Table of Contents

 
 
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
(Mark One)
     
þ   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE QUARTERLY PERIOD ENDED September 30, 2006
OR
     
o   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE TRANSITION PERIOD FROM                      TO                     
             
    Registrant, Address of   I.R.S. Employer    
    Principal Executive Offices   Identification   State of
Commission File Number   and Telephone Number   Number   Incorporation
 
           
1-08788
  SIERRA PACIFIC RESOURCES   88-0198358   Nevada
 
  P.O. Box 10100        
 
  (6100 Neil Road)        
 
  Reno, Nevada 89520-0400 (89511)        
 
  (775) 834-4011        
 
           
2-28348
  NEVADA POWER COMPANY   88-0420104   Nevada
 
  6226 West Sahara Avenue        
 
  Las Vegas, Nevada 89146        
 
  (702) 367-5000        
 
           
0-00508
  SIERRA PACIFIC POWER COMPANY   88-0044418   Nevada
 
  P.O. Box 10100        
 
  (6100 Neil Road)        
 
  Reno, Nevada 89520-0400 (89511)        
 
  (775) 834-4011        
Indicate by check mark whether registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes  þ No  o (Response applicable to all registrants)
Indicate by check mark whether any registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. (See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act).
                 
Sierra Pacific Resources:
  Large accelerated filer  þ   Accelerated filer  o   Non-accelerated filer  o    
Nevada Power Company:
  Large accelerated filer  o   Accelerated filer  o   Non-accelerated filer  þ    
Sierra Pacific Power Company:
  Large accelerated filer  o   Accelerated filer  o   Non-accelerated filer  þ    
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes  o No  þ (Response applicable to all registrants)
Indicate the number of shares outstanding of each of the issuer’s classes of Common Stock, as of the latest practicable date.
     
Class   Outstanding at November 1, 2006
Common Stock, $1.00 par value
of Sierra Pacific Resources
  220,936,987 Shares
Sierra Pacific Resources is the sole holder of the 1,000 shares of outstanding Common Stock, $1.00 stated value, of Nevada Power Company.
Sierra Pacific Resources is the sole holder of the 1,000 shares of outstanding Common Stock, $3.75 stated value, of Sierra Pacific Power Company.
This combined Quarterly Report on Form 10-Q is separately filed by Sierra Pacific Resources, Nevada Power Company and Sierra Pacific Power Company. Information contained in this document relating to Nevada Power Company is filed by Sierra Pacific Resources and separately by Nevada Power Company on its own behalf. Nevada Power Company makes no representation as to information relating to Sierra Pacific Resources or its subsidiaries, except as it may relate to Nevada Power Company. Information contained in this document relating to Sierra Pacific Power Company is filed by Sierra Pacific Resources and separately by Sierra Pacific Power Company on its own behalf. Sierra Pacific Power Company makes no representation as to information relating to Sierra Pacific Resources or its subsidiaries, except as it may relate to Sierra Pacific Power Company.
 
 

 


 

SIERRA PACIFIC RESOURCES
NEVADA POWER COMPANY
SIERRA PACIFIC POWER COMPANY
QUARTERLY REPORTS ON FORM 10-Q
FOR THE QUARTER ENDED SEPTEMBER 30, 2006
CONTENTS
         
       
Sierra Pacific Resources —
       
    3  
    4  
    5  
    6  
Nevada Power Company —
       
    8  
    9  
    10  
    11  
Sierra Pacific Power Company —
       
    12  
    13  
    14  
    15  
    16  
    33  
    38  
    41  
    50  
    64  
    65  
    65  
    66  
    68  
    68  
    69  
    70  
  Ex-3.1 Restated Articles of Incorporation of Sierra Pacific Power Company
  Ex-10.1 Financing Agreement, Clark County, dated August 1, 2006
  Ex-10.2 Financing Agreement, Coconino County, dated August 1, 2006 (Series 2006A)
  Ex-10.3 Financing Agreement, Coconino County, dated August 1, 2006 (Series 2006B)
  Ex-31.1 Section 302 Certification of CEO
  Ex-31.2 Section 302 Certification of CEO
  Ex-31.3 Section 302 Certification of CEO
  Ex-31.4 Section 302 Certification of CFO
  Ex-31.5 Section 302 Certification of CFO
  Ex-31.6 Section 302 Certification of CFO
  Ex-32.1 Section 906 Certification of CEO
  Ex-32.2 Section 906 Certification of CEO
  Ex-32.3 Section 906 Certification of CEO
  Ex-32.4 Section 906 Certification of CFO
  Ex-32.5 Section 906 Certification of CFO
  Ex-32.6 Section 906 Certification of CFO

 


Table of Contents

SIERRA PACIFIC RESOURCES
CONSOLIDATED BALANCE SHEETS
(Dollars in Thousands)
(Unaudited)
                 
    September 30,     December 31,  
    2006     2005  
ASSETS
               
Utility Plant at Original Cost:
               
Plant in service
  $ 7,850,176     $ 6,801,916  
Less accumulated provision for depreciation
    2,327,923       2,169,316  
 
           
 
    5,522,253       4,632,600  
Construction work-in-progress
    471,791       765,005  
 
           
 
    5,994,044       5,397,605  
 
           
Investments and other property, net
    54,758       62,771  
 
           
Current Assets:
               
Cash and cash equivalents
    251,397       172,682  
Restricted cash and investments
          67,245  
Accounts receivable less allowance for uncollectible accounts:
               
2006-$40,997; 2005-$36,021
    499,252       413,171  
Deferred energy costs — electric (Note 1)
    153,504       253,697  
Deferred energy costs — gas (Note 1)
          5,825  
Materials, supplies and fuel, at average cost
    99,096       88,445  
Risk management assets (Note 5)
    28,257       50,226  
Deposits and prepayments for energy
    13,899       45,054  
Other
    21,300       26,544  
 
           
 
    1,066,705       1,122,889  
 
           
Deferred Charges and Other Assets:
               
Goodwill (Note 8)
    3,989       22,877  
Deferred energy costs — electric (Note 1)
    463,189       255,312  
Deferred energy costs — gas (Note 1)
          845  
Regulatory tax asset
    266,347       249,261  
Other regulatory assets
    642,918       568,145  
Risk management assets (Note 5)
    159        
Risk management regulatory assets — net (Note 5)
    109,664        
Unamortized debt issuance costs
    66,990       63,395  
Other
    133,645       107,330  
 
           
 
    1,686,901       1,267,165  
 
           
Assets of Discontinued Operations
    20,078       20,116  
 
           
TOTAL ASSETS
  $ 8,822,486     $ 7,870,546  
 
           
CAPITALIZATION AND LIABILITIES
               
Capitalization:
               
Common shareholders’ equity
  $ 2,593,013     $ 2,060,154  
Preferred stock
          50,000  
Long-term debt
    4,162,341       3,817,122  
 
           
 
    6,755,354       5,927,276  
 
           
Current Liabilities:
               
Current maturities of long-term debt
    41,051       58,909  
Accounts payable
    238,037       252,900  
Accrued interest
    81,005       58,585  
Dividends declared
    74       1,043  
Accrued salaries and benefits
    37,412       32,186  
Current income taxes payable
    2,068       3,159  
Deferred income taxes
    31,256       129,041  
Risk management liabilities (Note 5)
    117,384       16,580  
Accrued taxes
    8,310       6,540  
Contract termination liabilities
          129,000  
Other current liabilities
    60,212       56,724  
 
           
 
    616,809       744,667  
 
           
Commitments and Contingencies (Note 6)
               
 
               
Deferred Credits and Other Liabilities:
               
Deferred income taxes
    695,704       451,924  
Deferred investment tax credit
    36,090       38,625  
Regulatory tax liability
    35,185       38,224  
Customer advances for construction
    189,465       170,061  
Accrued retirement benefits
    76,617       71,810  
Risk management regulatory liability — net (Note 5)
          15,605  
Regulatory liabilities
    286,790       284,438  
Other
    120,272       117,716  
 
           
 
    1,440,123       1,188,403  
 
           
Liabilities of Discontinued Operations
    10,200       10,200  
 
           
TOTAL CAPITALIZATION AND LIABILITIES
  $ 8,822,486     $ 7,870,546  
 
           
The accompanying notes are an integral part of the financial statements.

3


Table of Contents

SIERRA PACIFIC RESOURCES
CONSOLIDATED STATEMENTS OF OPERATIONS
(Dollars in Thousands, Except Per Share Amounts)
(Unaudited)
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2006     2005     2006     2005  
OPERATING REVENUES:
                               
Electric
  $ 1,060,574     $ 943,290     $ 2,468,512     $ 2,193,017  
Gas
    21,106       15,574       141,128       115,248  
Other
    287       262       1,302       873  
 
                       
 
    1,081,967       959,126       2,610,942       2,309,138  
 
                       
OPERATING EXPENSES:
                               
Operation:
                               
Purchased power
    396,133       504,823       906,578       1,023,594  
Fuel for power generation
    256,688       153,721       613,965       371,561  
Gas purchased for resale
    13,492       12,906       105,240       89,410  
Deferral of energy costs — electric — net
    17,700       (94,313 )     74,721       (40,556 )
Deferral of energy costs — gas — net
    1,130       (2,001 )     7,214       (997 )
Reinstatement of deferred energy costs (Note 6)
    (178,825 )           (178,825 )      
Other
    91,232       96,850       264,501       271,639  
Maintenance
    23,784       16,937       69,140       64,040  
Depreciation and amortization
    56,029       53,862       170,112       159,949  
Taxes:
                               
Income taxes
    108,994       42,171       107,431       32,658  
Other than income
    11,802       11,286       36,740       35,115  
 
                       
 
    798,159       796,242       2,176,817       2,006,413  
 
                       
OPERATING INCOME
    283,808       162,884       434,125       302,725  
 
                               
OTHER INCOME (EXPENSE):
                               
Allowance for other funds used during construction
    3,343       5,548       13,649       14,246  
Interest accrued on deferred energy
    6,219       7,342       22,573       19,359  
Early debt conversion fees
          (54,000 )           (54,000 )
Carrying charge for Lenzie (Note 1)
    10,040             23,206        
Other income
    9,430       9,452       28,027       28,795  
Other expense
    (4,534 )     (3,430 )     (13,968 )     (11,732 )
Income taxes
    (8,262 )     12,132       (25,205 )     1,200  
 
                       
 
    16,236       (22,956 )     48,282       (2,132 )
 
                       
Total Income Before Interest Charges
    300,044       139,928       482,407       300,593  
 
                               
INTEREST CHARGES:
                               
Long-term debt
    74,444       75,820       225,106       232,826  
Other
    6,199       8,733       16,433       21,414  
Allowance for borrowed funds used during construction
    (2,860 )     (6,752 )     (12,869 )     (17,283 )
 
                       
 
    77,783       77,801       228,670       236,957  
 
                       
 
                               
INCOME FROM CONTINUING OPERATIONS
    222,261       62,127       253,737       63,636  
 
                               
DISCONTINUED OPERATIONS:
                               
Loss from discontinued operations (net of income tax benefits of $8, $51, $39 and $48 respectively)
    (15 )     (134 )     (72 )     (128 )
 
                       
NET INCOME
    222,246       61,993       253,665       63,508  
Preferred stock dividend requirements of subsidiary and premium on redemption
          975       2,341       2,925  
 
                       
EARNINGS APPLICABLE TO COMMON STOCK
  $ 222,246     $ 61,018     $ 251,324     $ 60,583  
 
                       
 
                               
Amount per share basic and diluted — (Note 7)
                               
Income from continuing operations
  $ 1.05     $ 0.34     $ 1.24     $ 0.35  
Earnings applicable to common stock
  $ 1.05     $ 0.33     $ 1.23     $ 0.33  
 
                               
Weighted Average Shares of Common Stock Outstanding — basic
    211,143,616       183,377,256       204,303,110       183,216,650  
 
                       
Weighted Average Shares of Common Stock Outstanding — diluted
    211,641,821       183,752,200       204,744,823       183,607,923  
 
                       
The accompanying notes are an integral part of the financial statements.

4


Table of Contents

SIERRA PACIFIC RESOURCES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)
(Unaudited)
                 
    Nine Months Ended  
    September 30,  
    2006     2005  
CASH FLOWS FROM (USED BY) OPERATING ACTIVITIES:
               
Net Income
  $ 253,665     $ 63,508  
Non-cash items included in net income:
               
Depreciation and amortization
    170,113       159,949  
Deferred taxes and deferred investment tax credit
    122,062       31,362  
AFUDC and capitalized interest
    (26,518 )     (31,529 )
Amortization of deferred energy costs — electric
    130,279       140,554  
Amortization of deferred energy costs — gas
    4,773       (486 )
Reinstatement of deferred energy costs
    (178,825 )      
Carrying charge on Lenzie plant
    (26,957 )      
Other non-cash
    (27,326 )     (33,018 )
Changes in certain assets and liabilities:
               
Accounts receivable
    (127,447 )     (88,718 )
Deferral of energy costs — electric
    (77,908 )     (179,917 )
Deferral of energy costs — gas
    1,897       (902 )
Deferral of energy costs — terminated suppliers
    2,309        
Materials, supplies and fuel
    (10,651 )     (5,797 )
Other current assets
    36,397       32,255  
Accounts payable
    (17,129 )     51,959  
Payment to terminating supplier
    (65,368 )      
Proceeds from claim on terminating supplier
    41,365        
Other current liabilities
    33,085       32,003  
Discontinued operations — operating activities
    38       169  
Change in net assets of discontinued operations
           
Risk Management assets and liabilities
    (2,654 )     3,606  
Other assets
    10,526       312  
Other liabilities
    (5,003 )     (4,111 )
 
           
Net Cash from Operating Activities
    240,723       171,199  
 
           
 
               
CASH FLOWS FROM (USED BY) INVESTING ACTIVITIES:
               
Additions to utility plant
    (769,080 )     (528,315 )
AFUDC and other charges to utility plant
    26,518       31,529  
Customer advances for construction
    19,402       20,640  
Contributions in aid of construction
    28,874       15,375  
 
           
Net cash used for utility plant
    (694,286 )     (460,771 )
Investments in subsidiaries and other property — net
    13,559       8,105  
 
           
Net Cash used by Investing Activities
    (680,727 )     (452,666 )
 
           
 
               
CASH FLOWS FROM (USED BY) FINANCING ACTIVITIES:
               
Increase in short-term borrowings
          240,000  
Change in restricted cash and investments
    3,612       22,964  
Proceeds from issuance of long-term debt
    2,181,753       275,000  
Retirement of long-term debt
    (1,894,875 )     (597,236 )
Redemption of preferred stock
    (51,366 )      
Sale of common stock, net of issuance cost
    281,539       250,366  
Dividends paid
    (1,944 )     (2,936 )
 
           
Net Cash from Financing Activities
    518,719       188,158  
 
           
 
               
Net Increase (decrease) in Cash and Cash Equivalents
    78,715       (93,309 )
Beginning Balance in Cash and Cash Equivalents
    172,682       266,328  
 
           
Ending Balance in Cash and Cash Equivalents
  $ 251,397     $ 173,019  
 
           
 
               
Supplemental Disclosures of Cash Flow Information:
               
Cash paid during period for:
               
Interest
  $ 227,418     $ 238,944  
Income taxes
  $ 4,726     $  
The accompanying notes are an integral part of the financial statements

5


Table of Contents

SIERRA PACIFIC RESOURCES
CONSOLIDATED STATEMENTS OF CAPITALIZATION
(Dollars in Thousands)
(Unaudited)
                 
    September 30,     December 31,  
    2006     2005  
Common Shareholder’s Equity:
               
Common stock, $1.00 par value, authorized 350 million; issued and outstanding 2006: 220,922,000 shares; issued and outstanding 2005: 200,792,000 shares
  $ 220,922     $ 200,792  
Other paid-in capital
    2,482,301       2,220,896  
Retained Deficit
    (104,563 )     (355,883 )
Accumulated other comprehensive loss
    (5,647 )     (5,651 )
 
           
Total Common Shareholder’s Equity
    2,593,013       2,060,154  
 
           
Preferred Stock of Subsidiaries:
               
Not subject to mandatory redemption; 2005: 2,000,000 shares outstanding; $25 stated value
               
SPPC Class A Series 1; $1.95 dividend
          50,000  
 
           
Long-Term Debt:
               
Secured Debt
               
First Mortgage Bonds
               
8.50% NPC Series Z due 2023
          35,000  
Debt Secured by First Mortgage Bonds
               
Revenue Bonds
               
Nevada Power Company
               
6.60% NPC Series 1992B due 2019
          39,500  
6.70% NPC Series 1992A due 2022
          105,000  
7.20% NPC Series 1992C due 2022
          78,000  
Sierra Pacific Power Company
               
6.35% SPPC Series 1992B due 2012
    1,000       1,000  
6.55% SPPC Series 1987 due 2013
    39,500       39,500  
6.30% SPPC Series 1987 due 2014
    45,000       45,000  
6.65% SPPC Series 1987 due 2017
    92,500       92,500  
6.55% SPPC Series 1990 due 2020
    20,000       20,000  
6.30% SPPC Series 1992A due 2022
    10,250       10,250  
5.90% SPPC Series 1993A due 2023
    9,800       9,800  
5.90% SPPC Series 1993B due 2023
    30,000       30,000  
6.70% SPPC Series 1992 due 2032
    21,200       21,200  
Medium Term Notes
               
Sierra Pacific Power Company
               
6.62% to 6.83% SPPC Series C due 2006
    20,000       50,000  
6.95% to 8.61% SPPC Series A due 2022
          110,000  
7.10% to 7.14% SPPC Series B due 2023
          58,000  
 
           
Subtotal
    289,250       744,750  
 
           
General and Refunding Mortgage Securities
               
Nevada Power Company
               
10.88% NPC Series E due 2009
    12,554       162,500  
8.25% NPC Series A due 2011
    350,000       350,000  
6.50% NPC Series I due 2012
    130,000       130,000  
9.00% NPC Series G due 2013
    227,500       227,500  
5.875% NPC Series L due 2015
    250,000       250,000  
5.95% NPC Series M due 2016
    210,000        
6.65% NPC Series N due 2036
    370,000        
6.50% NPC Series O due 2018
    325,000        
 
           
Subtotal
    1,875,054       1,120,000  
 
           
The accompanying notes are an integral part of the financial statements.
(Continued)

6


Table of Contents

SIERRA PACIFIC RESOURCES
CONSOLIDATED STATEMENTS OF CAPITALIZATION
(Dollars in Thousands)
(Unaudited)
                 
    September 30,     December 31,  
    2006     2005  
Sierra Pacific Power Company
               
8.00% SPPC Series A due 2008
    320,000       320,000  
6.25% SPPC Series H due 2012
    100,000       100,000  
6.00% SPPC Series M due 2016
    300,000        
 
           
Subtotal
    720,000       420,000  
 
           
Variable Rate Notes
               
NPC PCRB Series 2000B due 2009
    15,000       15,000  
NPC IDRB Series 2000A due 2020
    100,000       100,000  
NPC PCRB Series 2006 due 2036
    39,500        
NPC PCRB Series 2006A due 2032
    40,000        
NPC PCRB Series 2006B due 2039
    13,000        
 
           
Subtotal
    207,500       115,000  
 
           
Debt Secured by General and Refunding Mortgage Securities NPC Revolving Credit Facility
    50,000       150,000  
5.00% SPPC Series 2001 due 2036
    80,000       80,000  
 
           
Subtotal
    130,000       230,000  
 
           
Unsecured Debt
               
Revenue Bonds
               
Nevada Power Company
               
5.30% NPC Series 1995D due 2011
    14,000       14,000  
5.35% NPC Series 1995E due 2022
          13,000  
5.45% NPC Series 1995D due 2023
    6,300       6,300  
5.50% NPC Series 1995C due 2030
    44,000       44,000  
5.60% NPC Series 1995A due 2030
    76,750       76,750  
5.90% NPC Series 1995B due 2030
    85,000       85,000  
5.80% NPC Series 1997B due 2032
          20,000  
5.90% NPC Series 1997A due 2032
    52,285       52,285  
6.38% NPC Series 1996 due 2036
          20,000  
 
           
Subtotal
    278,335       331,335  
 
           
Other Notes
               
Sierra Pacific Resources
               
7.803% SPR Senior Notes due 2012
    99,142       99,142  
8.625% SPR Notes due 2014
    335,000       335,000  
6.75% SPR Senior Notes due 2017
    225,000       225,000  
 
           
Subtotal, excluding current portion
    659,142       659,142  
 
           
Unamortized bond premium and discount, net
    (12,058 )     (3,495 )
 
           
Nevada Power Company
               
8.2% Junior Subordinated Debentures of NPC, due 2037
          122,548  
7.75% Junior Subordinated Debentures of NPC, due 2038
          72,165  
 
           
Subtotal
          194,713  
 
           
Obligations under capital leases
    50,206       56,921  
Current maturities and sinking fund requirements
    (41,051 )     (58,909 )
Other, excluding current portion
    5,963       7,665  
 
           
Total Long-Term Debt
    4,162,341       3,817,122  
 
           
TOTAL CAPITALIZATION
  $ 6,755,354     $ 5,927,276  
 
           
The accompanying notes are an integral part of the financial statements.
(Concluded)

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Table of Contents

NEVADA POWER COMPANY
CONSOLIDATED BALANCE SHEETS
(Dollars in Thousands)
(Unaudited)
                 
    September 30,     December 31,  
    2006     2005  
ASSETS
               
Utility Plant at Original Cost:
               
Plant in service
  $ 5,076,001     $ 4,106,489  
Less accumulated provision for depreciation
    1,246,989       1,128,209  
 
           
 
    3,829,012       2,978,280  
Construction work-in-progress
    280,466       698,206  
 
           
 
    4,109,478       3,676,486  
 
           
 
               
Investments and other property, net
    23,137       29,249  
 
           
 
               
Current Assets:
               
Cash and cash equivalents
    46,069       98,681  
Restricted cash
          52,374  
Accounts receivable less allowance for uncollectible accounts:
               
2006-$34,490; 2005-$30,386
    357,591       232,086  
Accounts receivable, affiliated companies
    11,368       3,738  
Deferred energy costs — electric (Note 1)
    117,856       186,355  
Materials, supplies and fuel, at average cost
    58,172       46,835  
Risk management assets (Note 5)
    17,311       22,404  
Deposits and prepayments for energy
    7,145       16,303  
Other
    12,365       16,075  
 
           
 
    627,877       674,851  
 
           
Deferred Charges and Other Assets:
               
Deferred energy costs — electric (Note 1)
    407,779       214,587  
Regulatory tax asset
    154,461       155,304  
Other regulatory assets
    417,347       362,567  
Risk management regulatory assets — net (Note 5)
    69,823        
Unamortized debt issuance costs
    39,503       37,157  
Other
    52,554       23,720  
 
           
 
    1,141,467       793,335  
 
           
TOTAL ASSETS
  $ 5,901,959     $ 5,173,921  
 
           
CAPITALIZATION AND LIABILITIES
               
Capitalization:
               
Common shareholder’s equity
  $ 2,166,719     $ 1,762,089  
Long-term debt
    2,429,256       2,214,063  
 
           
 
    4,595,975       3,976,152  
 
           
Current Liabilities:
               
Current maturities of long-term debt
    18,651       6,509  
Accounts payable
    149,463       164,169  
Accrued interest
    46,848       33,031  
Dividends declared
    74       397  
Accrued salaries and benefits
    18,377       15,537  
Current income taxes payable
    2,068       3,159  
Intercompany Income taxes payable
    10,182        
Deferred income taxes
    7,019       57,392  
Risk management liabilities (Note 5)
    74,283       10,125  
Accrued taxes
    3,875       2,817  
Contract termination liabilities
          89,784  
Other current liabilities
    48,863       46,425  
 
           
 
    379,703       429,345  
 
           
Commitments and Contingencies (Note 6)
               
Deferred Credits and Other Liabilities:
               
Deferred income taxes
    518,614       362,973  
Deferred investment tax credit
    15,617       16,832  
Regulatory tax liability
    14,096       15,068  
Customer advances for construction
    111,970       98,056  
Accrued retirement benefits
    22,125       22,203  
Risk management regulatory liability — net (Note 5)
          590  
Regulatory liabilities
    165,618       173,527  
Other
    78,241       79,175  
 
           
 
    926,281       768,424  
 
           
 
               
TOTAL CAPITALIZATION AND LIABILITIES
  $ 5,901,959     $ 5,173,921  
 
           
The accompanying notes are an integral part of the financial statements.

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Table of Contents

NEVADA POWER COMPANY
CONSOLIDATED STATEMENTS OF OPERATIONS
(Dollars in Thousands)
(Unaudited)
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2006     2005     2006     2005  
OPERATING REVENUES:
                               
Electric
  $ 776,235     $ 675,181     $ 1,701,379     $ 1,480,699  
 
                               
OPERATING EXPENSES:
                               
Operation:
                               
Purchased power
    289,975       393,414       638,664       763,096  
Fuel for power generation
    183,622       86,282       425,138       195,134  
Deferral of energy costs-net
    19,960       (76,899 )     53,748       (32,965 )
Reinstatement of deferred energy costs (Note 6)
    (178,825 )           (178,825 )      
Other
    54,927       55,760       156,765       155,971  
Maintenance
    15,719       10,624       44,307       43,976  
Depreciation and amortization
    34,955       31,258       104,076       92,421  
Taxes:
                               
Income taxes
    103,853       42,092       103,617       40,054  
Other than income
    7,129       6,477       21,287       19,543  
 
                       
 
    531,315       549,008       1,368,777       1,277,230  
 
                       
OPERATING INCOME
    244,920       126,173       332,602       203,469  
 
                               
OTHER INCOME (EXPENSE):
                               
Allowance for other funds used during construction
    1,986       5,119       10,140       13,017  
Interest accrued on deferred energy
    4,786       5,557       17,695       14,298  
Carrying charge for Lenzie (Note 1)
    10,040             23,206        
Other income
    4,080       5,238       12,831       17,600  
Other expense
    (2,050 )     (1,608 )     (6,353 )     (5,001 )
Income taxes
    (6,735 )     (4,578 )     (19,785 )     (12,625 )
 
                       
 
    12,107       9,728       37,734       27,289  
 
                       
Total Income Before Interest Charges
    257,027       135,901       370,336       230,758  
 
                               
INTEREST CHARGES:
                               
Long-term debt
    43,355       38,587       132,285       121,729  
Other
    4,537       4,204       11,828       12,775  
Allowance for borrowed funds used during construction
    (1,978 )     (6,362 )     (10,050 )     (16,154 )
 
                       
 
    45,914       36,429       134,063       118,350  
 
                       
 
                               
NET INCOME
  $ 211,113     $ 99,472     $ 236,273     $ 112,408  
 
                       
The accompanying notes are an integral part of the financial statements.

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Table of Contents

NEVADA POWER COMPANY
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)
(Unaudited)
                 
    Nine Months Ended  
    September 30,  
    2006     2005  
CASH FLOWS FROM (USED BY) OPERATING ACTIVITIES:
               
Net Income
  $ 236,273     $ 112,408  
Non-cash items included in net loss:
               
Depreciation and amortization
    104,076       92,421  
Deferred taxes and deferred investment tax credit
    113,015       52,680  
AFUDC
    (20,190 )     (29,171 )
Amortization of deferred energy costs
    95,830       108,480  
Reinstatement of deferred energy costs
    (178,825 )      
Carrying charge on Lenzie plant
    (26,957 )      
Other non-cash
    (26,129 )     (22,201 )
Changes in certain assets and liabilities:
               
Accounts receivable
    (159,526 )     (110,556 )
Deferral of energy costs
    (59,765 )     (137,048 )
Deferral of energy costs — terminated suppliers
    1,607        
Materials, supplies and fuel
    (11,336 )     (1,070 )
Other current assets
    12,868       15,308  
Accounts payable
    (13,302 )     57,677  
Payment to terminating supplier
    (37,410 )      
Proceeds from claim on terminating supplier
    26,391        
Other current liabilities
    20,152       27,739  
Risk Management assets and liabilities
    (1,161 )     1,206  
Other assets
    10,205       312  
Other liabilities
    (7,977 )     (4,833 )
 
           
Net Cash from Operating Activities
    77,839       163,352  
 
           
 
               
CASH FLOWS FROM (USED BY) INVESTING ACTIVITIES:
               
Additions to utility plant
    (555,786 )     (435,413 )
AFUDC and other charges to utility plant
    20,190       29,171  
Customer advances for construction
    13,913       13,839  
Contributions in aid of construction
    19,673       6,971  
 
           
Net cash used for utility plant
    (502,010 )     (385,432 )
Investments in subsidiaries and other property — net
    6,351       1,921  
 
           
Net Cash used by Investing Activities
    (495,659 )     (383,511 )
 
           
 
               
CASH FLOWS FROM (USED BY) FINANCING ACTIVITIES:
               
Proceeds from issuance of long-term debt
    1,689,134       50,000  
Retirement of long-term debt
    (1,491,958 )     (212,007 )
Additional investment by parent company
    200,000       230,541  
Dividends paid
    (31,968 )     (27,098 )
 
           
Net Cash from Financing Activities
    365,208       41,436  
 
           
 
               
Net Decrease in Cash and Cash Equivalents
    (52,612 )     (178,723 )
Beginning Balance in Cash and Cash Equivalents
    98,681       243,323  
 
           
Ending Balance in Cash and Cash Equivalents
  $ 46,069     $ 64,600  
 
           
 
               
Supplemental Disclosures of Cash Flow Information:
               
Cash paid during period for:
               
Interest
  $ 136,072     $ 123,683  
Income taxes
  $ 4,714     $  
The accompanying notes are an integral part of the financial statements

10


Table of Contents

NEVADA POWER COMPANY
CONSOLIDATED STATEMENTS OF CAPITALIZATION
(Dollars in Thousands)
(Unaudited)
                 
    September 30,     December 31,  
    2006     2005  
Common Shareholder’s Equity:
               
Common stock, $1.00 par value, 1,000 shares authorized, issued and Outstanding
  $ 1     $ 1  
Other paid-in capital
    2,008,848       1,808,848  
Retained Earning (Deficit)
    161,210       (43,422 )
Accumulated other comprehensive loss
    (3,340 )     (3,338 )
 
           
Total Common Shareholder’s Equity
    2,166,719       1,762,089  
 
           
Long-Term Debt:
               
Secured Debt
               
First Mortgage Bonds
               
8.50% Series Z due 2023
          35,000  
Debt Secured by First Mortgage Bonds
               
Revenue Bonds
               
6.60% Series 1992B due 2019
          39,500  
6.70% Series 1992A due 2022
          105,000  
7.20% Series 1992C due 2022
          78,000  
 
           
Subtotal
          257,500  
 
           
General and Refunding Mortgage Securities
               
10.88% Series E due 2009
    12,554       162,500  
8.25% Series A due 2011
    350,000       350,000  
6.50% Series I due 2012
    130,000       130,000  
9.00% Series G due 2013
    227,500       227,500  
5.875% Series L due 2015
    250,000       250,000  
5.95% Series M due 2016
    210,000        
6.65% Series N due 2036
    370,000        
6.00% Series O due 2018
    325,000        
 
           
Subtotal
    1,875,054       1,120,000  
 
           
Variable Rate Notes
               
PCRB Series 2000B due 2009
    15,000       15,000  
IDRB Series 2000A due 2020
    100,000       100,000  
PCRB Series 2006 due 2036
    39,500        
PCRB Series 2006A due 2032
    40,000        
PCRB Series 2006B due 2039
    13,000        
 
           
Subtotal
    207,500       115,000  
 
           
Debt Secured by General and Refunding Mortgage Securities
               
 
           
Revolving Credit Facility
    50,000       150,000  
 
           
Unsecured Debt
               
Revenue Bonds
               
5.30% Series 1995D due 2011
    14,000       14,000  
5.35% Series 1995E due 2022
          13,000  
5.45% Series 1995D due 2023
    6,300       6,300  
5.50% Series 1995C due 2030
    44,000       44,000  
5.60% Series 1995A due 2030
    76,750       76,750  
5.90% Series 1995B due 2030
    85,000       85,000  
5.80% Series 1997B due 2032
          20,000  
5.90% Series 1997A due 2032
    52,285       52,285  
6.38% Series 1996 due 2036
          20,000  
 
           
Subtotal
    278,335       331,335  
 
           
Unamortized bond premium and discount, net
    (13,222 )     (4,942 )
 
           
8.2% Junior Subordinated Debentures due 2037
          122,548  
7.75% Junior Subordinated Debentures due 2038
          72,165  
 
           
Subtotal
          194,713  
 
           
Obligations under capital leases
    50,206       56,921  
Current maturities and sinking fund requirements
    (18,651 )     (6,509 )
Other, excluding current portion
    34       45  
 
           
Total Long-Term Debt
    2,429,256       2,214,063  
 
           
TOTAL CAPITALIZATION
  $ 4,595,975     $ 3,976,152  
 
           
The accompanying notes are an integral part of the financial statements

11


Table of Contents

SIERRA PACIFIC POWER COMPANY
CONSOLIDATED BALANCE SHEETS
(Dollars in Thousands)
(Unaudited)
                 
    September 30,     December 31,  
    2006     2005  
ASSETS
               
Utility Plant at Original Cost:
               
Plant in service
  $ 2,774,175     $ 2,695,427  
Less accumulated provision for depreciation
    1,080,934       1,041,107  
 
           
 
    1,693,241       1,654,320  
Construction work-in-progress
    191,325       66,799  
 
           
 
    1,884,566       1,721,119  
 
           
           
Investments and other property, net
    802       842  
 
           
           
Current Assets:
               
Cash and cash equivalents
    83,448       38,153  
Restricted cash
          14,871  
Accounts receivable less allowance for uncollectible accounts:
               
2006-$6,507; 2005-$5,634
    141,375       180,973  
Accounts receivable, affiliated companies
          40,278  
Deferred energy costs — electric (Note 1)
    35,648       67,342  
Deferred energy costs — gas (Note 1)
          5,825  
Materials, supplies and fuel, at average cost
    40,912       41,608  
Risk management assets (Note 5)
    10,946       27,822  
Deposits and prepayments for energy
    6,754       28,751  
Other
    8,712       9,547  
 
           
 
    327,795       455,170  
 
           
Deferred Charges and Other Assets:
               
Deferred energy costs — electric (Note 1)
    55,410       40,725  
Deferred energy costs — gas (Note 1)
          845  
Regulatory tax asset
    111,886       93,957  
Other regulatory assets
    225,571       205,578  
Risk management assets (Note 5)
    159        
Risk management regulatory assets — net (Note 5)
    39,841        
Unamortized debt issuance costs
    14,884       12,693  
Other
    13,557       15,372  
 
           
 
    461,308       369,170  
 
           
TOTAL ASSETS
  $ 2,674,471     $ 2,546,301  
 
           
CAPITALIZATION AND LIABILITIES
               
Capitalization:
               
Common shareholder’s equity
  $ 770,640     $ 727,777  
Preferred stock
          50,000  
Long-term debt
    1,072,076       941,804  
 
           
 
    1,842,716       1,719,581  
 
           
Current Liabilities:
               
Current maturities of long-term debt
    22,400       52,400  
Accounts payable
    59,351       56,661  
Accounts payable, affiliated companies
    13,894        
Accrued interest
    28,810       10,993  
Dividends declared
          968  
Accrued salaries and benefits
    16,421       14,032  
Current income taxes payable
          49,673  
Intercompany income taxes payable
    18,088        
Deferred income taxes
    8,438       21,832  
Risk management liabilities (Note 5)
    43,101       6,455  
Accrued taxes
    4,291       3,541  
Contract termination liabilities
          39,216  
Other current liabilities
    11,349       10,299  
 
           
 
    226,143       266,070  
 
           
Commitments and Contingencies (Note 6)
               
Deferred Credits and Other Liabilities:
               
Deferred income taxes
    283,149       244,244  
Deferred investment tax credit
    20,473       21,793  
Regulatory tax liability
    21,089       23,156  
Customer advances for construction
    77,495       72,005  
Accrued retirement benefits
    45,207       40,269  
Risk management regulatory liability — net (Note 5)
          15,015  
Regulatory liabilities
    121,172       110,911  
Other
    37,027       33,257  
 
           
 
    605,612       560,650  
 
           
TOTAL CAPITALIZATION AND LIABILITIES
  $ 2,674,471     $ 2,546,301  
 
           
The accompanying notes are an integral part of the financial statements.

12


Table of Contents

SIERRA PACIFIC POWER COMPANY
CONSOLIDATED STATEMENTS OF OPERATIONS
(Dollars in Thousands)
(Unaudited)
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2006     2005     2006     2005  
OPERATING REVENUES:
                               
Electric
  $ 284,339     $ 268,109     $ 767,133     $ 712,318  
Gas
    21,106       15,574       141,128       115,248  
 
                       
 
    305,445       283,683       908,261       827,566  
 
                       
OPERATING EXPENSES:
                               
Operation:
                               
Purchased power
    106,158       111,409       267,914       260,498  
Fuel for power generation
    73,066       67,439       188,827       176,427  
Gas purchased for resale
    13,492       12,906       105,240       89,410  
Deferral of energy costs — electric — net
    (2,260 )     (17,414 )     20,973       (7,591 )
Deferral of energy costs — gas — net
    1,130       (2,001 )     7,214       (997 )
Other
    34,119       29,334       101,413       97,872  
Maintenance
    8,065       6,313       24,833       20,064  
Depreciation and amortization
    21,075       22,610       66,037       67,534  
Taxes:
                               
Income taxes
    9,435       10,186       19,162       19,540  
Other than income
    4,622       4,762       15,311       15,441  
 
                       
 
    268,902       245,544       816,924       738,198  
 
                       
OPERATING INCOME
    36,543       38,139       91,337       89,368  
 
                               
OTHER INCOME (EXPENSE):
                               
Allowance for other funds used during construction
    1,357       429       3,509       1,229  
Interest accrued on deferred energy
    1,433       1,785       4,878       5,061  
Other income
    2,491       1,681       7,301       4,148  
Other expense
    (2,138 )     (1,476 )     (6,806 )     (4,709 )
Income taxes
    (1,065 )     (782 )     (3,087 )     (1,997 )
 
                       
 
    2,078       1,637       5,795       3,732  
 
                       
Total Income Before Interest Charges
    38,621       39,776       97,132       93,100  
 
                               
INTEREST CHARGES:
                               
Long-term debt
    18,134       17,307       53,958       51,933  
Other
    1,341       1,001       3,694       3,402  
Allowance for borrowed funds used during construction and capitalized interest
    (882 )     (390 )     (2,819 )     (1,129 )
 
                       
 
    18,593       17,918       54,833       54,206  
 
                       
 
                               
NET INCOME
    20,028       21,858       42,299       38,894  
 
                               
Dividend Requirements and premium on redemption of preferred stock
          975       2,341       2,925  
 
                       
Earnings applicable to common stock
  $ 20,028     $ 20,883     $ 39,958     $ 35,969  
 
                       
The accompanying notes are an integral part of the financial statements.

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SIERRA PACIFIC POWER COMPANY
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)
(Unaudited)
                 
    Nine Months Ended  
    September 30,  
    2006     2005  
CASH FLOWS FROM (USED BY) OPERATING ACTIVITIES:
               
Net Income
  $ 42,299     $ 38,894  
Non-cash items included in net income:
               
Depreciation and amortization
    66,037       67,534  
Deferred taxes and deferred investment tax credit
    (27,392 )     (548 )
AFUDC
    (6,328 )     (2,358 )
Amortization of deferred energy costs — electric
    34,449       32,074  
Amortization of deferred energy costs — gas
    4,773       (486 )
Other non-cash
    2,470       (4,116 )
Changes in certain assets and liabilities:
               
Accounts receivable
    64,902       39,433  
Deferral of energy costs — electric
    (18,143 )     (42,869 )
Deferral of energy costs — gas
    1,897       (902 )
Deferral of energy costs — terminated suppliers
    702        
Materials, supplies and fuel
    695       (4,711 )
Other current assets
    22,832       13,264  
Accounts payable
    12,914       (173 )
Payment to terminating supplier
    (27,958 )      
Proceeds from claim on terminating supplier
    14,974        
Other current liabilities
    22,004       17,506  
Risk Management assets and liabilities
    (1,493 )     2,400  
Other assets
    321        
Other liabilities
    3,308       (1,975 )
 
           
Net Cash from Operating Activities
    213,263       152,967  
 
           
 
               
CASH FLOWS FROM (USED BY) INVESTING ACTIVITIES:
               
Additions to utility plant
    (213,294 )     (92,904 )
AFUDC and other charges to utility plant
    6,328       2,358  
Customer advances for construction
    5,489       6,801  
Contributions in aid of construction
    9,201       8,404  
 
           
Net cash used for utility plant
    (192,276 )     (75,341 )
Disposal of subsidiaries and other property — net
    40       36  
 
           
Net Cash used by Investing Activities
    (192,236 )     (75,305 )
 
           
 
               
CASH FLOWS FROM (USED BY) FINANCING ACTIVITIES:
               
Change in restricted cash and investments
    3,612       2,034  
Proceeds from issuance of long-term debt
    492,619        
Retirement of long-term debt
    (402,671 )     (1,998 )
Redemption of preferred stock
    (51,366 )      
Dividends paid
    (17,926 )     (22,777 )
 
           
Net Cash from (used by) Financing Activities
    24,268       (22,741 )
 
           
 
               
Net Increase in Cash and Cash Equivalents
    45,295       54,921  
Beginning Balance in Cash and Cash Equivalents
    38,153       19,319  
 
           
Ending Balance in Cash and Cash Equivalents
  $ 83,448     $ 74,240  
 
           
 
               
Supplemental Disclosures of Cash Flow Information:
               
Cash paid during period for:
               
Interest
  $ 42,358     $ 39,380  
Income taxes
  $ 12     $  
 
               
Noncash Activities:
               
Transfer of Regulatory Asset (Note 8)
  $ 18,888     $  
The accompanying notes are an integral part of the financial statements

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SIERRA PACIFIC POWER COMPANY
CONSOLIDATED STATEMENTS OF CAPITALIZATION
(Dollars in Thousands)
(Unaudited)
                 
    September 30,     December 31,  
    2006     2005  
Common Shareholder’s Equity:
               
Common stock, $3.75 par value, 1,000 shares authorized, issued and outstanding
  $ 4     $ 4  
Other paid-in capital
    828,991       810,103  
Retained Deficit
    (56,564 )     (80,538 )
Accumulated other comprehensive loss
    (1,791 )     (1,792 )
 
           
Total Common Shareholder’s Equity
    770,640       727,777  
 
           
Cumulative Preferred Stock:
               
Not subject to mandatory redemption; 2,000,000 shares outstanding; $25 stated value SPPC Class A Series 1; $1.95 dividend
          50,000  
 
           
Long-Term Debt:
               
Secured Debt
               
Debt Secured by First Mortgage Bonds
               
Revenue Bonds
               
6.35% Series 1992B due 2012
    1,000       1,000  
6.55% Series 1987 due 2013
    39,500       39,500  
6.30% Series 1987 due 2014
    45,000       45,000  
6.65% Series 1987 due 2017
    92,500       92,500  
6.55% Series 1990 due 2020
    20,000       20,000  
6.30% Series 1992A due 2022
    10,250       10,250  
5.90% Series 1993A due 2023
    9,800       9,800  
5.90% Series 1993B due 2023
    30,000       30,000  
6.70% Series 1992 due 2032
    21,200       21,200  
Medium Term Notes
               
6.62% to 6.83% Series C due 2006
    20,000       50,000  
6.95% to 8.61% Series A due 2022
          110,000  
7.10% to 7.14% Series B due 2023
          58,000  
 
           
Subtotal
    289,250       487,250  
 
           
General and Refunding Mortgage Securities
               
8.00% Series A due 2008
    320,000       320,000  
6.25% Series H due 2012
    100,000       100,000  
6.00% Series M due 2016
    300,000        
 
           
Subtotal
    720,000       420,000  
 
           
Debt Secured by General and Refunding Mortgage Securities
               
5.00% Series 2001 due 2036
    80,000       80,000  
 
           
Subtotal
    80,000       80,000  
 
           
Unamortized bond premium and discount, net
    (704 )     (666 )
Current maturities and sinking fund requirements
    (22,400 )     (52,400 )
Other, excluding current portion
    5,930       7,620  
 
           
Total Long-Term Debt
    1,072,076       941,804  
 
           
TOTAL CAPITALIZATION
  $ 1,842,716     $ 1,719,581  
 
           
The accompanying notes are an integral part of the financial statements

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CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation
     The consolidated financial statements of Sierra Pacific Resources (SPR) include the accounts of SPR and its wholly-owned subsidiaries, Nevada Power Company (NPC) and Sierra Pacific Power Company (SPPC) (collectively, the “Utilities”), Tuscarora Gas Pipeline Company (TGPC), Sierra Gas Holding Company (SGHC), Sierra Pacific Energy Company (SPE), Lands of Sierra (LOS), Sierra Pacific Communications (SPC) and Sierra Water Development Company (SWDC). SPC is a discontinued operation, and as such, is reported separately in the financial statements. The consolidated financial statements of NPC include the accounts of NPC and its wholly-owned subsidiary, Nevada Electric Investment Company (NEICO). The consolidated financial statements of SPPC include the accounts of SPPC and its wholly-owned subsidiaries, GPSF-B, Piñon Pine Corporation (PPC), Piñon Pine Investment Company, Piñon Pine Company, L.L.C. and Sierra Pacific Funding L.L.C. All significant intercompany transactions and balances have been eliminated in consolidation.
     The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of certain assets and liabilities. These estimates and assumptions also affect the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of certain revenues and expenses during the reporting period. Actual results could differ from these estimates.
     In the opinion of the management of SPR, NPC, and SPPC, the accompanying unaudited interim consolidated financial statements contain all adjustments necessary to present fairly the consolidated financial position, results of operations and cash flows for the periods shown. These consolidated financial statements do not contain the complete detail or footnote disclosure concerning accounting policies and other matters, which are included in full year financial statements; therefore, they should be read in conjunction with the audited financial statements included in SPR’s, NPC’s, and SPPC’s Annual Reports on Form 10-K for the year ended December 31, 2005 (the “2005 Form 10-K”).
     The results of operations and cash flows of SPR, NPC and SPPC for the three and nine months ended September 30, 2006, are not necessarily indicative of the results to be expected for the full year.
Reclassifications
     Certain items previously reported have been reclassified to conform to the current year’s presentation. Previously reported net income and shareholders’ equity were not affected by these reclassifications.

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Deferral of Energy Costs
     NPC and SPPC follow deferred energy accounting. See Note 1, Summary of Significant Accounting Policies, of Notes to Consolidated Financial Statements in NPC’s and SPPC’s 2005 Form 10-K, for additional information regarding the implementation of deferred energy accounting by the Utilities.
     The following deferred energy costs were included in the consolidated balance sheets as of September 30, 2006 (dollars in thousands):
                                 
    September 30, 2006  
    NPC     SPPC     SPPC     SPR  
Description   Electric     Electric     Gas     Total  
Unamortized balances approved for collection in current rates
                               
Electric — NPC Period 1 (Reinstatement of deferred energy costs) (1)
  $ 178,825     $     $     $ 178,825  
Electric — NPC Period 3 (effective 4/05, 2 years)
    6,152                   6,152  
Electric — SPPC Period 3 (effective 6/05, 27 months)
          10,313             10,313  
Electric — NPC Period 4 (effective 4/05, 2 years)
    19,899                   19,899  
Electric — NPC Period 5 (effective 8/06, 2 years)
    154,617                   154,617  
Electric — SPPC Period 5 (effective 7/06, 2 years)
          34,080             34,080  
Natural Gas — Period 5 (effective 11/05, 1 year)
                (194 )     (194 )
LPG Gas — Period 3 (effective 11/04, 2 years)
                1       1  
Balances pending PUCN approval
                1,075       1,075  
Cumulative CPUC balance
          11,015             11,015  
Balances accrued since end of periods submitted for PUCN approval
    83,757       15,241       (1,262 )     97,736  
Claims for terminated supply contracts (2)
    82,385       20,409             102,794  
 
                       
Total
  $ 525,635     $ 91,058     $ (380 ) (3)   $ 616,313  
 
                       
Current Assets
                               
Deferred energy costs — electric
  $ 117,856     $ 35,648           $ 153,504  
Deferred energy costs — gas
                       
Deferred Assets
                               
Deferred energy costs — electric
    407,779       55,410             463,189  
Deferred energy costs — gas
                       
 
                       
Current Liabilities
                (380 )     (380 )
 
                       
Total
  $ 525,635     $ 91,058     $ (380 )   $ 616,313  
 
                       
 
(1)   Amount not in current rates. As discussed in Note 6, Commitments and Contingencies, Nevada Power Company 2001 Deferred Energy Case, the recovery period for this amount has yet to be determined by the PUCN.
 
(2)   Amounts related to claims for terminated supply contracts are discussed in Note 6, Commitments and Contingencies.
 
(3)   Credits represent over-collections, that is, the extent to which gas or fuel and purchased power costs recovered through rates exceed actual gas or fuel and purchased power costs. Accordingly, amounts are reflected in current liabilities.
Carrying Charge on the Lenzie Generating Station
     In 2004, the Public Utility Commission of Nevada (PUCN) granted NPC’s request to designate the Chuck Lenzie Generating Station (“Lenzie”) as a critical facility and allowed a 2% enhanced Return on Equity (ROE) to be applied to the Lenzie construction costs expended after acquisition. The order allowed for an additional 1% enhanced ROE if the two Lenzie generating units were brought on line early. In addition, the PUCN granted NPC’s request to begin accumulating a carrying charge as a regulatory asset including the 3% enhanced ROE (collectively referred to as “carrying charges”), until the plant is included in rates.
     Units 1 and 2 were declared commercially operable in January 2006 and April 2006, respectively, qualifying for the incentive ROE treatment. Based on the regulatory order, through September 30, 2006, NPC has accumulated approximately $27.0 million in carrying charges; however, $3.8 million of this amount has not been recorded for financial reporting purposes as it represents equity carrying costs that are not recognized until collected through regulated rates. For financial reporting purposes, through September 30, 2006, NPC recognized $23.2 million in other income, and recorded a corresponding regulatory asset, which represents only the carrying charge component associated with incurred debt costs. NPC expects to seek recovery of the $27.0 million in carrying charges in its next general rate case to be filed in mid-November.

