deemed to be not useful.



30

SCHEDULE VI

(PAGE 1 OF 2)

COMMONWEALTH EDISON COMPANY AND SUBSIDIARY COMPANIES

SCHEDULE VI--ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION OF PROPERTY,
PLANT AND EQUIPMENT (a)
--THOUSANDS OF DOLLARS--


        COLUMN A           COLUMN B   COLUMN C  COLUMN D     COLUMN E          COLUMN F
- ------------------------  ---------- ---------- --------     ---------        -----------
                                     ADDITIONS                 OTHER
                          BALANCE AT CHARGED TO              CHANGES--
                          BEGINNING  COSTS AND  RETIRE-         ADD           BALANCE AT
     CLASSIFICATION        OF YEAR    EXPENSES   MENTS       (DEDUCT)         END OF YEAR
- ------------------------  ---------- ---------- --------     ---------        -----------
 FOR THE YEAR ENDED
    DECEMBER 31, 1991
- ------------------------
Accumulated Provision
 for Depreciation of
 Plant and Equipment:
 Electric--
  Production............  $4,112,035  $632,782  $ 62,278      $(82,689)(b)    $4,552,347
                                                               (47,503)(c)

  Transmission..........     640,563    45,859     3,332         1,110 (c)       684,200

  Distribution..........   1,961,534   153,811    62,139        (1,115)(c)     2,054,748
                                                                 2,657 (d)

  General...............     135,847    20,783     5,395          (103)(c)       151,132
                          ----------  --------  --------     ---------        ----------
                          $6,849,979  $853,235  $133,144 (e) $(127,643)       $7,442,427
                          ==========  ========  ========     =========        ==========
Accumulated Provision
 for Amortization of
 Nuclear Fuel...........  $1,295,733  $ 18,987  $151,797     $ 228,664 (f)(g) $1,391,587(h)
                          ==========  ========  ========     =========        ==========
 FOR THE YEAR ENDED
    DECEMBER 31, 1992
- ------------------------
Accumulated Provision
 for Depreciation of
 Plant and Equipment:
 Electric--
  Production............  $4,552,347  $651,010  $ 88,621     $      (1)(c)    $5,114,735
  Transmission..........     684,200    47,479    13,173          (266)(c)       718,240

  Distribution..........   2,054,748   155,115    62,466           270 (c)     2,149,953
                                                                 2,286 (d)

  General...............     151,132    24,369    11,981            (3)(c)       163,517
                          ----------  --------  --------     ---------        ----------
                          $7,442,427  $877,973  $176,241(e)  $   2,286        $8,146,445
                          ==========  ========  ========     =========        ==========
Accumulated Provision
 for Amortization of
 Nuclear Fuel...........  $1,391,587  $ 14,565  $302,841     $ 243,472 (f)(g) $1,346,783(h)
                          ==========  ========  ========     =========        ==========

See Notes on Page 2 of 2.



31

SCHEDULE VI

(PAGE 2 OF 2)

COMMONWEALTH EDISON COMPANY AND SUBSIDIARY COMPANIES

SCHEDULE VI--ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION OF PROPERTY,
PLANT AND EQUIPMENT--CONCLUDED (a)
--THOUSANDS OF DOLLARS--


        COLUMN A           COLUMN B   COLUMN C  COLUMN D    COLUMN E          COLUMN F
- ------------------------  ---------- ---------- --------    ---------        -----------
                                     ADDITIONS                OTHER
                          BALANCE AT CHARGED TO             CHANGES--
                          BEGINNING  COSTS AND  RETIRE-        ADD           BALANCE AT
     CLASSIFICATION        OF YEAR    EXPENSES   MENTS      (DEDUCT)         END OF YEAR
- ------------------------  ---------- ---------- --------    ---------        -----------
 FOR THE YEAR ENDED
    DECEMBER 31, 1993
- ------------------------
Accumulated Provision
 for Depreciation of
 Plant and Equipment:
 Electric--
  Production............  $5,114,735 $ 668,668  $134,636      $ (334)(b)     $5,647,056
                                                              (1,377)(c)

  Transmission..........     718,240    49,790     3,022         228 (c)        765,236

  Distribution..........   2,149,953   165,781    40,286        (199)(c)      2,278,845
                                                               3,596 (d)

  General...............     163,517    29,147    15,757         (20)(c)        176,887
                          ---------- ---------  --------    --------         ----------
                          $8,146,445 $ 913,386  $193,701(e) $  1,894         $8,868,024
                          ========== =========  ========    ========         ==========
Accumulated Provision
 for Amortization of
 Nuclear Fuel...........  $1,346,783 $  17,944  $200,627    $247,375 (f)(g)  $1,411,475(h)
                          ========== =========  ========    ========         ==========

Notes:

(a) Reference is made to Note 1 of Notes to Financial Statements in the Current Report on Form 8-K/A-1 dated January 28, 1994, incorporated herein by reference, for information relating to the accounting policies for depreciation of plant and equipment, nuclear plant decommissioning and amortization of nuclear fuel.

(b) The year 1991 includes reversal of prior years' depreciation on disallowed plant costs recorded in March and November 1991 discussed on page 30 note
(b). The year 1993 includes net adjustments of prior years' provisions relating to additional disallowed plant costs recorded in October 1989 and May 1990 for Byron Unit 1.

(c) Transfers between reserves for plant and equipment and to and from nonutility property. Also includes a reclassification, in 1991, of nuclear chemical cleaning from accumulated provision for depreciation of plant and equipment for years prior to 1991 of $48,373, to other noncurrent liabilities.

(d) Reimbursements for highway relocations.

(e) Includes removal costs, less salvage, of plant and equipment retired.

(f) Includes discharged nuclear fuel assemblies previously leased of $148,652, $230,454 and $286,977 for the years 1991, 1992 and 1993, respectively.

(g) Includes net additions/(reductions) for accumulated amortization for leased nuclear fuel capitalized of $80,012, $13,018 and $(39,602) for the years 1991, 1992 and 1993, respectively.

(h) Includes accumulated amortization for leased nuclear fuel capitalized of $793,973, $806,991 and $767,389 for the years 1991, 1992 and 1993, respectively.



32

SCHEDULE VII

COMMONWEALTH EDISON COMPANY AND SUBSIDIARY COMPANIES
SCHEDULE VII--GUARANTEES OF SECURITIES OF OTHER ISSUERS
DECEMBER 31, 1993


      COLUMN A                    COLUMN B        COLUMN C           COLUMN D    COLUMN E   COLUMN F    COLUMN G
----------------------------  ----------------- ------------       ------------ ---------- ----------  -----------
                                                                                                        NATURE OF
                                                                                                           ANY
                                                                                                       DEFAULT BY
                                                                                                         ISSUER
                                                                                                           OF
                                                                                                       SECURITIES
                                                                                                       GUARANTEED
                                                                                                           IN
                                                                                                       PRINCIPAL,
                                                                                                        INTEREST,
                                                                      AMOUNT                             SINKING
                                                                     OWNED BY   AMOUNT IN                FUND OR
NAME OF ISSUER OF SECURITIES                                        PERSON OR    TREASURY              REDEMPTION
   GUARANTEED BY PERSON       TITLE OF ISSUE OF TOTAL AMOUNT       PERSONS FOR  OF ISSUER              PROVISIONS,
            FOR                 EACH CLASS OF    GUARANTEED           WHICH         OF                     OR
    WHICH STATEMENT IS           SECURITIES         AND            STATEMENT IS SECURITIES NATURE OF   PAYMENT OF
           FILED                 GUARANTEED     OUTSTANDING           FILED     GUARANTEED GUARANTEE    DIVIDENDS
----------------------------  ----------------- ------------       ------------ ---------- ----------  -----------
   Edison Development         Promissory note   $  1,760,000(b)(c)      --          --      Principal      --
    Company (a)                                                                                and
                                                                                             interest
   Cotter Corporation (d)            (e)            (e)                 --          --         (e)         --
   CommEd Fuel Company,       Commercial paper, $516,144,000(g)         --          --      Principal,     --
    Inc. (f)                   bank borrowings                                               interest
                               and intermediate                                             and other
                               term notes                                                   financing
                                                                                            costs (h)
   Northwind Inc. (i)         Letters of Credit $  2,500,000            --          --      Principal      --
                                                                                               and
                                                                                             interest

Notes:
(a) Edison Development Company is a wholly-owned subsidiary which owns coal land, land rights, and mineral rights to low-sulfur coal, owns certain other real estate investments, and has an interest in uranium ore deposits for the purpose of furnishing Commonwealth Edison Company with a future source of fuel for electric generation.
(b) Represents portion of purchase cost of coal land.
(c) Excludes interest, which is at a rate of prime plus 1%.
(d) Cotter Corporation is a wholly-owned subsidiary which owns uranium mining properties in Colorado and other Western states and a mineral processing plant to furnish a supply of uranium concentrate for Commonwealth Edison Company's nuclear fuel requirements.
(e) Cotter Corporation received from the state of Colorado the renewal and amendment of its existing license to operate its uranium mill and associated tailings impoundment at its Canon City uranium mill by obtaining a $10,500,000 Performance Bond. An insurance company agreed to provide Cotter Corporation with the required bond for a premium of $65,625 per year. In addition, Cotter Corporation obtained Performance Bonds principally for the reclamation of certain Western Slope mines and the Charlie Orebody mine, and other related facilities. An insurance company agreed to provide Cotter Corporation with Performance Bonds in the amount of $3,981,825 for premiums of $25,779 per year. Commonwealth Edison Company guaranteed payment of these premiums and any losses sustained by the insurance company under the bonds.
(f) CommEd Fuel Company, Inc. (CommEd Fuel Company) is a non-affiliated company established to lease nuclear fuel materials to the Company under a nuclear fuel lease agreement. CommEd Fuel Company owns the nuclear fuel materials and finances the purchase of such materials through its sale of commercial paper and intermediate term notes, and bank borrowings.
(g) A maximum of $700,000,000 of obligations may be incurred, consisting of $300,000,000 of commercial paper or bank borrowings and $400,000,000 of intermediate term notes.
(h) The Company has agreed in its nuclear fuel lease agreement with CommEd Fuel Company to make rent payments thereunder in amounts sufficient to cover the principal, interest and other financing costs of CommEd Fuel Company incurred in connection with its purchase and lease of nuclear fuel materials to the Company.
(i) Northwind Inc. is an indirect, wholly-owned subsidiary which has been formed to provide energy-related services to the Company's customers and others.



33

SCHEDULE VIII

COMMONWEALTH EDISON COMPANY AND SUBSIDIARY COMPANIES

SCHEDULE VIII--VALUATION AND QUALIFYING ACCOUNTS
--THOUSANDS OF DOLLARS--


         COLUMN A           COLUMN B      COLUMN C        COLUMN D     COLUMN E
- --------------------------  --------- ------------------ ----------    --------
                                          ADDITIONS
                                      ------------------
                             BALANCE  CHARGED
                               AT     TO COSTS  CHARGED                BALANCE
                            BEGINNING   AND     TO OTHER                AT END
        DESCRIPTION          OF YEAR  EXPENSES  ACCOUNTS DEDUCTIONS    OF YEAR
- --------------------------  --------- --------  -------- ----------    --------
    FOR THE YEAR ENDED
    DECEMBER 31, 1991
- --------------------------
Reserves Deducted From As-
 sets In Consolidated Bal-
 ance Sheet:
 Reserve for nonutility
  property................   $   742  $    20   $    --   $  (762)(b)  $   --
                             =======  =======   ========  =======      =======
 Provision for uncollecti-
  ble accounts (a)........   $12,300  $(4,900)  $    --   $   --       $ 7,400
                             =======  =======   ========  =======      =======
Other Reserves:
 Estimated Liabilities As-
  sociated with
  Remediation Costs and
  Former Manufactured Gas
  Plant Sites.............   $   --   $25,112   $    --   $  (112)(c)  $25,000
                             =======  =======   ========  =======      =======
    FOR THE YEAR ENDED
    DECEMBER 31, 1992
- --------------------------
Reserves Deducted From As-
 sets In Consolidated Bal-
 ance Sheet:
 Reserve for nonutility
  property................   $   --   $   --    $    --   $   --       $   --
                             =======  =======   ========  =======      =======
 Provision for uncollecti-
  ble accounts (a)........   $ 7,400  $ 5,576   $    --   $   --       $12,976
                             =======  =======   ========  =======      =======
Other Reserves:
 Estimated Liabilities As-
  sociated with
  Remediation Costs and
  Former Manufactured Gas
  Plant Sites.............   $25,000  $   --    $    --   $  (478)(c)  $24,522
                             =======  =======   ========  =======      =======
    FOR THE YEAR ENDED
    DECEMBER 31, 1993
- --------------------------
Reserves Deducted From As-
 sets In Consolidated Bal-
 ance Sheet:
 Reserve for nonutility
  property................   $   --   $   --    $    --   $   --       $   --
                             =======  =======   ========  =======      =======
 Provision for uncollecti-
  ble accounts (a)........   $12,976  $(2,066)  $    --   $   --       $10,910
                             =======  =======   ========  =======      =======
Other Reserves:
 Estimated Liabilities As-
  sociated with
  Remediation Costs and
  Former Manufactured Gas
  Plant Sites.............   $24,522  $ 6,010   $    --   $(1,010)(c)  $29,522
                             =======  =======   ========  =======      =======

Notes:

(a) Bad debt losses, net of recoveries, and provisions for uncollectible accounts were charged to operating expense and amounted to $27,541, $33,708 and $28,867 in 1991, 1992 and 1993, respectively.

(b) Transfer to Reserve for Depreciation of Electric Plant in Service.

(c) Expenditures for site investigation and cleanup costs.



34

SCHEDULE IX

COMMONWEALTH EDISON COMPANY AND SUBSIDIARY COMPANIES
SCHEDULE IX--SHORT-TERM BORROWINGS
--THOUSANDS OF DOLLARS--


        COLUMN A          COLUMN B   COLUMN C  COLUMN D    COLUMN E    COLUMN F
- ------------------------ ----------- -------- ----------- ----------- -----------
                                                                       WEIGHTED
                                                MAXIMUM     AVERAGE     AVERAGE
                                     WEIGHTED   AMOUNT      AMOUNT     INTEREST
                                     AVERAGE  OUTSTANDING OUTSTANDING RATE DURING
 CATEGORY OF AGGREGATE   BALANCE AT  INTEREST DURING THE  DURING THE   THE YEAR
 SHORT-TERM BORROWINGS   END OF YEAR   RATE    YEAR (a)    YEAR (b)       (c)
- ------------------------ ----------- -------- ----------- ----------- -----------
   FOR THE YEAR ENDED
   DECEMBER 31, 1991
- ------------------------
Commercial paper (d)....   $  --       -- %     $   --      $   --        -- %
Bank loans (e)..........   $2,000     6.31%     $ 2,000     $ 1,855      8.22%
   FOR THE YEAR ENDED
   DECEMBER 31, 1992
- ------------------------
Commercial paper (d)....   $  --       -- %     $75,000     $15,081      4.01%
Bank loans (e)..........   $5,600     5.83%     $ 5,600     $ 2,416      7.05%
   FOR THE YEAR ENDED
   DECEMBER 31, 1993
- ------------------------
Commercial paper (d)....   $  --       -- %     $   --      $   --        -- %
Bank loans (e)..........   $5,950     5.83%     $ 5,950     $ 5,727      5.83%

Notes:
(a) Maximum amount outstanding at any month end during the year.
(b) Computed by dividing the sum of the daily ending balances by the number of days in the year.
(c) Computed by dividing the interest expense for the year by the average amount outstanding during the year.
(d) Unsecured promissory notes with terms of nine months or less.
(e) Unsecured promissory notes with various banks which mature within twelve months and which can be renegotiated at maturity.



35

SIGNATURES

PURSUANT TO THE REQUIREMENTS OF SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934, THE REGISTRANT HAS DULY CAUSED THIS REPORT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY AUTHORIZED, IN THE CITY OF CHICAGO AND STATE OF ILLINOIS ON THE 28TH DAY OF MARCH 1994.
COMMONWEALTH EDISON COMPANY

     /s/ James J. O'Connor
By_____________________________
    James J. O'Connor, Chairman

  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES EXCHANGE ACT OF 1934,
THIS REPORT HAS BEEN SIGNED BELOW BY THE FOLLOWING PERSONS ON BEHALF
OF THE REGISTRANT AND IN THE CAPACITIES INDICATED ON THE 28TH DAY OF
MARCH 1994.

         SIGNATURE                      TITLE
- ----------------------------    ---------------------
  /s/ James J. O'Connor
- ----------------------------    Chairman and Director
     James J. O'Connor           (principal executive
                                 officer)
  /s/ John C. Bukovski
- ----------------------------    Vice President (principal
      John C. Bukovski          financial officer)

   /s/ Roger F. Kovack
- ----------------------------    Comptroller  (principal
      Roger F. Kovack           accounting officer)

   Jean Allard*                 Director
   James W. Compton*            Director
   Sue L. Gin*                  Director
   Donald P. Jacobs*            Director
   George E. Johnson*           Director
   Harvey Kapnick*              Director
   Byron Lee, Jr.*              Director
   Edward A. Mason*             Director
   Frank A. Olson*              Director
   Samuel K. Skinner*           President and Director
   Lando W. Zech, Jr.*          Director


      /s/ David A. Scholz
*By____________________________
  David A. Scholz, Attorney-in-
               fact

36

EXHIBIT INDEX

The following exhibits are filed herewith or incorporated herein by reference. Documents indicated by an asterisk (*) are incorporated herein by reference to the File No. indicated.

EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
*(3)-1     Restated Articles of Incorporation of the Company effective February 20,
            1985 (File No. 1-1839, Form 10-K for the year ended December 31, 1985,
            Exhibit (3)-1).
*(3)-2     Statement of Resolution Establishing Series, relating to the establishment
            of a new series of preference stock known as the "$9.30 Cumulative Pref-
            erence Stock," dated December 10, 1985 (File No. 1-1839, Form 10-K for
            the year ended December 31, 1992, Exhibit (3)-2).
*(3)-3     Statement of Resolution Establishing Series, relating to the establishment
            of a new series of preference stock known as the "$9.00 Cumulative Pref-
            erence Stock," dated July 25, 1990 (File No. 1-1839, Form 10-K for the
            year ended December 31, 1990, Exhibit (3)-2).
*(3)-4     Statement of Resolution Establishing Series, relating to the establishment
            of a new series of preference stock known as the "$6.875 Cumulative Pref-
            erence Stock," dated May 21, 1993 (File No. 1-1839, Form 8-K dated May
            21, 1993, Exhibit (3)-1).
*(3)-5     By-Laws of the Company, effective September 2, 1988 (File No. 1-1839, Form
            10-Q for the quarter ended September 30, 1988, Exhibit (3)).
*(3)-6     Amendment to By-Laws of the Company, effective July 1, 1989 (File No.
            1-1839, Form 10-Q for the quarter ended June 30, 1989, Exhibit (3)).
*(3)-7     Amendment to By-Laws of the Company, effective February 1, 1991 (File No.
            1-1839, Form 10-K for the year ended December 31, 1990, Exhibit (3)-4).
*(3)-8     Amendment to By-Laws of the Company, effective September 10, 1992 (File
            No. 1-1839, Form 10-K for the year ended December 31, 1992, Exhibit (3)-
            6).
*(4)-1     Mortgage of the Company to Illinois Merchants Trust Company, Trustee (Con-
            tinental Illinois National Bank and Trust Company of Chicago, successor
            Trustee), dated July 1, 1923, Supplemental Indenture thereto dated August
            1, 1944, and amendments and supplements thereto dated, respectively, Au-
            gust 1, 1946, April 1, 1953, April 1, 1966, November 1, 1966, December 1,
            1966, March 31, 1967, April 1, 1967, February 1, 1968, July 1, 1968, Oc-
            tober 1, 1968, February 28, 1969, May 29, 1970, January 1, 1971, June 1,
            1971, May 31, 1972, June 1, 1973, June 15, 1973, October 15, 1973, May
            31, 1974, July 1, 1974, June 13, 1975, May 28, 1976, January 15, 1977,
            June 1, 1977 and June 3, 1977 (File No. 2-60201, Form S-7, Exhibit 2-1).
*(4)-2     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, December 1, 1977, May 17, 1978, August 31, 1978, June 18, 1979, June
            20, 1980, April 16, 1981, April 30, 1982, April 15, 1983, April 13, 1984,
            March 1, 1985 and April 15, 1985 (File No. 2-99665, Form S-3, Exhibit
            (4)-3).
*(4)-3     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, April 15, 1986 and May 1, 1986 (File No. 33-6879, Form S-3, Exhibit
            (4)-9).
*(4)-4     Supplemental Indenture to Mortgage dated July 1, 1923 dated January 12,
            1987 (File No. 33-13193, Form S-3, Exhibit (4)-6).
*(4)-5     Supplemental Indenture to Mortgage dated July 1, 1923 dated June 30, 1989
            (File No. 33-32929, Form S-3, Exhibit (4)-11).


EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
*(4)-6     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, February 15, 1990 and June 15, 1990 (File No. 33-38232, Form S-3, Ex-
            hibits (4)-11 and (4)-12).
*(4)-7     Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, June 1, 1991, October 1, 1991 and October 15, 1991 (File No. 33-
            44018, Form S-3, Exhibits (4)-12, (4)-13 and (4)-14).
*(4)-8     Supplemental Indenture to Mortgage dated July 1, 1923 dated February 1,
            1992 (File No. 1-1839, Form 10-K for the year ended December 31, 1991,
            Exhibit (4)-18).
*(4)-9     Supplemental Indenture to Mortgage dated July 1, 1923 dated May 15, 1992
            (File No. 33-48542, Form S-3, Exhibit (4)-14).
*(4)-10    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, July 15, 1992, September 15, 1992 and October 1, 1992 (File No. 33-
            53766, Form S-3, Exhibits (4)-13, (4)-14 and (4)-15).
*(4)-11    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, February 1, 1993 and March 1, 1993 (File No. 1-1839, Form 10-K for
            the year ended December 31, 1992, Exhibits (4)-14 and (4)-15).
*(4)-12    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, April 1, 1993 and April 15, 1993 (File No. 33-64028, Form S-3, Exhib-
            its (4)-12 and (4)-13).
*(4)-13    Supplemental Indentures to Mortgage dated July 1, 1923 dated, respective-
            ly, June 15, 1993 and July 1, 1993 (File No. 1-1839, Form 8-K dated May
            21, 1993, Exhibits (4)-1 and (4)-2).
*(4)-14    Supplemental Indenture to Mortgage dated July 1, 1923 dated July 15, 1993
            (File No. 1-1839, Form 10-Q for the quarter ended June 30, 1993, Exhibit
            (4)-1).
 (4)-15    Supplemental Indenture to Mortgage dated July 1, 1923 dated January 15,
            1994.
*(4)-16    Indentures of the Company to The First National Bank of Chicago, Trustee
            (Harris Trust and Savings Bank, successor Trustee), dated April 1, 1949,
            October 1, 1949, October 1, 1950, October 1, 1954, January 1, 1958, Janu-
            ary 1, 1959 and December 1, 1961 (File No. 1-1839, Form 10-K for the year
            ended December 31, 1982, Exhibit (4)-20).
*(4)-17    Indenture of the Company dated February 15, 1973 to The First National
            Bank of Chicago, Trustee (LaSalle National Bank, successor Trustee), and
            Supplemental Indenture thereto dated July 13, 1973 (File No. 2-66100,
            Form S-16, Exhibit (b)-2).
*(4)-18    Indenture dated as of September 1, 1987 between the Company and Citibank,
            N.A., Trustee relating to Notes (File No. 33-20619, Form S-3, Exhibit
            (4)-13).
*(4)-19    Supplemental Indenture to Indenture dated September 1, 1987 dated Septem-
            ber 15, 1987 (File No. 33-20619, Form S-3, Exhibit (4)-14).
*(4)-20    Supplemental Indenture to Indenture dated September 1, 1987 dated May 18,
            1988 (File No. 33-23036, Form S-3, Exhibit (4)-14).
*(4)-21    Supplemental Indenture to Indenture dated September 1, 1987 dated July 14,
            1989 (File No. 33-32929, Form S-3, Exhibit (4)-16).
*(4)-22    Supplemental Indenture to Indenture dated September 1, 1987 dated April 1,
            1991 (File No. 33-44018, Form S-3, Exhibit (4)-21).

2

EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
*(4)-23    Supplemental Indenture to Indenture dated September 1, 1987 dated April
            15, 1992 (File No. 33-48542, Form S-3, Exhibit (4)-22).
*(4)-24    Supplemental Indenture to Indenture dated September 1, 1987 dated July 15,
            1992 (File No. 33-53766, Form S-3, Exhibit (4)-24).
*(4)-25    Supplemental Indenture to Indenture dated September 1, 1987 dated October
            15, 1993 (File No. 1-1839, Form 10-Q for the quarter ended September 30,
            1993, Exhibit (4)-1).
*(4)-26    Credit Agreement dated as of October 1, 1991, among Commonwealth Edison
            Company, as borrower, the Banks named therein and the other Lenders from
            time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form
            10-K for the year ended December 31, 1991, Exhibit (4)-27).
*(4)-27    Credit Agreement dated as of October 1, 1991, among Commonwealth Edison
            Company, as borrower, the Banks named therein and the other Lenders from
            time to time parties thereto, and Citibank, N.A. (File No. 1-1839, Form
            10-K for the year ended December 31, 1991, Exhibit (4)-28).
 (4)-28    Letter Agreement dated as of October 4, 1993, among Commonwealth Edison
            Company and certain of the Banks party to the Credit Agreement dated as
            of October 1, 1991.
*(4)-29    Term Loan Agreement dated as of January 7, 1992, between Commonwealth Edi-
            son Company, as borrower, and The First National Bank of Chicago, indi-
            vidually and as agent (File No. 1-1839, Form 10-K for the year ended De-
            cember 31, 1992, Exhibit (4)-28).
*(4)-30    Term Loan Agreement dated as of January 15, 1992, between Commonwealth Ed-
            ison Company, as borrower, and Westpac Banking Corporation, Chicago
            Branch, individually and as agent (File No. 1-1839, Form 10-K for the
            year ended December 31, 1992, Exhibit (4)-29).
*(4)-31    Term Loan Agreement dated as of January 16, 1992, between Commonwealth Ed-
            ison Company, as borrower, and The Bank of New York, individually and as
            agent (File No. 1-1839, Form 10-K for the year ended December 31, 1992,
            Exhibit (4)-29).
 (10)-1    Nuclear Fuel Lease Agreement dated as of November 23, 1993, between CommEd
            Fuel Company, Inc., as Lessor, and Commonwealth Edison Company, as Les-
            see.
*(10)-2    1993 Long-Term Incentive Plan (File No. 1-1839, Proxy Statement dated
            March 26, 1993, Exhibit A).
 (10)-3    1994 Long-Term Performance Unit Award for Executive and Group Level Em-
            ployes Payable in 1995 under the 1993 Long-Term Incentive Plan.
 (10)-4    1994 Long-Term Performance Unit Award for Executive and Group Level Em-
            ployes Payable in 1996 under the 1993 Long-Term Incentive Plan.
 (10)-5    1994 Long-Term Performance Unit Award for Executive and Group Level Em-
            ployes Payable in 1997 under the 1993 Long-Term Incentive Plan.
 (10)-6    1994 Variable Compensation Award for Management Employes under the 1993
            Long-Term Incentive Plan.

3

EXHIBIT
NUMBER                              DESCRIPTION OF DOCUMENT
-------    --------------------------------------------------------------------------
*(10)-7    Deferred Compensation Plan (included in Exhibit (3)-1 above).
*(10)-8    Management Incentive Compensation Plan, effective January 1, 1989 (File
            No. 1-1839, Form 10-K for the year ended December 31, 1988, Exhibit (10)-4).
*(10)-9    Amendments to Management Incentive Compensation Plan, dated December 14,
            1989 and March 21, 1990 (File No. 1-1839, Form 10-K for the year ended
            December 31, 1989, Exhibit (10)-5).
*(10)-10   Amendment to Management Incentive Compensation Plan, dated March 21, 1991
            (File No. 1-1839, Form 10-K for the year ended December 31, 1991, Exhibit
            (10)-6).
*(10)-11   Retirement Plan for Directors, effective January 1, 1987 (File No. 1-1839,
            Form 10-K for the year ended December 31, 1988, Exhibit (10)-5).
*(10)-12   Executive Group Life Insurance Plan (File No. 1-1839, Form 10-K for the
            year ended December 31, 1980, Exhibit (10)-3).
*(10)-13   Amendment to the Executive Group Life Insurance Plan (File No. 1-1839,
            Form 10-K for the year ended December 31, 1981, Exhibit (10)-4).
*(10)-14   Amendment to the Executive Group Life Insurance Plan dated December 12,
            1986 (File No. 1-1839, Form 10-K for the year ended December 31, 1986,
            Exhibit (10)-6).
*(10)-15   Amendment of Executive Group Life Insurance Plan to implement program of
            "split dollar life insurance" dated December 13, 1990 (File No. 1-1839,
            Form 10-K for the year ended December 31, 1990, Exhibit (10)-10).
*(10)-16   Commonwealth Edison Company Supplemental Management Retirement Plan (File
            No. 1-1839, Form 10-K for the year ended December 31, 1985, Exhibit
            (10)-6).
*(10)-17   Amendment of Executive Group Life Insurance Plan to stabilize the death
            benefit applicable to participants dated July 22, 1992 (File No. 1-1839,
            Form 10-K for the year ended December 31, 1992, Exhibit (10)-13).
*(10)-18   Letter Agreement dated December 16, 1992 between Commonwealth Edison Com-
            pany and Samuel K. Skinner (File No. 1-1839, Form 10-K for the year ended
            December 31, 1992, Exhibit (10)-14).
 (12)      Statement re computation of ratios of earnings to fixed charges and ratios
            of earnings to fixed charges and preferred and preference stock dividend
            requirements.
 (21)      Subsidiaries of Commonwealth Edison Company.
 (23)      Consent of experts.
 (24)      Powers of attorney of Directors whose names are signed to this Form 10-K
            pursuant to such powers.
 (99)      Commonwealth Edison Company's Current Report on Form 8-K/A-1 dated January
            28, 1994.

4

Exhibit (4)-15 Commonwealth Edison Company Form 10-K File No. 1-1839


SUPPLEMENTAL INDENTURE


Dated January 15, 1994


COMMONWEALTH EDISON COMPANY

TO

CONTINENTAL BANK, NATIONAL ASSOCIATION

AND

M. J. KRUGER

Trustees under Mortgage Dated July 1, 1923, and Certain Indentures Supplemental Thereto


Providing for Issuance of

FIRST MORTGAGE 5.30% BONDS, POLLUTION CONTROL SERIES 1994A,
FIRST MORTGAGE 5.70% BONDS, POLLUTION CONTROL SERIES 1994B
AND
FIRST MORTGAGE 5.85% BONDS, POLLUTION CONTROL SERIES 1994C


THIS INSTRUMENT PREPARED BY R. R. MIGELY, P.O. BOX 767, CHICAGO, IL 60690, ON BEHALF OF COMMONWEALTH EDISON COMPANY


THIS SUPPLEMENTAL INDENTURE, dated January 15, 1994, between COMMONWEALTH EDISON COMPANY, a corporation organized and existing under the laws of the State of Illinois (hereinafter called the "Company"), party of the first part, and CONTINENTAL BANK, NATIONAL ASSOCIATION, a national banking association organized and existing under the laws of the United States of America, and M. J. KRUGER, of Chicago, Illinois, as Trustee and Co-Trustee, respectively, under the Mortgage of the Company dated July 1, 1923, as amended and supplemented by Supplemental Indentures dated, respectively, August 1, 1944, August 1, 1946, April 1, 1953, April 1, 1966, November 1, 1966, December 1, 1966, March 31, 1967, April 1, 1967, February 1, 1968, July 1, 1968, October 1, 1968, February 28, 1969, May 29, 1970, January 1, 1971, June 1, 1971, July 27, 1971, May 31, 1972, June 1, 1973, June 15, 1973, October 15, 1973, May 31, 1974, July 1, 1974, March 1, 1975, June 13, 1975, May 28, 1976, January 15, 1977, June 1, 1977, June 3, 1977, December 1, 1977, May 17, 1978, August 31, 1978, October 15, 1978, June 18, 1979, June 20, 1980, April 16, 1981, April 30, 1982, April 15, 1983, April 13, 1984, March 1, 1985, April 15, 1985, April 15, 1986, May 1, 1986, August 15, 1986, January 12, 1987, June 30, 1989, February 15, 1990, June 15, 1990, June 1, 1991, October 1, 1991, October 15, 1991, February 1, 1992, May 15, 1992, July 15, 1992, September 15, 1992, October 1, 1992, February 1, 1993, March 1, 1993, April 1, 1993, April 15, 1993, June 15, 1993, July 1, 1993 and July 15, 1993, parties of the second part (said Trustee being hereinafter called the "Trustee", the Trustee and said Co- Trustee being hereinafter together called the "Trustees", and said Mortgage dated July 1, 1923, as amended and supplemented by said Supplemental Indenture dated August 1, 1944 and subsequent supplemental indentures, being hereinafter called the "Mortgage"),

WITNESSETH:

WHEREAS, the Mortgage provides for the issuance from time to time thereunder, in series, of bonds of the Company for the purposes and subject to the limitations therein specified; and

WHEREAS, the Company desires, by this Supplemental Indenture, to create additional series of bonds to be issuable under the Mortgage, such bonds to be designated "First Mortgage 5.30% Bonds, Pollution Control Series 1994A" (hereinafter called the "bonds of Series 1994A"), "First Mortgage 5.70% Bonds, Pollution Control Series 1994B" (hereinafter called the "bonds of Series 1994B") and "First Mortgage 5.85% Bonds, Pollution Control Series 1994C" (hereinafter called the "bonds of Series 1994C") and the terms and provisions to be contained in the bonds of Series 1994A, the bonds of Series 1994B and the bonds of Series 1994C or to be otherwise applicable thereto to be as set forth in this Supplemental Indenture; and

WHEREAS, the bonds of Series 1994A and the Trustee's certificate to be endorsed thereon, the bonds of Series 1994B and the Trustee's certificate to be endorsed thereon and the bonds of Series 1994C and the Trustee's certificate to be endorsed thereon shall be substantially in the form of the General Form of Registered Bond Without Coupons and the


form of the General Form of Trustee's Certificate set forth in Section 3.05 of the Supplemental Indenture dated August 1, 1944, to the Mortgage with such appropriate insertions, omissions and variations in order to express the designation, date, maturity date, annual interest rate, record dates for, and dates of, payment of interest, denominations, terms of redemption and redemption prices, and other terms and characteristics authorized or permitted by the Mortgage or not inconsistent therewith; and

WHEREAS, the Illinois Development Finance Authority (the "Authority") proposes to issue $66,000,000 aggregate principal amount of its Pollution Control Revenue Refunding Bonds, Series 1994 (Commonwealth Edison Company Project) (collectively, the "Revenue Bonds"), pursuant to an Indenture of Trust dated as of January 15, 1994 (the "Indenture"), under which The First National Bank of Chicago is trustee (the "Indenture Trustee"), and to use the proceeds received therefrom to purchase the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C from the Company, pursuant to a Sale Agreement dated as of January 15, 1994 (the "Sale Agreement"), between the Company and the Authority, to assist the Company in refunding certain outstanding obligations issued to finance a portion of the cost of certain wastewater treatment, air and water pollution control and sewage and solid waste disposal facilities of the Company; and the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C are to be pledged and delivered by the Authority to the Indenture Trustee to secure the repayment of the Revenue Bonds; and

WHEREAS, the Company is legally empowered and has been duly authorized by the necessary corporate action and by orders of the Illinois Commerce Commission to make, execute and deliver this Supplemental Indenture, and to create, as additional series of bonds of the Company, the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C, and all acts and things whatsoever necessary to make this Supplemental Indenture, when executed and delivered by the Company and the Trustees, a valid, binding and legal instrument, and to make the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C, when authenticated by the Trustee and issued as in the Mortgage and in this Supplemental Indenture provided, the valid, binding and legal obligations of the Company, entitled in all respects to the security of the Mortgage, as amended and supplemented, have been done and performed;

NOW, THEREFORE, in consideration of the premises and of the sum of one dollar duly paid by the Trustees to the Company, and for other good and valuable considerations, the receipt of which is hereby acknowledged, the parties hereto do hereby agree as follows:

SECTION 1. DESIGNATION AND ISSUANCE OF BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C. The bonds of Series 1994A shall, as hereinbefore recited, be designated as the Company's "First Mortgage 5.30% Bonds, Pollution Control Series 1994A." The bonds of Series 1994B shall, as hereinbefore recited, be designated as the Company's "First Mortgage 5.70% Bonds, Pollution Control Series 1994B." The bonds of Series 1994C shall, as hereinbefore recited, be designated as the Company's "First Mortgage 5.85% Bonds, Pollution Control Series 1994C." Subject to the provisions of the Mortgage, the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be issuable without limitation as to the aggregate principal amount thereof.

-2-

SECTION 2. FORM, DATE, MATURITY DATE, INTEREST RATE AND INTEREST PAYMENT DATES OF BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C. The definitive bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be in engraved, lithographed or printed form and shall be registered bonds without coupons; and such bonds and the Trustee's certificate to be endorsed thereon shall be substantially in the form hereinbefore recited. The bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be dated as provided in Section 3.01 of the Mortgage, as amended by Supplemental Indenture dated April 1, 1967. The bonds of Series 1994A shall mature on January 15, 2004, and shall bear interest at the rate of 5.30% per annum until the principal thereof shall be paid. The bonds of Series 1994B shall mature on January 15, 2009, and shall bear interest at the rate of 5.70% per annum until the principal thereof shall be paid. The bonds of Series 1994C shall mature on January 15, 2014, and shall bear interest at the rate of 5.85% per annum until the principal thereof shall be paid. Such interest shall be payable semiannually on January 15 and July 15 in each year, commencing July 15, 1994. January 1 and July 1 in each year are hereby established as record dates for the payment of interest payable on the next succeeding interest payment dates, respectively. The interest on each bond of Series 1994A, each bond of Series 1994B and each bond of Series 1994C so payable on any interest payment date shall, subject to the exceptions provided in Section 3.01 of the Mortgage, as amended by said Supplemental Indenture dated April 1, 1967, be paid to the person in whose name such bond is registered at the close of business on January 1 and July 1, as the case may be, next preceding such interest payment date.

SECTION 3. EXECUTION OF BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C. The bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be executed on behalf of the Company by its President or one of its Vice Presidents, manually or by facsimile signature, and shall have its corporate seal affixed thereto or a facsimile of such seal imprinted thereon, attested by its Secretary or one of its Assistant Secretaries, manually or by facsimile signature, all as may be provided by resolution of the Board of Directors of the Company. In case any officer or officers whose signature or signatures, manual or facsimile, shall appear upon any bond of Series 1994A, any bond of Series 1994B or any bond of Series 1994C shall cease to be such officer or officers before such bond shall have been actually authenticated and delivered, such bond nevertheless may be issued, authenticated and delivered with the same force and effect as though the person or persons whose signature or signatures, manual or facsimile, appear thereon had not ceased to be such officer or officers of the Company.

SECTION 4. MEDIUM AND PLACES OF PAYMENT OF PRINCIPAL OF AND INTEREST ON BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C; TRANSFERABILITY AND EXCHANGEABILITY. Both the principal of and interest on the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be payable in any coin or currency of the United States of America which at the time of payment is legal tender for the payment of public and private debts, and both such principal and interest shall be payable at the office or agency of the Company in the City of Chicago, State of Illinois, or, at the option of the registered owner, at the office or agency of the Company in the Borough of Manhattan, The City of New York, State of New York. There shall be credited against amounts due from time to time on the

-3-

bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C any amounts then on deposit in the Bond Fund created by Section 402 of the Indenture. Bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall not be transferable except to the Authority, the Indenture Trustee or any successor trustee under the Indenture. Bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be exchangeable for other bonds of authorized denominations, in the manner provided in Sections 3.09 and 3.10 of the Mortgage, at said office or agency. No charge shall be made by the Company to the registered owner of any bond of Series 1994A, any bond of Series 1994B or any bond of Series 1994C for the transfer of such bond or for the exchange thereof for bonds of other authorized denominations, except, in the case of transfer, a charge sufficient to reimburse the Company for any stamp or other tax or governmental charge required to be paid by the Company or the Trustee.

SECTION 5. DENOMINATIONS AND NUMBERING OF BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C. The bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be issued in the denomination of $5,000 and in such multiples of $5,000 as shall from time to time hereafter be determined and authorized by the Board of Directors of the Company or by any officer or officers of the Company authorized to make such determination, the authorization of the denomination of any bond of Series 1994A, any bond of Series 1994B or any bond of Series 1994C to be conclusively evidenced by the execution thereof on behalf of the Company. Bonds of Series 1994A shall be numbered R-1 and consecutively upwards, bonds of Series 1994B shall be numbered R-1 and consecutively upwards and bonds of Series 1994C shall be numbered R-1 and consecutively upwards.

SECTION 6. TEMPORARY BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C. Until definitive bonds of Series 1994A, bonds of Series 1994B or bonds of Series 1994C are ready for delivery, there may be authenticated and issued in lieu of any thereof and subject to all of the provisions, limitations and conditions set forth in Section 3.11 of the Mortgage, temporary registered bonds without coupons of bonds of Series 1994A, bonds of Series 1994B or bonds of Series 1994C.

SECTION 7. EXTRAORDINARY OPTIONAL REDEMPTION OF BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C. Upon the notice and in the manner provided in Section 301 of the Indenture, the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C may be redeemed prior to maturity at the option of the Company, in whole but not in part, at any time at 100% of the principal amount thereof plus accrued interest to the redemption date, within 180 days after the occurrence of any change in the Constitution of the State of Illinois or the Constitution of the United States of America or any legislative or administrative action (whether local, state or federal) or any final decree, judgment or order of any court or administrative body (whether local, state or federal) which results in the Sale Agreement, the bonds of Series 1994A, bonds of Series 1994B or bonds of Series 1994C becoming void or unenforceable or impossible of performance in accordance with the intent and purpose of the parties as expressed in the Sale Agreement, the bonds of Series 1994A, bonds of Series 1994B or bonds of Series 1994C, as the case may be.

-4-

SECTION 8. EXTRAORDINARY MANDATORY REDEMPTION OF BONDS OF SERIES 1994A, BONDS OF SERIES 1994B AND BONDS OF SERIES 1994C. Upon the notice and in the manner provided in Section 301 of the Indenture, the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be redeemed by the Company in whole, or as hereinafter provided in part, at 100% of the principal amount thereof plus accrued interest to the redemption date, in the event of a final determination by the Internal Revenue Service or by a court of competent jurisdiction that, as a result of a failure by the Company to observe any covenant, agreement, representation or warranty in the Sale Agreement or the Tax Exemption Certificate and Agreement dated January 25, 1994, between the Company and the Authority, the interest payable on the Revenue Bonds is includable in the gross income for federal income tax purposes of the owners thereof (other than an owner who is a "substantial user" of the Project (as defined in the Indenture) or a "related person" within the meaning of Section 103(b)(13) of the Internal Revenue Code of 1954, as amended (the "Code")). Such a determination will not result from the inclusion of interest on any Revenue Bond in the computation of minimum or indirect taxes. Any such determination shall not be considered final for this purpose unless the Company has been given written notice of any proceedings which might result in such determination and has been afforded the opportunity to participate in any such proceedings (as a party or otherwise) to the extent the Company deems sufficient, either directly or in the name of any owner of a Revenue Bond, and until the conclusion of any appellate review, if sought. Any such redemption shall occur within 180 days from the date of such final determination. The bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be redeemed in whole upon any such final determination unless, in the opinion of Bond Counsel (as defined in the Indenture), the redemption of a portion of the outstanding Revenue Bonds would have the result that interest payable on the Revenue Bonds remaining outstanding after such redemption would not be includable in the gross income for federal income tax purposes of any owner of such Revenue Bonds (other than an owner who is a "substantial user" of the Project or a "related person" within the meaning of Section 103(b)(13) of the Code), in which event bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be redeemed in an amount equal to the amount of Revenue Bonds required to be so redeemed. If any holder of Revenue Bonds refuses to permit the Company to participate in any such proceedings (as a party or otherwise) to the extent the Company deems sufficient or if any holder of Revenue Bonds fails to notify the Company of the pendency of any such proceedings, the bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall not, in the event of an adverse final determination, be subject to the mandatory redemption provisions of this Section.

SECTION 9. DEFAULT MANDATORY REDEMPTION. The bonds of Series 1994A, bonds of Series 1994B and bonds of Series 1994C shall be redeemed promptly, without notice, by the Company in whole at 100% of the principal amount thereof plus accrued interest to the date of redemption following receipt by the Trustee of written notice from the Indenture Trustee stating that the principal of the Revenue Bonds has been declared to be immediately due and payable as a result of an event of default under the Indenture.

-5-

SECTION 10. MISCELLANEOUS. The terms and conditions of this Supplemental Indenture shall be deemed to be a part of the terms and conditions of the Mortgage for any and all purposes. The Mortgage, as supplemented by said indentures supplemental thereto dated subsequent to August 1, 1944 and referred to in the first paragraph of this Supplemental Indenture, and as further supplemented by this Supplemental Indenture, is in all respects hereby ratified and confirmed.

This Supplemental Indenture shall bind and, subject to the provisions of Article XIV of the Mortgage, inure to the benefit of the respective successors and assigns of the parties hereto.

Although this Supplemental Indenture is dated January 15, 1994, it shall be effective only from and after the actual time of its execution and delivery by the Company and the Trustees on the date indicated by their respective acknowledgments hereto annexed.

This Supplemental Indenture may be simultaneously executed in any number of counterparts, and all such counterparts executed and delivered, each as an original, shall constitute but one and the same instrument.

-6-

IN WITNESS WHEREOF, Commonwealth Edison Company has caused this Supplemental Indenture to be executed in its name by one of its Vice Presidents, and its seal to be hereunto affixed and attested by its Secretary, and Continental Bank, National Association, as Trustee under the Mortgage, has caused this Supplemental Indenture to be executed in its name by one of its Vice Presidents, and its seal to be hereunto affixed and attested by one of its Trust Officers, and M. J. Kruger, as Co-Trustee under the Mortgage, has hereunto affixed his signature and seal, all as of the day and year first above written.

COMMONWEALTH EDISON COMPANY

By       /s/ J. C. Bukovski
         J. C. Bukovski
          Vice President

(SEAL)

ATTEST:

/s/ David A. Scholz
David A. Scholz
   Secretary

CONTINENTAL BANK, NATIONAL
ASSOCIATION

By     /s/ Joanne M. Murphy
       Joanne M. Murphy
        Vice President

(SEAL)

ATTEST:

/s/ K L Clark
K. L. Clark
  Trust Officer

                                                /s/ M J Kruger
                                                M. J. KRUGER

                                                           (SEAL)

-7-

STATE OF ILLINOIS  )
                   ) SS.
COUNTY OF COOK     )

I, JOHN R. DIETZEL, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that J. C. BUKOVSKI, a Vice President of Commonwealth Edison Company, an Illinois corporation, one of the parties described in and which executed the foregoing instrument, and DAVID A. SCHOLZ, the Secretary of said corporation, who are both personally known to me to be the same persons whose names are subscribed to the foregoing instrument as such Vice President and Secretary, respectively, and who are both personally known to me to be a Vice President and the Secretary, respectively, of said corporation, appeared before me this day in person and severally acknowledged that they signed, sealed, executed and delivered said instrument as their free and voluntary act as such Vice President and Secretary, respectively, of said corporation, and as the free and voluntary act of said corporation, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 17th day of January, A.D. 1994.

/s/ John R. Dietzel
John R. Dietzel
Notary Public

(SEAL)

My Commission expires March 10, 1997

-8-

STATE OF ILLINOIS  )
                   ) SS.
COUNTY OF COOK     )


     I,  S. RHODEN,   a Notary Public in and for said County, in the State

aforesaid, DO HEREBY CERTIFY that JOANNE M. MURPHY, a Vice President of Continental Bank, National Association, a national banking association, one of the parties described in and which executed the foregoing instrument, and K. L. CLARK, a Trust Officer of said banking association, who are both personally known to me to be the same persons whose names are subscribed to the foregoing instrument as such Vice President and Trust Officer, respectively, and who are both personally known to me to be a Vice President and a Trust Officer, respectively, of said banking association, appeared before me this day in person and severally acknowledged that they signed, sealed, executed and delivered said instrument as their free and voluntary act as such Vice President and Trust Officer, respectively, of said banking association, and as the free and voluntary act of said banking association, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 17th day of January, A.D. 1994.

/s/ S. Rhoden
S. Rhoden
Notary Public

(SEAL)

My Commission expires June 28, 1997.

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STATE OF ILLINOIS  )
                   ) SS.
COUNTY OF COOK     )

I, S. RHODEN, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that M. J. KRUGER, one of the parties described in and which executed the foregoing instrument, who is personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person and acknowledged that he signed, sealed, executed and delivered said instrument as his free and voluntary act for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 17th day of January, A.D. 1994.

/s/ S. Rhoden
S. Rhoden
Notary Public

(SEAL)

My Commission expires June 28, 1997.

COMMONWEALTH EDISON COMPANY
REAL ESTATE DEPT.
P. O. BOX 767
CHICAGO, ILLINOIS 60690

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Exhibit (4)-28 Commonwealth Edison Company Form 10-K File No. 1-1839

(Commonwealth Edison Logo)
Commonwealth Edison
One First National Plaza, Chicago, Illinois Address Reply to: Post Office Box 767 Chicago, Illinois 60690-0767

As of October 4, 1993

To each of the Banks party to the
Credit Agreement referred to below

Ladies and Gentlemen:

We refer to the $200 million Credit Agreement dated as of October 1, 1991, as amended (the "Credit Agreement"), among the undersigned, the Banks (including you) named therein and the other Lenders from time to time parties thereto, and Citibank, N.A., as Agent. Capitalized terms used herein without definition shall have the meanings ascribed thereto in the Credit Agreement.

We are writing to request that you extend the expiration date of your Commitment under the Credit Agreement from October 4, 1993 until October 3, 1994. If you agree to this extension, all terms and conditions of the Credit Agreement would continue in effect during the period of such extension, except for the following amendments: (a) the date "October 3, 1994," would be inserted in lieu of the date "October 4, 1993," in clause (i) of the definition of "Termination Date" in Section 1.01 of the Credit Agreement, (b) the terms "Banks" and "Lenders" shall mean each of the banks or other lending institutions agreeing to extend the expiration date of its Commitment under the Credit Agreement or, if not presently a party to the Credit Agreement, agreeing to become a party thereto on or after October 4, 1993, and (c) no additional fees would be payable under Section 2.04(b) of the Credit Agreement in respect of such extension. Such extension would become effective as of October 4, 1993.

On and after the effective date of the extension requested herein and the related amendments referred to above, each reference in the Credit Agreement to "this Agreement", "hereunder", "hereof", or words of like import referring to the Credit Agreement, and each reference in the other Loan Documents to "the Credit Agreement", "thereunder", "thereof", or words of like import


referring to the Credit Agreement, shall mean and be a reference to the Credit Agreement as amended by this letter.

If you agree to extend the expiration of your Commitment and to the related amendments provided above, please evidence such agreement by executing and returning at least two counterparts of this letter to the Agent at its address at 399 Park Avenue, New York, New York 10043, Attention of Joseph W. Casson, no later than September 7, 1993.

On October 4, 1993, (i) the Commitment of each Bank which fails to return executed counterparts of this letter as provided above shall automatically terminate as presently provided in the Credit Agreement, and (ii) all outstanding Advances of such Bank, together with all accrued interest thereon and other amounts payable under the Credit Agreement with respect thereto, shall become due and payable.

Very truly yours,

COMMONWEALTH EDISON COMPANY

By: /s/ Dennis F. O'Brien
    ------------------------
    Dennis F. O'Brien
    Treasurer

Agreed as of the date
 first above written:

           *
- ------------------------------
(Name of Bank)

By:        *
   ---------------------------

Title:

* Executed by Banks holding Commitments aggregating $175 million.

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Exhibit (10)-1 Commonwealth Edison Company Form 10-K File No. 1-1839

NUCLEAR FUEL LEASE AGREEMENT
BETWEEN
COMMED FUEL COMPANY, INC.
AND
COMMONWEALTH EDISON COMPANY

DATED AS OF NOVEMBER 23, 1993

THIS NUCLEAR FUEL LEASE AGREEMENT HAS BEEN MANUALLY EXECUTED IN MULTIPLE COUNTERPARTS, NUMBERED CONSECUTIVELY FROM 1 UPWARDS. THE RIGHTS OF THE LESSOR UNDER THIS FUEL LEASE AGREEMENT HAVE BEEN ASSIGNED TO, AND ARE SUBJECT TO A SECURITY INTEREST IN FAVOR OF, MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AS INDENTURE TRUSTEE, FOR THE RATABLE BENEFIT OF THE SECURED PARTIES NAMED IN THE TRUST INDENTURE DATED AS OF NOVEMBER 23, 1993, BETWEEN THE LESSOR AND MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AS INDENTURE TRUSTEE THEREUNDER. TO THE EXTENT, IF ANY, THAT SUCH FUEL LEASE AGREEMENT CONSTITUTES CHATTEL PAPER (AS SUCH TERM IS DEFINED IN THE UNIFORM COMMERCIAL CODE AS IN EFFECT IN ANY APPLICABLE JURISDICTION), NO SECURITY INTEREST MAY BE CREATED IN, OR ASSIGNMENT EFFECTED OF, SUCH FUEL LEASE AGREEMENT THROUGH THE TRANSFER OR POSSESSION OF ANY COUNTERPART OF SUCH FUEL LEASE AGREEMENT OTHER THAN THE ORIGINAL EXECUTED COUNTERPART, WHICH SHALL BE IDENTIFIED AS THE COUNTERPART CONTAINING COUNTERPART NO. 1 ON THE COVER, WHICH COUNTERPART NO. 1 CONTAINS A RECEIPT EXECUTED BY THE INDENTURE TRUSTEE ON THE SIGNATURE PAGE THEREOF.

Counterpart No.____


TABLE OF CONTENTS

SECTION                                                        PAGE
- -------                                                        ----
 1.  Defined Terms............................................  1

 2.  Representations and Warranties of Lessee.................  2

 3.  Lease of Nuclear Fuel; Term..............................  5

 4.  Title to Remain in the Lessor; Fuel Management;
     Nuclear Fuel to be Personal Property and Used for
     Generation; Location.....................................  5

 5.  Basic Rent and Additional Rent; Procedure for Payment....  6

 6.  Payment of Costs by the Lessor...........................  9

 7.  Taxes.................................................... 11

 8.  Condition and Use of Nuclear Fuel; Quiet Enjoyment....... 11

 9.  Maintenance of the Nuclear Fuel.......................... 13

10.  Removals, Purchase of Nuclear Fuel, Transfer to the
     Lessee, Commingling, Substitution........................ 13

11.  Indemnification by the Lessee............................ 17

12.  Right to Inspect Nuclear Fuel............................ 19

13.  Payment of Impositions; Further Assurances............... 19

14.  Compliance with Legal and Insurance Requirements
     and with Instruments..................................... 20

15.  Liens.................................................... 20

16.  Permitted Contests....................................... 21

17.  Insurance................................................ 22

18.  Damage................................................... 24

19.  Condemnation or Eminent Domain........................... 26

20.  Termination After Certain Events......................... 28

21.  Conditions of Termination and Conveyance................. 34

22.  Estoppel Certificates; Information....................... 35

23.  Rights to Perform the Lessee's Covenants................. 35


24.  Assignments..............................................  36

25.  Lease Events of Default and Remedies.....................  36

26.  Surrender; Acceptance of Surrender.......................  42

27.  No Merger................................................  43

28.  Notices..................................................  43

29.  Allocation of Amounts....................................  44

30.  Amendments...............................................  44

31.  Severability.............................................  44

32.  Taxes; Tax Benefits......................................  45

33.  Sale of Nuclear Fuel and Assignment of Rights under
     Nuclear Fuel Contracts...................................  45

34.  Miscellaneous............................................  47


NUCLEAR FUEL LEASE AGREEMENT

THIS NUCLEAR FUEL LEASE AGREEMENT dated as of November 23, 1993 (as the same may be amended, modified or supplemented from time to time, this "FUEL LEASE"), between CommEd Fuel Company, Inc., a Delaware corporation ("LESSOR" or the "COMPANY"), and Commonwealth Edison Company, an Illinois corporation ("LESSEE").

W I T N E S S E T H:

WHEREAS, Lessee is party to a Nuclear Fuel Lease Agreement dated as of December 1, 1985, with CWE Fuel Company Inc. and a Nuclear Fuel Lease Agreement dated as of March 22, 1984, with Commonwealth Fuel Company II (together with CWE Fuel Company Inc., referred to herein as the "EXISTING FUEL COMPANIES", and individually as an "EXISTING FUEL COMPANY"), in each case relating to the lease by the respective lessor to Lessee of certain nuclear materials to be used in the production of heat for the generation of electricity (collectively, the "EXISTING LEASES"); and

WHEREAS, Lessee believes it is desirable to combine the Existing Leases into a single lease, to have the Lessor acquire the nuclear fuel currently leased by Lessee from the Existing Fuel Companies under the Existing Leases and to provide for the lease by Lessor to Lessee of the nuclear fuel so acquired as well as certain other nuclear fuel materials to be used from time to time in the production of heat for the generation of electricity; and

WHEREAS, Lessor proposes to so acquire such nuclear fuel and to enter into the Original Credit Agreement, the Original Note Purchase Agreements relating to the issuance and sale of IT Notes, and the Trust Indenture (as such terms are hereinafter defined);

NOW, THEREFORE, Lessor and Lessee hereby agree as follows:

SECTION 1. Defined Terms.

Except as otherwise specifically defined herein, the capitalized terms used in this Fuel Lease which are defined in Appendix A to this Fuel Lease shall have the respective meanings assigned in Appendix A.


SECTION 2. Representations and Warranties of Lessee.

The Lessee represents and warrants to the Lessor:

(a) Corporate Matters. The Lessee is a corporation duly organized, validly existing and in good standing under the laws of the State of Illinois, with full power and authority to own and operate its properties and conduct its business as presently being conducted; and the Lessee is duly qualified to do business as a foreign corporation in good standing in each jurisdiction in which its ownership or leasing of properties or the conduct of its business requires such qualification. The execution, delivery and performance by the Lessee of this Fuel Lease, the other Basic Documents to which it is a party and the certificates, instruments and documents executed, or to be executed, on behalf of the Lessee in connection with the transactions contemplated hereby and thereby, and the performance by the Lessee of its obligations hereunder and thereunder, are within the Lessee's corporate powers and have been duly authorized on behalf of the Lessee by all necessary corporate action. The execution, delivery and performance by each Existing Fuel Company of its Original Bill of Sale and the certificates, instruments and documents executed, or to be executed, on behalf of such Existing Fuel Company in connection with the transactions contemplated thereby, and the performance by such Existing Fuel Company of its obligations thereunder, are within such Existing Fuel Company's corporate powers and have been duly authorized on behalf of such Existing Fuel Company by all necessary corporate action.

(b) Validity, Enforceability. The Basic Documents to which Lessee is a party, the Original Bills of Sale executed by the Existing Fuel Companies and the certificates, instruments and documents executed, or to be executed, on behalf of the Lessee or an Existing Fuel Company in connection with the transactions contemplated by such Basic Documents or the Original Bills of Sale constitute, or when executed and delivered will constitute, legal, valid and binding obligations of the Lessee or such Existing Fuel Company (as the case may be), enforceable against the Lessee or such Existing Fuel Company (as the case may be) in accordance with their respective terms, except as enforceability may be limited by bankruptcy, insolvency, reorganization, moratorium, and other similar laws of general applicability relating to or affecting the enforceability of creditors' rights generally or by general principles of equity and except as enforceability may be limited by the Atomic Energy Act and the regulations thereunder.

(c) Financial Statements. The Lessee has furnished or will furnish as soon as practicable to the Lessor copies of each of its Annual Reports on Form 10-K, each of its Quarterly Reports on Form 10-Q, and each of any other reports and documents filed by the Lessee with the Securities and Exchange Commission (other than registration statements on Forms S-3 and S-8 and registration statements on Form S-4 relating to registered exchange offers by the Lessee for its privately placed securities), all as so filed at

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any time on or after the date of the filing of its Quarterly Report on Form 10-Q for the quarter ended June 30, 1993. The financial statements contained in such documents fairly represent, and the financial statements to be delivered hereafter by the Lessee to the Lessor, any Assignee or any Secured Party will fairly represent, the financial position, results of operations, and changes in financial position of the Lessee as of the dates and for the periods indicated therein and have been prepared, and will have been prepared, in accordance with generally accepted accounting principles applied on a consistent basis (except as otherwise indicated therein).

(d) Changes, etc. Since June 30, 1993, there has been no change in the condition or business of the Lessee which in any way materially adversely affects the ability of the Lessee to perform its obligations under the Basic Documents to which it is a party except for the settlements described in Lessee's Current Report on Form 8-K dated September 24, 1993 (which settlements became final in November 1993).

(e) Litigation, etc. There is no action, suit, proceeding or investigation at law or in equity or by or before any governmental instrumentality or other agency now pending or, to the knowledge of the Lessee, threatened against or affecting the Lessee or any property or rights of the Lessee which questions the validity of the Basic Documents to which it is a party or which Lessee reasonably believes would materially adversely affect the ability of the Lessee to perform its obligations thereunder.

(f) Compliance with Other Instruments, etc. The execution, delivery and performance of the Basic Documents to which the Lessee is a party and the certificates, instruments and documents executed, or to be executed, on behalf of the Lessee in connection with the transactions contemplated thereby will not result in any violation of any term of the restated articles of incorporation or the by-laws of the Lessee or of any agreement, indenture or similar instrument, license, judgment, decree, order, law, statute, ordinance or governmental rule or regulation applicable to the Lessee or its property.

(g) Consent, etc. There are no consents, licenses, orders, authorizations or approvals of, or registrations with, any governmental or public body or authority which presently are required in connection with the valid execution, delivery and performance of the Basic Documents to which the Lessee is a party, the valid execution, delivery and performance of the Original Bills of Sale by the Existing Fuel Companies, and the certificates, instruments and documents executed, or to be executed, on behalf of the Lessee or either of the Existing Fuel Companies in connection with the transactions contemplated thereby, that have not been obtained and any such consents, licenses, orders, authorizations, approvals and registrations that have been obtained are in full

-3-

force and effect. There are no material consents, licenses, permits, certificates, orders, authorizations or approvals of, or registrations with, any Person which presently are required in connection with the ownership by the Lessee of its property and assets and for the conduct of its business as now conducted, that have not been obtained or for which applications for renewal have not been timely filed and are pending, and consents, licenses, permits, certificates, orders, authorizations, approvals and registrations that have been obtained are in full force and effect.

(h) Defaults. The Lessee is not in default under (i) any contract to which it is a party with any manufacturer relating to the acquisition, processing, enrichment or fabrication of nuclear fuel materials, and, to the best of Lessee's knowledge, none of the other parties to such contracts are in material default of their obligations to Lessee thereunder, or (ii) any agreement, indenture or mortgage for borrowed money in excess of $20,000,000.

(i) ERISA. The provisions of each defined benefit plan, as defined in
Section 3(35) of ERISA, maintained by the Lessee or by any consolidated subsidiary of the Lessee are in compliance in all material respects with applicable requirements of ERISA and of the Code, and with all applicable rulings and regulations issued under the provisions of ERISA and the Code setting forth those requirements.

(j) Title to Fuel; Liens. (1) Each Nuclear Fuel Contract assigned under this Fuel Lease on the date hereof is in full force and effect, and Lessee has delivered to Lessor a true and complete copy of such Nuclear Fuel Contract as presently in effect; (2) prior to its sale to Lessor, Lessee or an Existing Fuel Company, as the case may be, had good title to all of the Nuclear Fuel transferred by it, free and clear of all Liens (except for Liens permitted by
Section 15(i), (ii), (iv) or (vi) of this Fuel Lease), and Lessee and the Existing Fuel Companies have not previously sold, assigned, transferred or created any Lien in, the Nuclear Fuel, any Nuclear Fuel Contract or any part thereof (except for Liens of or granted by the Existing Fuel Companies which are to be released contemporaneously with the purchase of such Nuclear Fuel from the Existing Fuel Companies); (3) Lessee shall warrant and defend forever Lessor's title to the Nuclear Fuel so transferred by Lessee or an Existing Fuel Company;
(4) neither Lessee nor either Existing Fuel Company, as applicable, has waived performance by any other Person obligated under any assigned Nuclear Fuel Contract of any material obligation of such Person thereunder; (5) neither Lessee nor any other Person is in default in the payment, performance or observance of any material term, covenant or agreement on its part to be performed or observed under any assigned Nuclear Fuel Contract; and (6) no financing statement (other than any which may have been filed on behalf of any Assignee of Lessor) covering all or any part of the Nuclear Fuel or any Nuclear Fuel Contract is on file in any public office (except for

-4-

financing statements of the Existing Fuel Companies, which are to be released contemporaneously with the purchase of Nuclear Fuel from such Existing Fuel Companies).

SECTION 3. Lease of Nuclear Fuel; Term.

(a) The Lessor hereby leases to the Lessee, and the Lessee hereby leases from the Lessor, the Nuclear Fuel for the term provided in this Fuel Lease and subject to the terms and provisions hereof.

(b) The term of this Fuel Lease shall begin at 12:01 A.M., Chicago time, on November 23, 1993, and, except as otherwise provided herein, shall terminate on September 30, 2013.

SECTION 4. Title to Remain in the Lessor; Fuel Management; Nuclear Fuel to be Personal Property and Used for Generation; Location.

(a) Title to and ownership of the Nuclear Fuel shall at all times remain in the Lessor and at no time become vested in the Lessee except in accordance with an express provision of this Fuel Lease. This agreement is a lease only, and shall not give or grant to the Lessee any right, title or interest in or to the Nuclear Fuel, or any portion thereof, except the rights of a tenant in accordance with the provisions hereof.

(b) Except as otherwise expressly limited by the provisions of this Fuel Lease, the Lessee shall have full right and lawful authority to engage in Fuel Management. The Lessee is hereby designated the lawful representative of the Lessor in all dealings with the Manufacturers and any regulatory agency having jurisdiction over the ownership, possession or utilization of the Nuclear Fuel.

(c) The Nuclear Fuel is personal property and the Lessee shall, at its expense, take all such action as may be required to cause the Nuclear Fuel to retain its character as personal property. The Nuclear Fuel shall not become part of any real property on which it or any portion thereof may from time to time be situated, notwithstanding the means by which it is installed or attached thereto and notwithstanding any law or custom or the provisions of any lease, mortgage or other instrument applicable to any such real property. The Lessee agrees to indemnify the Lessor and each Assignee and each Secured Party against, and to hold the Lessor and each Assignee and each Secured Party harmless from, all losses, costs and expenses resulting from any of the Nuclear Fuel becoming real property.

(d) The Lessee represents and warrants to the Lessor that the Nuclear Fuel location will be limited to: (i) the Manufacturers' facilities, (ii) a Generating Facility, (iii) a

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Storage Facility, (iv) a Reprocessing facility, or (v) transit between any of such facilities, except as Lessee is otherwise instructed by Lessor pursuant to
Section 25(b)(ii) hereof and except as provided in Section 10(a) hereof.

SECTION 5. Basic Rent and Additional Rent; Procedure for Payment.

(a) The Lessee irrevocably and unconditionally covenants to pay to the Lessor, or to such other person as the Lessor may direct, on each Basic Rent Payment Date, at not later than 10:00 A.M., Chicago time, the respective amounts of Basic Rent (net of any prepayments) shown on Annex I to the Rent Schedule delivered to the Lessor in accordance with clause (i) of Section 5(b) hereof in respect of such Basic Rent Payment Date. The Lessee may prepay Basic Rent at any time by delivering such amount and a Rent Schedule appropriately completed. The Lessee agrees to prepay Basic Rent if and to the extent required to enable Lessor to pay interest or other amounts due under a Credit Agreement, the Note Purchase Agreements, the IT Notes or any other Basic Documents.

(b) On or before each Basic Rent Payment Date, the Lessee shall:

(i) deliver to the Lessor a Rent Schedule and Annex I duly completed with respect to the Basic Rent Period ending on or immediately prior to such Basic Rent Payment Date; and

(ii) pay to the Lessor, or to such other Person as the Lessor may direct, the amount shown for Basic Rent (net of any prepayments) in such Annex I.

Each such Rent Schedule shall be signed and delivered in triplicate.

(c) All sums payable by the Lessee to the Lessor shall be payable in funds which are immediately available at the place of payment on the date when due, and shall be paid to the Lessor at the Lessor's address for purposes of notices hereunder or to such other person or at such other address as the Lessor may from time to time designate.

(d) In addition to the Basic Rent, the Lessee will also pay, on demand, from time to time, as additional rent (herein called "ADDITIONAL RENT") to the Lessor or such other persons as the Lessor may direct from time to time,
(i) all Lessor's legal, accounting, administrative and other management and operating expenses and taxes to the extent not paid as part of the Basic Rent,
(ii) all expenses and payments under Sections 4(c), 5(g) and 11 hereof, (iii) interest at the rate incurred by the Lessor, as a result of any delay in payment by the Lessee, to meet obligations that would have been satisfied out of prompt payment by the Lessee,

-6-

and (iv) any other amounts necessary to enable the Lessor to meet its obligations under the Basic Documents. In the event of any failure by the Lessee to pay Additional Rent, the Lessor shall have all the rights, powers and remedies as in the case of failure to pay Basic Rent.

(e) The Lessee shall have reasonable access to the books and accounting records, if any, relating to this Fuel Lease maintained by the Lessor for purposes of auditing the computation of any and all payments made or accrued under this Fuel Lease, and Lessor shall, upon reasonable notice and at Lessee's expense, make such books and accounting records available on Lessor's premises for such purpose or such other purposes as the Lessee deems appropriate.

(f) The Lessor shall have reasonable access to the books and accounting records of the Lessee relating to the Nuclear Fuel and Nuclear Fuel Contracts for purposes of auditing the computation of any and all payments made or accrued under this Fuel Lease.

(g) If any lien, encumbrance or charge of any kind or any judgment, decree or order of any court or other governmental authority (including, without limitation, any tax lien affecting the Lessor), whether or not valid, shall be asserted or entered which interferes with the due and timely payment of any sum payable hereunder or the due and timely receipt and application thereof by Lessor or any Secured Party of any sum payable by Lessor under or pursuant to a Credit Agreement, any Additional Financing, the Note Purchase Agreements or the IT Notes, Lessee shall, on receipt of notice to that effect from Lessor, promptly take such legally permissible action as may be necessary to prevent or terminate such interference. Lessee shall indemnify and hold harmless Lessor and each Secured Party from and against any and all losses and damages caused by any such interference.

(h) The obligation of Lessee to make all payments pursuant to this Fuel Lease (including, without limitation, the payments to be made pursuant to
Section 20(b) hereof) shall be absolute and unconditional and shall not be affected by any circumstances of any character. The obligation of Lessee to make all payments due hereunder and to take any and all Nuclear Fuel during the term of this Fuel Lease is without any warranty or representation as to any matter whatsoever on the part of the Lessor or any Assignee or any Secured Party and, as between Lessee and Lessor, any Assignee or any Secured Party, Lessee assumes all risks and waives any and all defenses to such obligation to pay, including, without limitation, any defense relating to: (a) the safety, title, condition, intensity, quality, quantity, temperature, fitness for use, merchantability or any other quality or characteristic of the Nuclear Fuel, or whether or not any heat whatsoever is produced by the Nuclear Fuel or is taken or utilized by Lessee, (b) any setoff, counterclaim, recoupment, defense or

-7-

other right which Lessee may have against the Lessor, any holder of outstanding Commercial Paper from time to time, any holder of outstanding IT Notes from time to time, any Assignee, any Secured Party or anyone else for any reason whatsoever, (c) any defect in title or ownership of the Nuclear Fuel or in the condition, design, operation, merchantability or fitness for a particular purpose of the Nuclear Fuel or any Generating Facility or any part of either thereof, (d) any loss, theft or destruction of, or damage to, the Nuclear Fuel, in whole or in part, or cessation of the use or possession of the Nuclear Fuel by Lessee for any reason whatsoever and of whatever duration, or any condemnation, confiscation, requisition, seizure, purchase, taking or forfeiture of the Nuclear Fuel, in whole or in part, unless upon any of the foregoing occurrences this Fuel Lease shall have terminated and the Nuclear Fuel shall have been purchased by Lessee pursuant to Section 20(b) hereof, (e) any inability or illegality with respect to the use or possession of the Nuclear Fuel by Lessee or the ownership thereof by the Lessor, (f) any failure to obtain, or expiration, suspension or other termination of, or interruption to, any required governmental licenses, permits, consents, authorizations or approvals, (g) the invalidity or unenforceability of this Fuel Lease or any other Basic Document or any other infirmity therein or any lack of power or authority of the Lessor or Lessee to enter into this Fuel Lease or any other Basic Document, (h) any insolvency, bankruptcy, reorganization or similar proceeding by or against Lessee, (i) whether, at any time in question, any contractor shall have performed any of its duties and obligations under any Nuclear Fuel Contract or any other agreement relating thereto, (j) any act, failure to act, omission or breach on the part of Lessor, any Bank, any IT Noteholder, or the Indenture Trustee under the Credit Agreement, the Note Purchase Agreements, the Indenture or any Basic Document or other documents or otherwise including, without limitation, the failure of any Bank, any IT Noteholder, the Indenture Trustee or the Lessor to take any action or exercise any right hereunder or under the Credit Agreement, the Note Purchase Agreements, the Indenture, any Basic Document or any other document referred to herein or therein or contemplated hereby or thereby, (k) any claim resulting from any other dealing between Lessor, any Bank, any IT Noteholder or the Indenture Trustee, and Lessee (it being understood that the foregoing shall not be deemed a waiver of any rights which Lessee may have against any such party as a result of any such act, failure to act, omission or breach), (l) any renewal, extension, modification, acceleration, compromise, amendment, supplement, termination, sale, exchange, waiver, surrender, release, indulgence or other act, or failure to act, or omission by any party in respect of the Credit Agreement, the Note Purchase Agreements, any Basic Document, any of the IT Notes, any Nuclear Fuel Contract or any security document or other document referred to in or contemplated by any thereof, or with respect to any indebtedness or obligation of Lessor, whether or not Lessee shall have assented thereto or have had any notice or knowledge of any of the foregoing, (m) the legality, validity, irregularity or

-8-

enforceability of any Basic Document, the Credit Agreement, the Note Purchase Agreements, any of the IT Notes, any Nuclear Fuel Contract or any other agreement of Lessee, Lessor or any Bank, IT Noteholder or the Indenture Trustee relating to the Nuclear Fuel or any Generating Facility or the financing, construction, ownership, purchase or sale thereof, or (n) any other circumstances or happening whatsoever, whether or not similar to any of the foregoing which might otherwise serve as a defense or relieve Lessee of any of its obligations and liabilities hereunder, any present or future law to the contrary notwithstanding, it being the intent of the parties hereto that all amounts payable by Lessee hereunder shall continue to be payable in all events, in the manner and in the time herein provided and that the obligation to make such payments shall not be discharged except by payment in full as herein provided. Lessee hereby waives any and all rights which it may now have or which at any time hereafter may be conferred upon it, by statute or otherwise, to terminate, revoke, cancel, quit, rescind or surrender this Fuel Lease or to any abatement, suspension, deferment, diminution or redemption of any amounts payable by Lessee hereunder except in accordance with the express terms hereof. If for any reason whatsoever this Fuel Lease shall be terminated in whole or in part by operation of law or otherwise, except as is specifically provided herein, Lessee nonetheless agrees to pay to the Lessor an amount equal to each payment set forth in Section 5 and Section 20(b) hereof at the time such payment would have become due and payable in accordance with the terms hereof had this Fuel Lease not been terminated in whole or in part. All payments made by Lessee pursuant to this Fuel Lease shall be final and Lessee will not seek or have any right to recover all or any part of such payment from the Lessor, any holder of Commercial Paper, any holder of IT Notes, any Assignee, any Secured Party or any other party to any of the Basic Documents or any of the other agreements referred to herein, except in the case of overpayment by mistake.

SECTION 6. Payment of Costs by the Lessor.

So long as no Lease Event of Default has occurred and is then continuing and no Termination Event has occurred, whenever the Lessee desires the Lessor to acquire title to property which, upon such acquisition, shall become a part of the Nuclear Fuel and to pay any Acquisition Costs relating thereto, or the Lessee desires that payment to a Manufacturer or payment to the Lessee be made of any Acquisition Costs or Capitalized Costs or both of any portion of the Nuclear Fuel, including Nuclear Fuel acquired after the date of this Fuel Lease either as additional Nuclear Fuel or as replacement Nuclear Fuel, the Lessee may deliver to the Lessor a Fuel Schedule in substantially the form of Schedule D hereto, dated as of the date of delivery and fully executed by the Lessee, which shall (i) describe in Annex II thereto, in the same manner as in Schedule A hereto, such portion of the Nuclear Fuel, (ii) set forth in Annex I thereto, in the manner specified in Section 29 hereof,

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the Acquisition Costs and Capitalized Costs payable to such Manufacturer or incurred by the Lessee or the Lessor as of the date of such Fuel Schedule with respect to such portion of the Nuclear Fuel, and (iii) set forth in item 2 thereof that portion of such Acquisition Costs and Capitalized Costs which have not previously been the basis of payment to such Manufacturer or payment to the Lessee pursuant to this Section 6, and with respect to which the Lessee desires payment. Each delivery of a Fuel Schedule by the Lessee shall constitute a representation by the Lessee to the effect that since the date of its last Fuel Schedule there has been no material change in the condition or business of the Lessee which in any way materially adversely affects the ability of the Lessee to perform its obligations under the Basic Documents to which it is a party, except as may be set forth in Forms 10-K, 10-Q or 8-K or in Registration Statements filed by the Lessee with the Securities and Exchange Commission since such date, copies of which shall be attached to such Fuel Schedule.

At such time as a Nuclear Fuel Contract provides for transfer of title to any portion of the Nuclear Fuel for which a Fuel Schedule has been or is being submitted to the Lessor by the Lessee, the Lessee shall cause the relevant Manufacturer to deliver to the Lessor a duly executed Bill of Sale (or shall itself deliver a Bill of Sale to the Lessor if title is being transferred by Lessee to Lessor) substantially in the form of Schedule C hereto describing any portion of the Nuclear Fuel unless the Nuclear Fuel Contract provides for the transfer of title to the Lessor without execution and delivery by the relevant Manufacturer of a bill of sale; and at such time as a Fuel Schedule is delivered, the Lessee shall deliver to the Lessor a duly executed Bill of Sale substantially in the form of Schedule C hereto describing any portion of the Nuclear Fuel to which the Lessee has title; and the Lessor shall accept such Bill or Bills of Sale. Not later than ten days after the Lessor shall have received a Fuel Schedule hereunder, the Lessor shall pay to the Lessee the amount of the requested payment in immediately available funds if so requested and shall complete such Fuel Schedule so delivered by setting forth in Annex I thereto the Investment in such portion of the Nuclear Fuel as of the date of such payment, and shall execute such Fuel Schedule and deliver copies thereof to the Lessee, provided, however, that the Lessor shall not be required to make any payment pursuant to this Section 6 (i) if and to the extent that, at the time of such payment by the Lessor, such payment exceeds the sum of (a) the amount of credit then capable of being drawn by the Lessor under a Credit Agreement, all Additional Financings and IT Notes in effect at the time of such proposed payment plus (b) the amounts available to the Lessor for disbursement from the Collateral Account or (ii) if such proposed payment relates to a Nuclear Fuel Contract between the Lessee and a Manufacturer which has not theretofore been duly assigned (in form and substance satisfactory to the Lessor) by the Lessee to the Lessor as an Assigned Agreement or a Partially Assigned Agreement and as to which assignment Lessor

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has not received evidence to establish that such Manufacturer has theretofore consented to the extent reasonably practicable (in form and substance satisfactory to the Lessor).

SECTION 7. Taxes.

The Lessee agrees that it will promptly pay or contest in good faith all taxes, assessments and other governmental charges and fees levied or assessed upon the interest of the Lessor in the Nuclear Fuel or any part thereof during the term of this Fuel Lease and against the Lessor on account of the transactions, including investments, contemplated by the Basic Documents and the documents contemplated therein including, without limitation, any Federal, state or local income or excess profits taxes or franchise taxes against the Lessor on or measured by any moneys payable under the Basic Documents or the net income therefrom or by the value of any Nuclear Fuel; provided that this Section 7 shall not be deemed to obligate the Lessee to pay any excise and use taxes, and other governmental charges which may have been included in the Capitalized Cost of any Nuclear Fuel. The Lessee further agrees at its expense, to do to the extent permitted by law or applicable regulatory agencies, all things required to be done by the Lessor in connection with the levy, assessment, billing or payment of any such taxes and is hereby authorized by the Lessor to act for and on behalf of the Lessor in any and all such respects, and to file, on behalf of the Lessor, all required tax returns and reports concerning the Nuclear Fuel.

SECTION 8. Condition and Use of Nuclear Fuel; Quiet Enjoyment.

(a) Each assembly of the Nuclear Fuel is leased subject to the rights of any parties in possession thereof and the state of the title thereto and the rights of ownership therein whenever the same first becomes subject to this Fuel Lease, and subject to the right of any secured party under any security agreement, and to all applicable zoning regulations, restrictions, rules, licenses and ordinances, building restrictions and other laws and regulations now in effect or hereafter adopted by any governmental authority having jurisdiction, and is leased in the state and condition thereof when the same first becomes subject to this Fuel Lease, without representations or warranties of any kind by the Lessor, any Assignee or Secured Party, or any person acting on behalf of any of them. THE LESSEE ACKNOWLEDGES AND AGREES THAT THE TYPE AND DESIGN OF THE NUCLEAR FUEL HAVE NOT BEEN SELECTED BY THE LESSOR, ANY ASSIGNEE OR SECURED PARTY, THAT NEITHER THE LESSOR, NOR ANY ASSIGNEE NOR ANY SECURED PARTY HAS SUPPLIED ANY SPECIFICATIONS WITH RESPECT TO THE MANUFACTURE OF ANY PORTION THEREOF AND THAT NEITHER THE LESSOR, NOR ANY ASSIGNEE, NOR ANY SECURED PARTY NOR ANY PERSON (EXCEPT THE LESSEE) ACTING ON BEHALF THEREOF (i) IS A MANUFACTURER OF, OR DEALER IN, NUCLEAR MATERIAL OF ANY KIND OR HAS ANY LICENSE TO USE OR POSSESS SUCH MATERIAL, (ii) HAS MADE ANY RECOMMENDATION,

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GIVEN ANY ADVICE OR TAKEN ANY OTHER ACTION WITH RESPECT TO (x) THE CHOICE OF ANY MANUFACTURER, SUPPLIER, VENDOR, PROCESSOR, DESIGNER, FABRICATOR OR TRANSPORTER OF, OR ANY OTHER CONTRACTOR WITH RESPECT TO, THE NUCLEAR FUEL OR ANY PORTION THEREOF, OR (y) ANY ACTION TAKEN OR TO BE TAKEN WITH RESPECT TO THE NUCLEAR FUEL OR ANY PORTION THEREOF AT ANY STAGE OF THE NUCLEAR FUEL CYCLE, (iii) HAS AT ANY TIME HAD PHYSICAL POSSESSION OF ANY PORTION OF THE NUCLEAR FUEL OR MADE ANY INSPECTION THEREOF OR (iv) HAS MADE ANY WARRANTY OR OTHER REPRESENTATION, EXPRESS OR IMPLIED, THAT THE NUCLEAR FUEL (x) WILL NOT RESULT IN INJURY OR DAMAGE TO PERSONS OR PROPERTY, (y) HAS BEEN PROPERLY DESIGNED OR FABRICATED OR WILL ACCOMPLISH THE RESULTS WHICH THE LESSEE INTENDS THEREFOR, OR (z) IS SAFE IN ANY MANNER OR RESPECT. NO WARRANTY HAS BEEN OR IS MADE BY THE LESSOR, ANY ASSIGNEE, ANY SECURED PARTY OR ANY PERSON ACTING ON BEHALF THEREOF, EXPRESS OR IMPLIED, RELATING TO THE NUCLEAR FUEL OR ANY PORTION THEREOF, WITH RESPECT TO MERCHANTABILITY, FITNESS OR OTHERWISE, WHETHER ARISING PURSUANT TO THE UNIFORM COMMERCIAL CODE OR ANY OTHER PRESENT OR FUTURE LAW, OR OTHERWISE.

(b) The Lessor hereby assigns to Lessee any and all rights Lessor may have under any Manufacturer's warranties or undertakings, express or implied, and authorizes the Lessee at the Lessee's cost and expense, to assert all rights and claims, and to bring suits, actions and proceedings, in its own name or in the name of the Lessor, in respect of any Manufacturer's warranties or undertakings, express or implied, relating to any portion of the Nuclear Fuel and, in the absence of a Lease Event of Default hereunder, to retain the proceeds of any such suits, actions and proceedings.

(c) The Lessee has investigated the state of the title to and rights of ownership in the Nuclear Fuel subject to this Fuel Lease at the commencement of the term hereof and has made a physical inspection of the Nuclear Fuel subject to this Fuel Lease at the commencement of the term hereof or reasonably prior thereto and is satisfied with and has approved the same for all purposes hereof. The Lessee will from time to time after such commencement make a similar investigation of title and rights of ownership of each portion of the Nuclear Fuel as the same becomes subject to this Fuel Lease and will not permit any such portion to become subject to this Fuel Lease unless the Lessee is similarly satisfied with and has similarly approved the same for all purposes hereof. The Lessee warrants that all Nuclear Fuel will be, at the time it becomes subject to this Fuel Lease, free of liens, encumbrances and rights of other persons, except as permitted by this Fuel Lease, and except as provided in
Section 8(b) hereof, the Lessee will not, without the prior written consent of the Lessor, take any action which would affect or impair the Lessor's rights in respect of Manufacturers' or other warranties or undertakings. No approval by the Lessee pursuant to this Section 8(c) shall affect or impair any of the Lessee's rights under Section 8(b) hereof or otherwise in respect of any Manufacturers' or other warranties or undertakings.

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(d) So long as no Lease Event of Default shall have occurred and be continuing, the Lessee shall have exclusive possession and use of the Nuclear Fuel. The Lessee may use the Nuclear Fuel for the generation of electricity and purposes incidental, supplemental or ancillary thereto, including storage or holding of the Nuclear Fuel for ultimate usage thereof. The Lessee will not do or permit any act or thing to be done (i) which might impair the value or usefulness of the Nuclear Fuel or any part thereof (other than (w) any impairment of Nuclear Fuel loaned pursuant to Section 10(e) hereof, (x) in the normal usage thereof in the production of electric energy, (y) as may be incidental to the Nuclear Fuel Cycle, or (z) as such value may be reduced by a tax benefit transfer permitted by Section 32(b) hereof), (ii) which is contrary to any Legal Requirement or Insurance Requirement, or (iii) which might impair the security interest of any Assignee in the Nuclear Fuel or in Lessor's interest in this Fuel Lease.

SECTION 9. Maintenance of the Nuclear Fuel.

The Lessee will (i) at its own expense (without limiting the Lessee's right, if any, to request payment by the Lessor of such expense provided in
Section 6 hereof; provided that, if the Lessee has received payment by the Lessor of such expense, any insurance proceeds received by the Lessee to reimburse it for such expense will be paid by the Lessee to the Lessor) keep the Nuclear Fuel in good condition and will promptly make or cause to be made all necessary or appropriate repairs, replacements and renewals or Restoration thereof, and (ii) at its own expense (without limiting the Lessee's right, if any, to request payment by the Lessor of such expense provided in Section 6 hereof) arrange for proper Fuel Management. The Lessee shall use its best efforts to see that all repairs, replacements and renewals or Restoration shall be done in a workmanlike manner. The Lessee will be responsible for all actions and expense necessary or appropriate for the proper acquisition, transportation, utilization, preservation, storage, disposal and safety of the Nuclear Fuel. Neither the Lessor nor any Assignee nor any Secured Party shall be required to perform any construction, or to alter, repair, rebuild or replace the Nuclear Fuel or any portion thereof, or to maintain, service or manage the Nuclear Fuel or any portion thereof in any way or to engage in Fuel Management, and the Lessee hereby expressly waives the right, if any, to perform any construction, or to make such alterations or repairs or to effect any such Fuel Management at the expense of the Lessor, any Assignee or any Secured Party which may be provided for in any law now in effect or hereafter enacted.

SECTION 10. Removals, Purchase of Nuclear Fuel, Transfer to the Lessee, Commingling, Substitution.

(a) If no Lease Event of Default under this Fuel Lease shall have occurred and be continuing, the Lessee shall have the right at any time and from time to time during the continuance of

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this Fuel Lease, at the Lessee's expense (without limiting the Lessee's right, if any, to request payment by the Lessor of such expenses provided in Section 6 hereof) to move any assembly of the Nuclear Fuel to any location in accordance with Section 4(d) hereof for the purpose of storage or having services performed thereon in connection with any stage of the Nuclear Fuel Cycle other than the Heat Production stage, provided that no such action shall materially reduce the heat production capacity, Net Investment Value, or fair market value of such assembly, provided, further, that Lessee shall give notice to the Indenture Trustee and the Lessor if any such move requires the movement of such Nuclear Fuel outside the State of Illinois, and provided, further, that unless such assembly shall have been released from this Fuel Lease pursuant to Section 10(b) hereof, (i) such assembly shall be and remain the property of the Lessor, subject to this Fuel Lease and the Trust Indenture (except as permitted by
Section 10(c) hereof) and (ii) as a condition of such removal and relocation, all necessary governmental approvals and licenses with respect thereto shall have been procured and shall be in full force and effect, all necessary recordings and filings shall have been duly made in the public offices in which such recordings and filings must be made in order to publish notice or otherwise protect the validity and effectiveness of this Fuel Lease and the valid first security interest created therein or in the Nuclear Fuel by the Trust Indenture with respect to such Nuclear Fuel (except as permitted by Section 10(c) hereof) and with respect to this Fuel Lease and payments hereunder and with respect to any Nuclear Fuel Contract, and all fees, taxes and charges payable in connection with such recordings and filing shall have been paid in full by the Lessee and the Lessee shall have complied in full with all applicable Legal Requirements and Insurance Requirements. Any such removal shall constitute the agreement of the Lessee that the Lessee will continue to be obligated in respect of such assembly as provided in this Fuel Lease notwithstanding such removal, that the Lessee will pay or cause to be paid (without limiting the Lessee's right, if any, to request payment by the Lessor of such expense provided in Section 6 hereof) all taxes and expenses incurred or to be incurred by the Lessor, the Lessee, any Assignee and any Secured Party by reason of such removal and relocation, and that the indemnities by the Lessee contained in Section 11 hereof shall extend to the use, possession, conduct or management, or any work, improvement, demolition or thing done in or about or in respect of such assembly so removed to the same extent as if its place or relocation were a Generating Facility. The provisions of this Section 10(a) shall be applicable to each subsequent removal of any assembly of the Nuclear Fuel so removed from the place of relocation to which it was removed after its initial removal from the Generating Facility.

(b) So long as there is no Termination Event, at any time and from time to time, the Lessee shall have the right to purchase all or any portion of the Nuclear Fuel. Partial interests in the separate assemblies of the Nuclear Fuel may be purchased by

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the Lessee. In the event that (i) Heat Production with respect to any Nuclear Fuel, once commenced, for any reason (including but not limited to the occurrence of any event described in Section 18(a) and 18(b) hereof) ceases for a period of twenty-four consecutive months (subject, in the case of any event described in Section 18(a) hereof, to Unavoidable Delays, but in no event later than thirty months) or (ii) any Nuclear Fuel which was intended to have been engaged in Heat Production at a Generating Facility or Facilities at which an accident or incident referred to in Section 18(b) hereof has occurred cannot be reassigned to another Generating Facility as contemplated by Section 18(b), the Lessee shall, in the case of any Nuclear Fuel described in clause (i) hereof, purchase such Nuclear Fuel within sixty days after the expiration of such twenty-four month period notwithstanding any Unavoidable Delays (except as provided in Section 18(a) hereof) and shall, in the case of any Nuclear Fuel described in clause (ii) hereof, purchase such Nuclear Fuel as contemplated by
Section 18(b) hereof. In the event that Heat Production with respect to any Nuclear Fuel has been completed, then Lessee shall purchase pursuant to this
Section 10(b) such Nuclear Fuel unless Reprocessing is available and Lessee elects to have such Nuclear Fuel reprocessed and remain subject to this Fuel Lease as provided in Section 10(c) hereof. In the event that any Nuclear Fuel is found to be stolen or lost or any event shall occur which results in any Nuclear Fuel (i) not being provided by a Manufacturer pursuant to the applicable Nuclear Fuel Contract (ii) not being returned to the Company from a Manufacturer pursuant to the applicable Nuclear Fuel Contract or (iii) being returned in a form which results in a reduction in the Net Investment Value of said Nuclear Fuel, then Lessee shall purchase such Nuclear Fuel or, in the case of clause
(iii) above, an amount of such Nuclear Fuel equal to such reduction in Net Investment Value. In the event Lessee permanently shuts down any Generating Facility for economic or other reasons, Lessee shall, with respect to Nuclear Fuel allocated for use at or by such Generating Facility, either purchase or reassign or relocate to another Generating Facility such Nuclear Fuel within six months from the date of such shutdown. Whenever the Lessee desires or is required to purchase any portion of the Nuclear Fuel, regardless of the then present stage of its Nuclear Fuel Cycle, then the Lessee shall deliver to the Lessor a certificate in the form of Schedule B hereto showing the Net Investment Value of such portion of the Nuclear Fuel at the date of such certificate and shall pay to the Lessor, in the manner provided by Section 5(c) hereof, an amount equal to such Net Investment Value and at such time shall pay all Additional Rent then due and payable to the Lessor. Thereupon, the Lessor shall deliver to the Lessee or any other Person designated by the Lessee a Bill of Sale in the form of Schedule E hereto transferring to the Lessee or such other Person for no additional consideration all right, title, interest and claim of the Lessor to such portion of the Nuclear Fuel. Thereupon such portion of the Nuclear Fuel shall cease to be Nuclear Fuel and shall cease to be subject to any

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provision of this Fuel Lease. Upon delivery of such Bill of Sale, the Lessor and the Lessee shall execute a Fuel Schedule eliminating the description of such portion of the Nuclear Fuel from Schedule A to this Fuel Lease as theretofore supplemented and amended.

(c) The Lessor and the Lessee recognize that during the processing and reprocessing of Nuclear Fuel leased hereunder before and after utilization in a Generating Facility, a Manufacturer performing service on such Nuclear Fuel may require that title thereto be transferred to such Manufacturer and that such Nuclear Fuel be commingled with other nuclear fuel, with an obligation on such Manufacturer, upon completion of the services, to reconvey a specified amount of nuclear fuel and clear and unencumbered title thereto. Accordingly, the Lessor and the Lessee agree that (i) Nuclear Fuel, which is subject to a Nuclear Fuel Contract, leased hereunder may become subject to such a contract notwithstanding any provision of this Fuel Lease to the contrary, (ii) as between the Lessor and the Lessee, such Nuclear Fuel shall be deemed to be and remain leased hereunder while title thereto is in such Manufacturer and (iii) title to the Nuclear Fuel so delivered by such Manufacturer upon completion of its services automatically shall vest in the Lessor, and such Nuclear Fuel automatically shall be leased hereunder and shall be subject to the Trust Indenture and any related security agreement in substitution for the Nuclear Fuel originally delivered to such Manufacturer. Upon such delivery to such Manufacturer and redelivery from such Manufacturer, the Lessee shall deliver to the Lessor an appropriate Fuel Schedule.

(d) After the utilization of the Nuclear Fuel leased hereunder in a Generating Facility, the Lessor will, at the Lessee's request, transfer title to Nuclear Fuel leased hereunder in accordance with Section 21 hereof to a third party in exchange for the simultaneous transfer to the Lessor of clear and unencumbered title to replacement Nuclear Fuel having a fair market value not less than that of the Nuclear Fuel conveyed to such third party, which replacement Nuclear Fuel shall for purposes of this Fuel Lease be deemed to have a Net Investment Value not less than that of the transferred Nuclear Fuel, subject to adjustment as set forth in the last sentence of this Section 10(d). The Nuclear Fuel received by the Lessor pursuant to any such exchange shall be automatically substituted for the Nuclear Fuel delivered by the Lessor and deemed to be subject to this Fuel Lease, the Trust Indenture and any related security agreement. Subject to the limitation on payment contained in Section 6 hereof, the Lessor shall pay any additional amounts required to effect such exchange. Such payments shall increase the Acquisition Cost of the substituted Nuclear Fuel and a new Fuel Schedule reflecting such increased Acquisition Cost shall be executed and delivered by the Lessor and the Lessee.

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(e) Notwithstanding anything else in this Fuel Lease to the contrary, Lessee may, upon prior written notice to Lessor, engage in one or more transactions by which a portion of the Nuclear Fuel is loaned to any one or more Nuclear Fuel Users ("PERMITTED FUEL LOAN"); provided that the Net Investment Value of the Nuclear Fuel so loaned, together with the Net Investment Value of Nuclear Fuel subject to all other Permitted Fuel Loans at that time outstanding, shall not, in the aggregate, exceed five percent of the Net Investment Value of all of the Nuclear Fuel as of the date of such transaction or transactions. Any Nuclear Fuel loaned by means of a Permitted Fuel Loan shall be released from this Fuel Lease upon the execution and delivery by Lessee to Lessor of three copies of a Fuel Schedule and Annex III thereto upon which a notation shall appear indicating that such Nuclear Fuel is to be released from this Fuel Lease. Thereupon, such portion of the Nuclear Fuel shall cease to be Nuclear Fuel and shall cease to be subject to any provision of this Fuel Lease or of any Trust Indenture. At the time of entering into any such Permitted Fuel Loan, Lessee shall assign to Lessor all rights of Lessee to receive nuclear fuel from such Nuclear Fuel User in repayment of such Permitted Fuel Loan. Lessee will nevertheless continue to be obligated in respect of such fuel as provided in this Fuel Lease, will pay or cause to be paid all taxes and reasonable expenses incurred by Lessor, Lessee, any Assignee or any Secured Party by reason of such transaction, and the indemnities contained in this Fuel Lease (including without limitation in Section 11 hereof) shall continue in full force and effect with respect to such fuel. Upon the repayment by any Nuclear Fuel User of fuel so loaned by delivery of the fuel comprising the repayment to Lessee, Lessee shall execute and deliver to Lessor three copies of a Fuel Schedule and Annex II thereto upon which a notation shall appear indicating that such fuel is to become subject to this Fuel Lease. Upon such delivery, the fuel shall become Nuclear Fuel and shall become subject to all provisions of this Fuel Lease and of the Trust Indenture. Lessee shall provide Lessor with monthly reports of all fuel loaned pursuant to a Permitted Fuel Loan.

SECTION 11. Indemnification by the Lessee.