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Recent Pronouncements
      SFAS 123 (R)
          SPR adopted Statement of Financial Accounting Standards (SFAS) No. 123 (revised 2004), “Share Based Payment” (SFAS 123 R) in the first quarter of 2006 using the modified prospective method. The Company had previously applied the provisions of Accounting Principles Board Opinion No. 25, “Accounting for Stock Issued to Employees”, in accounting for its stock compensation plans and in accordance with the disclosure only provisions of SFAS No. 123, “Accounting for Stock-Based Compensation”, and the updated disclosure requirements set forth in SFAS No. 148, “Accounting for Stock-Based Compensation-Transition and Disclosure”. Accordingly, no compensation cost had been recognized previously.
          SPR’s executive long-term incentive plan for key management employees permits the following types of grants, separately or in combination: non-qualified and qualified stock options, stock appreciation rights, restricted stock, performance units, performance shares and bonus stock. SPR currently issues Performance Shares and Non Qualified Stock Options (NQSO) under this plan. In addition, the Company also has an Employee Stock Purchase Plan (ESPP). Please refer to Note 13, Stock Compensation Plans in the Notes to Consolidated Financial Statements in the 2005 Form 10-K for additional information.
     The adoption of SFAS 123 (R) did not have a material impact on the results of operations for SPR, NPC or SPPC.
      SFAS 155
          In February 2006, the Financial Accounting Standards Board (FASB) issued Statement No. 155 “Accounting for Certain Hybrid Financial Instruments (“SFAS 155”). This Statement amends FASB Statements No. 133, “Accounting for Derivative Instruments and Hedging Activities,” and No. 140, “Accounting for Transfers and Servicing of Financial Assets and Extinguishments of Liabilities.” This Statement resolves issues addressed in Statement 133 Implementation Issue No. D1, “Application of Statement 133 to Beneficial Interests in Securitized Financial Assets.” SFAS 155:
    permits fair value re-measurement for any hybrid financial instrument that contains an embedded derivative that otherwise would require bifurcation;
 
    clarifies which interest-only strips and principal-only strips are not subject to the requirements of Statement 133,
 
    establishes a requirement to evaluate interests in securitized financial assets to identify interests that are freestanding derivatives or that are hybrid financial instruments that contain an embedded derivative requiring bifurcation;
 
    clarifies that concentrations of credit risk in the form of subordination are not embedded derivatives; and
 
    amends Statement 140 to eliminate the prohibition on a qualifying special-purpose entity from holding a derivative financial instrument that pertains to a beneficial interest other than another derivative financial instrument.
          This statement is effective for years beginning after September 15, 2006. Earlier adoption is permitted as of the beginning of an entity’s fiscal year, provided the entity has not yet issued financial statements, including financial statements for any interim period for that fiscal year. At adoption, any difference between the total carrying amount of the individual components of the existing bifurcated hybrid financial instrument and the fair value of the combined hybrid financial instrument should be recognized as a cumulative-effect adjustment to beginning retained earnings. SPR has early adopted SFAS 155, as of January 1, 2006, however, as of September 30, 2006, SPR and the Utilities do not have any financial instruments that meet the criteria specified under SFAS 155.
      SFAS 157
          In September 2006, the Financial Accounting Standards Board (“FASB”) issued Statement of Financial Accounting Standards No. 157, “Fair Value Measurement” (“SFAS 157”). SFAS 157 addresses the need for increased consistency in fair value measurements, defining fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. It also establishes a framework for measuring fair value and expands disclosure requirements. SFAS 157 is effective for SPR and the Utilities beginning January 1, 2008. SPR and the Utilities are currently evaluating the impact of the adoption of SFAS 157 on their consolidated financial statements.
      SFAS 158
          In September 2006, the FASB issued SFAS 158 (“SFAS 158”) “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans — an amendment of FASB Statements No. 87, 88, 106, and 132-(R).” SFAS 158 seeks to address certain important deficiencies the FASB finds in today’s pension accounting. Currently, changes in a plan’s assets and its benefit obligation are not being recognized as they occur and important information about postretirement plans is currently being relegated to the footnotes rather than being recognized in the financial statements. Specifically, the amendment will

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require SPR and the Utilities to recognize the overfunded or underfunded status of defined benefit postretirement plans in their Consolidated Balance Sheets. An overfunded status would result in the recognition of an asset and an underfunded status would result in the recognition of a liability. The adjustment to record an asset or liability would be offset by a regulatory asset or liability. SFAS 158’s requirement to recognize the funded status of a benefit plan and new disclosure requirements are effective as of the end of the fiscal year ending after December 15, 2006. The requirement to measure plan assets and benefit obligations as of the date of the employer’s fiscal year-end statement of financial position is effective for fiscal years ending after December 15, 2008. SPR and the Utilities are currently assessing the impact SFAS 158 will have on their consolidated financial position, the outcome of which may be material. However, management does not currently believe that any adjustment for 2006 would affect SPR’s or the Utilities compliance with the covenants under their respective financing agreements or their ability to incur additional indebtedness.
      FIN 46(R)-6
          In April 2006, the FASB issued FASB Staff Position (“FSP”) FIN 46R-6, Determining the Variability to Be Considered in Applying FASB Interpretation No. 46(R). This FSP addresses certain implementation issues related to FASB Interpretation No. 46 (Revised December 2003), Consolidation of Variable Interest Entities. Specifically, FSP FIN 46R-6 addresses how a reporting enterprise should determine the variability to be considered in applying FIN 46R. The variability that is considered in applying FIN 46R affects the determination of (a) whether an entity is a variable interest entity (“VIE”), (b) which interests are “variable interests” in the entity, and (c) which party, if any, is the primary beneficiary of the VIE. That variability affects any calculation of expected losses and expected residual returns, if such a calculation is necessary. SPR and the Utilities are required to apply the guidance in this FSP prospectively to all entities (including newly created entities) and to all entities previously required to be analyzed under FIN 46R when a “reconsideration event” has occurred, beginning July 1, 2006. SPR and the Utilities will evaluate the impact of this Staff Position at the time any such “reconsideration event” occurs, and for any new entities.
      FIN 48
          In July 2006, the FASB issued FASB Interpretation No. 48 (“FIN 48”) “Accounting for Uncertainty in Income Taxes — an interpretation of FASB Statement No. 109”, to clarify certain aspects of accounting for uncertain tax positions, including issues related to the recognition and measurement of those tax positions. This interpretation is effective for fiscal years beginning after December 15, 2006. SPR and the Utilities are in the process of evaluating the impact FIN 48 will have on their consolidated financial statements.
      SAB 108
          In September 2006, the Securities and Exchange Commission (SEC) issued Staff Accounting Bulletin No. 108, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements (SAB 108), to address diversity in practice in quantifying financial statement misstatements. SAB 108 requires that SPR and the Utilities quantify misstatements based on their impact on each of its financial statements and related disclosures. SAB 108 is effective as of December 31, 2006, allowing a one-time transitional cumulative effect adjustment to retained earnings as of January 1, 2006 for errors that were not previously deemed material, but are material under the guidance in SAB 108. SPR and the Utilities are currently evaluating the impact of adopting SAB 108 on their consolidated financial statements.
NOTE 2. SEGMENT INFORMATION
          SPR’s Utilities operate three regulated business segments (as defined by SFAS 131, “Disclosure about Segments of an Enterprise and Related Information”), which are NPC electric, SPPC electric and SPPC natural gas service. Electric service is provided to Las Vegas and surrounding Clark County by NPC, and to northern Nevada and the Lake Tahoe area of California by SPPC. Natural gas services are provided by SPPC in the Reno-Sparks area of Nevada. Other segment information includes segments below the quantitative threshold for separate disclosure.
          The net assets and operating results of SPC are reported as discontinued operations in the financial statements for 2006 and 2005. Accordingly, the segment information excludes financial information of SPC. NPC’s total assets changed from the amounts reported in the 2005 10-K, mainly due to the acquisition of the Silverhawk Generation Facility in the first quarter of 2006, costs to complete construction of Lenzie, and reinstated deferred energy costs of approximately $180 million as discussed in Note 6, Commitments and Contingencies, Nevada Power Company 2001 Deferred Energy Case.
          Operational information of the different business segments is set forth below based on the nature of products and services offered. SPR evaluates performance based on several factors, of which, the primary financial measure is business segment operating income. The accounting policies of the business segments are the same as those described in Note 1, Summary of Significant Accounting Policies of the Notes to Consolidated Financial Statements in the 2005 Form 10-K. Inter-segment revenues are not material.

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Financial data for business segments is as follows (dollars in thousands):
                                                         
Three Months Ended   NPC     SPPC     Total                     Reconciling        
September 30, 2006   Electric     Electric     Electric     Gas     Other     Eliminations     Consolidated  
 
                                                       
Operating Revenues
  $ 776,235     $ 284,339     $ 1,060,574     $ 21,106     $ 287     $     $ 1,081,967  
 
                                         
Operating Income 1
  $ 244,920     $ 36,056     $ 280,976     $ 487     $ 2,345     $     $ 283,808  
 
                                         
                                                         
Three Months Ended   NPC     SPPC     Total                     Reconciling        
September 30, 2005   Electric     Electric     Electric     Gas     Other     Eliminations     Consolidated  
 
                                                       
Operating Revenues
  $ 675,181     $ 268,109     $ 943,290     $ 15,574     $ 262     $     $ 959,126  
 
                                         
Operating Income
  $ 126,173     $ 38,885     $ 165,058     $ (746 )   $ (1,428 )   $     $ 162,884  
 
                                         
                                                         
Nine Months Ended   NPC     SPPC     Total                     Reconciling        
September 30, 2006   Electric     Electric     Electric     Gas     Other     Eliminations     Consolidated  
 
                                                       
Operating Revenues
  $ 1,701,379     $ 767,133     $ 2,468,512     $ 141,128     $ 1,302     $     $ 2,610,942  
 
                                         
Operating Income 1
  $ 332,602     $ 84,866     $ 417,468     $ 6,471     $ 10,186     $     $ 434,125  
 
                                         
Assets
  $ 5,901,959     $ 2,333,342     $ 8,235,301     $ 255,401     $ 246,056     $ 85,728     $ 8,822,486  
 
                                         
                                                         
Nine Months Ended   NPC     SPPC     Total                     Reconciling        
September 30, 2005   Electric     Electric     Electric     Gas     Other     Eliminations     Consolidated  
 
                                                       
Operating Revenues
  $ 1,480,699     $ 712,318     $ 2,193,017     $ 115,248     $ 873     $     $ 2,309,138  
 
                                         
Operating Income
  $ 203,469     $ 83,824     $ 287,293     $ 5,544     $ 9,888     $     $ 302,725  
 
                                         
                                                         
    NPC     SPPC     Total                     Reconciling        
December 31, 2005   Electric     Electric     Electric     Gas     Other     Eliminations     Consolidated  
 
                                                       
Assets
  $ 5,173,921     $ 2,218,938     $ 7,392,859     $ 245,707     $ 150,324     $ 81,656     $ 7,870,546  
 
                                         
 
1   Operating income for the three and nine months ended September 30, 2006 increased significantly from prior periods primarily due to the reinstatement of deferred energy costs as discussed further in Note 6, Commitments and Contingencies, Nevada Power Company 2001 Deferred Energy Case.
NOTE 3. REGULATORY ACTIONS
      Nevada Power Company
2006 Deferred Energy and BTER Update
          On January 17, 2006, NPC filed a Deferred Energy Accounting Adjustment (DEAA) rate case application with the PUCN seeking recovery for purchased fuel and power costs and to increase its going forward Base Tariff Energy Rate (BTER) to reflect future energy costs. Refer to the 2005 Form 10-K for specific details about this filing.
          On April 12, 2006, the PUCN approved an agreement among the interveners and NPC, which, effective May 1, 2006, set NPC’s BTER rates such that an estimated $112 million (revised by June 28, 2006 DEAA agreement — see below) of new revenues would be collected for fuel and power purchases in addition to the start of an $8.4 million collection related to a previous DEAA rate case. Combined, the approximately $120 million increase represented an overall average rate increase of approximately 6.5%.
          In the Deferred Energy portion of the case, NPC had requested authorization to recover $171.5 million of previously incurred purchased fuel and power costs over a one year period. On June 28, 2006, the PUCN approved a negotiated settlement, which specified (1) a reduction of $1.6 million to the BTER approved on April 12, 2006 based on an updated projection of costs and (2) granted NPC full recovery of the $171.5 million of deferred costs during a two year period beginning August 1, 2006. However, the $171.5 million was reduced by a $16.5 million payment previously received by NPC in connection with the Lenzie acquisition. Under this agreement, the DEAA rate changes required to asymmetrically recover the deferred balance are scheduled to be implemented during a two year period such that they will be offset by the expiration of previously approved DEAA rates. As a result, no rate increase was required.

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      Sierra Pacific Power Company
2006 Natural Gas and Propane Deferred Energy and BTER Update
          On May 15, 2006, SPPC’s gas distribution operation filed applications with the PUCN seeking recovery of deferred natural gas and propane costs accumulated between April 1, 2005 and March 31, 2006. The applications sought to establish a new natural gas DEAA rate to recover $2.5 million of deferred natural gas costs and a new propane DEAA rate to recover $120 thousand of deferred propane costs. SPPC also requested authorization to increase going forward natural gas and propane BTER’s to reflect forecasted gas costs. The new natural gas BTER was expected to increase revenue by $24.5 million. Combined with the expiration of a previous DEAA rate, the requested natural gas rate increases (DEAA and BTER) totaled approximately 10%. The new propane BTER was expected to increase revenue by $66 thousand, which combined with the $120 thousand in deferred costs and the expiration of previously implemented DEAA rates, resulted in an overall requested propane rate increase of approximately 30%.
          On October 25, 2006, the PUCN approved negotiated natural gas and propane settlements which consolidated the deferred natural gas and propane balances for collection from all gas customers and reduced the combined balance to $1.1 million. The agreements transferred approximately $1.4 million to other deferral periods and $.1 million to expense accounts. The agreements called for the cost recovery to occur over a 12 month period beginning December 1, 2006.
          The negotiated going forward natural gas rate is expected to recover an additional $1.3 million in revenue, which is a decrease from the originally requested $24.5 million. The decrease reflects more current natural gas price expectations.
          These settlements, combined with the expiration of a previous natural gas DEAA rate will cause natural gas customer rates to decrease by 2.5% and cause propane customer rates to increase by 3.3 %.
December 2005 Electric Deferred Energy and BTER Update
          On December 1, 2005, SPPC filed an electric DEAA rate case application with the PUCN. The application sought recovery of purchased fuel and power costs and requested an increase in SPPC’s going forward BTER to reflect future energy costs. Refer to the 2005 Form 10-K for specific details about this filing.
          On April 12, 2006, the PUCN issued an order authorizing SPPC to increase its BTER on May 1, 2006, such that SPPC expects to collect $31 million in new revenues for purchased power. The change represented a 3.5% increase to customer rates.
          In the Deferred Energy portion of this case, SPPC had requested authorization to begin a one year recovery of the $46.7 million of previously incurred purchased fuel and power costs on July 1, 2006. On June 7, 2006, the PUCN approved a negotiated settlement, which granted SPPC full recovery of the deferred costs during a two year period beginning July 1, 2006. Under this agreement, the DEAA rate changes required to asymmetrically recover the $46.7 million deferred balance are scheduled to be implemented such that they will be offset by the expiration of previously approved DEAA rates. As a result, no rate increase was required.
2005 Electric and Gas General Rate Cases
          On October 3, 2005, SPPC filed a gas general rate case along with its statutorily required electric general rate case. Refer to the 2005 Form 10-K for specific details about this filing.
          On April 27, 2006, the PUCN issued its order to change electric and gas general rates. Although the order differed from our requested filing, the changes did not require material adjustments to net income. The PUCN vote resulted in the following significant items:
    Electric general revenue decrease: approximately $14 million annually or 1.5% effective May 1, 2006
 
    Gas general revenue increase: $4.5 million annually or 2.3%, effective May 1, 2006
 
    Electric Return on Equity and Rate of Return: 10.6% and 8.96% respectively
 
    Gas Return on Equity and Rate of Return: 10.6% and 7.98% respectively
 
    Approval to continue recovery of SPPC’s allocated amount of the 1999 NPC/SPPC merger costs and goodwill from Electric customers
 
    Approval to recover an allocated amount of the 1999 NPC/SPPC merger costs and goodwill from Gas customers
 
    New depreciation rates for Gas and Electric facilities
 
    Deferred recovery of legal expenses related to the Enron purchased power contract litigation

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NOTE 4.   LONG-TERM DEBT
     As of September 30, 2006, NPC’s, SPPC’s and SPR’s aggregate annual amount of maturities for long-term debt (including obligations related to capital leases) for the balance of 2006, for the next four years and thereafter are shown below (dollars in thousands):
                                 
                    SPR Holding Co. and        
    NPC     SPPC     Other Subs.     SPR Consolidated  
2006
  $ 16,882     $ 20,530     $     $ 37,412  
2007
    5,950       2,400             8,350  
2008
    7,066       322,400             329,466  
2009
    22,138       600             22,738  
2010
    57,843                   57,843  
 
                       
 
    109,879       345,930             455,809  
Thereafter
    2,351,250       749,250       659,142       3,759,642  
 
                       
 
    2,461,129       1,095,180       659,142       4,215,451  
Unamortized Premium(Discount) Amount
    (13,222 )     (704 )     1,867       (12,059 )
 
                       
Total
  $ 2,447,907     $ 1,094,476     $ 661,009     $ 4,203,392  
 
                       
          Substantially all utility plant is subject to the liens of NPC’s and SPPC’s indentures under which their respective General and Refunding Mortgage bonds are issued and SPPC’s First Mortgage Bonds are issued.
Financing Transactions (NPC)
      Pollution Control Refunding Revenue Bonds, Series 2006, 2006A and 2006B
          On August 17, 2006, on behalf of NPC, Clark County, Nevada (Clark County) issued $39.5 million aggregate principal amount of its Pollution Control Refunding Revenue Bonds, Series 2006, due January 1, 2036. On the same date, on behalf of NPC, Coconino County, Arizona Pollution Control Corporation (Coconino County) issued $40 million aggregate principal amount of its Pollution Control Refunding Revenue Bonds, Series 2006A, due September 1, 2032, and $13 million aggregate principal amount of its Pollution Control Refunding Revenue Bonds, Series 2006B, due March 1, 2039.
          In connection with the issuance of these Bonds, NPC entered into financing agreements with Clark County and Coconino County, pursuant to which Clark County and Coconino County will lend the proceeds from the sales of the bonds to NPC. NPC’s payment obligations under the financing agreements are secured by NPC’s General and Refunding Mortgage Notes, Series P.
          The interest rates of the Bonds will be determined by an auction. The method of determining the interest rate on the Bonds may be converted from time to time so that such Bonds would thereafter bear interest at a daily, weekly, flexible, auction or term rate as designated.
          The proceeds of the offering were used to refund the following, all of which were previously issued for the benefit of NPC:
    $39.5 million principal amount of Clark County’s Pollution Control Refunding Revenue Bonds, Series 1992B,
 
    $20 million principal amount of Coconino County’s Pollution Control Revenue Bonds, Series 1996,
 
    $20 million principal amount of Coconino County’s Pollution Control Revenue Bonds, Series 1997B, and
 
    $13 million principal amount of Coconino County’s Pollution Control Revenue Bonds, Series 1995E.
      General and Refunding Mortgage Notes, Series O
          On May 12, 2006, NPC issued and sold $250 million in aggregate principal amount of 6.5% General and Refunding Mortgage Notes, Series O, due 2018. The Series O Notes were issued with registration rights. Proceeds of the offering, together with available cash, were utilized to:
    fund the early redemption of $78 million aggregate principal amounts of NPC’s 7.2% Industrial Development Revenue Bonds, Series 1992 C, due 2022,
 
    fund the early redemption, in June 2006, of approximately $72.2 million aggregate
 
      principal amount of NPC’s 7.75% Junior Subordinated Debentures due 2038 (when the debentures were repaid upon redemption, the proceeds from the repayment were used to simultaneously redeem an equal amount of the 7.75% Cumulative Quarterly Preferred Securities of NVP Capital III, a wholly-owned subsidiary of NPC),
 
    repay amounts outstanding under NPC’s revolving credit facility, and
 
    pay related fees from the offering, and for general corporate purposes.

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          On June 26, 2006, NPC issued an additional $75 million in aggregate principal amount of its 6.5% General and Refunding Mortgage Notes, Series O, as part of the same series as the original Notes. The aggregate principal amount of 6.5% General and Refunding Mortgage Notes, Series O, due 2018, outstanding is $325 million as of September 30, 2006. The proceeds from the second issuance, along with the proceeds from an offering of $120 million of NPC’s 6.65% General and Refunding Mortgage Notes, Series N, due 2036 (described below) were used to pay the total consideration for the tender offer for the 10.875% General and Refunding Mortgage Notes, Series E, described below. The remaining proceeds were used to pay related fees and expenses from this offering, and for general corporate purposes.
General and Refunding Mortgage Notes, Series N
          On April 3, 2006, NPC issued and sold $250 million of its 6.65% General and Refunding Mortgage Notes, Series N, due April 1, 2036. The Series N Notes were issued with registration rights. Proceeds of the offering, together with available cash, were utilized to:
    fund the early redemption of $35 million aggregate principal amount of NPC’s 8.50% Series Z First Mortgage Bonds due 2023 plus approximately $1 million of associated redemption premiums,
 
    fund the early redemption of $105 million aggregate principal amount of 6.70% Industrial Development Revenue Bonds, due 2022, and
 
    fund the early redemption of approximately $122.5 million aggregate principal amount of NPC’s 8.20% Junior Subordinated Debentures due 2037 (when the debentures were repaid upon redemption, the proceeds from the repayment were used to simultaneously redeem an equal amount of the 8.20% Cumulative Quarterly Preferred Securities of NVP Capital I, a wholly-owned subsidiary of NPC).
          On June 26, 2006, NPC issued an additional $120 million in aggregate principal amount of its 6.65% General and Refunding Mortgage Notes, Series N, as part of the same series as the original Notes. The aggregate principal amount of 6.65% General and Refunding Mortgage Notes, Series N, due 2036, outstanding is $370 million as of September 30, 2006. The proceeds from the second issuance, along with the proceeds from an offering of $75 million of NPC’s 6.5% General and Refunding Mortgage Notes, Series O, due 2018 (described above) were used to pay the total consideration for the tender offer on the 10.875% General and Refunding Mortgage Notes, Series E, described below.
Tender Offer for General and Refunding Mortgage Notes, Series E
          On June 1, 2006, NPC commenced a tender offer for all of its 10.875% General and Refunding Mortgage Notes, Series E, due 2009. In conjunction with that offer, NPC solicited the consent of holders of a majority in aggregate principal amount of the Notes to eliminate substantially all of the restrictive covenants contained in the officer’s certificate governing the Notes. Approximately $150 million of $162.5 million Series E Notes outstanding were validly tendered and accepted by NPC. Those holders who tendered the Notes and delivered their consents by June 14, 2006 were entitled to receive a consent payment of $30 per $1000 principal amount of Notes, plus tender consideration for each $1,000 principal amount of Notes validly tendered. Those holders who tendered the Notes after June 14, 2006, but prior to June 28, 2006, were entitled to receive the tender consideration only. This tender consideration was $1,038.45 in cash plus accrued and unpaid interest up to the June 29, 2006 settlement date per $1,000 principal amount of the Notes tendered. Proceeds from the June 26, 2006 issuance of Series N and Series O Notes (discussed above) were used to fund the tender offer. The total consideration (including the consent payment and accrued interest) paid on June 29, 2006 was approximately $163.6 million. As of September 30, 2006, approximately $12.6 million of the Series E Notes remained outstanding.
          On October 16, 2006, NPC redeemed the remaining $12.6 million aggregate principal amount of the Series E Notes, plus accrued interest, using available cash on hand.
Revolving Credit Facility
          On April 19, 2006, NPC increased the size of its second amended and restated revolving credit facility expiring 2010 to $600 million. The facility will provide additional liquidity for increased commodity prices and temporary bridge financing of capital expenditures. As of September 30, 2006, NPC had $55 million of letters of credit outstanding and had borrowed $50 million under the revolving credit facility. As of October 30, 2006, NPC had $55 million of letters of credit outstanding and had no amounts borrowed under the revolving credit facility.
          The NPC Credit Agreement contains two financial maintenance covenants. The first requires that NPC maintain a ratio of consolidated indebtedness to consolidated capital, determined as of the last day of each fiscal quarter, not to exceed 0.68 to 1. The second requires that NPC maintain a ratio of consolidated cash flow to consolidated interest expense, determined as of the last day of each fiscal quarter for the period of four consecutive fiscal quarters, not to be less than 2.0 to 1. As of September 30, 2006, NPC was in compliance with these covenants.

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          The NPC Credit Agreement provides for an event of default if there is a failure under NPC’s other financing agreements to meet certain payment terms or to observe other covenants that would result in an acceleration of payments due.
          The NPC Credit Agreement places certain restrictions on debt incurrence, liens and dividends. These restrictions are discussed in Note 9, Debt Covenant Restrictions in the Notes to Consolidated Financial Statements in the 2005 Form 10-K.
General and Refunding Mortgage Notes, Series M
          On January 18, 2006, NPC issued and sold $210 million of its 5.95% General and Refunding Mortgage Notes, Series M, due March 15, 2016. The Series M Notes were issued with registration rights. On February 10 , 2006 the net proceeds of the issuance plus available cash were used to repay $210 million of amounts outstanding under NPC’s revolving credit facility, which were borrowed to finance the purchase of a 75% ownership interest in the Silverhawk Generating Facility.
Financing Transactions (SPPC)
Humboldt County Pollution Control Refunding Revenue Bonds
          On October 30, 2006, the 6.35% Humboldt County Pollution Control Refunding Revenue Bonds, Series 1992B, due August 1, 2022, in the amount of $1 million were redeemed at 100% of the stated principal amount, plus accrued interest.
Revolving Credit Facility
          On April 19, 2006, SPPC increased the size of its amended and restated revolving credit facility expiring 2010 to $350 million. The facility will provide additional liquidity for increased commodity prices and temporary bridge financing of capital expenditures. As of September 30, 2006, SPPC had $8 million of letters of credit outstanding and had no amounts borrowed under the revolving credit facility. As of October 30, 2006, SPPC had $8 million of letters of credit and had no amounts borrowed under the revolving credit facility.
          The SPPC Credit Agreement contains two financial maintenance covenants. The first requires that SPPC maintain a ratio of consolidated indebtedness to consolidated capital, determined as of the last day of each fiscal quarter, not to exceed 0.68 to 1. The second requires that SPPC maintain a ratio of consolidated cash flow to consolidated interest expense, determined as of the last day of each fiscal quarter for the period of four consecutive fiscal quarters, not to be less than 2.0 to 1. As of September 30, 2006, SPPC was in compliance with these covenants.
          The SPPC Credit Agreement provides for an event of default if there is a failure under SPPC’s other financing agreements to meet certain payment terms or to observe other covenants that would result in an acceleration of payments due.
          The SPPC Credit Agreement, similar to SPPC’s Series H Notes, places certain restrictions on debt incurrence, liens and dividends. These limitations are discussed in Note 9, Debt Covenant Restrictions in the Notes to Consolidated Financial Statements in the 2005 Form 10-K.
General and Refunding Mortgage Notes, Series M
          On March 23, 2006, SPPC issued and sold $300 million of its 6.00% General and Refunding Mortgage Notes, Series M, due May 15, 2016. The Series M Notes were issued with registration rights. Proceeds of the offering were used to repay $173 million borrowed under the revolving credit facility that was utilized to:
    fund the early redemption of $110 million aggregate principal amount of SPPC’s Collateralized Medium Term 6.95% to 8.61% Series A Notes due 2022,
 
    fund the early redemption of $58 million aggregate principal amount of SPPC’s Collateralized Medium Term 7.10% to 7.14% Series B Notes due 2023,
 
    pay for maturing debt of $30 million aggregate principal amount of SPPC’s Collateralized Medium Term 6.81% to 6.83% Series C Notes due 2006, and
 
    pay for $51 million in connection with the redemption of $50 million of SPPC’s Series A Preferred Stock (two million shares of stock were redeemed at a redemption price per share of $25.683, plus accrued dividends to the redemption date of $.4875 per share).
     The remaining $51 million of proceeds have been or will be used as follows:
    payment for maturing debt of $20 million aggregate principal amount of SPPC’s Collateralized Medium Term 6.62% to 6.65% Series C Notes due November 2006; and
 
    payment of related fees and for general corporate purposes.

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NOTE 5.   DERIVATIVES AND HEDGING ACTIVITIES
          SPR, SPPC, and NPC apply SFAS No. 133, “Accounting for Derivative Instruments and Hedging Activities,” as amended by SFAS No. 138 and SFAS No. 149. As amended, SFAS No. 133 establishes accounting and reporting standards for derivatives instruments, including certain derivative instruments embedded in other contracts, and for hedging activities. It requires that an entity recognize all derivatives as either assets or liabilities in the statement of financial position, measure those instruments at fair value, and recognize changes in the fair value of the derivative instruments in earnings in the period of change, unless the derivative meets certain defined conditions and qualifies as an effective hedge. SFAS No. 133 also provides a scope exception for contracts that meet the normal purchase and sales criteria specified in the standard. The normal purchases and normal sales exception requires, among other things, physical delivery in quantities expected to be used or sold over a reasonable period in the normal course of business. Contracts that are designated as normal purchase and normal sales are accounted for under deferred energy accounting and not recorded on the Consolidated Balance Sheets at fair value. A majority of the contracts entered into by the Utilities meet the criteria specified for this exception.
          The energy supply function encompasses the reliable and efficient operation of the Utilities generation, the procurement of all fuels and power and resource optimization (i.e., physical and economic dispatch) and is exposed to risks relating to, but not limited to, changes in commodity prices. SPR’s and the Utilities’ objective in using derivative instruments is to reduce exposure to energy price risk. Energy price risks result from activities that include the generation, procurement and marketing of power and the procurement and marketing of natural gas. Derivative instruments used to manage energy price risk from time to time may include: forward contracts, which involve physical delivery of an energy commodity; options, which mitigate price risk by providing the right, but not the requirement, to buy or sell energy related commodities at a fixed price; and swaps, which require the Utilities to receive or make payments based on the difference between a specified price and the actual price of the underlying commodity. These contracts allow the Utilities to reduce the risks associated with volatile electricity and natural gas markets.
          The following table shows the fair value of the derivatives recorded on the Consolidated Balance Sheets of SPR, NPC, and SPPC, and the related regulatory assets/liabilities. The fair values of the Utilities are determined using quoted exchange prices, external dealer prices and available market pricing curves. Due to deferred energy accounting treatment under which the Utilities operate, regulatory assets and liabilities are established to the extent that electricity and natural gas derivative gains and losses are recoverable or payable through future rates, once realized. This accounting treatment is intended to defer the recognition of mark-to-market gains and losses on energy commodity transactions until the period of settlement and to not recognize gains and losses on the Consolidated Statements of Operations:
                                                 
    September 30, 2006   December 31, 2005
    SPR   NPC   SPPC   SPR   NPC   SPPC
 
                                               
Risk management assets
  $ 28.4     $ 17.3     $ 11.1     $ 50.2     $ 22.4     $ 27.8  
 
                                               
Risk management liabilities
  $ 117.4     $ 74.3     $ 43.1     $ 16.6     $ 10.1     $ 6.5  
 
                                               
Risk management regulatory assets (liabilities)
  $ 109.6     $ 69.8     $ 39.8     $ (15.6 )   $ (.6 )   $ (15.0 )
          The decrease in risk management assets and the increase in risk management liabilities as of September 30, 2006 as compared to December 31, 2005, are due to unfavorable positions on natural gas options held by the Utilities to hedge energy price risk for their customers, as a result of lower prices for natural gas in 2006.
          Also included in risk management assets were $20.7 million, $12.9 million, and $7.8 million in payments for electric and gas options by SPR, NPC, and SPPC, respectively, at September 30, 2006.
NOTE 6.   COMMITMENTS AND CONTINGENCIES
Environmental
Nevada Power Company
Reid Gardner Station
          In May 1997, the Nevada Division of Environmental Protection (NDEP) ordered NPC to submit a plan to eliminate the discharge of Reid Gardner Station wastewater to groundwater. The NDEP order also required a hydrological assessment of groundwater impacts in the area. In June 1999, NDEP determined that wastewater ponds had degraded groundwater quality. In August 1999, NDEP issued a discharge permit to Reid Gardner Station and an order that requires all wastewater ponds to be closed or lined with impermeable liners over the next 10 years. This order also required NPC to submit a Site Characterization Plan to NDEP to ascertain impacts. This plan has been reviewed and approved by NDEP. In collaboration with NDEP, NPC has evaluated remediation requirements. In May 2004, NPC submitted a schedule of remediation actions to NDEP which included proposed dates for corrective action plans and/or suggested additional assessment plans for each specified area. Pond

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construction and lining costs expended to satisfy the NDEP order to date are approximately $30.8 million. Expenditures for 2006 through 2010 are projected to be approximately $21 million.
          In August 2004, NDEP conducted a Facility Air Quality Operating Permit (Title V permit) inspection at the Reid Gardner Station. NDEP requested monitoring, recordkeeping and reporting items and information pertaining to the sources identified in the Title V permit. NPC complied with the request and any subsequent requests that followed. In September and October 2004, NPC met with NDEP to review the results of NDEP’s inspection. NDEP informed NPC of possible non-compliance with some elements of its Title V permit, and on December 2, 2004 issued Notices of Alleged Violation (NOAVs) relating to record-keeping, monitoring and other alleged administrative infractions. Discussions between NPC and NDEP ensued. On July 20, 2005, NDEP issued new Notices of Alleged Violations (NOAVs). In part, these NOAVs represent reissuance of the previously issued NOAVs dated December 2, 2004 and address additional monitoring and reporting issues for the period September 2002 through December 2004. Additional NOAVs were issued concerning intermittent opacity emissions and the monitoring, record-keeping and reporting of such emissions. All NOAVs are subject to an administrative hearing before the Nevada State Environmental Commission and then to judicial review. In July, 2005 NPC received a letter from the Environmental Protection Agency (EPA) requiring submittal of information relating to compliance of Reid Gardner Station with opacity emission limits and reporting requirements. NPC has responded to the EPA information request. In June, 2006, the EPA issued a Finding and Notice of Violation (NOV).
          NPC is engaged in an ongoing dialogue and settlement discussions with NDEP and the EPA and Department of Justice (DOJ) regarding the NOVs and additional environmental controls and equipment changes, environmental benefit projects, monetary penalties, and/or other measures that may be required to achieve a settlement of the alleged violations. Management has booked an estimated minimum liability with respect to these matters. Any environmental controls and equipment changes needed to assure compliance with existing or modified regulations were submitted by NPC to the PUCN for approval in NPC’s latest Integrated Resource Plan (IRP) filing.
Clark Station
          In July 2000, NPC received a request from the EPA for information to determine the compliance of certain generation facilities at NPC’s Clark Station with the applicable State Implementation Plan. In November 2000, NPC and the Clark County Health District entered into a Corrective Action Order requiring, among other steps, capital expenditures at the Clark Station totaling approximately $3 million. In March 2001, the EPA issued an additional request for information that could result in remediation beyond that specified in the November 2000 Corrective Action Order. On October 31, 2003, the EPA issued a violation regarding turbine blade upgrades, which occurred in July 1993. A conference between the EPA and NPC occurred in December 2003. NPC presented evidence on the nature and finding of the alleged violations. In March 2004, the EPA issued another request for information regarding the turbine blade upgrades, and NPC provided information responsive to this request in April and May 2004. NPC’s position is that a violation did not occur. Monetary penalties and retrofit control cost, if any, cannot be reasonably estimated at this time. On May 3, 2006, the EPA, by letter from the DOJ, notified NPC that it intends to initiate an enforcement action against NPC seeking unspecified civil penalties, together with injunctive relief, for alleged violations of the Prevention of Significant Deterioration requirements and Title V operating permit requirements of the Clean Air Act. NPC is continuing its discussions with the DOJ. NPC’s position is that a violation did not occur and is unable to predict the outcome of this action. Monetary penalties and retrofit control cost, if any, cannot be reasonably estimated at this time.
NEICO
          NEICO, a wholly owned subsidiary of NPC, owns property in Wellington, Utah, which was the site of a coal washing and load-out facility. The site has a reclamation estimate supported by a bond of approximately $5 million with the Utah Division of Oil and Gas Mining, which management believes is sufficient to cover reclamation costs. Management is continuing to evaluate various options including reclamation and sale.
Sierra Pacific Power Company
PCB Treatment, Inc.
          In September 1994, Region VII of the EPA notified SPPC that it was being named as a potentially responsible party (PRP) regarding the past improper handling of Polychlorinated Biphenyls (PCB’s) by PCB Treatment, Inc., in two buildings, one located in Kansas City, Kansas and the other in Kansas City, Missouri (the Sites). Prior to 1994, SPPC sent PCB contaminated material to PCB Treatment, Inc. for disposal. Certificates of disposal were issued to SPPC by PCB Treatment, Inc.; however, the contaminated material was not disposed of, but remained on-site. A number of the largest PRP’s formed a steering committee, which completed site investigations and along with the EPA determined that the Sites should be remediated by removing the buildings to the appropriate landfills. SPPC is a member of this steering committee. The cleanup has now been completed on both buildings and are pending inspection and sign off by EPA. The cleanup for the two buildings came in under budget, as such SPPC does not expect any further obligations.

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Litigation
Nevada Power Company
Nevada Power Company 2001 Deferred Energy Case
          On November 30, 2001, NPC made a deferred energy filing with the PUCN seeking repayment for purchased fuel and power costs accumulated between March 1, 2001, and September 30, 2001, as required by law. The application sought to establish a rate to repay purchased fuel and power costs of $922 million and spread the recovery of the deferred costs, together with a carrying charge, over a period of not more than three years.
          On March 29, 2002, the PUCN issued its Order on the application, allowing NPC to recover $478 million over a three-year period, but disallowing $434 million of deferred purchased fuel and power costs and $30.9 million in carrying charges consisting of $10.1 million in carrying charges accrued through September 2001 and $20.8 million in carrying charges accrued from October 2001 through February 2002. The Order stated that the disallowance was based on alleged imprudence in incurring the disallowed costs. NPC and the Bureau of Consumer Protection (BCP) both sought individual review of the PUCN Order in the First District Court of Nevada. The District Court affirmed the PUCN’s decision. Both NPC and the BCP filed Notices of Appeal with the Nevada Supreme Court.
          Oral argument was heard on February 23, 2006. On July 20, 2006, the Nevada Supreme Court ruled NPC is allowed to recover $180 million of the disallowed deferred energy costs and directed the District Court to remand the issue back to the PUCN to determine the rate schedule that will be used to recover this amount. In all other respects, the Nevada Supreme Court affirmed the District Court’s decision on the PUCN disallowance. In the third quarter of 2006, as a result of the Nevada Supreme Court decision, NPC recorded approximately $180 million , before tax , of the previously disallowed deferred energy costs in its Statements of Operations as “Reinstatement of Deferred Energy Costs.” NPC is unable to predict the terms of the rate schedule that the PUCN will provide for recovery of this amount.
Peabody Western Coal Company
          NPC owns an 11%, 255 MW interest in the Navajo Generating Station (Navajo) which includes three coal-fired electrical generating units and is located in Northern Arizona. Other participants in Navajo, are the Salt River Project (Salt River), Arizona Public Service Company, Los Angeles Department of Water and Power, and Tucson Electric Power Company (together the Joint Owners).
          On October 15, 2004, coal supplier Peabody Western Coal Co. (Peabody) filed a complaint against the Joint Owners in Missouri State Court in St. Louis, seeking reimbursement of royalties and other costs and damages for alleged breach of the coal supply agreement for the Navajo plant. In January 2005, the Joint Owners were served and operating agent, Salt River, has engaged counsel and is defending the suit on behalf of the Joint Owners. NPC believes Peabody’s claims are without merit and intends to contest these.
          On February 10, 2005, the Joint Owners filed Notice of Removal of the complaint to the U. S. District Court, Eastern District of Missouri. On March 17, 2005, Peabody filed a motion to remand the case back to state court in St. Louis, Missouri. Joint Owners have filed a motion to dismiss the complaint for lack of jurisdiction. On May 30, 2006, the Federal District Court granted Peabody’s motion and remanded the case back to state court. On June 29, 2006, Joint Owners filed a new motion to dismiss with the Missouri state court and requested a stay of the discovery proceedings pending the ruling on the new motion. On September 21, 2006, the Missouri state court heard oral arguments on the motion to dismiss. Parties are in the process of completing briefing on the motions. A decision is not expected until early 2007. Several discovery motions remain pending. NPC is unable to predict the outcome of the decisions .
Sierra Pacific Power Company
Farad Dam
          SPPC owns 4 hydro generating plants (10.3 MW capacity) located in California that were to be included in the sale of SPPC’s water business for $8 million to the Truckee Meadows Water Authority (TMWA) in June 2001. The contract with TMWA requires that SPPC transfer the hydro assets in working condition. However, one of the four hydro generating plants, Farad 2.8 MW, has been out of service since the summer of 1996 due to a collapsed flume. While planning the reconstruction, a flood on the Truckee River in January 1997 destroyed the diversion dam. The current estimate to rebuild the diversion dam, if management decides to proceed, is approximately $20 million.

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          SPPC filed a claim with the insurers Hartford Steam Boiler Inspection and Insurance Co. and Zurich-American Insurance Company (Insurers) for the flume and dam. In December, 2003, SPPC sued the Insurers in the U.S. District Court for the District of Nevada on a coverage dispute relating to potential rebuild costs. In May 2005, Insurers filed a motion for summary judgment on the coverage issue, which has been denied. In October 2005, Insurers filed another (partial) summary judgment motion with respect to coverage, which the court also denied. On June 16, 2006, Insurers filed new summary judgment motions, which SPPC opposed. A settlement conference, initially scheduled for September 27, 2006, was canceled by the court. A trial date has been set for November 14, 2006. Management believes that it has a valid insurance claim and is likely to recover the costs to rebuild the dam through the courts or from other sources.
          Management has not recorded a loss contingency for this matter, as the loss, if any, can not be estimated at this time.
Piñon Pine
          In its 2003 General Rate Case, SPPC sought recovery of its unreimbursed costs associated with the Piñon Pine Coal Gasification Demonstration Project (the “Project”). The Project represented experimental technology tested pursuant to a Department of Energy (DOE) Clean Coal Technology initiative. Under the terms of the Project agreement, SPPC and DOE agreed to each fund 50% of construction costs of the Project. SPPC’s participation in the Project had received PUCN approval as part of SPPC’s 1993 integrated electric resource plan. While the conventional portion of the plant, a gas-fired combined cycle unit, was installed and performed as planned, the coal gasification unit never became fully operational. After numerous attempts to re-engineer the coal gasifier, the technology was determined to be unworkable. In its order of May 25, 2004, the PUCN disallowed $43 million of unreimbursed costs associated with the Project. SPPC filed a Petition for Judicial Review with the Second Judicial District Court of Nevada (District Court) in June 2004 (CV04-01434). On January 25, 2006, the District Court vacated the PUCN’s disallowance in SPPC’s 2003 General Rate Case and remanded the case back to the PUCN for further review as to whether the costs were justly and reasonably incurred (Order). On March 27, 2006, the PUCN appealed the Order to the Nevada Supreme Court (the “Supreme Court”) and filed a motion to stay the Order pending the appeal to the Supreme Court. On June 12, 2006, the District Court granted PUCN’s motion to stay the Order. On July 20, 2006, the Supreme Court issued an order questioning the finality of the District Court’s decision and thus whether it has jurisdiction over the appeal and invited the parties to brief this matter. The BCP and PUCN responded in early August. Parties are awaiting a decision by the Supreme Court. SPPC is unable to predict the outcome of the appeal.
Other Legal Matters
          SPR and its subsidiaries, through the course of their normal business operations, are currently involved in a number of other legal actions, none of which, in the opinion of management, is expected to have a significant impact on their financial positions, results of operations, or cash flows.
Regulatory Contingencies
Nevada Power Company
Mohave Generation Station (Mohave)
          In 2005, NPC’s ownership interest in Mohave comprised approximately 10% of NPC’s peak generation capacity. Southern California Edison (SCE) is the operating partner of Mohave and NPC owns approximately 14% of the facility.
          When operating, Mohave obtained all of its coal supply from a mine in northeast Arizona on lands of the Navajo Nation and the Hopi Tribe (the “Tribes”). This coal was delivered from the mine to Mohave by means of a coal slurry pipeline, which requires water that is obtained from groundwater wells located on lands of the Tribes in the mine vicinity.
          The Grand Canyon Trust and Sierra Club filed a lawsuit in the U.S. District Court, District of Nevada in February 1998 against the owners (including NPC) of the Mohave Generation Station (Mohave), alleging violations of the Clean Air Act regarding emissions of sulfur dioxide and particulates. An additional plaintiff, National Parks and Conservation Association, later joined the suit. In 1999, the plant owners and plaintiffs filed a settlement with the court, which resulted in a consent decree, approved by the court in November 1999. The consent decree established emission limits for sulfur dioxide and opacity and required installation of air pollution controls for sulfur dioxide, nitrogen oxides, and particulate matter. Pursuant to the decree, Mohave Units 1 and 2 ceased operations as of January 1, 2006 as the new emission limits were not met. Due to the lack of resolution regarding continual availability of the coal and water supply with the Tribes, the Owners did not proceed with the Consent Decree.
          On December 31, 2005, the Owners of the Mohave plant suspended operation, pending resolution of these issues. However, on June 19, 2006, majority stake holder SCE announced it would no longer participate in the efforts to return the plant to service. As a result, NPC decided it is not economically feasible to continue its participation in the project. On September 28, 2006, Salt River Project announced it remains interested in restarting the Mohave generating station with a new ownership group, tentatively increasing its stake in the plant. Salt River Project currently owns 20% of the Mohave

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facility. The co-tenancy agreement and the operating agreement between the Owners expired on July 1, 2006. The Owners are negotiating an extension of both agreements including a process that addresses how Owners may sell or assign their right, title, interest and obligations in Mohave.
          In NPC’s 2003 General Rate Case, the PUCN ordered the use of a regulatory asset to accumulate the costs and savings associated with Mohave in the event of its shutdown with recovery of any accumulated costs in a future rate case proceeding. NPC continues to recover the cost of Mohave in rates, as such, associated savings are currently recorded as a reduction in electric operating revenues-other. NPC continues to accumulate all costs and savings associated with the shut down of Mohave in Other Regulatory Assets which has a balance of $18.7 million as of September 30, 2006. In its next general rate case, NPC will seek further clarification on the regulatory treatment of Mohave. In the event any portion of Mohave is disallowed, NPC will have to evaluate the asset for impairment.
Contract Termination Liabilities
     At September 30, 2006 pursuant to the deferred energy accounting provisions of AB 369, included in NPC and SPPC deferred energy balances were approximately $82.4 million and $20.4 million of charges, respectively, for recovery in rates in future periods associated with the terminated power supply contracts. The Utilities will pursue recovery of the payments through future regulatory filings. To the extent that the Utilities are not permitted to recover any portion of these costs, the amounts not permitted would be charged as a current operating expense. A significant disallowance of these costs by the PUCN could have a material effect on the future financial position, results of operations, and cash flows of SPR, NPC, and SPPC.
NOTE 7.   EARNINGS PER SHARE (EPS) (SPR)
          The difference, if any, between basic EPS and diluted EPS is due to potentially dilutive common shares resulting from stock options, the employee stock purchase plan, performance and restricted stock plans, and the non-employee director stock plan.
          Emerging Issues Task Force, issue number 03-06, Participating Securities and the Two-Class Method under FASB Statement No. 128, requires companies to use the “two-class” method to calculate basic EPS, and the “if-converted” method to calculate diluted EPS if the result was dilutive. On September 8, 2005, SPR issued approximately 65.7 million shares of common stock in connection with the early conversion of its 7.25% Convertible Notes. The weighted average shares outstanding were used for the shares from conversion of notes for the three and nine month periods ending September 30, 2005.

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The following table outlines the calculation for earnings per share (EPS):
                                 
    Three months ended     Nine months ended  
    September 30,     September 30,  
    2006     2005     2006     2005  
Basic EPS
                               
Numerator ($000)
                               
Income from continuing operations
  $ 222,261     $ 62,127     $ 253,737     $ 63,636  
(Loss) from discontinued operations
  $ (15 )   $ (134 )   $ (72 )   $ (128 )
 
                               
Earnings applicable to common stock
  $ 222,246     $ 44,372     $ 251,324     $ 40,594  
Earnings applicable to convertible notes
  $     $ 16,646     $     $ 19,989  
 
                       
Earnings used for basic calculation
  $ 222,246     $ 61,018     $ 251,324     $ 60,583  
 
                       
 
                               
Denominator
                               
Weighted average number of common shares outstanding
    211,143,616       133,350,770       204,303,110       122,766,016  
Shares from conversion of notes
          50,026,486             60,450,634  
 
                       
 
    211,143,616       183,377,256       204,303,110       183,216,650  
 
                       
 
                               
Per Share Amounts
                               
Income from continuing operations
  $ 1.05     $ 0.34     $ 1.24     $ 0.35  
(Loss) from discontinued operations
  $     $     $     $  
 
                               
Earnings applicable to common stock
  $ 1.05     $ 0.33     $ 1.23     $ 0.33  
Earnings applicable to convertible notes
  $     $ 0.33     $     $ 0.33  
Diluted EPS
                               
Numerator ($000)
                               
Income from continuing operations
  $ 222,261     $ 62,127     $ 253,737     $ 63,636  
(Loss) from discontinued operations
  $ (15 )   $ (134 )   $ (72 )   $ (128 )
 
                               
Earnings applicable to common stock
  $ 222,246     $ 61,018     $ 251,324     $ 60,583  
 
                               
Denominator (1)
                               
Weighted average number of shares outstanding before dilution
    211,143,616       133,350,770       204,303,110       122,766,016  
Stock options
    86,145       46,329       78,774       40,434  
Executive long term incentive plan — restricted
    125,432       164,603       114,189       197,310  
Non-Employee Director stock plan
    32,576       34,514       28,798       28,717  
Employee stock purchase plan
    3,604       9,920       3,016       5,234  
Performance Shares
    250,448       119,578       216,936       119,578  
Convertible Stock
          50,026,486             60,450,634  
     
 
    211,641,821       183,752,200       204,744,823       183,607,923  
     
 
                               
Per Share Amounts
                               
Income from continuing operations
  $ 1.05     $ 0.34     $ 1.24     $ 0.35  
(Loss) from discontinued operations
  $     $     $     $  
 
                               
Earnings applicable to common stock
  $ 1.05     $ 0.33     $ 1.23     $ 0.33  
 
(1)   The denominator does not include stock equivalents resulting from the options issued under the nonqualified stock option plan for the three and nine months ended September 30, 2006 and 2005, due to conversion prices being higher than market prices for all periods. Under the nonqualified stock option plan for the three and nine months ended September 30, 2006, 953,995 and 940,287 shares, respectively, would be included and 364,688 and 633,902 shares, respectively, would be included for the three and nine months ended September 30, 2005. The denominator does not include stock equivalents resulting from the conversion of the Corporate PIES, for the three and nine months ended September 30, 2005. The amounts that would be included in the calculation, if the conversion price were met would be 17.3 million shares for each period.

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NOTE 8.   GOODWILL AND OTHER MERGER COSTS
          On April 27, 2006, the PUCN issued a decision on SPPC’s general rate case for the gas distribution business that included the recovery of goodwill and other merger costs allocated to SPPC resulting from the merger of SPR and NPC in 1999. In its decision, the PUCN affirmed that SPPC demonstrated merger savings exceeded merger costs, the requisite requirement for recovery of goodwill and merger costs. As a result of the PUCN decision, goodwill of approximately $18.9 million was reclassified as a regulatory asset and transferred from the financial statements of SPR to the financial statements of SPPC as of June 30, 2006. See Note 3 of the Condensed Notes to Consolidated Financial Statements, Regulatory Actions for more information regarding the SPPC general rate decision.
          The approximately $4 million of goodwill assigned to SPR’s unregulated operations were subject to impairment review under the provisions of SFAS No. 142, “Accounting for Goodwill, Other Intangible Assets.” SFAS No. 142 provides that an impairment loss shall be recognized if the carrying value of each reporting unit’s goodwill exceeds its fair value. For purposes of testing goodwill for impairment, a discounted cash flow model was developed for SPR’s unregulated businesses (TGPC and LOS) to determine the fair value of each reporting unit as of March 31, 2006. As a result, goodwill assigned to TGPC and LOS was determined not to be impaired.
          The change in the carrying amount of goodwill for the nine-month period ended September 30, 2006 and the allocation of the remaining balance is as follows (dollars in thousands):
                         
    Regulated     Unregulated        
    Operations     Operations     Total  
 
                       
 
                       
Balance as of December 31, 2005
  $ 18,888     $ 3,989     $ 22,877  
 
                       
Transfer to SPPC regulatory asset as of June 30, 2006
    (18,888 )           (18,888 )
 
                 
 
                       
Balance as of September 30, 2006
  $     $ 3,989     $ 3,989  
 
                 
 
                       
Goodwill Allocation to Reporting Units:
                       
 
                       
TGPC
  $     $ 3,520     $ 3,520  
LOS
          469       469  
 
                 
Balance as of September 30, 2006
  $     $ 3,989     $ 3,989  
 
                 
NOTE 9.   PENSION AND OTHER POST-RETIREMENT BENEFITS
          A summary of the components of net periodic pension and other postretirement costs for the nine months ended September 30 follows. This summary is based on a September 30 measurement date (dollars in thousands):
                                                                 
    For the three months ended September 30,     For the nine months ended September 30,  
                    Other Postretirement                     Other Postretirement  
    Pension Benefits     Benefits     Pension Benefits     Benefits  
    2006     2005     2006     2005     2006     2005     2006     2005  
         
Service cost
  $ 5,758     $ 4,620     $ 903     $ 820     $ 17,275     $ 13,861     $ 2,710     $ 2,461  
Interest cost
    9,157       8,062       2,629       2,465       27,470       24,186       7,887       7,394  
Expected return on plan assets
    (10,182 )     (9,042 )     (1,258 )     (903 )     (30,547 )     (27,125 )     (3,773 )     (2,708 )
Amortization of prior service cost
    473       428       31       16       1,419       1,285       94       47  
Amortization of Transition Obligation
                248       242                   743       727  
Amortization of net (gain)/loss
    2,445       1,614       1,180       1,059       7,334       4,841       3,539       3,176  
Special Termination Charges
                                               
         
 
Net periodic benefit cost
  $ 7,651     $ 5,682     $ 3,733     $ 3,699     $ 22,951     $ 17,048     $ 11,200     $ 11,097  
         
          In the third quarter ended September 30, the company made contributions to the pension plan and the other postretirement benefits plan in the amount of $16 million and $8.4 million, respectively. At the present time, there is no commitment for further contributions to either plan in 2006.

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NOTE 10.   DEBT COVENANT AND OTHER RESTRICTIONS
Dividends Restrictions Applicable to the Utilities
          Since SPR is a holding company, substantially all of its cash flow is provided by dividends paid to SPR by NPC and SPPC on their common stock, all of which is owned by SPR. Since NPC and SPPC are public utilities, they are subject to regulation by state utility commissions, which impose limits on investment returns or otherwise impact the amount of dividends that the Utilities may declare and pay. In the PUCN order for Dockets 05-10024 and 05-10025, dated February 28, 2006, a dividend restriction was instituted for both utilities. Under this restriction, the combined amount that NPC and SPPC may pay to SPR each year is limited to the amount of SPR’s annual debt service. This restriction will expire when the Utilities’ senior secured debt is rated investment grade by two of the three credit rating agencies. On September 20, 2006, Fitch upgraded the senior secured debt of NPC and SPPC to investment grade. In September 2006, Standard and Poor’s (“S&P”) upgraded the rating of NPC’s and SPPC’s senior secured debt from BB to BB+, one level below investment grade and Moody’s re-affirmed its rating for NPC’s and SPPC’s senior secured debt at Ba1, one level below investment grade.
          In addition, certain agreements entered into by the Utilities set restrictions on the amount of dividends they may declare and pay and restrict the circumstances under which such dividends may be declared and paid. The specific agreements entered into by the Utilities, restrictions on dividends contained in agreements to which NPC and SPPC are party, as well as specific regulatory limitations on dividends, are discussed in detail in the 2005 Form 10-K, Note 9, Debt Covenant Restrictions of the Notes to Consolidated Financial Statements. Upon the redemption of NPC’s Series E General and Refunding Mortgage Notes on October 16, 2006, all of the restrictive covenants contained in the Series E Notes were terminated. After SPPC redeemed all of its outstanding Class A, Series 1 Preferred Stock (see Note 11, Preferred Stock, below), it amended and restated its articles of incorporation which, among other things, eliminated the dividend restriction previously contained in the articles of incorporation.
          As of September 30, 2006, each Utility was able to pay dividends, subject to a cap, under the most restrictive test in its financing agreements; however, the total amount of dividends that the Utilities can pay to SPR under their financing agreements does not currently significantly restrict their ability to pay dividends because the maximum amount of dividends that can be paid under their respective financing agreements is greater than the amount that the Utilities can pay under the PUCN dividend restrictions. Were it not for the PUCN dividend restriction, NPC would be permitted to pay up to a maximum of $615 million to SPR, and SPPC would be permitted to dividend up to a maximum of $43 million to SPR, as of September 30, 2006.
NOTE 11.   PREFERRED STOCK
Sierra Pacific Power Company
Preferred Stock
          On June 1, 2006, SPPC redeemed $50 million of its Class A, Series 1 Preferred Stock. Two million shares of stock were redeemed at a redemption price per share of $25.683, plus accrued dividends at the redemption date of $0.4875 per share.
NOTE 12.   COMMON STOCK AND OTHER PAID-IN CAPITAL
Increased Authorized Shares
          On May 1, 2006, SPR’s shareholders approved an amendment to SPR’s Restated Articles of Incorporation to increase the number of authorized shares of SPR common stock by 100,000,000 shares for a total amount of 350,000,000 authorized shares.
          On August 15, 2006, SPR issued 20 million shares of its $1 par value common stock. Net proceeds from the issuance were $280.6 million. On August 15, 2006, SPR contributed capital to NPC of approximately $200 million. NPC used the proceeds to repay indebtedness under its revolving credit facility. SPR has invested the remaining proceeds in highly liquid short-term investments pending their use, which may be for additional capital contributions to NPC and/or SPPC, for repayment of a portion of SPR debt, or for general corporate purposes. As of September 30, 2006 SPR has 350 million shares of common stock authorized and 220.9 million shares of common stock issued and outstanding.
NOTE 13. SUBSEQUENT EVENTS
          On November 2, 2006, SPR announced that its’ wholly owned subsidiary Tuscarora Gas Pipeline Company (TGPC) has entered into an agreement to sell TGPC’s 50% interest in the Tuscarora Gas Transmission Company for $100 million. The sale, subject to customary closing conditions, is expected to close by year end 2006. The carrying amounts of the major classes of assets are as follows (dollars in thousands):
                 
    September 30,     December 31,  
    2006     2005  
Investments and other property, net
  $ 29,873     $ 30,898  
Total Assets
  $ 29,873     $ 30,898  
 
           

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ITEM 2.   MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Forward-Looking Statements and Risk Factors
           The information in this Form 10-Q includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements relate to anticipated financial performance, management’s plans and objectives for future operations, business prospects, outcome of regulatory proceedings, market conditions and other matters.
           Words such as “anticipate,” “believe,” “estimate,” “expect,” “intend,” “plan” and “objective” and other similar expressions identify those statements that are forward-looking. These statements are based on management’s beliefs and assumptions and on information currently available to management. Actual results could differ materially from those contemplated by the forward-looking statements. In addition to any assumptions and other factors referred to specifically in connection with such statements, factors that could cause the actual results of Sierra Pacific Resources (SPR), Nevada Power Company (NPC), or Sierra Pacific Power Company (SPPC) to differ materially from those contemplated in any forward-looking statement include, among others, the following:
  (1)   whether NPC and SPPC (the Utilities) will be able to continue to obtain fuel and power from their suppliers on favorable payment terms and favorable prices, particularly in the event of unanticipated power demands (for example, due to unseasonably hot weather), sharp increases in the prices for fuel and/or power or a ratings downgrade;
 
  (2)   unfavorable or untimely rulings in rate cases filed or to be filed by the Utilities with the Public Utility Commission of Nevada (PUCN), including the periodic applications to recover costs for fuel and purchased power that have been recorded by the Utilities in their deferred energy accounts, and deferred natural gas costs recorded by SPPC for its gas distribution business;
 
  (3)   the ability and terms upon which SPR, NPC and SPPC will be able to access the capital markets to support their requirements for working capital, including amounts necessary to finance deferred energy costs, as well as for construction and acquisition costs and other capital expenditures, particularly in the event of unfavorable rulings by the PUCN, a downgrade of the current debt ratings of SPR, NPC, or SPPC and/or adverse developments with respect to the Utilities’ power and fuel suppliers;
 
  (4)   whether NPC will be successful in obtaining PUCN approval to recover the outstanding balance of its other regulatory assets and other merger costs recorded in connection with the 1999 merger between SPR and NPC in a future general rate case;
 
  (5)   the timing of the PUCN’s decision regarding the time period NPC is to recover the $180 million of deferred energy costs that were disallowed in 2002 and were reinstated by the Nevada Supreme Court in July 2006;
 
  (6)   the timing and final outcome of the PUCN’s decision regarding the Utilities’ recovery of deferred energy costs associated with claims for terminated supplier contracts;
 
  (7)   wholesale market conditions, including availability of power on the spot market, which affect the prices the Utilities have to pay for power as well as the prices at which the Utilities can sell any excess power;
 
  (8)   unseasonable weather and other natural phenomena, which, in addition to affecting the Utilities’ customers’ demand for power, can have a potentially serious impact on the Utilities’ ability to procure adequate supplies of fuel or purchased power to serve their respective customers and on the cost of procuring such supplies;
 
  (9)   the final outcome of SPPC’s pending lawsuit in Nevada Supreme Court seeking to reverse the PUCN’s 2004 decision on SPPC’s 2003 General Rate Case disallowing the recovery of a portion of SPPC’s costs, expenses and investment in the Piñon Pine Project;
 
  (10)   changes in the rate of industrial, commercial, and residential growth in the service territories of the Utilities;
 
  (11)   whether the Utilities will be able to continue to pay SPR dividends under the terms of their respective financing and credit agreements, their regulatory order from the PUCN, and limitations imposed by the Federal Power Act;

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  (12)   employee workforce factors, including changes in collective bargaining unit agreements, strikes or work stoppages;
 
  (13)   the effect that any construction defects or accidents may have on our business, such as the risk of equipment failure, work accidents, fire or explosions, each of which may result in personal injury or loss of life, business interruptions, delay of in-service dates, property and equipment damage, pollution and environmental damage;
 
  (14)   changes in tax or accounting matters or other laws and regulations to which SPR or the Utilities are subject;
 
  (15)   the effect of existing or future Nevada, California or federal legislation or regulations affecting electric industry restructuring, including laws or regulations which could allow additional customers to choose new electricity suppliers or change the conditions under which they may do so;
 
  (16)   changes in the business or power demands of the Utilities’ major customers, including those engaged in gold mining or gaming, which may result in changes in the demand for services of the Utilities, including the effect on the Nevada gaming industry of the opening of additional Indian gaming establishments in California and other states;
 
  (17)   changes in environmental laws or regulations, including the imposition of significant new limits on emissions from electric generating facilities, such as requirements to reduce carbon dioxide (CO2) emissions in response to climate change legislation;
 
  (18)   unusual or unanticipated changes in normal business operations, including unusual maintenance or repairs;
 
  (19)   whether the Utilities can procure sufficient renewable energy sources in each compliance year to satisfy the Nevada Portfolio Standard;
 
  (20)   the effect that any future terrorist attacks, wars, threats of war, or epidemics may have on the tourism and gaming industries in Nevada, particularly in Las Vegas, as well as on the economy in general;
 
  (21)   future economic conditions, including inflation rates and monetary policy; and
 
  (22)   financial market conditions, including changes in availability of capital or interest rate fluctuations.
           Other factors and assumptions not identified above may also have been involved in deriving these forward-looking statements, and the failure of those other assumptions to be realized, as well as other factors, may also cause actual results to differ materially from those projected. SPR, NPC and SPPC assume no obligation to update forward-looking statements to reflect actual results, changes in assumptions or changes in other factors affecting forward-looking statements.

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EXECUTIVE OVERVIEW
          Management’s Discussion and Analysis of Financial Condition and Results of Operations explains the general financial condition and the results of operations for Sierra Pacific Resources (SPR) and its two primary subsidiaries, Nevada Power Company (NPC) and Sierra Pacific Power Company (SPPC), collectively referred to as the “Utilities” (references to “we,” “us” and “our” refer to SPR and the Utilities collectively), and includes the following for each of SPR, NPC and SPPC:
    Results of Operations
 
    Analysis of Cash Flows
 
    Liquidity and Capital Resources
 
    Regulatory Proceedings (Utilities)
 
    Recent Pronouncements
          SPR’s Utilities operate three regulated business segments: NPC electric, SPPC electric and SPPC natural gas service. Both Utilities provide electric service, and SPPC provides natural gas service. Other segment operations consist mainly of unregulated operations and the holding company operations. The Utilities are the principal operating subsidiaries of SPR and account for substantially all of SPR’s assets and revenues. SPR, NPC and SPPC are separate filers for SEC reporting purposes and accordingly, this discussion has been divided to reflect the individual filers (SPR, NPC and SPPC), except for discussions that relate to all three entities or the Utilities.
          The Utilities’ revenues and operating income are subject to fluctuations during the year due to the impacts of seasonal weather, rate changes, and customer usage patterns have on demand for electric energy and services. NPC is a summer peaking utility experiencing its highest retail energy sales in response to the demand for air conditioning. SPPC’s electric system peak typically occurs in the summer, with a slightly lower peak demand in the winter.
          NPC’s revenues for the nine months ended September 30, 2006 increased from the same period in 2005 primarily as a result of higher rates and to a lesser extent customer growth. Electric rates increased as a result of various deferred energy cases and Base Tariff Energy Rate (BTER) updates as discussed in the 2005 Form 10-K and later under Regulatory Proceedings . NPC’s net income for the nine months ended September 30, 2006 increased primarily as a result of the July 20, 2006, Nevada Supreme Court ruling which allows NPC to recover the approximate $180 million of the previously disallowed deferred energy costs, improved operating income (excluding the $180 million reinstatement) and the carrying charge associated with Lenzie.
          SPPC electric and gas revenues for the nine months ended September 30, 2006 increased primarily as a result of higher rates and to a lesser extent customer growth. Electric and gas rates increased as a result of various deferred energy cases and BTER updates as discussed in the 2005 Form 10-K and later under Regulatory Proceedings .
          SPR recognized net income of $253.7 million for the nine months ended September 30, 2006, compared to net income of $63.5 million for the same period in 2005. Net income increased primarily as a result of the July 20, 2006, Nevada Supreme Court ruling which allows NPC to recover the approximate $180 million of the previously disallowed deferred energy costs, an increase in operating income, a decrease in interest charges due to refinancing activities and the carrying charge associated with the Lenzie generating station.
Business Issues
          SPR continues to focus on a “back to the basics” strategy that emphasizes the Utilities’ core business. In order to concentrate more fully on its rapidly growing utility businesses, on July 10, 2006, SPR announced its decision to explore the potential sale of Tuscarora Gas Transmission Company (TGTC). On November 2, 2006, SPR announced that its’ wholly owned subsidiary Tuscarora Gas Pipeline Company (TGPC) has entered into an agreement to sell TGPC’s 50% interest in the Tuscarora Gas Transmission Company. The sale, subject to customary closing conditions, is expected to close by year end 2006.
          SPR’s and the Utilities’ strategies are aimed at owning more generating facilities, thereby reducing dependence on purchased power while at the same time diversifying fuel mix while the Utilities’ service areas continue to grow. The Utilities will continue to be subject to fluctuations in the volatile energy markets to the extent that the requirements of their customers are in excess of the Utilities’ owned generation, as well as the natural gas markets for SPPC.
          Growth in Nevada continues to be strong. There are many large hotel/casino developments under construction in the vicinity of the Las Vegas Strip (e.g. Project City Center, Echelon Place), as well as many new commercial and residential developments that will support this continuing growth.
          With the significant amounts of construction costs in the Utilities’ future, SPR and the Utilities will need to raise substantial amounts of capital to fund the expenditures. As a result, reducing the cost of capital by attaining investment grade ratings for the Utilities’ secured debt has been and continues to be a significant business focus in 2006. The Utilities continue to make progress toward this goal. In September 2006 Fitch upgraded the senior secured debt of NPC and SPPC to the minimum level for investment grade. Standard and Poor’s (“S&P”) and Moody’s currently rate NPC’s and SPPC’s senior secured debt at one level below investment grade.

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Significant Third Quarter 2006 Events
          On July 20, 2006, the Nevada Supreme Court ruled NPC is allowed to recover $180 million of the disallowed deferred energy costs and directed the District Court to remand the issue back to the PUCN to determine the rate schedule that will be used to recover this amount. In all other respects, the Nevada Supreme Court affirmed the District Court’s decision on the PUCN disallowance. In the third quarter of 2006, as a result of the Nevada Supreme Court decision, NPC recorded approximately $180 million , before tax , of the previously disallowed deferred energy costs in its Statements of Operations as “Reinstatement of Deferred Energy Costs.” NPC is unable to predict the terms of the rate schedule that the PUCN will provide for recovery of this amount.
          On August 15, 2006, SPR issued 20 million shares of its $1 par value common stock. Net proceeds from the issuance were $280.6 million. On August 15, 2006, SPR made a capital contribution to NPC for approximately $200 million. NPC used the proceeds to repay indebtedness under its revolving credit facility which was used for capital expenditures. SPR has invested the remaining proceeds in highly liquid short-term investments pending their use, which may be for additional capital contributions to NPC and/or SPPC, for repayment of a portion of SPR debt, or for general corporate purposes. As of September 30, 2006 SPR has 350 million shares of common stock authorized and 220.9 million shares of common stock issued and outstanding.
Generation Strategy
          In 2003, NPC and SPPC embarked on a strategy to build or acquire electric power plants in order to reduce their exposure to the energy markets, thereby reducing prices and volatility for its customers, and to provide an opportunity for increased earnings. In line with this strategy, in October 2004, upon PUCN approval, NPC purchased a partially constructed nominally rated 1,200 MW natural gas-fired high efficiency combined cycle power plant from Duke Energy (“Lenzie”).
          The PUCN granted NPC’s request that Lenzie be designated a critical facility and allowed a 2% enhancement above NPC’s authorized Return on Equity (ROE) to be applied to the rate base associated with the Lenzie construction costs expended after acquisition. The order allows for up to an additional 1%, or a total of 3% enhanced ROE if the two Lenzie generator units were brought on line on or before dates specified in the order. In January 2006, NPC declared Block 1 of Lenzie commercially operable and in April 2006 declared Block 2 commercially operable, both ahead of the dates specified by the PUCN to qualify for the additional enhancement.
          In January 2006, NPC completed the $208 million purchase of a 75% ownership interest in the Silverhawk Generating Facility (“Silverhawk”) from Pinnacle West Capital Corporation (“Pinnacle West”), Pinnacle West Energy Corporation (PWEC), a wholly-owned subsidiary of Pinnacle West, and GenWest, LLC. Silverhawk is a 560-megawatt, natural gas-fueled high efficiency combined-cycle electric generating facility located 20 miles northeast of Las Vegas.
          With the completion of Lenzie and an 80 MW combustion turbine at NPC’s Harry Allen site, plus the acquisition of Silverhawk, NPC more than doubled its owned capacity since the beginning of this year. As a result, NPC is less dependent upon the wholesale power markets for meeting the energy needs of its customers and expects to produce approximately 63% of its energy needs in 2006 from owned generation, up from about 39% last year.
          On December 14, 2005, the PUCN issued an order granting approval for SPPC to construct a 514 MW gas fired high efficiency combined cycle generator at the Tracy Plant. The PUCN also allowed SPPC to include construction work in progress balances in the rate base of any interim general rate cases, prior to the in-service date, and granted a 1.5% enhanced ROE for the estimated $421 million investment. In January 2006, SPPC signed contracts for construction of the unit and construction has begun. SPPC anticipates an in service date of June 2008. The unit will provide needed generation within SPPC’s control area to reliably serve the growing needs of Northern Nevada.
          Recently filed integrated resource plans (IRP), filed by the Utilities, requests PUCN approval to develop a major energy project located near Ely, Nevada (the “Ely Energy Center”). The project includes two 750 MW coal-fired units utilizing the latest, state-of-the-art, fully-environmental compliant, pulverized coal technologies, and the construction of a 250-mile transmission line to interconnect NPC and SPPC. If approved by the PUCN and subject to permitting requirements, it is anticipated the first coal plant would be operational in 2011 with the second unit in 2013. The total estimated capital expenditures associated with the two coal plants and the transmission line is approximately $3.7 billion. The IRP also requests approval to construct 600 MW of gas fired combustion turbines. The Utilities have also embarked on a strategy to invest in renewable energy that, along with contracts from third parties, will provide the opportunity for the Utilities to meet the Portfolio Standard as set forth by Nevada statute. A decision on the IRP by the PUCN is expected by mid-November 2006. See Regulatory Proceedings later for further details of the IRP.

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Management of Energy Risk
          The Utilities buy coal, natural gas, and oil to operate generating plants as well as buy wholesale power to meet the energy requirements of their customers. The Utilities also have invested in and maintain extensive transmission systems that allow the Utilities to move energy to meet customers’ needs. While NPC has greatly reduced its dependence on wholesale power markets to meet its generation customers’ demand, both Utilities continue to have a significant need to tap energy markets due to the fact that the Utilities’ ownership is insufficient to meet their customers’ energy needs. This situation exposes the Utilities to energy risk and uncertainty as to the Utilities’ cash flow requirements for fuel and wholesale power, the expense the Utilities will incur as a result of their energy procurement efforts, and the rates the Utilities need to recover those costs. Energy risk also encompasses reliability risk — the prospect that energy supplies will not be sufficient to fulfill customer requirements.
          The Utilities systematically manage and control each of the energy-related risks through three primary vehicles — organization and governance, energy risk management programs, and energy risk control practices.
          The Utilities, through the purchases and sale of specified financial instruments and physical products, maintain an energy risk management program that limits energy risk to levels consistent with an approved energy supply plan. The energy risk management program provides for the systematic identification, quantification, evaluation, and management of the energy risk inherent in the Utilities’ operations.
          The Utilities follow PUCN-approved energy supply plans that encompass the reliable and efficient operation of the Utilities’ owned generation, the procurement of all fuels and purchased power and resource optimization. The process includes assessments of projected loads and resources, assessments of expected market prices, evaluations of relevant supply portfolio options available to the Utilities, and evaluations of the risk attributable to those supply portfolio options. Financial instruments for economic hedging in conjunction with energy purchases and sales are also used to mitigate these risks.
Liquidity and Access to Capital Markets
          With volatile energy costs and substantial commitments to construction, SPR and the Utilities’ liquidity needs and access to capital markets is a significant business issue. As such, management continues to evaluate opportunities to refinance high yield debt at lower interest rates. Management has been and continues to be focused on returning the Utilities’ senior secured debt to investment grade credit quality. Significant amounts of capital may be necessary to fund the construction costs of new power plants and, as such, management may be required to meet such financial obligation with a combination of internally generated funds, the use of the Utilities’ revolving credit facilities, the issuance of long-term debt and, if necessary, capital contributions from SPR. If energy costs rise at a rapid rate, and the Utilities do not recover in a timely manner, the cost of fuel and purchased power, the Utilities may need to issue more debt to support their operating costs or may need to delay capital expenditures.
          So far in 2006, the Utilities completed major financing transactions of approximately $1.3 billion that lowered our interest costs, improved liquidity and extended maturities which include:
    issuance of $325 million of NPC’s 6.5% General and Refunding Mortgage Notes
 
    issuance of $370 million of NPC’s 6.65% General and Refunding Mortgage Notes, Series N, due 2036
 
    issuance of $210 million of NPC’s 5.95% General and Refunding Mortgage Notes, Series M, due 2016
 
    issuance of $92.5 million of various NPC Pollution Control Refunding Revenue Bonds
 
    increases to NPC’s and SPPC’s Revolving Credit facilities to $600 million and $350 million, respectively
 
    issuance of $300 million of SPPC’s 6.0% General and Refunding Mortgage Notes, Series M, due 2016
 
    redemptions of various NPC debt of approximately $667.8 million
 
    redemption and payments of various SPPC debt of approximately $249 million
          In addition, on October 27, 2006, SPPC announced notice of redemption for various tax-exempt bonds for approximately $91.3 million, to be redeemed on November 30, 2006.
Regulatory
          As is the case with most regulated entities, the Utilities are frequently involved in various regulatory proceedings. The Utilities are required to file for annual rate adjustments to provide recovery of their fuel and purchased power costs. They are also required to file rate cases every two years to adjust general rates that include their cost of service and return on investment in order to more closely align earned returns with those allowed by regulators. In addition, as necessary the Utilities can file for a change to their BTER rates to more closely match actual prices. The Utilities remain committed to maintaining a positive relationship with their regulators. Details regarding recently approved and pending rate cases are discussed below in Regulatory Proceedings and in the 2005 Form 10-K.

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SIERRA PACIFIC RESOURCES
RESULTS OF OPERATIONS
Sierra Pacific Resources (Consolidated)
          The operating results of SPR primarily reflect those of NPC and SPPC, discussed later. The Holding Company’s (stand alone) operating results included approximately $39.8 million and $64.4 million of interest costs for the nine months ended September 30, 2006 and 2005, respectively. The decrease in interest costs were primarily due to the conversion of SPR’s $300 million 7.25% Convertible Notes due 2010, the repurchase of the 7.93% Senior Notes associated with the Old PIES, using proceeds from SPR’s 6.75% Senior Notes, and the reduced interest rate of 7.803% on the Senior Notes associated with the New PIES. See Note 7, Long-Term Debt in the Notes to Consolidated Financial Statements in the 2005 Form 10-K.
          During the three months ended September 30, 2006, SPR had earnings applicable to common stock of approximately $222.2 million compared to $61.0 million for the same period in 2005. SPR’s consolidated results for the three months ended September 30, 2006 compared to the same period in 2005 increased primarily as a result of the July 20, 2006, Nevada Supreme Court ruling which allows NPC to recover the approximate $180 million of the previously disallowed deferred energy costs, for further discussion of the legal proceeding, see Note 6, Commitments and Contingencies of the Condensed Notes to Financial Statements. Additionally contributing to SPR’s increase in earnings applicable to common stock was improved operating income (excluding the $180 million reinstatement), the carrying charge on Lenzie and a charge recorded in 2005 for $54 million in early debt conversion fees associated with SPR’s convertible notes.
          During the nine months ended September 30, 2006, SPR had earnings applicable to common stock of approximately $251.3 million compared to $60.6 million for the same period in 2005. Earnings increased primarily due to the items noted above for the three months ended September 30, 2006 and a decrease in interest expense compared to the same period in the prior year.
ANALYSIS OF CASH FLOWS
          SPR’s consolidated net cash flows increased during the nine months ended September 30, 2006, when compared to the same period in 2005, primarily as a result of an increase in cash from financing and operating activities, offset partially by an increase in cash used for investing activities. SPR received net proceeds of approximately $280.6 million from the issuance of 20 million shares of common stock in August 2006, of which $200 million was transferred to NPC as a capital contribution.
          At various times within the first nine months of 2006, NPC borrowed a total of $710 million under its revolving credit facility and repaid a total of $810 million, including $150 million borrowed in 2005, using net proceeds from issuance of $905 million of NPC’s General Refunding Mortgage Notes, Series M, N and O and a $200 million capital contribution from SPR. The remainder of the proceeds, together with the draw on the credit facility and cash from operations, was utilized to redeem approximately $563 million of outstanding debt and to pay associated costs, and to finance net construction costs of $496 million. NPC also refinanced $92.5 million of Revenue Bonds with newly issued auction rate Revenue Bonds during 2006. During this period SPPC borrowed approximately $198 million under its revolving credit facility and also issued $300 million 6.0% General and Refunding Mortgage Notes Series M. The draw on the credit facility was used to retire approximately $198 million of SPPC’s Medium Term Notes Series A, B and C, and the net proceeds of the $300 million offering were used to pay off the amount borrowed under the revolving credit facility, to redeem $50 million of preferred stock and to pay associated costs, premium and dividends. The balance will be used to redeem $20 million in debt maturing in November 2006.
          Cash used for investing activities increased significantly when compared to the same period in 2005 due primarily to the acquisition of Silverhawk by NPC and for SPPC’s expansion of the Tracy Generating Station. This was offset by a reduction in construction at Lenzie which was placed in service in 2006.
          Cash from operations increased during the nine months ended September 30, 2006, when compared to the same period in 2005, due primarily to increases in deferred energy and general rates offset partially by increases in accounts receivables, a decrease in collections for deferred energy balances due to the ending of collection periods, and the settlement with Enron. Also offsetting the increase in operating cash was a reduction in accounts payable primarily associated with purchase power suppliers.

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LIQUIDITY AND CAPITAL RESOURCES (SPR CONSOLIDATED)
Overall Liquidity
          SPR’s consolidated operating cash flows are primarily derived from the operations of NPC and SPPC. The primary source of operating cash flows for the Utilities is revenues (including the recovery of previously deferred energy costs and natural gas costs) from sales of electricity and natural gas. Significant uses of cash flows from operations include the purchase of electricity and natural gas, other operating expenses and interest.
          On August 15, 2006, SPR issued 20 million shares of common stock. Net proceeds from the issuance were approximately $280.6 million. The majority of the proceeds, approximately $200 million, were contributed to NPC, which used the proceeds to repay indebtedness on its revolving credit facility. SPR has invested the remaining proceeds in highly liquid short-term investments pending their use, which may be for additional capital contributions to NPC and/or SPPC, for repayment of a portion of SPR debt, or for general corporate purposes.
                         
Available Liquidity as of September 30, 2006 (in millions)
    SPR   NPC   SPPC
     
Cash and Cash Equivalents
  $ 121.2     $ 46.1     $ 83.5  
Balance available on Revolving Credit Facility
    N/A       495.0       342.0  
 
                       
     
Total Available Liquidity 1
  $ 121.2     $ 541.1     $ 425.5  
     
 
1   On October 27, 2006, NPC paid $50 million on its’ revolving credit facility using cash on hand, as such, the available balance under the revolving credit facility as of October 30, 2006 is $545 million.
          SPR has approximately $51.8 million payable of debt service obligations for 2006 of which SPR paid approximately $47.9 million, through dividends from the Utilities during the nine months ended September 30, 2006. SPR has approximately $3.9 million payable of debt service obligations remaining during 2006, which SPR expects to meet through the payment of dividends by the Utilities to SPR. See Dividends from Subsidiaries below.
          SPR and the Utilities anticipate that they will be able to meet operating costs such as fuel and purchased power costs with internally generated funds, including the recovery of deferred energy and external borrowings. However, to fund capital requirements, as discussed in the 2005 Form 10-K, SPR and the Utilities may meet such financial obligations with a combination of internally generated funds, the use of the Utilities’ revolving credit facilities and if necessary, the issuance of long-term debt and/or capital contributions from SPR.
          During the nine months ended September 30, 2006, there were no material changes to contractual obligations as set forth in SPR’s 2005 Form 10-K for SPR (holding company). However, NPC and SPPC did enter into certain contractual obligations, which are discussed in their respective sections.
Capital Stock Transaction
          On May 1, 2006, SPR’s shareholders approved an amendment to SPR’s Restated Articles of Incorporation to increase the number of authorized shares of SPR common stock by 100,000,000 shares for a total amount of 350,000,000 authorized shares.
          On August 15, 2006, SPR issued 20 million shares of its $1 par value common stock. Net proceeds from the issuance were $280.6 million. On August 15 , 2006, SPR contributed capital to NPC for approximately $200 million. NPC used the proceeds to repay indebtedness under its revolving credit facility. SPR has invested the remaining proceeds in highly liquid short-term investments pending their use, which may be for additional capital contributions to NPC and/or SPPC, for repayment of a portion of SPR debt, or for general corporate purposes. As of September 30, 2006 SPR has 350 million shares of common stock authorized and 220.9 million shares of common stock issued and outstanding.
Factors Affecting Liquidity
Effect of Holding Company Structure
          As of September 30, 2006, SPR (on a stand-alone basis) has outstanding debt and other obligations including, but not limited to: $99 million of its unsecured 7.803% Senior Notes due 2012; $225 million of its 6.75% Senior Notes due 2017; and $335 million of its unsecured 8.625% Senior Notes due 2014.

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          Due to the holding company structure, SPR’s right as a common shareholder to receive assets of any of its direct or indirect subsidiaries upon a subsidiary’s liquidation or reorganization is junior to the claims against the assets of such subsidiary by its creditors and preferred stockholders. Therefore, SPR’s debt obligations are effectively subordinated to all existing and future claims of the creditors of NPC and SPPC and its other subsidiaries, including trade creditors, debt holders, secured creditors, taxing authorities and guarantee holders.
          As of September 30, 2006, SPR, NPC, SPPC, and their subsidiaries had approximately $4.2 billion of debt and other obligations outstanding, consisting of approximately $2.45 billion of debt at NPC, approximately $1.09 billion of debt at SPPC and approximately $660 million of debt at the holding company and other subsidiaries. Although SPR and the Utilities are parties to agreements that limit the amount of additional indebtedness they may incur, SPR and the Utilities retain the ability to incur substantial additional indebtedness and other liabilities.
Dividends from Subsidiaries
          Since SPR is a holding company, substantially all of its cash flow is provided by dividends paid to SPR by NPC and SPPC on their common stock, all of which is owned by SPR. Since NPC and SPPC are public utilities, they are subject to regulation by state utility commissions, which impose limits on investment returns or otherwise impact the amount of dividends that the Utilities may declare and pay. In the PUCN order for Dockets 05-10024 and 05-10025, dated February 28, 2006, a dividend restriction was instituted for both utilities. Under this restriction, the combined amount that NPC and SPPC may pay to SPR each year is limited to the actual cash necessary to service SPR’s debt for the year. This restriction will expire when the Utilities’ senior secured debt is rated investment grade by two of the three credit rating agencies. See “Credit Ratings” below for discussion of current ratings.
          In addition, certain agreements entered into by the Utilities set restrictions on the amount of dividends they may declare and pay and restrict the circumstances under which such dividends may be declared and paid. The specific agreements entered into by the Utilities, restrictions on dividends contained in agreements to which NPC and SPPC are party, as well as specific regulatory limitations on dividends, are discussed in Note 10, Debt Covenant and Other Restrictions in the Condensed Notes to Consolidated Financial Statements in this report and in Note 9, Debt Covenant Restrictions in the Notes to Consolidated Financial Statements in the 2005 Form 10-K.
          As of September 30, 2006, each Utility was able to pay dividends, subject to a cap, under the most restrictive test in its financing agreements; however, the total amount of dividends that the Utilities can pay to SPR under their financing agreements does not currently significantly restrict their ability to pay dividends because the maximum amount of dividends that can be paid under their financing agreements is greater than the amount that the Utilities can pay under the PUCN dividend restriction. As of September 30, 2006, NPC had paid $32 million in dividends to SPR and SPPC had paid $16 million in dividends to SPR. On October 24, 2006, NPC and SPPC declared a $17.3 million and $8.6 million common stock dividend, respectively, to SPR.
Limitations on Indebtedness
          The terms of SPR’s $335 million 8.625% Senior Unsecured Notes due March 15, 2014, $99 million 7.803% Senior Unsecured Notes due 2012 and $225 million 6.75% Senior Unsecured Notes due 2017 restrict SPR and any of its Restricted Subsidiaries (NPC and SPPC) from incurring any additional indebtedness unless:
          1. at the time the debt is incurred, the ratio of consolidated cash flow to fixed charges for SPR’s most recently ended four quarter period on a pro forma basis is at least 2 to 1, or
          2. the debt incurred is specifically permitted under the terms of the respective series of Senior Notes, which permits the incurrence of certain credit facility or letter of credit indebtedness, obligations incurred to finance property construction or improvement, indebtedness incurred to refinance existing indebtedness, certain intercompany indebtedness, hedging obligations, indebtedness incurred to support bid, performance or surety bonds, and certain letters of credit supporting SPR’s or any Restricted Subsidiary’s obligations to energy suppliers, or
          3. the indebtedness is incurred to finance capital expenditures pursuant to NPC’s 2003 Integrated Resource Plan and SPPC’s 2004 Integrated Resource Plan.
          If the respective series of Senior Notes are upgraded to investment grade by both Moody’s and S&P, these restrictions will be suspended and will no longer be in effect so long as the respective series of Senior Notes remain investment grade. As of September 30, 2006, SPR, NPC and SPPC would have been able to issue approximately $2.2 billion of additional indebtedness on a consolidated basis, assuming an interest rate of 7%, per the requirement stated in number 1 above.

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Credit Ratings
          Fitch upgraded the ratings of SPR and the two Utilities on September 20, 2006. The ratings for the senior secured debt of NPC and SPPC were increased to BBB-, the minimum level for investment grade. The senior unsecured debt for all three companies was also upgraded. The rating outlook for SPR, NPC and SPPC was revised from Positive to Stable. On September 22, 2006, S&P upgraded the rating of NPC’s and SPPC’s senior secured debt from BB to BB+, one level below investment grade. On September 27, 2006, Moody’s re-affirmed its rating for NPC’s and SPPC’s senior secured debt at Ba1, one level below investment grade.
          A security rating is not a recommendation to buy, sell or hold securities. Security ratings are subject to revision and withdrawal at any time by the assigning rating organization, and each rating should be evaluated independently of any other rating.
Cross Default Provisions
          None of the Utilities’ financing agreements contain a cross-default provision that would result in an event of default by that Utility upon an event of default by SPR or the other Utility under any of their respective financing agreements. Certain of SPR’s financing agreements, however, do contain cross-default provisions that would result in event of default by SPR upon an event of default by the Utilities under their respective financing agreements. In addition, certain financing agreements of each of SPR and the Utilities provide for an event of default if there is a failure under other financing agreements of that entity to meet payment terms or to observe other covenants that would result in an acceleration of payments due. Most of these default provisions (other than ones relating to a failure to pay other indebtedness) provide for a cure period of 30-60 days from the occurrence of a specified event, during which time SPR or the Utilities may rectify or correct the situation before it becomes an event of default. The primary cross-default provisions in SPR’s and the Utilities’ various financing agreements are summarized in the 2005 Form 10-K in “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Sierra Pacific Resources — Liquidity and Capital Resources (SPR Consolidated),” and remain unchanged from their description in the 2005 Form 10-K.
NEVADA POWER COMPANY
RESULTS OF OPERATIONS
          During the three months ended September 30, 2006, NPC recognized net income of approximately $211.1 million compared to $99.5 million for the same period in 2005. During the nine months ended September 30, 2006, NPC recognized net income of approximately $236.3 million compared to $112.4 million for the same period in 2005. NPC’s net income for the three and nine months ended September 30, 2006 increased significantly from prior periods primarily due to the reinstatement of deferred energy costs as discussed further in Note 6, Commitments and Contingencies, Nevada Power Company 2001 Deferred Energy Case in the Condensed Notes to Financial Statements. As of September 30, 2006, NPC had paid $32.0 million in common stock dividends to SPR. On October 24, 2006, NPC declared a $17.3 million common stock dividend to SPR.
          Gross margin is presented by NPC in order to provide information by segment that management believes aids the reader in determining how profitable the electric business is at the most fundamental level. Gross margin, which is a “non-GAAP financial measure” as defined in accordance with SEC rules, provides a measure of income available to support the other operating expenses of the business and is utilized by management in its analysis of its business.

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          The components of gross margin were (dollars in thousands):
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior Year %     2006     2005     Prior Year %  
Operating Revenues:
                                               
Electric
  $ 776,235     $ 675,181       15.0 %   $ 1,701,379     $ 1,480,699       14.9 %
 
Energy Costs:
                                               
Purchased Power
    289,975       393,414       -26.3 %     638,664       763,096       -16.3 %
Fuel for Power generation
    183,622       86,282       112.8 %     425,138       195,134       117.9 %
Deferral of energy costs-electric-net
    19,960       (76,899 )     -126.0 %     53,748       (32,965 )     -263.0 %
 
                                       
 
    493,557       402,797       22.5 %     1,117,550       925,265       20.8 %
 
                                       
 
Gross Margin before reinstatement of Deferred Energy Costs
  $ 282,678     $ 272,384       3.8 %   $ 583,829     $ 555,434       5.1 %
 
                                       
 
                                               
Reinstatement of Deferred Energy Costs 1
  $ 178,825     $       N/A     $ 178,825     $       N/A  
 
                                       
 
Gross Margin after reinstatement of Deferred Energy Costs
  $ 461,503     $ 272,384       69.4 %   $ 762,654     $ 555,434       37.3 %
 
                                       
 
1   Gross Margin for the three and nine months ended September 30, 2006 increased significantly from prior periods primarily due to the reinstatement of deferred energy costs as discussed further in Note 6, Commitments and Contingencies, Nevada Power Company 2001 Deferred Energy Case in the Condensed Notes to Financial Statements.
          The causes for significant changes in specific lines comprising the results of operations for NPC are discussed below (in thousands, except per unit amounts):
Electric Operating Revenues
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior Year %     2006     2005     Prior Year %  
Electric Operating Revenues:
                                               
Residential
  $ 402,746     $ 332,621       21.1 %   $ 811,100     $ 668,927       21.3 %
Commercial
    135,031       117,709       14.7 %     338,159       298,954       13.1 %
Industrial
    218,301       195,355       11.7 %     495,829       435,979       13.7 %
 
                                       
Retail revenues
    756,078       645,685       17.1 %     1,645,088       1,403,860       17.2 %
Other 1
    20,157       29,496       -31.7 %     56,291       76,839       -26.7 %
 
                                       
Total Revenues
  $ 776,235     $ 675,181       15.0 %   $ 1,701,379     $ 1,480,699       14.9 %
 
                                       
 
Retail sales in thousands of megawatt-hours (MWH)
    7,105       6,684       6.3 %     16,567       15,286       8.4 %
 
Average retail revenue per MWH
  $ 106.41     $ 96.60       10.2 %   $ 99.30     $ 91.84       8.1 %
 
1   Primarily wholesale.
          Nevada Power retail revenues increased for the three months and nine months ended September 30, 2006, as compared to the same periods in the prior year due to increases in retail rates, customer growth, and hotter weather. Retail rates increased as a result of NPC’s various BTER and Deferred Energy Cases (refer to “Regulatory Proceedings”). Retail customers increased by 4.8% and 5.0% for the three months ended and the nine months ended September 30, 2006 respectively.

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          Based on NPC’s projected customer forecast, NPC expects retail electric customers in the Clark County area to continue to grow. On June 28, 2006, NPC announced that its electric rates are expected to remain stable until 2007 following the approval of a stipulation agreement by the PUCN. The approved agreement allows full recovery by NPC of its incurred fuel and purchase power costs, but did not affect rates on August 1, 2006, because of previously approved rate changes. For further discussion on the various cases see Regulatory Proceedings, later.
          Electric Operating Revenues — Other decreased for the three months and nine months ended September 30, 2006 compared to the same periods in 2005, primarily due to revenues associated with Mojave which have been reclassified to Other Regulatory Assets as a result of the shut down of the Mohave Generating Station (“Mohave”). For further discussion of Mohave refer to Note 6, Commitments and Contingencies in the Condensed Notes to Financial Statements. Also contributing to the decrease were decreases in energy usage by public authority customers due to the transitioning to distribution-only service.
Purchased Power
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
 
                                               
Purchased Power
  $ 289,975     $ 393,414       -26.3 %   $ 638,664     $ 763,096       -16.3 %
 
                                               
Purchased Power in thousands of MWhs
    3,441       4,834       -28.8 %     8,363       10,403       -19.6 %
Average cost per MWh of Purchased Power
  $ 84.27     $ 81.38       3.6 %   $ 76.37     $ 73.35       4.1 %
          NPC’s purchased power costs declined for the three months and nine months ended September 30, 2006, compared to the same period in 2005, primarily due to an increase in internal generation. Earlier this year, NPC began operating Silverhawk and Lenzie. These stations provided generated energy, reducing the need for purchased power during the nine months ended September 30, 2006 compared to the same period in 2005. Average costs per megawatt hour increased for the three and nine months ended September 30, 2006 compared to the same period in 2005, primarily due to fixed capacity charges and a decrease in megawatt hours.
Fuel For Power Generation
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
 
                                               
Fuel for Power Generation
  $ 183,622     $ 86,282       112.8 %   $ 425,138     $ 195,134       117.9 %
 
                                               
Thousands of MWhs generated
    4,099       2,286       79.3 %     9,314       6,021       54.7 %
Average cost per MWh of Generated Power
  $ 44.80     $ 37.74       18.7 %   $ 45.65     $ 32.41       40.8 %
          Fuel for power generation increased for the three and nine months ended September 30, 2006 compared to the same period in 2005 due to several factors:
    With the addition of Silverhawk and Lenzie it was more economical for NPC to rely on its own generation rather than the purchase of power. As such, the increase in volume of MWh’s generated increased significantly compared to the same periods in the prior year.
 
    The shutdown of Mohave as of the beginning of the year increased the cost per MWh of generated power. Although Silverhawk and Lenzie are highly efficient generation stations, the cost of coal is substantially lower than the cost of natural gas. Mohave generation during the nine months ended September 30, 2005 represented approximately 18% of total generation.

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    Hedging instruments purchased when gas prices were escalating as a result of the 2005 hurricanes in the southern United States increased fuel for power generation costs. The settlement of these instruments during the second and third quarters of 2006 negatively impacted the average cost per MWh as natural gas prices were decreasing during this period.
Deferred Energy Costs — Net
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
 
                                               
Reinstatement of deferred energy costs
  $ (178,825 )   $       N/A     $ (178,825 )   $       N/A  
Deferred energy costs — net
  $ 19,960     $ (76,899 )     -125.9 %   $ 53,748     $ (32,965 )     -263.0 %
          Reinstatement of deferred energy costs for the three and nine months ended September 30, 2006 represents the July 20, 2006 decision by the Nevada Supreme Court which ruled NPC is allowed to recover $180 million of the disallowed deferred energy costs and directed the District Court to remand the issue back to the PUCN to determine the rate schedule that will be used to recover this amount. In all other respects, the Nevada Supreme Court affirmed the District Court’s decision on the PUCN disallowance. As a result of the Nevada Supreme Court decision, NPC recorded approximately $180 million , before tax , of the previously disallowed deferred energy costs in its Statements of Operations as “Reinstatement of Deferred Energy Costs.” NPC is unable to predict the terms of the rate schedule that the PUCN will provide for recovery of this amount.
          Deferred energy costs — net represents the difference between actual fuel and purchased power costs incurred during the period and amounts recoverable through current rates. To the extent actual costs exceed amounts recoverable through current rates, the excess is recognized as a reduction in costs. Conversely to the extent actual costs are less than amounts recoverable through current rates, the difference is recognized as an increase in costs. Deferred energy costs — net also include the current amortization of fuel and purchased power costs previously deferred. Reference Note 1, Summary of Significant Accounting Policies, Deferral of Energy Costs of the Condensed Notes to Financial Statements for further detail of deferred energy balances.
          Amounts include amortization of deferred energy costs for the three months ending September 30, 2006 and 2005 of $43.4 million and $36.3 million, respectively; and under-collections of amounts recoverable in rates of $23.5 million and $113.2 million, respectively. Amounts for the nine months ended September 30, 2006 and 2005 include amortization of deferred energy costs of $95.8 million and $108.5 million, respectively; and under-collections of amounts recoverable in rates of $42.1 million and $141.4 million, respectively.
Allowance for Funds Used During Construction (AFUDC)
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior Year %     2006     2005     Prior Year %  
 
                                               
Allowance for other funds used during construction
  $ 1,986     $ 5,119       -61.2 %   $ 10,140     $ 13,017       -22.1 %
 
                                               
Allowance for borrowed funds used during construction
  $ 1,978     $ 6,362       -68.9 %   $ 10,050     $ 16,154       -37.8 %
 
                                       
 
  $ 3,964     $ 11,481       -65.5 %   $ 20,190     $ 29,171       -30.8 %
 
                                       
          AFUDC for NPC is lower for the three months and nine months ended September 30, 2006 compared to the same periods in 2005 due to a decrease in Construction Work in Progress (CWIP). The decrease is primarily due to the completion of Blocks 1 and 2 of Lenzie and Harry Allen Unit 4.

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Other (Income) and Expenses
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
 
                                               
Other operating expense
  $ 54,927     $ 55,760       -1.5 %   $ 156,765     $ 155,971       0.5 %
Maintenance expense
  $ 15,719     $ 10,624       48.0 %   $ 44,307     $ 43,976       0.8 %
Depreciation and amortization
  $ 34,955     $ 31,258       11.8 %   $ 104,076     $ 92,421       12.6 %
Interest charges on long-term debt
  $ 43,355     $ 38,587       12.4 %   $ 132,285     $ 121,729       8.7 %
Interest charges-other
  $ 4,537     $ 4,204       7.9 %   $ 11,828     $ 12,775       -7.4 %
Carrying charge for Lenzie
  $ (10,040 )   $       N/A     $ (23,206 )   $       N/A  
Interest accrued on deferred energy
  $ (4,786 )   $ (5,557 )     -13.9 %   $ (17,695 )   $ (14,298 )     23.8 %
Other income
  $ (4,080 )   $ (5,238 )     -22.1 %   $ (12,831 )   $ (17,600 )     -27.1 %
Other expense
  $ 2,050     $ 1,608       27.5 %   $ 6,353     $ 5,001       27.0 %
          Other operating expense for the three month period ending September 30, 2006 compared to the same period in 2005 decreased primarily due to lower operating expenses for Clark and Mohave as well as Enron legal fees incurred in 2005; partially offset by higher operating costs for Lenzie and Silverhawk.
          Other operating expense for the nine month period ending September 30, 2006 compared to the same period in 2005 increased primarily due to higher operating costs for Lenzie and Silverhawk; partially offset by lower operating expenses for Clark and Mohave and higher legal fees incurred in 2005.
          The increase in maintenance expense for the three month period ending September 30, 2006 compared to the same period in 2005 is due to the addition of Lenzie and Silverhawk in 2006 and forced outages at Reid Gardner Units 1, 2 and 3 due to tube leaks; partially offset by lower maintenance costs for Mohave.
          The increase in maintenance expense for the nine month period ending September 30, 2006 compared to the same period in 2005 is due to the addition of Lenzie and Silverhawk in 2006; partially offset by lower maintenance costs for Mohave.
          Depreciation and amortization expenses were higher for the three months and the nine months ended September 30, 2006 compared to the same period in 2005 primarily as a result of increases to plant-in-service. The increase is primarily due to the purchase of Silverhawk and completion of the Harry Allen Unit IV.
          Interest charges on Long-Term Debt increased during the three months and nine months ended September 30, 2006, compared to the same periods in 2005 primarily due to the issuance in January 2006 of $210 million Series M, General and Refunding Mortgage Notes and the use of the Revolving Credit facility. The $210 million was issued to fund the acquisition of the Silverhawk Generating Facility. Interest expense related to this issuance was approximately $8.7 million. NPC’s use of the Revolving Credit Facility increased in 2006 primarily due to increased capital expenditures related to the Lenzie Generating Station. Interest expense for the Revolving Credit Facility was approximately $12.3 million compared to $1.9 million in the prior year.
          The increase in interest charges on long-term debt was partially offset by a reduction in average interest rates as a result of financing transactions aimed at replacing high yield debt with lower interest rate debt. See Note 4, Long-Term Debt in the Condensed Notes to Financial Statements for additional information regarding long-term debt.
          The change in interest charges-other for the three months and nine months ended September 30, 2006, when compared to the same periods in 2005, were due to higher costs related to new debt issues and redemptions as discussed above, offset partially by settlements in 2005 with terminated energy suppliers which reduced associated interest costs.
          NPC’s interest accrued on deferred energy for the three months and nine months ended September 30, 2006 changed when compared to the same periods in 2005, due to changes to deferred energy asset balances, excluding deferred energy assets of $179 million due to Nevada Supreme Court decision reversing the deferred energy costs disallowance. See Note 3, Regulatory Actions of the Condensed Notes to Financial Statements for further discussion of deferred energy accounting issues. See Note 6, Commitments and Contingencies of the Condensed Notes to Financial Statement for further discussion of the Nevada Supreme Court Decision.