The Lessee shall pay and indemnify and hold harmless the Lessor, each Assignee, each Secured Party, each Dealer, each Placement Agent and their respective officers, directors, incorporators, shareholders, partners, employees, agents and servants from and against all liabilities (other than liabilities arising out of the gross negligence or willful misconduct of such Person), Impositions, taxes (excluding, however, taxes measured solely by the net income of any Person indemnified or intended to be indemnified pursuant to this Section 11, except as otherwise provided in Section 7 hereof), losses, obligations, claims, damages, penalties, causes of action, suits, costs and expenses (including, without limitation, reasonable attorneys' and accountants' fees and expenses) and judgments of any nature arising

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from or in any way relating to any and all of the following during the term of this Fuel Lease and thereafter: (a) any injury to or disease, sickness or death of persons, or loss of or damage to property, occurring through or resulting from any nuclear incident (as that term is defined in the Atomic Energy Act, 42 U.S.C. (Section)2011 et seq.) involving or connected in any way with the Nuclear Fuel or any portion thereof, (b) the acquisition, ownership (including strict liability of an owner or liability without fault), possession, disposition, sale, use, nonuse, misuse, leasing, fabrication, design, cycling, recycling, transportation, containerization, cooling, processing, reprocessing, storing, condition, management, operation, construction, maintenance, repair or rebuilding of the Nuclear Fuel or any portion thereof or resulting from the condition of adjoining and underlying land, buildings, streets or ways, (c) any use, nonuse or condition of, or any other matter of circumstance relating to, a Generating Facility, any Storage Facility, any other property associated therewith or any adjoining and underlying land, buildings, streets and ways, (d) any violation or default, or alleged violation or default, of this Fuel Lease by or on behalf of Lessee, or of any contracts or agreements to which the Lessee is a party or by which it is bound, or any Legal Requirements, (e) performance of any labor or services or the furnishing of any materials or other property in respect of the Nuclear Fuel or any portion thereof, (f) any infringement or alleged infringement of any patent, copyright, trade secret or other similar right relating to the Nuclear Fuel or any portion thereof, (g) Lessor's agreements or obligations contained in this Fuel Lease or its assignment of the Fuel Lease to the Indenture Trustee as security for its borrowings, (h) any claim arising out of loss or damage to the environment or (i) any claim arising out of strict or absolute liability in tort. Lessee also indemnifies each indemnitee, as aforesaid, from and against all other liabilities, taxes, losses, obligations, claims, damages, penalties, causes of action, suits costs and expenses (including, without limitation, reasonable attorneys' and accountants' fees and expenses) and judgments of any nature which may be imposed on, incurred by, or asserted at any time against any indemnitee in any way relating to or arising out of the performance of this Fuel Lease or any other Basic Document to which Lessee is a party, provided, except for claims of a nature contemplated by clause (i) above, that the Lessee shall not be required to indemnify any indemnitee with respect to any liability relating to or arising out of indemnitee's gross negligence or willful misconduct and provided, further, that the foregoing immunity shall not limit the terms of any indemnity that the Lessee may grant separately to any indemnitee pursuant to any separate agreement. In the event that any action, suit or proceeding is brought against the Lessor or any other Person indemnified or intended to be indemnified pursuant to this Section 11 by reason of any such occurrence, the Lessor or such other Person or Persons shall promptly notify in writing the Lessee and thereupon the Lessee shall, at the Lessee's expense, resist and defend such action, suit or proceeding or cause the same

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to be resisted and defended by counsel designated by the Lessee and reasonably acceptable to the Person or Persons indemnified or intended to be indemnified under this Section 11 provided there is no conflict of interest with the Person or Persons indemnified or intended to be indemnified under this Section 11. In the event a conflict of interest contemplated by the proviso of the immediately preceding sentence shall exist, then the Person or Persons as to which such conflict exists may be defended by counsel of its or their choice at Lessee's expense, provided Lessee's obligation for such expense shall be limited to one firm for all such Persons as to which such a conflict exists. The obligations of the Lessee under this Section 11 shall survive any termination of this Fuel Lease, the Indenture, any Note Purchase Agreement or any Credit Agreement, in whole or in part, and any payment, in whole or in part, of the Secured Obligations.

SECTION 12. Right to Inspect Nuclear Fuel.

The Lessor, any Assignee and their authorized representatives may (i) enter any of the Generating Facilities or Storage Facilities owned by the Lessee at reasonable times, subject to applicable security regulations governing access thereto, for the purposes of inspecting the Nuclear Fuel and the reactors in which it may be loaded from time to time (subject to their availability for inspection and any legal or regulatory restrictions with respect thereto) and
(ii) discuss their condition and performance with the responsible officers and employees of the Lessee. The Lessee agrees subject to applicable state and Federal laws and regulations to make the Nuclear Fuel and the reactors in which it may be loaded from time to time available (to the extent practicable) for such inspection and to provide customary protective procedures and devices in connection therewith, and to make such officers and employees available for such discussion promptly after receiving notice thereof. The Lessor shall not have any duty to make any such inspection or conduct any such discussion and shall not incur any liability or obligation for not making any such inspection or for not conducting any such discussion.

SECTION 13. Payment of Impositions; Further Assurances.

(a) Subject to the provisions of Section 16 hereof, the Lessee will pay all Impositions before any fine, penalty, interest or cost may be added for nonpayment, and will furnish to the Lessor, upon request, copies of official receipts or other satisfactory proof evidencing such payment.

(b) The Lessee, at its expense, shall execute, acknowledge and deliver from time to time such further counterparts of this Fuel Lease or such affidavits, certificates, Bills of Sale, financing and continuation statements, consents and other instruments as may be reasonably requested by the Lessor in order

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to evidence the respective interests of the Lessor, the Lessee, any Assignee or any Secured Party in this Fuel Lease and the Nuclear Fuel or any portion thereof and in order to establish the character of the Nuclear Fuel as personal property and the perfected first security interest therein intended to be created by the Trust Indenture, and shall, at its expense, cause to be made any filing, recording or registration in such manner and at such time and in such places as may be required by any present or future law in order to publish notice and perfect the interests of the Lessor, any Assignee or any Secured Party in the Nuclear Fuel, this Fuel Lease or any right or payment thereunder. The Lessee, at its expense, shall take whatever further action, if any, shall be deemed reasonably necessary by the Lessor to confirm the title of the Lessor to the Nuclear Fuel.

SECTION 14. Compliance with Legal and Insurance Requirements and with Instruments.

Subject to the provisions of Section 16 hereof, the Lessee at its expense, will (i) comply with all Legal Requirements and Insurance Requirements, whether or not compliance therewith shall require structural or basic mechanical changes in any or all of the Generating Facilities or the Storage Facilities owned by the Lessee or changes in the design or fabrication of the Nuclear Fuel or any portion thereof, and whether or not such compliance will interfere with the use and enjoyment of any Generating Facility, Storage Facility or Nuclear Fuel or any portion thereof, (ii) procure, maintain and comply with all permits, licenses and other authorizations required for the ownership of the Nuclear Fuel or any portion thereof or any Nuclear Fuel Contract by the Lessor, or for any operation or use of the Nuclear Fuel or any portion thereof then being made, and for the proper maintenance thereof, and for the taking of all necessary and proper steps in the management of the Nuclear Fuel through each stage of the Nuclear Fuel Cycle, and (iii) comply with any other instruments of record or any contract or agreement at the time in force affecting title to or ownership of the Nuclear Fuel or any portion thereof, provided that any changes which are made to comply with Legal Requirements or Insurance Requirements shall be made in a manner to minimize any diminution in the value of the Nuclear Fuel, the Generating Facilities or the Storage Facilities, as the case may be.

SECTION 15. Liens.

The Lessee will not directly or indirectly create or permit to be created or to remain, and will at its expense promptly discharge, any mortgage, lien, encumbrance or charge on, security interest in, or conditional sale or other title retention agreement with respect to, the Nuclear Fuel or any portion thereof, or any rights under any Nuclear Fuel Contract, or upon the Lessee's leasehold interest therein or in any sublease thereof, other than (i) liens for Impositions not yet payable, or payable without the

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addition of any fine, penalty, interest or cost for nonpayment, or being contested as permitted by Section 16 hereof, (ii) liens, charges or encumbrances resulting from acts of the Lessor or securing obligations of the Lessor which the Lessee is not obligated to pay or discharge under the terms of this Fuel Lease, (iii) liens of mechanics, laborers, materialmen, suppliers or vendors, or rights thereto, incurred in the ordinary course of business for sums for money which under the terms of the related contracts are not at the time due, provided that such reserve or other appropriate provisions, if any, as shall be required by generally accepted accounting principles shall have been made in respect thereof, (iv) any lien or interest granted by virtue of any transaction or use of Nuclear Fuel permitted by Sections 10(c) or 10(e) hereof, (v) liens created or permitted under the Basic Documents or arising from transactions permitted under this Fuel Lease or resulting from the acts of any Assignee or any Secured Party and (vi) rights of the United States or any agency of the United States under any statute or regulation arising from the enrichment of Nuclear Fuel.

SECTION 16. Permitted Contests.

The Lessee at its expense may contest after prior notice to the Lessor, by appropriate legal proceedings conducted in good faith and with due diligence, the amount, validity or application, in whole or in part, of any Imposition or lien therefor, or any Legal Requirement, Insurance Requirement or any other mortgage, lien, encumbrance, charge, security interest, conditional sale or other contract or agreement referred to in Section 15 hereof; provided that (i) in the case of an unpaid Imposition or lien therefor, such proceedings shall suspend the collection thereof from the Lessor, any Assignee or any Secured Party, (ii) neither the Nuclear Fuel nor any portion thereof or interest therein nor any rights under any Nuclear Fuel Contract would be subject to being sold, forfeited, confiscated, condemned or lost, (iii) neither the use of the Nuclear Fuel or any portion thereof, nor the taking of any step necessary or proper with respect thereto in the management thereof through any stage of the Nuclear Fuel Cycle, nor the performance of any other act required to be performed by the Lessee under this Fuel Lease would be subject to being enjoined, prevented or otherwise interfered with, (iv) the Lessor or any Assignee would not be subject to any additional civil liability (other than interest which the Lessee agrees to pay), or any criminal liability, for or caused by failure to pay any such Imposition or to comply with any such Legal Requirement, Insurance Requirement or any such other mortgage, lien, encumbrance, charge, contract or agreement, (v) the Lessee shall have set aside on its books adequate reserves in accordance with generally accepted accounting principles with respect thereto and shall furnish such security, if any, as may be required in the proceedings, (vi) the exercise of any rights or remedies of the Lessor or any Assignee or Secured Party would not be impaired, and (vii) the insurance

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coverage required by Section 17 hereof shall not be diminished in any respect. The Lessee will pay, without limiting its right to request payment by the Lessor of such expenses as provided in Section 6 hereof, and save the Lessor, each Assignee and each Secured Party harmless against, all losses, judgments, decrees and costs, including reasonable attorneys' fees and expenses, in connection with any such contest and will, promptly after the final determination of such contest, pay and discharge the amounts which shall be levied, assessed or imposed or determined to be payable therein, together with all penalties, fines, interest, costs and expenses thereon or in connection therewith. If any tax obligation shall be paid under protest and a refund is granted therefor and delivered to the Lessor, the Lessor shall promptly remit to the Lessee the full amount of the refund so received.

SECTION 17. Insurance.

(a) The Lessee shall, at its own cost and expense, obtain and, except as provided in the following sentence, maintain in effect with respect to the Nuclear Fuel and each Generating Facility and, to the extent available with respect to facilities at the other locations permitted under Section 4(d) hereof at which Nuclear Fuel is located, (i) an agreement or indemnification as required by Section 170 of the Atomic Energy Act or any other law, rule or regulation and (ii) nuclear liability insurance in such form and such amount as will meet the financial protection requirements of the Nuclear Regulatory Commission pursuant to Section 170 of the Atomic Energy Act. If the nuclear liability protection system provided by Section 170 of the Atomic Energy Act is repealed or modified or has expired, the Lessee will, without cost to Lessor, maintain in effect liability protection through government indemnity, limitation of liability or liability insurance in order to minimize impairment of protection afforded Lessor, any Assignee and any Secured Party by Section 170 of the Atomic Energy Act, as in effect on the date hereof, and by the provisions of this Section, but Lessee will not be required to maintain such protection except to the extent customarily maintained by nuclear plant owners. Further, Lessee shall maintain Supplier's and Transporter's Form Nuclear Liability Insurance.

(b) The Lessee shall, at its own cost and expense, procure or cause to be procured and maintain or cause to be maintained "all risk" property damage insurance for the property at any Generating Facility (including Nuclear Fuel at any Generating Facility) insuring the Lessor, Lessee, any Assignee and any Secured Party against loss or damage to such insured property. Such insurance shall be from one or more of Nuclear Mutual Limited (NML), American Nuclear Insurers (ANI) and Mutual Atomic Energy Reinsurance Pool (MAERP), or Nuclear Electric Insurance Limited (NEIL), whichever is selected by the Lessee from time to time, and shall be for the benefit of all named insureds, the Lessee, the Lessor, any Assignee, any Secured Party, any Dealer and any

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Placement Agent. The amounts of such insurance shall be not less than that required by prudent practice in the utility industry, and in any event not less than the amount necessary to comply with 110 CFR 50.54(w) (as such regulation may be amended or replaced by any successor rule or regulations adopted by the Nuclear Regulatory Commission governing the amount of insurance to be maintained). Any such insurance may provide for such deductibles as are available in nuclear property insurance covering property at any Generating Facility (including Nuclear Fuel at any Generating Facility), may include the standard coinsurance provisions contained in a nuclear property insurance policy and may exclude the types of property and certain perils customarily excluded from the standard nuclear property coverage in accordance with prudent practice in the electric utility industry. Otherwise, the terms of the coverage shall be at the discretion of the Lessee.

(c) All insurance described in this Section 17 shall (i) cover the Lessee, the Lessor, any Assignee, any Secured Party, any Dealer and any Placement Agent and (ii) indemnify each to the extent of its respective interest. To the extent possible, the Lessor, any Assignee and any Secured Party shall each, to the extent their respective interest may appear, be an insured and, with respect to physical damage coverage, a named loss payee, in all insurance policies maintained by the Lessee under this Section 17 provided that, so long as no Lease Default or Lease Event of Default shall have occurred and be then continuing, the Lessee shall control the adjustment of any losses with the applicable insurer. If a Lease Default or Lease Event of Default shall have occurred and be then continuing, such loss shall be adjusted by the Lessee and an independent loss adjuster to be appointed by either (i) the Lessor or
(ii) any Assignee. Any loss proceeds and the draft payment thereof will be delivered to the Lessee for transmittal to the Indenture Trustee. To the extent possible, all such policies and, where obtainable, indemnification agreements, shall provide for at least thirty (30) days' written notice to the Lessor, any Assignee and any Secured Party, prior to any cancellation or material alteration of such policies and agreements.

(d) Upon the request of the Lessor, the Lessee will provide the Lessor with insurance certificates in respect of the insurance procured pursuant to the provisions of Section 17(a) and Section 17(b) hereof and will advise the Lessor of all expirations and renewals of policies, all notices issued by the insurers thereunder having a materially adverse effect on coverage and all other changes of the types referred to in Section 20(a)(ii) hereof. On the date hereof and at yearly intervals thereafter during the term of this Fuel Lease, the Lessee will furnish to the Lessor a detailed statement as to the insurance coverage provided pursuant to Section 17(a) and Section 17(b) hereof and will give prompt notice as to any changes in the nature of such coverage including any changes which are materially adverse to the Secured Parties of

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which the Lessee has knowledge in the provisions of the Atomic Energy Act or the regulations of the Nuclear Regulatory Commission with respect to liability insurance and coverage.

SECTION 18. Damage.

(a) If an accident or incident resulting in any damage to, destruction of or malfunction of any or all of the Nuclear Fuel should occur, which damage or destruction is of such a nature as to prevent Heat Production by any Nuclear Fuel, the Lessee will promptly give notice thereof to the Lessor, generally describing such accident or incident and such damage, destruction or malfunction and stating whether Restoration thereof can be completed within twenty-four months after such incident. If such accident or incident affects Nuclear Fuel having an aggregate Net Investment Value (as shown on the most recently delivered Rent Schedule) in excess of eighty-five percent of the aggregate Net Investment Value of all Nuclear Fuel (as shown on such Rent Schedule) and such notice by the Lessee states that Restoration thereof cannot be completed within twenty-four months, the Lessor or any Assignee shall have the right to terminate this Fuel Lease by giving the notice provided for in
Section 20(a)(vii) hereof. If such accident or incident affects some Nuclear Fuel but not an amount having an aggregate Net Investment Value (as shown on the most recently delivered Rent Schedule) in excess of eighty-five percent of the aggregate Net Investment Value of all Nuclear Fuel (as shown on such Rent Schedule) and the Lessee's notice with respect thereto states that Restoration thereof cannot be completed within such twenty-four months, the Lessee, if so requested by the Lessor or any Assignee, shall, within ninety days after such accident or incident, purchase and obtain the release pursuant to Section 10(b) hereof of the Nuclear Fuel affected by such accident or incident. If Lessee shall state in its notice that Restoration can be completed within twenty-four months after such accident or incident, it shall, within ninety days after such accident or incident, commence Restoration and shall complete the same no later than twenty-four months after such accident or incident (subject to Unavoidable Delays, but in no event later than thirty months after such accident or incident), such Restoration to be at the Lessee's own expense and whether or not the insurance proceeds, if any, on account of such damage or destruction shall be sufficient for the purpose.

(b) If an accident or incident resulting in any damage to, destruction of or malfunction of any or all of the Generating Facilities should occur, which damage, destruction or malfunction is of such a nature as to prevent Heat Production at such Generating Facility or Facilities, the Lessee will promptly give notice thereof to the Lessor, generally describing such accident or incident and such damage, destruction or malfunction and stating whether the repair or reconstruction thereof can be completed within twenty-four months after such accident or incident or, if

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such repair or reconstruction cannot be completed within twenty-four months, whether (i) the Nuclear Fuel which was engaged in Heat Production at the Generating Facility or Facilities where such accident or incident occurred can be reassigned within eighteen months after such accident or incident to another Generating Facility and engaged in Heat Production within twenty-four months after the date of such accident or incident and whether (ii) the Nuclear Fuel which was intended to have been engaged in Heat Production at the Generating Facility or Facilities where such accident or incident occurred can be reassigned within eighteen months after such accident or incident to another Generating Facility. If such accident or incident affects ten or more out of the twelve Generating Facilities and such notice by the Lessee states that none of such repair or reconstruction or engagement or reassignment can be completed within the applicable foregoing time periods, the Lessor or any Assignee shall have the right to terminate this Fuel Lease by giving the notice provided for in
Section 20(a)(vii) hereof. If such accident or incident affects some but not ten or more out of the twelve nuclear reactors at the Generating Facilities and the Lessee's notice with respect thereto states that such repair or reconstruction or engagement or reassignment cannot be completed within the applicable foregoing time periods, the Lessee, if so requested by the Lessor or any Assignee, shall, within ninety days after such accident or incident, purchase and obtain the release pursuant to Section 10(b) hereof of the Nuclear Fuel previously engaged in Heat Production at, and if no reassignment can be made the Nuclear Fuel intended to have been engaged in Heat Production at, the Generating Facility or Facilities where such accident or incident occurred. If such accident or incident affects some but not ten or more out of the twelve nuclear reactors at the Generating Facilities and such notice by Lessee states that some of such repair or reconstruction or engagement or reassignment can be completed within the foregoing time periods, the Lessee, if so requested by the Lessor or any Assignee, shall, within ninety days after such accident or incident, purchase and obtain the release pursuant to Section 10(b) hereof of the Nuclear Fuel previously engaged in Heat Production at, or which was intended to have been engaged in Heat Production at, the Generating Facilities, to the extent that such Nuclear Fuel is not assigned, or cannot be reassigned, to a Generating Facility where such repair or reconstruction can be completed within the applicable foregoing time periods (and, in the case of Nuclear Fuel previously in Heat Production, re-engaged in Heat Production within the applicable foregoing time periods). If Lessee shall state in its notice that repair or reconstruction or engagement or reassignment can be completed within the applicable foregoing time periods after such accident or incident, it shall, within ninety days after such accident or incident, commence such repair or reconstruction or engagement or reassignment and shall complete the same no later than the applicable foregoing time periods after such accident or incident (subject to Unavoidable Delays, but in no event later than thirty months after such accident or incident),

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such repair or reconstruction or engagement or reassignment to be at the Lessee's own expense and whether or not the insurance proceeds, if any, on account of such damage, destruction or malfunction shall be sufficient for the purpose. Any such written notice that repair or reconstruction can be so completed shall be deemed a representation by the Lessee to that effect. If at any time during said twenty-four month period such representation could not be reaffirmed (subject to Unavoidable Delays), the Lessee shall promptly so notify the Lessor and each Assignee and upon such notification the Lessor or any Assignee may (i) terminate this Fuel Lease in accordance with Section 20(a)(vii) hereof if the accident or incident and the inability to repair or reconstruct affects ten or more out of the twelve nuclear reactors at the Generating Facilities or (ii) upon notice from the Lessor to the Lessee to that effect, require the Lessee to purchase and obtain the release pursuant to Section 10(b) hereof of the Nuclear Fuel previously engaged in Heat Production at, or intended to be engaged in Heat Production within twenty-four months of the accident or incident at, the Generating Facility or Facilities where such accident or incident occurred, and not reassigned as contemplated by this section.

(c) All insurance proceeds receivable on account of any damage to or destruction of Nuclear Fuel shall be paid to the Collateral Account. If, notwithstanding the foregoing, any insurance proceeds are received by the Lessee or the Lessor on account of any damage to or destruction of Nuclear Fuel, such insurance proceeds, shall be paid over to the Collateral Account as soon as is reasonably practicable. Such proceeds shall be disbursed from the Collateral Account, in accordance with the provisions, and subject to the restrictions, of the Trust Indenture, to the Lessee to reimburse it for any repair or restoration costs it incurs in repairing and/or restoring any such damaged or destroyed Nuclear fuel, provided that no Termination Event has occurred and no Lease Default or Lease Event of Default has occurred and is continuing.

SECTION 19. Condemnation or Eminent Domain.

(a) In case of a Taking or the commencement of any proceedings or negotiations which might result in any Taking, the Lessee will promptly give notice thereof to the Lessor, generally describing the nature and extent of such Taking or the nature of such proceedings or negotiations and the nature and extent of the Taking which might result therefrom, as the case may be. The Lessee hereby assigns to the Lessor any award or payment on account of any Taking of the Nuclear Fuel or any portion thereof which is payable to the Lessee, and any such award or payment shall be paid into the Collateral Account. The Lessor and any Assignee shall have the right to participate fully in any proceedings or negotiations in connection with any such Taking of the Nuclear Fuel or any portion thereof, provided that Lessee shall be entitled to

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control such proceedings or negotiations so long as no Lease Default or Lease Event of Default shall have occurred and be then continuing. If a Lease Default or a Lease Event of Default shall have occurred and be then continuing, the Indenture Trustee shall be entitled to control such proceedings or negotiations. The Lessee will pay (without limiting its right, if any, to request payment by the Lessor of such expenses as provided in Section 6 hereof if such expense is of a capital nature) all costs, fees and expenses incurred by the Lessor or any Assignee in connection with any Taking of the Nuclear Fuel or any portion thereof and seeking and obtaining any award or payment on account thereof.

(b) In the case of any Taking, (i) the provisions of this Fuel Lease shall remain in effect, except as expressly provided below in this Section 19, without any abatement or reduction of Basic Rent, Additional Rent or any other sum payable hereunder, (ii) if the Taking is of a Generating Facility, the Lessee shall either purchase the Nuclear Fuel which is used or intended for use in the Generating Facility or reassign it to another Generating Facility within six months from the date of such Taking, and (iii) if the Taking is of Nuclear Fuel, unless the Lessee shall have exercised within ninety days after the happening of such Taking its right to purchase and obtain a release of Nuclear Fuel or portion thereof pursuant to Section 10(b) hereof, the Lessee, whether or not the awards or payments, if any, on account of such Taking shall be sufficient for the purpose, at its cost and expense (without limiting the Lessee's right, if any, to request payment by the Lessor of such expenses provided in Section 6 hereof if such expenses are of a capital nature) will promptly commence and complete (subject to Unavoidable Delays) Restoration of the Nuclear Fuel or the portion, if any, thereof affected by such Taking, unless the Lessee shall have delivered to the Lessor the certificate described in
Section 20(a)(i) hereof within ninety days after the happening of such Taking. Upon completion of Restoration, the Lessee shall execute and deliver to the Lessor a Fuel Schedule, shall cause the relevant Manufacturer of the replacement Nuclear Fuel to execute and deliver to the Lessor a Bill of a Sale substantially in the form of Schedule C hereto, unless the Nuclear Fuel Contract provides for the transfer of title to the Lessor without execution and delivery by the relevant Manufacturer of a bill of sale, and shall deliver to the Lessor a duly executed Bill of Sale substantially in the form of Schedule C hereto describing any portion of the Nuclear Fuel to which the Lessee has or receives title; and the Lessor shall accept such Bill or Bills of Sale. As to any condemned or requisitioned (or otherwise taken) Nuclear Fuel originally included on Schedule A hereto, as amended, and replaced by such Restoration, the Lessor shall deliver to the Lessee a Fuel Schedule and a Bill of Sale substantially in the form of Schedule E hereto. If Restoration is not completed within thirty months after such Taking, the Lessee shall, within 30 days thereafter, purchase and obtain a release of such Nuclear Fuel pursuant to Section 10(b) hereof (the purchase

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price of any such Nuclear Fuel to be the price specified under said Section 10(b) less any award or payment paid in respect thereof to the Collateral Account).

(c) All awards and payment received by the Lessor on account of any Taking of the Nuclear Fuel or any portion thereof (less the actual costs, fees and expenses incurred in the collection thereof, for which the Person incurring the same shall be reimbursed from such awards or payments) shall be paid over to the Collateral Account. Such awards or payment shall be disbursed from the Collateral Account, in accordance with the provisions, and subject to the restrictions, of the Trust Indenture, to the Lessee to reimburse it for any repair or restoration costs it incurs, provided that no Termination Event has occurred and no Lease Default or Lease Event of Default has occurred and is continuing.

(d) For purposes of this Fuel Lease, all amounts paid pursuant to any agreement with any condemning authority which has been made in connection with any Taking shall be deemed to constitute an award on account of such Taking.

SECTION 20. Termination After Certain Events.

(a) This Fuel Lease shall terminate in the manner and with the effect hereinafter set forth in Section 20(b) and Section 21(b) upon the happening of any of the following events (referred to herein as "TERMINATION EVENTS"):

(i) The Lessee shall have given the Lessor five days' notice in the form of a certificate signed by its President or any Vice President or its Treasurer, stating that the Lessee desires to terminate this Fuel Lease, provided at the time of termination, the Lessor has the right and available funds to pay all Obligations (including any prepayment premium in connection therewith);

(ii) The Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that it desires that this Fuel Lease be terminated because of (A) changes made (whether by legislative act or published administrative or judicial determination) in the provisions of the Atomic Energy Act or any other applicable law, rule or regulation with respect to liability insurance, limitation of liability, or indemnification or the application, interpretation or enforcement thereof, or (B) any material adverse change in the insurers, coverage, or the terms or scope of any insurance policy or indemnity agreement required to be obtained and maintained by the Lessee pursuant to Section 17 hereof;

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(iii) If, as a result of the transactions contemplated by this Fuel Lease, the Lessor, any Assignee or any Secured Party becomes (or with the passage of time would become), or is declared by the Securities and Exchange Commission (or any successor governmental entity having jurisdiction to make such declaration) to be, an "electric utility company," a "gas utility company," a "public utility" or similar entity under the Public Utility Holding Company Act of 1935, as amended, or its respective officers, directors, shareholders, partners or employees shall become subject to regulation under such Act, and, in any such event, the Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that it desires that this Fuel Lease be terminated;

(iv) If, as a result of the transactions contemplated by this Fuel Lease, the Lessor, any Assignee or any Secured Party becomes (or with the passage of time would become), or is declared by the Secretary of Energy or the Federal Energy Regulatory Commission or a successor entity to be, a "public utility" or a similar entity under the Federal Power Act, as amended, or its respective officers, directors, shareholders, partners or employees shall become subject to regulation under such Act and, in any such event, the Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that it desires that this Fuel Lease be terminated;

(v) If, as a result of the transactions contemplated by this Fuel Lease, the Lessor, any Assignee or any Secured Party becomes (or with the passage of time would become), or is declared by any relevant regulatory government body to be, a "public utility" or similar entity under the laws of any State or its respective officers, directors, shareholders, partners or employees shall become subject to regulation under any such laws, and, in any such event, the Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that it desires that this Fuel Lease be terminated;

(vi) Any law or regulation or interpretation of any law or regulation shall be adopted and be enforceable by any governmental or regulatory authority (including, without limitation, the Secretary of Energy, the Federal Energy Regulatory Commission, the Illinois Commerce Commission, the Securities and Exchange Commission, the

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Nuclear Regulatory Commission and the New York Stock Exchange), and as a result of such adoption or enforcement, approval of the transactions contemplated by this Fuel Lease shall be required and shall not have been obtained within any grace period after such adoption or enforcement, or as a result of which adoption or enforcement of this Fuel Lease or any transaction contemplated hereby, including any payments to be made by the Lessee or the ownership of the Nuclear Fuel by the Lessor, shall be or become unlawful or unenforceable or the performance of this Fuel Lease shall be rendered impracticable in any material way, and, in any such event, the Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that the Lessor desires that this Fuel Lease be terminated;

(vii) If an accident or incident described in Section 18 hereof, which prevents Heat Production, involving Nuclear Fuel having an aggregate Net Investment Value (as shown on the most recently delivered Rent Schedule) in excess of eighty-five percent of the aggregate Net Investment Value of all Nuclear Fuel (as shown on such Rent Schedule) or involving ten or more out of the twelve Generating Facilities, shall have occurred and (A) Lessee shall have stated in its notice required under Section 18 with respect thereto that repair or reconstruction or relocation and engagement or reassignment or Restoration as provided therein cannot be completed within twenty-four months after such accident or incident; or (B) such repair or reconstruction or relocation and engagement or reassignment or Restoration as provided in Section 18 hereof shall not have been completed within twenty-four months after such accident or incident (subject to Unavoidable Delays, but in no event later than thirty months after such accident or incident) and, in either such event, the Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that the Lessor desires that this Fuel Lease be terminated;

(viii) If any governmental licenses, approvals or consents with respect to any Generating Facility, without which such Generating Facility cannot continue to operate, shall have been revoked, withdrawn or withheld, or an order, injunction or other directive shall be issued enjoining the operation of any Generating Facility or materially impairing the use of Nuclear Fuel or any Generating Facility as contemplated by this Lease, and

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(A) the Lessee does not, in good faith, within 180 days of such event, either (i) represent in writing to the Lessor that the Lessee has made a good faith determination that such Generating Facility will return to operation within twenty-four months of such revocation, withdrawal, withholding, order, injunction or directive (subject to Unavoidable Delays) or (ii) purchase and obtain the release pursuant to Section 10(b) hereof of all the Nuclear Fuel located in, or intended to be used at, such Generating Facility other than that portion of such Nuclear Fuel which the Lessee in good faith represents in writing to the Lessor will be reassigned to another Generating Facility or Facilities, or (B) after the Lessee has delivered the representation referred to in clause (A)(i) above, at any time during such twenty-four month period (subject to Unavoidable Delays) said representation could not be reaffirmed and Lessee does not, within 90 days of such inability to reaffirm, purchase and obtain the release pursuant to Section 10(b) hereof of all the Nuclear Fuel then located in, or intended to be used at, such Generating Facility, or (C) after Lessee has delivered the representation referred to in clause (A)(i) above, within such twenty-four month period (subject to Unavoidable Delays), such Generating Facility is not, in fact, returned to operation and Lessee does not, on or before the expiration of such period, purchase and obtain the release pursuant to Section 10(b) hereof of all the Nuclear Fuel then located in, or intended to be used at, such Generating Facility; and, in such event, the Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that the Lessor desires that this Fuel Lease be terminated;

(ix) If a nuclear incident (as that term is defined in the Atomic Energy Act) involving or connected in any way with any of the Nuclear Fuel or any of the Generating Facilities shall have occurred, and such nuclear incident may reasonably be expected to give rise to liability of the Lessee in an aggregate amount in excess of $20,000,000 above that covered by insurance, and, in such event, the Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that the Lessor desires that this Fuel Lease be terminated;

(x) The Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given

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notice to the Lessee stating that it desires that this Fuel Lease be terminated because ten or more of the twelve nuclear reactors at the Generating Facilities have been continuously out of operation for a period of twenty-four months or more;

(xi) The Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that it desires that this Fuel Lease be terminated because an event or condition not mentioned above in this Section 20(a) or in Section 25(a) has occurred, resulting in the inability of the Lessor to pay any Indebtedness; or

(xii) The Lessor, at the direction of the Indenture Trustee as directed by the Designated Holders pursuant to the provisions of the Trust Indenture, shall have given notice to the Lessee stating that it desires that this Fuel Lease be terminated because any pension plan covered by Title IV of ERISA maintained by the Lessee or any subsidiary of the Lessee has been terminated, and the value of plan benefits guaranteeable under Title IV of ERISA on the date of such termination exceeds the value of plan assets allocable to such benefits on such date by more than $25,000,000.

(b) Upon the date of occurrence of any of the events listed in Section 20(a) hereof (the first such date being herein called the "TERMINATION NOTICE DATE"), this Fuel Lease shall cease and terminate, except with respect to obligations and liabilities of the Lessee, actual or contingent, which arose under this Fuel Lease on or prior to the Termination Notice Date and except for the Lessee's obligations set forth in Section 5, 7, 9, 10(b), 13, 14 and 17 hereof, and in this Section 20(b), all of which obligations will continue until the delivery of documentation by the Lessor and the payment by the Lessee provided for below, and except that Lessee's obligations under Section 11 hereof shall continue as set forth therein, and forthwith also upon such termination, title to, and the entire interest of the Lessor in the Nuclear Fuel shall automatically transfer to and be vested in the Lessee, without the necessity of any action by either the Lessor or the Lessee, but subject to any liens and security interests of any Assignee or Secured Party under the Trust Indenture; provided, however, that title to, and the entire interest of the Lessor in, the Nuclear Fuel shall, forthwith upon such termination, automatically transfer to and be vested in any Person designated by the Lessee, but subject to any liens and security interests of any Assignee or Secured Party, rather than transferring to and being vested in the Lessee as aforesaid, if but only if (i) such Person shall, upon such termination, be lawfully entitled to accept and be vested with title to the Nuclear Fuel, and (ii) prior to such termination, such

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Person shall have delivered an instrument to the Lessor, in form and substance satisfactory to it, executed and acknowledged by such Person and by the Lessee, pursuant to which such Person shall irrevocably (1) undertake to accept title to, and the entire interest of the Lessor in, that Nuclear Fuel forthwith upon such termination, (2) agree that the transfer to and the vesting in such Person of such title and interest shall occur automatically upon such termination without the necessity of any action by either the Lessor or the Lessee or such person, and (3) undertake to execute, upon such termination, the instrument referred to below in this Section 20(b) acknowledging, among other things, that title to and ownership of the Nuclear Fuel has transferred to and vested in such Person. As soon as possible after either the Lessor or the Lessee shall learn of the happening of any of the events listed in Section 20(a) hereof, such party shall give notice thereof to the other party hereto (and in the case of such notice to the Lessor, signed also by such other Person in whom title to the Nuclear Fuel shall have vested as aforesaid), which notice shall (x) acknowledge that this Fuel Lease has terminated, subject to the continuing obligations of the Lessee mentioned above and the rights of any secured party under any security agreement, and that title to and ownership of the Nuclear Fuel has transferred to and vested in the Lessee or such other Person, as the case may be, subject as aforesaid, (y) state that on a settlement date determined by the Lessee occurring not less than 30 or nor more than 270 days after the giving of such notice, which settlement date shall be specified therein (such date being herein called the "TERMINATION SETTLEMENT DATE"), the Lessee shall be obligated as of the Termination Notice Date to pay to the Lessor as the purchase price of the Nuclear Fuel, which payment obligation shall be unconditional as provided in
Section 5(h) hereof, and without regard to the voidability, validity, legality or enforceability of the Lessor's obligations under the Basic Documents an amount equal to the sum of (i) the Net Investment Value of the Nuclear Fuel as of the Termination Settlement Date plus (ii) the Termination Rent on the Termination Settlement Date, and (z) state that on the Termination Settlement Date, the Lessor shall deliver to the Lessee both a confirmatory Bill of Sale acknowledging the above-described transfer and vesting of title and ownership of the Nuclear Fuel, and appropriate instruments duly executed by any Assignees or Secured Parties (but only to the extent such documents are furnished by such Assignees or Secured Parties), cancelling and discharging any liens and security interests created thereunder upon the Nuclear Fuel. Should an obligation of the Lessee which would have been includable in Termination Rent if it had been known or the amount thereof determinable on the Termination Settlement Date become known or determined subsequent to the Termination Settlement Date, the Lessee agrees to pay, which payment obligation shall be unconditional as provided in
Section 5(h) hereof, such amount to the Lessor upon ten Business Days' notice thereof as an additional item of Termination Rent. The Lessor and the Lessee shall be unconditionally obligated as of the Termination Notice Date to make

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the payments and to deliver the documentation referred to therein on such Termination Settlement Date to the same extent as if each had acknowledged in writing its obligation to do so, Lessee's obligation to make such payment shall be unconditional as provided in Section 5(h) hereof, and unaffected by any event or matter whatsoever including, without limitation, failure of Lessor to deliver such confirmatory documentation on the Termination Settlement Date or the quality, condition, existence, utility or title of or to the Nuclear Fuel or any failure to have obtained or then have in effect authorizations of governmental authorities on the part of the Lessee and without regard to the voidability, validity, legality or enforceability of the Lessor's obligations under the Basic Documents, and the Lessee's obligation to make such payment shall not be discharged except by payment in full as herein provided. Any such payment made by the Lessee shall not prejudice, or constitute a waiver of, any right, claim or cause of action which the Lessee shall have against the Lessor. Such payment and delivery of documentation shall be made in accordance with Section 21 hereof.

SECTION 21. Conditions of Termination and Conveyance.

(a) Upon the purchase by the Lessee pursuant to this Fuel Lease of the Lessor's interest in the Nuclear Fuel or any portion thereof or of the Lessor's interest in any insurance proceeds or condemnation awards (or the right to receive the same) which the Lessee is entitled to receive in connection with any such purchase by it or a transfer of title to the Nuclear Fuel to the Lessee or any other Person designated by the Lessee pursuant to Section 20 hereof, the Lessor will transfer all of Lessor's right, title and interest therein, and the Lessee or such Person, as the case may be, shall accept the same subject to all liens, encumbrances, charges, exceptions and restrictions thereon, and to all applicable laws, regulations and ordinances and otherwise without representation and warranty by or recourse to the Lessor.

(b) Upon the Termination Settlement Date specified in the notice delivered by the Lessor or the Lessee pursuant to Section 20 hereof, the Lessee shall pay to the Lessor at its address for purposes of notices hereunder or to such other Person at such other place designated by the Lessor, in federal funds, the purchase price specified herein for, and the Lessor shall deliver to the Lessee a confirmatory Bill of Sale acknowledging the transfer and vesting of ownership of, the Nuclear Fuel and use its best efforts to obtain an appropriate instrument duly executed by any Assignee or Secured Party, cancelling and discharging any security agreements entered into by the Lessor and any liens and security interests created thereby upon the Nuclear Fuel. The Lessee shall pay all expenses in connection with such transfer, including all escrow fees, search and recording and filing fees, attorneys' fees and all applicable federal, state and local sales, use and other taxes which may be incurred or imposed by reason of

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the transfer then being made by the Lessor, or by reason of the delivery of said instrument or instruments of transfer, cancellation and discharge.

(c) Notwithstanding any other provisions of this Fuel Lease, whenever the Lessee has the right or obligation to purchase the Nuclear Fuel or any portion thereof or any other property pursuant to any provision of this Fuel Lease (other than Section 20(b)), the Lessee may cause such purchase to be effected by, and the Lessor shall transfer title and ownership to the subject matter of such purchase to, any other Person lawfully entitled to receive the same, as specified by the Lessee in a notice to the Lessor given at least fifteen days prior to the date of such purchase, provided, however, that nothing specified in this subsection (c) shall in any way impair or affect the obligations of the Lessee under this Fuel Lease in connection with such purchase and provided, further, that, at the time of any such transfer to such other Person, the Lessee shall deliver to the Lessor the undertaking of the Lessee indemnifying and holding Lessor harmless from and against any loss or liability incurred by the Lessor by reason of such transfer.

SECTION 22. Estoppel Certificates; Information.

The Lessee will from time to time deliver to the Lessor, promptly upon reasonable request, (i) a statement, executed by any Vice-President or the Treasurer of the Lessee, certifying the dates to which the Basic Rent, Additional Rent and other sums payable hereunder have been paid, that this Fuel Lease is unmodified and in full effect (or, if there have been modifications, that this Fuel Lease is in full effect as modified, and identifying such modifications) and that no Lease Default or Lease Event of Default has occurred and is continuing (or, if any Lease Default or Lease Event of Default has occurred and is continuing, specifying the nature and period of existence thereof and what action the Lessee is taking or proposes to take with respect thereto), and (ii) such information with respect to the Nuclear Fuel or any portion thereof, including the amounts of Net Investment Value of the Nuclear Fuel or portions thereof in accordance with the Lessee's records, as from time to time may reasonable be requested, it being intended that any such statement delivered pursuant to this Section 22 shall be deemed a representation and warranty by Lessee and may be relied upon by the Lessor and any Assignee.

SECTION 23. Rights to Perform the Lessee's Covenants.

If the Lessee shall fail to make any payment or perform any act required to be made or performed by it hereunder, the Lessor, without notice to or demand upon the Lessee and without waiving or releasing any obligation or default, may (but shall be under no obligation to) at any time thereafter make such payment or perform such act for the account and at the expense of the Lessee.

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All payments so made by the Lessor and all costs and expenses (including, without limitation, reasonable attorneys' fees and expenses) incurred in connection therewith or in connection with the performance by the Lessor of any such act shall constitute Additional Rent hereunder and the Lessee agrees to pay the same as provided in Section 5 hereof.

SECTION 24. Assignments.

(a) The Lessor may, with the written consent of the Lessee, grant a security interest in or an assignment of all or part of its right, title and interest in this Fuel Lease to any Assignee or Assignees and grant a security interest in the Nuclear Fuel pursuant to a Trust Indenture. No Assignee shall have any liability hereunder or be obligated to perform any duty, covenant or condition required to be performed by the Lessor under any of the terms hereof, and the Lessee by its execution hereof acknowledges and agrees that notwithstanding any such grant or assignment each and all such duties, covenants or conditions required to be performed by the Lessor shall survive any such assignment and any such grant of a security interest and shall be and remain the sole liability of the Lessor. Upon any such assignment by the Lessor, such Assignee or Assignees shall succeed to all of the rights, privileges and powers of the Lessor provided in this Fuel Lease as to such right, title or interest so assigned.

(b) The Lessee hereby consents to the security interest and other rights and interests granted to the Indenture Trustee in the Trust Indenture, dated as of the date first above written.

(c) Except as provided in Section 10(e) hereof, Lessee may not sublease any of the Nuclear Fuel and may not assign any of its rights under this Fuel Lease without, in either case, the prior written consent of the Lessor and the Indenture Trustee.

(d) The Lessor hereby agrees that the Lessee may sell or transfer any tax benefits related to the Nuclear Fuel to a third party; provided, however, that no such sale or transfer shall limit or affect any of the Lessee's obligations or the Lessor's rights hereunder (except for the Lessor's rights, if any, in the tax benefits so transferred). The Lessor agrees to cooperate with the Lessee, and to execute such documents and instruments as may be reasonably required, in effectuating any such sale or transfer; provided, however, that the Lessor shall not be required to take any action or give any consent which could adversely affect its rights in the event of a Lease Event of Default.

SECTION 25. Lease Events of Default and Remedies.

(a) Any of the following events of default by the Lessee shall constitute a "LEASE EVENT OF DEFAULT" and give rise to the

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rights on the part of the Lessor described in Section 25(b) hereof:

(i) default in the payment of Basic Rent, Additional Rent, payments required by Section 10(b) hereof, payments required on the Termination Settlement Date or the payment of other amounts hereunder when due and payable, and continuance of such default to pay such other amounts for a period of ten days; or

(ii) failure to perform or observe any of the obligations or covenants of the Lessee under Sections 14, 17 and 20(b) hereof, or failure to purchase and obtain the release of any Nuclear Fuel under Section 10(b) hereof when required by Sections 10(b), 18(a), 18(b) or 19(b) hereof;

(iii) default in the performance, or the breach, of any covenant, obligation or warranty of the Lessee in this Fuel Lease (other than a covenant or warranty a default in whose performance or whose breach is elsewhere in this Section 25 specifically dealt with) or in any other Basic Document to which the Lessee is a party, and continuance of such default or breach for a period of thirty days after there has been given, by registered or certified mail, to the Lessee by the Lessor, a written notice specifying such default or breach and requiring it to be remedied; or

(iv) the entry of a decree or order by a court having jurisdiction in the premises adjudging the Lessee a bankrupt or insolvent, or approving as properly filed a petition seeking reorganization, arrangement, adjustment or composition of or in respect of the Lessee under the United States Bankruptcy Code or any other applicable federal or state law, or appointing a receiver, liquidator, assignee, trustee, sequestrator (or other similar official) of the Lessee or of any substantial part of its property, or ordering the winding up or liquidation of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of forty- five consecutive days; or

(v) the institution by the Lessee of proceedings to be adjudicated a bankrupt or insolvent, or the consent by it to the institution of bankruptcy or insolvency proceedings against it, or the filing by it of a petition or answer or consent seeking reorganization or relief under the United States Bankruptcy Code or any other applicable federal or state law, or the consent by it to the filing of any such petition or the appointment of a receiver, liquidator, assignee, trustee, sequestrator (or

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other similar official) of the Lessee or of any substantial part of its property, or the making by it of an assignment for the benefit of creditors, or the admission by it in writing of its inability to pay its debts generally as they become due, or the taking of corporate action by the Lessee in furtherance of any such action; or

(vi) any representation or warranty made by the Lessee in this Fuel Lease, the Consent and Agreement, any other Basic Document to which the Lessee is a party or in any related instrument, or in any report, certificate, financial statement or other instrument furnished in connection with this Fuel Lease or any other Basic Document to which Lessee is a party shall prove to be false or misleading in any material respect; or

(vii) Lessee shall, without the consent of the Designated Holders, merge with or into, or consolidate with or into, any other corporation or entity, or sell, transfer or otherwise dispose of all or substantially all of its assets, unless in each case, after giving effect to such merger, consolidation, sale, transfer or disposition:

(1) no Credit Agreement Event of Default, Trust Indenture Event of Default, Lease Event of Default or Termination Event, or event that with notice or lapse of time or both would constitute a Credit Agreement Event of Default, Trust Indenture Event of Default, Lease Event of Default or Termination Event shall have occurred and be continuing,

(2) such transaction does not materially and adversely affect the Lessee's (or its successor's) ability to perform its obligations under the Basic Documents, including this Fuel Lease,

(3) the successor or transferee is a domestic corporation, substantially all of whose assets are located in the United States and assumes the obligations of the Lessee under the Basic Documents in a manner and pursuant to a written instrument satisfactory to the Designated Holders in their sole discretion, and

(4) the net worth of such successor or transferee, after giving effect to such transaction, is not less than the net worth of

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the Lessee immediately prior to such transaction;

provided, that the foregoing shall not prohibit the Lessee from forming and, pursuant to a merger, consolidation or other transaction, becoming a subsidiary of a holding company in accordance with all applicable laws, so long as the aggregate amount of all assets (including subsidiary stock) proposed to be transferred or disposed of by the Lessee in connection with such transaction or any series of related transactions does not exceed 10% of the Lessee's consolidated assets immediately prior to such transaction or series of related transactions;

(viii) Lessee shall fail to pay any of its Indebtedness for Borrowed Money which is outstanding in a principal amount of at least $20,000,000 in the aggregate when due (whether by scheduled maturity, required prepayment, acceleration, demand or otherwise) and such failure shall continue after the applicable grace period, if any, specified in any agreement or instrument relating to such indebtedness; or any other default under any agreement or instrument relating to any such indebtedness, or any other event or condition shall occur and shall continue after the applicable grace period, if any, specified in such agreement or instrument, if the effect of such default or event is to accelerate or to permit the acceleration of the maturity of such indebtedness; or any such indebtedness shall be declared to be due and payable, or required to be prepaid (other than by a regularly scheduled required prepayment) prior to the stated maturity thereof;

(ix) occurrence of a Credit Agreement Event of Default or a Trust Indenture Event of Default; or

(x) the failure of any Bank to honor a draft under its Letter of Credit or to make any Loan which it is obligated to make under the Credit Agreement.

(b) Upon the occurrence of any Lease Event of Default, the Lessor may in its discretion do any one or more of the following:

(i) treat the Lease Event of Default as an event under Section 20(a) hereof, entitling Lessor to the consequent benefits of Section 20(b) hereof and in general proceed by appropriate judicial proceedings, either at law or in equity, to enforce performance or observance by the Lessee of the applicable provisions of

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this Fuel Lease, or to recover damages for the breach of any thereof; or

(ii) by notice to the Lessee terminate this Fuel Lease, provided, however, that in the case of a Lease Event of Default under Section 25(iv) or (v), this Fuel Lease shall automatically terminate without such notice. Upon such termination of this Fuel Lease, the Lessee's interest and all right of the Lessee and Persons claiming through or under the Lessee to the use of the Nuclear Fuel shall forthwith terminate but the Lessee shall remain liable for its obligations and liabilities, actual or contingent, with respect to (i) the Lessee's obligations set forth under Section 11 hereof, (ii) obligations or liabilities which arose under this Fuel Lease on or prior to the date of such termination, (iii) the Lessee's obligations set forth in this Section 25(b)(ii), and (iv) until the earlier of (a) Lessor's taking possession of the Nuclear Fuel or Lessee's delivering the Nuclear Fuel as set forth below or (b) final and uncontested payment of the amounts referred to in (A) and (B) below, the Lessee's obligations set forth in Sections 7, 9, 13, 14 and 17; and upon such termination the Lessor shall have the immediate right of possession of the Nuclear Fuel (to the extent not prohibited by law) and the right, at the Lessor's election, either to enter any Generating Facility or any other premises of the Lessee where the Nuclear Fuel or any portion thereof is located and remove the Nuclear Fuel or such portion thereof there located (to the extent not prohibited by law) or cause the same to be done by any Person entitled by law so to do, in which case the Lessor shall not be responsible for any damage to any Generating Facility or such premises, except for damage resulting from the Lessor's gross negligence or wilful misconduct (the Lessee hereby agreeing to indemnify and hold the Lessor harmless from all losses and liabilities in respect of any such damage to any Generating Facility, such premises or the Nuclear Fuel or injury to the Lessor's, the Lessee's or such other Person's employees sustained in the course of such removal, except any such damage resulting from the Lessor's gross negligence or willful misconduct, provided that the Lessee hereby further agrees that the gross negligence or willful misconduct of any Assignee or any Secured Party shall not be imputed to the Lessor), or to require the Lessee, at the Lessee's expense, to assemble the Nuclear Fuel in appropriate cooling or other Storage Facility and, whether or not such storage is requested by Lessor, Lessor may also require the Lessee, at the Lessee's expense, to deliver the Nuclear Fuel or any portion thereof, properly containerized and insulated for

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shipping at any Generating Facility or Storage Facility and consigned to a Person specified by the Lessor and licensed to receive such Nuclear Fuel, in which case the risk of loss shall be upon the Lessee until such delivery is made; and the Lessor may thenceforth hold, possess and enjoy the Nuclear Fuel (to the extent not prohibited by law) and may sell the Lessor's interest in the Nuclear Fuel or any portion thereof upon any terms deemed satisfactory to the Lessor, free from any rights of the Lessee and any Person claiming through or under the Lessee; but the Lessor shall, nevertheless, have the right to recover forthwith from the Lessee:

(A) any and all Basic Rent, Additional Rent and all other amounts payable by the Lessee hereunder which may be due and unpaid immediately prior to such termination or which may then be accrued and unpaid, which obligation to pay shall be unconditional as provided in
Section 5(h) hereof; and

(B) as liquidated damages for loss of the bargain and not as a penalty, an amount equal to the excess of (x) the sum of (i) the Net Investment Value of the Nuclear Fuel as of the date of such termination of this Fuel Lease plus (ii) the Termination Rent, over
(y) the Net Investment Value of the Nuclear Fuel, if the Lessor chooses to hold and not sell the Nuclear Fuel, or the amount, if any, realized by the Lessor in a sale of the Nuclear Fuel (at which the Lessor may be a purchaser), without set-off or reduction thereof other than a deduction from the sale price of all the costs of such sale, including legal fees, commissions, sales taxes and other customary charges; provided, however, that it is understood that the Lessor, any Assignee and any Secured Party shall have no obligation to conduct any such sale, and that the Lessor may, in lieu of conducting such sale, transfer and convey title to, and its entire ownership interest in, the Nuclear Fuel to the Lessee or any trustee or liquidator therefor upon the terms and conditions set forth in Section 21 hereof (in which case the amount in clause (y) above shall be zero), but that, if the Lessor conducts such sale, the Nuclear Fuel may be sold free and clear of all rights of the Lessee; and

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(C) any and all other damages and expenses (including, without limitation, reasonable attorneys' fees and expenses) without set-off, reduction or counterclaim, which the Lessor shall have sustained by reason of the breach of any provision of this Fuel Lease.