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          Carrying charges on Lenzie for the three and nine month periods ended September 30, 2006 of $10 million and $23.2 million, respectively, represent carrying charges earned on the incurred debt component of the acquisition and construction costs of the completed Lenzie Generating Station. The PUCN authorized NPC to accrue a carrying charge for the cost of acquisition and construction until the plant is included in rates. See Note 1 of the Condensed Notes to Financial Statements for discussion of the accounting for the carrying charge for Lenzie.
          Other income decreased during the three months and nine months ended September 30, 2006 compared to the same period in 2005 primarily due to the lower amortization of gains associated with disposition of SO2 allowances and the expiration of the amortization associated with the disposition of property.
          Other expense increased during the three months and nine months ended September 30, 2006 compared to the same period in 2005 due to increases in pension costs, donations, lobbying and advertising expenses.
ANALYSIS OF CASH FLOWS
          NPC’s cash flows increased during the nine months ended September 30, 2006, when compared to the same period in 2005, due primarily to an increase in cash from financing and operating activities offset partially by increased use of cash in investing activities.
          At various times within the first nine months of 2006, NPC borrowed a total of $710 million under its revolving credit facility and repaid a total of $810 million, including $150 million borrowed in 2005, using net proceeds of issuance of $905 million of NPC’s General Refunding Mortgage Notes, Series M, N and O and a $200 million capital contribution from SPR. The remainder of the proceeds, together with the draw on the credit facility and cash from operations, was utilized to redeem approximately $563 million of outstanding debt and to pay associated costs, and to finance net construction costs of $496 million. NPC also paid dividends to SPR of approximately $32 million and refinanced $92.5 million of Revenue Bonds with newly issued auction rate Revenue Bonds during 2006.
          Cash used by investing activities increased when compared to the same period in 2005 due primarily to the acquisition of Silverhawk, offset by a reduction in spending at Lenzie which was placed in service in 2006.
          Cash from operations decreased during the nine months ended September 30, 2006, when compared to the same period in 2005, due primarily to increases in accounts receivable due to unseasonably warm weather, a decrease in collections for deferred energy balances due to the ending of collection periods, and the settlement with Enron. In addition, the decrease in cash was due to a reduction in accounts payable primarily associated with purchase power suppliers. These decreases in cash were partially offset by rate increases for deferred energy.
LIQUIDITY AND CAPITAL RESOURCES (NPC)
Overall Liquidity
          NPC’s primary source of operating cash flows are electric revenues, including the recovery of previously deferred energy costs. Significant uses of cash flows from operations include the purchase of electricity and natural gas, other operating expenses and the payment of interest on NPC’s outstanding indebtedness. On August 15, 2006, SPR issued 20 million shares of common stock. Net proceeds from the issuance were $280.6 million. On August 15, 2006, SPR contributed capital to NPC for approximately $200 million. NPC used the proceeds to repay indebtedness under its revolving credit facility.
         
Available Liquidity as of September 30, 2006 (in millions)
    NPC  
Cash and Cash Equivalents
  $ 46.1  
Balance available on Revolving Credit Facility
    495.0  
 
     
 
Total Available Liquidity 1
  $ 541.1  
 
     
 
1   On October 27, 2006, NPC paid $50 million on its’ revolving credit facility using cash on hand, as such, the available balance under the revolving credit facility as of October 30, 2006, is $545 million.
          NPC anticipates that it will be able to meet operating costs, such as fuel and purchased power costs with internally generated funds, including the recovery of deferred energy and external borrowings. However, to fund capital requirements, as discussed below, NPC may be required to meet such financial obligations with a combination of internally generated funds, the use of its revolving credit facility and if necessary, the issuance of long-term debt and/or capital contributions from SPR.

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          During the nine months ended September 30, 2006, there were no material changes to the contractual obligations described in NPC’s 2005 Form 10-K except for a long-term maintenance contract for the Silverhawk Generating Station and certain financing transactions as discussed below.
Financing Transactions
Pollution Control Refunding Revenue Bonds, Series 2006, 2006A and 2006B
          On August 17, 2006, on behalf of NPC, Clark County, Nevada (Clark County) issued $39.5 million aggregate principal amount of its Pollution Control Refunding Revenue Bonds, Series 2006, due January 1, 2036. On the same date, on behalf of NPC, Coconino County, Arizona Pollution Control Corporation (Coconino County) issued $40 million aggregate principal amount of its Pollution Control Refunding Revenue Bonds, Series 2006A, due September 1, 2032, and $13 million aggregate principal amount of its Pollution Control Refunding Revenue Bonds, Series 2006B, due March 1, 2039.
          In connection with the issuance of these Bonds, NPC entered into financing agreements with Clark County and Coconino County, pursuant to which Clark County and Coconino County will lend the proceeds from the sales of the bonds to NPC. NPC’s payment obligations under the financing agreement are secured by NPC’s General and Refunding Mortgage Notes, Series P.
          The interest rates of the Bonds will be determined by an auction. The method of determining the interest rate on the Bonds may be converted from time to time so that such Bonds would thereafter bear interest at a daily, weekly, flexible, auction or term rate as designated.
          The proceeds of the offering were used to refund the following, all of which were previously issued for the benefit of NPC:
    $39.5 million principal amount of Clark County’s Pollution Control Refunding Revenue Bonds, Series 1992B,
 
    $20 million principal amount of Coconino County’s Pollution Control Revenue Bonds, Series 1996,
 
    $20 million principal amount of Coconino County’s Pollution Control Revenue Bonds, Series 1997B, and
 
    $13 million principal amount of Coconino County’s Pollution Control Revenue Bonds, Series 1995E.
General and Refunding Mortgage Notes, Series O
          On May 12, 2006, NPC issued and sold $250 million in aggregate principal amount of 6.5% General and Refunding Mortgage Notes, Series O, due 2018. The Series O Notes were issued with registration rights. Proceeds of the offering, together with available cash, were utilized to:
    fund the early redemption of $78 million aggregate principal amounts of NPC’s 7.2% Industrial Development Revenue Bonds, Series 1992 C, due 2022,
 
    fund the early redemption, in June 2006, of approximately $72.2 million aggregate principal amount of NPC’s 7.75% Junior Subordinated Debentures due 2038 (when the debentures were repaid upon redemption, the proceeds from the repayment were used to simultaneously redeem an equal amount of the 7.75% Cumulative Quarterly Preferred Securities of NVP Capital III, a wholly-owned subsidiary of NPC),
 
    repay amounts outstanding under NPC’s revolving credit facility, and
 
    pay related fees from the offering, and for general corporate purposes.
          On June 26, 2006, NPC issued an additional $75 million in aggregate principal amount of its 6.5% General and Refunding Mortgage Notes, Series O, as part of the same series as the original Notes. The aggregate principal amount of 6.5% General and Refunding Mortgage Notes, Series O, due 2018, outstanding is $325 million as of September 30, 2006. The proceeds from the second issuance, along with the proceeds from an offering of $120 million of NPC’s 6.65% General and Refunding Mortgage Notes, Series N, due 2036 (described below) were used to pay the total consideration for the tender offer for the 10.875% General and Refunding Mortgage Notes, Series E, described below. The remaining proceeds were used to pay related fees and expenses from this offering, and for general corporate purposes.

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General and Refunding Mortgage Notes, Series N
          On April 3, 2006, NPC issued and sold $250 million of its 6.65% General and Refunding Mortgage Notes, Series N, due April 1, 2036. The Series N Notes were issued with registration rights. Proceeds of the offering, together with available cash, were utilized to:
    fund the early redemption of $35 million aggregate principal amount of NPC’s 8.50% Series Z First Mortgage Bonds due 2023 plus approximately $1 million of associated redemption premiums,
    fund the early redemption of $105 million aggregate principal amount of 6.70% Industrial Development Revenue Bonds, due 2022, and
    fund the early redemption of approximately $122.5 million aggregate principal amount of NPC’s 8.20% Junior Subordinated Debentures due 2037 (when the debentures were repaid upon redemption, the proceeds from the repayment were used to simultaneously redeem an equal amount of the 8.20% Cumulative Quarterly Preferred Securities of NVP Capital I, a wholly-owned subsidiary of NPC).
          On June 26, 2006, NPC issued an additional $120 million in aggregate principal amount of its 6.65% General and Refunding Mortgage Notes, Series N, as part of the same series as the original Notes. The aggregate principal amount of 6.65% General and Refunding Mortgage Notes, Series N, due 2036, outstanding is $370 million as of September 30, 2006. The proceeds from the second issuance, along with the proceeds from an offering of $75 million of NPC’s 6.5% General and Refunding Mortgage Notes, Series O, due 2018 (described above) were used to pay the total consideration for the tender offer on the 10.875% General and Refunding Mortgage Notes, Series E, described below.
Tender Offer for General and Refunding Mortgage Notes, Series E
          On June 1, 2006, NPC commenced a tender offer for all of its 10.875% General and Refunding Mortgage Notes, Series E, due 2009. In conjunction with that offer, NPC solicited the consent of holders of a majority in aggregate principal amount of the Notes to eliminate substantially all of the restrictive covenants contained in the officer’s certificate governing the Notes. Approximately $150 million of $162.5 million Series E Notes outstanding were validly tendered and accepted by NPC. Those holders who tendered the Notes and delivered their consents by June 14, 2006 were entitled to receive a consent payment of $30 per $1000 principal amount of Notes, plus tender consideration for each $1,000 principal amount of Notes validly tendered. Those holders who tendered the Notes after June 14, 2006, but prior to June 28, 2006, were entitled to receive the tender consideration only. This tender consideration was $1,038.45 in cash plus accrued and unpaid interest up to the June 29, 2006 settlement date per $1,000 principal amount of the Notes tendered. Proceeds from the June 26, 2006 issuance of Series N and Series O Notes (discussed above) were used to fund the tender offer. The total consideration (including the consent payment and accrued interest) paid on June 29, 2006 was approximately $163.6 million. At September 30, 2006, approximately $12.6 million of the Series E Notes remained outstanding. On October 16, 2006, NPC redeemed the remaining $12.6 million aggregate principal amount of the Series E Notes, plus accrued interest, using available cash on hand.
Revolving Credit Facility
          On April 19, 2006, NPC increased the size of its second amended and restated revolving credit facility expiring 2010 to $600 million. The facility will provide additional liquidity for increased commodity prices and temporary bridge financing of capital expenditures. As of September 30, 2006, NPC had $55 million of letters of credit outstanding and had borrowed $50 million under the revolving credit facility. As of October 30, 2006, NPC had $55 million of letters of credit outstanding and had no amounts borrowed under the revolving credit facility.
          The NPC Credit Agreement contains two financial maintenance covenants. The first requires that NPC maintain a ratio of consolidated indebtedness to consolidated capital, determined as of the last day of each fiscal quarter, not to exceed 0.68 to 1. The second requires that NPC maintain a ratio of consolidated cash flow to consolidated interest expense, determined as of the last day of each fiscal quarter for the period of four consecutive fiscal quarters, not to be less than 2.0 to 1. As of September 30, 2006, NPC was in compliance with these covenants.
          The NPC Credit Agreement provides for an event of default if there is a failure under NPC’s other financing agreements to meet certain payment terms or to observe other covenants that would result in an acceleration of payments due.
          The NPC Credit Agreement places certain restrictions on debt incurrence, liens and dividends. These restrictions are discussed in Note 9, Debt Covenant Restrictions, in the Notes to Consolidated Financial Statements in the 2005 Form 10-K.
General and Refunding Mortgage Notes, Series M
          On January 18, 2006, NPC issued and sold $210 million of its 5.95% General and Refunding Mortgage Notes, Series M, due March 15, 2016. The Series M Notes were issued with registration rights. On February 10 , 2006 the net proceeds of the issuance plus available cash were used to repay $210 million of amounts outstanding under NPC’s revolving credit facility, which were borrowed to finance the purchase of a 75% ownership interest in the Silverhawk Generating Facility.

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Factors Affecting Liquidity
Limitations on Indebtedness
          Certain factors impact NPC’s ability to issue debt:
  1.   Financing Authority from the PUCN; In February 2006 NPC received PUCN authorization to enter into financings of $1.78 billion, which amount included $600 million for the revolving credit facility (described above). NPC has issued approximately $100 million of the new debt authorized under the PUCN Order. NPC’s only remaining authority under this PUCN Order allows NPC to refinance its existing debt and to use its $600 million revolving credit facility.
  2.   Limits on Bondable Property; To the extent that NPC has the ability to issue debt under the most restrictive covenants in its financing agreements and has financing authority to do so from the PUCN, NPC’s ability to issue secured debt is still limited by the amount of bondable property or retired bonds that can be used to issue debt under the General and Refunding Mortgage Indenture. As of September 30, 2006, NPC had the capacity to issue $599 million of General and Refunding Mortgage Securities.
  3.   Financial Covenants in its financing agreements.
          The terms of certain SPR debt further prohibit NPC and SPPC from incurring additional indebtedness unless certain conditions have been met. See SPR’s Limitations on Indebtedness for details of these restrictions. In addition to the SPR debt, the terms of NPC’s Series G Notes, which mature in 2013, NPC’s Series I Notes, which mature in 2012, NPC’s Series L Notes, which mature in 2015, and NPC’s Second Amended and Restated Revolving Credit Facility restrict NPC from incurring any additional indebtedness unless certain covenants are satisfied. See Note 10, Debt Covenant and Other Restrictions of the Notes to Financial Statements in this report and Note 9, Debt Covenant Restrictions of the Notes to Financial Statements in the 2005 Form 10-K. If NPC’s Series G Notes, Series I Notes, or the Series L Notes are upgraded to investment grade by both Moody’s and S&P, these restrictions will be suspended and will no longer be in effect so long as the applicable series of securities remains investment grade.
          As of September 30, 2006, the financial covenants under the revolving credit facility, which are more restrictive than the Series G, I and L Notes restrictions, would allow NPC to issue up to $2.1 billion of additional debt. The covenant limitations of certain SPR debt place a cap on additional indebtedness, on a consolidated basis, including SPPC and NPC, of $2.2 billion as of September 30, 2006. Therefore, NPC would not be materially limited by SPR’s cap on additional indebtedness. However, since NPC currently has no PUCN authority to issue new debt, NPC is limited to borrowing under its credit facility. As of October 30, 2006, the balance available under the credit facility is $545 million.
          Since SPR’s debt covenant limitations are calculated on a consolidated basis, SPR’s debt covenant limitations may allow for higher or lower borrowings than $2.2 billion, depending on the Utilities’ combined usage of their respective revolving credit facilities at the time of the covenant calculation.
Discharge of NPC’s First Mortgage Indenture
          On August 17, 2006, following the refunding of the $39.5 million aggregate principal amount of Pollution Control Refunding Revenue Bonds (PCRBs), Series 1992B, (see above) the first mortgage bonds which secured the PCRBs were retired.
          On August 30, 2006, NPC exchanged $115 million in aggregate principal amount of First Mortgage Bonds, Series BB and Series CC, for $115 million in aggregate principal amount of General and Refunding Mortgage Bonds, Series Q. The first mortgage bonds had been issued as security for the $100 million Clark County, Nevada Industrial Development Refunding Revenue Bonds, Series 2000A, and the $15 million Clark County, Nevada Pollution Control Refunding Revenue Bonds, Series 2000B.
          With the conclusion of these two transactions, NPC had no first mortgage bonds outstanding as of August 30, 2006. On September 13, 2006, NPC’s First Mortgage Indenture was discharged and released by the trustee, Deutsche Bank Trust Company Americas. As of that date, NPC’s General and Refunding Mortgage Indenture became the first priority lien on substantially all of NPC’s properties in Nevada.

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Limitations on Ability to Issue General and Refunding Mortgage Bonds
          As of September 30, 2006, $2.7 billion of NPC’s General and Refunding Mortgage Securities were outstanding. As mentioned in (3) above under “ Limitations on Indebtedness ” additional securities may be issued under the General and Refunding Mortgage Indenture as of September 30, 2006. That amount is determined on the basis of:
  1.   70% of net utility property additions
  2.   the principal amount of retired General and Refunding Mortgage Securities, and/or
  3.   the principal amount of first mortgage bonds retired after October 19, 2001.
          NPC also has the ability to release property from the lien of the mortgage indenture on the basis of net property additions, cash and/or retired bonds. To the extent NPC releases property from the lien of its General and Refunding Mortgage Indenture, it will reduce the amount of securities issuable under that indenture.
Credit Ratings
          Fitch upgraded the ratings of SPR and the two Utilities on September 20, 2006. The rating for the senior secured debt of NPC was increased to BBB-, the minimum level for investment grade. The senior unsecured debt for all three companies was also upgraded. The rating outlook for SPR, NPC and SPPC was revised from Positive to Stable. On September 22, 2006, S&P upgraded the rating of NPC’s senior secured debt from BB to BB+, one level below investment grade. On September 27, 2006, Moody’s re-affirmed its rating for NPC’s senior secured debt at Ba1, which is one level below investment grade.
          A security rating is not a recommendation to buy, sell or hold securities. Security ratings are subject to revision and withdrawal at any time by the assigning rating organization, and each rating should be evaluated independently of any other rating.
Cross Default Provisions
          None of the financing agreements of NPC contain a cross-default provision that would result in an event of default by NPC upon an event of default by SPR or SPPC under any of its financing agreements. In addition, certain financing agreements of NPC provide for an event of default if there is a failure under other financing agreements of NPC to meet payment terms or to observe other covenants that would result in an acceleration of payments due. Most of these default provisions (other than ones relating to a failure to pay such other indebtedness when due) provide for a cure period of 30-60 days from the occurrence of a specified event during which time NPC may rectify or correct the situation before it becomes an event of default.
SIERRA PACIFIC POWER COMPANY
RESULTS OF OPERATIONS
          During the three months ended September 30, 2006, SPPC recognized net income of approximately $20.0 million compared to net income of approximately $21.9 million for the same period in 2005. During the nine months ended September 30, 2006, SPPC recognized net income of approximately $42.3 million compared to a net income of approximately $38.9 million for the same period in 2005. As of September 30, 2006, SPPC had paid $16.0 million in common stock dividends to SPR and paid $975 thousand in dividends to holders of its preferred stock. On October 24, 2006, SPPC declared an $8.6 million common stock dividend to SPR.
          Gross margin is presented by SPPC in order to provide information by segment that management believes aids the reader in determining how profitable the electric and gas businesses are at the most fundamental level. Gross margin, which is a “non-GAAP financial measure” as defined in accordance with SEC rules, provides a measure of income available to support the other operating expenses of the business and is utilized by management in its analysis of its business.

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          The components of gross margin were (dollars in thousands):
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior Year %     2006     2005     Prior Year %  
Operating Revenues:
                                               
Electric
  $ 284,339     $ 268,109       6.1 %   $ 767,133     $ 712,318       7.7 %
Gas
    21,106       15,574       35.5 %     141,128       115,248       22.5 %
 
                                       
 
  $ 305,445     $ 283,683       7.7 %   $ 908,261     $ 827,566       9.8 %
 
                                       
 
                                               
Energy Costs:
                                               
Purchased Power
    106,158       111,409       -4.7 %     267,914       260,498       2.8 %
Fuel for Power generation
    73,066       67,439       8.3 %     188,827       176,427       7.0 %
Gas purchased for resale
    13,492       12,906       4.5 %     105,240       89,410       17.7 %
Deferral of energy costs-electric-net
    (2,260 )     (17,414 )     -87.0 %     20,973       (7,591 )     -376.3 %
Deferral of energy costs-gas-net
    1,130       (2,001 )     -156.5 %     7,214       (997 )     -823.6 %
 
                                       
 
  191,586     172,339       11.2 %   590,168     517,747       14.0 %
 
                                       
Energy Costs by Segment:
                                               
Electric
    176,964       161,434       9.6 %     477,714       429,334       11.3 %
Gas
    14,622       10,905       34.1 %     112,454       88,413       27.2 %
 
                                       
 
  191,586     172,339     11.2 %   590,168     517,747       14.0 %
 
                                       
 
                                               
Gross Margin by Segment:
                                               
Electric
  $ 107,375     $ 106,675       0.7 %   $ 289,419     $ 282,984       2.3 %
Gas
    6,484       4,669       38.9 %     28,674       26,835       6.9 %
 
                                       
 
  $ 113,859     $ 111,344       2.3 %   $ 318,093     $ 309,819       2.7 %
 
                                       
          The causes of significant changes in specific lines comprising the results of operations are provided below (dollars in thousands, except for amounts per unit):
Electric Operating Revenues
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior year %     2006     2005     Prior year %  
Electric Operating Revenues:
                                               
Residential
  $ 88,528     $ 78,271       13.1 %   $ 239,109     $ 210,403       13.6 %
Commercial
    107,502       93,491       15.0 %     280,740       241,758       16.1 %
Industrial
    80,438       89,909       -10.5 %     222,755       240,547       -7.4 %
 
                                       
Retail
    276,468       261,671       5.7 %     742,604       692,708       7.2 %
Other
    7,871       6,438       22.3 %     24,529       19,610       25.1 %
 
                                       
Total Revenues
  $ 284,339     $ 268,109       6.1 %   $ 767,133     $ 712,318       7.7 %
 
                                       
 
Retail sales in thousands of MWh
    2,376       2,543       -6.6 %     6,546       7,015       -6.7 %
Average retail revenue per MWh
  $ 116.36     $ 102.90       13.1 %   $ 113.44     $ 98.75       14.9 %
          SPPC’s retail revenues increased for the three months and nine months ended September 30, 2006 as compared to the same periods in the prior year primarily due to increases in retail rates and to a lesser extent customer growth. Retail rates increased as a result of SPPC’s various BTER and Deferred Energy cases (refer to “Regulatory Proceedings”). Also contributing to the increase was the growth in retail customers for the three months and nine months ended September 30, 2006 (2.8% and 2.8%, respectively). These increases were offset by lower industrial energy revenues and MWh’s as a result of SPPC’s largest industrial customer, Barrick Gold, moving to distribution-only services effective December 1, 2005. On October 5, 2006, the California Public Utilities Commission (CPUC) approved the recovery of $11.2 million in fuel and purchased power costs under the Energy Cost Adjustment Clause. Effective November 1, 2006, SPPC will begin to collect $10.1 million over a one year period and the remaining amount over a two year period.

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          Electric Operating Revenues — Other increased for the three and nine months ended September 30, 2006 compared to the same periods in 2005 primarily as a result of Barrick becoming a distribution-only services customer.
Gas Operating Revenues
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior year %     2006     2005     Prior year %  
Gas Operating Revenues:
                                               
Residential
  $ 11,369     $ 7,110       59.9 %   $ 78,901     $ 61,204       28.9 %
Commercial
    5,448       3,850       41.5 %     37,187       30,327       22.6 %
Industrial
    2,895       1,999       44.8 %     14,643       11,121       31.7 %
 
                                       
Retail revenue
    19,712       12,959       52.1 %     130,731       102,652       27.4 %
Wholesale revenue
    776       1,939       -60.0 %     8,275       10,547       -21.5 %
Miscellaneous
    618       676       -8.6 %     2,122       2,049       3.6 %
 
                                       
Total Revenues
  $ 21,106     $ 15,574       35.5 %   $ 141,128     $ 115,248       22.5 %
 
                                       
 
                                               
Retail sales in thousands of decatherms
    1,324       1,163       13.8 %     10,004       10,315       -3.0 %
 
                                               
Average retail revenues per decatherm
  $ 14.89     $ 11.14       33.6 %   $ 13.07     $ 9.95       31.3 %
          SPPC’s retail gas revenues increased for the three months and nine months ended September 30, 2006 primarily due to increases in retail rates. Retail rates increased as a result of SPPC’s various general, energy and deferred energy rate cases (refer to “Regulatory Proceedings”). Also contributing to the increase was the growth in retail customers for the three months and nine months ended September 30, 2006 (4.2% and 4.3%, respectively). Partially offsetting these increases was a decrease in customer usage as a result of warmer weather. On May 15, 2006, SPPC filed an application with the PUCN to implement a new deferred energy account adjustment in order to recover natural gas costs and to reset the BTER. If approved by the PUCN, SPPC has requested rates to become effective December 2006 (refer to “Regulatory Proceedings”).
          The wholesale revenues for the three months and nine months ended September 30, 2006, decreased compared to the same period of 2005 primarily due to decreased availability of gas for wholesale sales.
Purchased Power
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
Purchased Power
  $ 106,158     $ 111,409       -4.7 %   $ 267,914     $ 260,498       2.8 %
 
                                               
Purchased Power in thousands of MWhs
    1,399       1,449       -3.5 %     4,103       4,228       -3.0 %
Average cost per MW of Purchased Power
  $ 75.88     $ 76.89       -1.3 %   $ 65.30     $ 61.61       6.0 %
          Purchased power costs decreased for the three months ended September 30, 2006 as compared to the same period in 2005 primarily due to a decrease in volume; which was attributed to the loss of a large industrial customer transitioning to distribution only services.
          Purchased power costs increased for the nine months ended September 30, 2006 as compared to the same period in 2005 primarily due to higher prices of purchased power. Volumes for the nine months ended September 30, 2006 decreased slightly as discussed above.

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Fuel For Power Generation
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
 
                                               
Fuel for Power Generation
  $ 73,066     $ 67,439       8.3 %   $ 188,827     $ 176,427       7.0 %
 
                                               
Thousands of MWh generated
    1,067       1,221       -12.6 %     2,916       3,310       -11.9 %
Average fuel cost per MWh of Generated Power
  $ 68.48     $ 55.23       24.0 %   $ 64.76     $ 53.30       21.5 %
          Fuel for power generation and the average fuel cost per MWh increased for the three months and nine months ended September 30, 2006 compared to the same period in 2005. The increase is primarily related to increases in natural gas costs during the first quarter of 2006 and hedging instruments that were purchased during the period when gas prices were escalating as a result of the 2005 hurricanes in the southern United States. The settlement of these instruments during the second and third quarters of 2006 negatively impacted the average cost per MWh as natural gas prices were decreasing during these periods. MWh’s generated decreased as compared to 2005 due primarily to a large industrial customer transitioning to distribution only service for 2006.
Gas Purchased for Resale
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
 
                                               
Gas Purchased for Resale
  $ 13,492     $ 12,906       4.5 %   $ 105,240     $ 89,410       17.7 %
 
                                               
Gas Purchased for Resale (in thousands of decatherms)
    1,464       1,487       -1.6 %     11,470       11,874       -3.4 %
 
                                               
Average cost per decatherm
  $ 9.22     $ 8.68       6.2 %   $ 9.18     $ 7.53       21.9 %
          The cost of gas purchased for resale for the three months ended September 30, 2006 as compared to the same period in 2005 increased primarily due to hedging instruments that were purchased during the period when gas prices were escalating as a result of the 2005 hurricanes in the southern United States. The settlement of these instruments during the third quarter of 2006 negatively impacted the average cost per decatherm as natural gas prices were decreasing during this period. This increase was partially offset by a decrease in natural gas costs during the third quarter of 2006.
          The cost of gas purchased for resale for the nine months ended September 30, 2006 as compared to the same period in 2005 increased primarily due to higher natural gas prices in the first quarter of 2006, which is typically SPPC’s peak season for its’ gas operations.

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Deferred Energy Costs
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior Year %     2006     2005     Prior Year %  
 
                                               
Deferred energy costs — electric — net
  $ (2,260 )   $ (17,414 )     87.0 %   $ 20,973     $ (7,591 )     376.3 %
Deferred energy costs — gas — net
    1,130       (2,001 )     -156.5 %     7,214       (997 )     -823.6 %
 
                                       
 
  $ (1,130 )   $ (19,415 )           $ 28,187     $ (8,588 )        
 
                                       
          Deferred energy costs — net represents the difference between actual fuel and purchased power costs incurred during the period and amounts recoverable through current rates. To the extent actual costs exceed amounts recoverable through current rates, the excess is recognized as a reduction in costs. Conversely to the extent actual costs are less than amounts recoverable through current rates, the difference is recognized as an increase in costs. Deferred energy costs — net also include the current amortization of fuel and purchased power costs previously deferred. Reference Note 1, Summary of Significant Accounting Policies, Deferral of Energy Costs of the Condensed Notes to Financial Statements for further detail of deferred energy balances.
          Deferred energy costs — electric net includes amortization of deferred energy costs for the three months ended September 30, 2006 and 2005 of $11.8 million and $13.4 million, respectively; and an under-collection of amounts recoverable in rates of $14.1 million and $30.8 million, respectively. Amounts for the nine months ended September 30, 2006 and 2005 include amortization of deferred energy costs of $34.4 million and $32.1 million, respectively; and an under-collection of amounts recoverable in rates of $13.5 million and $39.7 million, respectively.
          Deferred energy costs — gas — net for 2006 and 2005 include amortization of deferred energy costs for the three months ended September 30, 2006 of $0.6 million and $0.2 million, respectively; and an over-collection of amounts recoverable in rates of $0.5 million and an under-collection of $2.2 million, respectively. Amounts for the nine months ended September 30, 2006 include amortization of deferred energy costs of $4.8 million and $(0.4) million, respectively; and an over-collection of amounts recoverable in rates of $2.4 million and an under-collection of $0.5 million, respectively.
Allowance for Funds Used During Construction (AFUDC)
                                                 
    Three Months     Nine Months  
    Ended September 30,     Ended September 30,  
                    Change from                     Change from  
    2006     2005     Prior Year %     2006     2005     Prior Year %  
 
                                               
Allowance for other funds used during construction
  $ 1,357     $ 429       216.3 %   $ 3,509     $ 1,229       185.5 %
 
                                               
Allowance for borrowed funds used during construction
  $ 882     $ 390       126.2 %   $ 2,819     $ 1,129       149.7 %
 
                                       
 
  $ 2,239     $ 819       173.5 %   $ 6,328     $ 2,358       168.4 %
 
                                       
          AFUDC for SPPC is higher for the three months and nine months ended September 30, 2006 compared to the same periods in 2005 due to an increase in Construction Work-In-Progress (CWIP). The increase is primarily due to the expansion of the Tracy Generating Station.

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Other (Income) and Expense
                                                 
    Three Months   Nine Months
    Ended September 30,   Ended September 30,
                    Change from                   Change from
    2006   2005   Prior Year %   2006   2005   Prior Year %
 
                                               
Other operating expense
  $ 34,119     $ 29,334       16.3 %   $ 101,413     $ 97,872       3.6 %
Maintenance expense
  $ 8,065     $ 6,313       27.8 %   $ 24,833     $ 20,064       23.8 %
Depreciation and amortization
  $ 21,075     $ 22,610       -6.8 %   $ 66,037     $ 67,534       -2.2 %
Interest charges on long-term debt
  $ 18,134     $ 17,307       4.8 %   $ 53,958     $ 51,933       3.9 %
Interest charges-other
  $ 1,341     $ 1,001       34.0 %   $ 3,694     $ 3,402       8.6 %
Interest accrued on deferred energy
  $ (1,433 )   $ (1,785 )     -19.7 %   $ (4,878 )   $ (5,061 )     -3.6 %
Other income
  $ (2,491 )   $ (1,681 )     48.2 %   $ (7,301 )   $ (4,148 )     76.0 %
Other expense
  $ 2,138     $ 1,476       44.9 %   $ 6,806     $ 4,709       44.5 %
          Other operating expense for the three month and nine month periods ending September 30, 2006 increased from the prior year due to increased amortization of regulatory assets as a result of SPPC’s GRC, as discussed in Regulatory Proceedings. Also contributing to the increase was the recovery of a claim against Pacific Gas and Electric in 2005; partially offset by Enron legal fees incurred in 2005.
          Maintenance costs for the three month and nine month periods ending September 30, 2006 increased from the prior year due to the timing of scheduled and unscheduled plant maintenance at Valmy, Ft. Churchill and Tracy.
          Depreciation and amortization expenses for the three and nine months ended September 30, 2006 were lower due to the change in depreciation rates as ordered by the PUCN in SPPC’s General Electric and Gas Rate Case. For further information on SPPC’s General and Electric Rate Case see Regulatory Proceedings, later.
          Interest charges on Long-Term Debt increased for the three months and nine months ended September 30, 2006 compared to the same period in 2005 due primarily to interest on the $300 million Series M Note issued in March 2006, partially offset by debt redemptions in March 2006 of $188 million and an additional debt redemption in April 2006 of $10 million. See Note 4, Long-Term Debt of the Condensed Notes to Financial Statements for additional information regarding long-term debt.
          Interest charges-other for the three months and nine months ended September 30, 2006 increased, when compared to the same period in 2005, due to higher costs for early redemptions in March 2006 of $188 million, new issue expenses for the $300 million Series M Note issued in March 2006, and expenses for the debt redemption in April 2006 of $10 million, offset partially by settlements in 2005 with terminated energy suppliers which reduced interest accruals for amounts owed.
          SPPC’s interest accrued on deferred energy for the three and nine months ended September 30, 2006 decreased compared to the same period in 2005 due to lower deferred energy asset balances during the three months and nine months ended September 30, 2006, when compared to the same period in 2005. See Note 3, Regulatory Actions of the Condensed Notes to Financial Statements for further discussion of deferred energy accounting issues.
          SPPC’s other income increased during the three months and nine months ended September 30, 2006, when compared to the same period in 2005, primarily due to an increase in interest income associated with higher cash balances from the issuance of new debt in March, as well as gains from the sale of property.
          SPPC’s other expense increased during the three months and nine months ended September 30, 2006, when compared to the same period in 2005, due to various charges, all of which were not individually significant.
ANALYSIS OF CASH FLOWS
          SPPC’s cash flows decreased during the nine months ended September 30, 2006, when compared to the same period in 2005, as a result of an increase in cash used in investing activities offset by increases in cash flows from operating and financing activities.
          Cash used by investing activities increased primarily as a result of the expansion of the Tracy plant during the nine months ended September 30, 2006, compared to the same period in 2005.

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          At various times within the first nine months in 2006, SPPC borrowed approximately $198 million under its revolving credit facility and also issued $300 million 6.0% General and Refunding Mortgage Notes Series M. The draw on the credit facility was used to retire approximately $198 million of SPPC’s Medium Term Notes Series A, B and C, and the net proceeds of the $300 million offering were used to pay off the amount borrowed under the revolving credit facility, to redeem $50 million of preferred stock and to pay associated costs, premium and dividends. The balance will be used to redeem $20 million in debt maturing in November 2006. SPPC also paid dividends to SPR of approximately $16 million.
          Cash from operating activities were higher in 2006 mainly due to the settlement of balances outstanding for tax sharing agreements, a reduction in prepayments for energy and increases in general and energy rates, offset by the settlement with Enron during the first quarter.
LIQUIDITY AND CAPITAL RESOURCES (SPPC)
Overall Liquidity
          SPPC’s primary source of operating cash flows are electric and gas revenues, including the recovery of previously deferred energy and gas costs. Significant uses of cash flows from operations include the purchase of electricity and natural gas, other operating expenses and the payment of interest on SPPC’s outstanding indebtedness.
         
Available Liquidity as of September 30, 2006 (in millions)
    SPPC  
Cash and Cash Equivalents
  $ 83.5  
Balance available on Revolving Credit Facility
    342.0  
 
     
Total Available Liquidity 1
  $ 425.5  
 
     
 
1   As of October 30, 2006, SPPC had approximately $342 million available under its’ revolving credit facility. Additionally, if necessary, SPPC has the ability to issue additional debt, as discussed under Limitations on Indebtedness.
          SPPC anticipates that it will be able to meet operating costs, such as fuel and purchased power costs with internally generated funds, including the recovery of deferred energy. However, to fund capital requirements, as discussed in the 2005 Form 10-K, SPPC may be required to meet such financial obligations with a combination of internally generated funds, the use of its revolving credit facility, and if necessary, the issuance of long-term debt and/or capital contributions from SPR.
          During the nine months ended September 30, 2006, there were no material changes to the contractual obligations described in SPPC’s 2005 Form 10-K except for certain financing transactions as discussed below and the entering into certain equipment and construction service contracts to build SPPC’s 514 MW combined cycle natural gas power plant at its Tracy Generating Station, which is expected to be completed in 2008. Obligations under the contracts total approximately $329 million.
Financing Transactions
Redemption Notices
On October 27, 2006, SPPC provided notices of redemption to the holders of its:
  6.30% Humboldt County Pollution Control Revenue Bonds, Series 1992A, due 7/1/2022, in the amount of $10.3 million;
 
  6.55% Washoe County Gas Facilities Revenue Bonds, Series 1990, due 9/1/2020, in the amount of $20 million;
 
  6.70% Washoe County Gas Facilities Revenue Bonds, Series 1992, due 11/1/2032, in the amount of $21.2 million;
 
  5.90% Washoe County Water Facilities Refunding Revenue Bonds, Series 1993A, due 6/1/2023, in the amount of $9.8 million; and
 
  5.90% Washoe County Gas and Water Facilities Refunding Revenue Bonds, Series 1993B, due 6/1/2023, in the amount of $30 million.
          The bonds are scheduled to be redeemed on November 30, 2006, at 100% of the stated principal amount (approximately $91.3 million), plus accrued interest to the date of redemption .

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Humboldt County Pollution Control Refunding Revenue Bonds
          On October 30, 2006, the 6.35% Humboldt County Pollution Control Refunding Revenue Bonds, Series 1992B, due August 1, 2022, in the amount of $1 million were redeemed at 100% of the stated principal amount, plus accrued interest.
Revolving Credit Facility
          On April 19, 2006, SPPC increased the size of its amended and restated revolving credit facility expiring 2010 to $350 million. The facility will provide additional liquidity for increased commodity prices and temporary bridge financing of capital expenditures. As of September 30, 2006, SPPC had $8 million of letters of credit outstanding and had no amounts borrowed under the revolving credit facility. As of October 30, 2006, SPPC had $8 million of letters of credit and had no amounts borrowed under the revolving credit facility.
          The SPPC Credit Agreement contains two financial maintenance covenants. The first requires that SPPC maintain a ratio of consolidated indebtedness to consolidated capital, determined as of the last day of each fiscal quarter, not to exceed 0.68 to 1. The second requires that SPPC maintain a ratio of consolidated cash flow to consolidated interest expense, determined as of the last day of each fiscal quarter for the period of four consecutive fiscal quarters, not to be less than 2.0 to 1. As of September 30, 2006, SPPC was in compliance with these covenants.
          The SPPC Credit Agreement provides for an event of default if there is a failure under SPPC’s other financing agreements to meet certain payment terms or to observe other covenants that would result in an acceleration of payments due.
          The SPPC Credit Agreement, similar to SPPC’s Series H Notes, places certain restrictions on debt incurrence, liens and dividends. These limitations are discussed in Note 9, Debt Covenant Restrictions in the Notes to Consolidated Financial Statements in the 2005 Form 10-K.
General and Refunding Mortgage Notes, Series M
          On March 23, 2006, SPPC issued and sold $300 million of its 6.00% General and Refunding Mortgage Notes, Series M, due May 15, 2016. The Series M Notes were issued with registration rights. Proceeds of the offering were used to repay $173 million borrowed under the revolving credit facility that was utilized to:
    fund the early redemption of $110 million aggregate principal amount of SPPC’s Collateralized Medium Term 6.95% to 8.61% Series A Notes due 2022,
 
    fund the early redemption of $58 million aggregate principal amount of SPPC’s Collateralized Medium Term 7.10% to 7.14% Series B Notes due 2023,
 
    pay for maturing debt of $30 million aggregate principal amount of SPPC’s Collateralized Medium Term 6.81% to 6.83% Series C Notes due 2006, and
 
    pay for $51 million in connection with the redemption of $50 million of SPPC’s Series A Preferred Stock (two million shares of stock were redeemed at a redemption price per share of $25.683, plus accrued dividends to the redemption date of $.4875 per share).
     The remaining $51 million of proceeds have been or will be used as follows:
    payment for maturing debt of $20 million aggregate principal amount of SPPC’s Collateralized Medium Term 6.62% to 6.65% Series C Notes due November 2006; and
 
    payment of related fees and for general corporate purposes.
Factors Affecting Liquidity
Limitations on Indebtedness
Certain factors impact SPPC’s ability to issue debt:
  1.   Financing Authority from the PUCN; In February 2006, SPPC received PUCN authorization to enter into financings of $1.36 billion which amount includes $350 million for the revolving credit facility (described above). SPPC has issued $21 million of the new debt authorized in the PUCN Order. SPPC’s remaining authority under this PUCN Order allows SPPC to use its $350 million revolving credit facility to issue $349 million in new debt and to refinance existing debt as specified in the order.
  2.   Limits on Bondable Property; To the extent that SPPC has the ability to issue debt under the most restrictive covenants in its financing agreements and has financing authority to do so from the PUCN, SPPC’s ability to issue secured debt is still limited by the amount of bondable property or retired bonds that can be used to issue debt under

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the General and Refunding Mortgage Indenture. As of September 30, 2006, SPPC has the capacity to issue $151.6 million of General and Refunding Mortgage Securities.
  3.   Financial Covenants in its financing agreements.
          The terms of certain SPR debt further prohibit SPPC and NPC from incurring additional indebtedness unless certain conditions have been met. See SPR’s Limitations on Indebtedness for details of these restrictions. In addition to the SPR debt, the terms of SPPC’s Series H Notes and SPPC’s Amended and Restated Revolving Credit Agreement restrict SPPC from issuing additional indebtedness unless certain covenants are satisfied. See Note 9, Debt Covenant Restrictions, of the Notes to Consolidated Financial Statements in the 2005 Form 10-K.
          As of September 30, 2006, the financial covenants under the revolving credit facility, which are more restricitive than the Series H Notes restriction, would allow SPPC to issue up to $535 million of additional debt. The covenant limitations of certain SPR debt place a cap on additional indebtedness, on a consolidated basis, including SPPC and NPC, at $2.2 billion as of September 30, 2006. Therefore, SPPC would not be materially limited by SPR’s cap on additional indebtedness.
          Since SPR’s debt covenant limitations are calculated on a consolidated basis, SPR’s debt covenant limitations may allow for higher or lower borrowings than $2.2 billion, depending on the Utilities’ combined usage of their revolving credit facilities at the time of the covenant calculation.
Limitations on Ability to Issue General and Refunding Mortgage Bonds
          SPPC’s First Mortgage Indenture creates a first priority lien on substantially all of SPPC’s properties in Nevada and California. As of September 30, 2006, $289.3 million of SPPC’s first mortgage bonds were outstanding. SPPC agreed under the terms of various securities issued under its General and Refunding Mortgage Indenture that it would not issue any additional first mortgage bonds.
          SPPC’s General and Refunding Mortgage Indenture creates a lien on substantially all of SPPC’s properties in Nevada that is junior to the lien of the first mortgage indenture. As of September 30, 2006, $1.2 billion of SPPC’s General and Refunding Mortgage Securities were outstanding. As mentioned in (3) above under “ Limitations on Indebtedness ” additional securities may be issued under the General and Refunding Mortgage Indenture as of September 30, 2006. That amount has been determined on the basis of:
  1.   70% of net utility property additions
 
  2.   the principal amount of retired General and Refunding Mortgage Securities, and/or
 
  3.   the principal amount of first mortgage bonds retired after October 19, 2001.
          SPPC also has the ability to release property from the liens of the two mortgage indentures on the basis of net property additions, cash and/or retired bonds. To the extent SPPC releases property from the lien of its General and Refunding Mortgage Indenture, it will reduce the amount of securities issuable under that indenture.
Credit Ratings
          Fitch upgraded the ratings of SPR and the two Utilities on September 20, 2006. The rating for the senior secured debt of SPPC was increased to BBB-, the minimum level for investment grade. The senior unsecured debt for all three companies was also upgraded. The ratings outlook for SPR, NPC and SPPC was revised from Positive to Stable. On September 22, 2006, S&P upgraded the rating of SPPC’s senior secured debt from BB to BB+, one level below investment grade. On September 27, 2006, Moody’s re-affirmed its rating for SPPC’s senior secured debt at Ba1, one level below investment grade.
          A security rating is not a recommendation to buy, sell or hold securities. Security ratings are subject to revision and withdrawal at any time by the assigning rating organization, and each rating should be evaluated independently of any other rating.

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Cross Default Provisions
          SPPC’s financing agreements do not contain any cross-default provisions that would result in an event of default by SPPC upon an event of default by SPR or NPC under any of their respective financing agreements. Certain financing agreements of SPPC provide for an event of default if there is a failure under other financing agreements of SPPC to meet payment terms or to observe other covenants that would result in an acceleration of payments due. Most of these default provisions (other than ones relating to a failure to pay such other indebtedness when due) provide for a cure period of 30-60 days from the occurrence of a specified event during which time SPPC may rectify or correct the situation before it becomes an event of default.
Other (SPPC)
          SPPC’s current contract with the IBEW Local No. 1245, which represents approximately 64% of SPPC’s workforce, was set to expire on December 31, 2005. Both SPPC and IBEW 1245 are currently in negotiations for a new contract which has not been reached as of November 1, 2006. Current contract language allows for the extension of the contract while negotiations on a new labor contract continue. All terms of the current collective bargaining agreement (CBA) will continue during the negotiating process and until a new contract is ratified by IBEW membership. If either party wishes to terminate the contract they must provide the other party 30 days’ written notice. Active negotiations have continued between the parties, who agreed to enlist the assistance of a federal mediator. SPPC is unable at this time to predict the timing of any agreement with the union or the terms of any such agreement.
REGULATORY PROCEEDINGS (UTILITIES)
          SPR is a “holding company” under the Public Utility Holding Company Act of 2005 (PUHCA 2005). As a result, SPR and all of its subsidiaries (whether or not engaged in any energy related business) are required to maintain books, accounts and other records in accordance with Federal Energy Regulatory Commission (FERC) regulations and to make them available to the FERC, the PUCN and California Public Utility Commission (CPUC). In addition, the PUCN, CPUC, or the FERC have the authority to review allocations of costs of non-power goods and administrative services among SPR and its subsidiaries. The FERC has the authority generally to require that rates subject to its jurisdiction be just and reasonable and in this context would continue to be able to, among other things, review transactions between SPR, NPC and/or SPPC and/or any other affiliated company. SPR does not expect that the new PUHCA law or the regulations promulgated by the FERC will have a material impact on the company and how its public utility subsidiaries are regulated.
          The Utilities are subject to the jurisdiction of the PUCN and, in the case of SPPC, the CPUC with respect to rates, standards of service, siting of and necessity for generation and certain transmission facilities, accounting, issuance of securities and other matters with respect to electric distribution and transmission operations. NPC and SPPC submit IRPs to the PUCN for approval.
          Under federal law, the Utilities and TGPC are subject to certain jurisdictional regulation, primarily by the FERC. The FERC has jurisdiction under the Federal Power Act with respect to rates, service, interconnection, accounting and other matters in connection with the Utilities’ sale of electricity for resale and interstate transmission. The FERC also has jurisdiction over the natural gas pipeline companies from which the Utilities take service.
          As a result of regulation, many of the fundamental business decisions of the Utilities, as well as the rate of return they are permitted to earn on their utility assets, are subject to the approval of governmental agencies. The following regulatory proceedings have affected, or are expected to affect the utilities financial positions, results of operations and cash flows.
          The Utilities are required to file annual periodic Deferred Energy Accounting Adjustment (DEAA) cases and biennial General Rate Cases (GRCs) in Nevada. As of September 30, 2006, NPC’s and SPPC’s balance sheet included approximately $525.6 million and $90.7 million, respectively, of deferred energy costs of which approximately $359.5 million and $44.2 million has been previously approved for collection over various periods. The remaining amounts will be requested in future regulatory filings. Refer to Note 1, Summary of Significant Accounting Policies, of the Condensed Notes to Financial Statements.
          The following summarizes rate case applications filed in 2005 and 2006. Each of these rate cases, as well as other regulatory matters such as, the Utilities’ Integrated Resource Plans and subsequent amendments, other Nevada matters, California matters and FERC matters, are discussed in more detail within this section.
Pending Rate Cases
    NPC 2006 Nevada General Rate Case (GRC) — Application to reset General Rates. Nevada Power expects to file its latest biennial general rate case in mid-November 2006.
Recently Approved Rate Cases
    SPPC 2006 Natural Gas and Propane Deferred Energy and BTER Update — On October 25, 2006, the PUCN approved negotiated settlements to recover $1.1 million in deferred natural gas and propane costs and to set the going forward energy rates such that $1.3 million of new revenues would be collected. The settlements, combined with the expiration of a previous natural gas DEAA rate, will yield a 2.5% rate reduction for natural gas customers and a 3.3% increase for propane customers.

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    SPPC 2006 California Energy Cost Adjustment Clause Rate Case — Application to reset energy rates for SPPC’s California customers. The total request sought to collect an additional $11.2 million annually for deferred and going forward costs related to fuel and power purchases. The two requested rate increases total 16.5%. On October 5, 2006, the CPUC approved the application as filed, with an effective date of November 1, 2006.
 
    SPPC 2005 California General Rate Case (GRC) — Application to reset General Rates. On August 24, 2006, the CPUC approved a settlement agreement, which beginning on September 1, 2006, allowed SPPC to collect an estimated $4.1 million of additional general revenues.
 
    NPC 2006 BTER Update and Deferred Energy Rate Case — Application to create a new DEAA rate and to update the going forward BTER. On April 12, 2006, the PUCN approved a new BTER, which would increase purchased fuel and power revenues by an estimated $112 million. On June 28, 2006, the PUCN approved a negotiated settlement of the deferred energy phase of the case, which, based on an updated forecast, reduced the previously approved BTER revenue by approximately $1.6 million and allowed full recovery of $171.5 million in deferred costs with an effective date of May 1, 2006.
 
    SPPC December 2005 Electric Deferred Energy and BTER Update — Application to create a new electric DEAA rate and to update the electric BTER. On April 12, 2006, the PUCN approved a new Electric BTER, which will increase purchased fuel and power revenues by an estimated $31 million. On June 7, 2006, the PUCN approved a negotiated settlement, which granted SPPC full recovery of the deferred costs during a two year period beginning July 1, 2006.
 
    SPPC 2005 Electric General Rate Case — On April 27, 2006, the PUCN authorized a 10.6% ROE and 8.96% ROR and ordered SPPC to reduce general revenues for electric services by approximately $14 million.
 
    SPPC 2005 Gas General Rate Cases — On April 27, 2006, the PUCN authorized a 10.6% ROE and 7.98% ROR and ordered SPPC to increase general revenues for gas services by approximately $4.5 million.
Nevada Matters
Nevada Power Company
2006 Integrated Resource Plan
          On June 30, 2006, NPC filed its 2006 triennial Integrated Resource Plan with the PUCN. The filing requested approval to develop new conventional and renewable generation resources, improve NPC’s transmission system and increase demand side initiatives. The demand side programs are intended to help customers use electricity more efficiently and also contribute to NPC’s Renewable Portfolio requirements. The filing contained the following key elements:
    Requested approval to construct the following supply side resources:
    Two 750 MW super critical coal fired generation units at the proposed Ely Energy Center in White Pine County, Nevada estimated to be in service by 2011 and 2013 respectively. The Utilities are currently estimating that 80% of each unit will be allocated to NPC and 20% will be allocated to SPPC.
 
    A 250-mile 500 kV transmission line to integrate the new generation into both NPC’s and SPPC’s systems and to allow delivery of geothermal resources from Northern Nevada to NPC and solar powered generation from Southern Nevada to SPPC. The transmission line will be allocated to NPC and SPPC similar to the generating units above.
 
    600 MW of gas fired combustion turbine peaking generation, 400 MW in service by 2008 and 200 MW in service by 2009.
    Requested the PUCN to designate the Ely Energy Center and the 500kV transmission intertie as critical facilities under Nevada regulations and requested incentive ratemaking treatment including “CWIP in rate base” during construction and, upon completion, a 2% enhanced ROE and accumulation of depreciation expense in a regulatory asset account from the time the plants are placed in service until they are included in rates.
 
    Outlined initiatives, including NPC ownership positions in renewable energy projects, which are expected to enable NPC to meet Nevada’s Portfolio Standards.
 
    Requested approval of four new demand side programs and to increase spending on eight existing demand side programs.
 
    Outlined NPC’s ten-year $4.7 billion budget for all of the proposed initiatives.

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On September 14, 2006 the PUCN approved a negotiated settlement accepting NPC’s load forecast.
          On September 25, 2006, NPC provided testimony that modified its request for critical facility designations and associated incentive ratemaking treatments, which included the withdrawal of the following:
    incentive ratemaking treatment for the initial $300 million project development costs.
 