The Lessee hereby waives, to the full extent not prohibited by law, any right it may now or hereafter have to require the sale, in mitigation of damages, of the Nuclear Fuel or any portion thereof consequent to a Lease Event of Default. Lessee hereby agrees that its obligations to make payments pursuant to this Section 25(b) shall be absolute and unconditional as provided in Section 5(h) hereof.

(c) The remedies herein provided in favor of the Lessor, any Assignee and any Secured Party in case of a Lease Event of Default as hereinabove set forth shall not be deemed to be exclusive, but shall be cumulative and shall be in addition to all other remedies in its favor existing at law, in equity or in bankruptcy.

SECTION 26. Surrender; Acceptance of Surrender.

Subject always to the rights of the Lessee to obtain a release of any portion of the Nuclear Fuel pursuant to Section 10(b) and acquire title thereto and the right of the Lessee to acquire title to the Nuclear Fuel in the events and on the terms and conditions set forth in Section 20, upon the expiration or earlier termination of this Fuel Lease, the Lessee shall surrender the Nuclear Fuel to the Lessor or its designee in the same condition in which the various portions thereof existed on the respective dates when such portions first became subject to this Fuel Lease, except as repaired, replaced or added to, as permitted by any provisions of this Fuel Lease, and except for the loss or reduction of heat production capacity and other changes caused by the Fuel Management through the Nuclear Fuel Cycle. The Lessee shall, at its expense and upon request of the Lessor, remove the Nuclear Fuel or any portion thereof so requested from the lands upon which the same is situated at the expiration or termination of the term hereof, and deliver the Nuclear Fuel or such portions thereof so requested, properly containerized and insulated for shipping, at any Generating Facility or Storage Facility where it is located and consigned to a Person specified by the Lessor and licensed to receive such Nuclear Fuel. No surrender of this Fuel Lease or of the Nuclear Fuel or any portion thereof or of any interest therein shall be valid or effective unless agreed to and accepted in writing by the Lessor, and no act by any representative or agent of the Lessor, and no act by the Lessor, other than such agreement and acceptance by the Lessor, shall constitute an acceptance of any such surrender.

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SECTION 27. No Merger.

There shall be no merger of this Fuel Lease or of the leasehold interest created by this Fuel Lease with the absolute ownership interest in the Nuclear Fuel or any portion thereof by reason of the fact that the same person, firm, corporation or other entity may acquire or own or hold, directly or indirectly, (i) this Fuel Lease or the leasehold interest created by this Fuel Lease or any interest in this Fuel Lease or in any such leasehold interest, and
(ii) the absolute ownership or other interest in the Nuclear Fuel or any portion thereof, and no such merger shall occur unless and until all persons, firms, corporations, and other entities, including any Assignee and Secured Party, having any interest in (a) this Fuel Lease or the leasehold interest created by this Fuel Lease or (b) the absolute ownership or other interest in the Nuclear Fuel or any portion thereof shall join in an instrument effecting such merger.

SECTION 28. Notices.

Any notices provided for in this Fuel Lease shall be in writing and shall be deemed to have been duly given when delivered personally or otherwise actually received (whether by courier, telex or facsimile transmission) or five days after the same have been deposited in the United States mail, registered certified (or registered), postage prepaid, addressed as follows:

If to the Lessor: (with copies to each Assignee at its address specified in the applicable Trust Indenture)

CommEd Fuel Company, Inc. c/o Merrill Lynch Money Markets, Inc. 225 Liberty Street - 8th Floor New York, New York 10080-6108 Attention: Mr. Gary Carlin Vice President and Treasurer Telecopier: (212) 236-7584 Confirmation: (212) 236-7200

If to the Lessee:

Commonwealth Edison Company
One First National Plaza, 37th Floor
Post Office Box 767
Chicago, Illinois 60690
Attention: Treasurer
Telecopier: (312) 394-3110
Confirmation: (312) 394-3117

and if to an Assignee, then at its address specified in the applicable Trust Indenture, or at such other place as any of the

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parties may designate by notice duly given in accordance with this Section 28.

SECTION 29. Allocation of Amounts.

Whenever, under Section 1, 5, 6, 10, 18(a), 19(b) or 22, computations are required to be made involving a cost, price, payment, charge, factor, discount, or any other amount relating to a single assembly of the Nuclear Fuel, such cost, price, payment, charge, factor, discount or any other amount shall be determined in the sole judgment of the Lessee but subject to any applicable regulatory requirements. Unless the Lessee shall have informed the Lessor otherwise in writing or unless otherwise set forth in any of the schedules attached hereto or furnished pursuant to this Fuel Lease, allocation shall be made by dividing the aggregate of all such costs, prices, payments, charges, discounts or any other amounts which are known to have been incurred, paid, accrued or arisen, at approximately the same time and in the same general transaction or computation, with respect to such assembly and several other assemblies of the Nuclear Fuel, into as many equal parts as there are such assemblies, and allocating one of the parts so divided to each such assembly. In the event that any such cost, price, payment, charge, discount or any other amount must be certified pursuant to this Fuel Lease, the person making such certification shall be the sole judge of the propriety of making any such allocation, and such person need only place the term "(allocated)" before or after any cost, price, payment, charge, discount or any other amount so certified in order to (i) establish the propriety of making such an allocation, and (ii) give the warranty of such person as to the accuracy of the allocation so certified and its compliance with the provisions of this Section 29.

SECTION 30. Amendments.

This Fuel Lease may not be amended, modified or terminated, nor may any obligation hereunder be waived, orally, and no such amendment, modification, termination or waiver shall be effective for any purpose unless it is in writing, signed by the party against whom enforcement thereof is sought (except that amendments of Schedule A hereto pursuant to Section 6, 10, 18(a) or 19(b) hereof shall be made in accordance with the provisions of such Sections) and, if this Fuel Lease has been assigned, consented to in writing by each Assignee for whose benefit such assignment was made.

SECTION 31. Severability.

Any provision of this Fuel Lease which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions

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hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. To the extent permitted by applicable law, the Lessor and the Lessee hereby waive any provision of law which renders any provision hereof prohibited or unenforceable in any respect.

SECTION 32. Taxes; Tax Benefits.

(a) For federal, state and local tax purposes, Lessor and Lessee intend that Lessee shall be treated as the owner of the Nuclear Fuel and that this Fuel Lease shall constitute a financing (i.e., a lending by Lessor and a borrowing by Lessee) and not a lease, and neither Lessor nor Lessee shall file any tax returns or reports or take any similar action which, for such tax purposes, would be inconsistent with such intention as to tax treatment; provided, that such characterization for tax purposes shall not cause this Fuel Lease to constitute such a lending and borrowing for any other purpose.

(b) To the extent that the Nuclear Fuel is or becomes eligible for any tax benefits under the Code as in effect on the date first above written or thereafter amended from time to time, and if the Internal Revenue Service shall treat the Lessor as the owner of the Nuclear Fuel, Lessor at Lessee's request shall elect to treat Lessee as the owner of the Nuclear Fuel and as having acquired the Nuclear Fuel and shall provide Lessee with an appropriate benefit election. Lessee shall provide Lessor with a report or statement with respect to all Nuclear Fuel as to which such benefit election is applicable, and such report or statement shall be in such form as may be required for Internal Revenue Service reporting.

SECTION 33. Sale of Nuclear Fuel and Assignment of Rights under Nuclear Fuel Contracts.

(a) Lessee shall, from time to time, convey, transfer, sell, assign and set over to Lessor, all or any part of Lessee's right, title and interest, whether now or hereafter existing or acquired (other than the right, title and interest of Lessee under this Fuel Lease), in and to Nuclear Fuel and Nuclear Fuel Contracts. All such conveyances, transfers, sales and assignments shall be made (i) pursuant to a Bill of Sale substantially in the form of Schedule C hereto or (ii) pursuant to an Assignment Agreement substantially in the form of Schedule F hereto, which have been executed and delivered by Lessee or a Manufacturer, as the case may be, prior to the time that Lessor is required to make any payment with respect thereto pursuant to Section 6 hereof.

(b) Neither any assignment contemplated by this Fuel Lease, nor any action or inaction on the part of Lessor under this Fuel Lease or otherwise, shall (i) release Lessee from any of its

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obligations and agreements under any Nuclear Fuel Contract, (ii) constitute an assumption of any such obligations or agreements on the part of the Lessor or any Assignee or Secured Party or (iii) impose any obligation or liability whatsoever on Lessor or any Assignee or Secured Party. No action or failure to act on the part of Lessee shall adversely affect or limit in any way the rights of Lessor under this Fuel Lease or under any Nuclear Fuel Contract.

(c) Lessee at its expense will perform and comply with all the terms and provisions of each Nuclear Fuel Contract to be performed or complied with by it; will maintain each Nuclear Fuel Contract in full force and effect; and will enforce each of the Nuclear Fuel Contracts in accordance with their respective terms and will take all such action to that end as from time to time may be reasonably requested by Lessor.

(d) Without the prior written consent of Lessor (which consent shall not be unreasonably withheld) and, if this Fuel Lease has been assigned, the prior written consent of each Assignee for whose benefit such assignment was made, Lessee will not (i) cancel or terminate any Nuclear Fuel Contract or consent to or accept any cancellation or termination thereof, (ii) waive any default under or breach of any Nuclear Fuel Contract, or (iii) take any other action in connection with any Nuclear Fuel Contract which would impair the interests or rights (or value thereof) of Lessee thereunder or of Lessor in connection therewith.

(e) Lessee will promptly deliver to Lessor copies of all notices, requests, agreements and other documents received or delivered by Lessee under or with respect to any Nuclear Fuel Contract which are material to the interests or rights (or value thereof) of Lessee thereunder or of Lessor in connection therewith. Lessee will from time to time, upon request of Lessor, furnish Lessor such information concerning the Nuclear Fuel, any Nuclear Fuel Contract or any Generating Facility as Lessor may reasonably request. Lessor shall preserve the confidentiality of any information which, under the terms of the relevant Nuclear Fuel Contract, is required to be kept confidential.

(f) Lessee will not change its principal place of business or remove therefrom its records concerning the Nuclear Fuel Contracts unless it gives Lessor at least thirty days' prior written notice thereof.

(g) Lessee hereby represents and warrants and agrees that: (i) each Nuclear Fuel Contract is in full force and effect and Lessee has delivered to Lessor a true and complete copy of each such Nuclear Fuel Contract as presently in effect; (ii) Lessee has not previously sold, assigned or transferred, or created any security interest in, the Nuclear Fuel, any Nuclear Fuel Contract or any part thereof (except for (a) such portions of Partially Assigned Agreements which are not assigned to Lessor and (b)

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assignments or transfers relating to other nuclear fuel transactions all of which have been fully discharged); (iii) Lessee has not agreed to any amendment, modification or supplement which would constitute part of any Nuclear Fuel Contract (other than as disclosed in connection with clause (i) of this Section
33(g), or waived performance by any other Person obligated under any Nuclear Fuel Contract of any obligation of such Person thereunder; (iv) neither Lessee nor any other Person is in default in the payment, performance or observance of any term, covenant or agreement on its part to be performed or observed under any Nuclear Fuel Contract; (v) the Nuclear Fuel will be kept at the locations designated by Lessee in Fuel Schedules to be submitted from time to time hereunder; and (vi) other than financing statements filed in other nuclear fuel transactions, the underlying obligations of which have been fully discharged, no financing statement (other than any which may have been filed on behalf of an Assignee or Lessor and other than any which relate to such portions of Partially Assigned Agreements which are not assigned to Lessor) covering all or any part of the Nuclear Fuel or any Nuclear Fuel Contract is on file in any public office.

SECTION 34. Miscellaneous.

The Lessor agrees that (i) the Lessor will not amend or modify or consent to any amendment or modification of, or seek any waiver adverse to the Lessee with respect to, any of the Basic Documents without the prior written consent of the Lessee, (ii) the Lessor will at all times use its best efforts to comply with, observe and perform all of the covenants and agreements required to be complied with, observed or performed by the Lessor under any of the Basic Documents to which it is a party, (iii) Lessor will exercise its rights under any Credit Agreement only with the consent of Lessee (but Lessee agrees, for the benefit of the parties to a Credit Agreement that no such failure to obtain the consent of Lessee shall reduce Lessee's obligations, or adversely impair such parties' rights, under any of the Basic Documents), and (iv) Lessor will promptly furnish to Lessee copies of all notices, requests, agreements and other documents received or delivered by Lessor under or with respect to any of the Basic Documents, to the extent that the same shall not have been delivered to Lessee pursuant thereto. The obligations of the Lessee under the Fuel Lease are unconditional, as provided in Section 5(h), notwithstanding the performance or nonperformance of Lessor of its obligations under this paragraph.

The Lessee agrees to furnish such documents and certificates as may be necessary for the Lessor to comply with, observe and perform such covenants and agreements.

The terms and provisions of this Fuel Lease supersede all prior negotiations and oral understandings, if any, between the

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Lessor and the Lessee with respect to the transactions contemplated hereby.

The obligations of the Lessor under this Fuel Lease and each document or instrument delivered by the Lessor hereunder or in connection herewith are solely the corporate obligations of the Lessor. No recourse shall be had for the payment of any amount owing hereunder or any other obligation or claim arising out of or based upon this Fuel Lease or any other document or instrument delivered by the Lessor hereunder or in connection herewith against Merrill or against any stockholder, employee, officer, director, incorporator or agent of the Lessor. For purposes of this Section 34, the term "MERRILL" shall mean and include Merrill and all affiliates thereof and any employee, officer, director, incorporator, shareholder or beneficial owner of any of them; provided, however, that the Lessor shall not be considered to be an affiliate of Merrill for purposes of this Section 34.

The Lessor shall be entitled to assume that no Termination Event or Lease Event of Default shall have occurred and be continuing hereunder, unless an officer or a director of the Lessor has actual knowledge thereof or the Lessor has received notice from any Assignee or Secured Party that such Assignee or Secured Party considers that such a Termination Event or Lease Event of Default has occurred and is continuing.

The captions in this Fuel Lease are for convenience of reference only and shall not define or limit any of the terms or provisions hereof. This Fuel Lease shall in all respects be governed by, and construed in accordance with, the laws of State of Illinois applicable to contracts made and performed within the State of Illinois.

The indemnification provisions of Section 11 hereof are for the benefit of the parties hereto and of the indemnitees named therein and Lessee hereby expressly agrees that any such indemnitee shall be entitled to sue thereon as though he, she or it were a party hereto.

-48-

IN WITNESS WHEREOF, the parties hereto have caused this Fuel Lease to be executed by their respective officers thereunto duly authorized, as of the day and year first above written.

LESSOR:

COMMED FUEL COMPANY, INC.

By: /s/ Thomas W. Widener
    ---------------------
    Thomas W. Widener
    Vice President

LESSEE:

COMMONWEALTH EDISON COMPANY

By: /s/ Dennis F. O'Brien
    ---------------------
    Dennis F. O'Brien
    Treasurer


STATE OF ILLINOIS   )
                    ) SS.
COUNTY OF COOK      )

The foregoing instrument was acknowledged before me this 23rd day of November, 1993, by Thomas W. Widener, a Vice President of CommEd Fuel Company, Inc., a Delaware corporation, on behalf of such corporation.

/s/ Peter J. Daane
------------------
 Notary Public

(Notarial Seal)

My Commission Expires: Feb. 7, 1994

STATE OF ILLINOIS  )
                   )  SS.
COUNTY OF COOK     )

The foregoing instrument was acknowledged before me this 23rd day of November, 1993, by Dennis F. O'Brien, the Treasurer of Commonwealth Edison Company, an Illinois corporation, on behalf of such corporation.

/s/ Peter J. Daane
------------------
 Notary Public

(Notarial Seal)

My Commission Expires: Feb. 7, 1994


SCHEDULE A

SCHEDULE OF NUCLEAR FUEL

Date:___________

Assembly                  Allocated            Allocated
Serial                    Acquisition          Capitalized       Allocated
No.                       Cost                 Cost              Investment
- --------                  -----------          -----------       ----------

A-1

SCHEDULE B

FORM OF RENT SCHEDULE

NET INVESTMENT VALUE CONFIRMATION
QUARTER ENDED _______________

===============================================================================================================================
   1               2                 3                 4                  5               6             7               8
- -------------------------------------------------------------------------------------------------------------------------------
              For Information Purposes Only
              -----------------------------

Assigned      Allocated         Allocated        N.I.V as of        Capitalized                     Other          N.I.V at
Assembly      Acquisition       Capitalized      the End of         Monthly Lease      Burn-Up      N.I.V.         the end of
Location      Cost              Cost             Prior Quarter      Charges            Charges      Additions      this Quarter
- --------      -----------       -----------      -------------      -------------      -------      ---------      ------------

CommEd Fuel Company, Inc.                   Commonwealth Edison Company
    (Lessor)                                    (Lessee)

By:                                         By:
    --------------------------------            --------------------------------
    Title                                       Treasurer
    (acknowledging acceptance)                  (acknowledging acceptance)

Note:
Columns 2 and 3 represent the Allocated Investment prior to the initial commencement of Heat Production.

Column 5 represents that portion of Monthly Lease Charges attributable to the period during the quarter when the Nuclear Fuel was not in Heat Production.

Column 7 used only when Nuclear Fuel is added or removed or Capitalized Costs (other than Monthly Lease Charges) are allocated to Nuclear Fuel prior to the initial commencement of Heat Production.

Column 8 equals Column 4 plus Column 5 less Column 6 plus Column 7.

Annexes I and II are a part hereof.

Any allocation shall be made in sole judgment of Lessee.

B-1

ANNEX I

CALCULATION OF BURN-UP CHARGES AND BASIC RENT

=========================================================================================
    1               2               3             4           5                 6
- -----------------------------------------------------------------------------------------
                               Est. Design
Assembly        Allocated      MWD Output       MWD         MWD         Burn-up Charge
Serial No.      N.I.V          Remaining        Factor      Output      (Col. 4 x Col. 5)
- ----------      ---------      -----------      ------      ------      -----------------

See Attachments I, II and III for calculation of Basic Rent.

Total Burn-up Charge =

Basic Rent Calculation:
1. Total Burn-Up Charge (from above) ...................
2. A. Quarterly Lease Charge (Annex II(a) plus Annex II(b)) ..............................
B. Less: Capitalized Lease Charge (see Column 5 of Rent Schedule) ...................... Lease charges for quarter ......................

3. Additional Rent .....................................
Amount Due Lessor ..............................


Capitalized Lease Charge equals the Quarterly Lease Charge allocable to Nuclear Fuel prior to initial commencement of Heat Production during the quarter.

Additional Rent excludes Capitalized Costs allocated to Nuclear Fuel prior to the initial commencement of Heat Production.

B-2

ANNEX II(a)

MONTHLY LEASE CHARGES
NUCLEAR FUEL PRIOR TO THE INITIAL COMMENCEMENT OF HEAT PRODUCTION

====================================================================================================================================
  1          2               3          4        5          6          7          8           9          10         11         12
- ------------------------------------------------------------------------------------------------------------------------------------

                            Interest Charges
        --------------------------------------------------------
        Amortization of Discount on                                                      Depositary,   Lessor    Income on   Total
        ---------------------------                      Subor-    Fees for    Fees on   CP Dealer,    Manage-   Invested    Monthly
         Commercial         IT                           dinated   Letters     Commit-   Placement     ment      Excess      Lease
Month       Paper          Notes      Loans   IT Notes   Notes     of Credit   ments     Charges       Charges   Proceeds    Charges
- -----   ------------    -----------   -----   --------   -------   ---------   -------   -----------   -------   ---------   -------

Quarterly Lease Charge .......
(Capitalized)

For Information Purposes:
Unamortized discount on Commercial
Paper as of end of Quarter .........

Unamortized discount on IT Notes
as of end of Quarter ...............

* Note: Monthly Lease Charge equals the sum of Columns 2 through 10 less the Income on Invested Excess Proceeds (Column 11).

B-3

ANNEX II(b)

MONTHLY LEASE CHARGES
NUCLEAR FUEL AFTER THE INITIAL COMMENCEMENT OF HEAT PRODUCTION

====================================================================================================================================
  1          2               3          4        5          6          7          8           9          10         11         12
- ------------------------------------------------------------------------------------------------------------------------------------

                            Interest Charges
        --------------------------------------------------------
        Amortization of Discount on                                                      Depositary,   Lessor    Income on   Total
        ---------------------------                      Subor-    Fees for    Fees on   CP Dealer,    Manage-   Invested    Monthly
         Commercial         IT                           dinated   Letters     Commit-   Placement     ment      Excess      Lease
Month       Paper          Notes      Loans   IT Notes   Notes     of Credit   ments     Charges       Charges   Proceeds    Charges
- -----   ------------    -----------   -----   --------   -------   ---------   -------   -----------   -------   ---------   -------

Quarterly Lease Charge ............

* Note: Monthly Lease Charge equals the sum of Columns 2 through 10 less the Income on Invested Excess Proceeds (Column 11).

B-4

SCHEDULE C

BILL OF SALE
TO
COMMED FUEL COMPANY, INC.

KNOWN ALL MEN BY THESE PRESENTS, that the undersigned,

                                , a                 corporation (the "VENDOR")
- --------------------------------    ---------------
whose post office address is                                      , for and in
                             -------------------------------------
consideration of the sum of $            paid to the Vendor upon or before the
                             -----------

execution and delivery of this Bill of Sale to CommEd Fuel Company, Inc., a Delaware corporation (the "PURCHASER") whose post office address is , and of other good and valuable
considerations, the receipt and adequacy of which are hereby acknowledged by the Vendor, hereby conveys, transfers, sells and sets over all of the personal property consisting of the assemblies of nuclear fuel or components thereof or other nuclear material or interests therein described in Annex I hereto (the "NUCLEAR FUEL"), and by this Bill of sale does hereby grant, bargain, sell, transfer and deliver the Nuclear Fuel unto the Purchaser, to have and to hold the Nuclear Fuel, itself, its successors and assigns, forever.

The Vendor hereby warrants itself to be the true and lawful owner of the Nuclear Fuel and to have full power, good right and lawful authority to dispose of the same in the aforesaid manner and that the Nuclear Fuel is free and clear of all claims, liens, security interests, and other encumbrances whatsoever; and the Vendor, for itself, its successors and assigns does hereby covenant and agree with the Purchaser, its successors and assigns, to warrant and defend the true ownership of the Nuclear Fuel by the Purchaser against the claims and demands of all and every person and persons.

The Vendor and the Purchaser hereby acknowledge that, notwithstanding the sale of the Nuclear Fuel by the Vendor to the Purchaser hereunder, the Nuclear Fuel will be in the possession of Commonwealth Edison Company, an Illinois corporation, or in the possession of a Manufacturer (as defined in the Nuclear Fuel Lease Agreement dated as of November 23, 1993, between the Purchaser, as lessor, and Commonwealth Edison Company, as lessee) processing, storing or reprocessing the Nuclear Fuel for the account of Commonwealth Edison Company, pursuant to such Nuclear Fuel Lease Agreement. On the date hereof, the Purchaser is licensed to own, but not to possess, the Nuclear Fuel, and under no circumstances shall a transfer of possession of the Nuclear Fuel to the Purchaser

C-1

be necessary for the transfer of ownership effected and intended to be effected by this Bill of Sale.

IN WITNESS WHEREOF, the Vendor has caused this Bill of Sale to be executed in its corporate name, by one of its authorized officers and to be dated

               ,       .
- ---------------  ------

                                      [Vendor]

By

Authorized Officer

ACCEPTANCE

THIS BILL OF SALE is accepted by the undersigned as of the date last above written.

COMMED FUEL COMPANY, INC.

By

C-2

ANNEX I

Description of the Nuclear Fuel

C-3

SCHEDULE D

FORM OF FUEL SCHEDULE

FUEL SCHEDULE NO. , dated as of , 19 , between CommEd Fuel Company, Inc., a Delaware corporation ("LESSOR"), whose post office address is and Commonwealth Edison Company, an Illinois corporation ("LESSEE"), whose post office address is Post Office Box 767, One First National Plaza, Chicago, Illinois 60690.

W I T N E S S E T H:

WHEREAS, the Lessor and the Lessee have heretofore entered into that certain Nuclear Fuel Lease Agreement dated as of November 23, 1993 (the "FUEL LEASE") (defined terms therein being used herein with the same meanings as provided in said Fuel Lease); and

WHEREAS, the Fuel Lease provides in Sections 6, 10, 18 and 19 thereof for Fuel Schedules, amending Schedule A to the Fuel Lease, to be executed and delivered from time to time;

NOW, THEREFORE, in consideration of the premises and other good and sufficient consideration and in compliance with the requirements of the Fuel Lease, the Lessor and the Lessee hereby agree as follows:

1. The Lessee certifies that the amounts set forth in Annex I hereto as Acquisition Costs, Capitalized Costs and Investment, respectively, are true and correct and have been computed in accordance with the provisions of the Fuel Lease.

2. The Lessee requests the Lessor to accept this Fuel Schedule for the purpose indicated:

[_] (a) Payment to the Manufacturers named in Annex I, if any, of the amounts specified in Annex I and/or payment to the Lessee in an amount equal to $ for costs previously incurred by the Lessee or paid by the Lessee directly to the Manufacturers. All of the amounts for which payment is hereby requested are included in Acquisition Costs and Capitalized Costs certified in paragraph 1 above and none of said amounts has been previously paid by the Lessor pursuant to Section 6 of the Fuel Lease.

D-1

[_] (b) Release from the Fuel Lease--Annex III (pursuant to Fuel Lease
Section 10(b)).

[_] (c) Transfer of title--Annex II and/or Annex III (pursuant to Fuel Lease Section 10(c)).

[_] (d) Movement of Nuclear Fuel--Annex II and/or Annex III (pursuant to Fuel Lease Section 10(d)).

(e) Permitted Fuel Loan--Annex II and/or Annex III (pursuant to Fuel Lease Section 10(e)).

3. (a) Schedule A to the Fuel Lease is hereby supplemented and amended so as to include those assemblies of Nuclear Fuel or the component parts thereof or interests therein described in Annex II hereto (the "ADDITIONAL NUCLEAR FUEL") and to subject such Additional Nuclear Fuel to the Fuel Lease (and if any Nuclear Fuel is simultaneously being removed, to eliminate from Schedule A, as theretofore supplemented and amended, the description of assemblies listed on Annex III hereto). The Additional Nuclear Fuel complies with all requirements of the Fuel Lease and of the law, and all necessary recordings and filings (including Uniform Commercial Code financing and continuation statements) have been duly made in the public offices in which such recordings and filings must be made to subject, and publish notice of the subjection of, such Additional Nuclear Fuel to the Fuel Lease and to perfect a valid first security interest therein on behalf of the Indenture Trustee, and all fees, taxes and charges payable in connection with such recordings and filings have been paid in full by the Lessee.

(b) The Lessee hereby covenants and agrees with the Lessor to warrant and defend the true ownership by the Lessor of the Additional Nuclear Fuel against the claims and demands of every person. The Lessee further warrants that such property is, and is intended to be and remain, personal property, is not and has not been affixed to any land and is free and clear of all claims, liens, security interests and other encumbrances whatsoever, except as permitted by the Fuel Lease.

4. Except as hereinbefore expressly modified and amended, the Fuel Lease is ratified and confirmed in all respects, including, without limitation, the obligation of the Lessee to pay all installments of Basic Rent and Additional Rent and other amounts to be paid by the Lessee under the Fuel Lease.

5. Delivery of this Fuel Schedule No. constitutes a representation by

the Lessee that since the date of the Fuel Lease, there has been no material change in the condition or business of the Lessee which in any way materially adversely affects the ability of the Lessee to perform its obligations under the Fuel

D-2

Lease except as set forth in documents which have been filed with the Securities and Exchange Commission and heretofore furnished to Lessor, or which are attached as part of this Fuel Schedule No. . No event or condition has

occurred which has resulted or is likely to result in the inability of the Lessor to pay any Indebtedness.

IN WITNESS WHEREOF, the Lessor and the Lessee have caused this Fuel Schedule to be duly executed as of the date first above written.

COMMED FUEL COMPANY, INC.

By:

COMMONWEALTH EDISON COMPANY

By:

D-3

ANNEX I TO SCHEDULE D

                                     Allocated       Allocated
Manufacturer and                     Acquisition     Capitalized     Allocated
Description of Service               Cost            Cost            Investment
- -----------------------              -----------     -----------     ----------

D-4

ANNEX II TO SCHEDULE D

DESCRIPTION OF NUCLEAR FUEL
TO BE INCLUDED WITH SCHEDULE A

                                                                     Net
 Assembly                                                         Investment
Serial No.                                                          Value
- ----------                                                        ----------
                                                                  $

D-5

ANNEX III TO SCHEDULE D

DESCRIPTION OF NUCLEAR FUEL TO BE RELEASED
FROM SCHEDULE A

                                                                     Net
 Assembly                                                         Investment
Serial No.                                                          Value
- ----------                                                        ----------
                                                                  $

D-6

SCHEDULE E

FORM OF BILL OF SALE
FROM
COMMED FUEL COMPANY, INC.*

KNOW ALL MEN BY THESE PRESENTS, that the undersigned, COMMED FUEL COMPANY, INC., a Delaware corporation (the "FUEL COMPANY"), whose post office address is _______________________________________________, for and in consideration of the sum of $___________ paid to the Fuel Company upon or before the execution and delivery of this Bill of Sale by Commonwealth Edison Company, an Illinois corporation (the "PURCHASER"), whose post office address is P.O. Box 767, Chicago, Illinois 60697-0767, hereby conveys, transfers, sells and sets over to the Purchaser, its successors and assigns, all right, title, interest and claim of the Fuel Company in and to the personal property consisting of the assemblies of nuclear fuel or components thereof or other nuclear material described in Annex III to Fuel Schedule No. ____, a copy of which is attached hereto and made a part hereof (the "NUCLEAR FUEL"), and by this Bill of Sale does hereby grant, bargain, sell, transfer and deliver the Nuclear Fuel unto the Purchaser, to have and to hold the Nuclear Fuel unto the Purchaser, and its successors and assigns, forever. THE NUCLEAR FUEL IS TRANSFERRED AND CONVEYED BY THE FUEL COMPANY ON AN "AS-IS," "WHERE-IS" BASIS, WITHOUT RECOURSE AGAINST OR REPRESENTATION OR WARRANTY (EXPRESS OR IMPLIED) OF ANY KIND WHATSOEVER, INCLUDING ANY WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILITY, ON THE PART OF THE FUEL COMPANY, EXCEPT THAT THE FUEL COMPANY REPRESENTS AND WARRANTS THAT IT HAS NOT VOLUNTARILY GRANTED OR CREATED ANY LIEN ON THE NUCLEAR FUEL OTHER THAN THOSE PERMITTED BY SECTION 15 OF THE FUEL LEASE. The Nuclear Fuel shall be delivered to the Purchaser, as a necessary incident of this Bill of Sale, at any of the generating facilities of the Purchaser in the State of Illinois or at facilities of a Manufacturer (designated by the Purchaser) by the Fuel Company, its agents or a common carrier consigned to the Purchaser. The Fuel Company hereby represents


* This document may be appropriately modified to include all Assignees having a security interest in the relevant Nuclear Fuel and/or to substitute another Person for Purchaser, if Purchaser has designed such other Person in accordance with the Fuel Lease.

E-1

and warrants that it has not voluntarily granted or created any lien, exception or restriction to attach to the Nuclear Fuel except as follows:

[Insert any liens, exceptions or restrictions permitted by Section 15 of the Fuel Lease at time of transfer.]

IN WITNESS WHEREOF, the Fuel Company has caused this Bill of Sale to be executed and attested by one of its duly authorized officers, and to be dated as of _____________________, 19__.

COMMED FUEL COMPANY, INC.

By:_______________________
Title:

ATTEST:


Title:

MORGAN GUARANTY TRUST COMPANY OF NEW YORK, as Indenture Trustee under the Trust Indenture dated as of November 23, 1993, as amended, made by the Fuel Company in the favor of Morgan Guaranty Trust Company of New York as trustee for the benefit of the secured parties specified therein, does hereby release the property described in Annex III to Fuel Schedule No. _____ from the lien and security interest of said Trust Indenture. NO WARRANTY, EITHER EXPRESS OR IMPLIED, AS TO TITLE, MERCHANTABILITY, FITNESS, SAFETY OR ANY OTHER MATTER WHATSOEVER, IS MADE BY, OR SHALL BE DEEMED TO BE MADE BY, AND NO RECOURSE MAY BE HAD FOR ANY REASON AGAINST, THE UNDERSIGNED OR ANY OF SUCH SECURED PARTIES.

By:__________________________________
Title:

E-2

ACCEPTANCE

This BILL OF SALE is accepted by the undersigned as of the date last written above.

COMMONWEALTH EDISON COMPANY

By:________________________________
Title:

E-3

SCHEDULE F

FORM OF ASSIGNMENT AGREEMENT

KNOW ALL MEN BY THESE PRESENTS THAT:

COMMONWEALTH EDISON COMPANY, an Illinois corporation (the "ASSIGNOR"), in consideration of one dollar and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, hereby sells, grants, bargains, conveys and assigns to COMMED FUEL COMPANY, INC., a Delaware corporation (the "ASSIGNEE"), all right, title and interest of the Assignor in, to and under all the property described in Exhibit 1 attached hereto (all of such property being herein collectively called the "PROPERTY").

TO HAVE AND TO HOLD the Property unto the Assignee, its successors and assigns, for its and their own use forever.

1. The interest of the Assignor in the Property, and the interest transferred by this Assignment, is that of absolute ownership.

2. The Assignor hereby warrants that it is the lawful owner of the rights and interests conveyed by this Assignment and that its title to such rights and interests is hereby conveyed to the Assignee free and clear of all liens, charges, claims and encumbrances of every kind whatsoever, other than (i) the amounts, if any, owing under the Contract (as such term is defined in Exhibit 1 attached hereto), (ii) other claims, if any, of the Assignor and the Contractor (as such term is defined in Exhibit 1 attached hereto) which may exist as between themselves and (iii) other liens, charges, claims and encumbrances permitted by the Fuel Lease (as hereinafter defined); and that the Assignor will warrant and defend such title forever against all claims and demands whatsoever.

-1-

3. In order that the Contractor may transfer to the Assignee clear title to the Nuclear Fuel (as such term is defined in Exhibit 1 attached here) on its delivery date, the Assignor hereby releases and transfers to the Assignee any right, title or interest in the Nuclear Fuel which may have been acquired by the Assignor under the Contract prior to its delivery date.

4. This Assignment is made in accordance with a Nuclear Fuel Lease Agreement dated as of November 23, 1993, between the Assignor and the Assignee (said Fuel Lease, as the same may from time to time be amended, modified or supplemented, being herein called the "FUEL LEASE"). Pursuant to a Trust Indenture dated as of November 23, 1993 (said Trust Indenture, as the same may from time to time be amended, modified or supplemented, being herein called the "TRUST INDENTURE"), made by Assignee in favor of Morgan Guaranty Trust Company of New York as Indenture Trustee (the "INDENTURE TRUSTEE"), the Assignee is assigning and granting a security interest in the Property and this Assignment to the Indenture Trustee, for the ratable benefit of the secured parties named in the Trust Indenture, as collateral security for all of the Secured Obligations (as that term is defined in the Trust Indenture).

5. It is expressly agreed that, anything contained herein to the contrary notwithstanding, (a) the Assignor shall at all times remain liable to the Contractor to observe and perform all of its duties and obligations under the Contract to the same extent as if this Assignment and the Trust Indenture had not been executed, (b) the exercise by the Assignee or the Indenture Trustee of any of the rights assigned hereunder or under the Trust Indenture as the case may be, shall not release the Assignor from any of its duties or obligations to the Contractor under the Contract, and (c) neither the Assignee nor the Indenture Trustee, nor any of the other secured parties under the Trust Indenture, shall have any obligation or liability under the Contract by reason of or arising out of this Assignment, the Fuel Lease or the Trust Indenture, or be obligated to perform or fulfill any of the duties or obligations of the Assignor under the Contract, or to make any payment thereunder, or to present or file any claim, or to take any action to collect or enforce the payment of any amounts or the delivery of any property which may have been assigned to it or to which it may be entitled at any time or times; provided, however, the Assignee agrees, solely for the benefit of the Assignor, and subject to the terms and conditions of the Fuel Lease, (i) to purchase the Nuclear Fuel from the Contractor pursuant to the Contract and (ii) to pay to the Contractor and/or to the Assignor or their order the respective amounts specified in the Fuel Lease with respect to such Nuclear Fuel.

-2-

6. Notwithstanding anything contained herein to the contrary, subject to the terms and conditions of the Fuel Lease, the Assignor may continue to engage in Fuel Management (as such term is defined in the Fuel Lease) with respect to the Property, including, without limitation, all dealings with the Contractor.

7. The Assignor agrees that at any time and from time to time, upon the request of the Assignee or the Indenture Trustee and at the sole expense of the Assignor, the Assignor will promptly and duly execute and deliver any and all such further instruments and documents and take such further action as the Assignee or the Indenture Trustee may reasonably request in order to obtain the full benefits of this Agreement and the Trust Indenture and of the rights, powers and interests herein and therein granted, including, without limitation, the filing of any financing or continuation statements under the Uniform Commercial Code in effect in any jurisdiction with respect to the transfer of Assignor's right, title and interest in the Property provided for hereby and the security interest granted by the Trust Indenture and the appearance in and prosecution or defense of any lawsuit with respect to the rights, powers and interests herein or therein granted (or with respect to the grant herein of such rights, powers and interests) where such appearance, prosecution or defense by the Assignor is necessary to allow Assignee or the Indenture Trustee to obtain the full benefits of this Agreement and the Trust Indenture. The Assignor hereby also authorizes the Assignee and the Indenture Trustee to file any such financing or continuation statements without the signature of the Assignor to the extent permitted by applicable law. The Assignor will mark its books and records pertaining to the Contract to evidence this Assignment and the transfer of Assignor's right, title and interest in the Property provided for hereby.

8. In any suit, proceeding or action by the Assignee under the Contract to enforce any provisions thereof, the Assignor will save, indemnify and keep the Assignee harmless from and against all expenses, loss or damage suffered by reason of any defense, set-off, counter-claim, recoupment or reduction of liability whatsoever of the Contractor, arising out of a breach by the Assignor of any obligation thereunder or arising out of any other agreement, indebtedness or liability at any time owing to or in favor of the Contractor or its successors from the Assignor, and all such obligations of the Assignor shall be and remain enforceable against and only against the Assignor and shall not be enforceable against the Assignee.

9. The Assignor hereby agrees that, except as permitted by Section 33 of the Fuel Lease, it will not enter into or consent to or permit any cancellation, termination, amendment, supplement or modification of or waiver with respect to the Contract so far as it relates to the Nuclear Fuel, nor will the Assignor sell, assign, grant any security interest in or

-3-

otherwise transfer its rights or other interests in the Property or any part thereof, except as permitted by the Fuel Lease.

10. The Assignor hereby represents and warrants that the Contract is in full force and effect and represents the only agreement between the Assignor and the Contractor with respect to the Nuclear Fuel.

11. The Assignor hereby agrees to send the Contractor a copy of this Assignment.

12. This Assignment shall be governed by and construed in accordance with the laws of the State of Illinois.

IN WITNESS WHEREOF, the Assignor has caused this Assignment to be duly executed and delivered as of the __ day of _________, ____.

COMMONWEALTH EDISON COMPANY

By:________________________________
Title:

The foregoing Assignment is hereby accepted:

COMMED FUEL COMPANY, INC.

By:________________________________
Title:

-4-

EXHIBIT 1 to
Assignment Agreement

DESCRIPTION OF PROPERTY

(a) The Agreement [description of Contract between the Assignor and
[Name of Contractor] (the "CONTRACTOR") (said Agreement, as the same may from time to time be amended, modified or supplemented being herein called the "CONTRACT"), insofar as, and only to the extent that, the Contract relates to
[description of nuclear fuel and service to be performed] presently scheduled to be delivered during __________, 19__ (the "NUCLEAR FUEL"); provided, however, that all other [nuclear fuel] under the Contract shall not be deemed to be Nuclear Fuel for purposes of this Assignment, and such nuclear fuel and the rights relating thereto under the Contract are not assigned hereby and shall not constitute Property; and

(b) The Property shall include, without limitation, (i) any and all amendments and supplements to the Contract from time to time executed and delivered, to the extent that any such amendment or supplement relates to the Nuclear Fuel, (ii) the Nuclear Fuel, including the right to receive title thereto, (iii) all rights, claims and proceeds, now or hereafter existing, under any insurance, indemnities, warranties and guaranties provided for in or arising out of the Contract, to the extent that such rights or claims relate to the Nuclear Fuel, (iv) any claim for damages arising out of or for breach or default by the Contractor under or in connection with the Contract insofar as it relates to the Nuclear Fuel, (v) any other amount, whether resulting from refunds or otherwise, from time to time paid or payable by the Contractor under or in connection with the Contract insofar as it relates to the Nuclear Fuel and (vi) the right of the Assignor to terminate the Contract or to perform or to exercise or enforce any and all covenants, remedies, powers and privileges thereunder, insofar as it or they relate to the Nuclear Fuel.


CONSENT AND AGREEMENT

The undersigned________________________(the "CONTRACTOR"), has entered into an agreement dated _________, ____, with COMMONWEALTH EDISON COMPANY, an Illinois corporation (the "ASSIGNOR") (said agreement, as the same may be from time to time amended, modified or supplemented, being herein called the "CONTRACT").

The Contractor hereby acknowledges notice that (i) in accordance with the terms of a Nuclear Fuel Lease Agreement dated as of November 23, 1993 (the "FUEL LEASE"), between the Assignor and COMMED FUEL COMPANY, INC., a Delaware corporation (the "ASSIGNEE"), the Assignor has assigned to the Assignee a part of the Assignor's rights under the Contract and may hereafter assign to the Assignee more or all of the Assignor's rights under the Contract, each such assignment of all or part of the Contract to be effected by the execution and delivery by the Assignor to the Assignee of an Assignment Agreement substantially in the form of Annex A hereto (such Assignments, as any of the same may from time to time be amended, modified or supplemented, being herein collectively called the "ASSIGNMENTS"), and (ii) pursuant to a Trust Indenture dated as of November 23, 1993 (said Trust Indenture, as the same may from time to time be amended, modified or supplemented, being herein called the "TRUST INDENTURE"), made by the Assignee in favor of Morgan Guaranty Trust Company of New York (the "INDENTURE TRUSTEE"), for the ratable benefit of the secured parties named in the Trust Indenture, the Assignee has assigned and granted a security interest in all rights under the Contract from time to time assigned to it by Assignor, as collateral security for all of the Secured Obligations (as that term is defined in the Trust Indenture), as such obligations are described in the Trust Indenture. The Contractor also acknowledges receipt of a copy of the Fuel Lease and the Trust Indenture.

The Contractor hereby consents to (i) the assignment by the Assignor to the Assignee at any time of all, and from time to time of any part, of the Assignor's right, title and interest in, to and under the Contract and the other property described in the Assignments, pursuant to one or more Assignments, and
(ii) the assignment and security interest in favor of the Indenture Trustee as described above. The Contractor further consents to all of the terms and provisions of the Trust Indenture.

The Contractor agrees that, if requested by either the Assignor or the Assignee, it will acknowledge in writing each Assignment delivered by the Assignor to the Assignee; provided,


however, that, neither the lack of notice to nor acknowledgement by the Contractor of any Assignment shall limit or otherwise affect the validity or effectiveness of this consent to any and all such Assignments.

The Contractor hereby confirms to the Assignee and the Indenture Trustee that

(a) all representations, warranties and agreements of the Contractor under the Contract which relate to the Nuclear Fuel described in the Assignments shall inure to the benefit of, and shall be enforceable by, the Assignee or the Indenture Trustee to the same extent as if originally named in the Contract as the purchaser of such Nuclear Fuel.

(b) the Contractor understands that pursuant to the Fuel Lease the Assignee has agreed to lease the Nuclear Fuel described in the Assignments to the Assignor, and consents to the assignment to the Assignor, for so long as the Fuel Lease shall be in effect or until otherwise notified by the Assignee, of the Assignee's rights under any warranty or agreement made by the Contractor in the Contract with respect to such Nuclear Fuel, and

(c) [the Contractor is in the business of selling nuclear fuel of the kind described in the Assignments, and the proposed sale of such nuclear fuel under the Contract will be in the ordinary course of business of the Contractor.]/1/

(d) Notwithstanding any provision to the contrary contained in the Contract, the Contractor agrees that title to any Nuclear Fuel covered by an Assignment shall pass directly to the Assignee under the Contract and shall not pass to the Assignor; provided, however, that the foregoing shall not apply to any Nuclear Fuel for which title has already passed to Assignor prior to the execution and delivery of an Assignment.

It is understood that neither the Assignments, the Trust Indenture nor this Consent and Agreement shall in any way


/1/Bracketed language to be included in respect of Contracts pursuant to which Lessor first acquires title to Nuclear Fuel (other than any enrichment agreement). The following language may be used in lieu of the bracketed language in the case of contracts involving the sale of uranium concentrates:
"The Contractor is in the business of selling concentrates which contain uranium oxide (U\\3\\O\\g\\), and the proposed sale of such concentrates under the Contract will be in the ordinary course of business of the Contractor."

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add to the obligations of the Contractor or the Assignor under the Contract.

This Consent and Agreement shall be governed by and construed in accordance with the laws of the State of Illinois.

IN WITNESS WHEREOF, the undersigned has caused this Consent and Agreement to be duly executed and delivered by its duly authorized officer as of the ___day of____________, ____.

[Name of Contractor]

By:_____________________ Title:

COMMED FUEL COMPANY, INC.

By:______________________________
Title:

COMMONWEALTH EDISON COMPANY

By:________________________________
Title:

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APPENDIX A

DEFINITIONS

As used in the Basic Documents (as defined below), the following terms shall have the following meanings (such definitions to be applicable to both singular and plural forms of the terms defined), except as otherwise specifically defined therein:

"ACQUISITION COST" shall mean the purchase price of any Nuclear Fuel owned by the Lessor at the date of the Fuel Lease and leased thereby as described in Schedule A thereto, and the purchase price paid by the Lessor pursuant to Section 6 of the Fuel Lease in order to acquire any portion of the Nuclear Fuel including progress payments, if any, made by Lessor in respect of Nuclear Fuel, together with costs of mining, milling, conversion, enrichment, design, fabrication, installation, delivery, redelivery, containerization, transportation, insuring, processing and any other direct costs with respect to acquiring, recovering or preparing such portion of the Nuclear Fuel for use or for management thereof through the Heat Production stage of its Nuclear Fuel Cycle, and costs with respect to repairs, replacements and renewals or Restoration of any portion of the Nuclear Fuel but excluding therefrom all Capitalized Cost of the Lessor with respect thereto. At the option of Lessee, Acquisition Cost shall also include costs related to storage, Cooling, Reprocessing and Recycling of the Nuclear Fuel to the extent that storage, Cooling, Reprocessing and Recycling is available and Lessee elects to have such Nuclear Fuel reprocessed and remain subject to the Fuel Lease as provided in
Section 10(c) thereof. The purchase price for any part of the Nuclear Fuel acquired by the Lessor from the Lessee shall include, at Lessee's option, all payments made by the Lessee to the Manufacturers for such Nuclear Fuel plus all costs, expenses, and allowances (including allowances for borrowed and other funds used during construction) which have been incurred, accrued, or made by Lessee in connection with such Nuclear Fuel and which are properly includible as a cost of such Nuclear Fuel in Lessee's books of account in accordance with Lessee's normal accounting practice and applicable regulatory requirements.

"ACT" has the meaning set forth in Section 1.3 of the Trust Indenture.

"ACTIONABLE EVENT" means a Trust Indenture Event of Default, a Credit Agreement Event of Default or a Lease Event of Default.

"ADDITIONAL CP" means the promissory notes of the Company issued and sold in the commercial paper market other than the Commercial Paper.

"ADDITIONAL FINANCING" means financing obtained by the Company other than through the issuance of the Series A Notes, Commercial Paper, the incurrence of loans under the Original


Credit Agreement or a borrowing from the Lessee evidenced by a Subordinated Note.

"ADDITIONAL IT NOTES" means the IT Notes issued from time to time under Section 12.2 of the Trust Indenture.

"ADDITIONAL RENT" is defined in Section 5(d) of the Fuel Lease.

"AFFILIATE" of any Person means any other Person (1) which directly or indirectly controls, or is controlled by, or is under common control with, such Person, (2) which owns 5% or more of the Voting Stock of such Person or (3) 5% or more of the Voting Stock (or in the case of a Person which is not a corporation, 5% or more of the equity interest) of which is owned by such Person or a subsidiary. The term "control" means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of Voting Stock, by contract or otherwise.

"AFFILIATED IT NOTEHOLDERS" means the registered holders of the IT Notes which are, or which hold for the benefit of, as nominee or otherwise, (i) the Company, (ii) the Lessee, (iii) an Affiliate of the Company or (iv) an Affiliate of the Lessee. The Indenture Trustee shall be entitled to rely conclusively, and shall be fully protected in relying, on the representation of any registered holder of the IT Notes as to such holder's status as a Non- Affiliated Noteholder.

"AGENT" means The First National Bank of Chicago and each successor Administrative Agent (as defined therein) under the Original Credit Agreement, and each other banking institution which shall act as agent for the Banks which are parties to a Credit Agreement.

"ASSIGNED AGREEMENT" means a Nuclear Fuel Contract which has been assigned to the Company in the manner specified in Section 33 of the Fuel Lease pursuant to a duly executed and delivered Assignment Agreement. The term Assigned Agreement shall include a Partially Assigned Agreement.

"ASSIGNEE" means each Person to which any part of the Company's rights or interest under the Fuel Lease shall at the time be assigned, conditionally or otherwise, by the Company, as contemplated by Section 24 of the Fuel Lease (including, without limitation, the Indenture Trustee).

"ASSIGNMENT AGREEMENT" means an assignment agreement substantially in the form of Schedule F to the Fuel Lease.

"ATOMIC ENERGY ACT" shall mean the Atomic Energy Act of 1954, as amended from time to time.

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"BANK" means each of the "Banks" and "Participants" which is or becomes a party to the Original Credit Agreement and includes all banking institutions which shall enter into a Credit Agreement in substitution for or in addition to the Original Credit Agreement.

"BANK NOTE" has the meaning specified in Section 1.02 of the Original Credit Agreement.

"BANK OBLIGATIONS" means all present and future obligations and indebtedness of the Company owing to the Banks under a Credit Agreement, including the obligation to pay principal of and interest on the loans made thereunder, the obligation to reimburse any of the Banks for payments made by the Banks under a Letter of Credit, and the obligation to pay commitment and Letter of Credit fees, costs, expenses and other charges and amounts from time to time owed under a Credit Agreement.

"BANKRUPTCY EVENT OF DEFAULT" means (i) an event or occurrence involving the Company of the nature defined as a Trust Indenture Event of Default under Section 9.1.9 of the Trust Indenture or as a Credit Agreement Event of Default under Sections 11.01(e) or (f) of the Original Credit Agreement or (ii) an event or occurrence involving the Lessee of the nature defined as a Lease Event of Default under Sections 25(a)(iv) or (v) of the Fuel Lease.

"BASIC DOCUMENTS" means the Fuel Lease, the Note Purchase Agreements, the Trust Indenture, the Series A Notes, the Original Credit Agreement, any other Credit Agreement, the Commercial Paper, the Original Letters of Credit, the Bank Notes, the Depositary Agreement, the Consent and Agreement, the Lessee's Letter Agreements, the Assigned Agreements, the Assignment Agreements, the Subordination Agreement, the Subordinated Notes, each Bill of Sale, each Fuel Schedule, the Dealer Agreement, the DTC letters of representation, the rating agency letter agreements, the Management Agreement and other agreements related or incidental thereto, as each of the above may from time to time be in effect. The Basic Documents shall also include all Additional IT Notes, if any, issued under and in accordance with the Trust Indenture, the Note Purchase Agreements relating to such Additional IT Notes, and all notes and instruments evidencing, and all revolving and other credit agreements relating to, any Additional Financing, which is incurred by the Company in compliance with the provisions of Section 6.13(b) of the Trust Indenture.

"BASIC RENT", with respect to a Basic Rent Period, shall mean the sum of the Quarterly Lease Charge, less Capitalized Monthly Lease Charges, plus the Burn-up Charge, as shown on a Rent Schedule for such Basic Rent Period.

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"BASIC RENT PAYMENT DATE" means, for any Basic Rent Period, the last day of the calendar month following such Basic Rent Period, except that, if such Basic Rent Period terminates on the Termination Settlement Date, the Basic Rent Payment Date for such Basic Rent Period shall be such Termination Settlement Date.

"BASIC RENT PERIOD" means each of the periods (a) commencing on, in the case of the first such period, the Effective Date and, in the case of each succeeding period, the first day following the immediately preceding Basic Rent Period and (b) ending on the earliest of (i) the last day of January, April, July and October or (ii) the Termination Settlement Date.

"BILL OF SALE" means a bill of sale substantially in the form of either Schedule C or E to the Fuel Lease, pursuant to which title to all or any portion of the Nuclear Fuel is transferred to the Company or to the Lessee.

"BURN-UP CHARGE" shall mean the amount shown as "Total Burn-up Charge" on Annex I to the Rent Schedule delivered to the Lessor pursuant to Section 5(b) of the Fuel Lease in respect of the applicable Basic Rent Payment Date.

"BUSINESS DAY" shall mean any day other than a Saturday, Sunday or a day on which banks are authorized by law to close in Chicago, Illinois or New York, New York.

"CALENDAR QUARTER" means a three month period ending on the last day of any March, June, September or December.

"CAPITALIZED COST" shall mean the sum of (i) all sales, excise, use and personal property taxes, (ii) all legal, accounting, auditing, engineering, insurance, financing, printing, reproduction, closing and other normally capitalizable administrative fees and expenses actually paid or accrued by the Lessor in connection with any acquisition or ownership of or administration associated with the Nuclear Fuel or in connection with the transactions contemplated by the Basic Documents and (iii) Monthly Lease Charges accrued pursuant to the Fuel Lease which, in the Lessee's sole judgment, are allocable to the Nuclear Fuel (x) during any stage of its Nuclear Fuel Cycle other than after initial commencement of Heat Production or (y) during the period beginning on the Termination Notice Date and ending on the Termination Settlement Date (in each case as defined in Section 20(b) of the Fuel Lease) if and to the extent that the Lessee elects to capitalize any such Monthly Lease Charges; provided, however, that Monthly Lease Charges may be allocated to and included in Capitalized Cost by the Lessee as set forth above only in an amount not exceeding the sum of (i) the amount of the credit then capable of being drawn by the Lessor under a Credit Agreement, all Additional Financings and IT Notes in effect at the time plus (ii) the amounts available to the Lessor for disbursement from the Collateral Account.

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"CAPITALIZED LEASE" means any and all lease obligations which are or should be capitalized on the balance sheet of the Person in question in accordance with generally accepted accounting principles and Statement No. 13 of the Financial Accounting Standards Board or any successor to such pronouncement regarding lease accounting without regard for the accounting treatment permitted or required under any applicable state or federal public utility regulatory accounting system unless such treatment controls the determination of the generally accepted accounting principles applicable to such Person.

"CAPITALIZED MONTHLY LEASE CHARGES" shall mean Monthly Lease Charges included in the Capitalized Cost of the Nuclear Fuel.

"CLOSING" means the date upon which the Assignment Agreements (if any), the Lessee's Letter Agreement, the Consent and Agreement, the Fuel Lease, the Trust Indenture, the Original Credit Agreement, the Note Purchase Agreements, the Series A Notes and the Trust Agreement shall be executed and delivered and the transactions contemplated therein consummated.

"CODE" shall mean the Internal Revenue Code of 1986, as from time to time amended.

"COLLATERAL" has the meaning set forth in the granting clauses of the Trust Indenture and includes all property of the Company described in any Collateral Agreement as comprising part of the Collateral.

"COLLATERAL ACCOUNT" has the meaning set forth in Section 4.1 of the Trust Indenture.

"COLLATERAL AGREEMENTS" means, collectively, the Trust Indenture, the Fuel Lease, all Assignment Agreements, and any other assignment, security agreement or instrument executed and delivered to the Indenture Trustee hereafter relating to property of the Company which is security for the Secured Obligations.

"COMMERCIAL PAPER" means the promissory notes of the Company issued and sold in the commercial paper market which are entitled to the benefit of an Original Letter of Credit issued pursuant to the Original Credit Agreement.

"COMMERCIAL PAPER ACCOUNT" means the special account maintained by the Company with the Depositary for the purpose of reimbursing a Bank for LOC Payments and repaying loans made under a Credit Agreement and includes all sub- accounts created thereunder.

"COMPANY" means CommEd Fuel Company, Inc., a Delaware corporation.

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"COMPANY REPRESENTATIVE" means any person at the time designated to act on behalf of the Company by written certificate furnished to the Lessee and the Indenture Trustee containing the specimen signatures of such persons and signed on behalf of the Company by its President or any Vice President. Such certificate may designate an alternate or alternates.

"COMPANY REQUEST" or "COMPANY ORDER" means a written request or order signed in the name of the Company by two Company Representatives and delivered to a Responsible Officer of the Indenture Trustee.

"CONSENT AND AGREEMENT" means the Consent and Agreement of the Lessee, dated as of November 23, 1993, as the same may from time to time be amended, modified or supplemented.

"COOLING" shall mean the stage of the Nuclear Fuel Cycle pursuant to which Nuclear Fuel is placed in storage following the Heat Production stage of the Nuclear Fuel Cycle.

"CREDIT" has the meaning specified in Section 1.02 of the Original Credit Agreement.

"CREDIT AGREEMENT" means (i) the Original Credit Agreement, and (ii) any credit agreement entered into by the Company in substitution for or in addition to the Original Credit Agreement which provides for the issuance of Letters of Credit to support the issuance of Additional CP by the Company and/or the extension of loans to the Company, as the same is from time to time in effect, and which comprises an Additional Financing which is incurred in compliance with the provisions of Sections 6.13(b) and 6.14 of the Trust Indenture.

"CREDIT AGREEMENT EVENT OF DEFAULT" means any one or more of the events specified in Section 11.01 of the Original Credit Agreement or a similar event or events under any other Credit Agreement.

"CREDIT AGREEMENT OUTSTANDINGS" or "OUTSTANDINGS" as of any date means the sum of (x) the principal amount of the loans outstanding on such date under the Credit Agreements, (y) the Face Amount of all Commercial Paper and Additional CP outstanding on such date less the Face Amount of Commercial Paper and Additional CP which have matured for the payment of which funds are on deposit in the Note Redemption Account and (z) the amount on such date of all unreimbursed LOC Payments and Deferred Reimbursements. For purposes of this definition, "FACE AMOUNT" means the principal amount thereof plus, in the case of Commercial Paper or Additional CP issued on an interest-bearing basis, all interest payable thereon to its stated maturity date.

"CREDIT EVENT" has the meaning specified therefor in Section 1.02 of the Original Credit Agreement.

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"CREDIT EXPOSURE" means (i) with respect to IT Noteholders, the aggregate principal amount of the IT Notes Outstanding, other than IT Notes which are held by Affiliated IT Noteholders, and (ii) with respect to the Banks, the aggregate of their Credit Amounts (as defined in the Credit Agreement).

"DEALER" means Merrill Lynch Money Markets Inc. and/or such other entity with whom the Company enters into any Dealer Agreement.

"DEALER AGREEMENT" means the Commercial Paper Dealer Agreement dated as of November 23, 1993, between the Company and Merrill Lynch Money Markets Inc., and/or such other or further agreements for the distribution and placement of Commercial Paper or Additional CP as may be entered into by the Company, in each case as the same may be modified, supplemented or amended from time to time.

"DEFERRED REIMBURSEMENTS" has the meaning specified in Section 1.02 of the Original Credit Agreement.

"DEPOSITARY" means the Person which has been appointed by the Company to act as depositary, issuing agent and paying agent for the Commercial Paper or Additional CP, and which has entered into a Depositary Agreement with the Company.

"DEPOSITARY AGREEMENT" means the agreement among the Company and the Person acting as the Depositary, pursuant to which such Person acts as depositary, issuing agent and paying agent for the Commercial Paper or Additional CP.

"DESIGNATED HOLDERS" means, at any time when any action is taken or is required to be taken by any Secured Party acting as provided in Section 1.3 of the Trust Indenture, the holders of (i) at least 66-2/3% in principal amount of all Secured Obligations at the time outstanding, (ii) at least 66-2/3% of the Credit Agreement Outstandings under each Credit Agreement, (iii) at least 66-2/3% of the Outstanding Series A Notes, and (iv) at least 66-2/3% of the Outstanding Additional IT Notes, provided, however, that in any determination pursuant to clause (ii) with respect to any Credit Agreement, the percentage of Credit Agreement Outstandings, lender commitments or combination thereof required by the terms of such Credit Agreement for the Banks thereunder to direct the Agent thereunder to take (or instruct the Indenture Trustee to take) the action for which a determination of Designated Holders is being made shall be controlling, so long as such percentage is at least 66-2/3%, and, provided further, that in any determination pursuant to clause (iii) and clause (iv), IT Notes that are held by Affiliated IT Noteholders shall be excluded in determining the percentage of Outstanding IT Notes.

"DISCLOSURE DOCUMENTS" has the meaning specified in Section 10.1 of the Original Note Purchase Agreements.

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"DISCOUNTED VALUE" means, with respect to any principal amount of any Series A Note which is to be redeemed or is subject to acceleration, the amount obtained by discounting all Remaining Scheduled Payments with respect to such principal amount from their respective scheduled due dates to the date of any prepayment of such principal amount, in accordance with accepted financial practice and at a discount factor (applied on a semiannual basis) equal to the Reinvestment Yield with respect to such principal amount.

"EFFECTIVE DATE" means November 23, 1993.

"ERISA" means the Employee Retirement Income Security Act of 1974, as from time to time amended.

"ESTIMATED RESIDUAL VALUE" shall mean the salvage value (stated in dollars) with respect to any portion of Nuclear Fuel after it shall have fully completed Heat Production. The estimate of residual value shall not affect the Lessee's obligations with respect to Fuel Management pursuant to Section 9 of the Fuel Lease.

"EXISTING FUEL COMPANY" shall mean individually CWE Fuel Company Inc., a Delaware corporation, or Commonwealth Fuel Company II, a Delaware corporation, and collectively, such companies shall be referred to as the "EXISTING FUEL COMPANIES."

"FAIR MARKET VALUE" shall be determined by the Lessee in good faith and in accordance with applicable engineering and accounting standards, if any, such determination to be evidenced, if and when requested by Lessor, by a certificate executed by the President or a Vice President or the Treasurer or an Assistant Treasurer of the Lessee.

"FUEL LEASE" means the Nuclear Fuel Lease Agreement dated as of November 23, 1993, between the Company, as Lessor, and Commonwealth Edison Company, as Lessee, as the same may from time to time be amended, modified or supplemented in accordance with the provisions thereof and of the Trust Indenture.

"FUEL MANAGEMENT" shall mean the design of, contracting for, determining the price and terms of acquisition of, management, movement, removal, disengagement, use, storage and other activities in connection with the acquisition, utilization, storage and disposal of the Nuclear Fuel, and sometimes is referred to in the Fuel Lease as "management".

"FUEL SCHEDULE" shall mean an instrument in substantially the form of Schedule D to the Fuel Lease, pursuant to which Schedule A to the Fuel Lease is amended in connection with a request by the Lessee for payment with respect to Nuclear Fuel pursuant to Section 6 of the Fuel Lease or in connection with a removal or a replacement of Nuclear Fuel pursuant to Sections 10, 18(a) or 19(b) thereof.

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"GENERATING FACILITY" means any nuclear reactor (except the nuclear reactor designated as "Dresden Unit 1") located in the State of Illinois in which Lessee has a majority ownership interest.

"GRANTING CLAUSES" means the portion of the Trust Indenture prior to
Section 1, beginning with the statement of consideration.

"HEAT PRODUCTION" shall mean that stage of the Nuclear Fuel Cycle when the Nuclear Fuel is loaded into the reactor core of any Generating Facility and is being consumed to produce heat, pursuant to the process of nuclear fission, in the production of electric energy.

"HEREOF", "HEREIN", "HEREUNDER" and words of similar import when used in a Basic Document refer to such Basic Document as a whole and not to any particular section or provision thereof.

"IMPOSITIONS" means all payments required by public or governmental authority in respect of any property subject to the Fuel Lease or any transaction pursuant to the Fuel Lease or any right or interest held by virtue of the Fuel Lease.

"INDEBTEDNESS" means, with respect to the Company, (i) all items (including, without limitation, Capitalized Leases but excluding shareholders' equity and minority interests) which in accordance with generally accepted accounting principles should be reflected on the liability side of a balance sheet as at the date as of which Indebtedness is to be determined; (ii) all obligations and liabilities (whether or not reflected upon such balance sheet) secured by any Lien existing on the property held subject to such Lien, whether or not the obligation or liability secured thereby shall have been assumed; and
(iii) all guarantees, endorsements (other than for collection in the ordinary course of business) and contingent obligations in respect of any liabilities of the type described in clauses (i) and (ii) of this definition (whether or not reflected on such balance sheet); provided, however, that the term "INDEBTEDNESS" shall not include deferred taxes.

"INDEBTEDNESS FOR BORROWED MONEY" means all Indebtedness in respect of borrowed money or the deferred purchase price of property or services.

"INDENTURE TRUSTEE" means the institution designated as such in the Trust Indenture and its permitted successors.

"INSTITUTIONAL INVESTOR" shall mean any Person that is a "qualified institutional buyer" as defined in Rule 144A promulgated under the Securities Act of 1933.

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"INSURANCE REQUIREMENTS" means all terms of any insurance policy or indemnification agreement covering or applicable to any Nuclear Fuel or Generating Facilities and all requirements of the issuer of any such policy or agreement necessary to keep such insurance or agreements in force, and all orders, rules, regulations and other requirements of the Federal Energy Regulatory Commission, the Nuclear Regulatory Commission, the National Board of Fire Underwriters or any other body at any time exercising similar functions with respect to electric utility properties, which are applicable to or affect any of the Generating Facilities, any of the Nuclear Fuel or any operation, use or condition of any thereof.

"INTEREST PAYMENT DATE" means, with respect to the IT Notes, the dates specified for the payment of interest on the respective IT Notes.

"INVESTMENT" shall mean, with respect to any portion of the Nuclear Fuel, the sum of (i) the Acquisition Cost for such portion, plus (ii) the Capitalized Cost for such portion, which has been paid or accrued by the Lessor, including payments by the Lessor to the Lessee.

"IT NOTEHOLDER" or "HOLDER OF ANY IT NOTE" means any Person in whose name an IT Note is registered.

"IT NOTES" means the promissory notes issued by the Company from time to time under and in accordance with the terms, provisions and limitations of the Trust Indenture, and shall include the Series A Notes and any Additional IT Notes.

"LEASE DEFAULT" means any of the events specified in Section 25(a) of the Fuel Lease, whether or not any requirement for notice or lapse of time or other condition has been satisfied.

"LEASE EVENT OF DEFAULT" has the meaning specified therefor in Section 25(a) of the Fuel Lease.

"LEGAL REQUIREMENTS" means all requirements having the force of law applicable at any time to any or all of the Generating Facilities, or to the Lessee as a licensee thereof, any of the Nuclear Fuel, any transaction pursuant to the Fuel Lease or any right or interest held by the Company or the Lessee pursuant to the Fuel Lease.

"LESSEE" shall mean Commonwealth Edison Company, an Illinois corporation, or any successor or successors to its rights and obligations as Lessee under the Fuel Lease.

"LESSEE REPRESENTATIVE" means any person at the time designated to act on behalf of the Lessee by a written certificate furnished to the Company and the Indenture Trustee containing the specimen signatures of such persons and signed on behalf of the Lessee by any of its officers. Such certificate

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may designate an alternate or alternates. A Lessee Representative may be an employee or representative of the Lessee.

"LESSEE'S LETTER AGREEMENT" means any letter agreement furnished by the Lessee in connection with the issuance of any IT Notes by the Company or in connection with any Credit Agreement, and shall include the "Lessee's Letter Agreements" referred to in Section 5.2(f) of the Note Purchase Agreements relating to the Series A Notes and the "Lessee's Letter Agreement to Banks" delivered in connection with the Original Credit Agreement.

"LESSOR" shall mean CommEd Fuel Company, Inc., a Delaware corporation, or any successor or successors to its rights and obligations as Lessor under the Fuel Lease.

"LESSOR'S BILL OF SALE" means an instrument substantially in the form of Schedule E to the Fuel Lease.

"LETTER OF CREDIT" means (a) an Original Letter of Credit and (b) one or more letters of credit issued pursuant to any other Credit Agreement which provide credit support for Additional CP issued by the Company.

"LIEN" means any mortgage, pledge, lien, security interest, title retention, charge or other encumbrance of any nature whatsoever (including any conditional sale or other title retention agreement, any lease in the nature thereof and the filing of or agreement to execute and deliver any financing statement under the Uniform Commercial Code of any jurisdiction).

"LOAN" means any Base Rate Loan, CD Rate Loan or Libor Rate Loan made by the Banks (or any Bank) to the Company pursuant to Article II of the Original Credit Agreement.

"LOC PAYMENT" means any payment made by a Bank under a Letter of Credit.

"MANUFACTURER" means (a) any Person which supplies any component of, or goods or services (including without limitation, enrichment, fabrication, financing, transportation, storage and processing) in connection with, Nuclear Fuel at any stage of the Nuclear Fuel Cycle, or any agent or licensee of any such supplier, (b) any regulated electric company, and (c) any Person with authority to convey title to nuclear fuel to any regulated electric company.

"MANAGEMENT AGREEMENT" means the Management Agreement dated as of November 23, 1993 between the Company and Merrill Lynch Money Markets Inc., as the same may be from time to time be amended, modified, or supplemented.

"MANAGEMENT FEE" means the amount of $50,000 per annum.

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"MAXIMUM OUTSTANDING IT NOTES LIMIT" has the meaning specified therefor in Section 12.3(B)(ii) of the Trust Indenture.

"MONTHLY LEASE CHARGE" shall mean for any calendar month during the term of the Fuel Lease:

(i) an accrual for such month of (1) all interest expense and all amortization of debt discount of the Lessor (whether or not paid), with respect to all outstanding Commercial Paper, IT Notes and other Indebtedness or liability incurred or owed by the Lessor pursuant to the Basic Documents and (2) all commitment, standby letter of credit facility and other fees, costs and expenses (whether or not paid), if any, incurred or owed by the Lessor pursuant to the Basic Documents; plus

(ii) an accrual for such month with respect to all amounts paid or due and payable by the Lessor with respect to the transactions contemplated by the Basic Documents for fees and expenses for depositaries or issuing agents' expenses, Dealers for the Commercial Paper and/or Additional CP, and Placement Agents for the IT Notes; plus

(iii) an accrual for such month of a management charge composed of the cost recovery for all administrative, accounting and all other management services including the Management Fee (other than fees, expenses and costs referred to in the foregoing clauses (i) and (ii), charges for auditing by an independent certified public accounting firm and other professional fees and legal fees and expenses) for the twelve-month period as projected by the Lessor and provided to and reviewed by the Lessee beginning each January 1, adjusted annually for the difference between the Lessor's projected management fee and the amount of such costs actually incurred for the preceding twelve-month period, divided by twelve; and minus

(iv) Lessor's cash income for such month on investment of moneys received in connection with the transactions contemplated by the Basic Documents, other than moneys received pursuant to (iii) above.

Any figure used in the computation of any component of the Monthly Lease Charge shall be stated with sufficient accuracy to enable calculation of the Monthly Lease Charge to the nearest penny. No accrual, charge or other item which would constitute a part of the Acquisition Cost shall be included in the computation of the Monthly Lease Charge.

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"MORTGAGE" shall mean that certain Mortgage of the Lessee to Continental Bank, National Association, and M.J. Kruger, as trustees, dated as of July 1, 1923, as the same has been and may from time to time be amended or supplemented and in effect.

"MWD FACTOR" shall mean a factor determined by dividing (i) the Net Investment Value for an assembly of Nuclear Fuel by (ii) the estimated amount of heat remaining, measured in thermal megawatt days, that such assembly will produce during Heat Production. The MWD Factor shall be carried to such accuracy as needed to calculate the Basic Rent to the nearest penny.

"MWD OUTPUT" means the amount of heat, measured in thermal megawatt days, that an assembly produced during the period in question. .

"NET INVESTMENT VALUE" or "N.I.V." shall mean, with respect to any portion of the Nuclear Fuel (excluding any portion of the Nuclear Fuel loaned) at any time leased under the Fuel Lease, the excess of the amount of the Investment in such portion over the aggregate amount of Burn-up Charges theretofore paid by the Lessee to the Lessor in respect of such portion.

"NON-AFFILIATED IT NOTEHOLDER" means the registered holders of the IT Notes, other than any holder which is an Affiliated IT Noteholder.

"NOTE PURCHASE AGREEMENTS" means (i) the several but identical (except for the name of the purchaser) Note Purchase Agreements, each dated as of November 23, 1993, relating to the issue and sale by the Company of the Series A Notes, as from time to time in effect (the "ORIGINAL NOTE PURCHASE AGREEMENTS"), and (ii) any similar agreements hereafter entered into by the Company relating to the purchase and sale of Additional IT Notes pursuant to the Trust Indenture or a supplemental indenture thereto.

"NOTE PURCHASE AGREEMENT OBLIGATIONS" means the principal of, premium, if any, and interest on the Outstanding IT Notes and all other costs, fees and expenses and amounts required to be paid by the Lessor on or with respect to the Outstanding IT Notes or under the Note Purchase Agreements relating thereto.

"NOTE REDEMPTION ACCOUNT" means the special account maintained by the Depositary for the purpose of effecting payment of Commercial Paper or Additional CP under the Depositary Agreement and includes all sub-accounts created thereunder.

"NOTICE OF AN ACTIONABLE EVENT" means (i) a certificate of any of the IT Noteholders that an Actionable Event has occurred, (ii) a certificate of the Agent that an Actionable Event has occurred, or (iii) whether or not any certificate or notice thereof shall have been delivered to the Indenture Trustee, a Bankruptcy Event of Default. A Notice of an

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Actionable Event has been "GIVEN" (a) in the case of a Bankruptcy Event of Default, when such Bankruptcy Event of Default occurs or (b) in the case of any other Notice of an Actionable Event, when the certificate referred to in either clause (i) or clause (ii) of the immediately preceding sentence has actually been received by a Responsible Officer of the Indenture Trustee. A Notice of an Actionable Event has been "RESCINDED" when, after a Notice of an Actionable Event (other than a Bankruptcy Event of Default) has been given, the Person giving such Notice has subsequently delivered to a Responsible Officer of the Indenture Trustee a certificate stating that there exists no Actionable Event or when, after a Bankruptcy Event of Default, such Bankruptcy Event of Default is no longer continuing and a Responsible Officer of the Indenture Trustee has received a certificate to that effect from the Designated Holders. A Notice of an Actionable Event is "OUTSTANDING" at all times after such Notice of an Actionable Event has been given until such time, if any, as such Notice of an Actionable Event has been rescinded.

"NUCLEAR FUEL" means the separate assemblies of nuclear fuel and materials and components thereof or portions of separate assemblies more particularly described in Schedule A to the Fuel Lease, as amended from time to time by means of a Fuel Schedule, in the respective forms or interests (including undivided or partial ownership interests) therein in which such assemblies and components exist at each stage of the Nuclear Fuel Cycle, consisting of substances (excluding unmined ores) and equipment which, when loaded into a nuclear reactor, are intended to produce heat through the fission process, together with all attachments, accessories, parts and additions and all improvements and repairs thereto, and all replacements thereof, substitutions therefor and additions thereto; provided, however, that the term Nuclear Fuel shall not include any assemblies, components or other items purchased and paid for by the Lessee pursuant to the provisions of Section 10(b) of the Fuel Lease or loaned to any one or more Nuclear Fuel Users pursuant to the provisions of
Section 10(e) of the Fuel Lease.

"NUCLEAR FUEL CONTRACT" means any contract, as from time to time amended, modified or supplemented, entered into by the Lessee with one or more Manufacturers relating to the acquisition of Nuclear Fuel or any service in connection with the Nuclear Fuel and assigned to the Company pursuant to the Fuel Lease as an Assigned Agreement.

"NUCLEAR FUEL CYCLE" shall mean the various stages herein defined in the process, whether physical or chemical, by which the component parts of the Nuclear Fuel are mined, milled, converted, processed, enriched, designed, fabricated into assemblies utilizable for Heat Production, loaded or installed into a reactor core, utilized, disengaged, cooled, stored and/or reprocessed, together with all incidental processes and engineering with respect to the Nuclear Fuel at any stage of such Nuclear Fuel Cycle.

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"NUCLEAR FUEL USER" means any public utility company; any financing vehicle of any public utility; any Manufacturer; or any Person in the business of brokering Nuclear Fuel.

"NUCLEAR REGULATORY COMMISSION" means the independent regulatory commission of the United States Government existing under the authority of the Energy Reorganization Act of 1974, as amended, or any successor organization or organizations performing any identical or substantially identical licensing and related regulatory functions.

"OBLIGATIONS" has the same meaning as the term Secured Obligations.

"OFFICER'S CERTIFICATE" means, with respect to any corporation, a certificate signed by the President, any Vice President, the Treasurer or any Assistant Treasurer of such corporation, and with respect to any other entity, a certificate signed by an individual generally authorized to execute and deliver contracts on behalf of such entity.

"OPINION OF COUNSEL" means a written opinion of counsel who is acceptable to the Indenture Trustee, or where it is stated as being an opinion of counsel of a particular party, who is acceptable to such party. The counsel may be counsel to the Company, the Indenture Trustee or the Lessee.

"ORIGINAL BILLS OF SALE" shall mean the bills of sale, dated as of the date of the Closing, for nuclear fuel transferred from CWE Fuel Company Inc. and Commonwealth Fuel Company II to the Lessor.

"ORIGINAL CREDIT AGREEMENT" shall mean the Credit Agreement dated as of November 23, 1993, among the Lessor, The First National Bank of Chicago, Canadian Imperial Bank of Commerce, New York Agency and Credit Suisse, New York Branch, and the other Banks which are, or become, parties thereto, as the same may be modified, supplemented or amended from time to time.

"ORIGINAL LETTER OF CREDIT" shall mean each letter of credit, substantially in the form of Exhibit C to the Original Credit Agreement, issued by a Bank under the Original Credit Agreement or any letter of credit issued thereunder in substitution therefor.

"OUTSTANDING", when used with reference to IT Notes, or "IT NOTES OUTSTANDING," shall mean all IT Notes which have been authenticated and delivered by the Indenture Trustee under the Trust Indenture excluding (i) each of the following:

(a) IT Notes cancelled or purchased by the Lessor or delivered to the Indenture Trustee for cancellation;

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(b) IT Notes that have become due (at maturity or on redemption, acceleration or otherwise) and for the payment, including premium, if any, and interest accrued to the due date, of which sufficient moneys are held by the Indenture Trustee; and

(c) IT Notes in lieu of which others have been authenticated under
Section 2.5 of the Trust Indenture (relating to registration and exchange of IT Notes) or Section 2.6 of the Trust Indenture (relating to mutilated, lost, stolen, or destroyed IT Notes);

and (ii) in connection with any distribution of proceeds or payments in respect of any sale or other disposition of any Collateral under any of the Collateral Agreements or upon enforcement of any of the remedies provided by the Collateral Agreements, IT Notes held by Affiliated IT Noteholders, except after the prior payment in full of all IT Notes not held by Affiliated IT Noteholders.

"OUTSTANDING IT NOTE INDEBTEDNESS" means, at any particular time, the aggregate principal balance remaining unpaid on the IT Notes then issued and Outstanding.

"PARTIALLY ASSIGNED AGREEMENT" means a Nuclear Fuel Contract which has been assigned, in part but not in full, to the Company in the manner specified in Section 33 of the Fuel Lease, pursuant to a duly executed and delivered Assignment Agreement.

"PARTICIPANT" shall have the meaning set forth in Section 1.02 of the Original Credit Agreement.

"PBGC" means the Pension Benefit Guaranty Corporation, created by
Section 4002(a) of ERISA and any successor thereto.

"PERMITTED FUEL LOAN" has the meaning specified in Section 10(e) of the Fuel Lease.

"PERMITTED LIENS" means the Liens permitted by Section 15 of the Fuel Lease, except that as used in the Indenture, the Note Purchase Agreements or any other Basic Documents (other than the Fuel Lease), Permitted Liens do not include any Lien created by the Lessor other than the Lien of the Indenture and the Collateral Agreements.

"PERSON" means any individual, partnership, joint venture, limited liability company, corporation, trust, unincorporated organization or other business entity or any government or any political subdivision or agency thereof.

"PLACEMENT AGENT" means Merrill Lynch & Co., Inc., as Placement Agent for the Series A Notes, and any other person or entity subsequently acting as Placement Agent for any Additional IT Notes issued as provided in the Trust Indenture.

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"PLAN" means, with respect to any Person, any plan of a type described in Section 4021(a) of ERISA in respect of which such Person is an "employer" or a "substantial employer" as defined in Sections 3(5) and 4001(a)(2) of ERISA, respectively.

"PRINCIPAL PAYMENT DATE" means such dates, if any, as are specified in any IT Note and dates specified in any Note Purchase Agreement or the Trust Indenture, as dates prior to maturity upon which principal payments shall be made.

"PUBLIC UTILITY HOLDING COMPANY ACT" means the Public Utility Holding Company Act of 1935, as from time to time amended.

"QUALIFIED INSTITUTION" means either a commercial bank organized under the laws of, and doing business in, the United States of America or in any State thereof, which has a combined capital, surplus and undivided profits of at least $300,000,000 having trust powers.

"QUARTERLY LEASE CHARGE" shall mean the sum, for any Basic Rent Period, of the aggregate of the Monthly Lease Charges incurred with respect to all portions of the Nuclear Fuel subject to the Fuel Lease at any time during such period.

"RECYCLING" shall mean the use of uranium and/or plutonium or any other material recovered from Nuclear Fuel in the preparation of new Nuclear Fuel.

"REINVESTMENT YIELD" means, with respect to any principal amount of any Series A Note which is to be redeemed or is subject to acceleration, the sum of 50 basis points plus the yield to maturity implied by (i) the yields reported, as of 10:00 A.M. (New York City time) on the Business Day next preceding the date of any prepayment of such principal amount, on the display designated as "Page 678" on the Telerate Service (or such other display as may replace Page 678 on the Telerate Service) for actively traded U.S. Treasury securities having a maturity equal to the Remaining Average Life of such principal amount as of the date of any prepayment of such principal amount, or
(ii) if such yields shall not be reported as of such time or the yields reported as of such time shall not be ascertainable, the Treasury Constant Maturity Series yields reported, for the latest day for which such yields shall have been so reported as of the Business Day next preceding the date of prepayment with respect to such principal amount, in Federal Reserve Statistical Release H.15
(519) (or any comparable successor publication) for actively traded U.S. Treasury securities having a constant maturity equal to the Remaining Average Life of such principal amount as of the date of prepayment of such principal amount. Such implied yield shall be determined, if necessary, by (a) converting U.S. Treasury bill quotations to bond-equivalent yields in accordance with accepted financial practice and (b) interpolating linearly between reported yields.

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"RELATED PERSON" means, with respect to any Person, any trade or business, (whether or not incorporated) which, together with such Person, is under common control as described in Section 414(c) of the Code.

"REMAINING AVERAGE LIFE" means, with respect to any principal amount of any Series A Note which is to be redeemed or is subject to acceleration, the number of years (calculated to the nearest one-twelfth year) obtained by dividing (i) such principal amount into (ii) the sum of the products obtained by multiplying (a) each Remaining Scheduled Payment of such principal amount (but not of interest thereon) by (b) the number of years (calculated to the nearest one-twelfth year) which will elapse between the date of any prepayment with respect to such principal amount and the scheduled due date of such Remaining Scheduled Payment.

"REMAINING SCHEDULED PAYMENTS" means, with respect to any principal amount of any Series A Note which is to be redeemed or is subject to acceleration, all payments of such principal amount and interest thereon that would be due on or after any prepayment with respect to such principal amount if no payment of such principal amount were made prior to its scheduled due date.

"RENT SCHEDULE" shall mean an instrument in substantially the form of Schedule B to the Fuel Lease, used for the purpose of setting forth the N.I.V., Burn-up Charges and Monthly Lease Charges for the Nuclear Fuel.

"REPORTABLE EVENT" means any of the events set forth in Section 4043(b) of ERISA or the regulations thereunder.

"REPROCESSING" shall mean the stage of the Nuclear Fuel Cycle in which the Nuclear Fuel, after it has completed Heat Production and Cooling, is separated into recovered forms of uranium, plutonium and other radioactive materials, or any process or processes used in place thereof.

"RESPONSIBLE OFFICER" means a duly elected or appointed, authorized, and acting officer, agent or representative of the Person acting. "RESPONSIBLE OFFICER," when used with respect to the Indenture Trustee, means any officer of the Indenture Trustee assigned by it to administer its corporate trust matters.

"RESTORATION" shall mean the repair, reconstruction or replacement of all or any portion of the Nuclear Fuel which has been damaged, destroyed, lost, stolen or rendered unusable or which has been affected by a Taking, as nearly as possible to the value, condition and character of such portion, and in its location, immediately prior to such damage, destruction, loss, theft or Taking, or the replacement of any assembly of the Nuclear Fuel so damaged, lost, stolen, destroyed or affected by a Taking with Nuclear Fuel having an equivalent value and Heat

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Production capacity, in any case with only such alterations and additions as may be made at the Lessee's election and as will not diminish the fair market value or usefulness of the Nuclear Fuel so repaired, reconstructed or replaced.

"SECURED OBLIGATIONS" means:

(a) all Note Purchase Agreement Obligations,

(b) all Bank Obligations, and

(c) all obligations of the Company in respect of any Additional Financing which is incurred in compliance with the provisions of
Section 6.13(b) of the Trust Indenture.

"SECURED PARTIES" means (i) the holders from time to time of the Bank Obligations, (ii) the holders from time to time of the Note Purchase Agreement Obligations, and (iii) the lenders under any Additional Financing which is incurred in compliance with the provisions of Section 6.13(b) of the Trust Indenture.

"SECURITY" shall have the same meaning as in Section 2(1) of the Securities Act.

"SECURITIES ACT" means the Securities Act of 1933, as from time to time amended.

"SERIES A NOTEHOLDER" means any Person in whose name a Series A Note is registered.

"SERIES A NOTE PURCHASER" means the Purchasers as defined in Section 2.1 of the Original Note Purchase Agreements.

"SERIES A NOTES" means the Notes issued pursuant to and referred to as such in Sections 2.1 and 12.1 of the Trust Indenture.

"STORAGE FACILITY" shall mean any facility which is used for the purpose of storing the Nuclear Fuel during any stage of the Nuclear Fuel Cycle.

"SUBORDINATED NOTE" means a promissory note of the Company to the Lessee issued pursuant to and containing the legend and provisions required by the Subordination Agreement.

"SUBORDINATION AGREEMENT" means the Subordination Agreement dated as of November 23, 1993 among the Company, the Lessee and the Indenture Trustee.

"TAKING" means a loss of the title to, ownership of, or use and/or possession of Nuclear Fuel or any Generating Facility, or any interest therein or right accruing thereto, as the result of or in lieu or in anticipation of the exercise of the rights of

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condemnation or eminent domain pursuant to any law, general or special, or by reason of the temporary requisition of the use of Nuclear Fuel or any Generating Facility by any governmental authority, civil or military.

"TERMINATION EVENT" has the meaning specified in Section 20(a) of the Fuel Lease.

"TERMINATION NOTICE DATE" is defined in Section 20(b) of the Fuel Lease.

"TERMINATION RENT" shall mean an amount which when added to the Net Investment Value then payable by the Lessee pursuant to Section 20(b) or Section 25(b) of the Fuel Lease, as the case may be, together with funds available to the Lessor from the Collateral Account, will be sufficient to enable the Lessor
(i) to retire, pursuant to the terms of the Basic Documents, all of the Lessor's then outstanding obligations under (A) all Note Purchase Agreements, including all IT Notes issued pursuant thereto, (B) each Credit Agreement, including all Commercial Paper and Bank Notes issued pursuant thereto, (C) all Additional CP, and (D) all Additional Financings, (ii) to pay all charges, premiums and fees owed to all holders of IT Notes under the Note Purchase Agreements applicable thereto and the Banks under a Credit Agreement and to any Assignees thereof and
(iii) to pay all other obligations of the Company incurred in connection with the implementation of the transactions contemplated by the Basic Documents.

"TERMINATION SETTLEMENT DATE" has the meaning specified in Section 20(b) of the Fuel Lease.

"TRUST INDENTURE" or "INDENTURE" means the Trust Indenture dated as of November 23, 1993, between the Lessor and the Indenture Trustee, as the same may from time to time be amended, modified or supplemented by one or more supplemental indentures or other written instruments entered into by the Company and the Indenture Trustee pursuant to the terms of Section 8, 11 or 16 of the Trust Indenture.

"TRUST INDENTURE DEFAULT" means any of the events specified in Section 9.1 of the Trust Indenture, whether or not any requirement for notice or lapse of time or other condition has been satisfied.

"TRUST INDENTURE EVENT OF DEFAULT" has the meaning specified in
Section 9.1 of the Trust Indenture.

"UNAVOIDABLE DELAYS" shall mean delays due to causes not reasonably within the Lessee's control, including but not limited to, acts of civil or military authority (including courts), acts of God, war, riot, insurrection or sit-ins, any act, delay or failure to act on the part of any governmental authority (federal, state or local), blockages, embargoes,

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sabotage, epidemics, fires, floods, storms, strikes, work stoppages, or other labor difficulties, railroad car, barge or truck shortages, wrecks, delays in transportation, breakdowns in equipment or machinery including any component of Lessee's transmission or generating system or any other failure or delay beyond Lessee's reasonable control provided that none of the foregoing causes shall be deemed beyond its reasonable control of the Lessee unless Lessee shall have made reasonable efforts and exercised due diligence to remove such cause, and provided further that lack of funds shall not be deemed a cause beyond the reasonable control of Lessee.

"VOTING STOCK" shall means Securities, the holders of which are ordinarily, in the absence of contingencies, entitled to elect the corporate directors (or Persons performing similar functions).

"YIELD-MAINTENANCE PREMIUM" means, with respect to any Series A Note, a premium equal to the excess, if any, of the Discounted Value of such principal amount of such Series A Note over the sum of (i) such principal amount plus (ii) interest accrued thereon to any prepayment with respect to such principal amount. The Yield-Maintenance Premium shall in no event be less than zero.

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Exhibit (10)-3 Commonwealth Edison Company Form 10-K File No. 1-1839

COMMONWEALTH EDISON COMPANY
1994 LONG-TERM PERFORMANCE UNIT AWARD
FOR EXECUTIVE AND GROUP LEVEL EMPLOYES
PAYABLE IN 1995
UNDER THE
1993 LONG-TERM INCENTIVE PLAN

Commonwealth Edison Company, an Illinois corporation (the "Company"), hereby grants to each employe described in Section 1 hereof (each, an "Employe") as of January 25, 1994 (the "Grant Date"), in accordance with the provisions of the Commonwealth Edison Company 1993 Long-Term Incentive Plan (the "Plan"), a performance unit award (each, an "Award") expressed as a number (the "Base Unit") of performance units, in the amount and upon and subject to the restrictions, terms and conditions set forth below. Capitalized terms not defined herein shall have the meanings specified in the Plan.

1. Recipients of Awards. Recipients of Awards hereunder shall consist of the following employes of the Company and of Commonwealth Edison Company of Indiana, Inc.: (i) each Group Level employe, (ii) each Executive and (iii) each Officer, including, without limitation, the Chairman of the Company, the President of the Company and each Senior Vice President of the Company.

2. Base Unit. The Base Unit for each Award shall be a number (rounded to the nearest whole number) equal to (a) the product of multiplying (i) the Salary (as defined herein) of the Employe receiving such Award by (ii) the applicable percentage set forth below, divided by (b) $27:

Chairman: 25%
President: 25%
Senior Vice Presidents: 20%
Officers, other than as listed above: 15% Executives, other than as listed above: 10% Group Level employes, other than as listed above: 10%

For the purposes of calculating the Base Unit, an Employe's Salary shall be such Employe's monthly scheduled rate of pay as of the Grant Date multiplied by 12 together with the income from such Employe's Deferred Compensation Units.

3. Performance Period. The Performance Period shall commence on January 25, 1994 and end on December 31, 1994.

4. Payment Amount/Stockholder Protection. The amount payable in connection with an Award (a "Payment Amount") shall be a dollar amount based on the Base Unit and on the Company's percentile rank, with the percentile rank corresponding to the highest performance in the performance group being 100 and the


percentile rank corresponding to the lowest performance in the performance group being 1 (the "Company Rank"), in the Ranking (as hereinafter defined) for the Performance Period, and calculated as follows:

Below Threshold Level. If the Company Rank is lower than the 25th percentile in the Ranking, then the Payment Amount shall be zero.

Between Threshold Level and Target Level. If the Company Rank is no lower than the 25th percentile in the Ranking and no higher than the 49th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by a fraction the numerator of which is the Company Rank multiplied by 2 and the denominator of which is 100.

Between Target Level and Maximum Level. If the Company Rank is no lower than the 50th percentile in the Ranking and no higher than the 90th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by a fraction the numerator of which is the Company Rank multiplied by 2.5 minus 25 and the denominator of which is 100.

Above Maximum Level. If the Company Rank is above the 90th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by 2.

Notwithstanding the foregoing, if the Company (or, if the Company becomes a majority owned subsidiary of another corporation, then such parent corporation) fails to maintain regular quarterly cash dividends of at least $.40 per share of Common Stock during the Performance Period (adjusted for any stock-split, stock dividend or other similar event) then the Payment Amount shall be zero.

For purposes of the foregoing, the term "Ranking" shall mean a ranking determined based upon the Cumulative Total Shareholder Return (as hereinafter defined) for such Performance Period on the Company's (or, if the Company becomes a majority owned subsidiary of another corporation, then such parent corporation's) Common Stock as compared to the Cumulative Total Shareholder Return for such Performance Period on the common stock of each corporation comprising the Dow Jones Utility Index (or any successor index); the term "Cumulative Total Shareholder Return" for a period shall mean the result obtained by dividing (i) the sum of (a) the cumulative amount of dividends on the common stock in question for such period, assuming reinvestment of said dividends in said common stock, and (b) the difference between the price per share of said common stock at the end and the beginning of such period, by (ii) the price per share of said common stock at the beginning of such period; and the term "Base Value" shall mean the result obtained by multiplying the Base Unit by the value of a share of Common Stock (as determined under Section 5 hereof).

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5. Settlement of Awards. The Payment Amount shall become payable upon the completion of the Performance Period and shall be paid by the Company within 90 days after the completion of the Performance Period. The Payment Amount shall be paid 50% in cash and 50% in shares of Common Stock. Fractional shares of Common Stock that may become payable hereunder shall be paid in cash. For the purposes of determining the number of shares of Common Stock payable pursuant to this Section, a share of Common Stock shall be valued at the average of the closing prices of a share of Common Stock as reported in The Wall Street Journal as New York Stock Exchange Composite Transactions during the calendar quarter ending on the last day of the Performance Period (appropriately adjusted for any stock-split, stock dividend or other similar event).

6. Termination of Employment. If an Employe voluntarily terminates employment with the Company prior to the completion of the Performance Period or Employe's employment with the Company is terminated by the Company for cause (including, without limitation, a termination due to Employe's gross misconduct), then no amount shall be payable hereunder. Except as set forth in the immediately preceding sentence, if an Employe's employment with the Company is terminated prior to the completion of the Performance Period and at least six months after the commencement of the Performance Period, then the Employe shall be entitled to a Payment Amount calculated in accordance with Section 5 hereof, except that the calculation of the Payment Amount shall be made as of the date of such termination, multiplied by a fraction the numerator of which is the number of days in the Performance Period that have elapsed between the commencement of the Performance Period and the date of such termination and the denominator of which is the number of days in the Performance Period. The Payment Amount calculated in accordance with the immediately preceding sentence shall be paid within 90 days after the date of such termination; provided, however, that if the Ranking under Section 5 cannot be calculated as though the Performance Period ended on the date of such termination, then such Ranking shall be calculated as though the Performance Period ended on the most recent date prior to the date of such termination for which such Ranking can be calculated. As used in this Section 6, employment by the Company shall include employment by a corporation which is a "subsidiary corporation" of the Company, as such term is defined in section 424 (and any successor section) of the Internal Revenue Code of 1986, as amended, or any successor internal revenue law.

7. Rights as a Stockholder. No Employe shall have any rights as a stockholder of the Company with respect to any shares of Common Stock that may be payable hereunder unless and until such shares have been issued to such Employe or otherwise credited to an account for the benefit of such Employe.

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8. Additional Terms and Conditions of Award.

8.1. Nontransferability of Award. In accordance with Section 13.5 of the Plan, no Award or other related benefit may, except as otherwise specifically provided by the Plan or by law, be transferable in any manner other than by will or the laws of descent and distribution, and any attempt to transfer any such Award or other benefit shall be void; provided, however, that the foregoing shall not restrict the ability of any Employe to transfer any cash or Common Stock received as part of the Payment Amount. In accordance with Section 13.5 of the Plan, Awards or other benefits payable under Awards shall not in any manner be subject to the debts, contracts, liabilities, engagements or torts of any person who shall be entitled to such Award or benefits, nor shall they be subject to attachment or legal process for or against such person.

8.2. Withholding Taxes. As a condition precedent to the delivery to the Employe of cash or Common Stock hereunder and in accordance with Section 13.4 of the Plan, the Company may deduct from any amount (including any Payment Amount) payable then or thereafter payable by the Company to the Employe, or may request the Employe to pay to the Company in cash, such amount as the Company may be required, under all applicable federal, state, local or other laws or regulations, to withhold and pay over with respect to the Award.

8.3. Compliance with Applicable Law. Each Award is subject to the condition that if the listing, registration or qualification of the shares of Common Stock subject to the Award upon any securities exchange or under any law, or the consent or approval of any governmental body, or the taking of any other action is necessary or desirable as a condition of, or in connection with, the vesting or delivery of such shares hereunder, such shares may not be delivered, in whole or in part, unless such listing, registration, qualification, consent or approval shall have been effected or obtained.

8.4. Award Subject to the Plan. This Award is subject to the provisions of the Plan, and shall be interpreted in accordance therewith.

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Exhibit (10)-4 Commonwealth Edison Company Form 10-K File No. 1-1839

COMMONWEALTH EDISON COMPANY
1994 LONG-TERM PERFORMANCE UNIT AWARD
FOR EXECUTIVE AND GROUP LEVEL EMPLOYES
PAYABLE IN 1996
UNDER THE
1993 LONG-TERM INCENTIVE PLAN

Commonwealth Edison Company, an Illinois corporation (the "Company"), hereby grants to each employe described in Section 1 hereof (each, an "Employe") as of January 25, 1994 (the "Grant Date"), in accordance with the provisions of the Commonwealth Edison Company 1993 Long-Term Incentive Plan (the "Plan"), a performance unit award (each, an "Award") expressed as a number (the "Base Unit") of performance units, in the amount and upon and subject to the restrictions, terms and conditions set forth below. Capitalized terms not defined herein shall have the meanings specified in the Plan.

1. Recipients of Awards. Recipients of Awards hereunder shall consist of the following employes of the Company and of Commonwealth Edison Company of Indiana, Inc.: (i) each Group Level employe, (ii) each Executive and (iii) each Officer, including, without limitation, the Chairman of the Company, the President of the Company and each Senior Vice President of the Company.