    NPC’s request for a specific enhanced ROE in this docket; however, NPC stated it would resubmit a request for an enhanced ROE in a future filing.
          On September 27, 2006 the PUCN approved a negotiated settlement of NPC’s 2007-2009 Energy Supply Plan, which was a component of its integrated resource plan filing.
          NPC expects a final order from the PUCN by mid-November 2006.
2006 Deferred Energy and BTER Update
          On January 17, 2006, NPC filed a DEAA rate case application with the PUCN seeking recovery for purchased fuel and power costs and to increase its going forward BTER to reflect future energy costs. Refer to the 2005 Form 10-K for specific details about this filing.
          On April 12, 2006, the PUCN approved an agreement among the interveners and NPC, which, effective May 1, 2006, set NPC’s BTER rates such that an estimated $112 million (revised by June 28, 2006 DEAA agreement — see below) of new revenues would be collected for fuel and power purchases in addition to the start of an $8.4 million collection related to a previous DEAA rate case. Combined, the approximately $120 million increase represented an overall average rate increase of approximately 6.5%.
          In the Deferred Energy portion of the case, NPC had requested authorization to recover $171.5 million of previously incurred purchased fuel and power costs over a one year period. On June 28, 2006, the PUCN approved a negotiated settlement, which specified (1) a reduction of $1.6 million to the BTER approved on April 12, 2006 based on an updated projection of costs and (2) granted NPC full recovery of the $171.5 million of deferred costs during a two year period beginning August 1, 2006. However, the $171.5 million was reduced by a $16.5 million payment previously received by NPC in connection with the Lenzie acquisition. Under this agreement, the DEAA rate changes required to asymmetrically recover the deferred balance are scheduled to be implemented during a two year period such that they will be offset by the expiration of previously approved DEAA rates. As a result, no rate increase was required.
Enhanced ROE Due to Early Completion of Lenzie Generating Station
          The PUCN designated Lenzie a critical facility and allowed a 2% enhancement to the authorized ROE when the PUCN approved NPC’s request to acquire the facility. The PUCN further allowed up to an additional .5% enhanced ROE if the Lenzie Block #1 generator units (two combustion turbine/generators and one steam turbine/generator) were commercially operable before March 31, 2006 and another .5% ROE enhancement if Block #2 was completed before June 30, 2006.
          On January 29, 2006, the first 600 MW combined cycle unit (Block #1) was declared commercially operable. On April 17, 2006, NPC announced that Lenzie Block #2 was commercially operable. NPC’s construction costs are projected to be less than the amount authorized by the PUCN. NPC believes it is eligible to receive a 3% enhancement to the otherwise authorized ROE that will be decided as a result of its GRC filing to be made November 2006. See Note 1, Summary of Significant Accounting Policies of the Condensed Notes to Financial Statements for further discussion on the accounting for the enhancement.
Material Amendments to NPC’s 2003 Integrated Resource Plan
Request for Authorization to Acquire Land & Land Rights for Transmission Facilities
          On January 20, 2006, NPC filed an amendment to its 2003 Integrated Resource Plan requesting approval to acquire approximately $57 million of strategic investments in land and land rights necessary for future 500 kV and 230 kV transmission facilities. NPC also requested approval to accrue a carrying charge on the investments, which would be equal to the current Allowance for Funds Used During Construction.
          On April 26, 2006, the PUCN approved a negotiated agreement that authorizes NPC to invest $37 million in land and land rights and to include authorized investments in the rate base calculation for its next general rate case.

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Sierra Pacific Power Company
Material Amendments to SPPC’s 2004 Integrated Resource Plan
          On June 14, 2006, SPPC filed an amendment to its 2004 Integrated Resource Plan. The filing contained the following key elements:
    Requested approval to construct the following supply side resources:
    Two 750 MW super critical coal fired generation units at the proposed Ely Energy Center in White Pine County, Nevada estimated to be in service by 2011 and 2013 respectively. The Utilities are currently estimating that 80% of each unit will be allocated to NPC and 20% will be allocated to SPPC.
 
    A 250-mile 500 kV transmission line to integrate the new generation into both NPC’s and SPPC’s systems and to allow delivery of geothermal resources from Northern Nevada to NPC and solar powered generation from Southern Nevada to SPPC. The transmission line will be allocated to NPC and SPPC similar to the generating units above.
    Requested the PUCN to designate the Ely Energy Center and the 500kV transmission intertie as critical facilities under Nevada regulations and requested incentive ratemaking treatment including “CWIP in rate base” during construction and, upon completion, a 2% enhanced ROE and accumulation of depreciation expense in a regulatory asset account from the time the plants are placed in service until they are included in rates.
 
    Requested approval to make certain enhancements to SPPC’s existing fleet of generators.
 
    Provided a $3.7 billion total estimate for the Ely Energy Center and outlines SPPC’s cost for other proposed initiatives totaling approximately $15 million.
          On September 14, 2006 the PUCN approved a negotiated settlement accepting SPPC’s load forecast.
          On September 25, 2006, SPPC provided testimony that modified its request for critical facility designations and associated incentive ratemaking treatments, which included the withdrawal of the following:
    incentive ratemaking treatment for the initial $300 million project development costs.
 
    SPPC’s request for a specific enhanced ROE in this docket; however, SPPC stated it would resubmit a request for an enhanced ROE in a future filing.
          On September 27, 2006 the PUCN approved a negotiated settlement of SPPC’s 2007 Energy Supply Plan Update, which was a component of its integrated resource plan amendment.
          SPPC expects a final order from the PUCN by mid-November 2006.
2006 Natural Gas and Propane Deferred Energy and BTER Update
          On May 15, 2006, SPPC’s gas distribution operation filed applications with the PUCN seeking recovery of deferred natural gas and propane costs accumulated between April 1, 2005 and March 31, 2006. The applications sought to establish a new natural gas DEAA rate to recover $2.5 million of deferred natural gas costs and a new propane DEAA rate to recover $120 thousand of deferred propane costs. SPPC also requested authorization to increase going forward natural gas and propane BTER’s to reflect forecasted gas costs. The new natural gas BTER was expected to increase revenue by $24.5 million. Combined with the expiration of a previous DEAA rate, the requested natural gas rate increases (DEAA and BTER) totaled approximately 10%. The new propane BTER was expected to increase revenue by $66 thousand, which combined with the $120 thousand in deferred costs and the expiration of previously implemented DEAA rates, resulted in an overall requested propane rate increase of approximately 30%.
          On October 25, 2006, the PUCN approved negotiated natural gas and propane settlements which consolidated the deferred natural gas and propane balances for collection from all gas customers and reduced the combined balance to $1.1 million. The agreements transferred approximately $1.4 million to other deferral periods and $.1 million to expense accounts. The agreements called for the cost recovery to occur over a 12 month period beginning December 1, 2006.
          The negotiated going forward natural gas rate is expected to recover an additional $1.3 million in revenue, which is a decrease from the originally requested $24.5 million. The decrease reflects more current natural gas price expectations.
          These settlements, combined with the expiration of a previous natural gas DEAA rate will cause natural gas customer rates to decrease by 2.5% and cause propane customer rates to increase by 3.3 %.

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December 2005 Electric Deferred Energy and BTER Update
          On December 1, 2005, SPPC filed an electric DEAA rate case application with the PUCN. The application sought recovery of purchased fuel and power costs and requested an increase in SPPC’s going forward BTER to reflect future energy costs. Refer to the 2005 Form 10-K for specific details about this filing.
          On April 12, 2006, the PUCN issued an order authorizing SPPC to increase its BTER on May 1, 2006, such that SPPC expects to collect $31 million in new revenues for purchased power. The change represented a 3.5% increase to customer rates.
          In the Deferred Energy portion of this case, SPPC had requested authorization to begin a one year recovery of the $46.7 million of previously incurred purchased fuel and power costs on July 1, 2006. On June 7, 2006, the PUCN approved a negotiated settlement, which granted SPPC full recovery of the deferred costs during a two year period beginning July 1, 2006. Under this agreement, the DEAA rate changes required to asymmetrically recover the $46.7 million deferred balance are scheduled to be implemented such that they will be offset by the expiration of previously approved DEAA rates. As a result, no rate increase was required.
2005 Electric and Gas General Rate Cases
          On October 3, 2005, SPPC filed a gas general rate case along with its statutorily required electric general rate case. Refer to the 2005 Form 10-K for specific details about this filing.
          On April 27, 2006, the PUCN issued its order to change electric and gas general rates. Although the order differed from our requested filing, the changes did not require material adjustments to net income for the six months ended June 30, 2006. The PUCN vote resulted in the following significant items:
    Electric general revenue decrease: approximately $14 million annually or 1.5% effective May 1, 2006
 
    Gas general revenue increase: $4.5 million annually or 2.3%, effective May 1, 2006
 
    Electric Return on Equity and Rate of Return: 10.6% and 8.96% respectively
 
    Gas Return on Equity and Rate of Return: 10.6% and 7.98% respectively
 
    Approval to continue recovery of SPPC’s allocated amount of the 1999 NPC/SPPC merger costs and goodwill from Electric customers
 
    Approval to recover an allocated amount of the 1999 NPC/SPPC merger costs and goodwill from Gas customers
 
    New depreciation rates for Gas and Electric facilities
 
    Deferred recovery of legal expenses related to the Enron purchased power contract litigation
Other Nevada Matters
Nevada Power Company and Sierra Pacific Power Company Renewable Portfolio Compliance
          In April 2006, the Utilities filed their 2005 Annual Renewable Energy Portfolio Standard Report with the PUCN (the “Report”). The Report indicates that the Utilities will meet the non-solar portfolio standard upon PUCN approval of a sale from SPPC to NPC of non-solar portfolio energy credits. The Utilities requested an exemption from the PUCN for the solar portion of the portfolio standard.
          On September 13, 2006, the PUCN approved a stipulated agreement allowing NPC to purchase from SPPC, non-solar portfolio energy credits to meet its 2005 compliance year requirements. The PUCN scheduled a hearing for November 16 and 17, 2006 to hear testimony on the Companies’ compliance report and specifically the calculation of Renewable Energy Credits available from Demand Side Management or energy conservation programs.
California Electric Matters (SPPC)
Sierra Pacific Power Company 2006 Energy Cost Adjustment Clause Rate Case
          On April 3, 2006, SPPC filed with the CPUC to reset its “balancing” rate to recover a forecasted deferred energy cost balance and to increase its “offset” rate for going-forward fuel and power purchases. The requested increase in the balancing rate is expected to result in $1.1 million additional revenue and the requested increase in the offset rate is expected to collect an additional $10.1 million. The total request represents an $11.2 million annual revenue increase or a 16.5% average increase to customer rates.
          On October 5, 2006, the CPUC authorized SPPC’s request as filed.

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Sierra Pacific Power Company 2005 General Rate Case
          On June 3, 2005, SPPC filed a California general rate case requesting $8.1 million of new revenue from approximately 40,000 California customers. The request represents a 12.7% average increase. SPPC requested that the new rates become effective on January 1, 2006.
          On August 24, 2006, the CPUC approved a settlement agreement, which beginning September 1, 2006, allowed SPPC to collect an estimated $4.1 million of additional general revenues from its California customers.
ACCOUNTING MATTERS
Recent Pronouncements
          See Note 1, Summary of Significant Accounting Policies of the Condensed Notes to Financial Statements, for a discussion of accounting policies and recent pronouncements.
ITEM 3.   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Interest Rate Risk
          As of September 30, 2006, SPR, NPC and SPPC have evaluated their risk related to financial instruments whose values are subject to market sensitivity. Such instruments are fixed and variable rate debt. Fair market value is determined using quoted market price for the same or similar issues or on the current rates offered for debt of the same remaining maturities (dollars in thousands).
                                                                 
    Expected Maturity Date            
                                                            Fair
    2006   2007   2008   2009   2010   Thereafter   Total   Value
     
Long-term Debt
                                                               
 
                                                               
SPR
                                                               
Fixed Rate
  $     $     $     $     $     $ 659,142     $ 659,142     $ 688,849  
Average Interest Rate
                                  7.86 %     7.86 %        
 
                                                               
NPC
                                                               
Fixed Rate
  $ 12,558     $ 17     $ 13     $     $     $ 2,140,835     $ 2,153,423     $ 2,245,347  
Average Interest Rate
    10.87 %     8.17 %     8.17 %                 6.85 %     6.87 %        
Variable Rate
  $     $     $     $ 15,000     $ 50,000     $ 192,500     $ 257,500     $ 257,500  
Average Interest Rate
                            3.49 %     6.33 %     3.45 %     4.01 %        
 
                                                               
SPPC
                                                               
Fixed Rate
  $ 20,530     $ 2,400     $ 322,400     $ 600     $     $ 749,250     $ 1,095,180     $ 1,115,600  
Average Interest Rate
    6.62 %     6.40 %     7.99 %     6.40 %           6.09 %     6.66 %        
 
                                                               
     
Total Debt
  $ 33,088     $ 2,417     $ 322,413     $ 15,600     $ 50,000     $ 3,741,727     $ 4,165,245     $ 4,307,296  
     
Commodity Price Risk
          See the 2005 Form 10-K, Item 7A, Quantitative and Qualitative Disclosures About Market Risk, Commodity Price Risk, for a discussion of Commodity Price Risk. No material changes in commodity risk have occurred since December 31, 2005.
Credit Risk
          The Utilities monitor and manage credit risk with their trading counterparties. Credit risk is defined as the possibility that a counterparty to one or more contracts will be unable or unwilling to fulfill its financial or physical obligations to the Utilities because of the counterparty’s financial condition. The Utilities’ credit risk associated with trading counterparties was approximately $24.6 million as of September 30, 2006 which has substantially decreased from the September 30, 2005 balance of $272 million. This decrease reflects the continued decline in natural gas and wholesale power market prices relative to the fall 2005 — winter 2006 spikes following hurricanes Katrina and Rita. In the event that the trading counterparties are unable to deliver under their contracts, it may be necessary for the Utilities to purchase alternative energy at a higher market price.

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ITEM 4.   CONTROLS AND PROCEDURES
  (a)   Evaluation of disclosure controls and procedures.
          SPR, NPC and SPPC’s principal executive officers and principal financial officers, based on their evaluation of the registrants’ disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934), have concluded that, as of September 30, 2006, the registrants’ disclosure controls and procedures were effective.
  (b)   Change in internal controls over financial reporting.
          There were no changes in internal controls over SPR, NPC or SPPC’s financial reporting in the third quarter of 2006 that have materially affected, or are reasonably likely to materially affect their respective internal controls over financial reporting.
PART II
ITEM 1.   LEGAL PROCEEDINGS
          For additional information regarding various pending administrative and judicial proceedings involving regulatory, environmental and other matters, which information is incorporated by reference into this Part II, see:
    “Item 3, Legal Proceedings” in the 2005 Form 10-K, and Item 1, Legal Proceedings, in the Form 10-Q for the Quarter Ended March 31, 2006 and Form 10-Q for the Quarter Ended June 30, 2006; and
 
    Note 6 “Commitments and Contingencies of the Condensed Notes to the Consolidated Financial Statements” in Part I of this report.
Nevada Power Company 2001 Deferred Energy Case
          On November 30, 2001, NPC made a deferred energy filing with the PUCN seeking repayment for purchased fuel and power costs accumulated between March 1, 2001, and September 30, 2001, as required by law. The application sought to establish a rate to repay purchased fuel and power costs of $922 million and spread the recovery of the deferred costs, together with a carrying charge, over a period of not more than three years.
          On March 29, 2002, the PUCN issued its Order on the application, allowing NPC to recover $478 million over a three-year period, but disallowing $434 million of deferred purchased fuel and power costs and $30.9 million in carrying charges consisting of $10.1 million in carrying charges accrued through September 2001 and $20.8 million in carrying charges accrued from October 2001 through February 2002. The Order stated that the disallowance was based on alleged imprudence in incurring the disallowed costs. NPC and the Bureau of Consumer Protection (BCP) both sought individual review of the PUCN Order in the First District Court of Nevada. The District Court affirmed the PUCN’s decision. Both NPC and the BCP filed Notices of Appeal with the Nevada Supreme Court.
          Oral argument was heard on February 23, 2006. On July 20, 2006, the Nevada Supreme Court ruled NPC is allowed to recover $180 million of the disallowed deferred energy costs and directed the District Court to remand the issue back to the PUCN to determine the rate schedule that will be used to recover this amount. In all other respects, the Nevada Supreme Court affirmed the District Court’s decision on the PUCN disallowance. In the third quarter of 2006, as a result of the Nevada Supreme Court decision, NPC recorded approximately $180 million , before tax , of the previously disallowed deferred energy costs in its Statements of Operations as “Reinstatement of Deferred Energy Costs.” NPC is unable to predict the terms of the rate schedule that the PUCN will provide for recovery of this amount.
Sierra Pacific Resources and Nevada Power Company
Merrill Lynch/Allegheny Lawsuit
In May 2003, SPR and NPC filed suit against Merrill Lynch & Co., Inc. and Merrill Lynch Capital Services, Inc. (collectively, Merrill Lynch) and Allegheny Energy, Inc. and Allegheny Energy Supply Co., LLC (collectively, Allegheny) in the United States District Court, District of Nevada, for compensatory and punitive damages of $850 million for causing the Public Utilities Commission of Nevada to disallow a $180 million rate adjustment for NPC in its 2001 deferred energy case (as discussed above). The PUCN held that NPC acted imprudently when it refused to enter into an electricity supply contract with Merrill Lynch and subsequently paid too much for electricity from another source. SPR and NPC allege that Merrill Lynch and Allegheny’s fraudulent testimony and wrongful conduct caused the PUCN disallowance. Merrill Lynch filed motions to dismiss on May 6, 2003 and June 23, 2003. Thereafter, the case was stayed pending resolution of NPC’s appeal of the 2001 deferred energy case pending before the Nevada Supreme Court. The Nevada Supreme Court has since rendered its decision in the appeal . The Nevada District Court has yet to rule on the motions to dismiss. On October 17, 2006, the District Court

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approved a stipulation continuing a stay of the proceeding pending final resolution of the PUCN remand proceedings in the 2001 deferred energy case.
Sierra Pacific Power Company
Piñon Pine
          In its 2003 General Rate Case, SPPC sought recovery of its unreimbursed costs associated with the Piñon Pine Coal Gasification Demonstration Project (the “Project”). The Project represented experimental technology tested pursuant to a Department of Energy (DOE) Clean Coal Technology initiative. Under the terms of the Project agreement, SPPC and DOE agreed to each fund 50% of construction costs of the Project. SPPC’s participation in the Project had received PUCN approval as part of SPPC’s 1993 integrated electric resource plan. While the conventional portion of the plant, a gas-fired combined cycle unit, was installed and performed as planned, the coal gasification unit never became fully operational. After numerous attempts to re-engineer the coal gasifier, the technology was determined to be unworkable. In its order of May 25, 2004, the PUCN disallowed $43 million of unreimbursed costs associated with the Project. SPPC filed a Petition for Judicial Review with the Second Judicial District Court of Nevada (District Court) in June 2004 (CV04-01434). On January 25, 2006, the District Court vacated the PUCN’s disallowance in SPPC’s 2003 General Rate Case and remanded the case back to the PUCN for further review as to whether the costs were justly and reasonably incurred (Order). On March 27, 2006, the PUCN appealed the Order to the Nevada Supreme Court (the “Supreme Court”) and filed a motion to stay the Order pending the appeal to the Supreme Court. On June 12, 2006, the District Court granted PUCN’s motion to stay the Order. On July 20, 2006, the Supreme Court issued an order questioning the finality of the District Court’s decision and thus whether it has jurisdiction over the appeal and invited the parties to brief this matter. The BCP and PUCN responded in early August. Parties are awaiting a decision by the Supreme Court. SPPC is unable to predict the outcome of the appeal.
ITEM 1A RISK FACTORS
           For the purposes of this section, the terms “we,” “us” and “our” refer to SPR on a consolidated basis (including NPC and SPPC). The following information updates, and should be read in conjunction with, the information disclosed in Item1A, “Risk Factors,” of our 2005 Form 10-K. The risks and uncertainties described below are not the only ones we face. Additional risks and uncertainties that are not presently known or that we currently believe to be less significant may also adversely affect us.
If NPC and/or SPPC do not receive favorable rulings in the deferred energy applications that they file with the PUCN and they are unable to recover their deferred purchased power, gas and fuel costs, we will experience an adverse impact on cash flow and earnings. Any significant disallowance of deferred energy charges in the future could materially adversely affect our cash flow, financial condition and liquidity.
          The rates that the Utilities charge their customers and certain aspects of their operations are subject to the regulation of the PUCN, which significantly influences the Utilities’ operating environment and affects their ability to recover costs from their customers. Under Nevada law, purchased power, gas and fuel costs in excess of those included in base rates are deferred as an asset on their balance sheets and are not shown as an expense until recovered from their retail customers. The Utilities are required to file deferred energy applications with the PUCN at least once every twelve months so that the PUCN may verify the prudence of the energy costs and allow them to clear their deferred energy accounts. Nevada law also requires the PUCN to act on these cases within a specified time period. Any of these costs determined by the PUCN to have been imprudently incurred cannot be recovered from the Utilities’ customers. Past disallowances in the Utilities’ deferred energy cases have been significant.
          As of September 30, 2006, NPC’s and SPPC’s unapproved deferred energy costs, including claims for terminated energy supply contracts, were $166.1 million and $46.7 million, respectively.
          Material disallowances of deferred energy costs, gas costs or inadequate base tariff energy rates would have a significant adverse effect on the Utilities’ financial condition and future results of operations, could cause downgrades of SPR’s and the Utilities’ securities by the rating agencies and would make it more difficult to finance operations and construction projects and to buy fuel and purchased power from third parties.
If NPC and/or SPPC do not receive favorable rulings in their future general rate cases, it will have a significant adverse effect on our financial condition, cash flows and future results of operations.
          The Utilities’ revenues and earnings are subject to changes in regulatory proceedings known as general rate cases, which the Utilities file with the PUCN approximately every two years. In the Utilities’ general rate cases, the PUCN establishes, among other things, their recoverable rate base, their return on common equity, overall rate of return, depreciation rates and their cost of capital.

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          We cannot predict what the PUCN will direct in their orders on the Utilities’ pending or future general rate cases. Inadequate base energy rates would have a significant adverse effect on the Utilities’ financial condition and future results of operations and could cause additional downgrades of their securities by the rating agencies and make it significantly more difficult to finance operations and construction projects and to buy fuel and purchased power from third parties.
SPR and the Utilities have substantial indebtedness that they may be required to refinance. The failure to refinance indebtedness would have an adverse effect on us.
          SPR and the Utilities have indebtedness that must be repaid, purchased, remarketed or refinanced. If the Utilities do not have sufficient funds from operations and/or SPR does not have sufficient funds from dividends to repay such indebtedness at maturity or when otherwise due, we will have to refinance the indebtedness through additional financings in private or public offerings. If, at the time of any financing or refinancing, prevailing interest rates or other factors result in higher interest rates on the refinanced debt, the increase in interest expense associated with the refinancing could adversely affect our cash flow, and, consequently, the cash available for payments on our other indebtedness. If the Utilities are unable to refinance or extend outstanding borrowings on commercially reasonable terms, or at all, they may have to:
    reduce or delay capital expenditures planned for replacements, improvements and expansions; and/or
 
    dispose of assets on disadvantageous terms, potentially resulting in losses and adverse effects on cash flow from their operating activities.
          We cannot assure you that the Utilities could effect or implement any of these alternatives on satisfactory terms, if at all. If SPR or the Utilities are unable to refinance indebtedness as it matures, our cash flow, financial conditions and liquidity could be materially adversely affected.
If SPR is precluded from receiving dividends from the Utilities, its financial condition and ability to meet its debt service obligations will be materially adversely affected.
          SPR is a holding company with no significant operations of its own. Its cash flows are substantially derived from dividends paid to it by the Utilities, which are typically utilized to service SPR’s debt and pay SPR’s operating expenses. In the future, subject to various factors to be considered by SPR’s Board of Directors, a portion of SPR’s cash flow may be used to resume dividend payments on SPR’s common stock, with the balance, if any, reinvested in SPR’s subsidiaries as contributions to capital. The Utilities are subject to restrictions on their ability to pay dividends to SPR under the terms of certain of their respective financing agreements and their PUCN orders. In addition, certain provisions of the Federal Power Act could, depending on the interpretation thereof, limit or prohibit the payment of dividends to SPR.
          Assuming that the Utilities meet the requirements to pay dividends under the Federal Power Act and that any dividends paid to SPR are for SPR’s debt service obligations, under their material dividend restrictions, each of the Utilities may pay dividends to SPR if each such Utility can meet a 2 to 1 fixed charge coverage ratio test. If that condition is met, the amount of dividends that can be paid is less than 50% of such Utilities’ consolidated net income plus the amount of capital contributions made to such Utility by SPR for the period from the date of issuance of the respective series of Notes to the end of the most recently ended fiscal quarter. If they do not meet these conditions, the Utilities can still pay SPR’s reasonable fees and expenses, provided that each such Utility has a cash flow to fixed charge coverage ratio of at least 1.75:1 over the prior four fiscal quarters. Due to the cumulative calculation of this restriction, NPC’s Series L Notes and SPPC’s Series H Notes are effectively the most restrictive dividend limitations. In addition, under the most restrictive of their dividend restrictions, NPC and SPPC have a carve-out that permits them to pay up to $25 million to SPR, from the date of issuance of the applicable debt securities, regardless of whether the other conditions to paying dividends have been met. Although each Utility currently meets the conditions described above, a significant loss by either Utility could cause that Utility to be precluded from paying dividends to SPR until such time as that Utility again meets the coverage test. The dividend restriction in the PUCN order may be more restrictive than the Utilities’ individual dividend restrictions because the PUCN dividend restriction currently limits the amount of dividends paid to SPR collectively by the Utilities to SPR’s actual cash debt service payments, which amount may be less than the aggregate amount of the Utilities’ individual dividend restrictions. For the nine months ended September 30, 2006, SPR received approximately $48 million in dividends from the Utilities to meet its debt service obligations.
SPR’s indebtedness is effectively subordinated to the liabilities of its subsidiaries, particularly NPC and SPPC. SPR and the Utilities have the ability to issue a significant amount of additional indebtedness under the terms of their various financing agreements.
          Because SPR is a holding company, its indebtedness is effectively subordinated to the Utilities’ existing and future liabilities. SPR conducts substantially all of its operations through its subsidiaries, and thus SPR’s ability to meet its obligations under its indebtedness will be dependent on the earnings and cash flows of those subsidiaries and the ability of those subsidiaries to pay dividends or to advance or repay funds to SPR. Holders of SPR’s indebtedness will generally have a junior position to claims of SPR’s subsidiaries’ creditors, including trade creditors, debt holders, secured creditors, taxing authorities, and guarantee holders. As of October 30, 2006, the Utilities had approximately $3.5 billion of debt outstanding. Although the

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terms of SPR’s indebtedness restrict the amount of additional indebtedness that SPR and the Utilities may issue, based on SPR’s September 30, 2006 financial statements, these restrictions do not materially limit the total amount of indebtedness that may be issued by SPR, NPC and SPPC in the aggregate. Assuming an interest rate of 7.0%, these restrictions would allow SPR and the Utilities to issue up to an aggregate amount of approximately $2.2 billion as of September 30, 2006. In addition, NPC and SPPC are subject to regulatory restrictions and restrictions under the terms of their various financing agreements on their ability to issue additional indebtedness.
If Federal and/or State requirements are imposed on NPC and SPPC mandating further emission reductions, including limitations on carbon dioxide (CO2) emissions, such requirements could make some electric generating units uneconomical to maintain or operate.
          Emissions of nitrogen and sulfur oxides, mercury and particulates from fossil fueled generating plants are potentially subject to increased regulations, controls and mitigation expenses. Environmental advocacy groups and regulatory agencies in the United States have also been focusing considerable attention on carbon dioxide emissions from power generation facilities and their potential role in climate change. Although several bills have been introduced in Congress that would compel CO2 emission reductions, none have advanced through the legislature. Future changes in environmental regulations governing these pollutants could make some electric generating units uneconomical to maintain or operate. In addition, any legal obligation that would require the Utilities to substantially reduce its emissions beyond present levels could require extensive mitigation efforts and, in the case of CO2 legislation, would raise uncertainty about the future viability of fossil fuels, particularly coal, as an energy source for new and existing electric generation facilities. While mandatory requirements for further emission reductions from our fossil fleet do not appear to be imminent, we continue to monitor regulatory and legislative developments in this area.
Whether SPR can procure sufficient renewable energy sources in each compliance year to comply with the Portfolio Standard for Renewable Energy.
          Currently, the State of Nevada requires compliance with its Portfolio Standard for Renewable Energy, which mandates that a share of the energy delivered to Nevada retail customers come from renewable energy resources. This energy is to be provided via direct generation, saved from portfolio energy systems or realized from implementation of efficiency measures. The Utilities continue to take affirmative actions to fulfill the Portfolio Standard requirements on their system. However, the Utilities’ success in meeting the standard remains dependent on creation of new renewable energy projects, both owned or via output which is purchased from third parties, as well as maintenance of an ongoing positive climate for renewable energy development across Nevada.
SPR and the Utilities may be negatively affected by changes in accounting principles, particularly SFAS 158, amending FASB Statements No. 87, 88, 106, and 132-(R).
          Changes in accounting principles and practices required by the FASB, the SEC and/or the FERC can have a significant effect on SPR’s and the Utilities’ financial statements and results of operations.
          In September 2006, the FASB issued SFAS 158 (“SFAS 158”) “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans — an amendment of FASB Statements No. 87, 88, 106, and 132-(R).” SFAS 158 seeks to address certain important deficiencies the FASB finds in today’s pension accounting. Currently, changes in a plan’s assets and its benefit obligation are not being recognized as they occur and important information about postretirement plans is currently being relegated to the footnotes rather than being recognized in the financial statements. Specifically, the amendment would require SPR and the Utilities to recognize the overfunded or underfunded status of defined benefit postretirement plans in their Consolidated Balance Sheets. An overfunded status would result in the recognition of an asset and an underfunded status would result in the recognition of a liability. The adjustment to record an asset or liability would be offset by a regulatory asset or liability. If SPR and/or the Utilities were required to record a substantial liability, it could, depending upon the magnitude thereof, affect the ability of SPR and/or the Utilities to meet certain financial covenants and incurrence tests. SFAS 158’s requirement to recognize the funded status of a benefit plan and new disclosure requirements are effective as of the end of the fiscal year ending after December 15, 2006. The requirement to measure plan assets and benefit obligations as of the date of the employer’s fiscal year-end statement of financial position is effective for fiscal years ending after December 15, 2008. SPR and the Utilities are currently assessing the impact SFAS 158 will have on their consolidated financial position, the outcome of which may be material. However, management does not currently believe that any adjustment for 2006 would affect SPR’s or the Utilities’ compliance with the covenants under their respective financing agreements or their ability to incur additional indebtedness.
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
          None.
ITEM 5. OTHER INFORMATION
          On October 24, 2006, the Compensation Committee of the Board of Directors awarded Walter M. Higgins, CEO, 65,000 shares of SPR common stock pursuant to achievement of performance criteria consistent with his employment agreement dated August 4, 2006. The performance award was paid on October 26, 2006 as a combination of equivalent cash and SPR common stock.
          On November 1, 2006, Sierra Pacific Power Company filed its restated articles of incorporation with the Nevada Secretary of State. SPPC also filed a withdrawal of the certificate of designation for its’ previously issued but no longer outstanding series of preferred stock.
          The restated articles authorize the issuance of (i) Twenty million (20,000,000) shares of common stock with a par value of $3.75 per share; and (ii) Ten million (10,000,000) shares of preferred stock with no par value per share. Currently, all of SPPC’s one thousand (1,000) shares of common stock outstanding are held by SPR. SPPC has no outstanding preferred stock.
          Under the restated articles, preferred stock may be issued from time to time in one or more series in such amounts and with such terms and conditions as may be determined by the board of directors.
          The restated articles limit the liability of directors and officers to the fullest extent permitted by applicable law. The restated articles may be amended or altered by a vote of the holders of a majority of SPPC’s common stock then issued, outstanding and entitled to vote. SPPC may sell its assets upon the affirmative vote of a majority of the board of directors.
          The restated articles eliminate the restrictive covenants that were previously contained in SPPC’s articles of incorporation, including a limitation on the amount of dividends that may be paid on SPPC’s common stock and a limitation on the amount of secured debt that may be issued by SPPC.

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ITEM 6. EXHIBITS
             
    (a) Exhibits filed with this Form 10-Q:
 
           
    Sierra Pacific Power Company
 
           
 
      3.1   Restated Articles of Incorporation of Sierra Pacific Power Company.
 
           
    Nevada Power Company
 
           
 
      10.1   Financing Agreement between Clark County, Nevada and Nevada Power Company dated August 1, 2006 (relating to Clark County, Nevada $39,500,000 Pollution Control Refunding Revenue Bonds Series 2006).
 
           
 
      10.2   Financing Agreement between Coconino County, Arizona Pollution Control Corporation and Nevada Power Company dated August 1, 2006 (relating to Coconino County, Arizona Pollution Control Corporation Refunding Revenue Bonds Series 2006A).
 
           
 
      10.3   Financing Agreement between Coconino County, Arizona Pollution Control Corporation and Nevada Power Company dated August 1, 2006 (relating to Coconino County, Arizona Pollution Control Corporation $40,000,000 Pollution Control Refunding Revenue Bonds Series 2006B).
 
           
    Sierra Pacific Resources, Nevada Power Company and Sierra Pacific Power Company
 
           
 
      31.1   Certification of Chief Executive Officer of Sierra Pacific Resources Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
           
 
      31.2   Certification of Chief Executive Officer of Nevada Power Company Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
           
 
      31.3   Certification of Chief Executive Officer of Sierra Pacific Power Company Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
           
 
      31.4   Certification of Chief Financial Officer of Sierra Pacific Resources Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
           
 
      31.5   Certification of Chief Financial Officer of Nevada Power Company Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
           
 
      31.6   Certification of Chief Financial Officer of Sierra Pacific Power Company Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
           
 
      32.1   Certification of Chief Executive Officer of Sierra Pacific Resources Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
           
 
      32.2   Certification of Chief Executive Officer of Nevada Power Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
           
 
      32.3   Certification of Chief Executive Officer of Sierra Pacific Power Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
           
 
      32.4   Certification of Chief Financial Officer of Sierra Pacific Resources Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
           
 
      32.5   Certification of Chief Financial Officer of Nevada Power Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
           
 
      32.6   Certification of Chief Financial Officer of Sierra Pacific Power Company Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

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SIGNATURES
          Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned thereunto duly authorized.
         
  Sierra Pacific Resources
            (Registrant)
 
 
Date: November 2, 2006  By:   /s/ Michael W. Yackira    
    Michael W. Yackira   
    Corporate Executive Vice President Chief Financial Officer (Principal Financial Officer)   
 
     
Date: November 2, 2006  By:   /s/ John E. Brown    
    John E. Brown   
    Controller (Principal Accounting Officer)   
 
         
  Nevada Power Company
            (Registrant)
 
 
Date: November 2, 2006  By:   /s/ Michael W. Yackira    
    Michael W. Yackira   
    Executive Vice President Chief Financial Officer (Principal Financial Officer)   
 
     
Date: November 2, 2006  By:   /s/ John E. Brown    
    John E. Brown   
    Controller (Principal Accounting Officer)   
 
         
  Sierra Pacific Power Company
                 (Registrant)
 
 
Date: November 2, 2006  By:   /s/ Michael W. Yackira    
    Michael W. Yackira   
    Executive Vice President Chief Financial Officer (Principal Financial Officer)   
 
     
Date: November 2, 2006  By:   /s/ John E. Brown    
    John E. Brown   
    Controller
(Principal Accounting Officer) 
 
 

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EXHIBIT 3.1

RESTATED ARTICLES OF INCORPORATION
OF
SIERRA PACIFIC POWER COMPANY

ARTICLE I
NAME

The name of the Corporation is Sierra Pacific Power Company.

ARTICLE II
CAPITAL

2.1 Authorized Capital Stock. The amount of the total authorized capital of the Corporation consists of: (i) Twenty Million (20,000,000) shares of Common Stock with a par value of $3.75 per share; and (ii) Ten Million (10,000,000) shares of Preferred Stock with no par value per share.

2.2. Preferred Stock. The Preferred Stock may be issued by the Corporation from time to time in one or more series and in such amounts as may be determined by the Board of Directors. The designations, voting rights, amounts of preference upon distribution of assets, rates of dividends, premiums of redemption, conversion rights and other variations, if any, the qualifications, limitations or restrictions thereof, if any, of the Preferred Stock, and of each series thereof, shall be such as fixed by the Board of Directors, authority so to do being hereby expressly granted, and as stated and expressed in a resolution or resolutions adopted by the Board of Directors providing for the issue of such series of Preferred Stock (hereinafter called "Directors' Resolution").

2.3. Common Stock. Except as otherwise required by law, the Articles of Incorporation or as otherwise provided in any Director's Resolution, all shares of Common Stock shall be identical and the holders of Common Stock shall exclusively possess all voting power and each share of Common Stock shall have one vote.

2.4. Relative Ranking of Common Stock. The Common Stock is junior to the Preferred Stock and is subject to all the powers, rights, privileges, preferences and priorities of the Preferred Stock as herein set forth and as may be stated in any Directors' Resolution or Resolutions.

2.5. Assessment of Shares. The capital stock of the Corporation, after the amount of the consideration for the issuance of shares, as determined by the Board of Directors, has been paid, is not subject to assessment to pay the debts of the Corporation and no stock issued as fully paid up may ever be assessed, and the Articles of Incorporation cannot be amended in this respect.

2.6. Cumulative Voting. Unless expressly granted pursuant to any Directors' Resolution with respect to holders of one or more series of Preferred Stock, cumulative voting by any stockholder is hereby denied.


2.7 Preemptive Rights. Unless expressly granted pursuant to any Directors' Resolution with respect to holders of one or more series of Preferred Stock, no stockholder shall have any preemptive rights.

ARTICLE III
GOVERNING BOARD

3.1 Directors. The governing board of the Corporation shall be known as the Board of Directors, and its members shall be known as directors, and the number of directors of the Corporation shall be not less than three (3) nor more than fifteen (15). The exact number of directors shall be fixed from time to time exclusively by the Board of Directors pursuant to a resolution adopted by a majority of the total number of authorized directors (whether or not there exist any vacancies in previously authorized directorships at the time any such resolution is presented to the Board of Directors for adoption).

3.2. Increase or Decrease of Directors. The minimum and maximum number of Directors of the Corporation may be increased or decreased from time to time as provided in the bylaws of the Corporation.

ARTICLE IV
DIRECTORS' AND OFFICERS' LIABILITY

To the fullest extent permitted by applicable law, a director or officer is not individually liable to the Corporation, its stockholders or creditors for any damages as a result of any act or failure to act in his capacity as a director or officer unless it is proven that: (a) his act or refusal to act constituted a breach of his fiduciary duties as a director or officer; and (b) his breach of those duties involved intentional misconduct, fraud or a knowing violation of law. In the event that Nevada law is amended to authorize the further elimination or limitation of liability of directors or officers, then this Article IV shall also be deemed amended to provide for the elimination or limitation of liability to the fullest extent permitted by Nevada law, as so amended.

ARTICLE V
AMENDMENTS TO ARTICLES OF INCORPORATION

The provisions of the Articles of Incorporation, except as expressly otherwise herein provided or otherwise required by law or in a Directors' Resolution, may be amended or altered by a vote of the holders of a majority of the Common Stock of the Corporation then issued, outstanding and entitled to vote.

2

ARTICLE VI
SALE OF CORPORATION'S ASSETS

The Corporation may sell, lease or exchange all of the Corporation's property and assets, including the Corporation's good will and corporate franchises, upon the affirmative vote of a majority of the Board of Directors and no vote of the stockholders shall be required.

ARTICLE VII
DISTRIBUTIONS

The Corporation is specifically authorized to make Distributions, as defined in Nevada Revised Statutes Section 78.191, as determined from time to time by the Board of Directors, unless, after giving effect to such Distribution, the Corporation would not be able to pay its debts as they become due in the usual course of business.

IN WITNESS WHEREOF, SIERRA PACIFIC POWER COMPANY has caused this

Certificate to be signed by its President this 25th day of October, 2006.

SIERRA PACIFIC POWER COMPANY

By: /s/Jeff Ceccarelli
    --------------------------------
    Jeff Ceccarelli, President

3

Exhibit 10.1


FINANCING AGREEMENT

Dated as of August 1, 2006

By and Between

CLARK COUNTY, NEVADA

and

NEVADA POWER COMPANY

RELATING TO
POLLUTION CONTROL REFUNDING REVENUE BONDS
(NEVADA POWER COMPANY PROJECT)

SERIES 2006


The amounts payable to the Issuer (except for amounts payable to, and certain rights and privileges of, the Issuer under Sections 4.2(e), 4.2(g), 5.3 and 6.4 hereof and any rights of the Issuer to receive any notices, certificates, requests, requisitions or communications hereunder) and certain other rights of the Issuer under this Financing Agreement have been pledged and assigned under the Indenture of Trust dated as of August 1, 2006, between the Issuer and U.S. Bank National Association, as Trustee.


FINANCING AGREEMENT


TABLE OF CONTENTS

(This Table of Contents is not a part of this Agreement and is only for convenience of reference).

SECTION                                     HEADING                         PAGE
-------                                     -------                         ----
ARTICLE I          DEFINITIONS...........................................      1

ARTICLE II         REPRESENTATIONS.......................................      5
   Section 2.1.    Representations and Covenants by the Issuer...........      5
   Section 2.2.    Representations by the Company........................      5

ARTICLE III        ISSUANCE OF THE BONDS.................................      6
   Section 3.1.    Agreement to Issue Bonds; Application of Bond
                      Proceeds...........................................      6
   Section 3.2.    Deposit of Additional Funds by Company; Redemption of
                      Prior Bonds........................................      6
   Section 3.3.    Investment of Moneys in the Bond Fund and the Prior
                      Bonds Redemption Fund..............................      6
   Section 3.4.    Tax Exempt Status of Bonds............................      7

ARTICLE IV         LOAN AND PROVISIONS FOR REPAYMENT.....................      8
   Section 4.1.    Loan of Bond Proceeds.................................      8
   Section 4.2.    Loan Repayments and Other Amounts Payable.............      8
   Section 4.3.    No Defense or Set-Off.................................     10
   Section 4.4.    Payments Pledged and Assigned.........................     10
   Section 4.5.    Payment of the Bonds and Other Amounts................     10

ARTICLE V          SPECIAL COVENANTS AND AGREEMENTS......................     11
   Section 5.1.    Company to Maintain its Corporate Existence;
                      Conditions Under Which Exceptions Permitted........     11
   Section 5.2.    Annual Statement......................................     12
   Section 5.3.    Maintenance and Repair; Insurance; Taxes;
                      Disposition........................................     12
   Section 5.4.    Recordation and Other Instruments.....................     13
   Section 5.5.    No Warranty by the Issuer.............................     13
   Section 5.6.    Agreement as to Ownership of the Project..............     13
   Section 5.7.    Company to Furnish Notice of Rate Period Adjustments;
                      Liquidity Facility Requirements; Auction Rate
                      Period Provisions..................................     13
   Section 5.8.    Information Reporting, Etc............................     14

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   Section 5.9.    Limited Liability of Issuer...........................     14
   Section 5.10.   Inspection of Project.................................     14

ARTICLE VI         EVENTS OF DEFAULT AND REMEDIES........................     15
   Section 6.1.    Events of Default Defined.............................     15
   Section 6.2.    Remedies on Default...................................     16
   Section 6.3.    No Remedy Exclusive...................................     17
   Section 6.4.    Agreement to Pay Fees and Expenses of Counsel.........     17
   Section 6.5.    No Additional Waiver Implied by One Waiver; Consents
                      to Waivers.........................................     17

ARTICLE VII        OPTIONS AND OBLIGATIONS OF COMPANY; PREPAYMENTS;
                      REDEMPTION OF BONDS................................     18
   Section 7.1.    Option to Prepay......................................     18
   Section 7.2.    Obligation to Prepay..................................     18
   Section 7.3.    Notice of Prepayment..................................     18

ARTICLE VIII       MISCELLANEOUS.........................................     19
   Section 8.1.    Notices...............................................     19
   Section 8.2.    Assignments...........................................     19
   Section 8.3.    Severability..........................................     19
   Section 8.4.    Execution of Counterparts.............................     19
   Section 8.5.    Amounts Remaining in Bond Fund........................     19
   Section 8.6.    Amendments, Changes and Modifications.................     20
   Section 8.7.    Governing Law.........................................     20
   Section 8.8.    Authorized Issuer and Company Representatives.........     20
   Section 8.9.    Term of the Agreement.................................     20
   Section 8.10.   Cancellation at Expiration of Term....................     20
   Section 8.11.   Bond Insurance........................................     20

Signature................................................................     22

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THIS FINANCING AGREEMENT made and entered into as of August 1, 2006, by and between CLARK COUNTY, Nevada, a political subdivision of the State of Nevada, party of the first part (hereinafter referred to as the "Issuer"), and NEVADA POWER COMPANY, a corporation duly organized and existing under the laws of the State of Nevada, party of the second part (hereinafter referred to as the "Company"),

WITNESSETH:

In consideration of the respective representations and agreements hereinafter contained, the parties hereto agree as follows (provided, that in the performance of the agreements of the Issuer herein contained, any obligation it may thereby incur shall not constitute or give rise to a pecuniary liability or a charge upon its general credit or against its taxing powers but shall be payable solely out of the Revenues (as hereinafter defined) derived from this Financing Agreement and the Bonds, as hereinafter defined):

ARTICLE I

DEFINITIONS

The following terms shall have the meanings specified in this Article unless the context clearly requires otherwise. The singular shall include the plural and the masculine shall include the feminine.

"Act" means the County Economic Development Revenue Bond Law, as amended, contained in Sections 244A.669 to 244A.763, inclusive, of the Nevada Revised Statutes.

"Administrative Expenses" means the reasonable and necessary expenses
(including the reasonable value of employee services and fees of Counsel)
incurred by the Issuer in connection with the Bonds, this Agreement, the Indenture and any transaction or event contemplated by this Agreement or the Indenture.

"Agreement" means this Financing Agreement by and between the Issuer and the Company, as from time to time amended and supplemented.

"Auction Agent" means the auction agent appointed in accordance with the provisions of the Indenture.

"Authorized Company Representative" means any person who, at the time, shall have been designated to act on behalf of the Company by a written certificate furnished to the Issuer, the Remarketing Agent and the Trustee containing the specimen signature of such person and signed on behalf of the Company by any officer of the Company. Such certificate may designate an alternate or alternates.


"Authorized Issuer Representative" means any person at the time designated to act on behalf of the Issuer by a written certificate furnished to the Company and the Trustee containing the specimen signature of such person and signed on behalf of the Issuer by its Chairman. Such certificate may designate an alternate or alternates.

"Bankruptcy Code" means the United States Bankruptcy Reform Act of 1978, as amended from time to time, or any substitute or replacement legislation.

"Bond" or "Bonds" means the Issuer's bonds identified in Section 2.02 of the Indenture.

"Bond Counsel" means the Counsel who renders the opinion as to the tax-exempt status of interest on the Bonds or other nationally recognized municipal bond counsel mutually acceptable to the Issuer and the Company.

"Bond Fund" means the fund created by Section 6.02 of the Indenture.

"Code" means the United States Internal Revenue Code of 1986, as amended, and regulations promulgated or proposed thereunder and, to the extent applicable to the Bonds or the Prior Bonds, the 1954 Code.

"Company" means Nevada Power Company, a Nevada corporation, and its successors and assigns and any surviving, resulting or transferee corporation as permitted in Section 5.1 hereof.

"Counsel" means an attorney at law or a firm of attorneys (who may be an employee of or counsel to the Issuer or the Company or the Trustee) duly admitted to the practice of law before the highest court of any state of the United States of America or of the District of Columbia.

"Delivery Agreement" means the Delivery Agreement of even date herewith, between the Company and the Trustee, as amended, supplemented or restated from time to time, pursuant to which the Company will issue to the Trustee the G&R Notes at the time of the initial authentication and delivery of the Bonds.

"Extraordinary Services" and "Extraordinary Expenses" means all services rendered and all expenses (including fees and expenses of Counsel) incurred under the Indenture and the Tax Agreement other than Ordinary Services and Ordinary Expenses.

"Force Majeure" means acts of God, strikes, lockouts or other industrial disturbances; acts of public enemies; orders or restraints of any kind of the governments of the United States or of the State, or any of their departments, agencies or officials, or any civil or military authority; insurrections; riots; landslides; lightning; earthquakes; fires; tornadoes; volcanoes; storms; droughts; floods; explosions, breakage, or malfunction or accident to machinery, transmission lines, pipes or canals, even if resulting from negligence; civil disturbances; or any other cause not reasonably within the control of the Company.

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"G&R Indenture" means the General and Refunding Mortgage Indenture dated as of May 1, 2001 between the Company and the G&R Trustee, as amended and supplemented.

"G&R Notes" means the Company's $39,500,000 General and Refunding Mortgage Note, Series P, No. P-1, due January 1, 2036.

"G&R Trustee" means The Bank of New York, as trustee under the G&R Indenture or any successor trustee.

"Governing Body" means the Board of County Commissioners of the Issuer.

"Hereof," "herein," "hereunder" and other words of similar import refer to this Agreement as a whole.

"Indenture" means the Indenture of Trust relating to this Agreement between the Issuer and U.S. Bank National Association, as Trustee, of even date herewith, pursuant to which the Bonds are authorized to be issued, including any indentures supplemental thereto or amendatory thereof.

"Issuer" means Clark County, Nevada, and any successor body to the duties or functions of the Issuer.

"1954 Code" means the Internal Revenue Code of 1954, as amended, and the applicable regulations thereunder.

"Ordinary Services" and "Ordinary Expenses" means those services normally rendered and those expenses including fees and expenses of Counsel, normally incurred by a trustee or paying agent under instruments similar to the Indenture and the Tax Agreement.

"Owner" or "owner of Bonds" means the Person or Persons in whose name or names a Bond shall be registered on books of the Issuer kept by the Registrar for that purpose in accordance with the terms of the Indenture.

"Person" means natural persons, firms, partnerships, associations, corporations, trusts and public bodies.

"Prior Agreement" means the Financing Agreement, dated as of June 1, 1992, between the Issuer and the Company relating to the Prior Bonds.

"Prior Bonds" means the Issuer's Pollution Control Refunding Revenue Bonds (Nevada Power Company Project) Series 1992B, currently outstanding in the aggregate principal amount of $39,500,000.

"Prior Bond Fund" means the fund established pursuant to Section 5.02 of the Prior Indenture.

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"Prior Indenture" means the Indenture of Trust dated as of June 1, 1992 between the Issuer and The Bank of New York (successor to United States Trust Company of New York), as trustee, pursuant to which the Prior Bonds were issued.

"Prior Trustee" means The Bank of New York, as current trustee under the Prior Indenture.

"Project" means the Project as defined in the Prior Agreement.

"Project Certificate" means the Company's Project and Refunding Certificate, delivered concurrently with the issuance of the Bonds, with respect to certain facts which are within the knowledge of the Company and certain reasonable assumptions of the Company, to enable Chapman and Cutler LLP, as Bond Counsel, to determine that interest on the Bonds is not includable in the gross income of the Owners of the Bonds for federal income tax purposes.

"Rebate Fund" means the Rebate Fund, if any, created and established pursuant to the Tax Agreement.

"Regulated Utility Company" means a corporation (or a limited liability company) engaged in the distribution of electricity and which is regulated by the public utility commission where its primary electricity distribution business is located.

"Remarketing Agent" means the remarketing agent, if any, appointed in accordance with Section 4.08 of the Indenture and any permitted successor thereto.

"Reorganization" means any reorganization, consolidation or merger of the Company or its affiliates, or any transfer or lease of a substantial portion of the assets of the Company or its affiliates, as a result of which the obligor under the Agreement or the obligor on the G&R Notes ceases to be a Regulated Utility Company.

"State" means the State of Nevada.

"Tax Agreement" means the Tax Exemption Certificate and Agreement with respect to the Bonds, dated the date of delivery of the Bonds, among the Company, the Issuer and the Trustee, as from time to time amended and supplemented.

"Trust Estate" means the property conveyed to the Trustee pursuant to the Granting Clauses of the Indenture.

"Trustee" means U.S. Bank National Association, as Trustee under the Indenture, and any successor Trustee appointed pursuant to Section 10.06 or 10.09 of the Indenture at the time serving as Trustee thereunder, and any separate or co-trustee serving as such thereunder.

All other terms used herein which are defined in the Indenture shall have the same meanings assigned them in the Indenture unless the context otherwise requires.