2. Base Unit. The Base Unit for each Award shall be a number (rounded to the nearest whole number) equal to (a) the product of multiplying (i) the Salary (as defined herein) of the Employe receiving such Award by (ii) the applicable percentage set forth below, divided by (b) $27:

Chairman: 25%
President: 25%
Senior Vice Presidents: 20%
Officers, other than as listed above: 15% Executives, other than as listed above: 10% Group Level employes, other than as listed above: 10%

For the purposes of calculating the Base Unit, an Employe's Salary shall be such Employe's monthly scheduled rate of pay as of the Grant Date multiplied by 12 together with the income from such Employe's Deferred Compensation Units.

3. Performance Period. The Performance Period shall commence on January 25, 1994 and end on December 31, 1995.

4. Payment Amount/Stockholder Protection. The amount payable in connection with an Award (a "Payment Amount") shall be a dollar amount based on the Base Unit and on the Company's percentile rank, with the percentile rank corresponding to the highest performance in the performance group being 100 and the


percentile rank corresponding to the lowest performance in the performance group being 1 (the "Company Rank"), in the Ranking (as hereinafter defined) for the Performance Period, and calculated as follows:

Below Threshold Level. If the Company Rank is lower than the 25th percentile in the Ranking, then the Payment Amount shall be zero.

Between Threshold Level and Target Level. If the Company Rank is no lower than the 25th percentile in the Ranking and no higher than the 49th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by a fraction the numerator of which is the Company Rank multiplied by 2 and the denominator of which is 100.

Between Target Level and Maximum Level. If the Company Rank is no lower than the 50th percentile in the Ranking and no higher than the 90th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by a fraction the numerator of which is the Company Rank multiplied by 2.5 minus 25 and the denominator of which is 100.

Above Maximum Level. If the Company Rank is above the 90th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by 2.

Notwithstanding the foregoing, if the Company (or, if the Company becomes a majority owned subsidiary of another corporation, then such parent corporation) fails to maintain regular quarterly cash dividends of at least $.40 per share of Common Stock during the Performance Period (adjusted for any stock-split, stock dividend or other similar event) then the Payment Amount shall be zero.

For purposes of the foregoing, the term "Ranking" shall mean a ranking determined based upon the Cumulative Total Shareholder Return (as hereinafter defined) for such Performance Period on the Company's (or, if the Company becomes a majority owned subsidiary of another corporation, then such parent corporation's) Common Stock as compared to the Cumulative Total Shareholder Return for such Performance Period on the common stock of each corporation comprising the Dow Jones Utility Index (or any successor index); the term "Cumulative Total Shareholder Return" for a period shall mean the result obtained by dividing (i) the sum of (a) the cumulative amount of dividends on the common stock in question for such period, assuming reinvestment of said dividends in said common stock, and (b) the difference between the price per share of said common stock at the end and the beginning of such period, by (ii) the price per share of said common stock at the beginning of such period; and the term "Base Value" shall mean the result obtained by multiplying the Base Unit by the value of a share of Common Stock (as determined under Section 5 hereof).

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5. Settlement of Awards. The Payment Amount shall become payable upon the completion of the Performance Period and shall be paid by the Company within 90 days after the completion of the Performance Period. The Payment Amount shall be paid 50% in cash and 50% in shares of Common Stock. Fractional shares of Common Stock that may become payable hereunder shall be paid in cash. For the purposes of determining the number of shares of Common Stock payable pursuant to this Section, a share of Common Stock shall be valued at the average of the closing prices of a share of Common Stock as reported in The Wall Street Journal as New York Stock Exchange Composite Transactions during the calendar quarter ending on the last day of the Performance Period (appropriately adjusted for any stock-split, stock dividend or other similar event).

6. Termination of Employment. If an Employe voluntarily terminates employment with the Company prior to the completion of the Performance Period or Employe's employment with the Company is terminated by the Company for cause (including, without limitation, a termination due to Employe's gross misconduct), then no amount shall be payable hereunder. Except as set forth in the immediately preceding sentence, if an Employe's employment with the Company is terminated prior to the completion of the Performance Period and at least six months after the commencement of the Performance Period, then the Employe shall be entitled to a Payment Amount calculated in accordance with Section 5 hereof, except that the calculation of the Payment Amount shall be made as of the date of such termination, multiplied by a fraction the numerator of which is the number of days in the Performance Period that have elapsed between the commencement of the Performance Period and the date of such termination and the denominator of which is the number of days in the Performance Period. The Payment Amount calculated in accordance with the immediately preceding sentence shall be paid within 90 days after the date of such termination; provided, however, that if the Ranking under Section 5 cannot be calculated as though the Performance Period ended on the date of such termination, then such Ranking shall be calculated as though the Performance Period ended on the most recent date prior to the date of such termination for which such Ranking can be calculated. As used in this Section 6, employment by the Company shall include employment by a corporation which is a "subsidiary corporation" of the Company, as such term is defined in section 424 (and any successor section) of the Internal Revenue Code of 1986, as amended, or any successor internal revenue law.

7. Rights as a Stockholder. No Employe shall have any rights as a stockholder of the Company with respect to any shares of Common Stock that may be payable hereunder unless and until such shares have been issued to such Employe or otherwise credited to an account for the benefit of such Employe.

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8. Additional Terms and Conditions of Award.

8.1. Nontransferability of Award. In accordance with Section 13.5 of the Plan, no Award or other related benefit may, except as otherwise specifically provided by the Plan or by law, be transferable in any manner other than by will or the laws of descent and distribution, and any attempt to transfer any such Award or other benefit shall be void; provided, however, that the foregoing shall not restrict the ability of any Employe to transfer any cash or Common Stock received as part of the Payment Amount. In accordance with Section 13.5 of the Plan, Awards or other benefits payable under Awards shall not in any manner be subject to the debts, contracts, liabilities, engagements or torts of any person who shall be entitled to such Award or benefits, nor shall they be subject to attachment or legal process for or against such person.

8.2. Withholding Taxes. As a condition precedent to the delivery to the Employe of cash or Common Stock hereunder and in accordance with Section 13.4 of the Plan, the Company may deduct from any amount (including any Payment Amount) payable then or thereafter payable by the Company to the Employe, or may request the Employe to pay to the Company in cash, such amount as the Company may be required, under all applicable federal, state, local or other laws or regulations, to withhold and pay over with respect to the Award.

8.3. Compliance with Applicable Law. Each Award is subject to the condition that if the listing, registration or qualification of the shares of Common Stock subject to the Award upon any securities exchange or under any law, or the consent or approval of any governmental body, or the taking of any other action is necessary or desirable as a condition of, or in connection with, the vesting or delivery of such shares hereunder, such shares may not be delivered, in whole or in part, unless such listing, registration, qualification, consent or approval shall have been effected or obtained.

8.4. Award Subject to the Plan. This Award is subject to the provisions of the Plan, and shall be interpreted in accordance therewith.

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Exhibit (10)-5 Commonwealth Edison Company Form 10-K File No. 1-1839

COMMONWEALTH EDISON COMPANY
1994 LONG-TERM PERFORMANCE UNIT AWARD
FOR EXECUTIVE AND GROUP LEVEL EMPLOYES
PAYABLE IN 1997
UNDER THE
1993 LONG-TERM INCENTIVE PLAN

Commonwealth Edison Company, an Illinois corporation (the "Company"), hereby grants to each employe described in Section 1 hereof (each, an "Employe") as of January 25, 1994 (the "Grant Date"), in accordance with the provisions of the Commonwealth Edison Company 1993 Long-Term Incentive Plan (the "Plan"), a performance unit award (each, an "Award") expressed as a number (the "Base Unit") of performance units, in the amount and upon and subject to the restrictions, terms and conditions set forth below. Capitalized terms not defined herein shall have the meanings specified in the Plan.

1. Recipients of Awards. Recipients of Awards hereunder shall consist of the following employes of the Company and of Commonwealth Edison Company of Indiana, Inc.: (i) each Group Level employe, (ii) each Executive and (iii) each Officer, including, without limitation, the Chairman of the Company, the President of the Company and each Senior Vice President of the Company.

2. Base Unit. The Base Unit for each Award shall be a number (rounded to the nearest whole number) equal to (a) the product of multiplying (i) the Salary (as defined herein) of the Employe receiving such Award by (ii) the applicable percentage set forth below, divided by (b) $27:

Chairman: 50%
President: 50%
Senior Vice Presidents: 40%
Officers, other than as listed above: 30% Executives, other than as listed above: 20% Group Level employes, other than as listed above: 20%

For the purposes of calculating the Base Unit, an Employe's Salary shall be such Employe's monthly scheduled rate of pay as of the Grant Date multiplied by 12 together with the income from such Employe's Deferred Compensation Units.

3. Performance Period. The Performance Period shall commence on January 25, 1994 and end on December 31, 1996.

4. Payment Amount/Stockholder Protection. The amount payable in connection with an Award (a "Payment Amount") shall be a dollar amount based on the Base Unit and on the Company's percentile rank, with the percentile rank corresponding to the highest performance in the performance group being 100 and the


percentile rank corresponding to the lowest performance in the performance group being 1 (the "Company Rank"), in the Ranking (as hereinafter defined) for the Performance Period, and calculated as follows:

Below Threshold Level. If the Company Rank is lower than the 25th percentile in the Ranking, then the Payment Amount shall be zero.

Between Threshold Level and Target Level. If the Company Rank is no lower than the 25th percentile in the Ranking and no higher than the 49th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by a fraction the numerator of which is the Company Rank multiplied by 2 and the denominator of which is 100.

Between Target Level and Maximum Level. If the Company Rank is no lower than the 50th percentile in the Ranking and no higher than the 90th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by a fraction the numerator of which is the Company Rank multiplied by 2.5 minus 25 and the denominator of which is 100.

Above Maximum Level. If the Company Rank is above the 90th percentile in the Ranking, then the Payment Amount shall be the Base Value multiplied by 2.

Notwithstanding the foregoing, if the Company (or, if the Company becomes a majority owned subsidiary of another corporation, then such parent corporation) fails to maintain regular quarterly cash dividends of at least $.40 per share of Common Stock during the Performance Period (adjusted for any stock-split, stock dividend or other similar event) then the Payment Amount shall be zero.

For purposes of the foregoing, the term "Ranking" shall mean a ranking determined based upon the Cumulative Total Shareholder Return (as hereinafter defined) for such Performance Period on the Company's (or, if the Company becomes a majority owned subsidiary of another corporation, then such parent corporation's) Common Stock as compared to the Cumulative Total Shareholder Return for such Performance Period on the common stock of each corporation comprising the Dow Jones Utility Index (or any successor index); the term "Cumulative Total Shareholder Return" for a period shall mean the result obtained by dividing (i) the sum of (a) the cumulative amount of dividends on the common stock in question for such period, assuming reinvestment of said dividends in said common stock, and (b) the difference between the price per share of said common stock at the end and the beginning of such period, by (ii) the price per share of said common stock at the beginning of such period; and the term "Base Value" shall mean the result obtained by multiplying the Base Unit by the value of a share of Common Stock (as determined under Section 5 hereof).

-2-

5. Settlement of Awards. The Payment Amount shall become payable upon the completion of the Performance Period and shall be paid by the Company within 90 days after the completion of the Performance Period. The Payment Amount shall be paid 50% in cash and 50% in shares of Common Stock. Fractional shares of Common Stock that may become payable hereunder shall be paid in cash. For the purposes of determining the number of shares of Common Stock payable pursuant to this Section, a share of Common Stock shall be valued at the average of the closing prices of a share of Common Stock as reported in The Wall Street Journal as New York Stock Exchange Composite Transactions during the calendar quarter ending on the last day of the Performance Period (appropriately adjusted for any stock-split, stock dividend or other similar event).

6. Termination of Employment. If an Employe voluntarily terminates employment with the Company prior to the completion of the Performance Period or Employe's employment with the Company is terminated by the Company for cause (including, without limitation, a termination due to Employe's gross misconduct), then no amount shall be payable hereunder. Except as set forth in the immediately preceding sentence, if an Employe's employment with the Company is terminated prior to the completion of the Performance Period and at least six months after the commencement of the Performance Period, then the Employe shall be entitled to a Payment Amount calculated in accordance with Section 5 hereof, except that the calculation of the Payment Amount shall be made as of the date of such termination, multiplied by a fraction the numerator of which is the number of days in the Performance Period that have elapsed between the commencement of the Performance Period and the date of such termination and the denominator of which is the number of days in the Performance Period. The Payment Amount calculated in accordance with the immediately preceding sentence shall be paid within 90 days after the date of such termination; provided, however, that if the Ranking under Section 5 cannot be calculated as though the Performance Period ended on the date of such termination, then such Ranking shall be calculated as though the Performance Period ended on the most recent date prior to the date of such termination for which such Ranking can be calculated. As used in this Section 6, employment by the Company shall include employment by a corporation which is a "subsidiary corporation" of the Company, as such term is defined in section 424 (and any successor section) of the Internal Revenue Code of 1986, as amended, or any successor internal revenue law.

7. Rights as a Stockholder. No Employe shall have any rights as a stockholder of the Company with respect to any shares of Common Stock that may be payable hereunder unless and until such shares have been issued to such Employe or otherwise credited to an account for the benefit of such Employe.

-3-

8. Additional Terms and Conditions of Award.

8.1. Nontransferability of Award. In accordance with Section 13.5 of the Plan, no Award or other related benefit may, except as otherwise specifically provided by the Plan or by law, be transferable in any manner other than by will or the laws of descent and distribution, and any attempt to transfer any such Award or other benefit shall be void; provided, however, that the foregoing shall not restrict the ability of any Employe to transfer any cash or Common Stock received as part of the Payment Amount. In accordance with Section 13.5 of the Plan, Awards or other benefits payable under Awards shall not in any manner be subject to the debts, contracts, liabilities, engagements or torts of any person who shall be entitled to such Award or benefits, nor shall they be subject to attachment or legal process for or against such person.

8.2. Withholding Taxes. As a condition precedent to the delivery to the Employe of cash or Common Stock hereunder and in accordance with Section 13.4 of the Plan, the Company may deduct from any amount (including any Payment Amount) payable then or thereafter payable by the Company to the Employe, or may request the Employe to pay to the Company in cash, such amount as the Company may be required, under all applicable federal, state, local or other laws or regulations, to withhold and pay over with respect to the Award.

8.3. Compliance with Applicable Law. Each Award is subject to the condition that if the listing, registration or qualification of the shares of Common Stock subject to the Award upon any securities exchange or under any law, or the consent or approval of any governmental body, or the taking of any other action is necessary or desirable as a condition of, or in connection with, the vesting or delivery of such shares hereunder, such shares may not be delivered, in whole or in part, unless such listing, registration, qualification, consent or approval shall have been effected or obtained.

8.4. Award Subject to the Plan. This Award is subject to the provisions of the Plan, and shall be interpreted in accordance therewith.

-4-

Exhibit (10)-6 Commonwealth Edison Company Form 10-K File No. 1-1839

COMMONWEALTH EDISON COMPANY

1994 VARIABLE COMPENSATION AWARD FOR MANAGEMENT EMPLOYES

UNDER THE 1993 LONG-TERM INCENTIVE PLAN

Commonwealth Edison Company, an Illinois corporation (the "Company"), hereby grants to each employe described in Section 1 hereof (each, an "Employe"), as of January 1, 1994 (the "Grant Date"), in accordance with the provisions of the Commonwealth Edison Company 1993 Long-Term Incentive Plan (the "Plan"), a performance unit award (each, an "Award"), expressed as a number of performance units, in the amount and upon and subject to the restrictions, terms and conditions set forth below and in Appendix A attached hereto. Capitalized terms not defined herein shall have the meanings specified in the Plan.

1. Recipients of Awards. Subject in all respects to the provisions hereof, recipients of Awards hereunder shall consist of each employe of the Company (other than the Chairman and the President) and of Commonwealth Edison Company of Indiana, Inc. (collectively, the "Employers") who is on the management or executive payroll during calendar year 1994; provided, however, that no employe shall be the recipient of an Award if such employe participates in, or is eligible to participate in, any of the following incentive plans:

The Nuclear Site-Vice President Incentive Plan

The Procurement Effectiveness Re-engineering Team Plan

The Pension Fund Management Incentive Pay Plan

The Fuel Department Incentive Plan

2. Base Unit. The Base Unit for each Award shall be the number which is equal to the number of dollars determined by multiplying the Base Pay (as defined herein) of the Employe receiving the Award by the conversion factor of 1.25% and rounding up to the nearest whole dollar. For purposes of calculating the Base Unit, Base Pay shall mean an Employe's monthly scheduled rate of pay, determined as of the Grant Date, multiplied by 12 together with the income from such Employe's Deferred Compensation Units if such Employe is Grade 12 or above.

3. Payment Amount. The total amount payable in connection with an Award (the "Payment Amount") may consist solely of a cash payment (the "Cash Payment Amount") or may consist of a Cash Payment Amount and a payment of Common Stock (the "Stock Payment Amount"), as determined below.


a. Cash Payment Amount. The Cash Payment Amount shall be the dollar amount computed by multiplying the Employe's Base Unit by the applicable performance unit set forth below under the column titled "Cash" that corresponds to the Employe's category of employment and the level of performance goals achieved as set forth in Appendix A attached hereto that are applicable to the Employe.

b. Stock Payment Amount. The Stock Payment Amount shall be the dollar amount computed by multiplying the Employe's Base Unit by the applicable performance unit set forth below under the column titled "Stock" that corresponds to the Employe's category of employment and the level of performance goals achieved as set forth in Appendix A attached hereto that are applicable to the Employe.

PERFORMANCE UNITS

                THRESHOLD           TARGET          DISTINGUISHED
                ---------           ------          -------------
CATEGORY      CASH    STOCK      CASH    STOCK      CASH    STOCK
RATED           2       0          6       0         10       2

GROUP           2       0          7       5          7      18

EXECUTIVE       2       0          6      12          6      34

4. Reduction of Payment Amount for Less than a Full Year of Employment. In the event that an Employe either (i) is first placed on the management or executive payroll after January 1, 1994, or (ii) is on a leave of absence during 1994, including an extended medical leave, each of the Cash Payment Amount and the Stock Payment Amount will be a reduced amount equal to each of the amounts determined above multiplied by a fraction, the numerator of which is the number of full months the Employe worked during 1994 and the denominator of which is twelve months. For an Employe who is a part-time Employe described in clause
(i) or (ii) of the preceding sentence, the reduction provided in this Section shall be made after the reduction set forth in Section 5 is made.

5. Reduction of Payment Amount for Part-Time Employes. For an Employe who is a part-time Employe, each of the Payment Amount and the Stock Payment Amount will be a reduced amount equal to the amount determined above multiplied by a fraction, the numerator of which is the number of hours the Employe was scheduled to work during 1994 and the denominator of which is 2080 hours.

6. Stockholder Protection. Notwithstanding anything herein to the contrary, no amount shall be paid hereunder unless the following two conditions are satisfied:

a. The Company (or, if the Company becomes a majority owned subsidiary of another corporation, then such parent corporation) maintains regular quarterly cash dividends of at least $.40 per share of Common Stock during the calendar year

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1994 (adjusted for any stock-split, stock dividend or other similar event).

b. The sum of the amounts actually incurred by the Company for operations and maintenance and for capital expenditures for the calendar year 1994 is at least $90 million less than the sum of the amounts budgeted therefor by the Company for the calendar year 1994; provided that at least 50% of the reduction is attributable to reduced expenses for operations and maintenance.

7. Failure to Achieve "Meeting All Expectations" Rating. An Employe who fails to receive at least a "meeting all expectations" rating under the Performance Evaluation, Career Development and/or Succession Planning (or the equivalent thereof) with respect to performance in 1994 shall not receive any amount hereunder.

8. Settlement of Awards. The Payment Amount, if any, will be paid to an Employe as soon as practicable after the Company's audited financial results are available for the calendar year 1994. The number of shares of Common Stock payable to an Employe with respect to an Award shall be computed by dividing the Stock Payment Amount by the value of one share of Common Stock. Fractional shares of Common Stock that may become payable hereunder shall be paid in cash. For purposes of this Section, the value of a share of Common Stock shall be the average of the closing prices of a share of Common Stock as reported in The Wall Street Journal as New York Stock Exchange Composite Transactions during the last calendar quarter of 1994 (appropriately adjusted for any stock-split, stock dividend or other similar event).

9. Termination of Employment. An Employe whose employment with the Employers is terminated prior to December 31, 1994 for any reason other than death or retirement under the pension plan of any one of the Employers shall not be entitled to any payment under the Plan.

10. Rights as a Stockholder. No Employe shall have any rights as a stockholder of the Company with respect to any shares of Common Stock that may be payable hereunder unless and until such shares shall have been issued to such Employe or otherwise credited to an account for the benefit of such Employe.

11. Additional Terms and Conditions of Award.

11.1 Nontransferability of Award. In accordance with Section 13.5 of the Plan, no Award or other related benefit may, except as otherwise specifically provided by the Plan or by law, be transferable in any manner other than by will or the laws of descent and distribution, and any attempt to transfer any such Award or other benefit shall be void; provided, however, that the foregoing shall not restrict the ability of any Employe to transfer any cash or Common Stock received as part of the Payment Amount.

-3-

In accordance with Section 13.5 of the Plan, Awards or other benefits payable under Awards shall not in any manner be subject to the debts, contracts, liabilities, engagements or torts of any person who shall be entitled to such Award or benefits, nor shall they be subject to attachment or legal process for or against such person.

11.2. Withholding Taxes. As a condition precedent to the delivery to the Employe of cash or Common Stock hereunder and in accordance with Section 13.4 of the Plan, the Company may deduct from any amount (including any Payment Amount) payable then or thereafter payable by the Company to the Employe, or may request the Employe to pay to the Company in cash, such amount as the Company may be required, under all applicable federal, state, local or other laws or regulations, to withhold and pay over with respect to the Award.

11.3 Compliance with Applicable Law. Each Award is subject to the condition that if the listing, registration or qualification of the shares of Common Stock subject to the Award upon any securities exchange or under any law, or the consent or approval of any governmental body, or the taking of any other action is necessary or desirable as a condition of, or in connection with, the vesting or delivery of such shares hereunder, such shares may not be delivered, in whole or in part, unless such listing, registration, qualification, consent or approval shall have been effected or obtained.

11.4. Award Subject to the Plan. This Award is subject to the provisions of the Plan, and shall be interpreted in accordance therewith.

-4-

Exhibit (12) Commonwealth Edison Company Form 10-K File No. 1-1839

Commonwealth Edison Company and Subsidiary Companies Consolidated

Computation of Ratios of Earnings to Fixed Charges and Ratios of Earnings to Fixed Charges and Preferred and Preference Stock Dividend Requirements

- Thousands of Dollars -

                                                                                     Twelve Months Ended
                                                                                -----------------------------
Line                                                                            December 31,     December 31,
 No.                                                                                1992             1993
- ----                                                                            ------------     ------------
 1   Net income                                                                 $  513,981       $112,440
                                                                                ----------       --------

 2   Net provisions for income taxes and investment
 3     tax credits deferred charged to-
 4       Operations                                                             $  272,547       $ 65,827
 5       Cumulative effect of change in accounting for income taxes                      -         (9,738)
 6       Other income                                                               (6,549)       (30,753)
                                                                                ----------       --------
 7                                                                              $  265,998       $ 25,336
                                                                                ----------       --------
 8   Fixed charges-
 9       Interest on debt                                                       $  661,348       $651,639
10       Estimated interest component of nuclear fuel and
11         other lease payments, rentals and other interest                         53,348         49,021
12       Amortization of debt discount, premium and expense                         20,178         20,966
                                                                                ----------       --------
13                                                                              $  734,874       $721,626
                                                                                ----------       --------
14   Preferred and preference stock dividend requirements-
15       Provisions for preferred and preference stock dividends                $   70,539       $ 66,052
16       Taxes on income required to meet provisions for
17         preferred and preference stock dividends                                 44,646         43,596
                                                                                ----------       --------
18                                                                              $  115,185       $109,648
                                                                                ----------       --------
19   Fixed charges and preferred and preference stock
20     dividend requirements                                                    $  850,059       $831,274
                                                                                ----------       --------
21   Earned for fixed charges and preferred and preference stock
22     dividend requirements                                                    $1,514,853       $859,402
                                                                                ----------       --------
23   Ratios of earnings to fixed charges (line 22 divided by line 13)                 2.06           1.19
                                                                                      ====           ====
24   Ratios of earnings to fixed charges and preferred
25     and preference stock dividend requirements (line 22 divided by line 20)        1.78           1.03
                                                                                      ====           ====




Exhibit (21) Commonwealth Edison Company Form 10-K File No. 1-1839

Commonwealth Edison Company Subsidiaries of the Company

                                                        State or
                                                      Jurisdiction
                                                        in Which
                   Name                               Incorporated
- ----------------------------------------------        ------------
Commonwealth Edison Company of Indiana, Inc. *         Indiana
CECo Enterprises Inc. *                                Illinois
Northwind Inc.*                                        Illinois
CECo Holding Company                                   Illinois
CECo Merging Corporation                               Illinois
Edison Development Company                             Delaware
Cotter Corporation                                     New Mexico
Commonwealth Research Corporation                      Illinois
Concomber, Ltd.                                        Bermuda
Edison Development Canada Inc.                         Canada

* Included in the consolidated financial statements.


Exhibit (23) Commonwealth Edison Company Form 10-K File No. 1-1839

CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by reference in this Form 10-K of our report dated March 18, 1994, on the consolidated financial statements of Commonwealth Edison Company and subsidiary companies (Company) as of and for the year ended December 31, 1993 (Report), included in the Company's Current Report on Form 8-K/A-1 dated January 28, 1994, to the inclusion in this Form 10-K of our report dated March 18, 1994, on the supplemental schedules of the Company as of and for the year ended December 31, 1993, and to the incorporation of such reports into the Company's previously filed prospectuses as follows: (1) prospectus dated June 1, 1988, constituting part of Form S-8 Registration Statement File No. 2-76921 (relating to the Company's Employe Stock Purchase Plan); (2) prospectus dated August 1, 1992, constituting part of Form S-8 Registration Statement File Nos. 2-81592 and 33- 5061, as amended (relating to the Company's Employe Savings and Investment Plan); (3) prospectus dated August 21, 1986, constituting part of Form S-3 Registration Statement File No. 33-6879, as amended (relating to the Company's Debt Securities and Common Stock); (4) prospectus dated February 14, 1991, constituting part of Form S-3 Registration Statement File No. 33-38233 (relating to the Company's Debt Securities and Cumulative Preference Stock); (5) prospectus dated January 7, 1994, constituting part of Form S-3 Registration Statement File No. 33-51379 (relating to the Company's Debt Securities and Cumulative Preference Stock); and (6) prospectus dated March 18, 1994, constituting part of Form S-4 Registration Statement File No. 33-52109, as amended (relating to Common Stock of CECo Holding Company). We also consent to the application of our Report, incorporated by reference in this Form 10-K, to the ratios of earnings to fixed charges and the ratios of earnings to fixed charges and preferred and preference stock dividend requirements for each of the three years ended December 31, 1993, 1992 and 1991 appearing on page 22 of the Current Report on Form 8-K/A-1 dated January 28, 1994.

ARTHUR ANDERSEN & CO.

Chicago, Illinois

March 28, 1994


Exhibit (24) Commonwealth Edison Company Form 10-K File No. 1-1839

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10 day of March, 1994.

     /s/ Jean Allard
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that JEAN ALLARD, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that she signed and delivered said instrument as her free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10th day of March, 1994.

   /s/ James W. Compton
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that JAMES W. COMPTON, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth .

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10 day of March, 1994.

      /s/ Sue L. Gin
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that SUE L. GIN, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that she signed and delivered said instrument as her free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10 day of March, 1994.

   /s/ Donald P. Jacobs
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that DONALD P. JACOBS, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10 day of March, 1994.

  /s/ George E. Johnson
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that GEORGE E. JOHNSON, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10 day of March, 1994.

    /s/ Harvey Kapnick
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that HARVEY KAPNICK, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10th day of March, 1994.

    /s/ Byron Lee Jr.
-----------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that BYRON LEE, JR., personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10th day of March, 1994.

   /s/ Edward A. Mason
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that EDWARD A. MASON, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10th day of March, 1994.

     /s/ F. A. Olson
------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that FRANK A. OLSON, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director and Officer of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR and DAVID A. SCHOLZ and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and Officer, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10 day of March, 1994.

  /s/ Samuel K. Skinner
-------------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that SAMUEL K. SKINNER, personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

That the undersigned, a Director of Commonwealth Edison Company, an Illinois corporation, does hereby constitute and appoint JAMES J. O'CONNOR, SAMUEL K. SKINNER and DAVID A. SCHOLZ, and each of them, his true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director, the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1993, to be filed with the Securities and Exchange Commission pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended; hereby granting to such attorneys and agents, and each of them, full power of substitution and revocation in the premises; and hereby ratifying and confirming all that such attorneys and agents, or any of them, may do or cause to be done by virtue of these presents.

IN WITNESS WHEREOF, I have hereunto set my hand this 10th day of March, 1994.

  /s/ Lando W. Zech Jr.
-----------------------------

STATE OF ILLINOIS )
) SS
COUNTY OF COOK )

I, Mary T. Snyder, a Notary Public in and for said County, in the State aforesaid, DO HEREBY CERTIFY that LANDO W. ZECH, JR., personally known to me to be the same person whose name is subscribed to the foregoing instrument, appeared before me this day in person, and acknowledged that he signed and delivered said instrument as his free and voluntary act, for the uses and purposes therein set forth.

GIVEN under my hand and notarial seal this 10 day of March, 1994.

  /s/ Mary T. Snyder
-------------------------
    Notary Public

(SEAL)


Exhibit (99) Commonwealth Edison Company Form 10-K File No. 1-1839

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 8-K/A-1

CURRENT REPORT

Pursuant to Section l3 or l5(d) of
the Securities Exchange Act of l934

Date of Report (Date of
earliest event reported):   January 28, 1994



                          Commonwealth Edison Company

(Exact name of registrant as specified in its charter)

    Illinois                        1-1839                    36-0938600
(State or other                  (Commission                 (IRS Employer
 jurisdiction of                 File Number)              Identification No.)
 incorporation)


37th Floor, One First National Plaza,
Post Office Box 767, Chicago, Illinois                         60690-0767
(Address of principal executive offices)                       (Zip Code)



Registrant's telephone number,
including area code:                                          (312) 394-4321


The purpose of this Amendment No. 1 is to amend the exhibits to the Registrant's (Commonwealth Edison Company) Current Report on Form 8-K dated January 28, 1994, by refiling those exhibits in their entirety.

Item 7. Financial Statements, Pro Forma Financial

- -------  Information and Exhibits
         -----------------------------------------

         (c)  Exhibits
              --------

(23) Consent of Independent Public Accountants

(99) Commonwealth Edison Company and Subsidiary Companies - Certain Financial Information as of and for the Year Ended December 31, 1993:

--Management's Discussion and Analysis of Financial Condition and Results of Operations --Statements of Consolidated Income --Consolidated Balance Sheets
--Statements of Consolidated Capitalization --Statements of Consolidated Cash Flows --Statements of Consolidated Retained Earnings --Statements of Consolidated Premium on Common Stock and Other Paid-in Capital
--Notes to Financial Statements
--Report of Independent Public Accountants

-2-

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

COMMONWEALTH EDISON COMPANY
(Registrant)

                                               By: /s/ John C. Bukovski
                                                   --------------------------
                                                    John C. Bukovski
                                                    Vice President


Date:  March 18, 1994

-3-

EXHIBIT INDEX

EXHIBIT
NUMBER                      DESCRIPTION OF EXHIBIT
- ------                      ----------------------

23                Consent of Independent Public Accountants

99                Commonwealth Edison Company and Subsidiary
                  Companies - Certain Financial Information as of
                  and for the Year Ended December 31, 1993:

                  --Management's Discussion and Analysis of
                      Financial Condition and Results of Operations
                  --Statements of Consolidated Income
                  --Consolidated Balance Sheets
                  --Statements of Consolidated Capitalization
                  --Statements of Consolidated Cash Flows
                  --Statements of Consolidated Retained Earnings
                  --Statements of Consolidated Premium on Common
                      Stock and Other Paid-in Capital
                  --Notes to Financial Statements
                  --Report of Independent Public Accountants


Exhibit (23) Commonwealth Edison Company Form 8-K/A-1 File No. 1-1839

CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by reference of our report dated March 18, 1994, on Commonwealth Edison Company and subsidiary companies' consolidated financial statements as of and for the year ended December 31, 1993, included as an Exhibit to this Form 8-K/A-1 Current Report of Commonwealth Edison Company dated January 28, 1994, into Commonwealth Edison Company's previously filed prospectuses as follows: (1) prospectus dated June 1, 1988, constituting part of Form S-8 Registration Statement File No. 2- 76921 (relating to the Company's Employe Stock Purchase Plan); (2) prospectus dated August 1, 1992, constituting part of Form S-8 Registration Statement File Nos. 2-81592 and 33-5061, as amended (relating to the Company's Employe Savings and Investment Plan); (3) prospectus dated August 21, 1986, constituting part of Form S-3 Registration Statement File No. 33-6879, as amended (relating to the Company's Debt Securities and Common Stock); (4) prospectus dated February 14, 1991, constituting part of Form S-3 Registration Statement File No. 33-38233
(relating to the Company's Debt Securities and Cumulative Preference Stock); (5)
prospectus dated January 7, 1994, constituting part of Form S-3 Registration Statement File No. 33-51379 (relating to the Company's Debt Securities and Cumulative Preference Stock); and (6) prospectus constituting part of Form S-4 Registration Statement File No. 33-52109, as amended (relating to Common Stock of CECo Holding Company). We also consent to the application of our report to the ratios of earnings to fixed charges and the ratios of earnings to fixed charges and preferred and preference stock dividend requirements for each of the years ended December 31, 1993, 1992 and 1991 appearing on page 22 of Exhibit 99 of this Form 8-K/A-1.

ARTHUR ANDERSEN & CO.

Chicago, Illinois

March 18, 1994


Exhibit (99) Commonwealth Edison Company Form 8-K File No. 1-1839

Management's Discussion and Analysis of Financial Condition and Results of Operations

Liquidity and Capital Resources

Capital Budgets. Commonwealth Edison Company (Company) and its electric utility subsidiary, Commonwealth Edison Company of Indiana, Inc. (collectively, companies), have a construction program for the three-year period 1994-96 which consists principally of improvements to the companies' existing nuclear and other electric production, transmission and distribution facilities. It does not include funds (other than for planning) to add new generating capacity to the Company's system. The program, as approved by the Company in January 1994, calls for electric plant and equipment expenditures of approximately $2,450 million (excluding nuclear fuel expenditures of approximately $780 million). This amount reflects a decrease of approximately $200 million compared with the common years (1994-95) of the previously approved construction program. In part, the decrease reflects a reduction in capital spending announced by the Company in July 1992 due to adverse financial circumstances. For additional information concerning the cost reduction plan, see "Rates and Financial Condition" below. It is estimated that such construction expenditures, with cost escalation computed at 4% annually, will be as follows:

                                               Three-Year
 (millions of dollars)          1994 1995 1996      Total
 -----------------------------  ---- ---- ---- ----------
 Production                     $295 $310 $250     $  855
 Transmission and Distribution   340  445  505      1,290
 General                         115   95   95        305
---------------------------------------------------------
   Total                        $750 $850 $850     $2,450
---------------------------------------------------------

The Company's forecasts of peak load indicate a need for additional resources to meet demand, either through generating capacity or through equivalent purchased power or demand-side management resources, in 1997 and each year thereafter through the year 2000. The projected resource needs reflect the current planning reserve margin recommendations of the Mid-America Interconnected Network (MAIN), the reliability council of which the Company is a member. The Company's forecasts indicate that the additional resource need during this period would exist only during the summer months. The Company does not expect to make expenditures for additional capacity to the extent the need for capacity can be met through cost-effective demand-side management resources, non-utility generation or other power purchases. To assess the market potential to provide such cost-effective resources, the Company solicited proposals to supply it with cost- effective demand-side management resources, non-utility generation resources and other-utility power purchases sufficient to meet forecasted requirements through the year 2000. The responses to the solicitation suggest that adequate resources to meet the Company's needs could be obtained from those sources but the Company has not yet determined whether those sources represent the most economical alternative. If the Company were to build additional capacity to meet its needs, it would need to make additional expenditures during the 1994-96 period.
The Company has not budgeted for a number of projects, particularly at generating stations, which could be required, but which the Company does not expect to be required during the budget period. In particular, the Company has not budgeted for the construction of scrubbers at its Kincaid generating station, for the replacement of major amounts of piping at its boiling water reactor nuclear stations or for the replacement of steam generators at its pressurized water reactor nuclear stations.

10


Purchase commitments, principally related to construction and nuclear fuel, approximated $1,187 million at December 31, 1993. In addition, the Company has substantial commitments for the purchase of coal under long-term contracts as indicated in the following table.

 Contract                                         Period   Commitment (1)
 ----------------------------------------------- --------- --------------
 Black Butte Coal Co.                            1994-2007         $1,212
 Decker Coal Co.                                 1994-2015         $  862
 Peabody Coal Co.                                1994              $   34
 Big Horn Coal Co.                               1998              $   21
-------------------------------------------------------------------------

(1) Estimated costs in millions of dollars FOB mine. No estimate of future cost escalation has been made.

For additional information concerning these coal contracts and the Company's fuel supply, see "Results of Operations" below and Notes 3, 17 and 19 of Notes to Financial Statements.
The construction program will be reviewed and modified as necessary to adapt to changing economic conditions, rate levels and other relevant factors including changing business and legal needs and requirements. The Company cannot anticipate all such possible needs and requirements. While regulatory needs in particular are more likely, on balance, to require increases in construction expenditures than decreases, the Company's financial condition may require compensating or greater reductions in other construction expenditures. See "Rates and Financial Condition" below for additional information concerning the construction program.

Capital Resources. The Company has forecast that internal sources will provide approximately one-half of the funds required for its construction program and other capital requirements, including nuclear fuel expenditures, contributions to nuclear decommissioning trusts, sinking fund obligations and refinancing of scheduled debt maturities (the annual sinking fund requirements for preference stock and

                              long-term debt are summarized in Notes 7 and 8
                              of Notes to Financial Statements). The
                              forecast takes into account the rate reduction
The construction program      reflected in the Rate Matters Settlement
budget for 1994-96            (described below), and reflects the payments
reflects a decrease of        required to be made to customers under the
approximately $200            Rate Matters Settlement and the Fuel Matters
million compared with the     Settlement (described below).
common years 1994-95 of         The type and amount of external financing
the previous construction     will depend on financial market conditions and
budget.                       the needs and capital structure of the Company
                              at the time of such financing. Although the
                              Company's new money financing requirements
                              decreased significantly with the completion of
                              its nuclear generating capacity construction

program, they have subsequently increased due to higher expenditures and lower operating cash flows resulting from reduced revenues due to customer refunds and rate level adjustments ordered in various proceedings related to the level of the Company's rates and the effect of the Rate Matters Settlement and the Fuel Matters Settlement. See "Rates and Financial Condition" below for information related to the Company's reductions to operation and maintenance expenses and its construction program in response to adverse regulatory and judicial decisions. A portion of the Company's financing is expected to be provided through the continued sale and leaseback of nuclear fuel. The Company has unused bank lines of credit which may be borrowed at various interest rates and which may be secured or unsecured. The interest rate is set at the time of a borrowing and is based on several floating rate bank indices plus a spread which is dependent upon the Company's credit ratings, or on a prime interest rate. Collateral, if required for the borrowings, would consist of first

11


mortgage bonds issued under and in accordance with the provisions of the Company's mortgage. See Note 9 of Notes to Financial Statements for information concerning lines of credit. See the Statements of Consolidated Cash Flows for the construction expenditures and cash flow from operating activities for the years 1993, 1992 and 1991.
During 1993, the Company issued an aggregate of 421,994 shares of common stock for approximately $11,462,000 under its employe stock plans; issued and sold 700,000 shares of $6.875 Cumulative Preference Stock for approximately $69 million; sold and leased back an aggregate of approximately $204,254,000 of nuclear fuel; issued $1,715 million aggregate principal amount of first mortgage bonds; and issued $235 million of other long-term debt. On January 25, 1994, the Company announced the closing of the sale of $66 million of Pollution Control Revenue Refunding Bonds issued through the Illinois Development Finance Authority. The proceeds of the first mortgage bonds issued during 1993 were or will be used primarily to discharge or refund outstanding debt securities.
The Company has an effective "shelf" registration statement with the Securities and Exchange Commission for the future sale of up to an additional $1,030 million of debt securities and cumulative preference stock for general corporate purposes of the Company, including the discharge or refund of other outstanding securities.

Rates and Financial Condition. The Company's financial condition is dependent upon its ability to generate revenues to cover its costs. To maintain a satisfactory financial condition, the Company must recover the costs of and a return on completed construction projects, including its three most recently completed generating units, and maintain adequate debt and preferred and preference stock coverages and common stock equity earnings. The Company has no significant revenues other than from the sale of electricity. Under the economic and political conditions prevailing in Illinois, the Company's

                               management recognizes that competitive and
                               regulatory circumstances may limit the
Workforce reductions           Company's ability to raise its prices.
already implemented,           Therefore, the Company's financial condition
combined with other            will depend in large measure on the Company's
actions, are estimated to      levels of sales, expenses and capital
have saved approximately       expenditures. See "Business and Competition"
$130 million in operation      below.
and maintenance expenses         In response to the adverse regulatory and
during 1993.                   judicial decisions in the proceedings relating
                               to the level of the Company's rates, the
                               Company implemented a cost reduction plan in
                               1992 involving various management workforce
                               reductions through early retirement and
                               voluntary and involuntary separations. Such

reductions, when combined with other actions, are estimated by the Company to have saved approximately $130 million in operation and maintenance expenses during 1993. The management workforce reduction resulted in a charge to income of approximately $23 million (net of income tax effects) in 1992. In addition, the Company reached agreement in August 1993 with its unions regarding certain cost reduction actions. The agreement provides for a wage freeze until April 1, 1994, changes to reduce health care plan cost, increased use of part-time employment and changes in holiday provisions. The agreement also includes a continuation of negotiations relative to other issues. Further, the Company has reduced planned construction program expenditures by approximately $200 million compared with the common years (1994-95) of the previously approved construction program. See "Rate Proceedings" below and Note 12 of Notes to Financial Statements.
In addition, the quarterly common stock dividends, payable on and since November 1, 1992, were reduced by 47% from the seventy-five cents per share amount paid quarterly since 1982 to forty cents

12

per share. Dividends have been declared on the outstanding shares of the Company's preferred and preference stocks at their regular quarterly rates. The Company's Board of Directors will continue to review quarterly the payment of dividends.

The current ratings of the Company's securities by three principal securities rating agencies are as follows:

----------------------------------------------------------------------
                                                       Standard Duff &
                                               Moody's & Poor's Phelps
                                               ------- -------- ------
 First mortgage and secured pollution control
  bonds                                           Baa2     BBB  BBB
 Publicly-held debentures and unsecured
  pollution control obligations                   Baa3     BBB- BBB-
 Convertible preferred stock                      baa3     BBB- BB+
 Preference stock                                 baa3     BBB- BB+
 Commercial paper                                 P2       A-2  Duff 2
----------------------------------------------------------------------

The foregoing ratings reflect downgradings during 1992 and in January 1993 as a result of developments in the proceedings leading to, and the issuance of, the Illinois Commerce Commission (ICC) rate order issued on January 6, 1993 (as subsequently modified, the Remand Order). In December 1993, Standard & Poor's affirmed its ratings of the Company's debt, although on October 27, 1993, it changed its "outlook" on the Company's ratings from stable to negative as part of its larger assessment of the electric utility industry. In September 1993, Moody's and Duff & Phelps affirmed their ratings of the Company's securities, and in October 1993, Moody's rating outlook on the Company remained stable.

Business and Competition. The electric utility business has historically been characterized by retail service monopolies in state or locally franchised service territories. Investor-owned electric utilities have tended to be vertically integrated with all aspects of their business subject to pervasive regulation. Although customers have normally been free to supply their electric power needs through self-generation, they have not had a choice of electric suppliers and self-generation has not generally been economical.

The market in which electric utilities like the Company operate has become more competitive and many observers believe competition will intensify. Self- generation can be economical for certain customers, depending on how and when they use electricity and other customer-specific considerations. A number of competitors are currently seeking to identify and do business with those customers. In addition, suppliers of other forms of energy are increasingly competing to supply energy needs which historically were supplied primarily or exclusively by electricity.

The Energy Policy Act of 1992 will likely have a significant effect on companies engaged in the generation, transmission, distribution, purchase and sale of electricity. This Act, among other things, expands the authority of the Federal Energy Regulatory Commission to order electric utilities to transmit or "wheel" wholesale power for others, and facilitates the creation of non-utility electric generating companies. Although the Company cannot now predict the full impact of this Act, it will likely create and increase competition affecting the Company.

The Company is facing increased competition from several non-utility businesses which seek to provide energy services to users of electricity, especially larger customers such as industrial, commercial and wholesale customers. Such suppliers include independent power producers and unregulated energy services companies. In this regard, natural gas utilities operating in the Company's service area have established subsidiary ventures to provide heating, ventilating and air conditioning services, attempting to attract the Company's customers. Also, several utilities in the United States have established unregulated energy services subsidiaries which pursue business opportunities wherever they exist. In

13

addition, cogeneration and energy services companies have begun soliciting the Company's customers to provide alternatives to using the Company's electricity.
On July 13, 1993, legislation became effective in Illinois which permits the Company to create certain unregulated subsidiaries, and to form a holding company, without being required to obtain the approval of the ICC. The legislation gives the Company and its affiliates flexibility to compete with unregulated competitors to provide energy services. The Company has created an unregulated subsidiary to engage in energy service activities and is preparing to obtain necessary shareholder and Federal regulatory approvals to form a holding company.

Regulation. The companies are subject to state and federal regulation in the conduct of their operations. Such regulation includes rates, securities issuance, nuclear operations, environmental and other matters. Particularly in the cases of nuclear operations and environmental matters, such regulation can and does affect the companies' operational and capital expenditures.
During the past several years, the Nuclear Regulatory Commission (NRC) has placed two of the Company's nuclear generating stations, Zion station and Dresden station, on its list of plants to be monitored closely. Generally, such status can be expected to result, and has resulted, in increased expenditures to address deficiencies in station management and/or operations. The Company has restructured its management of its nuclear stations and committed additional resources to their operations. The Zion station was removed from the list of plants to be monitored closely in February 1993; however, the Dresden station remains on that list. On January 27, 1994, the NRC noted adverse performance trends at Quad-Cities station as well as at LaSalle County station. The Company had already identified and was working to correct most of the problems cited. In addition, the Company anticipates that it will need to make significant capital expenditures in future years in connection with certain of its nuclear generating units.

The Company estimates that it will expend approximately $15 billion for decommissioning costs primarily during the period from 2007 through 2032. Such costs, which are estimated to aggregate approximately $4.06 billion, in current-year (1993) dollars, are expected to be funded by the external decommissioning trust funds which the Company established in compliance with Illinois law and into which the Company has been making annual contributions. See Note 1 of Notes to Financial Statements under "Depreciation" for additional information regarding decommissioning costs.
The Clean Air Act Amendments of 1990 (Amendments) will require reductions in sulfur dioxide emissions from the Company's Kincaid station. The Amendments also bar future utility sulfur dioxide emissions except to the extent utilities hold allowances for their emissions. Allowances which authorize their holder to emit sulfur dioxide will be issued by the United States Environmental Protection Agency based largely on historical levels of sulfur dioxide emissions. These allowances will be transferable and marketable. The Company's ability to increase generation in the future to meet expected increased demand for electricity will depend in part on the Company's ability to acquire additional allowances or to reduce emissions below otherwise allowable levels from its existing generating plants. In addition, the Amendments require studies to determine what controls, if any, should be imposed on utilities to control air toxic emissions, including mercury. The Company's Clean Air Compliance Plan for Kincaid station was approved by the ICC on July 8, 1993. In late 1993, however, a federal court declared the Illinois law under which the approval was received to be unconstitutional and compliance plans prepared and approved in reliance on the law to be void. Under the Plan approved by the ICC, the Company would have been allowed to burn low sulfur Illinois coal at Kincaid station without the installation of pollution control equipment for the years 1995 through 1999, and to purchase any necessary emission allowances that are expected to be available under the Amendments during this period. Also, under the Plan, the Company expected to install pollution control equipment for Kincaid station by the year 2000. When the final outcome of the federal litigation is known, the Company will determine whether any changes are required.
The Amendments also will require reductions in nitrogen oxide emissions from the Company's fossil fuel generating units. The Illinois Environmental Protection Agency has proposed rules with respect to such emissions which would require modifications to certain of the Company's boilers. The Company's construction program for the three-year period 1994-96 includes $25 million for such modifications.

14


Capital Structure. The Company's ratio of long-term debt to total capitalization has increased to 55.0% at December 31, 1993 from 54.0% at December 31, 1992. This increase is related primarily to the decrease in retained earnings resulting principally from the recording in 1993 of the settlements discussed in "Rate Proceedings" below.


Rate Proceedings

The Company's revenues, net income, cash flows and plant carrying costs have been affected directly by various rate-related proceedings. During the periods presented in the financial statements, the Company was involved in proceedings concerning its October 1985 ICC rate order (which related principally to the recovery of costs associated with its Byron Unit 1 nuclear generating unit), proceedings concerning its March 1991 ICC rate order (which related principally to the recovery of costs associated with its Byron Unit 2 and Braidwood Units 1 and 2 nuclear generating units (Units)), proceedings concerning the reduction in the difference between the Company's summer and non- summer residential rates that was effected in the summer of 1988, and ICC fuel reconciliation proceedings principally concerning the recoverability of the costs of the Company's western coal. In addition, there were outstanding issues related to the appropriate interest rate and rate design to be applied to a refund that was made in 1990 following the reversal of a December 1988 ICC rate order and a rider to the Company's rates that the Company was required to file as a result of the change in the federal corporate income tax rate made by the Tax Reform Act of 1986. The uncertainties associated with such proceedings and issues, among other things, led to the Rate Matters Settlement and the Fuel Matters Settlement (which are discussed below).
The effects of the aforementioned rate proceedings during the periods presented are discussed below under "Results of Operations." For additional information regarding such proceedings, see Notes

                               2 and 3 of Notes to Financial Statements in
                               the Company's Quarterly Report on Form 10-Q
The Company has                for the quarterly period ended June 30, 1993.
restructured its
management of its nuclear      Settlements Relating to Certain Rate Matters.
stations and committed         On September 24, 1993, the Company's Board of
additional resources to        Directors approved two proposed settlements
their operations.              which the Company's management had reached
                               with parties involved in several of the
                               proceedings and matters relating to the level
                               of the Company's rates for electric service.
                               One of the proposed settlements (Rate Matters
                               Settlement) concerns the proceedings relating
                               to the Company's 1985 and 1991 ICC rate orders,

the proceedings relating to the reduction in the difference between the Company's summer and non- summer residential rates, the outstanding interest rate and rate design issues, and a rider related to the change in the federal corporate income tax rate made by the Tax Reform Act of 1986. The other proposed settlement (Fuel Matters Settlement) relates to the ICC fuel reconciliation proceedings involving the Company for the period from 1985 through 1988 and to future challenges by the settling parties to the prudency of the Company's western coal costs for the period from 1989 through 1992. Each of these settlements was subject to appropriate action by the ICC or the courts having jurisdiction over the proceedings.
As a result of subsequent ICC and judicial actions, the Rate Matters Settlement became final on November 4, 1993. Under the Rate Matters Settlement, effective as of November 4, 1993, the Company reduced its rates by approximately $339 million annually and commenced refunding approximately $1.26 billion (including revenue taxes), plus interest at five percent on the unpaid

15


balance, through temporarily reduced rates over an initial refund period scheduled to be twelve months (to be followed by a reconciliation period of no more than five months). The Company had previously deferred the recognition of revenues during 1993 as a result of developments in the proceedings related to the March 1991 ICC rate order, which resulted in a reduction to 1993 net income of approximately $160 million. The recording of the effects of the Rate Matters Settlement in October 1993 reduced the Company's 1993 net income and retained earnings by approximately $292 million or $1.37 per common share, in addition to the effect of the deferred recognition of revenues and after the partially offsetting effect of recording approximately $269 million (or $1.26 per common share) in deferred carrying charges, net of income taxes, authorized in the Remand Order. In January 1994, a purported class action was filed in the Circuit Court of Cook County, Illinois challenging the method in which the refunds are being made to residential customers in the Rate Matters Settlement. The Company does not believe that the complaint has any merit.
In the Remand Order, the rate determination was based upon, among other things, findings by the ICC with respect to the extent to which the Units were "used and useful" during the 1991 test year period of the rate order. With respect to the "used and useful" issue, the ICC applied a needs and economic benefits methodology, using a twenty percent reserve margin and forecasted peak demand, and found Byron Unit 2 and Braidwood Units 1 and 2 to be 93%, 21% and 0%, respectively, "used and useful." The Company has not recorded any disallowances related to the "used and useful" issue.

                               The Company considers the "used and useful"
                               disallowance in the Remand Order to be
                               temporary. The ICC concluded in the Remand
                               Order that the forecasts in the record in that
Kilowatthour sales to          proceeding indicate that Braidwood Units 1 and
ultimate consumers             2 will be fully "used and useful" within the
increased 4.6% in 1993,        reasonably foreseeable future.
the result of increased          As a result of subsequent ICC actions, the
sales to all major             Fuel Matters Settlement became final on
classes of customers.          November 15, 1993. Under the Fuel Matters
                               Settlement, effective as of December 2, 1993,
                               the Company commenced paying approximately
                               $108 million (including revenue taxes) to its
                               customers through

temporarily reduced collections under its fuel adjustment clause over a twelve-month period. The Company recorded the effects of the Fuel Matters Settlement in October 1993, which effects reduced the Company's net income and retained earnings by approximately $62 million or $0.29 per common share.


Results of Operations

Earnings Per Common Share. The Company's earnings per common share were $0.22 in 1993, $2.08 in 1992 and $0.08 in 1991. The 1993 results were significantly affected by the recording of the effects of the Rate Matters Settlement and the Fuel Matters Settlement, which reduced net income by approximately $354 million or $1.66 per common share, in addition to the effect of the deferred recognition of revenues which the Company had recorded during 1993, and after the partially offsetting effect of recording approximately $269 million or $1.26 per common share in deferred carrying charges, net of income taxes, as authorized in the Remand Order. The 1993 earnings also reflect the favorable cumulative effect ($9.7 million or $0.05 per common share) of the Company's adoption of Statement of Financial Accounting Standards (SFAS) No. 109, Accounting for Income Taxes, in January 1993. The effect of the non-recurring items was partially offset by a higher level of kilowatthour sales and

16

lower operation and maintenance expenses. Excluding non-recurring items, earnings in 1993 would have been $1.83 per common share.

The 1992 results were significantly affected by the decreased level of kilowatthour sales due to a cooler than normal summer, higher operation and maintenance expenses, higher revenues resulting from the full effect of the rate increase which became effective on March 20, 1991, lower fuel and purchased power costs and the 1992 reduction to net income of $50 million or $0.24 per common share to reflect a provision for additional refunds and interest related to the 1985 ICC rate order. Excluding non-recurring items, earnings in 1992 would have been $2.32 per common share.

The 1991 results were significantly affected by the recording of the effects of the unreasonable plant cost disallowance applicable to the Units included in the ICC's March 1991 rate order, which reduced net income by approximately $734 million or $2.59 per common share. The rate increase authorized by the March 1991 ICC order, which became effective on March 20, 1991, partially offset these reductions. Excluding the non-recurring adjustments, earnings in 1991 would have been $2.67 per common share.

See "Rate Proceedings" above for information relating to various rate proceedings which have affected the Company's earnings per common share.

Kilowatthour Sales. Kilowatthour sales to ultimate consumers increased 4.6% in 1993, the result of increased sales to all classes of customers (except railroads, which decreased), due primarily to more normal summer weather in 1993 as compared to 1992. Kilowatthour sales to ultimate consumers decreased 4.6% in 1992 principally reflecting lower kilowatthour sales to residential consumers as a result of a cooler than normal summer. Kilowatthour sales to ultimate consumers increased 5.2% in 1991, the result of increased sales to all classes of customers and a warmer summer in 1991 than 1990. Kilowatthour sales including sales for resale increased 16.0% in 1993, decreased 3.7% in 1992 and increased 1.2% in 1991.

Electric Operating Revenues. Operating revenues decreased $766 million in 1993 principally reflecting the recording of the effects of the Rate Matters Settlement and the Fuel Matters Settlement, which reduced 1993 electric operating revenues by $1,282 million. This reduction was partially offset by a higher level of kilowatthour sales and an increase in the recovery of energy costs under the fuel adjustment provision in the Company's rates. See "Rate Proceedings" above and "Earnings per Common Share" herein and Note 2 of Notes to Financial Statements for additional information.

Operating revenues decreased $249 million in 1992 principally reflecting a lower level of kilowatthour sales due to a cooler than normal summer, a decrease in the recovery of energy costs

under the fuel adjustment provision in the Company's rates and a provision for revenue refunds of approximately $18 million related to the 1985 ICC rate order. The decrease more than offset the full effect of the rate increase authorized in the March 1991 ICC order, which became effective March 20, 1991. See "Rate Proceedings" above for additional information.

Operating revenues increased $965 million in 1991 due to the rate increase which became effective on March 20, 1991, higher kilowatthour sales in 1991 and the favorable comparison to 1990 in which rates were rolled back as a result of the reversal of a December 1988 ICC rate order and provisions for revenue refunds which were made as a result of developments in the proceedings related to the 1985 ICC rate order and the reversal of the December 1988 ICC rate order. See "Rate Proceedings" above for additional information.

Operating revenues for 1994 will be affected by the Rate Matters Settlement (discussed above), which lowered the level of the Company's rates.

17

Fuel Costs. Changes in fuel expense for 1993, 1992 and 1991 primarily result from changes in the average cost of fuel consumed, changes in the mix of fuel sources of electric energy generated and changes in net generation of electric energy. Fuel mix is determined primarily by system load, the costs of fuel consumed and the availability of nuclear generating units. The cost of fuel consumed, net generation of electric energy and fuel sources of kilowatthour generation were as follows:

                                                   1993    1992    1991
 ----------------------------------------------  ------  ------  ------
 Cost of fuel consumed (per million Btu):
  Nuclear                                         $0.52   $0.52   $0.49
  Coal                                            $2.89   $2.96   $2.84
  Oil                                             $3.03   $3.02   $3.37
  Natural gas                                     $2.70   $2.36   $2.48
  Average all fuels                               $1.15   $0.97   $1.07
 Net generation of electric energy (millions of
  kilowatthours)                                 94,266  79,889  82,046
 Fuel sources of kilowatthour generation:
  Nuclear                                            75%     83%     77%
  Coal                                               23      15      21
  Oil                                                 1       1       1
  Natural gas                                         1       1       1
------------------------------------------------------------------------
                                                    100%    100%    100%
------------------------------------------------------------------------

The cost of nuclear fuel consumed in 1991 reflects an accrual for a $46 million court ordered refund from the Department of Energy (DOE) relating to spent nuclear fuel disposal costs. An offsetting amount was included in deferred under or overrecovered energy costs in December 1991 and was refunded to the Company's ratepayers through the fuel adjustment clause in February 1992. In connection with the Energy Policy Act of 1992, investor-owned electric utilities that have purchased enrichment services from the DOE will be assessed annually for a fifteen-year period amounts to fund a portion of the cost for the decontamination and decommissioning of three nuclear enrichment facilities previously operated by the DOE. The Company's portion of such assessments is estimated to be approximately $15 million per year (to be adjusted annually for inflation). The Act provides that such assessments are to be treated as a cost of fuel. See Note 1 of Notes to Financial Statements for information related to the accounting for such costs.

Fuel Supply. Compared to other utilities, the Company has relatively low average fuel costs. This results from the Company's reliance predominantly on lower cost nuclear generation. The Company's coal costs, however, are high compared to those of other utilities. The Company's western coal contracts and its rail contracts for delivery of the western coal were renegotiated during 1992 effective as of January 1, 1993, to provide, among other things, for significant reductions in the delivered price of the coal over the duration of the contracts. However, the renegotiated contracts provide for the purchase of certain coal at prices substantially above currently prevailing market prices and the Company has significant purchase commitments under its contracts. Coal and fuel oil, at average cost, included in the Consolidated Balance Sheets, decreased approximately $215 million in 1993 as compared to 1992, primarily due to lower inventory levels at year-end, reflecting the Company's present policy of maintaining coal inventories equal to 30 days of high utilization. Lower average costs per ton of coal due to renegotiated coal and rail contracts, which became effective January 1, 1993, also contributed to the decrease in 1993. For additional information concerning the Company's coal purchase commitments, fuel reconciliation proceedings and coal reserves, see "Liquidity and Capital Resources" above and Notes 2, 3, 17 and 19 of Notes to Financial Statements.

18


Purchased Power. Amounts of purchased power are primarily affected by system load, the availability of the Company's generating units and the availability and cost of power from other utilities.
The number and average cost of kilowatthours purchased were as follows:

                                                    1993   1992   1991
 -----------------------------------------------    ----  -----  -----
 Kilowatthours (millions)                             644  2,555  3,374
 Cost per kilowatthour                              1.91c  1.78c  2.16c
------------------------------------------------

Deferred Under or Overrecovered Energy Costs--Net. Electric operating expenses for the years 1993, 1992 and 1991 reflect the net change in under or overrecovered allowable energy costs. See "Fuel Costs" and "Fuel Supply" above and Notes 1 and 3 of Notes to Financial Statements.

Operation and Maintenance Expenses. Total operation and maintenance expenses decreased approximately 4% during 1993 and increased approximately 9% and 18% during 1992 and 1991, respectively. The decrease in 1993 primarily reflects a decrease in operation and maintenance expenses associated with nuclear generating stations, lower costs of pension benefits, lower expenses related to fossil generating station and customer-related activities, a decrease in the number of employes and lower research costs, partially offset by higher costs of other employe benefits, including postretirement health care benefits, and the cost related to a special incentive plan for employes. The increases in 1992 and 1991 primarily reflect an increase in operation and maintenance expenses associated with nuclear generating stations, cost of pension and other employe benefits, including postretirement health care benefits, and an increased number of employes. The increase in 1991 also reflects an increase related to transmission and distribution activities. Wage increases, the effects of which are reflected in the increases and decreases discussed below, have increased operation and maintenance expenses during 1992 and 1991. Wages in 1993 were not increased over 1992 levels. The effects of inflation, which are also reflected in the increases and decreases

                               discussed below, have increased operation and
                               maintenance expenses during the periods. The
Compared to other              cost of pension benefits (net of amounts
utilities, the Company         charged to construction) decreased $16 million
has relatively low             in 1993 and increased $21 million and $31
average fuel costs. This       million in 1992 and 1991, respectively. The
results from the               1992 pension increase reflects the effect of
Company's reliance             the Company's workforce reduction program in
predominantly on lower         which a charge to income of $26 million was
cost nuclear generation.       recorded in 1992 (see Note 12 of Notes to
                               Financial Statements for additional
                               information). Additional costs associated with
                               the Company's management workforce reduction
                               program of approximately $11 million were

recorded in 1992, which adversely impacted operation and maintenance expenses for 1992. The cost of postretirement health care benefits (net of amounts charged to construction) increased $14 million, $29 million and $19 million in 1993, 1992 and 1991, respectively. The $14 million increase for 1993 reflects an increase in the cost of postretirement health care benefits of $17 million as a result of the Company adopting on January 1, 1993, SFAS No. 106, Employers' Accounting for Postretirement Benefits Other Than Pensions (see Note 13 of Notes to Financial Statements for additional information). Nuclear operation and maintenance expenses decreased approximately $74 million in 1993 and increased $105 million and $79 million in 1992 and 1991, respectively. The decrease at the nuclear generating stations in 1993 includes the effects of the Company's cost reduction efforts. Operation and maintenance expenses associated with nuclear generating stations in future years may be significantly affected by regulatory, operational and other requirements. Operation and maintenance expenses associated with the Company's transmission and

19


distribution system which increased $41 million in 1991, and remained stable in 1992 and 1993, may increase in future years due, in part, to the effect of increased customer expectations regarding reliability. Operation and maintenance expenses associated with the fossil generating stations in 1993 decreased $13 million and research costs decreased $10 million from the prior period due primarily to the effects in 1993 of the Company's cost reduction efforts. Costs of customer-related activities in 1993 decreased $13 million. Operation and maintenance expenses in 1993 also reflect a $36 million special incentive plan cost for employes related to a sharing of operation and maintenance savings below budgeted levels. In 1993, the Company recorded a provision of $5 million which reflects the low end of the range of its estimate of the liability associated with cleanup costs of remediation sites other than former manufactured gas plant (MGP) sites. In 1991, the Company recorded a provision of $25 million which reflects the low end of the range of its estimate of the liability associated with former MGPs. See Note 19 of Notes to Financial Statements for additional information concerning cleanup costs of remediation sites and former MGPs. For further information regarding the cost reduction plan and its effect on future operation and maintenance expenses, see "Liquidity and Capital Resources," subcaption "Rates and Financial Condition" above.

Depreciation. Depreciation expense increased in 1993 as a result of additions to plant in service. Depreciation expense increased in 1992 as a result of reflecting in expense a full year's effect of increased decommissioning costs allowed by the March 1991 ICC rate order, which became effective March 20, 1991. Depreciation expense in 1991 decreased compared to 1990 due primarily to lower average

                                annual composite depreciation rates as well as
Average interest rate on        the reduction to depreciable plant facilities in
long-term debt                  1991 reflecting the effects of recording
outstanding has been            disallowed plant costs, partially offset by the
significantly reduced,          increase in decommissioning expense resulting
primarily through               from the March 1991 ICC rate order. As discussed
refinancings at generally       in Note 1 of Notes to Financial Statements,
lower rates of interest.        the Company has revised its estimate of
                                decommissioning costs to aggregate

approximately $4.06 billion, in current-year (1993) dollars, from the approximate $2.32 billion estimate of decommissioning costs, in current-year
(1993) dollars, reflected in its current rates. The current accrual of approximately $127 million reflected in the Company's rates coupled with accumulated earnings on the tax-qualified and nontax-qualified trust funds based on after-tax earnings assumptions of 7.30% and 6.26%, respectively, is expected to provide sufficient funds to pay estimated decommissioning costs assuming a 4.5% escalation rate. Should the expected trust fund and trust fund earnings be less than the current forecast, the Company believes that it is probable that decommissioning costs not funded by the trust fund, including trust fund earnings, would ultimately be recoverable through rates. See Note 1 of Notes to Financial Statements for information concerning depreciation rates and decommissioning costs.

Interest on Debt. Changes in interest on long-term debt and notes payable for the years 1993, 1992 and 1991 were due to changes in average interest rates and in the amounts of long-term debt and notes payable outstanding. Changes in interest on long-term debt reflect new issues of debt and the retirement and redemption of issues which were refinanced at generally lower rates of interest. The average amounts of long-term debt and notes payable outstanding and average interest rates thereon were as follows:

                                              1993      1992      1991
 --------------------------------------   --------  --------  --------
 Long-term debt outstanding:
  Average amount (millions)               $8,105.1  $7,699.9  $7,314.3
  Average interest rate                       8.03%     8.58%     9.09%
 Notes payable outstanding:
  Average amount (millions)                   $5.7     $17.5      $1.9
  Average interest rate                       5.83%     4.43%     8.22%
-----------------------------------------------------------------------

Recovery/(Deferral) of Regulatory Assets--Net. In the March 1991 ICC rate order, the ICC provided that, for ratemaking purposes, certain rate case and consultant costs associated with the prudency audits for the Units could be deferred and amortized. Approximately $43 million of such costs were capitalized and resulted in an increase to net income in 1991 of approximately $24 million or $0.11 per common share.

20

In the Remand Order, the ICC provided that, for ratemaking purposes, deferred carrying charges on the reasonable and "used and useful" plant costs of the Units for the period April 1, 1989 until approximately March 20, 1991, the date the Units were reflected in rates, could be deferred and amortized. Approximately $438 million of such costs were capitalized in October 1993 and resulted in an increase to net income of approximately $269 million or $1.26 per common share.

Taxes. In the third quarter of 1993, the President of the United States signed into law a deficit-reduction plan that includes, among other things, an increase in the federal statutory corporate income tax rate from 34% to 35%, effective January 1, 1993. The estimated effect of the higher rate would be to increase the Company's costs by approximately $12 million per year. The Company began recording the effects of the increased taxes in the third quarter of 1993. In addition to the effects on income discussed above, the Company recorded in the third quarter of 1993 a net increase in the deferred income tax liability which was primarily offset by regulatory assets net of regulatory liabilities, reflecting the increase in taxes recoverable in rates to settle net income tax liabilities recorded in prior years.
Further, the Company recorded in the third quarter of 1993 the effects of the elimination of a scheduled reduction in a component of the statutory Illinois income tax rate which was to have declined to 4.4% from 4.8%, effective July 1, 1993.
In 1993, the Company recorded a loss for income tax purposes. Income tax overpayments made prior to the determination of such loss of approximately $185 million are included in the Consolidated Balance Sheet in receivables.
See Note 14 of Notes to Financial Statements for information concerning the accounting standard adopted by the Company in January 1993 which requires the Company to use an asset and liability approach for financial accounting and reporting for income taxes rather than the deferred method.

Decommissioning. The staff of the SEC has questioned certain of the current accounting practices of the electric utility industry, including the Company, regarding the recognition, measurement and classification of decommissioning costs for nuclear generating stations in financial statements of electric utilities. In response to these questions the electric utility industry has requested the Financial Accounting Standards Board to review the accounting for removal costs, including decommissioning. If current electric utility industry accounting practices for such decommissioning are changed: (1) annual provisions for decommissioning could increase; (2) the estimated cost for decommissioning could be recorded as a liability rather than as accumulated depreciation; and (3) trust fund income from the external decommissioning trusts could be reported as investment income rather than as a reduction to decommissioning expense. The Company does not believe that such changes, if required, would have an adverse effect on results of operations due to its current and future ability to recover decommissioning costs through rates.

Regulatory Assets and Liabilities. The balance of Regulatory Assets increased from December 31, 1992 to December 31, 1993 by approximately $2,220 million. The increase is due primarily to the Company's adoption of SFAS No. 109 effective January 1, 1993. The effect of the implementation entry was to record regulatory assets of approximately $1,546 million. Further, as discussed under the subcaption "Taxes" above, in the third quarter of 1993, the Company began recording the effects of the increased federal statutory corporate income tax rate effective January 1, 1993, in addition to recording the effects of the elimination of a scheduled reduction in a component of the statutory Illinois income tax rate, effective July 1, 1993, which in total resulted in an increase to regulatory assets of approximately $224 million. Approximately $436 million of the increase in regulatory assets reflects the unamortized balance of deferred carrying charges recorded by the Company in 1993 on the Units, as discussed under the subcaption "Recovery/(Deferral) of Regulatory Assets--Net" above. The remaining increase is related primarily to losses from reacquisition in 1993 of first mortgage bonds prior to their scheduled maturity dates, which were deferred consistent with regulatory treatment. A regulatory liability was also recorded in compliance with SFAS No. 109. See Notes 1 and 14 of Notes to Financial Statements for additional information.

Other Items. The amounts of allowance for funds used during construction (AFUDC) reflect changes in the average levels of investment subject to AFUDC and changes in the average annual rates as discussed in Note 1 of Notes to Financial Statements. AFUDC does not contribute to the current cash flow of the Company.
The approximate $720 million increase in other cash investments, at cost, and temporary cash investments, at cost, in 1993 as compared to 1992, reflects additional cash flow from higher operating revenues collected prior to the finalization of the Rate Matters Settlement as well as a reduction in

21

operation and maintenance expenses, construction expenditures and dividends paid on capital stock. Although the Company recorded the provisions for revenue refunds in 1993, the majority of the refunds to its customers will be made in 1994.

The ratios of earnings to fixed charges for the years 1993, 1992 and 1991 were 1.19, 2.06 and 1.59, respectively. The ratios of earnings to fixed charges and preferred and preference stock dividend requirements for the years 1993, 1992 and 1991 were 1.03, 1.78 and 1.36, respectively.
Business corporations in general have been adversely affected by inflation because amounts retained after the payment of all costs have been inadequate to replace, at increased costs, the productive assets consumed. Electric utilities in particular have been especially affected as a result of their capital intensive nature and regulation which limits capital recovery and prescribes installation or modification of facilities to comply with increasingly stringent safety and environmental requirements. Because the regulatory process limits the amount of depreciation expense included in the Company's revenue allowance to the original cost of utility plant investment, the resulting cash flows are inadequate to provide for replacement of that investment in future years or preserve the purchasing power of common equity capital previously invested.

22

Report of Independent Public Accountants

To the Shareholders of Commonwealth Edison Company:

We have audited the accompanying consolidated balance sheets and statements of consolidated capitalization of Commonwealth Edison Company (an Illinois corporation) and subsidiary companies as of December 31, 1993 and 1992, and the related statements of consolidated income, retained earnings, premium on common stock and other paid-in capital, and cash flows for each of the three years in the period ended December 31, 1993. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.
We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Commonwealth Edison Company and subsidiary companies as of December 31, 1993 and 1992, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 1993, in conformity with generally accepted accounting principles.
As discussed in Notes 13 and 14, effective January 1, 1993, the Company changed its method of accounting for postretirement health care benefits and income taxes, respectively.

[LOGO-Sig. of Arthur Andersen & Co.]

Chicago, Illinois

March 18, 1994

25

Summary of Selected Consolidated Financial Data

 (millions of dollars except per share data)      1993    1992       1991    1990    1989
 -------------------------------------------   ------- -------    ------- ------- -------
 Electric operating revenues                   $ 5,260 $ 6,026    $ 6,276 $ 5,311 $ 5,819
 Net income                                    $   112 $   514    $    95 $   128 $   694
 Earnings per common share                     $  0.22 $  2.08    $  0.08 $  0.22 $  2.83
 Cash dividends declared per common share      $  1.60 $  2.30    $  3.00 $  3.00 $  3.00
 Total assets (at end of year)                 $23,963 $20,993(1) $17,365 $17,889 $17,948
 Long-term obligations at end of year
  excluding current portion:
   Long-term debt and preference stock
    subject to mandatory redemption
    requirements                               $ 7,861 $ 7,913    $ 7,081 $ 7,341 $ 7,002
   Accrued spent nuclear fuel disposal
    fee and related interest                   $   567 $   549    $   530 $   500 $   462
   Capital lease obligations                   $   321 $   347    $   396 $   387 $   413
   Other long-term obligations                 $ 1,303 $   666    $   341 $   225 $   214
-----------------------------------------------------------------------------------------

(1)SEE NOTE 14 OF NOTES TO FINANCIAL STATEMENTS FOR ADDITIONAL INFORMATION.

Price Range* and Dividends Paid Per Share of Common Stock 1993 (by quarters) 1992 (by quarters)

Fourth Third Second First Fourth Third Second First

Price Range:
High 30 5/8 31 5/8 29 7/8 28 1/4 26 27 5/8 34 1/4 40 1/8 Low 27 3/8 27 3/8 25 5/8 22 7/8 21 3/4 22 7/8 26 5/8 33 3/4 Dividends Paid 40c 40c 40c 40c 40c 75c 75c 75c *As reported as NYSE Composite Transactions.

The Company's common stock is traded on the New York, Chicago and Pacific stock exchanges, with the ticker symbol CWE. At December 31, 1993, there were approximately 196,000 holders of record of the Company's common stock.

1993 Revenues and Sales

                            Electric
                           Operating   Increase/ Kilowatthour  Increase/            Increase/
                         Revenues(1)  (Decrease)        Sales (Decrease)           (Decrease)
                         (thousands)   Over 1992   (millions)  Over 1992 Customers  Over 1992
                         -----------  ---------- ------------ ---------- --------- ----------
 Residential              $2,341,155       9.1 %       20,818      8.0 % 3,009,508      1.0 %
 Small commercial and
  industrial               1,962,662       4.7 %       23,463      3.5 %   283,764      0.6 %
 Large commercial and
   industrial              1,437,680       4.6 %       22,917      3.4 %     1,503     (1.6)%
 Public authorities          474,034       4.8 %        6,741      2.7 %    12,023      1.2 %
 Electric railroads           27,593      (0.1)%          405     (1.4)%         2       -- %
---------------------------------------------------------------------------------------------
  Ultimate
   consumers--total       $6,243,124       6.3 %       74,344      4.6 % 3,306,800      0.9 %
 Provisions for
  revenue refunds--
  ultimate consumers      (1,281,788)                      --                   --
---------------------------------------------------------------------------------------------
  Ultimate
   consumers--net         $4,961,336                   74,344            3,306,800
---------------------------------------------------------------------------------------------
 Sales for resale         $  242,550
 Provisions for revenue
  refunds--sales for
  resale                      (4,977)
---------------------------------------------------------------------------------------------
 Sales for resale--net    $  237,573                   13,417                   17
 Other revenues               61,531                       --                   --
---------------------------------------------------------------------------------------------
                          $5,260,440     (12.7)%       87,761     16.0 % 3,306,817      0.9 %
---------------------------------------------------------------------------------------------

(1) See Note 2 of Notes to Financial Statements and the Statements of Consolidated Income for information related to revenue refunds.

26

Statements of Consolidated Income
Commonwealth Edison Company and Subsidiary Companies

       (thousands except per share data)         1993        1992         1991
       ----------------------------------  ----------  ----------  -----------
Electric operating revenues
(Notes 2 and 3):
       Operating revenues                  $6,547,205  $6,044,693  $ 6,276,384
       Provisions for revenue refunds      (1,286,765)    (18,372)        (851)
      -------------------------------------------------------------------------
                                           $5,260,440  $6,026,321  $ 6,275,533
- -------------------------------------------------------------------------------
Electric operating expenses and taxes:
       Fuel (Notes 1, 2, 3, 10 and 19)     $1,170,935  $  841,321  $   968,176
       Purchased power                         12,303      45,579       72,980
       Deferred (under)/overrecovered
        energy costs--net
        (Notes 1 and 3)                        (1,757)    (30,254)      31,204
       Operation                            1,457,689   1,529,849    1,412,366
       Maintenance                            581,714     587,778      527,489
       Depreciation (Note 1)                  862,766     836,129      825,837
       Recovery/(deferral) of regulatory
        assets--net                             5,235       3,330      (39,704)
       Taxes (except income) (Note 15)        701,913     743,909      742,570
       Income taxes (Notes 1 and 14)--
        Current  --Federal                    (19,930)    139,857      236,369
                 --State                       (7,623)     21,531       53,068
        Deferred --Federal--net                88,052      97,066      123,479
                 --State--net                  34,752      45,829       38,558
       Investment tax credits deferred--
        net (Notes 1 and 14)                  (29,424)    (32,506)     (32,054)
      -------------------------------------------------------------------------
                                           $4,856,625  $4,829,418  $ 4,960,338
- -------------------------------------------------------------------------------
Electric operating income                  $  403,815  $1,196,903  $ 1,315,195
- -------------------------------------------------------------------------------
Other income and (deductions):
       Interest on long-term debt          $ (651,181) $ (660,429) $  (664,946)
       Interest on notes payable                 (334)       (775)        (152)
       Allowance for funds used during
        construction (Note 1)--
        Borrowed funds                         16,930      17,213       13,500
        Equity funds                           20,618      19,960       18,272
       Income taxes applicable to
        nonoperating activities (Notes 1
        and 14)                                29,913       6,275      (10,842)
       Disallowed plant costs (Note 3)            --          --      (644,862)
       Income tax reduction for
        disallowed plant costs (Note 3)           791         --        76,579
       Deferred carrying charges (Note 2)     438,183         --           --
       Interest and other costs for 1993
        Settlements (Note 2)                  (98,674)        --           --
       Miscellaneous--net                     (57,359)    (65,166)      (7,857)
      -------------------------------------------------------------------------
                                           $ (301,113) $ (682,922) $(1,220,308)
- -------------------------------------------------------------------------------
Net income before cumulative effect of
 change in accounting for income taxes     $  102,702  $  513,981  $    94,887
Cumulative effect of change in accounting
 for income taxes                               9,738         --           --
- -------------------------------------------------------------------------------
Net income                                 $  112,440  $  513,981  $    94,887
Provision for dividends on preferred and
 preference stocks                             66,052      70,539       78,288
- -------------------------------------------------------------------------------
Net income on common stock                 $   46,388  $  443,442  $    16,599
- -------------------------------------------------------------------------------
Average number of common shares outstanding   213,508     212,929      212,452
Earnings per common share before cumulative
 effect of change in accounting for
 income taxes                                   $0.17       $2.08        $0.08
Cumulative effect of change in accounting
 for income taxes                                0.05         --           --
- -------------------------------------------------------------------------------
Earnings per common share                       $0.22       $2.08        $0.08
- -------------------------------------------------------------------------------
Cash dividends declared per common share        $1.60       $2.30        $3.00
- -------------------------------------------------------------------------------

The accompanying Notes to Financial Statements are an integral part of the above statements.

27

Consolidated Balance Sheets
(thousands of dollars) December 31, 1993 1992
ASSETS
Utility plant
(Notes 1, 3, 8, 16, 17 and 18):
       Plant and equipment, at original cost
        (includes construction work in progress of
        $1,040 million and $1,165 million,
        respectively)                                 $26,097,934  $25,400,822
       Less--Accumulated provision for depreciation     8,868,024    8,146,445
      -------------------------------------------------------------------------
                                                      $17,229,910  $17,254,377
       Nuclear fuel, at amortized cost                    662,562      665,964
      -------------------------------------------------------------------------
                                                      $17,892,472  $17,920,341
- -------------------------------------------------------------------------------
Investments:
       Nuclear decommissioning funds, at cost (Notes
        1 and 11)                                     $   706,841  $   533,463
       Subsidiary companies (Notes 1 and 17)              122,332      112,900
       Other investments, at cost (Note 17)                72,379      123,324
      -------------------------------------------------------------------------
                                                      $   901,552  $   769,687
- -------------------------------------------------------------------------------
Current assets:
       Cash                                           $       743  $       --
       Temporary cash investments, at cost which
        approximates market                               247,119      145,749
       Other cash investments, at cost which
        approximates market                               641,575       22,226
       Special deposits, at cost which approximates
        market (Note 11)                                   32,635      260,899
       Receivables (Note 1)--
        Customers                                         427,613      445,676
        Income taxes                                      186,687        5,159
        Other                                              66,963       75,089
        Provisions for uncollectible accounts             (10,910)     (12,976)
       Coal and fuel oil, at average cost                 111,752      327,134
       Materials and supplies, at average cost            402,714      404,548
       Deferred underrecovered energy costs (Notes 1
        and 3)                                              4,728        2,971
       Deferred income taxes related to current
        assets and liabilities (Note 14)--
        Loss carryforward                                 175,197          --
        Other                                             166,102      115,137
       Prepayments and other                               42,190       37,659
      -------------------------------------------------------------------------
                                                      $ 2,495,108  $ 1,829,271
- -------------------------------------------------------------------------------
Deferred charges:
       Regulatory assets (Notes 1 and 14)             $ 2,619,442  $   399,453
       Other                                               54,078       74,591
      -------------------------------------------------------------------------
                                                      $ 2,673,520  $   474,044
      -------------------------------------------------------------------------
                                                      $23,962,652  $20,993,343
- -------------------------------------------------------------------------------

The accompanying Notes to Financial Statements are an integral part of the above statements.

28

                            Commonwealth Edison Company and Subsidiary Companies
       (thousands of dollars)              December 31,         1993        1992
       ------------------------------------------------  ----------- -----------
LIABILITIES
Capitalization
(see accompanying statements):

       Common stock equity                               $ 5,421,893 $ 5,707,832
       Preferred and preference stocks without
        mandatory redemption requirements                    441,445     442,142
       Preference stock subject to mandatory redemption
        requirements                                         309,964     312,789
       Long-term debt                                      7,550,762   7,600,692
      --------------------------------------------------------------------------
                                                         $13,724,064 $14,063,455
- --------------------------------------------------------------------------------
Current liabilities:
       Notes payable--bank loans (Note 9)                $     5,950 $     5,600
       Current portion of long-term debt, redeemable
        preference stock and capitalized lease
        obligations (Note 11)                                630,050     564,538
       Accounts payable                                      489,080     457,918
       Accrued interest                                      186,825     192,658
       Accrued taxes                                         132,362     165,763
       Dividends payable                                     101,047     101,961
       Estimated revenue refunds and related interest      1,166,308       2,833
       Customer deposits                                      45,757      47,578
       Other                                                  98,519      83,580
      --------------------------------------------------------------------------
                                                         $ 2,855,898 $ 1,622,429
- --------------------------------------------------------------------------------
Deferred credits and other noncurrent liabilities:
       Deferred income taxes (Note 14)                   $ 4,445,173 $ 2,968,899
       Accumulated deferred investment tax credits
        (Notes 1 and 14)                                     746,508     775,932
       Accrued spent nuclear fuel disposal fee and
        related interest
        (Note 10)                                            566,527     549,422
       Obligations under capital leases (Note 16)            321,393     347,413
       Regulatory liability (Notes 1 and 14)                 592,770         --
       Other (Notes 1, 12 and 13)                            710,319     665,793
      --------------------------------------------------------------------------
                                                         $ 7,382,690 $ 5,307,459
- --------------------------------------------------------------------------------
Commitments and contingent liabilities (Note 19)
- --------------------------------------------------------------------------------
                                                         $23,962,652 $20,993,343
- --------------------------------------------------------------------------------

The accompanying Notes to Financial Statements are an integral part of the above statements.

29

Statements of Consolidated Capitalization
                            Commonwealth Edison Company and Subsidiary Companies
       (thousands of dollars)            December 31,         1993         1992
       ----------------------------------------------  -----------  -----------
Common stock equity
(Notes 4, 5 and 19):
       Common stock, $12.50 par value per share--
        Outstanding--213,751,147 shares and
        213,305,404 shares, respectively               $ 2,671,889  $ 2,666,318
       Premium on common stock and other paid-in
        capital                                          2,217,110    2,210,524
       Capital stock and warrant expense                   (16,258)     (16,196)
       Retained earnings (Note 2)                          549,152      847,186
      --------------------------------------------------------------------------
                                                       $ 5,421,893  $ 5,707,832
- --------------------------------------------------------------------------------
Preferred and preference stocks without mandatory redemption requirements
(Notes 4, 6 and 11):
       Preference stock, cumulative, without par
        value--
        Outstanding--10,499,549 shares                 $   432,320  $   432,320
       $1.425 convertible preferred stock,
        cumulative, without par value--
        Outstanding--286,949 shares and 308,891
        shares, respectively                                 9,125        9,822
       Prior preferred stock, cumulative, $100 par
        value per share--
        No shares outstanding                                  --           --
      --------------------------------------------------------------------------
                                                       $   441,445  $   442,142
- --------------------------------------------------------------------------------
Preference stock subject to mandatory redemption requirements
(Notes 4, 7 and 11):
       Preference stock, cumulative, without par
        value--
        Outstanding--3,290,290 shares and 4,425,445
        shares, respectively                           $   327,653  $   348,442
       Current redemption requirements for preference
        stock included in current liabilities              (17,689)     (35,653)
      --------------------------------------------------------------------------
                                                       $   309,964  $   312,789
- --------------------------------------------------------------------------------
Long-term debt
(Notes 8, 11 and 20):
       First mortgage bonds:
        Maturing 1993 through 1998--5 1/4% to 10 1/8%  $   818,000  $ 1,013,000
        Maturing 1999 through 2008--6 3/8% to 10 3/8%    2,204,600    2,149,655
        Maturing 2009 through 2018--7 1/4% to 12%          956,000    1,311,000
        Maturing 2019 through 2023--7 3/4% to 9 7/8%     2,020,000    1,460,000
      --------------------------------------------------------------------------
                                                       $ 5,998,600  $ 5,933,655
       Sinking fund debentures, due 1999 through
        2011--2 3/4% to 7 5/8%                             120,185      121,093
       Pollution control obligations, due 2004
        through 2014--5 7/8% to 11 3/8%                    353,200      353,200
       Other long-term debt                              1,598,625    1,613,246
       Current maturities of long-term debt included
        in current liabilities                            (446,724)    (351,124)
       Unamortized net debt discount and premium
        (Note 1)                                           (73,124)     (69,378)
      --------------------------------------------------------------------------
                                                       $ 7,550,762  $ 7,600,692
- --------------------------------------------------------------------------------
                                                       $13,724,064  $14,063,455
- --------------------------------------------------------------------------------

The accompanying Notes to Financial Statements are an integral part of the above statements.

30

Statements of Consolidated Cash Flows
                            Commonwealth Edison Company and Subsidiary Companies
       (thousands of dollars)                   1993         1992        1991
       -------------------------------   -----------  -----------  ----------
Cash flow from operating activities:
       Net income                        $   112,440  $   513,981  $   94,887
       Adjustments to reconcile net
        income to net cash provided by
        operating activities:
        Depreciation and amortization        911,136      874,156     874,660
        Deferred income taxes and
         investment tax credits--net          85,079      109,850      65,154
        Cumulative effect of change in
         accounting for income taxes          (9,738)         --          --
        Equity component of allowance
         for funds used
         during construction                 (20,618)     (19,960)    (18,272)
        Provisions for revenue refunds
         and related interest              1,354,197       73,370      12,584
        Revenue refunds and related
         interest                           (190,723)    (248,360)    (90,332)
        Disallowed plant costs                   --           --      644,862
        Recovery/(deferral) of
         regulatory assets/deferred
         carrying charges--net              (432,948)       3,330     (39,704)
        Provisions/(payments) for
         liability for early
         retirement and separation
         costs--net                           (1,816)      27,814         --
        Provisions/(payments) for
         liabilities associated with
         remediation costs and
         manufactured gas plants--net          5,000         (478)     25,000
        Net effect on cash flows of
         changes in:
         Receivables                        (157,405)      70,776    (196,558)
         Coal and fuel oil                   215,382     (111,333)     95,779
         Materials and supplies                1,834        1,990     (36,496)
         Accounts payable adjusted for
          nuclear fuel lease principal
          payments and
          provisions/(payments) for
          liability for early
          retirement and separation
          costs--net                         278,946      315,822     280,131
         Accrued interest and taxes          (39,234)     (85,633)    101,259
         Other changes in certain
          current assets and
          liabilities                         (6,637)      (9,031)     40,891
        Other--net                           144,318       61,328      83,452
      ------------------------------------------------------------------------
                                         $ 2,249,213  $ 1,577,622  $1,937,297
- ------------------------------------------------------------------------------
Cash flow from investing activities:
       Construction expenditures         $  (841,525) $  (995,881) $ (961,168)
       Nuclear fuel expenditures            (261,370)    (220,347)   (250,559)
       Equity component of allowance
        for funds used during
        construction                          20,618       19,960      18,272
       Investment in nuclear
        decommissioning funds               (173,378)    (156,017)   (117,294)
       Investment in coal reserves               (43)     (79,961)    (78,678)
       Investment in subsidiary
        companies                                --          (268)        --
       Other cash investments               (619,349)      23,853     416,144
      ------------------------------------------------------------------------
                                         $(1,875,047) $(1,408,661) $ (973,283)
- ------------------------------------------------------------------------------
Cash flow from financing activities:
       Issuance of securities--
        Long-term debt                   $ 1,927,296  $ 1,962,737  $  736,281
        Capital stock                         80,585       15,568      13,334
       Retirement and redemption of
        securities--
        Long-term debt                    (1,900,540)  (1,214,730)   (795,236)
        Capital stock                        (93,081)     (50,069)    (75,546)
       Deposits and securities held
        for retirement and redemption
        of securities                        241,731     (245,028)      4,043
       Premium paid on early
        redemption of long-term debt         (78,395)     (10,809)    (25,855)
       Cash dividends paid on capital
        stock                               (408,285)    (635,370)   (716,849)
       Proceeds from sale/leaseback of
        nuclear fuel                         204,254      190,830     240,263
       Nuclear fuel lease principal
        payments                            (245,968)    (245,877)   (231,150)
       Increase in short-term
        borrowings                               350        3,600         250
      ------------------------------------------------------------------------
                                         $  (272,053) $  (229,148) $ (850,465)
- ------------------------------------------------------------------------------
       Increase (Decrease) in cash and
        temporary cash investments       $   102,113  $   (60,187) $  113,549
       Cash and temporary cash
        investments at beginning of
        year                                  145,749     205,936      92,387
- ------------------------------------------------------------------------------
       Cash and temporary cash
        investments at end of year       $   247,862  $   145,749  $  205,936
- ------------------------------------------------------------------------------

The accompanying Notes to Financial Statements are an integral part of the above statements.

31

Statements of Consolidated Retained Earnings Commonwealth Edison Company and Subsidiary Companies

       (thousands of dollars)                   1993       1992       1991
       -----------------------------------  -------- ---------- ----------
Balance Beginning of year                   $847,186 $  893,702 $1,513,894
Add
       Net income                            112,440    513,981     94,887
      --------------------------------------------------------------------
                                            $959,626 $1,407,683 $1,608,781
- --------------------------------------------------------------------------
Deduct
       Cash dividends declared on--
        Common stock                        $341,683 $  489,768 $  637,480
        Preferred and preference stocks       65,688     70,101     77,599
       Loss on reacquired preference stock     3,103        628        --
      --------------------------------------------------------------------
                                            $410,474 $  560,497 $  715,079
- --------------------------------------------------------------------------
Balance
       End of year                          $549,152 $  847,186 $  893,702
- --------------------------------------------------------------------------

Statements of Consolidated Premium on Common Stock and Other Paid-In Capital Commonwealth Edison Company and Subsidiary Companies

       (thousands of dollars)                     1993       1992       1991
       -----------------------------------  ---------- ---------- ----------
Balance Beginning of year                   $2,210,524 $2,202,496 $2,194,314
Add
       Premium on issuance of common stock
        and gain on reacquired preference
        stock                                    6,586      8,028      8,182
- ----------------------------------------------------------------------------
Balance
       End of year                          $2,217,110 $2,210,524 $2,202,496


The accompanying Notes to Financial Statements are an integral part of the above statements.

32

Notes to Financial Statements
Commonwealth Edison Company and Subsidiary Companies

1 Summary of Significant Accounting Policies

Regulation. Commonwealth Edison Company (Company) is subject to the regulation of the Illinois Commerce Commission (ICC) and Federal Energy Regulatory Commission (FERC). The Company's accounting policies and the accompanying consolidated financial statements conform to generally accepted accounting principles applicable to rate-regulated enterprises and reflect the effects of the ratemaking process. Such effects concern mainly the time at which various items enter into the determination of net income in order to follow the principle of matching costs and revenues. See "Management's Discussion and Analysis of Financial Condition and Results of Operations," subcaption "Liquidity and Capital Resources," for information related to the Company's rates and financial condition.

Principles of Consolidation. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary, Commonwealth Edison Company of Indiana, Inc. (collectively, companies), the only subsidiary engaged in the electric utility business. The consolidated financial statements also include the accounts of the Company's wholly-owned subsidiary, CECo Enterprises Inc., an unregulated subsidiary engaged in energy service activities. All significant intercompany transactions have been eliminated. The investments in other subsidiary companies, which are not material in relation to the Company's financial position and results of operations, are accounted for in accordance with the equity method of accounting.

Customer Receivables and Revenues. The Company is engaged principally in the production, purchase, transmission, distribution and sale of electricity to a diverse base of residential, commercial and industrial customers. The Company's electric service territory has an area of approximately 11,540 square miles and an estimated population of approximately 8.1 million as of December 31, 1993, approximately 8.2 million as of December 31, 1992 and approximately 8.1 million as of December 31, 1991. It includes the city of Chicago, an area of about 225 square miles with an estimated population of three million from which the Company derived approximately one-third of its ultimate consumer revenues in 1993. The Company had approximately 3.3 million electric customers at December 31, 1993.

Depreciation. Depreciation is provided on the straight-line basis by amortizing the cost of depreciable plant and equipment over estimated composite service lives. Such provisions for depreciation were at average annual rates of 3.12%, 3.12% and 3.22% of average depreciable utility plant and equipment for the years 1993, 1992 and 1991, respectively. The ICC's March 8, 1991 rate order directs the Company to depreciate non-nuclear plant and equipment at annual rates developed for each class of plant based on their composite service lives. The annual rate for nuclear plant and equipment is 2.88% which excludes decommissioning costs. The provisions for chemical cleaning are reflected in the Statements of Consolidated Income in maintenance expense and in the Consolidated Balance Sheets in other noncurrent liabilities.

Nuclear plant decommissioning costs are accrued over the expected service life of the related nuclear generating stations. The accrual is based on an annual levelized cost of the unrecovered portion of decommissioning costs which are escalated for expected inflation to the expected time of decommissioning and are net of expected earnings on the trust fund. See "Decommissioning" under "Management's Discussion and Analysis of Financial Condition and Results of Operations," subcaption "Results of Operations," for a discussion of questions raised by the staff of the Securities and Exchange Commission regarding the electric utility industry accounting for decommissioning costs. Decommissioning is expected to occur relatively soon after the end of the useful life of each related generating station using a prompt removal method authorized by the Nuclear Regulatory Commission (NRC) guidelines. The Company's twelve operating units have estimated remaining service lives ranging from 13 to 34 years. The Company's first nuclear unit is retired and will be decommissioned with the operating units at that station, which is consistent with the regulatory treatment for the related decommissioning costs.
The Company has recently completed a study which determined that decommissioning costs, including the costs of decontamination, dismantling and site restoration are estimated to aggregate $4.06 billion, in current- year (1993) dollars. This compares to the estimate for decommissioning costs of $2.32 billion, in current-year (1993) dollars, reflected in the Company's last rate order of March 8, 1991. The $4.06 billion estimate is based on plant location and cost characteristics for the Company's nuclear plants. The estimate includes additional low level waste burial costs, higher labor costs due to expected reduced NRC annual dose limit requirements and higher costs resulting from an additional five year period in the decommissioning process to allow sufficient cooling of on- site spent nuclear fuel before it is removed from the fuel pool.
On February 10, 1994, the Company filed a rate increase request with the
ICC. As part of that request, the Company proposed to increase its annual accrual of decommissioning costs to approximately $170 million from the current level of $127 million approved in the March 8, 1991 rate order. The assumptions used to calculate the $43 million proposed increase in the annual accrual of decommissioning costs (such as the current decommissioning costs estimate of $4.06 billion, after-tax earnings on the tax-qualified and nontax-qualified decommissioning funds of 7.30% and 6.26%, respectively, as well as a future escalation rate of 5.3% in decommissioning costs) reflect some uncertainty. The rate filing is designed to provide greater assurance than current rate levels that sufficient funds will be available in the external decommissioning trusts for decommissioning expenditures when the nuclear plants are retired. The current accrual of $127 million, coupled with accumulated earnings on the trust fund assets, would provide approximately the same amount of funds to pay estimated decommissioning costs if a 4.5% escalation rate is assumed. Decommissioning costs are recorded as portions of depreciation expense and accumulated provision for depreciation on the Statements of Consolidated Income and the Consolidated Balance Sheets. As of December 31, 1993, the total decommissioning costs included in the accumulated provision for depreciation was approximately $914 million. Illinois law requires the Company to establish external trusts, and the ICC has approved the Company's funding plan and requires annual contributions of current accruals and ratable contributions of past accruals over the remaining service lives of the nuclear plants. The book value of funds accumulated in the external trusts at December 31, 1993 was approximately $707 million. The earnings on the external trusts accumulate in the fund balance and in the accumulated provision for depreciation. Such earnings on the external trust funds for the years 1993, 1992, and 1991, which have been recorded as a component of depreciation expense in the Company's Statements of Consolidated Income, were $40,829,000, $32,443,000 and $24,231,000, respectively.

33

Amortization of Nuclear Fuel. The cost of nuclear fuel is amortized to fuel expense based on the quantity of heat produced using the unit of production method. As authorized by the ICC, provisions for spent nuclear fuel disposal costs have been recorded at a level required to recover the fee payable on current nuclear-generated and sold electricity and the current interest accrual on the one-time fee payable to the Department of Energy (DOE) for nuclear generation prior to April 7, 1983. The one-time fee and interest thereon have been recovered and the current fee and current interest on the one-time fee are currently being recovered through the fuel adjustment clause. See Note 10 for further information concerning the disposal of spent nuclear fuel, the one-time fee and the current interest accrual on the one-time fee. Nuclear fuel expenses, including leased fuel costs and provisions for spent nuclear fuel disposal costs, for the years 1993, 1992 and 1991 were $385,894,000, $366,821,000 and $331,913,000, respectively.
In connection with the Energy Policy Act of 1992, investor-owned electric utilities that have purchased enrichment services from the DOE will be assessed annually for a fifteen-year period amounts to fund a portion of the cost for the decontamination and decommissioning of three nuclear enrichment facilities previously operated by the DOE. The Company's portion of such assessments is estimated to be approximately $15 million per year (to be adjusted annually for inflation). The Act provides that such assessments are to be treated as a cost of fuel. At December 31, 1993, the Company had recorded a liability of approximately $177 million in other noncurrent liabilities and approximately $29 million in other current liabilities. The related asset was recorded in regulatory assets. Approximately $15 million and $4 million associated with such assessments were amortized to fuel expense in 1993 and 1992, respectively, and were reflected in the fuel adjustment clause.