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ARTICLE II

REPRESENTATIONS

SECTION 2.1. REPRESENTATIONS AND COVENANTS BY THE ISSUER. The Issuer makes the following representations and covenants as the basis for the undertakings on its part herein contained:

(a) The Issuer is a duly organized and existing political subdivision of the State of Nevada. Under the provisions of the Act, the Issuer is authorized to enter into the transactions contemplated by this Agreement, the Indenture and the Tax Agreement and to carry out its obligations hereunder and thereunder. The Issuer has duly authorized the execution and delivery of this Agreement, the Indenture and the Tax Agreement.

(b) The Bonds are to be issued under and secured by the Indenture, pursuant to which certain of the Issuer's interests in this Agreement and the Revenues derived by the Issuer pursuant to this Agreement will be pledged and assigned as security for payment of the principal of, premium, if any, and interest on, the Bonds.

(c) The Governing Body of the Issuer has found that the issuance of the Bonds will further the public purposes of the Act.

(d) The Issuer has not assigned and will not assign any of its interests in this Agreement other than pursuant to the Indenture.

(e) No member of the Governing Body of the Issuer, nor any other officer of the Issuer, has any interest, financial (other than ownership of less than one-tenth of one percent (.1%) of the publicly traded securities issued by the Company or its affiliated corporations), employment or other, in the Company or in the transactions contemplated hereby.

SECTION 2.2. REPRESENTATIONS BY THE COMPANY. The Company makes the following representations as the basis for the undertakings on its part herein contained:

(a) The Company is a corporation duly incorporated under the laws of the State and is in good standing in the State, is qualified to do business as a foreign corporation in all other states and jurisdictions wherein the nature of the business transacted by the Company or the nature of the property owned or leased by it makes such licensing or qualification necessary, and has the power to enter into and by proper corporate action has been duly authorized to execute and deliver this Agreement and the Tax Agreement.

(b) Neither the execution and delivery of this Agreement or the Tax Agreement, the consummation of the transactions contemplated hereby and thereby, nor the fulfillment of or compliance with the terms and conditions of this Agreement and the Tax Agreement, conflicts with or results in a breach of any of the terms, conditions or

-5-

provisions of any corporate restriction or any agreement or instrument to which the Company is now a party or by which it is bound, or constitutes a default under any of the foregoing, or results in the creation or imposition of any lien, charge or encumbrance whatsoever upon any of the property or assets of the Company under the terms of any instrument or agreement other than the Indenture.

(c) The statements, information and descriptions contained in the Project Certificate and the Tax Agreement, as of the date hereof and at the time of the delivery of the Bonds to the Underwriter, are and will be true, correct and complete, do not and will not contain any untrue statement or misleading statement of a material fact, and do not and will not omit to state a material fact required to be stated therein or necessary to make the statements, information and descriptions contained therein, in the light of the circumstances under which they were made, not misleading.

ARTICLE III

ISSUANCE OF THE BONDS

SECTION 3.1. AGREEMENT TO ISSUE BONDS; APPLICATION OF BOND PROCEEDS. In order to provide funds to lend to the Company to refund the Prior Bonds as provided in Section 4.1 hereof, the Issuer agrees that it will issue under the Indenture, sell and cause to be delivered to the Underwriter, its Bonds in the aggregate principal amount of $39,500,000, bearing interest and maturing as set forth in the Indenture. The Issuer will thereupon deposit the proceeds received from the sale of the Bonds as follows: (1) in the Bond Fund, a sum equal to the accrued interest, if any, paid by the Underwriter; and (2) $39,500,000 in the Prior Bonds Redemption Fund to be remitted by the Trustee to the Prior Trustee for deposit in the Prior Bond Fund to be used to pay to the owners thereof the principal of the Prior Bonds upon redemption thereof.

SECTION 3.2. DEPOSIT OF ADDITIONAL FUNDS BY COMPANY; REDEMPTION OF PRIOR BONDS. The Company covenants that such additional amounts as may be required to redeem the Prior Bonds in accordance with Section 3.1 hereof will be timely deposited with the Prior Trustee pursuant to the Prior Indenture for such purpose. Income derived from the investment of the proceeds of the Bonds deposited in the Prior Bonds Redemption Fund will be used, to the extent available, to satisfy the obligations of the Company specified in this Section
3.2. The Company covenants that it will cause the Prior Bonds to be redeemed within 90 days after the issuance and delivery of the Bonds.

SECTION 3.3. INVESTMENT OF MONEYS IN THE BOND FUND AND THE PRIOR BONDS REDEMPTION FUND. Except as otherwise herein provided, any moneys held as a part of the Bond Fund and the Prior Bonds Redemption Fund shall be invested or reinvested by the Trustee at the specific written direction of an Authorized Company Representative as to specific investments, to the extent permitted by law, in:

(a) bonds or other obligations of the United States of America;

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(b) bonds or other obligations, the payment of the principal of and interest on which is unconditionally guaranteed by the United States of America;

(c) obligations issued or guaranteed as to principal and interest by any agency or person controlled or supervised by and acting as an instrumentality of the United States of America pursuant to authority granted by the Congress of the United States of America;

(d) obligations issued or guaranteed by any state of the United States of America, or any political subdivision of any such state, or in funds consisting of such obligations to the extent described in Section 1.148-8(e)(3)(iii) of the 1992 Treasury Regulations;

(e) prime commercial paper;

(f) prime finance company paper;

(g) bankers' acceptances drawn on and accepted by commercial banks;

(h) repurchase agreements fully secured by obligations issued or guaranteed as to principal and interest by the United States of America or by any person controlled or supervised by and acting as an instrumentality of the United States of America pursuant to authority granted by the Congress of the United States of America;

(i) certificates of deposit issued by commercial banks, including banks domiciled outside of the United States of America; and

(j) units of taxable government money market portfolios composed of obligations guaranteed as to principal and interest by the United States of America or repurchase agreements fully collateralized by such obligations.

The investments so purchased shall be held by the Trustee and shall be deemed at all times a part of the fund for which they were made and the interest accruing thereon and any profit realized therefrom shall be credited to such fund, subject to the provisions of the Tax Agreement. The Company agrees that to the extent any moneys in the Bond Fund represent moneys held for the payment of particular Bonds, or to the extent that any moneys are held for the payment of the purchase price of Bonds pursuant to Article IV of the Indenture, such moneys shall not be invested.

SECTION 3.4. TAX EXEMPT STATUS OF BONDS. The Company covenants and agrees that it has not taken or permitted and will not take or permit any action which results in interest paid on the Bonds being included in gross income of the holders or beneficial owners of the Bonds for purposes of federal income taxation (other than a holder or beneficial owner who is a "substantial user" of the Project or a "related person" within the meaning of Section 103(b)(13) of the 1954 Code). The Company covenants that none of the proceeds of the Bonds or the payments to be made under this Agreement, or any other funds which may be deemed to be

-7-

proceeds of the Bonds pursuant to Section 148(a) of the Code, will be invested or used in such a way, and that no actions will be taken or not taken, as to cause the Bonds to be treated as "arbitrage bonds" within the meaning of Section 148(a) of the Code. Without limiting the generality of the foregoing, the Company covenants and agrees that it will comply with the provisions of the Tax Agreement and the Project Certificate.

ARTICLE IV

LOAN AND PROVISIONS FOR REPAYMENT

SECTION 4.1. LOAN OF BOND PROCEEDS. (a) The Issuer agrees, upon the terms and conditions in this Agreement, to lend to the Company the proceeds (exclusive of accrued interest, if any) received by the Issuer from the sale of the Bonds in order to refund the Prior Bonds, and the Company agrees to apply the gross proceeds of such loan to the refunding of the Prior Bonds as set forth in Sections 3.1 and 3.2 hereof.

(b) The Issuer and the Company expressly reserve the right to enter into, to the extent permitted by law, an agreement or agreements other than this Agreement, with respect to the issuance by the Issuer, under an indenture or indentures other than the Indenture, of obligations to provide additional funds to refund all or any principal amount of the Bonds.

SECTION 4.2. LOAN REPAYMENTS AND OTHER AMOUNTS PAYABLE. (a) On each date provided in or pursuant to the Indenture for the payment (whether at maturity or upon redemption or acceleration) of principal of, and premium, if any, and interest on, the Bonds, until the principal of, and premium, if any, and interest on, the Bonds shall have been fully paid or provision for the payment thereof shall have been made in accordance with the Indenture, the Company shall pay to the Trustee in immediately available funds, for deposit in the Bond Fund, as a repayment installment of the loan of the proceeds of the Bonds pursuant to
Section 4.1(a) hereof, a sum equal to the amount payable on such date (whether at maturity or upon redemption or acceleration) as principal of, and premium, if any, and interest on, the Bonds as provided in the Indenture; provided, however, that the obligation of the Company to make any such repayment installment shall be reduced by the amount of any moneys then on deposit in the Bond Fund and available for such payment; and provided further, that the obligation of the Company to make any such payment shall be deemed to be satisfied and discharged to the extent provided for under a liquidity facility (if applicable) or under the G&R Notes.

(b) The Company shall pay to the Trustee amounts equal to the amounts to be paid by the Trustee for the purchase of Bonds pursuant to Article IV of the Indenture. Such amounts shall be paid by the Company to the Trustee in immediately available funds on the date such payments pursuant to
Section 4.05 of the Indenture are to be made; provided, however, that the obligation of the Company to make any such payment shall be deemed to be satisfied and discharged to the extent moneys are available from the source described in clause (i) of Section 4.05(a) of the Indenture and to the extent moneys are available under any liquidity facility (if applicable).

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(c) The Company agrees to pay to the Trustee (i) the fees of the Trustee for the Ordinary Services rendered by it and an amount equal to the Ordinary Expenses incurred by it under the Indenture and the Tax Agreement, as and when the same become due, and (ii) the reasonable fees, charges and expenses of the Trustee for reasonable Extraordinary Services and Extraordinary Expenses, as and when the same become due, incurred under the Indenture and the Tax Agreement. The Company agrees that the Trustee, its officers, agents, servants and employees, shall not be liable for, and agrees that it will at all times indemnify and hold harmless the Trustee, its officers, agents, servants and employees against, and pay all expenses of the Trustee, its officers, agents, servants and employees, relating to any lawsuit, proceeding or claim and resulting from any action or omission taken or made by or on behalf of the Trustee, its officers, agents, servants and employees pursuant to this Agreement, the Indenture or the Tax Agreement, that may be occasioned by any cause (other than the negligence or willful misconduct of the Trustee, its officers, agents, servants and employees). In case any action shall be brought against the Trustee in respect of which indemnity may be sought against the Company, the Trustee shall promptly notify the Company in writing and the Company shall be entitled to assume control of the defense thereof, including the employment of Counsel reasonably satisfactory to the Trustee and the payment of all expenses. The Trustee shall have the right to employ separate Counsel in any such action and participate in the defense thereof, but the fees and expenses of such Counsel shall be paid by the Trustee unless (i) the employment of such Counsel has been authorized by the Company, (ii) the Trustee has determined (which determination may be based upon an opinion of counsel delivered to the Trustee and furnished to the Company) that there may be a conflict of interest of such Counsel retained by the Company between the Company and the Trustee in the conduct of such defense, (iii) the Company ceases or terminates the employment of such Counsel retained by the Company or (iv) such Counsel retained by the Company withdraws with respect to such defense. The Company shall not be liable for any settlement of any such action without its consent, but if any such action is settled with the consent of the Company or if there be final judgment for the plaintiff in any such action, the Company agrees to indemnify and hold harmless the Trustee from and against any loss or liability by reason of such settlement or final judgment. The Company agrees that the indemnification provided herein shall survive the termination of this Agreement or the Indenture or the resignation of the Trustee.

(d) The Company agrees to pay all costs incurred in connection with the issuance of the Bonds from sources other than Bond proceeds and the Issuer shall have no obligation with respect to such costs.

(e) The Company agrees to indemnify and hold harmless the Issuer and any member, officer, official or employee of the Issuer against any and all losses, costs, charges, expenses, judgments and liabilities created by or arising out of this Agreement, the Indenture, the Remarketing Agreement, the Auction Agreement, the Bond Purchase Agreement, any Broker-Dealer Agreement or the Tax Agreement or otherwise incurred in connection with the issuance of the Bonds. The Company agrees to pay the Issuer its Closing Fee in connection with the issuance of the Bonds in the amount of $39,500. The Issuer may submit to the Company periodic statements, not more frequently than monthly, for its Administrative Expenses and the Company shall make payment to the Issuer of the full amount of each such statement within 30 days after the Company receives such statement.

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(f) The Company agrees to pay (i) to the Remarketing Agent the reasonable fees, charges and expenses of such Remarketing Agent and (ii) to the Auction Agent the reasonable fees, charges and expenses of such Auction Agent, and the Issuer shall have no obligation or liability with respect to the payment of any such fees, charges or expenses.

(g) In the event the Company shall fail to make any of the payments required by (a) or (b) of this Section 4.2, the payment so in default shall continue as an obligation of the Company until the amount in default shall have been fully paid and the Company will pay interest to the extent permitted by law, on any overdue amount at the rate of interest borne by the Bonds on the date on which such amount became due and payable until paid. In the event that the Company shall fail to make any of the payments required by (c), (d), (e) or (f) of this Section 4.2, the payment so in default shall continue as an obligation of the Company until the amount in default shall have been fully paid, and the Company agrees to pay the same with interest thereon to the extent permitted by law at a rate 1% above the rate of interest then charged by the Trustee on 90-day commercial loans to its prime commercial borrowers until paid.

SECTION 4.3. NO DEFENSE OR SET-OFF. The obligation of the Company to make the payments pursuant to this Agreement shall be absolute and unconditional without defense or set-off by reason of any default by the Issuer under this Agreement or under any other agreement between the Company and the Issuer or for any other reason, it being the intention of the parties that the payments required hereunder will be paid in full when due without any delay or diminution whatsoever.

SECTION 4.4. PAYMENTS PLEDGED AND ASSIGNED. It is understood and agreed that all payments required to be made by the Company pursuant to Section 4.2 hereof (except payments made to the Trustee pursuant to Section 4.2(c) hereof, to the Remarketing Agent and the Auction Agent pursuant to Section 4.2(f) hereof, to the Issuer pursuant to Section 4.2(e) hereof and to any or all the Issuer and the Trustee and the Remarketing Agent pursuant to Section 4.2(g) hereof) and certain rights of the Issuer hereunder are pledged and assigned by the Indenture. The Company consents to such pledge and assignment. The Issuer hereby directs the Company and the Company hereby agrees to pay or cause to be paid to the Trustee all said amounts except payments to be made to the Remarketing Agent and the Auction Agent pursuant to Section 4.2(f) hereof and payments to be made to the Issuer pursuant to Sections 4.2(e) and (g) hereof. The Project will not constitute any part of the security for the Bonds, except to the extent that the Trustee as holder of G&R Notes has a lien on property under the G&R Indenture.

SECTION 4.5. PAYMENT OF THE BONDS AND OTHER AMOUNTS. The Bonds and interest and premium, if any, thereon shall be payable solely from (i) payments made by the Company to the Trustee under Section 4.2(a) hereof and (ii) other moneys on deposit in the Bond Fund and available therefor.

Payments of principal of, and premium, if any, or interest on, the Bonds with moneys in the Bond Fund constituting proceeds from the sale of the Bonds or earnings on investments made under the provisions of the Indenture shall be credited against the obligation to pay required by Section 4.2(a) hereof.

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Whenever any Bonds are redeemable in whole or in part at the option of the Company, the Trustee, on behalf of the Issuer, shall redeem the same upon the request of the Company and such redemption (unless conditional) shall be made from payments made by the Company to the Trustee under Section 4.2(a) hereof equal to the redemption price of such Bonds.

Whenever payment or provision therefor has been made in respect of the principal of, or premium, if any, or interest on, all or any portion of the Bonds in accordance with the Indenture (whether at maturity or upon redemption or acceleration or upon provision for payment in accordance with Article VIII of the Indenture), payments shall be deemed paid to the extent such payment or provision therefor has been made and is considered to be a payment of principal of, or premium, if any, or interest on, such Bonds. If such Bonds are thereby deemed paid in full, the Trustee shall notify the Company and the Issuer that such payment requirement has been satisfied. Subject to the foregoing, or unless the Company is entitled to a credit under this Agreement or the Indenture, all payments shall be in the full amount required by Section 4.2(a) hereof.

ARTICLE V

SPECIAL COVENANTS AND AGREEMENTS

SECTION 5.1. COMPANY TO MAINTAIN ITS CORPORATE EXISTENCE; CONDITIONS UNDER WHICH EXCEPTIONS Permitted. The Company agrees that during the term of this Agreement, it will maintain its corporate existence and its good standing in the State, will not dissolve or otherwise dispose of all or substantially all of its assets and will not consolidate with or merge into another corporation unless the acquirer of its assets or the corporation with which it shall consolidate or into which it shall merge shall (i) be a corporation organized under the laws of one of the states of the United States of America, (ii) be qualified to do business in the State, and (iii) assume in writing all of the obligations of the Company under this Agreement and the Tax Agreement. Any transfer of all or substantially all of the Company's generation assets shall not be deemed to constitute a "disposition of all or substantially all of the Company's assets" within the meaning of the preceding paragraph. Any such transfer of the Company's generation assets shall not relieve the Company of any of its obligations under this Agreement.

The Company hereby agrees that so long as any of the Bonds are insured by a Bond Insurance Policy issued by the Bond Insurer and the Bond Insurer shall not have failed to comply with its payment obligations under such Policy, in the event of a Reorganization, unless otherwise consented to by the Bond Insurer, the obligations of the Company under, and in respect of, the Bonds, the G&R Notes, the G&R Indenture and the Agreement shall be assumed by, and shall become direct and primary obligations of, a Regulated Utility Company such that at all times the obligor under this Agreement and the obligor on the G&R Notes is a Regulated Utility Company. The Company shall deliver to the Bond Insurer a certificate of the president, any vice president or the treasurer and an opinion of counsel reasonably acceptable to the Bond Insurer stating in each case that such Reorganization complies with the provisions of this paragraph.

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The Company need not comply with any of the provisions of this Section 5.1 if, at the time of such merger or consolidation, the Bonds will be defeased as provided in Article VIII of the Indenture. The Company need not comply with the provisions of the second paragraph of this Section 5.1 if the Bonds are redeemed as provided in Section 3.01(B)(3) of the Indenture or if the Bond Insurance Policy is terminated as described in Section 3.06 of the Indenture in connection with a purchase of the Bonds by the Company in lieu of their redemption.

SECTION 5.2. ANNUAL STATEMENT. The Company agrees to have an annual audit made by its regular independent certified public accountants and to furnish the Trustee (within 30 days after receipt by the Company) with a balance sheet and statement of income and surplus showing the financial condition of the Company and its consolidated subsidiaries, if any, at the close of each fiscal year and the results of operations of the Company and its consolidated subsidiaries, if any, for each fiscal year, accompanied by a report of said accountants that such statements have been prepared in accordance with generally accepted accounting principles. The Company's obligations under this Section 5.2 may be satisfied by delivering a copy of the Company's Annual Report on Form 10-K to the Trustee within 10 days after it is filed with the Securities and Exchange Commission.

Delivery of such reports, information and documents to the Trustee is for informational purposes only and the Trustee's receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company's compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on officer's certificates).

SECTION 5.3. MAINTENANCE AND REPAIR; INSURANCE; TAXES; DISPOSITION. For so long as the Company shall own the Project, (i) the Company shall maintain or cause to be maintained the Project in good repair and keep it properly insured and shall promptly pay or cause to be paid all costs thereof, and (ii) the Company shall promptly pay or cause to be paid all installments of taxes, installments of special assessments, and all governmental, utility and other charges with respect to the Project, when due. The Company may, at its own expense and in its own name in good faith contest or appeal any such taxes, assessments or other charges, or installments thereof, but shall not permit any such taxes, assessments or other charges, or installments thereof, to remain unpaid if such nonpayment shall subject the Project or any part thereof to loss or forfeiture. The Company, subject to the provisions of Section 3.4 hereof, is not required by this Agreement to operate, or cause to be operated, any portion of the Project after the Company shall deem in its discretion that such continued operation by the Company is not advisable, and in such event the Company may sell, lease or retire all or any such portion of the Project. Subject to the provisions of Section 3.4 hereof, the net proceeds from such sale, lease or other disposition, if any, shall belong to, and may be used for any lawful purpose by, the Company. Upon disposition of the Project in its entirety by the Company in accordance with this Section 5.3, the Company shall be discharged from its obligations to operate, maintain, repair and insure the Project as set forth in this Section 5.3. Any such sale, lease or other disposition shall comply with the requirements of the Tax Agreement. Under any and all circumstances, the Issuer shall have no obligation whatsoever with respect to the operation, maintenance, repair or insurance of the Project.

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SECTION 5.4. RECORDATION AND OTHER INSTRUMENTS. The Company shall cause such security agreements, financing statements and all supplements thereto and other instruments as may be required from time to time to be kept, to be recorded and filed in such manner and in such places as may be required by law in order to fully preserve, protect and perfect the security of the Owners of the Bonds and the rights of the Trustee, and to perfect the security interest created by the Indenture. The Company agrees to abide by the provisions of
Section 5.11 of the Indenture to the extent applicable to the Company.

SECTION 5.5. NO WARRANTY BY THE ISSUER. The Issuer makes no warranty, either express or implied, as to the Project or that it will be suitable for the purposes of the Company or needs of the Company.

SECTION 5.6. AGREEMENT AS TO OWNERSHIP OF THE PROJECT. The Issuer and the Company agree that title to the Project shall not be in the Issuer, and that the Issuer shall have no interest in the Project.

SECTION 5.7. COMPANY TO FURNISH NOTICE OF RATE PERIOD ADJUSTMENTS; LIQUIDITY FACILITY REQUIREMENTS; AUCTION RATE PERIOD PROVISIONS. The Company is hereby granted the option to designate from time to time changes in Rate Periods (and to rescind such changes) in the manner and to the extent set forth in
Section 2.03 of the Indenture. In the event the Company elects to exercise any such option, the Company agrees that it shall cause notices of adjustments of Rate Periods (or rescissions thereof) to be given to the Issuer, the Trustee and the Remarketing Agent in accordance with Section 2.03(a), (b), (c), (d) or (e) of the Indenture, and a copy of each such notice shall also be given at such time to S&P and Moody's.

The Company hereby agrees that, so long as the Bonds are insured by a Bond Insurance Policy issued by the Bond Insurer and notwithstanding the provisions of Section 2.03 of the Indenture, it shall not give notice of its intention to adjust the Rate Period for the Bonds to a Daily Rate Period, a Weekly Rate Period or a Flexible Rate Period until the Company shall provide a liquidity facility reasonably acceptable to the Bond Insurer from a liquidity facility provider reasonably acceptable to the Bond Insurer in accordance with the Bond Insurer's liquidity facility requirements to be effective on the related date of adjustment.

If during any Auction Rate Period (i) consisting of Auction Periods of 35 days or less, the Bonds shall bear interest at the Maximum Interest Rate for a period in excess of 180 days, or (ii) consisting of one Auction Period of 180 days or more, the Bonds shall bear interest at the Maximum Interest Rate for such Period, the Company shall notify the Bond Insurer in writing of such event and agrees to cooperate with the Bond Insurer to take all steps reasonably necessary to adjust the Rate Period on the Bonds as soon as reasonably practicable in accordance with the provisions of the Indenture to the Rate Period which the Remarketing Agent advises the Company and the Bond Insurer will be the lowest interest rate (taking into account all relevant costs) which would enable the Remarketing Agent to sell all the Bonds on the date of such adjustment at a price equal to 100% of the principal amount thereof (the "Lowest Interest Rate Period"). If at such time the Company shall be in default under the Agreement but the Bond Insurer shall not have failed to comply with its payment obligations under the Bond Insurance Policy, the Bond Insurer may, in its discretion, direct the Company to provide notice of the

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adjustment of the Rate Period on the Bonds to the Lowest Interest Rate Period in accordance with the provisions of Section 2.03 of the Indenture.

SECTION 5.8. INFORMATION REPORTING, ETC. The Issuer covenants and agrees that, upon the direction of the Company or Bond Counsel, it will mail or cause to be mailed to the Secretary of the Treasury (or his designee as prescribed by regulation, currently the Internal Revenue Service Center, Ogden, Utah) a statement setting forth the information required by Section 149(e) of the Code, which statement shall be in the form of the Information Return for Tax-Exempt Private Activity Bond Issues (Form 8038) of the Internal Revenue Service (or any successor form) and which shall be completed by the Company and Bond Counsel based in part upon information supplied by the Company and Bond Counsel.

SECTION 5.9. LIMITED LIABILITY OF ISSUER. Any obligation or liability of the Issuer created by or arising out of this Agreement or otherwise incurred in connection with the issuance of the Bonds (including without limitation any liability created by or arising out of the representations, warranties or covenants set forth herein or otherwise) shall not impose a debt or pecuniary liability upon the Issuer or the State or any political subdivision thereof, or a charge upon the general credit or taxing powers of any of the foregoing, but shall be payable solely out of the Revenues or other amounts payable by the Company to the Issuer hereunder or otherwise (including without limitation any amounts derived from indemnifications given by the Company).

Neither the issuance of the Bonds nor the delivery of this Agreement shall, directly or indirectly or contingently, obligate the Issuer or the State or any political subdivision thereof to levy any form of taxation therefor or to make any appropriation for their payment. Nothing in the Bonds or in the Indenture or this Agreement or the proceedings of the Issuer authorizing the Bonds or in the Act or in any other related document shall be construed to authorize the Issuer to create a debt of the Issuer or the State or any political subdivision thereof within the meaning of any constitutional or statutory provision of the State. The principal of, and premium, if any, and interest on, the Bonds shall be payable solely from the funds pledged for their payment in accordance with the Indenture and available therefor under this Agreement. Neither the State nor any political subdivision thereof shall in any event be liable for the payment of the principal of, premium, if any, or interest on, the Bonds or for the performance of any pledge, obligation or agreement of any kind whatsoever which may be undertaken by the Issuer. No breach of any such pledge, obligation or agreement may impose any pecuniary liability upon the Issuer or the State or any political subdivision thereof, or any charge upon the general credit or against the taxing power of the Issuer or the State or any political subdivision thereof.

SECTION 5.10. INSPECTION OF PROJECT. The Company agrees that the Issuer and the Trustee and their duly authorized representatives shall have the right at all reasonable times to enter upon and examine and inspect the Project property and shall also be permitted, at all reasonable times, to examine the books and records of the Company insofar as they relate to the Project.

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ARTICLE VI

EVENTS OF DEFAULT AND REMEDIES

SECTION 6.1. EVENTS OF DEFAULT DEFINED. The following shall be "events of default" under this Agreement and the terms "event of default" or "default" shall mean, whenever they are used in this Agreement, any one or more of the following events:

(a) Failure by the Company to pay when due any amounts required to be paid under Section 4.2(a) hereof, which failure results in an event of default under subparagraph (a) or (b) of Section 9.01 of the Indenture; or

(b) Failure by the Company to pay or cause to be paid any payment required to be paid under Section 4.2(b) hereof, which failure results in an event of default under subparagraph (c) of Section 9.01 of the Indenture; or

(c) Failure by the Company to observe and perform any covenant, condition or agreement on its part to be observed or performed in this Agreement, other than as referred to in (a) and (b) above, for a period of 90 days after written notice, specifying such failure and requesting that it be remedied and stating that such notice is a "Notice of Default" hereunder, given to the Company by the Trustee or to the Company and the Trustee by the Issuer, unless the Issuer and the Trustee shall agree in writing to an extension of such time prior to its expiration; provided, however, if the failure stated in the notice cannot be corrected within the applicable period, the Issuer and the Trustee will not unreasonably withhold their consent to an extension of such time if corrective action is instituted within the applicable period and diligently pursued until the failure is corrected and such corrective action or diligent pursuit is evidenced to the Trustee by a certificate of an Authorized Company Representative; or

(d) A proceeding or case shall be commenced, without the application or consent of the Company, in any court of competent jurisdiction seeking
(i) liquidation, reorganization, dissolution, winding-up or composition or adjustment of debts, (ii) the appointment of a trustee, receiver, custodian, liquidator or the like of the Company or of all or any substantial part of its assets, or (iii) similar relief under any law relating to bankruptcy, insolvency, reorganization, winding-up or composition or adjustment of debts, and such proceeding or cause shall continue undismissed, or an order, judgment, or decree approving or ordering any of the foregoing shall be entered and shall continue in effect for a period of 90 days; or an order for relief against the Company shall be entered against the Company in an involuntary case under the Bankruptcy Code (as now or hereafter in effect) or other applicable law; or

(e) The Company shall admit in writing its inability to pay its debts generally as they become due or shall file a petition in voluntary bankruptcy or shall make any general assignment for the benefit of its creditors, or shall consent to the appointment of a receiver or trustee of all or substantially all of its property, or shall commence a voluntary case under the Bankruptcy Code (as now or hereafter in effect), or shall file in any court

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of competent jurisdiction a petition seeking to take advantage of any other law relating to bankruptcy, insolvency, reorganization, winding-up or composition or adjustment of debts, or shall fail to controvert in a timely or appropriate manner, or acquiesce in writing to, any petition filed against it in an involuntary case under such Bankruptcy Code or other applicable law; or

(f) Dissolution or liquidation of the Company; provided that the term "dissolution or liquidation of the Company" shall not be construed to include the cessation of the corporate existence of the Company resulting either from a merger or consolidation of the Company into or with another corporation or a dissolution or liquidation of the Company following a transfer of all or substantially all of its assets as an entirety, under the conditions permitting such actions contained in Section 5.1 hereof; or

(g) The occurrence of an "event of default" under the Indenture.

The foregoing provisions of Section 6.1(c) are subject to the following limitations: If by reason of Force Majeure the Company is unable in whole or in part to carry out its agreements on its part herein contained, other than the obligations on the part of the Company contained in Article IV and Sections 5.3 and 6.4 hereof, the Company shall not be deemed in default during the continuance of such inability. The Company agrees, however, to remedy with all reasonable dispatch the cause or causes preventing the Company from carrying out its agreements; provided that the settlement of strikes, lockouts and other industrial disturbances shall be entirely within the discretion of the Company and the Company shall not be required to make settlement of strikes, lockouts and other industrial disturbances by acceding to the demands of the opposing party or parties when such course is in the sole judgment of the Company unfavorable to the Company.

SECTION 6.2. REMEDIES ON DEFAULT. Whenever any event of default referred to in Section 6.1 hereof shall have happened and be continuing, the Trustee, as assignee of the Issuer:

(a) shall, by notice in writing to the Company, declare the unpaid indebtedness under Section 4.2(a) hereof to be due and payable immediately, if concurrently with or prior to such notice the unpaid principal amount of the Bonds shall have been declared to be due and payable, and upon any such declaration the same (being an amount sufficient, together with other moneys available therefor in the Bond Fund, to pay the unpaid principal of, premium, if any, and interest accrued on, the Bonds) shall become and shall be immediately due and payable as liquidated damages; and

(b) may take whatever action at law or in equity as may appear necessary or desirable to collect the payments and other amounts then due and thereafter to become due hereunder or to enforce performance and observance of any obligation, agreement or covenant of the Company under this Agreement.

Any amounts collected pursuant to action taken under this Section 6.2 shall be paid into the Bond Fund (unless otherwise provided in this Agreement) and applied in accordance with the

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provisions of the Indenture. No action taken pursuant to this Section 6.2 shall relieve the Company from the Company's obligations pursuant to Section 4.2 hereof.

No recourse shall be had for any claim based on this Agreement against any officer, director or stockholder, past, present or future, of the Company as such, either directly or through the Company, under any constitutional provision, statute or rule of law, or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise.

Nothing herein contained shall be construed to prevent the Issuer from enforcing directly any of its rights under Sections 4.2(e), 4.2(g), 5.3 and 6.4 hereof.

The Company shall promptly notify the Issuer of any action taken by the Company under the grant of authority from the Issuer under the last paragraph of
Section 9.01 of the Indenture.

SECTION 6.3. NO REMEDY EXCLUSIVE. No remedy herein conferred upon or reserved to the Issuer is intended to be exclusive of any other available remedy or remedies, but each and every such remedy shall be cumulative and shall be in addition to every other remedy given under this Agreement or now or hereafter existing at law or in equity or by statute. No delay or omission to exercise any right or power accruing upon any default shall impair any such right or power or shall be construed to be a waiver thereof, but any such right and power may be exercised from time to time and as often as may be deemed expedient. In order to entitle the Issuer or the Trustee to exercise any remedy reserved to it in this Article, it shall not be necessary to give any notice, other than such notice as may be herein expressly required. Subject to the provisions of the Indenture and hereof, such rights and remedies as are given the Issuer hereunder shall also extend to the Trustee. The Owners of the Bonds, subject to the provisions of the Indenture, shall be entitled to the benefit of all covenants and agreements herein contained.

SECTION 6.4. AGREEMENT TO PAY FEES AND EXPENSES OF COUNSEL. In the event the Company should default under any of the provisions of this Agreement and the Issuer or the Trustee should employ Counsel or incur other expenses for the collection of the indebtedness hereunder or the enforcement of performance or observance of any obligation or agreement on the part of the Company herein contained, the Company agrees that it will on written demand therefor pay to the Trustee or the Issuer (or to the Counsel for either of such parties if directed by such party), the reasonable fees and expenses of such Counsel and such other expenses so incurred by or on behalf of the Issuer or the Trustee.

SECTION 6.5. NO ADDITIONAL WAIVER IMPLIED BY ONE WAIVER; CONSENTS TO WAIVERS. In the event any agreement contained in this Agreement should be breached by either party and thereafter waived by the other party, such waiver shall be limited to the particular breach so waived and shall not be deemed to waive any other breach hereunder. No waiver shall be effective unless in writing and signed by the party making the waiver. The Issuer shall have no power to waive any default hereunder by the Company without the consent of the Trustee to such waiver. The Trustee shall have the power to waive any default by the Company hereunder, except a default under Section 3.4, 4.2(e), 4.2(g), 5.3 or 6.4 hereof, in so far as it pertains to the Issuer, without the prior written concurrence of the Issuer. Notwithstanding the foregoing, if,

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after the acceleration of the maturity of the outstanding Bonds by the Trustee pursuant to Section 9.02 of the Indenture, (i) all arrears of principal of and interest on the outstanding Bonds and interest on overdue principal and (to the extent permitted by law) on overdue installments of interest at the rate of interest borne by the Bonds on the date on which such principal or interest became due and payable and the premium, if any, on all Bonds then Outstanding which have become due and payable otherwise than by acceleration, and all other sums payable under the Indenture, except the principal of and the interest on such Bonds which by such acceleration shall have become due and payable, shall have been paid, (ii) all other things shall have been performed in respect of which there was a default, (iii) there shall have been paid the reasonable fees and expenses of the Trustee and of the Owners of such Bonds, including reasonable attorneys' fees paid or incurred and (iv) such event of default under the Indenture shall be waived in accordance with Section 9.09 of the Indenture with the consequence that such acceleration under Section 9.02 of the Indenture is rescinded, then the Company's default hereunder shall be deemed to have been waived and its consequences rescinded and no further action or consent by the Trustee or the Issuer shall be required; provided that there has been furnished an opinion of Bond Counsel to the effect that such waiver will not adversely affect the exemption from federal income taxes of interest on the Bonds.

ARTICLE VII

OPTIONS AND OBLIGATIONS OF COMPANY;
PREPAYMENTS; REDEMPTION OF BONDS

SECTION 7.1. OPTION TO PREPAY. The Company shall have, and is hereby granted, the option to prepay the payments due hereunder in whole or in part at any time or from time to time (a) to provide for the redemption of Bonds pursuant to the provisions of Section 3.01(A) of the Indenture or (b) to provide for the defeasance of the Bonds pursuant to Article VIII of the Indenture. In the event the Company elects to provide for the redemption of Bonds as permitted by this Section, the Company shall notify and instruct the Trustee in accordance with Section 7.3 hereof to redeem all or any portion of the Bonds in advance of maturity. If the Company so elects, any redemption of Bonds pursuant to Section 3.01(A) of the Indenture may be made conditional.

SECTION 7.2. OBLIGATION TO PREPAY. The Company covenants and agrees that if all or any part of the Bonds are unconditionally called for redemption in accordance with the Indenture or become subject to mandatory redemption (except as otherwise provided in Section 3.02 of the Indenture), it will prepay the indebtedness hereunder in whole or in part in an amount sufficient to redeem such Bonds on the date fixed for the redemption of such Bonds.

SECTION 7.3. NOTICE OF PREPAYMENT. Upon the exercise of the option granted to the Company in Section 7.1 hereof, or upon the Company having knowledge of the occurrence of any event requiring mandatory redemption of the Bonds in accordance with Section 3.01(B) of the Indenture, the Company shall give written notice to the Issuer, the Remarketing Agent, the Auction Agent and the Trustee. The notice shall provide for the date of the application of the prepayment made by the Company hereunder to the retirement of the Bonds in whole or in part pursuant to call for redemption and shall be given by the Company not less than five Business

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Days prior to the date notice of such redemption must be given by the Trustee to the Bondholders as provided in Section 3.02 of the Indenture or such later date as is acceptable to the Trustee and the Issuer.

ARTICLE VIII

MISCELLANEOUS

SECTION 8.1. NOTICES. Except as otherwise provided herein, all notices, certificates or other communications hereunder shall be sufficiently given if in writing and shall be deemed given when mailed by first class mail, postage prepaid, or by qualified overnight courier service, courier charges prepaid, or by facsimile (receipt of which is orally confirmed) addressed as follows: if to the Issuer, at 500 South Grand Central Parkway, 6th Floor (89106), P.O. Box 551601, Las Vegas, Nevada 89155-1601, or to telecopy number (702) 455-3558, Attention: County Manager; if to the Company, at P.O. Box 230, 6226 West Sahara Avenue, Las Vegas, Nevada 89146, or to telecopy number (702) 227-2250, Attention: Treasurer; if to the Trustee, at U.S. Bank Center, 101 North First Avenue, Suite 1600, Phoenix, Arizona 85003, or to telecopy number (602) 257-5433, Attention: Corporate Trust Services; if to the Remarketing Agent, at the address set forth in the Remarketing Agreement, if any; and if to the Auction Agent, at the address set forth in the Auction Agreement, if any. In case by reason of the suspension of regular mail service, it shall be impracticable to give notice by first class mail of any event to the Issuer, to the Company, to the Remarketing Agent, to the Auction Agent when such notice is required to be given pursuant to any provisions of this Agreement, then any manner of giving such notice as shall be satisfactory to the Trustee shall be deemed to be sufficient giving of such notice. The Issuer, the Company, the Trustee, the Remarketing Agent and the Auction Agent may, by notice pursuant to this Section 8.1, designate any different addresses to which subsequent notices, certificates or other communications shall be sent.

SECTION 8.2. ASSIGNMENTS. This Agreement may not be assigned by either party without consent of the other and the Trustee, except that the Issuer shall assign to the Trustee its rights under this Agreement (except under Sections 4.2(e), 4.2(g), 5.3, and 6.4 hereof) as provided by Section 4.4 hereof, and the Company may assign its rights under this Agreement to any transferee or any surviving or resulting corporation as provided by Section 5.1 hereof.

SECTION 8.3. SEVERABILITY. If any provision of this Agreement shall be held or deemed to be or shall, in fact, be illegal, inoperative or unenforceable, the same shall not affect any other provision or provisions herein contained or render the same invalid, inoperative, or unenforceable to any extent whatever.

SECTION 8.4. EXECUTION OF COUNTERPARTS. This Agreement may be simultaneously executed in several counterparts, each of which shall be an original and all of which shall constitute but one and the same instrument.

SECTION 8.5. AMOUNTS REMAINING IN BOND FUND. It is agreed by the parties hereto that after payment in full of (i) the Bonds (or provision for payment thereof having been made in accordance with the provisions of the Indenture),
(ii) the fees, charges and expenses of the

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Trustee in accordance with the Indenture, (iii) the Administrative Expenses,
(iv) the fees and expenses of the Remarketing Agent, the Auction Agent and the Issuer and (v) all other amounts required to be paid under this Agreement and the Indenture, any amounts remaining in the Bond Fund shall belong to and be paid to the Company by the Trustee.

SECTION 8.6. AMENDMENTS, CHANGES AND MODIFICATIONS. This Agreement may be amended, changed, modified, altered or terminated only by written instrument executed by the Issuer and the Company, and only if the written consent of the Trustee thereto is obtained, and only in accordance with the provisions of Article XII of the Indenture.

SECTION 8.7. GOVERNING LAW. This Agreement shall be governed exclusively by and construed in accordance with the applicable laws of the State.

SECTION 8.8. AUTHORIZED ISSUER AND COMPANY REPRESENTATIVES. Whenever under the provisions of this Agreement the approval of the Issuer or the Company is required to take some action at the request of the other, such approval of such request shall be given for the Issuer by the Authorized Issuer Representative and for the Company by the Authorized Company Representative, and the other party hereto and the Trustee shall be authorized to act on any such approval or request and neither party hereto shall have any complaint against the other or against the Trustee as a result of any such action taken.

SECTION 8.9. TERM OF THE AGREEMENT. This Agreement shall be in full force and effect from its date to and including such date as all of the Bonds issued under the Indenture shall have been fully paid or retired (or provision for such payment shall have been made as provided in the Indenture), provided that all representations and certifications by the Company as to all matters affecting the tax-exempt status of the Bonds and the covenants of the Company in Sections 4.2(c), 4.2(d), 4.2(e), 4.2(f) and 4.2(g) hereof shall survive the termination of this Agreement.

SECTION 8.10. CANCELLATION AT EXPIRATION OF TERM. At the acceleration, termination or expiration of the term of this Agreement and following full payment of the Bonds or provision for payment thereof and of all other fees and charges having been made in accordance with the provisions of this Agreement and the Indenture, the Issuer shall deliver to the Company any documents and take or cause the Trustee to take such actions as may be necessary to effectuate the cancellation and evidence the termination of this Agreement.

SECTION 8.11. BOND INSURANCE. The payment of the principal of and interest on the Bonds when due is to be insured under, and to the extent provided in, the Bond Insurance Policy, including the endorsements thereto, to be issued by the Bond Insurer, and the Issuer and the Company agree to be bound by the provisions contained in Appendix C to the Indenture and the Company agrees to be bound by the provisions contained in the Insurance Agreement. In the event of any conflict between the provisions of Appendix C to the Indenture and the provisions of this Agreement, the provisions of Appendix C shall govern and control.

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All references in this Agreement to the Bond Insurer shall only apply so long as a Bond Insurance Policy issued by the Bond Insurer is in effect for any of the Bonds (and the Bond Insurer has not failed to comply with its payment obligations under the Bond Insurance Policy).

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IN WITNESS WHEREOF, the Issuer and the Company have caused this Agreement to be executed in their respective corporate names and their respective corporate seals to be hereunto affixed and attested by their duly authorized officers, all as of the date first above written.

CLARK COUNTY, NEVADA

By
Chairman Board of County Commissioners

(SEAL)

Attest:


County Clerk

NEVADA POWER COMPANY

By
Treasurer

(SEAL)

Attest:


Secretary

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Exhibit 10.2


FINANCING AGREEMENT

Dated as of August 1, 2006

By and Between

COCONINO COUNTY, ARIZONA POLLUTION CONTROL CORPORATION

and

NEVADA POWER COMPANY

RELATING TO
POLLUTION CONTROL REFUNDING REVENUE BONDS
(NEVADA POWER COMPANY PROJECT)

SERIES 2006A


The amounts payable to the Issuer (except for amounts payable to, and certain rights and privileges of, the Issuer under Sections 4.2(e), 4.2(g), 5.3 and 6.4 hereof and any rights of the Issuer to receive any notices, certificates, requests, requisitions or communications hereunder) and certain other rights of the Issuer under this Financing Agreement have been pledged and assigned under the Indenture of Trust dated as of August 1, 2006, between the Issuer and U.S. Bank National Association, as Trustee.


FINANCING AGREEMENT


TABLE OF CONTENTS

(This Table of Contents is not a part of this Agreement and is only for convenience of reference).

SECTION                                   HEADING                           PAGE
-------                                   -------                           ----
ARTICLE I          DEFINITIONS...........................................      1

ARTICLE II         REPRESENTATIONS.......................................      5
   Section 2.1.    Representations and Covenants by the Issuer...........      5
   Section 2.2.    Representations by the Company........................      6

ARTICLE III        ISSUANCE OF THE BONDS.................................      6
   Section 3.1.    Agreement to Issue Bonds; Application of Bond
                      Proceeds...........................................      6
   Section 3.2.    Deposit of Additional Funds by Company; Redemption of
                      Prior Bonds........................................      7
   Section 3.3.    Investment of Moneys in the Bond Fund and the Prior
                      Bonds Redemption Fund..............................      7
   Section 3.4.    Tax Exempt Status of Bonds............................      8

ARTICLE IV         LOAN AND PROVISIONS FOR REPAYMENT.....................      8
    Section 4.1.   Loan of Bond Proceeds.................................      8
    Section 4.2.   Loan Repayments and Other Amounts Payable.............      9
    Section 4.3.   No Defense or Set-Off.................................     10
    Section 4.4.   Payments Pledged and Assigned.........................     11
    Section 4.5.   Payment of the Bonds and Other Amounts................     11

ARTICLE V          SPECIAL COVENANTS AND AGREEMENTS......................     12
   Section 5.1.    Company to Maintain its Corporate Existence;
                      Conditions Under Which Exceptions Permitted........     12
   Section 5.2.    Annual Statement......................................     12
   Section 5.3.    Maintenance and Repair; Insurance; Taxes;
                      Disposition........................................     13
   Section 5.4.    Recordation and Other Instruments.....................     13
   Section 5.5.    No Warranty by the Issuer.............................     13
   Section 5.6.    Agreement as to Ownership of the Project..............     13
   Section 5.7.    Company to Furnish Notice of Rate Period Adjustments;
                      Liquidity Facility Requirements; Auction Rate
                      Period Provisions..................................     13
   Section 5.8.    Information Reporting, Etc............................     14

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   Section 5.9.    Limited Liability of Issuer...........................     14
   Section 5.10.   Inspection of Project.................................     15

ARTICLE VI         EVENTS OF DEFAULT AND REMEDIES........................     15
   Section 6.1.    Events of Default Defined.............................     15
   Section 6.2.    Remedies on Default...................................     17
   Section 6.3.    No Remedy Exclusive...................................     17
   Section 6.4.    Agreement to Pay Fees and Expenses of Counsel.........     18
   Section 6.5.    No Additional Waiver Implied by One Waiver; Consents
                      to Waivers.........................................     18

ARTICLE VII        OPTIONS AND OBLIGATIONS OF COMPANY; PREPAYMENTS;
                      REDEMPTION OF BONDS................................     19
   Section 7.1.    Option to Prepay......................................     19
   Section 7.2.    Obligation to Prepay..................................     19
   Section 7.3.    Notice of Prepayment..................................     19

ARTICLE VIII       MISCELLANEOUS.........................................     19
   Section 8.1.    Notices...............................................     19
   Section 8.2.    Assignments...........................................     20
   Section 8.3.    Severability..........................................     20
   Section 8.4.    Execution of Counterparts.............................     20
   Section 8.5.    Amounts Remaining in Bond Fund........................     20
   Section 8.6.    Amendments, Changes and Modifications.................     20
   Section 8.7.    Governing Law.........................................     20
   Section 8.8.    Authorized Issuer and Company Representatives.........     20
   Section 8.9.    Term of the Agreement.................................     21
   Section 8.10.   Cancellation at Expiration of Term....................     21
   Section 8.11.   Bond Insurance........................................     21
   Section 8.12.   Notice Regarding Cancellation of Contracts............     21

Signature................................................................     23

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THIS FINANCING AGREEMENT made and entered into as of August 1, 2006, by and between the COCONINO COUNTY, ARIZONA POLLUTION CONTROL CORPORATION, an Arizona nonprofit corporation and a political subdivision of the State of Arizona, party of the first part (hereinafter referred to as the "Issuer"), and NEVADA POWER COMPANY, a corporation duly organized and existing under the laws of the State of Nevada, party of the second part (hereinafter referred to as the "Company"),

WITNESSETH:

In consideration of the respective representations and agreements hereinafter contained, the parties hereto agree as follows (provided, that in the performance of the agreements of the Issuer herein contained, any obligation it may thereby incur shall not constitute or give rise to a pecuniary liability or a charge upon its general credit or against its taxing powers but shall be payable solely out of the Revenues (as hereinafter defined) derived from this Financing Agreement and the Bonds, as hereinafter defined):

ARTICLE I

DEFINITIONS

The following terms shall have the meanings specified in this Article unless the context clearly requires otherwise. The singular shall include the plural and the masculine shall include the feminine.

"Act" means Title 35, Chapter 6, Arizona Revised Statutes, as amended.

"Administrative Expenses" means the reasonable and necessary expenses
(including the reasonable value of employee services and fees of Counsel)
incurred by the Issuer in connection with the Bonds, this Agreement, the Indenture and any transaction or event contemplated by this Agreement or the Indenture.

"Agreement" means this Financing Agreement by and between the Issuer and the Company, as from time to time amended and supplemented.

"Auction Agent" means the auction agent appointed in accordance with the provisions of the Indenture.

"Authorized Company Representative" means any person who, at the time, shall have been designated to act on behalf of the Company by a written certificate furnished to the Issuer, the Remarketing Agent and the Trustee containing the specimen signature of such person and signed on behalf of the Company by any officer of the Company. Such certificate may designate an alternate or alternates.


"Authorized Issuer Representative" means any person at the time designated to act on behalf of the Issuer by a written certificate furnished to the Company and the Trustee containing the specimen signature of such person and signed on behalf of the Issuer by its President, Vice President or Secretary. Such certificate may designate an alternate or alternates.

"Bankruptcy Code" means the United States Bankruptcy Reform Act of 1978, as amended from time to time, or any substitute or replacement legislation.

"Bond" or "Bonds" means, the Issuer's bonds identified in Section 2.02 of the Indenture.

"Bond Counsel" means the Counsel who renders the opinion as to the tax-exempt status of interest on the Bonds or other nationally recognized municipal bond counsel mutually acceptable to the Issuer and the Company.

"Bond Fund" means the fund created by Section 6.02 of the Indenture.

"Code" means the United States Internal Revenue Code of 1986, as amended, and regulations promulgated or proposed thereunder and, to the extent applicable to the Bonds or the Prior Bonds, the 1954 Code.

"Company" means Nevada Power Company, a Nevada corporation, and its successors and assigns and any surviving, resulting or transferee corporation as permitted in Section 5.1 hereof.

"Counsel" means an attorney at law or a firm of attorneys (who may be an employee of or counsel to the Issuer or the Company or the Trustee) duly admitted to the practice of law before the highest court of any state of the United States of America or of the District of Columbia.

"Delivery Agreement" means the Delivery Agreement of even date herewith, between the Company and the Trustee, as amended, supplemented or restated from time to time, pursuant to which the Company will issue to the Trustee the G&R Notes at the time of the initial authentication and delivery of the Bonds.

"Extraordinary Services" and "Extraordinary Expenses" means all services rendered and all expenses (including fees and expenses of Counsel) incurred under the Indenture and the Tax Agreement other than Ordinary Services and Ordinary Expenses.

"Force Majeure" means acts of God, strikes, lockouts or other industrial disturbances; acts of public enemies; orders or restraints of any kind of the governments of the United States or of the State, or any of their departments, agencies or officials, or any civil or military authority; insurrections; riots; landslides; lightning; earthquakes; fires; tornadoes; volcanoes; storms; droughts; floods; explosions, breakage, or malfunction or accident to machinery, transmission lines, pipes or canals, even if resulting from negligence; civil disturbances; or any other cause not reasonably within the control of the Company.

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"G&R Indenture" means the General and Refunding Mortgage Indenture dated as of May 1, 2001 between the Company and the G&R Trustee, as amended and supplemented.

"G&R Notes" means the Company's $40,000,000 General and Refunding Mortgage Note, Series P, No. P-2, due September 1, 2032.

"G&R Trustee" means The Bank of New York, as trustee under the G&R Indenture or any successor trustee.

"Governing Body" means the Board of Directors of the Issuer.

"Hereof," "herein," "hereunder" and other words of similar import refer to this Agreement as a whole.

"Indenture" means the Indenture of Trust relating to this Agreement between the Issuer and U.S. Bank National Association, as Trustee, of even date herewith, pursuant to which the Bonds are authorized to be issued, including any indentures supplemental thereto or amendatory thereof.

"Issuer" means the Coconino County, Arizona Pollution Control Corporation, and any successor body to the duties or functions of the Issuer.

"1954 Code" means the Internal Revenue Code of 1954, as amended, and the applicable regulations thereunder.

"Ordinary Services" and "Ordinary Expenses" means those services normally rendered and those expenses including fees and expenses of Counsel, normally incurred by a trustee or paying agent under instruments similar to the Indenture and the Tax Agreement.

"Owner" or "owner of Bonds" means the Person or Persons in whose name or names a Bond shall be registered on books of the Issuer kept by the Registrar for that purpose in accordance with the terms of the Indenture.

"Person" means natural persons, firms, partnerships, associations, corporations, trusts and public bodies.

"Prior Agreements" means (i) with respect to the Series 1996 Bonds, the Financing Agreement, dated as of October 1, 1996, between the Issuer and the Company and (ii) with respect to the Series 1997 Bonds, the Financing Agreement dated as of November 1, 1997, between the Issuer and the Company.

"Prior Bonds" means the Series 1996 Bonds and the Series 1997 Bonds.

"Prior Bond Funds" means the Series 1996 Bond Fund and the Series 1997 Bond Fund.

"Prior Indentures" means the Series 1996 Indenture and the Series 1997 Indenture.

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"Prior Trustees" means the Series 1996 Trustee and the Series 1997 Trustee.

"Project" means the Project as defined in the Prior Agreements.

"Project Certificate" means the Company's Project and Refunding Certificate, delivered concurrently with the issuance of the Bonds, with respect to certain facts which are within the knowledge of the Company and certain reasonable assumptions of the Company, to enable Chapman and Cutler LLP, as Bond Counsel, to determine that interest on the Bonds is not includable in the gross income of the Owners of the Bonds for federal income tax purposes.

"Rebate Fund" means the Rebate Fund, if any, created and established pursuant to the Tax Agreement.

"Regulated Utility Company" means a corporation (or a limited liability company) engaged in the distribution of electricity and which is regulated by the public utility commission where its primary electricity distribution business is located.

"Remarketing Agent" means the remarketing agent, if any, appointed in accordance with Section 4.08 of the Indenture and any permitted successor thereto.

"Reorganization" means any reorganization, consolidation or merger of the Company or its affiliates, or any transfer or lease of a substantial portion of the assets of the Company or its affiliates, as a result of which the obligor under the Agreement or the obligor on the G&R Notes ceases to be a Regulated Utility Company.

"Series 1996 Bond Fund" means the fund established pursuant to Section 5.02 of the Series 1996 Indenture.

"Series 1996 Bonds" means the Issuer's Pollution Control Revenue Bonds (Nevada Power Company Project) Series 1996, currently outstanding in the aggregate principal amount of $20,000,000.

"Series 1996 Indenture" means the Indenture of Trust dated as of October 1, 1996 between the Issuer and The Bank of New York (successor to United States Trust Company of New York), as trustee, pursuant to which the Series 1996 Bonds were issued.

"Series 1996 Trustee" means The Bank of New York, as current trustee under the Series 1996 Indenture.

"Series 1997 Bond Fund" means the fund established pursuant to Section 6.02 of the Series 1997 Indenture.

"Series 1997 Bonds" means the Issuer's Pollution Control Revenue Bonds (Nevada Power Company Project) Series 1997B, currently outstanding in the aggregate principal amount of $20,000,000.

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"Series 1997 Indenture" means the Indenture of Trust dated as of November 1, 1997 between the Issuer and The Bank of New York (successor to United States Trust Company of New York), as trustee, pursuant to which the Series 1997 Bonds were issued.

"Series 1997 Trustee" means The Bank of New York, as current trustee under the Series 1997 Indenture.

"State" means the State of Arizona.

"Tax Agreement" means the Tax Exemption Certificate and Agreement with respect to the Bonds, dated the date of delivery of the Bonds, among the Company, the Issuer and the Trustee, as from time to time amended and supplemented.

"Trust Estate" means the property conveyed to the Trustee pursuant to the Granting Clauses of the Indenture.

"Trustee" means U.S. Bank National Association, as Trustee under the Indenture, and any successor Trustee appointed pursuant to Section 10.06 or 10.09 of the Indenture at the time serving as Trustee thereunder, and any separate or co-trustee serving as such thereunder.

All other terms used herein which are defined in the Indenture shall have the same meanings assigned them in the Indenture unless the context otherwise requires.

ARTICLE II

REPRESENTATIONS

SECTION 2.1. REPRESENTATIONS AND COVENANTS BY THE ISSUER. The Issuer makes the following representations and covenants as the basis for the undertakings on its part herein contained:

(a) The Issuer is a duly organized and existing political subdivision of the State of Arizona. Under the provisions of the Act, the Issuer is authorized to enter into the transactions contemplated by this Agreement, the Indenture and the Tax Agreement and to carry out its obligations hereunder and thereunder. The Issuer has duly authorized the execution and delivery of this Agreement, the Indenture and the Tax Agreement.

(b) The Bonds are to be issued under and secured by the Indenture, pursuant to which certain of the Issuer's interests in this Agreement and the Revenues derived by the Issuer pursuant to this Agreement will be pledged and assigned as security for payment of the principal of, premium, if any, and interest on, the Bonds.

(c) The Governing Body of the Issuer has found that the issuance of the Bonds will further the public purposes of the Act.

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(d) The Issuer has not assigned and will not assign any of its interests in this Agreement other than pursuant to the Indenture.

(e) No member of the Governing Body of the Issuer, nor any other officer of the Issuer, has any interest, financial, employment or other, in the Company or in the transactions contemplated hereby.

SECTION 2.2. REPRESENTATIONS BY THE COMPANY. The Company makes the following representations as the basis for the undertakings on its part herein contained:

(a) The Company is a corporation duly incorporated under the laws of the State of Nevada, is in good standing in the State of Nevada and the State, is qualified to do business as a foreign corporation in all other states and jurisdictions wherein the nature of the business transacted by the Company or the nature of the property owned or leased by it makes such licensing or qualification necessary, and has the power to enter into and by proper corporate action has been duly authorized to execute and deliver this Agreement and the Tax Agreement.

(b) Neither the execution and delivery of this Agreement or the Tax Agreement, the consummation of the transactions contemplated hereby and thereby, nor the fulfillment of or compliance with the terms and conditions of this Agreement and the Tax Agreement, conflicts with or results in a breach of any of the terms, conditions or provisions of any corporate restriction or any agreement or instrument to which the Company is now a party or by which it is bound, or constitutes a default under any of the foregoing, or results in the creation or imposition of any lien, charge or encumbrance whatsoever upon any of the property or assets of the Company under the terms of any instrument or agreement other than the Indenture.

(c) The statements, information and descriptions contained in the Project Certificate and the Tax Agreement, as of the date hereof and at the time of the delivery of the Bonds to the Underwriter, are and will be true, correct and complete, do not and will not contain any untrue statement or misleading statement of a material fact, and do not and will not omit to state a material fact required to be stated therein or necessary to make the statements, information and descriptions contained therein, in the light of the circumstances under which they were made, not misleading.

ARTICLE III

ISSUANCE OF THE BONDS

SECTION 3.1. AGREEMENT TO ISSUE BONDS; APPLICATION OF BOND PROCEEDS. In order to provide funds to lend to the Company to refund the Prior Bonds as provided in Section 4.1 hereof, the Issuer agrees that it will issue under the Indenture, sell and cause to be delivered to the Underwriter, its Bonds in the aggregate principal amount of $40,000,000, bearing interest and maturing as set forth in the Indenture. The Issuer will thereupon deposit the proceeds

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received from the sale of the Bonds as follows: (1) in the Bond Fund, a sum equal to the accrued interest, if any, paid by the Underwriter; (2) $20,000,000 in the Series 1996 Bonds Account of the Prior Bonds Redemption Fund to be remitted by the Trustee to the Series 1996 Trustee for deposit in the Series 1996 Bond Fund to be used to pay to the owners thereof the principal of the Series 1996 Bonds upon redemption thereof; and (3) $20,000,000 in the Series 1997 Bonds Account of the Prior Bonds Redemption Fund to be remitted by the Trustee to the Series 1997 Trustee for deposit in the Series 1997 Bond Fund to be used to pay to the owners thereof the principal of the Series 1997 Bonds upon redemption thereof.

SECTION 3.2. DEPOSIT OF ADDITIONAL FUNDS BY COMPANY; REDEMPTION OF PRIOR BONDS. The Company covenants that such additional amounts as may be required to redeem the Prior Bonds in accordance with Section 3.1 hereof will be timely deposited with the Prior Trustees pursuant to the Prior Indentures for such purpose. Income derived from the investment of the proceeds of the Bonds deposited in the Accounts of the Prior Bonds Redemption Fund will be used, to the extent available, to satisfy the obligations of the Company specified in this Section 3.2. The Company covenants that it will cause the Prior Bonds to be redeemed within 90 days after the issuance and delivery of the Bonds.

SECTION 3.3. INVESTMENT OF MONEYS IN THE BOND FUND AND THE PRIOR BONDS REDEMPTION FUND. Except as otherwise herein provided, any moneys held as a part of the Bond Fund and the Prior Bonds Redemption Fund shall be invested or reinvested by the Trustee at the specific written direction of an Authorized Company Representative as to specific investments, to the extent permitted by law, in:

(a) bonds or other obligations of the United States of America;

(b) bonds or other obligations, the payment of the principal of and interest on which is unconditionally guaranteed by the United States of America;

(c) obligations issued or guaranteed as to principal and interest by any agency or person controlled or supervised by and acting as an instrumentality of the United States of America pursuant to authority granted by the Congress of the United States of America;

(d) obligations issued or guaranteed by any state of the United States of America, or any political subdivision of any such state, or in funds consisting of such obligations to the extent described in Section 1.148-8(e)(3)(iii) of the 1992 Treasury Regulations;

(e) prime commercial paper;

(f) prime finance company paper;

(g) bankers' acceptances drawn on and accepted by commercial banks;

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(h) repurchase agreements fully secured by obligations issued or guaranteed as to principal and interest by the United States of America or by any person controlled or supervised by and acting as an instrumentality of the United States of America pursuant to authority granted by the Congress of the United States of America;

(i) certificates of deposit issued by commercial banks, including banks domiciled outside of the United States of America; and

(j) units of taxable government money market portfolios composed of obligations guaranteed as to principal and interest by the United States of America or repurchase agreements fully collateralized by such obligations.

The investments so purchased shall be held by the Trustee and shall be deemed at all times a part of the fund and the account for which they were made and the interest accruing thereon and any profit realized therefrom shall be credited to such fund and account, subject to the provisions of the Tax Agreement. The Company agrees that to the extent any moneys in the Bond Fund represent moneys held for the payment of particular Bonds, or to the extent that any moneys are held for the payment of the purchase price of Bonds pursuant to Article IV of the Indenture, such moneys shall not be invested.

SECTION 3.4. TAX EXEMPT STATUS OF BONDS. The Company covenants and agrees that it has not taken or permitted and will not take or permit any action which results in interest paid on the Bonds being included in gross income of the holders or beneficial owners of the Bonds for purposes of federal income taxation (other than a holder or beneficial owner who is a "substantial user" of the Project or a "related person" within the meaning of Section 103(b)(13) of the 1954 Code). The Company covenants that none of the proceeds of the Bonds or the payments to be made under this Agreement, or any other funds which may be deemed to be proceeds of the Bonds pursuant to Section 148(a) of the Code, will be invested or used in such a way, and that no actions will be taken or not taken, as to cause the Bonds to be treated as "arbitrage bonds" within the meaning of Section 148(a) of the Code. Without limiting the generality of the foregoing, the Company covenants and agrees that it will comply with the provisions of the Tax Agreement and the Project Certificate.

ARTICLE IV

LOAN AND PROVISIONS FOR REPAYMENT

SECTION 4.1. LOAN OF BOND PROCEEDS. (a) The Issuer agrees, upon the terms and conditions in this Agreement, to lend to the Company the proceeds (exclusive of accrued interest, if any) received by the Issuer from the sale of the Bonds in order to refund the Prior Bonds, and the Company agrees to apply the gross proceeds of such loan to the refunding of the Prior Bonds as set forth in Sections 3.1 and 3.2 hereof.

(b) The Issuer and the Company expressly reserve the right to enter into, to the extent permitted by law, an agreement or agreements other than this Agreement, with respect to the

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issuance by the Issuer, under an indenture or indentures other than the Indenture, of obligations to provide additional funds to refund all or any principal amount of the Bonds.

SECTION 4.2. LOAN REPAYMENTS AND OTHER AMOUNTS PAYABLE. (a) On each date provided in or pursuant to the Indenture for the payment (whether at maturity or upon redemption or acceleration) of principal of, and premium, if any, and interest on, the Bonds, until the principal of, and premium, if any, and interest on, the Bonds shall have been fully paid or provision for the payment thereof shall have been made in accordance with the Indenture, the Company shall pay to the Trustee in immediately available funds, for deposit in the Bond Fund, as a repayment installment of the loan of the proceeds of the Bonds pursuant to
Section 4.1(a) hereof, a sum equal to the amount payable on such date (whether at maturity or upon redemption or acceleration) as principal of, and premium, if any, and interest on, the Bonds as provided in the Indenture; provided, however, that the obligation of the Company to make any such repayment installment shall be reduced by the amount of any moneys then on deposit in the Bond Fund and available for such payment; and provided further, that the obligation of the Company to make any such payment shall be deemed to be satisfied and discharged to the extent provided for under a liquidity facility (if applicable) or under the G&R Notes.

(b) The Company shall pay to the Trustee amounts equal to the amounts to be paid by the Trustee for the purchase of Bonds pursuant to Article IV of the Indenture. Such amounts shall be paid by the Company to the Trustee in immediately available funds on the date such payments pursuant to
Section 4.05 of the Indenture are to be made; provided, however, that the obligation of the Company to make any such payment shall be deemed to be satisfied and discharged to the extent moneys are available from the source described in clause (i) of Section 4.05(a) of the Indenture and to the extent moneys are available under any liquidity facility (if applicable).

(c) The Company agrees to pay to the Trustee (i) the fees of the Trustee for the Ordinary Services rendered by it and an amount equal to the Ordinary Expenses incurred by it under the Indenture and the Tax Agreement, as and when the same become due, and (ii) the reasonable fees, charges and expenses of the Trustee for reasonable Extraordinary Services and Extraordinary Expenses, as and when the same become due, incurred under the Indenture and the Tax Agreement. The Company agrees that the Trustee, its officers, agents, servants and employees, shall not be liable for, and agrees that it will at all times indemnify and hold harmless the Trustee, its officers, agents, servants and employees against, and pay all expenses of the Trustee, its officers, agents, servants and employees, relating to any lawsuit, proceeding or claim and resulting from any action or omission taken or made by or on behalf of the Trustee, its officers, agents, servants and employees pursuant to this Agreement, the Indenture or the Tax Agreement, that may be occasioned by any cause (other than the negligence or willful misconduct of the Trustee, its officers, agents, servants and employees). In case any action shall be brought against the Trustee in respect of which indemnity may be sought against the Company, the Trustee shall promptly notify the Company in writing and the Company shall be entitled to assume control of the defense thereof, including the employment of Counsel reasonably satisfactory to the Trustee and the payment of all expenses. The Trustee shall have the right to employ separate Counsel in any such action and participate in the defense thereof, but the fees and expenses of such Counsel shall be paid by the Trustee unless (i) the employment

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of such Counsel has been authorized by the Company, (ii) the Trustee has determined (which determination may be based upon an opinion of counsel delivered to the Trustee and furnished to the Company) that there may be a conflict of interest of such Counsel retained by the Company between the Company and the Trustee in the conduct of such defense, (iii) the Company ceases or terminates the employment of such Counsel retained by the Company or (iv) such Counsel retained by the Company withdraws with respect to such defense. The Company shall not be liable for any settlement of any such action without its consent, but if any such action is settled with the consent of the Company or if there be final judgment for the plaintiff in any such action, the Company agrees to indemnify and hold harmless the Trustee from and against any loss or liability by reason of such settlement or final judgment. The Company agrees that the indemnification provided herein shall survive the termination of this Agreement or the Indenture or the resignation of the Trustee.

(d) The Company agrees to pay all costs incurred in connection with the issuance of the Bonds from sources other than Bond proceeds and the Issuer shall have no obligation with respect to such costs.

(e) The Company agrees to indemnify and hold harmless the Issuer and any member, officer, official or employee of the Issuer against any and all losses, costs, charges, expenses, judgments and liabilities created by or arising out of this Agreement, the Indenture, the Remarketing Agreement, the Auction Agreement, the Bond Purchase Agreement, any Broker-Dealer Agreement or the Tax Agreement or otherwise incurred in connection with the issuance of the Bonds. The Issuer may submit to the Company periodic statements, not more frequently than monthly, for its Administrative Expenses and the Company shall make payment to the Issuer of the full amount of each such statement within 30 days after the Company receives such statement.

(f) The Company agrees to pay (i) to the Remarketing Agent the reasonable fees, charges and expenses of such Remarketing Agent and (ii) to the Auction Agent the reasonable fees, charges and expenses of such Auction Agent, and the Issuer shall have no obligation or liability with respect to the payment of any such fees, charges or expenses.

(g) In the event the Company shall fail to make any of the payments required by (a) or (b) of this Section 4.2, the payment so in default shall continue as an obligation of the Company until the amount in default shall have been fully paid and the Company will pay interest to the extent permitted by law, on any overdue amount at the rate of interest borne by the Bonds on the date on which such amount became due and payable until paid. In the event that the Company shall fail to make any of the payments required by (c), (d), (e) or (f) of this Section 4.2, the payment so in default shall continue as an obligation of the Company until the amount in default shall have been fully paid, and the Company agrees to pay the same with interest thereon to the extent permitted by law at a rate 1% above the rate of interest then charged by the Trustee on 90-day commercial loans to its prime commercial borrowers until paid.

SECTION 4.3. NO DEFENSE OR SET-OFF. The obligation of the Company to make the payments pursuant to this Agreement shall be absolute and unconditional without defense or set-off by reason of any default by the Issuer under this Agreement or under any other agreement

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between the Company and the Issuer or for any other reason, it being the intention of the parties that the payments required hereunder will be paid in full when due without any delay or diminution whatsoever.

SECTION 4.4. PAYMENTS PLEDGED AND ASSIGNED. It is understood and agreed that all payments required to be made by the Company pursuant to Section 4.2 hereof (except payments made to the Trustee pursuant to Section 4.2(c) hereof, to the Remarketing Agent and the Auction Agent pursuant to Section 4.2(f) hereof, to the Issuer pursuant to Section 4.2(e) hereof and to any or all the Issuer and the Trustee and the Remarketing Agent pursuant to Section 4.2(g) hereof) and certain rights of the Issuer hereunder are pledged and assigned by the Indenture. The Company consents to such pledge and assignment. The Issuer hereby directs the Company and the Company hereby agrees to pay or cause to be paid to the Trustee all said amounts except payments to be made to the Remarketing Agent and the Auction Agent pursuant to Section 4.2(f) hereof and payments to be made to the Issuer pursuant to Sections 4.2(e) and (g) hereof. The Project will not constitute any part of the security for the Bonds, except to the extent that the Trustee as holder of G&R Notes has a lien on property under the G&R Indenture.

SECTION 4.5. PAYMENT OF THE BONDS AND OTHER AMOUNTS. The Bonds and interest and premium, if any, thereon shall be payable solely from (i) payments made by the Company to the Trustee under Section 4.2(a) hereof and (ii) other moneys on deposit in the Bond Fund and available therefor.

Payments of principal of, and premium, if any, or interest on, the Bonds with moneys in the Bond Fund constituting proceeds from the sale of the Bonds or earnings on investments made under the provisions of the Indenture shall be credited against the obligation to pay required by Section 4.2(a) hereof.

Whenever any Bonds are redeemable in whole or in part at the option of the Company, the Trustee, on behalf of the Issuer, shall redeem the same upon the request of the Company and such redemption (unless conditional) shall be made from payments made by the Company to the Trustee under Section 4.2(a) hereof equal to the redemption price of such Bonds.

Whenever payment or provision therefor has been made in respect of the principal of, or premium, if any, or interest on, all or any portion of the Bonds in accordance with the Indenture (whether at maturity or upon redemption or acceleration or upon provision for payment in accordance with Article VIII of the Indenture), payments shall be deemed paid to the extent such payment or provision therefor has been made and is considered to be a payment of principal of, or premium, if any, or interest on, such Bonds. If such Bonds are thereby deemed paid in full, the Trustee shall notify the Company and the Issuer that such payment requirement has been satisfied. Subject to the foregoing, or unless the Company is entitled to a credit under this Agreement or the Indenture, all payments shall be in the full amount required by Section 4.2(a) hereof.

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ARTICLE V

SPECIAL COVENANTS AND AGREEMENTS

SECTION 5.1. COMPANY TO MAINTAIN ITS CORPORATE EXISTENCE; CONDITIONS UNDER WHICH EXCEPTIONS PERMITTED. The Company agrees that during the term of this Agreement, it will maintain its corporate existence and its good standing in the State, will not dissolve or otherwise dispose of all or substantially all of its assets and will not consolidate with or merge into another corporation unless the acquirer of its assets or the corporation with which it shall consolidate or into which it shall merge shall (i) be a corporation organized under the laws of one of the states of the United States of America, (ii) be qualified to do business in the State, and (iii) assume in writing all of the obligations of the Company under this Agreement and the Tax Agreement. Any transfer of all or substantially all of the Company's generation assets shall not be deemed to constitute a "disposition of all or substantially all of the Company's assets" within the meaning of the preceding paragraph. Any such transfer of the Company's generation assets shall not relieve the Company of any of its obligations under this Agreement.

The Company hereby agrees that so long as any of the Bonds are insured by a Bond Insurance Policy issued by the Bond Insurer and the Bond Insurer shall not have failed to comply with its payment obligations under such Policy, in the event of a Reorganization, unless otherwise consented to by the Bond Insurer, the obligations of the Company under, and in respect of, the Bonds, the G&R Notes, the G&R Indenture and the Agreement shall be assumed by, and shall become direct and primary obligations of, a Regulated Utility Company such that at all times the obligor under this Agreement and the obligor on the G&R Notes is a Regulated Utility Company. The Company shall deliver to the Bond Insurer a certificate of the president, any vice president or the treasurer and an opinion of counsel reasonably acceptable to the Bond Insurer stating in each case that such Reorganization complies with the provisions of this paragraph.

The Company need not comply with any of the provisions of this Section 5.1 if, at the time of such merger or consolidation, the Bonds will be defeased as provided in Article VIII of the Indenture. The Company need not comply with the provisions of the second paragraph of this Section 5.1 if the Bonds are redeemed as provided in Section 3.01(B)(3) of the Indenture or if the Bond Insurance Policy is terminated as described in Section 3.06 of the Indenture in connection with a purchase of the Bonds by the Company in lieu of their redemption.

SECTION 5.2. ANNUAL STATEMENT. The Company agrees to have an annual audit made by its regular independent certified public accountants and to furnish the Trustee (within 30 days after receipt by the Company) with a balance sheet and statement of income and surplus showing the financial condition of the Company and its consolidated subsidiaries, if any, at the close of each fiscal year and the results of operations of the Company and its consolidated subsidiaries, if any, for each fiscal year, accompanied by a report of said accountants that such statements have been prepared in accordance with generally accepted accounting principles. The Company's obligations under this Section 5.2 may be satisfied by delivering a copy of the Company's Annual Report on Form 10-K to the Trustee within 10 days after it is filed with the Securities and Exchange Commission.

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Delivery of such reports, information and documents to the Trustee is for informational purposes only and the Trustee's receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company's compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on officer's certificates).

SECTION 5.3. MAINTENANCE AND REPAIR; INSURANCE; TAXES; DISPOSITION. For so long as the Company shall own the Project, (i) the Company shall maintain or cause to be maintained the Project in good repair and keep it properly insured and shall promptly pay or cause to be paid all costs thereof, and (ii) the Company shall promptly pay or cause to be paid all installments of taxes, installments of special assessments, and all governmental, utility and other charges with respect to the Project, when due. The Company may, at its own expense and in its own name in good faith contest or appeal any such taxes, assessments or other charges, or installments thereof, but shall not permit any such taxes, assessments or other charges, or installments thereof, to remain unpaid if such nonpayment shall subject the Project or any part thereof to loss or forfeiture. The Company, subject to the provisions of Section 3.4 hereof, is not required by this Agreement to operate, or cause to be operated, any portion of the Project after the Company shall deem in its discretion that such continued operation by the Company is not advisable, and in such event the Company may sell, lease or retire all or any such portion of the Project. Subject to the provisions of Section 3.4 hereof, the net proceeds from such sale, lease or other disposition, if any, shall belong to, and may be used for any lawful purpose by, the Company. Upon disposition of the Project in its entirety by the Company in accordance with this Section 5.3, the Company shall be discharged from its obligations to operate, maintain, repair and insure the Project as set forth in this Section 5.3. Any such sale, lease or other disposition shall comply with the requirements of the Tax Agreement. Under any and all circumstances, the Issuer shall have no obligation whatsoever with respect to the operation, maintenance, repair or insurance of the Project.

SECTION 5.4. RECORDATION AND OTHER INSTRUMENTS. The Company shall cause such security agreements, financing statements and all supplements thereto and other instruments as may be required from time to time to be kept, to be recorded and filed in such manner and in such places as may be required by law in order to fully preserve, protect and perfect the security of the Owners of the Bonds and the rights of the Trustee, and to perfect the security interest created by the Indenture. The Company agrees to abide by the provisions of
Section 5.11 of the Indenture to the extent applicable to the Company.

SECTION 5.5. NO WARRANTY BY THE ISSUER. The Issuer makes no warranty, either express or implied, as to the Project or that it will be suitable for the purposes of the Company or needs of the Company.

SECTION 5.6. AGREEMENT AS TO OWNERSHIP OF THE PROJECT. The Issuer and the Company agree that title to the Project shall not be in the Issuer, and that the Issuer shall have no interest in the Project.

SECTION 5.7. COMPANY TO FURNISH NOTICE OF RATE PERIOD ADJUSTMENTS; LIQUIDITY FACILITY REQUIREMENTS; AUCTION RATE PERIOD PROVISIONS. The Company is hereby granted the

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option to designate from time to time changes in Rate Periods (and to rescind such changes) in the manner and to the extent set forth in Section 2.03 of the Indenture. In the event the Company elects to exercise any such option, the Company agrees that it shall cause notices of adjustments of Rate Periods (or rescissions thereof) to be given to the Issuer, the Trustee and the Remarketing Agent in accordance with Section 2.03(a), (b), (c), (d) or (e) of the Indenture, and a copy of each such notice shall also be given at such time to S&P and Moody's.

The Company hereby agrees that, so long as the Bonds are insured by a Bond Insurance Policy issued by the Bond Insurer and notwithstanding the provisions of Section 2.03 of the Indenture, it shall not give notice of its intention to adjust the Rate Period for the Bonds to a Daily Rate Period, a Weekly Rate Period or a Flexible Rate Period until the Company shall provide a liquidity facility reasonably acceptable to the Bond Insurer from a liquidity facility provider reasonably acceptable to the Bond Insurer in accordance with the Bond Insurer's liquidity facility requirements to be effective on the related date of adjustment.

If during any Auction Rate Period (i) consisting of Auction Periods of 35 days or less, the Bonds shall bear interest at the Maximum Interest Rate for a period in excess of 180 days, or (ii) consisting of one Auction Period of 180 days or more, the Bonds shall bear interest at the Maximum Interest Rate for such Period, the Company shall notify the Bond Insurer in writing of such event and agrees to cooperate with the Bond Insurer to take all steps reasonably necessary to adjust the Rate Period on the Bonds as soon as reasonably practicable in accordance with the provisions of the Indenture to the Rate Period which the Remarketing Agent advises the Company and the Bond Insurer will be the lowest interest rate (taking into account all relevant costs) which would enable the Remarketing Agent to sell all the Bonds on the date of such adjustment at a price equal to 100% of the principal amount thereof (the "Lowest Interest Rate Period"). If at such time the Company shall be in default under the Agreement but the Bond Insurer shall not have failed to comply with its payment obligations under the Bond Insurance Policy, the Bond Insurer may, in its discretion, direct the Company to provide notice of the adjustment of the Rate Period on the Bonds to the Lowest Interest Rate Period in accordance with the provisions of Section 2.03 of the Indenture.

SECTION 5.8. INFORMATION REPORTING, ETC. The Issuer covenants and agrees that, upon the direction of the Company or Bond Counsel, it will mail or cause to be mailed to the Secretary of the Treasury (or his designee as prescribed by regulation, currently the Internal Revenue Service Center, Ogden, Utah) a statement setting forth the information required by Section 149(e) of the Code, which statement shall be in the form of the Information Return for Tax-Exempt Private Activity Bond Issues (Form 8038) of the Internal Revenue Service (or any successor form) and which shall be completed by the Company and Bond Counsel based in part upon information supplied by the Company and Bond Counsel.

SECTION 5.9. LIMITED LIABILITY OF ISSUER. Any obligation or liability of the Issuer created by or arising out of this Agreement or otherwise incurred in connection with the issuance of the Bonds (including without limitation any liability created by or arising out of the representations, warranties or covenants set forth herein or otherwise) shall not impose a debt or pecuniary liability upon the Issuer or the State or any political subdivision thereof, or a charge upon the general credit or taxing powers of any of the foregoing, but shall be payable solely out

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of the Revenues or other amounts payable by the Company to the Issuer hereunder or otherwise (including without limitation any amounts derived from indemnifications given by the Company).

Neither the issuance of the Bonds nor the delivery of this Agreement shall, directly or indirectly or contingently, obligate the Issuer or the State or any political subdivision thereof to levy any form of taxation therefor or to make any appropriation for their payment. Nothing in the Bonds or in the Indenture or this Agreement or the proceedings of the Issuer authorizing the Bonds or in the Act or in any other related document shall be construed to authorize the Issuer to create a debt of the Issuer or the State or any political subdivision thereof within the meaning of any constitutional or statutory provision of the State. The principal of, and premium, if any, and interest on, the Bonds shall be payable solely from the funds pledged for their payment in accordance with the Indenture and available therefor under this Agreement. Neither the State nor any political subdivision thereof shall in any event be liable for the payment of the principal of, premium, if any, or interest on, the Bonds or for the performance of any pledge, obligation or agreement of any kind whatsoever which may be undertaken by the Issuer. No breach of any such pledge, obligation or agreement may impose any pecuniary liability upon the Issuer or the State or any political subdivision thereof, or any charge upon the general credit or against the taxing power of Coconino County, Arizona or the State or any political subdivision thereof. The Issuer has no taxing power.

SECTION 5.10. INSPECTION OF PROJECT. The Company agrees that the Issuer and the Trustee and their duly authorized representatives shall have the right at all reasonable times to enter upon and examine and inspect the Project property and shall also be permitted, at all reasonable times, to examine the books and records of the Company insofar as they relate to the Project.

ARTICLE VI

EVENTS OF DEFAULT AND REMEDIES

SECTION 6.1. EVENTS OF DEFAULT DEFINED. The following shall be "events of default" under this Agreement and the terms "event of default" or "default" shall mean, whenever they are used in this Agreement, any one or more of the following events:

(a) Failure by the Company to pay when due any amounts required to be paid under Section 4.2(a) hereof, which failure results in an event of default under subparagraph (a) or (b) of Section 9.01 of the Indenture; or

(b) Failure by the Company to pay or cause to be paid any payment required to be paid under Section 4.2(b) hereof, which failure results in an event of default under subparagraph (c) of Section 9.01 of the Indenture; or

(c) Failure by the Company to observe and perform any covenant, condition or agreement on its part to be observed or performed in this Agreement, other than as referred to in (a) and (b) above, for a period of 90 days after written notice, specifying

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such failure and requesting that it be remedied and stating that such notice is a "Notice of Default" hereunder, given to the Company by the Trustee or to the Company and the Trustee by the Issuer, unless the Issuer and the Trustee shall agree in writing to an extension of such time prior to its expiration; provided, however, if the failure stated in the notice cannot be corrected within the applicable period, the Issuer and the Trustee will not unreasonably withhold their consent to an extension of such time if corrective action is instituted within the applicable period and diligently pursued until the failure is corrected and such corrective action or diligent pursuit is evidenced to the Trustee by a certificate of an Authorized Company Representative; or

(d) A proceeding or case shall be commenced, without the application or consent of the Company, in any court of competent jurisdiction seeking
(i) liquidation, reorganization, dissolution, winding-up or composition or adjustment of debts, (ii) the appointment of a trustee, receiver, custodian, liquidator or the like of the Company or of all or any substantial part of its assets, or (iii) similar relief under any law relating to bankruptcy, insolvency, reorganization, winding-up or composition or adjustment of debts, and such proceeding or cause shall continue undismissed, or an order, judgment, or decree approving or ordering any of the foregoing shall be entered and shall continue in effect for a period of 90 days; or an order for relief against the Company shall be entered against the Company in an involuntary case under the Bankruptcy Code (as now or hereafter in effect) or other applicable law; or

(e) The Company shall admit in writing its inability to pay its debts generally as they become due or shall file a petition in voluntary bankruptcy or shall make any general assignment for the benefit of its creditors, or shall consent to the appointment of a receiver or trustee of all or substantially all of its property, or shall commence a voluntary case under the Bankruptcy Code (as now or hereafter in effect), or shall file in any court of competent jurisdiction a petition seeking to take advantage of any other law relating to bankruptcy, insolvency, reorganization, winding-up or composition or adjustment of debts, or shall fail to controvert in a timely or appropriate manner, or acquiesce in writing to, any petition filed against it in an involuntary case under such Bankruptcy Code or other applicable law; or

(f) Dissolution or liquidation of the Company; provided that the term "dissolution or liquidation of the Company" shall not be construed to include the cessation of the corporate existence of the Company resulting either from a merger or consolidation of the Company into or with another corporation or a dissolution or liquidation of the Company following a transfer of all or substantially all of its assets as an entirety, under the conditions permitting such actions contained in Section 5.1 hereof; or

(g) The occurrence of an "event of default" under the Indenture.

The foregoing provisions of Section 6.1(c) are subject to the following limitations: If by reason of Force Majeure the Company is unable in whole or in part to carry out its agreements on its part herein contained, other than the obligations on the part of the Company contained in

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Article IV and Sections 5.3 and 6.4 hereof, the Company shall not be deemed in default during the continuance of such inability. The Company agrees, however, to remedy with all reasonable dispatch the cause or causes preventing the Company from carrying out its agreements; provided that the settlement of strikes, lockouts and other industrial disturbances shall be entirely within the discretion of the Company and the Company shall not be required to make settlement of strikes, lockouts and other industrial disturbances by acceding to the demands of the opposing party or parties when such course is in the sole judgment of the Company unfavorable to the Company.

SECTION 6.2. REMEDIES ON DEFAULT. Whenever any event of default referred to in Section 6.1 hereof shall have happened and be continuing, the Trustee, as assignee of the Issuer:

(a) shall, by notice in writing to the Company, declare the unpaid indebtedness under Section 4.2(a) hereof to be due and payable immediately, if concurrently with or prior to such notice the unpaid principal amount of the Bonds shall have been declared to be due and payable, and upon any such declaration the same (being an amount sufficient, together with other moneys available therefor in the Bond Fund, to pay the unpaid principal of, premium, if any, and interest accrued on, the Bonds) shall become and shall be immediately due and payable as liquidated damages; and

(b) may take whatever action at law or in equity as may appear necessary or desirable to collect the payments and other amounts then due and thereafter to become due hereunder or to enforce performance and observance of any obligation, agreement or covenant of the Company under this Agreement.

Any amounts collected pursuant to action taken under this Section 6.2 shall be paid into the Bond Fund (unless otherwise provided in this Agreement) and applied in accordance with the provisions of the Indenture. No action taken pursuant to this Section 6.2 shall relieve the Company from the Company's obligations pursuant to Section 4.2 hereof.

No recourse shall be had for any claim based on this Agreement against any officer, director or stockholder, past, present or future, of the Company as such, either directly or through the Company, under any constitutional provision, statute or rule of law, or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise.

Nothing herein contained shall be construed to prevent the Issuer from enforcing directly any of its rights under Sections 4.2(e), 4.2(g), 5.3 and 6.4 hereof.

The Company shall promptly notify the Issuer of any action taken by the Company under the grant of authority from the Issuer under the last paragraph of
Section 9.01 of the Indenture.

SECTION 6.3. NO REMEDY EXCLUSIVE. No remedy herein conferred upon or reserved to the Issuer is intended to be exclusive of any other available remedy or remedies, but each and every such remedy shall be cumulative and shall be in addition to every other remedy given under this Agreement or now or hereafter existing at law or in equity or by statute. No delay or omission to exercise any right or power accruing upon any default shall impair any such right or

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power or shall be construed to be a waiver thereof, but any such right and power may be exercised from time to time and as often as may be deemed expedient. In order to entitle the Issuer or the Trustee to exercise any remedy reserved to it in this Article, it shall not be necessary to give any notice, other than such notice as may be herein expressly required. Subject to the provisions of the Indenture and hereof, such rights and remedies as are given the Issuer hereunder shall also extend to the Trustee. The Owners of the Bonds, subject to the provisions of the Indenture, shall be entitled to the benefit of all covenants and agreements herein contained.

SECTION 6.4. AGREEMENT TO PAY FEES AND EXPENSES OF COUNSEL. In the event the Company should default under any of the provisions of this Agreement and the Issuer or the Trustee should employ Counsel or incur other expenses for the collection of the indebtedness hereunder or the enforcement of performance or observance of any obligation or agreement on the part of the Company herein contained, the Company agrees that it will on written demand therefor pay to the Trustee or the Issuer (or to the Counsel for either of such parties if directed by such party), the reasonable fees and expenses of such Counsel and such other expenses so incurred by or on behalf of the Issuer or the Trustee.

SECTION 6.5. NO ADDITIONAL WAIVER IMPLIED BY ONE WAIVER; CONSENTS TO WAIVERS. In the event any agreement contained in this Agreement should be breached by either party and thereafter waived by the other party, such waiver shall be limited to the particular breach so waived and shall not be deemed to waive any other breach hereunder. No waiver shall be effective unless in writing and signed by the party making the waiver. The Issuer shall have no power to waive any default hereunder by the Company without the consent of the Trustee to such waiver. The Trustee shall have the power to waive any default by the Company hereunder, except a default under Section 3.4, 4.2(e), 4.2(g), 5.3 or 6.4 hereof, in so far as it pertains to the Issuer, without the prior written concurrence of the Issuer. Notwithstanding the foregoing, if, after the acceleration of the maturity of the outstanding Bonds by the Trustee pursuant to
Section 9.02 of the Indenture, (i) all arrears of principal of and interest on the outstanding Bonds and interest on overdue principal and (to the extent permitted by law) on overdue installments of interest at the rate of interest borne by the Bonds on the date on which such principal or interest became due and payable and the premium, if any, on all Bonds then Outstanding which have become due and payable otherwise than by acceleration, and all other sums payable under the Indenture, except the principal of and the interest on such Bonds which by such acceleration shall have become due and payable, shall have been paid, (ii) all other things shall have been performed in respect of which there was a default, (iii) there shall have been paid the reasonable fees and expenses of the Trustee and of the Owners of such Bonds, including reasonable attorneys' fees paid or incurred and (iv) such event of default under the Indenture shall be waived in accordance with Section 9.09 of the Indenture with the consequence that such acceleration under Section 9.02 of the Indenture is rescinded, then the Company's default hereunder shall be deemed to have been waived and its consequences rescinded and no further action or consent by the Trustee or the Issuer shall be required; provided that there has been furnished an opinion of Bond Counsel to the effect that such waiver will not adversely affect the exemption from federal income taxes of interest on the Bonds.

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ARTICLE VII

OPTIONS AND OBLIGATIONS OF COMPANY;
PREPAYMENTS; REDEMPTION OF BONDS

SECTION 7.1. OPTION TO PREPAY. The Company shall have, and is hereby granted, the option to prepay the payments due hereunder in whole or in part at any time or from time to time (a) to provide for the redemption of Bonds pursuant to the provisions of Section 3.01(A) of the Indenture or (b) to provide for the defeasance of the Bonds pursuant to Article VIII of the Indenture. In the event the Company elects to provide for the redemption of Bonds as permitted by this Section, the Company shall notify and instruct the Trustee in accordance with Section 7.3 hereof to redeem all or any portion of the Bonds in advance of maturity. If the Company so elects, any redemption of Bonds pursuant to Section 3.01(A) of the Indenture may be made conditional.

SECTION 7.2. OBLIGATION TO PREPAY. The Company covenants and agrees that if all or any part of the Bonds are unconditionally called for redemption in accordance with the Indenture or become subject to mandatory redemption (except as otherwise provided in Section 3.02 of the Indenture), it will prepay the indebtedness hereunder in whole or in part in an amount sufficient to redeem such Bonds on the date fixed for the redemption of such Bonds.

SECTION 7.3. NOTICE OF PREPAYMENT. Upon the exercise of the option granted to the Company in Section 7.1 hereof, or upon the Company having knowledge of the occurrence of any event requiring mandatory redemption of the Bonds in accordance with Section 3.01(B) of the Indenture, the Company shall give written notice to the Issuer, the Remarketing Agent, the Auction Agent and the Trustee. The notice shall provide for the date of the application of the prepayment made by the Company hereunder to the retirement of the Bonds in whole or in part pursuant to call for redemption and shall be given by the Company not less than five Business Days prior to the date notice of such redemption must be given by the Trustee to the Bondholders as provided in Section 3.02 of the Indenture or such later date as is acceptable to the Trustee and the Issuer.

ARTICLE VIII

MISCELLANEOUS

SECTION 8.1. NOTICES. Except as otherwise provided herein, all notices, certificates or other communications hereunder shall be sufficiently given if in writing and shall be deemed given when mailed by first class mail, postage prepaid, or by qualified overnight courier service, courier charges prepaid, or by facsimile (receipt of which is orally confirmed) addressed as follows: if to the Issuer, c/o Mangum, Wall, Stoops & Warden, P.L.L.C., 222 East Birch Avenue, Flagstaff, Arizona 86001, or to telecopy number (928) 773-1312, Attention:
Franklin Hoover, Esq.; if to the Company, at P.O. Box 230, 6226 West Sahara Avenue, Las Vegas, Nevada 89146, or to telecopy number (702) 227-2250, Attention: Treasurer; if to the Trustee, at U.S. Bank Center, 101 North First Avenue, Suite 1600, Phoenix, Arizona 85003, or to telecopy

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number (602) 257-5433, Attention: Corporate Trust Services; if to the Remarketing Agent, at the address set forth in the Remarketing Agreement, if any; and if to the Auction Agent, at the address set forth in the Auction Agreement, if any. In case by reason of the suspension of regular mail service, it shall be impracticable to give notice by first class mail of any event to the Issuer, to the Company, to the Remarketing Agent, to the Auction Agent when such notice is required to be given pursuant to any provisions of this Agreement, then any manner of giving such notice as shall be satisfactory to the Trustee shall be deemed to be sufficient giving of such notice. The Issuer, the Company, the Trustee, the Remarketing Agent and the Auction Agent may, by notice pursuant to this Section 8.1, designate any different addresses to which subsequent notices, certificates or other communications shall be sent.

SECTION 8.2. ASSIGNMENTS. This Agreement may not be assigned by either party without consent of the other and the Trustee, except that the Issuer shall assign to the Trustee its rights under this Agreement (except under Sections 4.2(e), 4.2(g), 5.3, and 6.4 hereof) as provided by Section 4.4 hereof, and the Company may assign its rights under this Agreement to any transferee or any surviving or resulting corporation as provided by Section 5.1 hereof.

SECTION 8.3. SEVERABILITY. If any provision of this Agreement shall be held or deemed to be or shall, in fact, be illegal, inoperative or unenforceable, the same shall not affect any other provision or provisions herein contained or render the same invalid, inoperative, or unenforceable to any extent whatever.

SECTION 8.4. EXECUTION OF COUNTERPARTS. This Agreement may be simultaneously executed in several counterparts, each of which shall be an original and all of which shall constitute but one and the same instrument.

SECTION 8.5. AMOUNTS REMAINING IN BOND FUND. It is agreed by the parties hereto that after payment in full of (i) the Bonds (or provision for payment thereof having been made in accordance with the provisions of the Indenture),
(ii) the fees, charges and expenses of the Trustee in accordance with the Indenture, (iii) the Administrative Expenses, (iv) the fees and expenses of the Remarketing Agent, the Auction Agent and the Issuer and (v) all other amounts required to be paid under this Agreement and the Indenture, any amounts remaining in the Bond Fund shall belong to and be paid to the Company by the Trustee.

SECTION 8.6. AMENDMENTS, CHANGES AND MODIFICATIONS. This Agreement may be amended, changed, modified, altered or terminated only by written instrument executed by the Issuer and the Company, and only if the written consent of the Trustee thereto is obtained, and only in accordance with the provisions of Article XII of the Indenture.

SECTION 8.7. GOVERNING LAW. This Agreement shall be governed exclusively by and construed in accordance with the applicable laws of the State.

SECTION 8.8. AUTHORIZED ISSUER AND COMPANY REPRESENTATIVES. Whenever under the provisions of this Agreement the approval of the Issuer or the Company is required to take some action at the request of the other, such approval of such request shall be given for the Issuer by the Authorized Issuer Representative and for the Company by the Authorized Company

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Representative, and the other party hereto and the Trustee shall be authorized to act on any such approval or request and neither party hereto shall have any complaint against the other or against the Trustee as a result of any such action taken.

SECTION 8.9. TERM OF THE AGREEMENT. This Agreement shall be in full force and effect from its date to and including such date as all of the Bonds issued under the Indenture shall have been fully paid or retired (or provision for such payment shall have been made as provided in the Indenture), provided that all representations and certifications by the Company as to all matters affecting the tax-exempt status of the Bonds and the covenants of the Company in Sections 4.2(c), 4.2(d), 4.2(e), 4.2(f) and 4.2(g) hereof shall survive the termination of this Agreement.

SECTION 8.10. CANCELLATION AT EXPIRATION OF TERM. At the acceleration, termination or expiration of the term of this Agreement and following full payment of the Bonds or provision for payment thereof and of all other fees and charges having been made in accordance with the provisions of this Agreement and the Indenture, the Issuer shall deliver to the Company any documents and take or cause the Trustee to take such actions as may be necessary to effectuate the cancellation and evidence the termination of this Agreement.

SECTION 8.11. BOND INSURANCE. The payment of the principal of and interest on the Bonds when due is to be insured under, and to the extent provided in, the Bond Insurance Policy, including the endorsements thereto, to be issued by the Bond Insurer, and the Issuer and the Company agree to be bound by the provisions contained in Appendix C to the Indenture and the Company agrees to be bound by the provisions contained in the Insurance Agreement. In the event of any conflict between the provisions of Appendix C to the Indenture and the provisions of this Agreement, the provisions of Appendix C shall govern and control.

All references in this Agreement to the Bond Insurer shall only apply so long as a Bond Insurance Policy issued by the Bond Insurer is in effect for any of the Bonds (and the Bond Insurer has not failed to comply with its payment obligations under the Bond Insurance Policy).

SECTION 8.12. NOTICE REGARDING CANCELLATION OF CONTRACTS. As required by the provisions of Section 38-511, Arizona Revised Statutes, as amended, notice is hereby given that political subdivisions of the State of Arizona or any of their departments or agencies may, within three (3) years of its execution, cancel any contract, without penalty or further obligation, made by the political subdivisions or any of their departments or agencies on or after September 30, 1988, if any person significantly involved in initiating, negotiating, securing, drafting or creating the contract on behalf of the political subdivisions or any of their departments or agencies is, at any time while the contract or any extension of the contract is in effect, an employee or agent of any other party to the contract in any capacity or a consultant to any other party of the contract with respect to the subject matter of the contract. The cancellation shall be effective when written notice from the chief executive officer or governing body of the political subdivision is received by all other parties to the contract unless the notice specifies a later time.

The Company covenants and agrees not to employ as an employee, agent or, with respect to the subject matter of this Agreement, a consultant, any person significantly involved in

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initiating, negotiating, securing, drafting or creating this Agreement on behalf of the Issuer within three (3) years from the execution hereof, unless a waiver is provided by the Issuer.

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IN WITNESS WHEREOF, the Issuer and the Company have caused this Agreement to be executed in their respective corporate names and their respective corporate seals to be hereunto affixed and attested by their duly authorized officers, all as of the date first above written.

COCONINO COUNTY, ARIZONA POLLUTION
CONTROL CORPORATION

By

President Board of Directors

(SEAL)

Attest:


Secretary

NEVADA POWER COMPANY

By
Treasurer

(SEAL)

Attest:


Secretary

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Exhibit 10.3


FINANCING AGREEMENT

Dated as of August 1, 2006

By and Between

COCONINO COUNTY, ARIZONA POLLUTION CONTROL CORPORATION

and

NEVADA POWER COMPANY

RELATING TO
POLLUTION CONTROL REFUNDING REVENUE BONDS
(NEVADA POWER COMPANY PROJECT)

SERIES 2006B


The amounts payable to the Issuer (except for amounts payable to, and certain rights and privileges of, the Issuer under Sections 4.2(e), 4.2(g), 5.3 and 6.4 hereof and any rights of the Issuer to receive any notices, certificates, requests, requisitions or communications hereunder) and certain other rights of the Issuer under this Financing Agreement have been pledged and assigned under the Indenture of Trust dated as of August 1, 2006, between the Issuer and U.S. Bank National Association, as Trustee.


FINANCING AGREEMENT


TABLE OF CONTENTS

(This Table of Contents is not a part of this Agreement and is only for convenience of reference).