Income Taxes. Deferred income taxes are provided for income and expense items recognized for financial accounting purposes in periods that differ from those for income tax purposes. Income taxes deferred in prior years are charged or credited to income as the book/tax timing differences reverse. Prior years' deferred investment tax credits are amortized through credits to income generally over the lives of the related property. Income tax credits resulting from interest charges applicable to nonoperating activities, principally construction, are classified as other income.
For additional information relating to income taxes, including information related to the Company's adoption in January 1993 of Statement of Financial Accounting Standards (SFAS) No. 109, which requires an asset and liability approach to accounting for income taxes, see Note 14. In addition, see "Taxes" under the subcaption "Results of Operations," in "Management's Discussion and Analysis of Financial Condition and Results of Operations."

Allowance for Funds Used During Construction (AFUDC). In accordance with uniform systems of accounts prescribed by regulatory authorities, the Company capitalizes AFUDC, compounded semiannually, which represents the estimated cost of funds used to finance its construction program. The equity component of AFUDC is recorded on an after-tax basis and the borrowed funds component of AFUDC is recorded on a pre-tax basis. The average annual capitalization rates for the years 1993, 1992 and 1991 were 10.05%, 10.31% and 11.07%, respectively.

34

For additional information regarding AFUDC, see Note 14 and "Other Items," under the subcaption "Results of Operations," in "Management's Discussion and Analysis of Financial Condition and Results of Operations."

Interest. Total interest costs incurred on debt, leases and other obligations for the years 1993, 1992 and 1991 were $778,639,000, $777,122,000 and $767,860,000, respectively.

Debt Discount, Premium and Expense. Discount, premium and expense on long-term debt are being amortized over the lives of the respective issues.

Loss on Reacquired Debt. Consistent with regulatory treatment, the net loss from reacquisition of first mortgage bonds, debentures and pollution control obligations prior to their scheduled maturity date is deferred and amortized over the lives of the long-term debt or notes issued to finance the reacquisition.

Deferred Recovery of Energy Costs. The uniform fuel adjustment clause adopted by the ICC provides for the recovery of changes in fossil and nuclear fuel costs and the energy portion of purchased power costs as compared to the fuel and purchased energy costs included in base rates. As authorized by the ICC, the Company has recorded under or overrecoveries of allowable fuel and energy costs which, under the clause, are recoverable or refundable in subsequent months. For information relating to the annual reconciliation proceedings held by the ICC with respect to the Company's fuel and power purchases, see Note 3.

Regulatory Assets and Liabilities. Regulatory assets include the unamortized portions of certain rate case and consultant costs associated with the prudency audits of Byron and Braidwood stations which the ICC allowed to be deferred and amortized for ratemaking purposes, unamortized deferred depreciation related to Byron Unit 1 which the ICC allowed to be deferred and amortized over the remaining life of the unit, unamortized losses on reacquired debt, unamortized deferred carrying charges associated with the Byron and Braidwood stations which the ICC allowed to be deferred and amortized for ratemaking purposes, a regulatory asset for the Company's unamortized balance of a fifteen-year assessment by the DOE for the decontamination and decommissioning of certain enrichment facilities and a regulatory asset recorded in compliance with SFAS No. 109, which the Company adopted in January 1993. A regulatory liability was also recorded in compliance with SFAS No. 109.
For additional information relating to rate case and consultant costs and deferred carrying charges, see "Recovery/(Deferral) of Regulatory Assets--Net," under the subcaption "Results of Operations," in "Management's Discussion and Analysis of Financial Condition and Results of Operations."

35

Statements of Cash Flows. For purposes of the statements of consolidated cash flows, temporary cash investments, generally investments maturing in three months or less at the time of purchase, are considered to be cash equivalents. Supplemental information required by SFAS No. 95 for the years 1993, 1992 and 1991 is as follows:

 (thousands of dollars)                           1993     1992     1991
 -------------------------------------------  -------- -------- --------
 Supplemental cash flow information:
  Cash paid during the year for:
   Interest (net of amount capitalized)       $677,669 $652,501 $700,876
   Income taxes                               $103,014 $238,052 $210,714
 Supplemental schedule of non-cash investing
  and
  financing activities:
  Capital lease obligations incurred          $213,758 $193,677 $244,030
------------------------------------------------------------------------


2 Settlements Relating to Certain Rate Matters

On September 24, 1993, the Company's Board of Directors approved two proposed settlements which the Company's management had reached with parties involved in several of the proceedings and matters relating to the level of the Company's rates for electric service. One of the proposed settlements (Rate Matters Settlement) concerns the proceedings relating to the Company's 1985 and 1991 ICC rate orders (which orders relate to, among other things, the recovery of costs associated with the Company's four most recently completed nuclear generating plants, Byron Units 1 and 2 and Braidwood Units 1 and 2), the proceedings relating to the reduction in the difference between the Company's summer and non-summer residential rates that was effected in the summer of 1988, outstanding issues relating to the appropriate interest rate and rate design to be applied to a refund made by the Company during 1990 relating to a December 1988 ICC rate order, and matters related to a rider to the Company's rates that the Company was required to file as a result of the change in the federal corporate income tax rate made by the Tax Reform Act of 1986. The other proposed settlement (Fuel Matters Settlement) relates to the ICC fuel reconciliation proceedings involving the Company for the period from 1985 through 1988 and to future challenges by the settling parties to the prudency of the Company's western coal costs for the period from 1989 through 1992. Each of these settlements was subject to appropriate action by the ICC or the courts having jurisdiction over the proceedings.
As a result of subsequent ICC and judicial actions, the Rate Matters Settlement became final on November 4, 1993. Under the Rate Matters Settlement, effective as of November 4, 1993, the Company reduced its rates by approximately $339 million annually and commenced refunding approximately $1.26 billion (including revenue taxes), plus interest at five percent on the unpaid balance, through temporarily reduced rates over an initial refund period scheduled to be twelve months (to be followed by a reconciliation period of no more than five months). The Company had previously deferred the recognition of revenues during 1993 as a result of developments in the proceedings related to the March 1991 ICC rate order, which resulted in a reduction to 1993 net income of approximately $160 million. The recording of the effects of the Rate Matters Settlement in October 1993 reduced the Company's 1993 net income and retained earnings by approximately $292 million or $1.37 per common share, in addition to the effect of the deferred recognition of revenues and after the partially offsetting effect of recording approximately $269 million (or $1.26 per common share) in deferred carrying charges, net of income taxes, authorized in the ICC rate order issued on January 6, 1993 (as subsequently modified, the Remand Order). In January 1994, a purported class action was filed in the Circuit Court of Cook County, Illinois (Circuit Court) challenging the method in which the refunds are being made to residential customers in the Rate Matters Settlement. The Company does not believe that the complaint has any merit.

36

In the Remand Order, the rate determination was based upon, among other things, findings by the ICC with respect to the extent to which Byron Unit 2 and Braidwood Units 1 and 2 (Units) were "used and useful" during the 1991 test year period of the rate order. With respect to the "used and useful" issue, the ICC applied a needs and economic benefits methodology, using a twenty percent reserve margin and forecasted peak demand, and found Byron Unit 2 and Braidwood Units 1 and 2 to be 93%, 21% and 0%, respectively, "used and useful." The Company has not recorded any disallowances related to the "used and useful" issue. The Company considers the "used and useful" disallowance in the Remand Order to be temporary. The ICC concluded in the Remand Order that the forecasts in the record in that proceeding indicate that Braidwood Units 1 and 2 will be fully "used and useful" within the reasonably foreseeable future.
As a result of subsequent ICC actions, the Fuel Matters Settlement became final on November 15, 1993. Under the Fuel Matters Settlement, effective as of December 2, 1993, the Company commenced paying approximately $108 million (including revenue taxes) to its customers through temporarily reduced collections under its fuel adjustment clause over a twelve-month period. The Company recorded the effects of the Fuel Matters Settlement in October 1993, which effects reduced the Company's net income and retained earnings by approximately $62 million or $0.29 per common share.
For additional information regarding the proceedings and matters settled, see Notes 3, 17 and 19.


3 Rate Matters

The Company's revenues, net income, cash flows and plant carrying costs have been affected directly by various rate-related proceedings. During the periods presented in the financial statements, the Company was involved in proceedings concerning its October 1985 ICC rate order (which related principally to the recovery of costs associated with its Byron Unit 1 nuclear generating unit), proceedings concerning its March 1991 ICC rate order (which related principally to the recovery of costs associated with the Units), proceedings concerning the reduction in the difference between the Company's summer and non- summer residential rates that was effected in the summer of 1988, and ICC fuel reconciliation proceedings principally concerning the recoverability of the costs of the Company's western coal. In addition, there were outstanding issues related to the appropriate interest rate and rate design to be applied to a refund that was made in 1990 following the reversal of a December 1988 ICC rate order and a rider to the Company's rates that the Company was required to file as a result of the change in the federal corporate income tax rate made by the Tax Reform Act of 1986. The uncertainties associated with such proceedings and issues, among other things, led to the Rate Matters Settlement and the Fuel Matters Settlement. See Note 2 for additional information.
For additional information regarding the foregoing proceedings, see Notes 2 and 3 of Notes to Financial Statements in the Company's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 1993.


4 Authorized Shares and Voting Rights of Capital Stock

At December 31, 1993, the authorized shares of capital stock were:
common stock--250,000,000 shares; preference stock--23,600,290 shares; $1.425 convertible preferred stock--286,949 shares; and prior preferred stock--850,000 shares. The prior preferred and preference stocks are issuable in series and may be issued with or without mandatory redemption requirements. Holders of shares at any time outstanding, regardless of class, are entitled to one vote for each share held on each matter submitted to a vote at a meeting of shareholders, with the right to cumulate votes in all elections for directors.

37


5 Common Stock

At December 31, 1993, shares of common stock were reserved for the following purposes:

 Common stock reserved
 -----------------------------------------------------------
 1993 Stock Incentive Plan                         4,000,000
 Employe Stock Purchase Plan                       1,422,368
 Employe Savings and Investment Plan                 565,803
 Conversion of $1.425 convertible preferred stock    292,687
 Conversion of warrants                               42,899
------------------------------------------------------------
                                                   6,323,757
------------------------------------------------------------

Shares of common stock for the years 1993, 1992 and 1991 were issued as follows:

 Common stock issued        1993    1992    1991
 ----------------------  ------- ------- -------
 Employe Stock Purchase
  Plan                   268,594 374,815 228,738
 Employe Savings and
  Investment Plan        153,400 235,900 132,140
 Conversion of $1.425
  convertible preferred
  stock                   22,375  16,221  28,146
 Conversion of warrants    1,374   1,300   2,773
------------------------------------------------
                         445,743 628,236 391,797
------------------------------------------------

At December 31, 1993 and 1992, 128,699 and 133,003 common stock purchase warrants, respectively, were outstanding. The warrants entitle the holders to convert such warrants into common stock at a conversion rate of one share of common stock for three warrants.


6 Preferred and Preference Stocks Without Mandatory Redemption Requirements

No shares of preferred or preference stocks without mandatory redemption requirements were issued or redeemed by the Company during 1993, 1992 and 1991. The series of preference stock without mandatory redemption requirements outstanding at December 31, 1993 are summarized as follows:

                                  Aggregate
                               Stated Value                        Involuntary
                  Shares         (thousands       Redemption       Liquidation
 Series      Outstanding        of dollars)         Price(a)          Price(a)
 ------      -----------       ------------       ----------       -----------

 $1.90        4,249,549            $106,239          $ 25.25            $25.00
 $2.00        2,000,000              51,560          $ 26.04            $25.00
 $1.96        2,000,000              52,440          $ 27.11            $25.00
 $7.24          750,000              74,340          $101.00            $99.12
 $8.40          750,000              74,175          $101.00            $98.90
 $8.38          750,000              73,566          $100.16            $98.09
------------------------------------------------------------------------------
             10,499,549            $432,320
------------------------------------------------------------------------------

(a) Per share plus accrued and unpaid dividends, if any.

The outstanding shares of the $1.425 convertible preferred stock are convertible at the option of the holders thereof, at any time, into common stock at the rate of 1.02 shares of common stock for each share of convertible preferred stock, subject to future adjustment. The convertible preferred stock may be redeemed by the Company at $42 per share, plus accrued and unpaid dividends, if any. The involuntary liquidation price of the $1.425 convertible preferred stock is $31.80 per share, plus accrued and unpaid dividends, if any. During 1993, 1992 and 1991, 21,942 shares, 15,911 shares and 27,606 shares, respectively, of the convertible preferred stock were converted into common stock.

38


7 Preference Stock Subject to Mandatory Redemption Requirements

During 1993, 700,000 shares of preference stock subject to mandatory redemption requirements were issued. During 1992 and 1991, no shares of preference stock subject to mandatory redemption requirements were issued. The series of preference stock subject to mandatory redemption requirements outstanding at December 31, 1993 are summarized as follows:

                              Aggregate
                                 Stated
                                  Value
                             (thousands
                      Shares         of
 Series          Outstanding   dollars) Optional Redemption Price(a)
 --------------  ----------- ---------- ---------------------------------------
 $8.20               321,420   $ 32,142 $103 through October 31, 1997; and $101
                                        thereafter
 $8.40 Series B      418,870     41,605 $101
 $8.85               375,000     37,500 $103 through July 31, 1998; and $101
                                        thereafter
 $9.25               825,000     82,500 $105 through July 31, 1994; $103
                                        through July 31, 1999; and $101
                                        thereafter
 $9.00               650,000     64,431 Non-callable
 $6.875              700,000     69,475 Non-callable
-------------------------------------------------------------------------------
                   3,290,290   $327,653
-------------------------------------------------------------------------------

(a) Per share plus accrued and unpaid dividends, if any.

The annual sinking fund requirements and sinking fund and involuntary liquidation prices per share of the outstanding series of preference stock subject to mandatory redemption requirements are summarized as follows:

                                                     Sinking Fund          Involuntary
 Series              Annual Sinking Fund Requirement     Price(a) Liquidation Price(a)
 --------------  ----------------------------------- ------------ --------------------
 $8.20            35,715 shares                              $100             $100.00
 $8.40 Series B   30,000 shares(b)                           $100             $ 99.326
 $8.85            37,500 shares                              $100             $100.00
 $9.25            75,000 shares                              $100             $100.00
 $9.00           130,000 shares beginning in 1996(b)         $100             $ 99.125
 $6.875                  (c)                                 $100             $ 99.25
--------------------------------------------------------------------------------------

(a) Per share plus accrued and unpaid dividends, if any.
(b) The Company has a non-cumulative option to increase the annual sinking fund payment on each sinking fund redemption date to retire an additional number of shares, not in excess of the sinking fund requirement, at the applicable redemption price.
(c) All shares are required to be redeemed on May 1, 2000.

Annual remaining sinking fund requirements through 1998 on preference stock outstanding at December 31, 1993 will aggregate $17,709,000 in 1994, $17,822,000 in 1995, $30,822,000 in 1996, $30,822,000 in 1997 and $30,822,000 in 1998. During 1993, 1992 and 1991, 1,835,155 shares, 793,132 shares and 1,093,038 shares, respectively, of preference stock subject to mandatory redemption requirements were reacquired to meet sinking fund requirements.
Sinking fund requirements due within one year are included in current liabilities.
On November 1, 1991, the Company redeemed 80,000 shares of its $11.125 Series of preference stock at the sinking fund redemption price of $100 per share, plus accrued and unpaid dividends and redeemed all of the remaining 80,000 shares at the optional redemption price of $100 per share, plus accrued and unpaid dividends.
On November 1, 1992, the Company redeemed 300,000 shares of its $2.875 Series of preference stock at the optional redemption price of $25 per share and 75,000 shares of its $11.70 Series of preference stock at the optional redemption price of $100 per share, plus accrued and unpaid dividends.

39

On June 28, 1993, the Company redeemed all 170,810 shares of its $2.875 Series of preference stock and all 1,050,000 shares of its $2.375 Series of preference stock, both at the optional redemption price of $25.25 per share, plus accrued and unpaid dividends.
On November 1, 1993, the Company redeemed the remaining 75,000 shares of its $11.70 Series of preference stock (150,000 shares had been redeemed on August 1, 1993 at the optional redemption price of $105 per share, plus accrued and unpaid dividends). Of the remaining 75,000 shares, 37,500 shares were redeemed to meet the November 1, 1993 mandatory sinking fund requirement and 37,500 shares were redeemed as a permitted optional sinking fund payment, both at the sinking fund redemption price of $100 per share, plus accrued and unpaid dividends.
On November 1, 1993, the Company redeemed all 210,000 shares of its $9.30 Series of preference stock, of which 70,000 shares were redeemed at the optional redemption price of $101.03 per share, plus accrued and unpaid dividends, 70,000 shares were redeemed to meet the November 1, 1993 mandatory sinking fund requirement and 70,000 shares were redeemed as a permitted optional sinking fund payment, the latter two at the sinking fund redemption price of $100 per share, plus accrued and unpaid dividends.


8 Long-Term Debt

Sinking fund requirements and scheduled maturities remaining through 1998 for first mortgage bonds, debentures and other long-term debt outstanding at December 31, 1993, after deducting debentures and first mortgage bonds reacquired for satisfaction of future sinking fund requirements, are summarized as follows: 1994 -- $446,724,000; 1995 -- $496,027,000; 1996 -- $233,449,000; 1997 -- $395,038,000; and 1998 -- $350,027,000.
At December 31, 1993, the Company had outstanding first mortgage bonds maturing 1994 through 1998 as follows:

                                    Principal Amount
 Series                       (thousands of dollars)
 ---------------------------  ----------------------
 6 1/8% due May 15, 1995                    $103,000
 5 1/4% due April 1, 1996                     50,000
 5 3/4% due November 1, 1996                  50,000
 5 3/4% due December 1, 1996                  50,000
 7% due February 1, 1997                     150,000
 5 3/8% due April 1, 1997                     50,000
 6 1/4% due October 1, 1997                   60,000
 6 1/4% due February 1, 1998                  50,000
 6% due March 15, 1998                       130,000
 6 3/4% due July 1, 1998                      50,000
 6 3/8% due October 1, 1998                   75,000
----------------------------------------------------
                                            $818,000
----------------------------------------------------

40

Other long-term debt outstanding at December 31, 1993 is summarized as follows:

                                         Principal Amount
 Debt Security                     (thousands of dollars) Interest Rate Provisions
 --------------------------------  ---------------------- ---------------------------------------------
 Notes
  Medium Term Notes, Series 1N                 $   82,500 Interest rates ranging from 9.27% to
   due various dates through                               10.48%
   April 1, 1998
  Medium Term Notes, Series 2N                     56,300 Interest rates ranging from 9.57% to
   due various dates through                               9.874%
   July 1, 1996
  Medium Term Notes, Series 3N                    399,000 Interest rates ranging from 8.77% to
   due various dates through                               9.20%
   October 15, 2004
  Medium Term Notes, Series 4N                    195,000 Interest rates ranging from 7.90% to
   due various dates through                               8.875%
   May 15, 1997
  Notes due April 15, 1994                        180,000 Fixed interest rate of 5.75%
  Notes due July 15, 1995                         100,000 Fixed interest rate of 5.50%
  Notes due July 15, 1997                         100,000 Fixed interest rate of 6.50%
  Notes due October 15, 2005                      235,000 Fixed interest rate of 6.40%
-------------------------------------------------------------------------------------------------------
                                               $1,347,800
-------------------------------------------------------------------------------------------------------
 Long-Term Notes Payable to Banks
  Note due January 9, 1995                     $  100,000 Prevailing interest rate of 4.00% at
                                                           December 31, 1993
  Notes due July 31, 1995                         150,000 Prevailing interest rates averaging 3.875% at
                                                           December 31, 1993
-------------------------------------------------------------------------------------------------------
                                               $  250,000
-------------------------------------------------------------------------------------------------------
 Purchase Contract Obligations
  Woodstock due January 2, 1997                $      273 Fixed interest rate of 4.50%
  Hinsdale due April 30, 2005                         552 Fixed interest rate of 3.00%
-------------------------------------------------------------------------------------------------------
                                               $      825
-------------------------------------------------------------------------------------------------------
                                               $1,598,625
-------------------------------------------------------------------------------------------------------

Long-term debt maturing within one year has been included in current liabilities.
The Company's outstanding first mortgage bonds are secured by a lien on substantially all property and franchises, other than expressly excepted property, owned by the Company.


9 Lines of Credit

The Company had total bank lines of credit of approximately $981 million and unused bank lines of credit of approximately $975 million at December 31, 1993. Of that amount, $975 million (of which $175 million expires October 3, 1994, $40 million expires in equal quarterly installments commencing on December 31, 1994 and ending on September 30, 1996, $188 million expires in equal quarterly installments commencing on December 31, 1995 and ending on September 30, 1997 and $572 million expires in equal quarterly installments commencing on December 31, 1996 and ending on September 30, 1998) may be borrowed on secured or unsecured notes of the Company at various interest rates. The interest rate is set at the time of a borrowing and is based on several floating rate bank indices plus a spread which is dependent upon the Company's credit ratings, or on a prime interest rate. Amounts under the remaining lines of credit may be borrowed at prevailing prime interest rates on

41

unsecured notes of the Company. Collateral, if required for the borrowings, would consist of first mortgage bonds issued under and in accordance with the provisions of the Company's mortgage. The Company is obligated to pay commitment fees with respect to $975 million of such lines of credit.


10 Disposal of Spent Nuclear Fuel

Under the Nuclear Waste Policy Act of 1982, the DOE is responsible for the selection and development of repositories for, and the disposal of, spent nuclear fuel and high-level radioactive waste. The Company, as required by that Act, has signed a contract with the DOE to provide for the disposal of spent nuclear fuel and high-level radioactive waste from the Company's nuclear generating stations beginning not later than January 1998. The contract with the DOE requires the Company to pay the DOE a one-time fee applicable to nuclear generation through April 6, 1983 of approximately $277 million, with interest to date of payment, and a fee payable quarterly equal to one mill per kilowatthour of nuclear-generated and sold electricity after April 6, 1983. The Company has elected to pay the one-time fee, with interest, just prior to the first scheduled delivery of spent nuclear fuel to the DOE, which is scheduled to occur not later than January 1998; however, this delivery schedule is expected to be delayed significantly. The Company has recorded the liability for the one-time fee and the related interest.


11 Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of financial instruments held by or issued and outstanding by the companies. The disclosure of such information does not purport to be a market valuation of the Company as a whole. The impact of any realized or unrealized gains or losses related to such financial instruments on the Company's financial position or results of operations is dependent on the treatment authorized under future ratemaking proceedings.

Investments. The estimated fair value of the Nuclear Decommissioning Funds, as determined by the trustee for those funds, is based on published market data. Financial instruments included in Other Investments at a cost of approximately $4 million at December 31, 1993 and 1992, are not material in relation to other financial instruments of the Company; therefore, an estimate of the fair value of these instruments has not been made.

Current Assets. The carrying value of Cash, Temporary Cash Investments and Other Cash Investments, which includes U.S. Government Obligations and other short-term marketable securities, and Special Deposits, which primarily includes cash deposited for the redemption, refund or discharge of debt securities, approximates their fair value because of the short maturity of these instruments.

Capitalization. The estimated fair value of Preferred and Preference Stocks (Without and Subject to Mandatory Redemption Requirements) and Long-Term Debt, including the current portion thereof, has been obtained from an independent consultant. Estimated fair values exclude accrued interest and preferred and preference dividends. Purchase contract obligations included in Long-Term Debt at a cost of approximately $1 million at December 31, 1993 and 1992, are not material in relation to other financial instruments of the Company; therefore, an estimate of the fair value of these instruments has not been made. Long-Term Notes Payable to Banks in the amount of $250 million at December 31, 1993 and 1992, for which interest is paid at prevailing rates are included in the financial statements at cost, which approximates their fair value.

42

Current Liabilities. The carrying value of Notes Payable, which consists of commercial paper and/or bank loans having a maturity of less than one year, approximates their fair value because of the short maturity of these instruments. See "Capitalization" above for a discussion of the fair value of the current portion of long-term debt and redeemable preference stock.

Other Noncurrent Liabilities. The carrying value of Accrued Spent Nuclear Fuel Disposal Fee and Related Interest represents the settlement value as of December 31, 1993 and 1992; therefore, the carrying value is equal to the fair value.

The estimated fair values of the Company's financial instruments other than those instruments reflected in the financial statements at cost which approximates market, as of December 31, 1993 and 1992, are as follows:

 (thousands of dollars)       December 31, 1993     December 31, 1992
 -------------------------  --------------------- ---------------------
                              Carrying       Fair   Carrying       Fair
                                Amount      Value     Amount      Value
                            ---------- ---------- ---------- ----------
 Nuclear Decommissioning
  Funds                     $  706,841 $  768,823 $  533,463 $  564,476
 Capitalization (including
  current portion):
  Preferred and Preference
   Stocks (without and
   subject to mandatory
   redemption
   requirements)            $  769,098 $  776,113 $  790,584 $  828,913
  Long-Term Debt            $7,819,785 $8,158,975 $7,770,248 $8,025,191
-----------------------------------------------------------------------


12 Pension Benefits

The companies have non-contributory defined benefit pension plans which cover all regular employes. Benefits under these plans reflect each employe's compensation, years of service and age at retirement. Funding is based upon actuarially determined contributions that take into account the amount deductible for income tax purposes and the minimum contribution required under the Employee Retirement Income Security Act of 1974, as amended. Actuarial valuations were determined as of January 1, 1993 and 1992.
During 1992, the companies implemented a workforce reduction program designed to reduce the management workforce. This program included an early retirement program and voluntary and involuntary separation plans. The early retirement program resulted in the recognition for the year 1992 of an additional $26 million of pension cost and the disclosure of an additional $39 million of unrecognized net loss at December 31, 1992 as reflected in the following table. The companies also recognized in 1992 a charge to expense of $11 million primarily related to the cost of the separation plans. The total charge to income of $37 million in 1992 is approximately $23 million after reflecting income tax effects.

43

The funded status of these plans at December 31, 1993 and 1992 was as follows:

 (thousands of dollars)           December 31,         1993         1992
 ---------------------------------------------  -----------  -----------
 Actuarial present value of accumulated
  pension plan benefits:
  Vested benefit obligation                     $(2,350,000) $(2,232,000)
  Nonvested benefit obligation                     (118,000)    (112,000)
-------------------------------------------------------------------------
  Accumulated benefit obligation                $(2,468,000) $(2,344,000)
  Effect of projected future compensation
   levels                                          (477,000)    (454,000)
-------------------------------------------------------------------------
  Projected benefit obligation                  $(2,945,000) $(2,798,000)
 Fair value of plan assets, invested primarily
  in equity index funds, other managed equity
  and fixed income investments, U.S.
  Government, government-sponsored corporation
  and agency securities and listed corporate
  obligations                                     2,741,000    2,577,000
-------------------------------------------------------------------------
 Plan assets less than projected benefit
  obligation                                    $  (204,000) $  (221,000)
 Unrecognized prior service cost                     24,000       25,000
 Unrecognized transition asset                     (168,000)    (181,000)
 Unrecognized net loss                              131,000      211,000
-------------------------------------------------------------------------
   Accrued pension liability                    $  (217,000) $  (166,000)
-------------------------------------------------------------------------

The assumed discount rate was 7.5% and the assumed annual rate of increase in future compensation levels was 4.0% at December 31, 1993 and 1992. These rates were used in determining the projected benefit obligations, the accumulated benefit obligations and the vested benefit obligations.
Pension costs were determined under the rules prescribed by SFAS No. 87, including the use of the projected unit credit actuarial cost method and the following actuarial assumptions for periods during 1993, 1992 and 1991:

                                                         1993  1992  1991
 -----------------------------------------------------  ----- ----- -----
 Annual discount rate                                   7.50% 7.50% 8.50%
 Annual rate of increase in future compensation levels  4.00% 4.00% 5.00%
 Annual long-term rate of return on plan assets         9.50% 9.50% 9.50%
-------------------------------------------------------------------------

The components of pension costs, portions of which were recorded as components of construction costs, for the years 1993, 1992 and 1991 were as follows:

 (thousands of dollars)                   1993       1992       1991
 ----------------------------------  ---------  ---------  ---------
 Service cost                        $  96,000  $  98,000  $  81,000
 Interest cost on projected benefit
  obligation                           204,000    189,000    174,000
 Actual return on plan assets         (310,000)  (179,000)  (495,000)
 Early retirement program cost              --     26,000         --
 Net amortization and deferral          61,000    (67,000)   286,000
---------------------------------------------------------------------
                                     $  51,000  $  67,000  $  46,000
---------------------------------------------------------------------

In addition, the companies provide an employe savings and investment plan available to all regular employes who have completed three months of service. Each participating employe may contribute up to 20% of such employe's base pay and the companies match such contribution equal to 70% of up to the first 5% of contributed base salary. During 1993, 1992 and 1991, the Company contributed $21,948,000, $20,023,000 and $14,643,000, respectively.

44


13 Postretirement Health Care Benefits

The companies provide certain postretirement health care benefits for retirees and their dependents and for the surviving dependents of eligible employes and retirees. Substantially all of the companies' employes become eligible for postretirement health care benefits when they reach retirement age while working for the companies. In 1980, the companies began funding the liability for postretirement health care benefits through a trust fund, and the estimated cost of postretirement health care benefits has been accrued and funded over the working lives of the employes. Funding is based upon actuarially determined contributions that take into account the amount deductible for income tax purposes.
For the years 1980 through 1992, the liability for postretirement health care benefits and the related provisions for postretirement health care were equivalent to actuarial normal costs attributed over participants' employment periods from date of hire to the expected retirement date based on the aggregate cost method. On January 1, 1993, the companies adopted SFAS No. 106, Employers' Accounting for Postretirement Benefits Other Than Pensions, which requires that postretirement benefits be determined based on the projected unit credit actuarial cost method and attributed over employment periods of plan participants to the date of eligibility for postretirement benefits rather than over the entire employment period. By adopting the new standard, the companies estimate that for the year ended December 31, 1993, postretirement costs increased $20 million resulting in a decrease in net income of $10 million or $0.05 per common share, net of income taxes and the portion of the costs charged to construction. The transition obligation of $588 million shown in the following schedule is being amortized over 20.6 years. The ultimate effects on income are dependent on the treatment authorized in future ratemaking proceedings. As indicated in the previous paragraph, the companies have accounted for postretirement health care benefits on an accrual basis since 1980 and accrual basis costs have been reflected in rates in ratemaking proceedings.
Actuarial valuations were determined as of January 1, 1993. The funded status of the plan at January 1, 1993 and December 31, 1993 was as follows:

 (thousands of dollars)               January 1, 1993  December 31, 1993
 -----------------------------------  ---------------  -----------------
 Actuarial present value of
  accumulated postretirement health
  care obligation:
  Retirees                                $  (407,000)       $  (444,000)
  Active fully eligible participants          (60,000)           (65,000)
  Other participants                         (538,000)          (586,000)
-------------------------------------------------------------------------
  Accumulated benefit obligation          $(1,005,000)       $(1,095,000)
 Fair value of plan assets, invested
  primarily in S&P 500 common
  stocks, equity and fixed income
  mutual funds, and U.S. Government
  and listed corporate obligations            365,000            458,000
-------------------------------------------------------------------------
 Plan assets less than accumulated
  postretirement health care
  obligation                              $  (640,000)       $  (637,000)
 Unrecognized transition obligation           588,000            559,000
 Unrecognized net gain                             --             (9,000)
-------------------------------------------------------------------------
 Accrued liability for
  postretirement health care              $   (52,000)       $   (87,000)
-------------------------------------------------------------------------

For 1993, different health care cost trends are used for pre- Medicare and post-Medicare expenses. Pre-Medicare trend rates are 14.5% for 1993 grading down in 0.5% annual increments to 5%. Post- Medicare trend rates are 12% for 1993 grading down in 0.5% annual increments to 5%. The effect of a 1% increase in the assumed health care cost trend rates for each future year would increase the

45

accumulated postretirement health care obligation at January 1, 1993 by approximately $184 million and increase the aggregate of the service and interest cost components of plan costs by approximately $27 million for the year ended December 31, 1993. The annual discount rate used was 7.5% and the annual long-term rate of return on plan assets was 9.5%, or 9.1% after including income tax effects.
The components of postretirement health care costs, portions of which were recorded as components of construction costs, for 1993 were as follows:

 (thousands of dollars)                               1993
 -----------------------------------------------  --------
 Service cost                                     $ 45,000
 Interest cost on accumulated benefit obligation    74,000
 Actual return on plan assets                      (42,000)
 Amortization of transition obligation              29,000
 Other net deferral                                 10,000
-----------------------------------------------------------
                                                  $116,000
-----------------------------------------------------------


14 Income Taxes

The components of the net deferred income tax liability at January 1, 1993 and December 31, 1993 are as follows:

                                                January 1,  December 31,
 (thousands of dollars)                               1993          1993
 ---------------------------------------------  ----------  ------------
 Deferred tax liabilities:
  Accelerated cost recovery and liberalized
   depreciation, net of removal costs           $2,831,103    $3,095,855
  Overheads capitalized                            145,951       286,287
  Repair allowance                                 231,647       210,302
  Regulatory assets recoverable through future
   rates                                         1,545,643     1,729,890
 Deferred tax assets:
  Postretirement benefits                         (101,086)     (134,590)
  Unbilled revenues                                (91,410)      (98,164)
  Loss carryforward                                     --      (175,197)
  Alternative minimum tax                         (111,961)     (137,328)
  Unamortized investment tax credits to be
   settled through future rates                   (487,184)     (490,047)
  Other regulatory liabilities to be settled
   through future rates                            (89,490)     (102,383)
  Other--net                                       (51,753)      (80,751)
-------------------------------------------------------------------------
 Net deferred income tax liability              $3,821,460    $4,103,874
-------------------------------------------------------------------------

The $282 million increase in the net deferred income tax liability from January 1, 1993 to December 31, 1993 is comprised of $114 million deferred income tax expense and a $168 million increase in regulatory assets net of regulatory liabilities pertaining to income taxes for the period.
For the $282 million increase in the net deferred income tax liability from January 1, 1993 to December 31, 1993, approximately $185 million resulted from an increase in the federal statutory corporate income tax rate from 34% to 35% effective January 1, 1993, and from the elimination of a scheduled reduction in a component of the statutory Illinois income tax rate which was to have declined to 4.4% from 4.8%, effective July 1, 1993. The $185 million net increase resulted from recording an increase to regulatory assets of approximately $224 million and an increase to regulatory liabilities of approximately $39 million. See "Taxes" and "Regulatory Assets" under the subcaption "Results of Operations," in "Management's Discussion and Analysis of Financial Condition and Results of Operations."

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The components of net income tax expense charged to continuing operations are as follows:

 (thousands of dollars)                      1993      1992      1991
 --------------------------------------  --------  --------  --------
 Electric operating income:
   Current income taxes                  $(27,553) $161,388  $289,437
   Deferred income taxes                  122,804   142,895   162,037
   Investment tax credits deferred--net   (29,424)  (32,506)  (32,054)
 Other (income) and deductions            (30,753)   (6,214)  (65,274)
----------------------------------------------------------------------
 Net income taxes charged to continuing
  operations                             $ 35,074  $265,563  $354,146
----------------------------------------------------------------------

Provisions for current and deferred federal and state income taxes and amortization of investment tax credits resulted in the following effective income tax rates for the years 1993, 1992 and 1991:

                                         1993      1992      1991
 ----------------------------------  --------  --------  --------
 Pre-tax book income (in thousands)  $137,776  $779,544  $449,033
 Effective income tax rate               25.5%     34.1%     78.9%
------------------------------------------------------------------

The principal differences between these rates and the federal statutory corporate income tax rate of 35% for 1993 and 34% for 1992 and 1991 were as follows:

                                                     1993  1992  1991
 -------------------------------------------------  -----  ----  ----
 Federal statutory corporate income tax rate         35.0% 34.0% 34.0%
 Equity component of AFUDC which was excluded from
  taxable income                                     (5.2) (0.9) (1.4)
 Amortization of investment tax credits             (21.4) (3.4) (7.2)
 State income tax, net of federal income tax          9.5   5.6  11.7
 Disallowed plant costs                                --    --  34.3
 Differences between book and tax accounting
  primarily for property related deductions           1.5    --   5.5
 Other--net                                           6.1  (1.2)  2.0
----------------------------------------------------------------------
   Effective income tax rate                         25.5% 34.1% 78.9%
----------------------------------------------------------------------

The Company has recorded current federal income tax liabilities that include excess amounts of alternative minimum tax (AMT) over the regular federal income tax, which amounts were also recorded as decreases to deferred federal income taxes. As shown in the first table, the cumulative excess amounts of AMT so recorded in the amount of approximately $137 million as of December 31, 1993 can be carried forward indefinitely as a credit against future years' regular federal income tax liabilities. In 1993, the Company recorded a loss for income tax purposes which may be carried forward through 2008. It is currently expected that the income tax effect of the loss carryforward in the amount of $175 million, as shown in the first table, will be utilized by the expiration date.
The Company adopted SFAS No. 109, effective January 1, 1993. SFAS No. 109 requires an asset and liability approach to accounting for income taxes which replaces the deferred method formerly used. Under the asset and liability approach, the deferred income tax liability represents the income tax effect of temporary differences between financial accounting and income tax bases of assets and liabilities and is determined at the presently enacted income tax rates. The SFAS No. 109 adjustments to the Company's deferred income tax liability related to utility operations represents income taxes recoverable or returnable through future rates and have been recorded as regulatory assets and regulatory liabilities on the balance sheet. The cumulative effect of the change in the method of accounting for income taxes resulted in an increase to net income of $9.7 million or $0.05 per common share, due primarily to the reduction of deferred income taxes on nonregulated activities (primarily nonconsolidated subsidiaries) accrued in prior years at income tax rates in excess of the presently enacted income tax rates. The effect

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of the implementation entry on regulated activities was to record regulatory assets of $1,546 million primarily related to the equity component of AFUDC which was previously recorded on an after-tax basis, the borrowed funds component of AFUDC which was previously recorded net of tax and other temporary differences for which the related tax effects were not previously recorded; regulatory liabilities of $577 million primarily related to recognition of the deferred income tax effects of unamortized investment tax credits and to the changes in prior years' income tax rates; and a net increase to the deferred income tax liability of $969 million.
For comparability purposes in presentation, Deferred Income Taxes shown on the Consolidated Balance Sheets as of December 31, 1992 were reclassified from a valuation reserve deducted from Utility Plant to Current Assets and to Deferred Credits and Other Noncurrent Liabilities, consistent with the presentation as of December 31, 1993 required by the new accounting standard.


15 Taxes, Except Income Taxes

Provisions for taxes, except income taxes, for the years 1993, 1992 and 1991 were as follows:

 (thousands of dollars)                1993     1992     1991
 --------------------------------  -------- -------- --------
 Illinois public utility revenue   $199,498 $204,004 $218,137
 Illinois invested capital          111,126  107,207  111,872
 Municipal utility gross receipts   107,232  129,250  128,302
 Real estate                        162,560  162,151  148,356
 Municipal compensation              56,878   73,323   74,218
 Other--net                          64,619   67,974   61,685
-------------------------------------------------------------
                                   $701,913 $743,909 $742,570
-------------------------------------------------------------


16 Lease Obligations

On November 23, 1993, the Company consolidated its nuclear fuel lease arrangements into a new arrangement. Under the new arrangement, the Company may sell and lease back nuclear fuel from a lessor who may borrow an aggregate of $700 million (consisting of $300 million of commercial paper or bank borrowings and $400 million of intermediate term notes) to finance the transactions. The commercial paper/bank borrowing portion currently will expire on November 23, 1996, but the Company plans to ask for an extension of the expiration date. At December 31, 1993, the Company's obligation to the lessor for leased nuclear fuel amounted to $516 million. The Company has agreed to make lease payments which cover the amortization of the nuclear fuel used in the Company's reactors plus the lessor's related financing costs. The Company has an obligation for spent nuclear fuel disposal costs of leased nuclear fuel.
Future minimum rental payments, net of executory costs, at December 31, 1993 for capital leases, are estimated to aggregate $574 million, including $224 million in 1994, $146 million in 1995, $97 million in 1996, $61 million in 1997, $31 million in 1998 and $15 million in 1999-2000. The estimated interest component of such rental payments aggregates $53 million. The estimated portions of obligations due within one year under capital leases are included in current liabilities and approximated $166 million and $178 million at December 31, 1993 and 1992, respectively.
The Company has entered into an operating lease for new aluminum coalporter rail cars. The lease covers only the cost of the rail cars, thereby not including any operating, maintenance or other related costs. Future minimum rental payments at December 31, 1993 for this operating lease are estimated to aggregate $108 million, including $2 million in 1994, $5 million in 1995, $5 million in 1996, $5 million in 1997, $5 million in 1998 and $86 million in 1999-2013.

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17 Investments in Uranium- and Coal-Related Properties

At December 31, 1993, the Company and its subsidiaries had investments of approximately $134 million in uranium-related properties, equipment and activities and approximately $517 million in coal reserves. Production of uranium from all of the uranium properties has been deferred due to depressed market prices for uranium. The Company currently expects ultimately to recover the cost of the uranium properties in all material respects in relation to the Company's financial position and its results of operations, but doing so depends on substantially improved market conditions. However, the Company continues to evaluate its ability ultimately to recover the cost of its uranium properties. In prior years, the Company's commitments for the purchase of coal under long-term contracts exceeded its requirements. Rather than take all the coal it was required to take, the Company agreed to purchase the coal in place in the form of coal reserves. The Company has been allowed to recover from its customers the costs of the coal reserves through its fuel adjustment clause as the coal is used for the generation of electricity. However, the Company is not earning a return on the expenditures for coal reserves prior to the coal reserves being used for the generation of electricity by including the coal reserves in rate base. See "Management's Discussion and Analysis of Financial Condition and Results of Operations," subcaptions "Liquidity and Capital Resources" and "Results of Operations," for information concerning coal commitments and the Company's fuel supply, respectively. See Note 19 for additional information concerning the Company's coal commitments.
During 1989 and 1991, actions were brought in federal and state courts in Colorado against the Company and its subsidiary, Cotter Corporation (Cotter), alleging that Cotter has permitted radioactive and other hazardous material to be released from its mill into areas owned or occupied by the plaintiffs resulting in property damage and potential adverse health effects. The plaintiffs seek from Cotter and the Company unspecified compensatory, exemplary and medical monitoring fund damages, unspecified response costs under the Comprehensive Environmental Response, Compensation and Liability Act of 1980, and temporary and permanent injunctive relief. Although the cases will necessarily involve the resolution of numerous contested issues of fact and law, the Company's determination is that these actions will not have a material adverse impact on the Company's financial statements.


18 Joint Plant Ownership

The Company has a 75% undivided ownership interest in the Quad-Cities nuclear generating station. Further, the Company is responsible for 75% of all costs which are charged to appropriate investment, operation or maintenance accounts and provides its own financing. At December 31, 1993, for its share of ownership in the station, the Company had an investment of $533 million in production and transmission plant in service (before reduction of $159 million for the related accumulated provision for depreciation) and $53 million in construction work in progress.


19 Commitments, Contingent Liabilities and the Construction Program

Purchase commitments, principally related to construction and nuclear fuel, approximated $1,187 million at December 31, 1993. In addition, the Company has substantial commitments for the purchase of coal under long-term contracts. The Company's coal costs are high compared to those of other utilities. The Company's western coal contracts and its rail contracts for delivery of the western coal were renegotiated during 1992 effective as of January 1, 1993, to provide, among other things, for significant reductions in the delivered price of the coal over the duration of the contracts. However, the

49

renegotiated contracts provide for the purchase of certain coal at prices substantially above currently prevailing market prices and the Company has significant purchase commitments under its contracts. See "Management's Discussion and Analysis of Financial Condition and Results of Operations," subcaption "Liquidity and Capital Resources," for additional information regarding the Company's purchase commitments.
The Company is a member of Nuclear Mutual Limited (NML), established to provide insurance coverage against property damage to members' nuclear generating facilities. The members are subject to a retrospective premium adjustment in the event losses exceed accumulated reserve funds. Capital has been accumulated in the reserve funds of NML to the extent that the Company would have no exposure in the event of a single incident. However, the Company could be subject to a maximum assessment of approximately $70 million in any policy year, in the event losses exceed accumulated reserve funds.

If the Company had terminated its insurance coverages with NML as of December 31, 1993, it would have a contingent right to receive approximately $120 million, payable over a twenty-year period commencing in 1996. Any unpaid amounts, however, are subject to forfeiture in the event that NML's aggregate losses in any subsequent two year period exceed $300 million or fifty percent of its surplus. If any such asset were to be recorded, the Company expects that a corresponding regulatory liability would also be recorded.
The Company also is a member of Nuclear Electric Insurance Limited (NEIL), which provides insurance coverage against the cost of replacement power obtained during certain prolonged accidental outages of nuclear generating units and coverage for property losses in excess of $500 million occurring at nuclear stations. All companies insured with NEIL are subject to retrospective premium adjustments if losses exceed accumulated reserve funds. Capital has been accumulated in the reserve funds of NEIL to the extent that the Company would have no exposure in the event of a single incident under the replacement power coverage and the property damage coverage. However, the Company could be subject to maximum assessments, in any policy year, of approximately $27 million and $87 million in the event losses exceed accumulated reserve funds under the replacement power and property damage coverages, respectively.
The NRC's indemnity for public liability coverage under the Price- Anderson Act is supported by a mandatory industry-wide program under which owners of nuclear generating facilities could be assessed in the event of nuclear incidents. Based on the number of nuclear reactors with operating licenses, the Company would currently be subject to a maximum assessment of $991 million in the event of an incident, limited to a maximum of $125 million in any calendar year. The current maximum assessment was effective August 20, 1993 and represents an increase of $164 million over the previous maximum assessment of $827 million. The Act requires that the assessment program be adjusted for inflation every five years, and 1993 was an adjustment year.
In addition, the Company participates in the American Nuclear Insurers and Mutual Atomic Energy Liability Underwriters Master Worker Program which provides coverage for worker tort claims filed for bodily injury caused by the nuclear energy hazard. The coverage applies to workers whose "nuclear related employment" began after January 1, 1988. The Company would currently be subject to a maximum assessment of approximately $37 million in the event losses exceed accumulated reserve funds.
See "Management's Discussion and Analysis of Financial Condition and Results of Operations," subcaption "Liquidity and Capital Resources," for information relating to the Company's construction program and rates and financial condition.
Shareholder derivative lawsuits were filed on October 1, 1992 and on April 14, 1993 in the Circuit Court against current and former directors of the Company alleging that they breached their fiduciary duty and duty of care to the Company in connection with the management of the activities associated with the construction of the Company's four most recently completed nuclear generating units. The lawsuits sought restitution to the Company by the defendants for unquantified and undefined losses and costs alleged to have been incurred by the Company. Both lawsuits were dismissed by the Circuit Court; however, appeals are pending before the Illinois Appellate Court.

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The Company is involved in administrative and legal proceedings concerning air quality, water quality and other matters. The outcome of these proceedings may require increases in the Company's future construction expenditures and operating expenses. The Company and its subsidiaries are or are likely to become parties to proceedings initiated by the United States Environmental Protection Agency, state agencies and/or other responsible parties under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) with respect to a number of sites, including manufactured gas plant (MGP) sites, or may voluntarily undertake to investigate and remediate sites for which they may be liable under CERCLA. While there is a possibility that in the aggregate the cost of MGP site investigation and remediation will be substantial over time, the Company is not able to determine the most probable liability for MGPs. In accordance with accounting standards, the Company recorded a provision of $25 million in 1991 which reflects the low end of the range of its estimate of the liability associated with former MGPs. In 1993, the Company recorded a provision of $5 million which reflects the low end of the range of its estimate of the liability associated with cleanup costs of remediation sites other than former MGP sites. The Company presently estimates that its costs of investigating and remediating these other sites pursuant to CERCLA and state environmental laws will not in the aggregate be material to the business or operations of the Company. These cost estimates are based on currently available information regarding the responsible parties likely to share in the costs of responding to site contamination, the extent of contamination at sites for which the investigation has not yet been completed and the cleanup levels to which sites are expected to have to be remediated.


20 Subsequent Events

On January 25, 1994, the Company announced the closing of the sale of $66 million of Pollution Control Revenue Refunding Bonds issued through the Illinois Development Finance Authority.
On January 25, 1994, the Company announced that the following Illinois Environmental Facilities Financing Authority Pollution Control Revenue Bonds will be redeemed: on March 11, 1994, all $50 million of the outstanding Series 1979 Bonds (consisting of $10 million of 8 3/8% bonds due November 1, 2004 and $40 million of 8 1/2% bonds due November 1, 2009), and on April 1, 1994, all of the outstanding Series 1983 Bonds, consisting of $16 million of 9 3/4% bonds due April 1, 2013.


21 Quarterly Financial Information

                                                             Net         Average Earnings
                                  Electric                Income       Number of   (Loss)
                        Electric Operating        Net  (Loss) on          Common      Per
                       Operating    Income     Income     Common          Shares   Common
 Three Months Ended     Revenues    (Loss)     (Loss)      Stock     Outstanding    Share
 -------------------  ---------- ---------  ---------  ---------     ----------- --------
 (thousands except
  per share data)
  March 31, 1992      $1,422,557 $ 265,806  $  67,254  $  49,303(a)      212,713   $ 0.23
  June 30, 1992       $1,431,749 $ 271,705  $ 105,825  $  87,919(a)      212,860   $ 0.41
  September 30, 1992  $1,708,880 $ 398,869  $ 235,865  $ 218,151         212,973   $ 1.02
  December 31, 1992   $1,463,135 $ 260,523  $ 105,037  $  88,069         213,170   $ 0.41

  March 31, 1993      $1,483,385 $ 240,840  $  77,212  $  60,575         213,337   $ 0.28
  June 30, 1993       $1,430,547 $ 237,223  $  75,094  $  58,051         213,466   $ 0.27
  September 30, 1993  $1,872,448 $ 456,227  $ 287,123  $ 270,558         213,550   $ 1.27
  December 31, 1993   $  474,060 $(530,475) $(326,989) $(342,796)(b)     213,680   $(1.60)
------------------------------------------------------------------------------------------

(a) See "Earnings per Common Share" under the subcaption "Results of Operations," in "Management's Discussion and Analysis of Financial Condition and Results of Operations" for information concerning the reduction to net income recorded in 1992 which reflected a provision for additional refunds and interest related to the 1985 ICC rate order.
(b) See Note 2 for information concerning the Rate Matters Settlement, which lowered the level of the Company's rates and provides for substantial customer refunds, and the Fuel Matters Settlement, which provides for payments to customers.

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