SECTION                                     HEADING                         PAGE
-------                                     -------                         ----
ARTICLE I          DEFINITIONS...........................................     1

ARTICLE II         REPRESENTATIONS.......................................     5
   Section 2.1.    Representations and Covenants by the Issuer...........     5
   Section 2.2.    Representations by the Company........................     5

ARTICLE III        ISSUANCE OF THE BONDS.................................     6
   Section 3.1.    Agreement to Issue Bonds; Application of Bond
                      Proceeds...........................................     6
   Section 3.2.     Deposit of Additional Funds by Company; Redemption of
                      Prior Bonds........................................     6
   Section 3.3.    Investment of Moneys in the Bond Fund and the Prior
                      Bonds Redemption Fund..............................     6
   Section 3.4.    Tax Exempt Status of Bonds............................     7

ARTICLE IV         LOAN AND PROVISIONS FOR REPAYMENT.....................     8
   Section 4.1.    Loan of Bond Proceeds.................................     8
   Section 4.2.    Loan Repayments and Other Amounts Payable.............     8
   Section 4.3.    No Defense or Set-Off.................................    10
   Section 4.4.    Payments Pledged and Assigned.........................    10
   Section 4.5.    Payment of the Bonds and Other Amounts................    10

ARTICLE V          SPECIAL COVENANTS AND AGREEMENTS......................    11
   Section 5.1.    Company to Maintain its Corporate Existence;
                      Conditions Under Which Exceptions Permitted........    11
   Section 5.2.    Annual Statement......................................    12
   Section 5.3.    Maintenance and Repair; Insurance; Taxes;
                      Disposition........................................    12
   Section 5.4.    Recordation and Other Instruments.....................    12
   Section 5.5.    No Warranty by the Issuer.............................    13
   Section 5.6.    Agreement as to Ownership of the Project..............    13
   Section 5.7.    Company to Furnish Notice of Rate Period Adjustments;
                      Liquidity Facility Requirements; Auction Rate
                      Period Provisions..................................    13
   Section 5.8.    Information Reporting, Etc............................    14

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   Section 5.9.    Limited Liability of Issuer...........................    14
   Section 5.10.   Inspection of Project.................................    14

ARTICLE VI         EVENTS OF DEFAULT AND REMEDIES........................    15
   Section 6.1.    Events of Default Defined.............................    15
   Section 6.2.    Remedies on Default...................................    16
   Section 6.3.    No Remedy Exclusive...................................    17
   Section 6.4.    Agreement to Pay Fees and Expenses of Counsel.........    17
   Section 6.5.    No Additional Waiver Implied by One Waiver; Consents
                      to Waivers.........................................    17

ARTICLE VII        OPTIONS AND OBLIGATIONS OF COMPANY; PREPAYMENTS;
                   REDEMPTION OF BONDS...................................    18
   Section 7.1.    Option to Prepay......................................    18
   Section 7.2.    Obligation to Prepay..................................    18
   Section 7.3.    Notice of Prepayment..................................    18

ARTICLE VIII       MISCELLANEOUS.........................................    19
   Section 8.1.    Notices...............................................    19
   Section 8.2.    Assignments...........................................    19
   Section 8.3.    Severability..........................................    19
   Section 8.4.    Execution of Counterparts.............................    19
   Section 8.5.    Amounts Remaining in Bond Fund........................    20
   Section 8.6.    Amendments, Changes and Modifications.................    20
   Section 8.7.    Governing Law.........................................    20
   Section 8.8.    Authorized Issuer and Company Representatives.........    20
   Section 8.9.    Term of the Agreement.................................    20
   Section 8.10.   Cancellation at Expiration of Term....................    20
   Section 8.11.   Bond Insurance........................................    20
   Section 8.12.   Notice Regarding Cancellation of Contracts............    21

Signature................................................................    22

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THIS FINANCING AGREEMENT made and entered into as of August 1, 2006, by and between the COCONINO COUNTY, ARIZONA POLLUTION CONTROL CORPORATION, an Arizona nonprofit corporation and a political subdivision of the State of Arizona, party of the first part (hereinafter referred to as the "Issuer"), and NEVADA POWER COMPANY, a corporation duly organized and existing under the laws of the State of Nevada, party of the second part (hereinafter referred to as the "Company"),

WITNESSETH:

In consideration of the respective representations and agreements hereinafter contained, the parties hereto agree as follows (provided, that in the performance of the agreements of the Issuer herein contained, any obligation it may thereby incur shall not constitute or give rise to a pecuniary liability or a charge upon its general credit or against its taxing powers but shall be payable solely out of the Revenues (as hereinafter defined) derived from this Financing Agreement and the Bonds, as hereinafter defined):

ARTICLE I

DEFINITIONS

The following terms shall have the meanings specified in this Article unless the context clearly requires otherwise. The singular shall include the plural and the masculine shall include the feminine.

"Act" means Title 35, Chapter 6, Arizona Revised Statutes, as amended.

"Administrative Expenses" means the reasonable and necessary expenses
(including the reasonable value of employee services and fees of Counsel)
incurred by the Issuer in connection with the Bonds, this Agreement, the Indenture and any transaction or event contemplated by this Agreement or the Indenture.

"Agreement" means this Financing Agreement by and between the Issuer and the Company, as from time to time amended and supplemented.

"Auction Agent" means the auction agent appointed in accordance with the provisions of the Indenture.

"Authorized Company Representative" means any person who, at the time, shall have been designated to act on behalf of the Company by a written certificate furnished to the Issuer, the Remarketing Agent and the Trustee containing the specimen signature of such person and signed on behalf of the Company by any officer of the Company. Such certificate may designate an alternate or alternates.


"Authorized Issuer Representative" means any person at the time designated to act on behalf of the Issuer by a written certificate furnished to the Company and the Trustee containing the specimen signature of such person and signed on behalf of the Issuer by its President, Vice President or Secretary. Such certificate may designate an alternate or alternates.

"Bankruptcy Code" means the United States Bankruptcy Reform Act of 1978, as amended from time to time, or any substitute or replacement legislation.

"Bond" or "Bonds" means, the Issuer's bonds identified in Section 2.02 of the Indenture.

"Bond Counsel" means the Counsel who renders the opinion as to the tax-exempt status of interest on the Bonds or other nationally recognized municipal bond counsel mutually acceptable to the Issuer and the Company.

"Bond Fund" means the fund created by Section 6.02 of the Indenture.

"Code" means the United States Internal Revenue Code of 1986, as amended, and regulations promulgated or proposed thereunder and, to the extent applicable to the Bonds or the Prior Bonds, the 1954 Code.

"Company" means Nevada Power Company, a Nevada corporation, and its successors and assigns and any surviving, resulting or transferee corporation as permitted in Section 5.1 hereof.

"Counsel" means an attorney at law or a firm of attorneys (who may be an employee of or counsel to the Issuer or the Company or the Trustee) duly admitted to the practice of law before the highest court of any state of the United States of America or of the District of Columbia.

"Delivery Agreement" means the Delivery Agreement of even date herewith, between the Company and the Trustee, as amended, supplemented or restated from time to time, pursuant to which the Company will issue to the Trustee the G&R Notes at the time of the initial authentication and delivery of the Bonds.

"Extraordinary Services" and "Extraordinary Expenses" means all services rendered and all expenses (including fees and expenses of Counsel) incurred under the Indenture and the Tax Agreement other than Ordinary Services and Ordinary Expenses.

"Force Majeure" means acts of God, strikes, lockouts or other industrial disturbances; acts of public enemies; orders or restraints of any kind of the governments of the United States or of the State, or any of their departments, agencies or officials, or any civil or military authority; insurrections; riots; landslides; lightning; earthquakes; fires; tornadoes; volcanoes; storms; droughts; floods; explosions, breakage, or malfunction or accident to machinery, transmission lines, pipes or canals, even if resulting from negligence; civil disturbances; or any other cause not reasonably within the control of the Company.

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"G&R Indenture" means the General and Refunding Mortgage Indenture dated as of May 1, 2001 between the Company and the G&R Trustee, as amended and supplemented.

"G&R Notes" means the Company's $13,000,000 General and Refunding Mortgage Note, Series P, No. P-3, due March 1, 2039.

"G&R Trustee" means The Bank of New York, as trustee under the G&R Indenture or any successor trustee.

"Governing Body" means the Board of Directors of the Issuer.

"Hereof," "herein," "hereunder" and other words of similar import refer to this Agreement as a whole.

"Indenture" means the Indenture of Trust relating to this Agreement between the Issuer and U.S. Bank National Association, as Trustee, of even date herewith, pursuant to which the Bonds are authorized to be issued, including any indentures supplemental thereto or amendatory thereof.

"Issuer" means the Coconino County, Arizona Pollution Control Corporation, and any successor body to the duties or functions of the Issuer.

"1954 Code" means the Internal Revenue Code of 1954, as amended, and the applicable regulations thereunder.

"Ordinary Services" and "Ordinary Expenses" means those services normally rendered and those expenses including fees and expenses of Counsel, normally incurred by a trustee or paying agent under instruments similar to the Indenture and the Tax Agreement.

"Owner" or "owner of Bonds" means the Person or Persons in whose name or names a Bond shall be registered on books of the Issuer kept by the Registrar for that purpose in accordance with the terms of the Indenture.

"Person" means natural persons, firms, partnerships, associations, corporations, trusts and public bodies.

"Prior Agreement" means the Financing Agreement, dated as of October 1, 1995, between the Issuer and the Company relating to the Prior Bonds.

"Prior Bonds" means the Issuer's Pollution Control Refunding Revenue Bonds (Nevada Power Company Project) Series 1995E, currently outstanding in the aggregate principal amount of $13,000,000.

"Prior Bond Fund" means the fund established pursuant to Section 5.02 of the Prior Indenture.

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"Prior Indenture" means the Indenture of Trust dated as of October 1, 1995 between the Issuer and The Bank of New York (successor to United States Trust Company of New York), as trustee, pursuant to which the Prior Bonds were issued.

"Prior Trustee" means The Bank of New York, as current trustee under the Prior Indenture.

"Project" means the Project as defined in the Prior Agreement which is as defined in the Financing Agreement dated as of October 1, 1976 between the Issuer and the Company.

"Project Certificate" means the Company's Project and Refunding Certificate, delivered concurrently with the issuance of the Bonds, with respect to certain facts which are within the knowledge of the Company and certain reasonable assumptions of the Company, to enable Chapman and Cutler LLP, as Bond Counsel, to determine that interest on the Bonds is not includable in the gross income of the Owners of the Bonds for federal income tax purposes.

"Rebate Fund" means the Rebate Fund, if any, created and established pursuant to the Tax Agreement.

"Regulated Utility Company" means a corporation (or a limited liability company) engaged in the distribution of electricity and which is regulated by the public utility commission where its primary electricity distribution business is located.

"Remarketing Agent" means the remarketing agent, if any, appointed in accordance with Section 4.08 of the Indenture and any permitted successor thereto.

"Reorganization" means any reorganization, consolidation or merger of the Company or its affiliates, or any transfer or lease of a substantial portion of the assets of the Company or its affiliates, as a result of which the obligor under the Agreement or the obligor on the G&R Notes ceases to be a Regulated Utility Company.

"State" means the State of Arizona.

"Tax Agreement" means the Tax Exemption Certificate and Agreement with respect to the Bonds, dated the date of delivery of the Bonds, among the Company, the Issuer and the Trustee, as from time to time amended and supplemented.

"Trust Estate" means the property conveyed to the Trustee pursuant to the Granting Clauses of the Indenture.

"Trustee" means U.S. Bank National Association, as Trustee under the Indenture, and any successor Trustee appointed pursuant to Section 10.06 or 10.09 of the Indenture at the time serving as Trustee thereunder, and any separate or co-trustee serving as such thereunder.

All other terms used herein which are defined in the Indenture shall have the same meanings assigned them in the Indenture unless the context otherwise requires.

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ARTICLE II

REPRESENTATIONS

SECTION 2.1. REPRESENTATIONS AND COVENANTS BY THE ISSUER. The Issuer makes the following representations and covenants as the basis for the undertakings on its part herein contained:

(a) The Issuer is a duly organized and existing political subdivision of the State of Arizona. Under the provisions of the Act, the Issuer is authorized to enter into the transactions contemplated by this Agreement, the Indenture and the Tax Agreement and to carry out its obligations hereunder and thereunder. The Issuer has duly authorized the execution and delivery of this Agreement, the Indenture and the Tax Agreement.

(b) The Bonds are to be issued under and secured by the Indenture, pursuant to which certain of the Issuer's interests in this Agreement and the Revenues derived by the Issuer pursuant to this Agreement will be pledged and assigned as security for payment of the principal of, premium, if any, and interest on, the Bonds.

(c) The Governing Body of the Issuer has found that the issuance of the Bonds will further the public purposes of the Act.

(d) The Issuer has not assigned and will not assign any of its interests in this Agreement other than pursuant to the Indenture.

(e) No member of the Governing Body of the Issuer, nor any other officer of the Issuer, has any interest, financial, employment or other, in the Company or in the transactions contemplated hereby.

SECTION 2.2. REPRESENTATIONS BY THE COMPANY. The Company makes the following representations as the basis for the undertakings on its part herein contained:

(a) The Company is a corporation duly incorporated under the laws of the State of Nevada, is in good standing in the State of Nevada and the State, is qualified to do business as a foreign corporation in all other states and jurisdictions wherein the nature of the business transacted by the Company or the nature of the property owned or leased by it makes such licensing or qualification necessary, and has the power to enter into and by proper corporate action has been duly authorized to execute and deliver this Agreement and the Tax Agreement.

(b) Neither the execution and delivery of this Agreement or the Tax Agreement, the consummation of the transactions contemplated hereby and thereby, nor the fulfillment of or compliance with the terms and conditions of this Agreement and the Tax Agreement, conflicts with or results in a breach of any of the terms, conditions or provisions of any corporate restriction or any agreement or instrument to which the Company is now a party or by which it is bound, or constitutes a default under any of the

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foregoing, or results in the creation or imposition of any lien, charge or encumbrance whatsoever upon any of the property or assets of the Company under the terms of any instrument or agreement other than the Indenture.

(c) The statements, information and descriptions contained in the Project Certificate and the Tax Agreement, as of the date hereof and at the time of the delivery of the Bonds to the Underwriter, are and will be true, correct and complete, do not and will not contain any untrue statement or misleading statement of a material fact, and do not and will not omit to state a material fact required to be stated therein or necessary to make the statements, information and descriptions contained therein, in the light of the circumstances under which they were made, not misleading.

ARTICLE III

ISSUANCE OF THE BONDS

SECTION 3.1. AGREEMENT TO ISSUE BONDS; APPLICATION OF BOND PROCEEDS. In order to provide funds to lend to the Company to refund the Prior Bonds as provided in Section 4.1 hereof, the Issuer agrees that it will issue under the Indenture, sell and cause to be delivered to the Underwriter, its Bonds in the aggregate principal amount of $13,000,000, bearing interest and maturing as set forth in the Indenture. The Issuer will thereupon deposit the proceeds received from the sale of the Bonds as follows: (1) in the Bond Fund, a sum equal to the accrued interest, if any, paid by the Underwriter; and (2) $13,000,000 in the Prior Bonds Redemption Fund to be remitted by the Trustee to the Prior Trustee for deposit in the Prior Bond Fund to be used to pay to the owners thereof the principal of the Prior Bonds upon redemption thereof.

SECTION 3.2. DEPOSIT OF ADDITIONAL FUNDS BY COMPANY; REDEMPTION OF PRIOR BONDS. The Company covenants that such additional amounts as may be required to redeem the Prior Bonds in accordance with Section 3.1 hereof will be timely deposited with the Prior Trustee pursuant to the Prior Indenture for such purpose. Income derived from the investment of the proceeds of the Bonds deposited in the Prior Bonds Redemption Fund will be used, to the extent available, to satisfy the obligations of the Company specified in this Section
3.2. The Company covenants that it will cause the Prior Bonds to be redeemed within 90 days after the issuance and delivery of the Bonds.

SECTION 3.3. INVESTMENT OF MONEYS IN THE BOND FUND AND THE PRIOR BONDS REDEMPTION FUND. Except as otherwise herein provided, any moneys held as a part of the Bond Fund and the Prior Bonds Redemption Fund shall be invested or reinvested by the Trustee at the specific written direction of an Authorized Company Representative as to specific investments, to the extent permitted by law, in:

(a) bonds or other obligations of the United States of America;

(b) bonds or other obligations, the payment of the principal of and interest on which is unconditionally guaranteed by the United States of America;

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(c) obligations issued or guaranteed as to principal and interest by any agency or person controlled or supervised by and acting as an instrumentality of the United States of America pursuant to authority granted by the Congress of the United States of America;

(d) obligations issued or guaranteed by any state of the United States of America, or any political subdivision of any such state, or in funds consisting of such obligations to the extent described in Section 1.148-8(e)(3)(iii) of the 1992 Treasury Regulations;

(e) prime commercial paper;

(f) prime finance company paper;

(g) bankers' acceptances drawn on and accepted by commercial banks;

(h) repurchase agreements fully secured by obligations issued or guaranteed as to principal and interest by the United States of America or by any person controlled or supervised by and acting as an instrumentality of the United States of America pursuant to authority granted by the Congress of the United States of America;

(i) certificates of deposit issued by commercial banks, including banks domiciled outside of the United States of America; and

(j) units of taxable government money market portfolios composed of obligations guaranteed as to principal and interest by the United States of America or repurchase agreements fully collateralized by such obligations.

The investments so purchased shall be held by the Trustee and shall be deemed at all times a part of the fund for which they were made and the interest accruing thereon and any profit realized therefrom shall be credited to such fund, subject to the provisions of the Tax Agreement. The Company agrees that to the extent any moneys in the Bond Fund represent moneys held for the payment of particular Bonds, or to the extent that any moneys are held for the payment of the purchase price of Bonds pursuant to Article IV of the Indenture, such moneys shall not be invested.

SECTION 3.4. TAX EXEMPT STATUS OF BONDS. The Company covenants and agrees that it has not taken or permitted and will not take or permit any action which results in interest paid on the Bonds being included in gross income of the holders or beneficial owners of the Bonds for purposes of federal income taxation (other than a holder or beneficial owner who is a "substantial user" of the Project or a "related person" within the meaning of Section 103(b)(13) of the 1954 Code). The Company covenants that none of the proceeds of the Bonds or the payments to be made under this Agreement, or any other funds which may be deemed to be proceeds of the Bonds pursuant to Section 148(a) of the Code, will be invested or used in such a way, and that no actions will be taken or not taken, as to cause the Bonds to be treated as "arbitrage bonds" within the meaning of Section 148(a) of the Code. Without limiting the

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generality of the foregoing, the Company covenants and agrees that it will comply with the provisions of the Tax Agreement and the Project Certificate.

ARTICLE IV

LOAN AND PROVISIONS FOR REPAYMENT

SECTION 4.1. LOAN OF BOND PROCEEDS. (a) The Issuer agrees, upon the terms and conditions in this Agreement, to lend to the Company the proceeds (exclusive of accrued interest, if any) received by the Issuer from the sale of the Bonds in order to refund the Prior Bonds, and the Company agrees to apply the gross proceeds of such loan to the refunding of the Prior Bonds as set forth in Sections 3.1 and 3.2 hereof.

(b) The Issuer and the Company expressly reserve the right to enter into, to the extent permitted by law, an agreement or agreements other than this Agreement, with respect to the issuance by the Issuer, under an indenture or indentures other than the Indenture, of obligations to provide additional funds to refund all or any principal amount of the Bonds.

SECTION 4.2. LOAN REPAYMENTS AND OTHER AMOUNTS PAYABLE. (a) On each date provided in or pursuant to the Indenture for the payment (whether at maturity or upon redemption or acceleration) of principal of, and premium, if any, and interest on, the Bonds, until the principal of, and premium, if any, and interest on, the Bonds shall have been fully paid or provision for the payment thereof shall have been made in accordance with the Indenture, the Company shall pay to the Trustee in immediately available funds, for deposit in the Bond Fund, as a repayment installment of the loan of the proceeds of the Bonds pursuant to
Section 4.1(a) hereof, a sum equal to the amount payable on such date (whether at maturity or upon redemption or acceleration) as principal of, and premium, if any, and interest on, the Bonds as provided in the Indenture; provided, however, that the obligation of the Company to make any such repayment installment shall be reduced by the amount of any moneys then on deposit in the Bond Fund and available for such payment; and provided further, that the obligation of the Company to make any such payment shall be deemed to be satisfied and discharged to the extent provided for under a liquidity facility (if applicable) or under the G&R Notes.

(b) The Company shall pay to the Trustee amounts equal to the amounts to be paid by the Trustee for the purchase of Bonds pursuant to Article IV of the Indenture. Such amounts shall be paid by the Company to the Trustee in immediately available funds on the date such payments pursuant to Section 4.05 of the Indenture are to be made; provided, however, that the obligation of the Company to make any such payment shall be deemed to be satisfied and discharged to the extent moneys are available from the source described in clause (i) of
Section 4.05(a) of the Indenture and to the extent moneys are available under any liquidity facility (if applicable).

(c) The Company agrees to pay to the Trustee (i) the fees of the Trustee for the Ordinary Services rendered by it and an amount equal to the Ordinary Expenses incurred by it under the Indenture and the Tax Agreement, as and when the same become due, and (ii) the

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reasonable fees, charges and expenses of the Trustee for reasonable Extraordinary Services and Extraordinary Expenses, as and when the same become due, incurred under the Indenture and the Tax Agreement. The Company agrees that the Trustee, its officers, agents, servants and employees, shall not be liable for, and agrees that it will at all times indemnify and hold harmless the Trustee, its officers, agents, servants and employees against, and pay all expenses of the Trustee, its officers, agents, servants and employees, relating to any lawsuit, proceeding or claim and resulting from any action or omission taken or made by or on behalf of the Trustee, its officers, agents, servants and employees pursuant to this Agreement, the Indenture or the Tax Agreement, that may be occasioned by any cause (other than the negligence or willful misconduct of the Trustee, its officers, agents, servants and employees). In case any action shall be brought against the Trustee in respect of which indemnity may be sought against the Company, the Trustee shall promptly notify the Company in writing and the Company shall be entitled to assume control of the defense thereof, including the employment of Counsel reasonably satisfactory to the Trustee and the payment of all expenses. The Trustee shall have the right to employ separate Counsel in any such action and participate in the defense thereof, but the fees and expenses of such Counsel shall be paid by the Trustee unless (i) the employment of such Counsel has been authorized by the Company,
(ii) the Trustee has determined (which determination may be based upon an opinion of counsel delivered to the Trustee and furnished to the Company) that there may be a conflict of interest of such Counsel retained by the Company between the Company and the Trustee in the conduct of such defense, (iii) the Company ceases or terminates the employment of such Counsel retained by the Company or (iv) such Counsel retained by the Company withdraws with respect to such defense. The Company shall not be liable for any settlement of any such action without its consent, but if any such action is settled with the consent of the Company or if there be final judgment for the plaintiff in any such action, the Company agrees to indemnify and hold harmless the Trustee from and against any loss or liability by reason of such settlement or final judgment. The Company agrees that the indemnification provided herein shall survive the termination of this Agreement or the Indenture or the resignation of the Trustee.

(d) The Company agrees to pay all costs incurred in connection with the issuance of the Bonds from sources other than Bond proceeds and the Issuer shall have no obligation with respect to such costs.

(e) The Company agrees to indemnify and hold harmless the Issuer and any member, officer, official or employee of the Issuer against any and all losses, costs, charges, expenses, judgments and liabilities created by or arising out of this Agreement, the Indenture, the Remarketing Agreement, the Auction Agreement, the Bond Purchase Agreement, any Broker-Dealer Agreement or the Tax Agreement or otherwise incurred in connection with the issuance of the Bonds. The Issuer may submit to the Company periodic statements, not more frequently than monthly, for its Administrative Expenses and the Company shall make payment to the Issuer of the full amount of each such statement within 30 days after the Company receives such statement.

(f) The Company agrees to pay (i) to the Remarketing Agent the reasonable fees, charges and expenses of such Remarketing Agent and (ii) to the Auction Agent the reasonable

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fees, charges and expenses of such Auction Agent, and the Issuer shall have no obligation or liability with respect to the payment of any such fees, charges or expenses.

(g) In the event the Company shall fail to make any of the payments required by (a) or (b) of this Section 4.2, the payment so in default shall continue as an obligation of the Company until the amount in default shall have been fully paid and the Company will pay interest to the extent permitted by law, on any overdue amount at the rate of interest borne by the Bonds on the date on which such amount became due and payable until paid. In the event that the Company shall fail to make any of the payments required by (c), (d), (e) or
(f) of this Section 4.2, the payment so in default shall continue as an obligation of the Company until the amount in default shall have been fully paid, and the Company agrees to pay the same with interest thereon to the extent permitted by law at a rate 1% above the rate of interest then charged by the Trustee on 90-day commercial loans to its prime commercial borrowers until paid.

SECTION 4.3. NO DEFENSE OR SET-OFF. The obligation of the Company to make the payments pursuant to this Agreement shall be absolute and unconditional without defense or set-off by reason of any default by the Issuer under this Agreement or under any other agreement between the Company and the Issuer or for any other reason, it being the intention of the parties that the payments required hereunder will be paid in full when due without any delay or diminution whatsoever.

SECTION 4.4. PAYMENTS PLEDGED AND ASSIGNED. It is understood and agreed that all payments required to be made by the Company pursuant to Section 4.2 hereof (except payments made to the Trustee pursuant to Section 4.2(c) hereof, to the Remarketing Agent and the Auction Agent pursuant to Section 4.2(f) hereof, to the Issuer pursuant to Section 4.2(e) hereof and to any or all the Issuer and the Trustee and the Remarketing Agent pursuant to Section 4.2(g) hereof) and certain rights of the Issuer hereunder are pledged and assigned by the Indenture. The Company consents to such pledge and assignment. The Issuer hereby directs the Company and the Company hereby agrees to pay or cause to be paid to the Trustee all said amounts except payments to be made to the Remarketing Agent and the Auction Agent pursuant to Section 4.2(f) hereof and payments to be made to the Issuer pursuant to Sections 4.2(e) and (g) hereof. The Project will not constitute any part of the security for the Bonds, except to the extent that the Trustee as holder of G&R Notes has a lien on property under the G&R Indenture.

SECTION 4.5. PAYMENT OF THE BONDS AND OTHER AMOUNTS. The Bonds and interest and premium, if any, thereon shall be payable solely from (i) payments made by the Company to the Trustee under Section 4.2(a) hereof and (ii) other moneys on deposit in the Bond Fund and available therefor.

Payments of principal of, and premium, if any, or interest on, the Bonds with moneys in the Bond Fund constituting proceeds from the sale of the Bonds or earnings on investments made under the provisions of the Indenture shall be credited against the obligation to pay required by Section 4.2(a) hereof.

Whenever any Bonds are redeemable in whole or in part at the option of the Company, the Trustee, on behalf of the Issuer, shall redeem the same upon the request of the Company and

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such redemption (unless conditional) shall be made from payments made by the Company to the Trustee under Section 4.2(a) hereof equal to the redemption price of such Bonds.

Whenever payment or provision therefor has been made in respect of the principal of, or premium, if any, or interest on, all or any portion of the Bonds in accordance with the Indenture (whether at maturity or upon redemption or acceleration or upon provision for payment in accordance with Article VIII of the Indenture), payments shall be deemed paid to the extent such payment or provision therefor has been made and is considered to be a payment of principal of, or premium, if any, or interest on, such Bonds. If such Bonds are thereby deemed paid in full, the Trustee shall notify the Company and the Issuer that such payment requirement has been satisfied. Subject to the foregoing, or unless the Company is entitled to a credit under this Agreement or the Indenture, all payments shall be in the full amount required by Section 4.2(a) hereof.

ARTICLE V

SPECIAL COVENANTS AND AGREEMENTS

SECTION 5.1. COMPANY TO MAINTAIN ITS CORPORATE EXISTENCE; CONDITIONS UNDER WHICH EXCEPTIONS PERMITTED. The Company agrees that during the term of this Agreement, it will maintain its corporate existence and its good standing in the State, will not dissolve or otherwise dispose of all or substantially all of its assets and will not consolidate with or merge into another corporation unless the acquirer of its assets or the corporation with which it shall consolidate or into which it shall merge shall (i) be a corporation organized under the laws of one of the states of the United States of America, (ii) be qualified to do business in the State, and (iii) assume in writing all of the obligations of the Company under this Agreement and the Tax Agreement. Any transfer of all or substantially all of the Company's generation assets shall not be deemed to constitute a "disposition of all or substantially all of the Company's assets" within the meaning of the preceding paragraph. Any such transfer of the Company's generation assets shall not relieve the Company of any of its obligations under this Agreement.

The Company hereby agrees that so long as any of the Bonds are insured by a Bond Insurance Policy issued by the Bond Insurer and the Bond Insurer shall not have failed to comply with its payment obligations under such Policy, in the event of a Reorganization, unless otherwise consented to by the Bond Insurer, the obligations of the Company under, and in respect of, the Bonds, the G&R Notes, the G&R Indenture and the Agreement shall be assumed by, and shall become direct and primary obligations of, a Regulated Utility Company such that at all times the obligor under this Agreement and the obligor on the G&R Notes is a Regulated Utility Company. The Company shall deliver to the Bond Insurer a certificate of the president, any vice president or the treasurer and an opinion of counsel reasonably acceptable to the Bond Insurer stating in each case that such Reorganization complies with the provisions of this paragraph.

The Company need not comply with any of the provisions of this Section 5.1 if, at the time of such merger or consolidation, the Bonds will be defeased as provided in Article VIII of

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the Indenture. The Company need not comply with the provisions of the second paragraph of this Section 5.1 if the Bonds are redeemed as provided in Section 3.01(B)(3) of the Indenture or if the Bond Insurance Policy is terminated as described in Section 3.06 of the Indenture in connection with a purchase of the Bonds by the Company in lieu of their redemption.

SECTION 5.2. ANNUAL STATEMENT. The Company agrees to have an annual audit made by its regular independent certified public accountants and to furnish the Trustee (within 30 days after receipt by the Company) with a balance sheet and statement of income and surplus showing the financial condition of the Company and its consolidated subsidiaries, if any, at the close of each fiscal year and the results of operations of the Company and its consolidated subsidiaries, if any, for each fiscal year, accompanied by a report of said accountants that such statements have been prepared in accordance with generally accepted accounting principles. The Company's obligations under this Section 5.2 may be satisfied by delivering a copy of the Company's Annual Report on Form 10-K to the Trustee within 10 days after it is filed with the Securities and Exchange Commission.

Delivery of such reports, information and documents to the Trustee is for informational purposes only and the Trustee's receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company's compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on officer's certificates).

SECTION 5.3. MAINTENANCE AND REPAIR; INSURANCE; TAXES; DISPOSITION. For so long as the Company shall own the Project, (i) the Company shall maintain or cause to be maintained the Project in good repair and keep it properly insured and shall promptly pay or cause to be paid all costs thereof, and (ii) the Company shall promptly pay or cause to be paid all installments of taxes, installments of special assessments, and all governmental, utility and other charges with respect to the Project, when due. The Company may, at its own expense and in its own name in good faith contest or appeal any such taxes, assessments or other charges, or installments thereof, but shall not permit any such taxes, assessments or other charges, or installments thereof, to remain unpaid if such nonpayment shall subject the Project or any part thereof to loss or forfeiture. The Company, subject to the provisions of Section 3.4 hereof, is not required by this Agreement to operate, or cause to be operated, any portion of the Project after the Company shall deem in its discretion that such continued operation by the Company is not advisable, and in such event the Company may sell, lease or retire all or any such portion of the Project. Subject to the provisions of Section 3.4 hereof, the net proceeds from such sale, lease or other disposition, if any, shall belong to, and may be used for any lawful purpose by, the Company. Upon disposition of the Project in its entirety by the Company in accordance with this Section 5.3, the Company shall be discharged from its obligations to operate, maintain, repair and insure the Project as set forth in this Section 5.3. Any such sale, lease or other disposition shall comply with the requirements of the Tax Agreement. Under any and all circumstances, the Issuer shall have no obligation whatsoever with respect to the operation, maintenance, repair or insurance of the Project.

SECTION 5.4. RECORDATION AND OTHER INSTRUMENTS. The Company shall cause such security agreements, financing statements and all supplements thereto and other instruments as

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may be required from time to time to be kept, to be recorded and filed in such manner and in such places as may be required by law in order to fully preserve, protect and perfect the security of the Owners of the Bonds and the rights of the Trustee, and to perfect the security interest created by the Indenture. The Company agrees to abide by the provisions of Section 5.11 of the Indenture to the extent applicable to the Company.

SECTION 5.5. NO WARRANTY BY THE ISSUER. The Issuer makes no warranty, either express or implied, as to the Project or that it will be suitable for the purposes of the Company or needs of the Company.

SECTION 5.6. AGREEMENT AS TO OWNERSHIP OF THE PROJECT. The Issuer and the Company agree that title to the Project shall not be in the Issuer, and that the Issuer shall have no interest in the Project.

SECTION 5.7. COMPANY TO FURNISH NOTICE OF RATE PERIOD ADJUSTMENTS; LIQUIDITY FACILITY REQUIREMENTS; AUCTION RATE PERIOD PROVISIONS. The Company is hereby granted the option to designate from time to time changes in Rate Periods (and to rescind such changes) in the manner and to the extent set forth in
Section 2.03 of the Indenture. In the event the Company elects to exercise any such option, the Company agrees that it shall cause notices of adjustments of Rate Periods (or rescissions thereof) to be given to the Issuer, the Trustee and the Remarketing Agent in accordance with Section 2.03(a), (b), (c), (d) or (e) of the Indenture, and a copy of each such notice shall also be given at such time to S&P and Moody's.

The Company hereby agrees that, so long as the Bonds are insured by a Bond Insurance Policy issued by the Bond Insurer and notwithstanding the provisions of Section 2.03 of the Indenture, it shall not give notice of its intention to adjust the Rate Period for the Bonds to a Daily Rate Period, a Weekly Rate Period or a Flexible Rate Period until the Company shall provide a liquidity facility reasonably acceptable to the Bond Insurer from a liquidity facility provider reasonably acceptable to the Bond Insurer in accordance with the Bond Insurer's liquidity facility requirements to be effective on the related date of adjustment.

If during any Auction Rate Period (i) consisting of Auction Periods of 35 days or less, the Bonds shall bear interest at the Maximum Interest Rate for a period in excess of 180 days, or (ii) consisting of one Auction Period of 180 days or more, the Bonds shall bear interest at the Maximum Interest Rate for such Period, the Company shall notify the Bond Insurer in writing of such event and agrees to cooperate with the Bond Insurer to take all steps reasonably necessary to adjust the Rate Period on the Bonds as soon as reasonably practicable in accordance with the provisions of the Indenture to the Rate Period which the Remarketing Agent advises the Company and the Bond Insurer will be the lowest interest rate (taking into account all relevant costs) which would enable the Remarketing Agent to sell all the Bonds on the date of such adjustment at a price equal to 100% of the principal amount thereof (the "Lowest Interest Rate Period"). If at such time the Company shall be in default under the Agreement but the Bond Insurer shall not have failed to comply with its payment obligations under the Bond Insurance Policy, the Bond Insurer may, in its discretion, direct the Company to provide notice of the adjustment of the Rate Period on the Bonds to the Lowest Interest Rate Period in accordance with the provisions of Section 2.03 of the Indenture.

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SECTION 5.8. INFORMATION REPORTING, ETC. The Issuer covenants and agrees that, upon the direction of the Company or Bond Counsel, it will mail or cause to be mailed to the Secretary of the Treasury (or his designee as prescribed by regulation, currently the Internal Revenue Service Center, Ogden, Utah) a statement setting forth the information required by Section 149(e) of the Code, which statement shall be in the form of the Information Return for Tax-Exempt Private Activity Bond Issues (Form 8038) of the Internal Revenue Service (or any successor form) and which shall be completed by the Company and Bond Counsel based in part upon information supplied by the Company and Bond Counsel.

SECTION 5.9. LIMITED LIABILITY OF ISSUER. Any obligation or liability of the Issuer created by or arising out of this Agreement or otherwise incurred in connection with the issuance of the Bonds (including without limitation any liability created by or arising out of the representations, warranties or covenants set forth herein or otherwise) shall not impose a debt or pecuniary liability upon the Issuer or the State or any political subdivision thereof, or a charge upon the general credit or taxing powers of any of the foregoing, but shall be payable solely out of the Revenues or other amounts payable by the Company to the Issuer hereunder or otherwise (including without limitation any amounts derived from indemnifications given by the Company).

Neither the issuance of the Bonds nor the delivery of this Agreement shall, directly or indirectly or contingently, obligate the Issuer or the State or any political subdivision thereof to levy any form of taxation therefor or to make any appropriation for their payment. Nothing in the Bonds or in the Indenture or this Agreement or the proceedings of the Issuer authorizing the Bonds or in the Act or in any other related document shall be construed to authorize the Issuer to create a debt of the Issuer or the State or any political subdivision thereof within the meaning of any constitutional or statutory provision of the State. The principal of, and premium, if any, and interest on, the Bonds shall be payable solely from the funds pledged for their payment in accordance with the Indenture and available therefor under this Agreement. Neither the State nor any political subdivision thereof shall in any event be liable for the payment of the principal of, premium, if any, or interest on, the Bonds or for the performance of any pledge, obligation or agreement of any kind whatsoever which may be undertaken by the Issuer. No breach of any such pledge, obligation or agreement may impose any pecuniary liability upon the Issuer or the State or any political subdivision thereof, or any charge upon the general credit or against the taxing power of Coconino County, Arizona or the State or any political subdivision thereof. The Issuer has no taxing power.

SECTION 5.10. INSPECTION OF PROJECT. The Company agrees that the Issuer and the Trustee and their duly authorized representatives shall have the right at all reasonable times to enter upon and examine and inspect the Project property and shall also be permitted, at all reasonable times, to examine the books and records of the Company insofar as they relate to the Project.

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ARTICLE VI

EVENTS OF DEFAULT AND REMEDIES

SECTION 6.1. EVENTS OF DEFAULT DEFINED. The following shall be "events of default" under this Agreement and the terms "event of default" or "default" shall mean, whenever they are used in this Agreement, any one or more of the following events:

(a) Failure by the Company to pay when due any amounts required to be paid under Section 4.2(a) hereof, which failure results in an event of default under subparagraph (a) or (b) of Section 9.01 of the Indenture; or

(b) Failure by the Company to pay or cause to be paid any payment required to be paid under Section 4.2(b) hereof, which failure results in an event of default under subparagraph (c) of Section 9.01 of the Indenture; or

(c) Failure by the Company to observe and perform any covenant, condition or agreement on its part to be observed or performed in this Agreement, other than as referred to in (a) and (b) above, for a period of 90 days after written notice, specifying such failure and requesting that it be remedied and stating that such notice is a "Notice of Default" hereunder, given to the Company by the Trustee or to the Company and the Trustee by the Issuer, unless the Issuer and the Trustee shall agree in writing to an extension of such time prior to its expiration; provided, however, if the failure stated in the notice cannot be corrected within the applicable period, the Issuer and the Trustee will not unreasonably withhold their consent to an extension of such time if corrective action is instituted within the applicable period and diligently pursued until the failure is corrected and such corrective action or diligent pursuit is evidenced to the Trustee by a certificate of an Authorized Company Representative; or

(d) A proceeding or case shall be commenced, without the application or consent of the Company, in any court of competent jurisdiction seeking
(i) liquidation, reorganization, dissolution, winding-up or composition or adjustment of debts, (ii) the appointment of a trustee, receiver, custodian, liquidator or the like of the Company or of all or any substantial part of its assets, or (iii) similar relief under any law relating to bankruptcy, insolvency, reorganization, winding-up or composition or adjustment of debts, and such proceeding or cause shall continue undismissed, or an order, judgment, or decree approving or ordering any of the foregoing shall be entered and shall continue in effect for a period of 90 days; or an order for relief against the Company shall be entered against the Company in an involuntary case under the Bankruptcy Code (as now or hereafter in effect) or other applicable law; or

(e) The Company shall admit in writing its inability to pay its debts generally as they become due or shall file a petition in voluntary bankruptcy or shall make any general assignment for the benefit of its creditors, or shall consent to the appointment of a receiver or trustee of all or substantially all of its property, or shall commence a voluntary case under the Bankruptcy Code (as now or hereafter in effect), or shall file in any court

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of competent jurisdiction a petition seeking to take advantage of any other law relating to bankruptcy, insolvency, reorganization, winding-up or composition or adjustment of debts, or shall fail to controvert in a timely or appropriate manner, or acquiesce in writing to, any petition filed against it in an involuntary case under such Bankruptcy Code or other applicable law; or

(f) Dissolution or liquidation of the Company; provided that the term "dissolution or liquidation of the Company" shall not be construed to include the cessation of the corporate existence of the Company resulting either from a merger or consolidation of the Company into or with another corporation or a dissolution or liquidation of the Company following a transfer of all or substantially all of its assets as an entirety, under the conditions permitting such actions contained in Section 5.1 hereof; or

(g) The occurrence of an "event of default" under the Indenture.

The foregoing provisions of Section 6.1(c) are subject to the following limitations: If by reason of Force Majeure the Company is unable in whole or in part to carry out its agreements on its part herein contained, other than the obligations on the part of the Company contained in Article IV and Sections 5.3 and 6.4 hereof, the Company shall not be deemed in default during the continuance of such inability. The Company agrees, however, to remedy with all reasonable dispatch the cause or causes preventing the Company from carrying out its agreements; provided that the settlement of strikes, lockouts and other industrial disturbances shall be entirely within the discretion of the Company and the Company shall not be required to make settlement of strikes, lockouts and other industrial disturbances by acceding to the demands of the opposing party or parties when such course is in the sole judgment of the Company unfavorable to the Company.

SECTION 6.2. REMEDIES ON DEFAULT. Whenever any event of default referred to in Section 6.1 hereof shall have happened and be continuing, the Trustee, as assignee of the Issuer:

(a) shall, by notice in writing to the Company, declare the unpaid indebtedness under Section 4.2(a) hereof to be due and payable immediately, if concurrently with or prior to such notice the unpaid principal amount of the Bonds shall have been declared to be due and payable, and upon any such declaration the same (being an amount sufficient, together with other moneys available therefor in the Bond Fund, to pay the unpaid principal of, premium, if any, and interest accrued on, the Bonds) shall become and shall be immediately due and payable as liquidated damages; and

(b) may take whatever action at law or in equity as may appear necessary or desirable to collect the payments and other amounts then due and thereafter to become due hereunder or to enforce performance and observance of any obligation, agreement or covenant of the Company under this Agreement.

Any amounts collected pursuant to action taken under this Section 6.2 shall be paid into the Bond Fund (unless otherwise provided in this Agreement) and applied in accordance with the

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provisions of the Indenture. No action taken pursuant to this Section 6.2 shall relieve the Company from the Company's obligations pursuant to Section 4.2 hereof.

No recourse shall be had for any claim based on this Agreement against any officer, director or stockholder, past, present or future, of the Company as such, either directly or through the Company, under any constitutional provision, statute or rule of law, or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise.

Nothing herein contained shall be construed to prevent the Issuer from enforcing directly any of its rights under Sections 4.2(e), 4.2(g), 5.3 and 6.4 hereof.

The Company shall promptly notify the Issuer of any action taken by the Company under the grant of authority from the Issuer under the last paragraph of
Section 9.01 of the Indenture.

SECTION 6.3. NO REMEDY EXCLUSIVE. No remedy herein conferred upon or reserved to the Issuer is intended to be exclusive of any other available remedy or remedies, but each and every such remedy shall be cumulative and shall be in addition to every other remedy given under this Agreement or now or hereafter existing at law or in equity or by statute. No delay or omission to exercise any right or power accruing upon any default shall impair any such right or power or shall be construed to be a waiver thereof, but any such right and power may be exercised from time to time and as often as may be deemed expedient. In order to entitle the Issuer or the Trustee to exercise any remedy reserved to it in this Article, it shall not be necessary to give any notice, other than such notice as may be herein expressly required. Subject to the provisions of the Indenture and hereof, such rights and remedies as are given the Issuer hereunder shall also extend to the Trustee. The Owners of the Bonds, subject to the provisions of the Indenture, shall be entitled to the benefit of all covenants and agreements herein contained.

SECTION 6.4. AGREEMENT TO PAY FEES AND EXPENSES OF COUNSEL. In the event the Company should default under any of the provisions of this Agreement and the Issuer or the Trustee should employ Counsel or incur other expenses for the collection of the indebtedness hereunder or the enforcement of performance or observance of any obligation or agreement on the part of the Company herein contained, the Company agrees that it will on written demand therefor pay to the Trustee or the Issuer (or to the Counsel for either of such parties if directed by such party), the reasonable fees and expenses of such Counsel and such other expenses so incurred by or on behalf of the Issuer or the Trustee.

SECTION 6.5. NO ADDITIONAL WAIVER IMPLIED BY ONE WAIVER; CONSENTS TO WAIVERS. In the event any agreement contained in this Agreement should be breached by either party and thereafter waived by the other party, such waiver shall be limited to the particular breach so waived and shall not be deemed to waive any other breach hereunder. No waiver shall be effective unless in writing and signed by the party making the waiver. The Issuer shall have no power to waive any default hereunder by the Company without the consent of the Trustee to such waiver. The Trustee shall have the power to waive any default by the Company hereunder, except a default under Section 3.4, 4.2(e), 4.2(g), 5.3 or 6.4 hereof, in so far as it pertains to the Issuer, without the prior written concurrence of the Issuer. Notwithstanding the foregoing, if,

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after the acceleration of the maturity of the outstanding Bonds by the Trustee pursuant to Section 9.02 of the Indenture, (i) all arrears of principal of and interest on the outstanding Bonds and interest on overdue principal and (to the extent permitted by law) on overdue installments of interest at the rate of interest borne by the Bonds on the date on which such principal or interest became due and payable and the premium, if any, on all Bonds then Outstanding which have become due and payable otherwise than by acceleration, and all other sums payable under the Indenture, except the principal of and the interest on such Bonds which by such acceleration shall have become due and payable, shall have been paid, (ii) all other things shall have been performed in respect of which there was a default, (iii) there shall have been paid the reasonable fees and expenses of the Trustee and of the Owners of such Bonds, including reasonable attorneys' fees paid or incurred and (iv) such event of default under the Indenture shall be waived in accordance with Section 9.09 of the Indenture with the consequence that such acceleration under Section 9.02 of the Indenture is rescinded, then the Company's default hereunder shall be deemed to have been waived and its consequences rescinded and no further action or consent by the Trustee or the Issuer shall be required; provided that there has been furnished an opinion of Bond Counsel to the effect that such waiver will not adversely affect the exemption from federal income taxes of interest on the Bonds.

ARTICLE VII

OPTIONS AND OBLIGATIONS OF COMPANY;
PREPAYMENTS; REDEMPTION OF BONDS

SECTION 7.1. OPTION TO PREPAY. The Company shall have, and is hereby granted, the option to prepay the payments due hereunder in whole or in part at any time or from time to time (a) to provide for the redemption of Bonds pursuant to the provisions of Section 3.01(A) of the Indenture or (b) to provide for the defeasance of the Bonds pursuant to Article VIII of the Indenture. In the event the Company elects to provide for the redemption of Bonds as permitted by this Section, the Company shall notify and instruct the Trustee in accordance with Section 7.3 hereof to redeem all or any portion of the Bonds in advance of maturity. If the Company so elects, any redemption of Bonds pursuant to Section 3.01(A) of the Indenture may be made conditional.

SECTION 7.2. OBLIGATION TO PREPAY. The Company covenants and agrees that if all or any part of the Bonds are unconditionally called for redemption in accordance with the Indenture or become subject to mandatory redemption (except as otherwise provided in Section 3.02 of the Indenture), it will prepay the indebtedness hereunder in whole or in part in an amount sufficient to redeem such Bonds on the date fixed for the redemption of such Bonds.

SECTION 7.3. NOTICE OF PREPAYMENT. Upon the exercise of the option granted to the Company in Section 7.1 hereof, or upon the Company having knowledge of the occurrence of any event requiring mandatory redemption of the Bonds in accordance with Section 3.01(B) of the Indenture, the Company shall give written notice to the Issuer, the Remarketing Agent, the Auction Agent and the Trustee. The notice shall provide for the date of the application of the prepayment made by the Company hereunder to the retirement of the Bonds in whole or in part

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pursuant to call for redemption and shall be given by the Company not less than five Business Days prior to the date notice of such redemption must be given by the Trustee to the Bondholders as provided in Section 3.02 of the Indenture or such later date as is acceptable to the Trustee and the Issuer.

ARTICLE VIII

MISCELLANEOUS

SECTION 8.1. NOTICES. Except as otherwise provided herein, all notices, certificates or other communications hereunder shall be sufficiently given if in writing and shall be deemed given when mailed by first class mail, postage prepaid, or by qualified overnight courier service, courier charges prepaid, or by facsimile (receipt of which is orally confirmed) addressed as follows: if to the Issuer, c/o Mangum, Wall, Stoops & Warden, P.L.L.C., 222 East Birch Avenue, Flagstaff, Arizona 86001, or to telecopy number (928) 773-1312, Attention:
Franklin Hoover, Esq.; if to the Company, at P.O. Box 230, 6226 West Sahara Avenue, Las Vegas, Nevada 89146, or to telecopy number (702) 227-2250, Attention: Treasurer; if to the Trustee, at U.S. Bank Center, 101 North First Avenue, Suite 1600, Phoenix, Arizona 85003, or to telecopy number (602) 257-5433, Attention: Corporate Trust Services; if to the Remarketing Agent, at the address set forth in the Remarketing Agreement, if any; and if to the Auction Agent, at the address set forth in the Auction Agreement, if any. In case by reason of the suspension of regular mail service, it shall be impracticable to give notice by first class mail of any event to the Issuer, to the Company, to the Remarketing Agent, to the Auction Agent when such notice is required to be given pursuant to any provisions of this Agreement, then any manner of giving such notice as shall be satisfactory to the Trustee shall be deemed to be sufficient giving of such notice. The Issuer, the Company, the Trustee, the Remarketing Agent and the Auction Agent may, by notice pursuant to this Section 8.1, designate any different addresses to which subsequent notices, certificates or other communications shall be sent.

SECTION 8.2. ASSIGNMENTS. This Agreement may not be assigned by either party without consent of the other and the Trustee, except that the Issuer shall assign to the Trustee its rights under this Agreement (except under Sections 4.2(e), 4.2(g), 5.3, and 6.4 hereof) as provided by Section 4.4 hereof, and the Company may assign its rights under this Agreement to any transferee or any surviving or resulting corporation as provided by Section 5.1 hereof.

SECTION 8.3. SEVERABILITY. If any provision of this Agreement shall be held or deemed to be or shall, in fact, be illegal, inoperative or unenforceable, the same shall not affect any other provision or provisions herein contained or render the same invalid, inoperative, or unenforceable to any extent whatever.

SECTION 8.4. EXECUTION OF COUNTERPARTS. This Agreement may be simultaneously executed in several counterparts, each of which shall be an original and all of which shall constitute but one and the same instrument.

-19-

SECTION 8.5. AMOUNTS REMAINING IN BOND FUND. It is agreed by the parties hereto that after payment in full of (i) the Bonds (or provision for payment thereof having been made in accordance with the provisions of the Indenture),
(ii) the fees, charges and expenses of the Trustee in accordance with the Indenture, (iii) the Administrative Expenses, (iv) the fees and expenses of the Remarketing Agent, the Auction Agent and the Issuer and (v) all other amounts required to be paid under this Agreement and the Indenture, any amounts remaining in the Bond Fund shall belong to and be paid to the Company by the Trustee.

SECTION 8.6. AMENDMENTS, CHANGES AND MODIFICATIONS. This Agreement may be amended, changed, modified, altered or terminated only by written instrument executed by the Issuer and the Company, and only if the written consent of the Trustee thereto is obtained, and only in accordance with the provisions of Article XII of the Indenture.

SECTION 8.7. GOVERNING LAW. This Agreement shall be governed exclusively by and construed in accordance with the applicable laws of the State.

SECTION 8.8. AUTHORIZED ISSUER AND COMPANY REPRESENTATIVES. Whenever under the provisions of this Agreement the approval of the Issuer or the Company is required to take some action at the request of the other, such approval of such request shall be given for the Issuer by the Authorized Issuer Representative and for the Company by the Authorized Company Representative, and the other party hereto and the Trustee shall be authorized to act on any such approval or request and neither party hereto shall have any complaint against the other or against the Trustee as a result of any such action taken.

SECTION 8.9. TERM OF THE AGREEMENT. This Agreement shall be in full force and effect from its date to and including such date as all of the Bonds issued under the Indenture shall have been fully paid or retired (or provision for such payment shall have been made as provided in the Indenture), provided that all representations and certifications by the Company as to all matters affecting the tax-exempt status of the Bonds and the covenants of the Company in Sections 4.2(c), 4.2(d), 4.2(e), 4.2(f) and 4.2(g) hereof shall survive the termination of this Agreement.

SECTION 8.10. CANCELLATION AT EXPIRATION OF TERM. At the acceleration, termination or expiration of the term of this Agreement and following full payment of the Bonds or provision for payment thereof and of all other fees and charges having been made in accordance with the provisions of this Agreement and the Indenture, the Issuer shall deliver to the Company any documents and take or cause the Trustee to take such actions as may be necessary to effectuate the cancellation and evidence the termination of this Agreement.

SECTION 8.11. BOND INSURANCE. The payment of the principal of and interest on the Bonds when due is to be insured under, and to the extent provided in, the Bond Insurance Policy, including the endorsements thereto, to be issued by the Bond Insurer, and the Issuer and the Company agree to be bound by the provisions contained in Appendix C to the Indenture and the Company agrees to be bound by the provisions contained in the Insurance Agreement. In the event of any conflict between the provisions of Appendix C to the Indenture and the provisions of this Agreement, the provisions of Appendix C shall govern and control.

-20-

All references in this Agreement to the Bond Insurer shall only apply so long as a Bond Insurance Policy issued by the Bond Insurer is in effect for any of the Bonds (and the Bond Insurer has not failed to comply with its payment obligations under the Bond Insurance Policy).

SECTION 8.12. NOTICE REGARDING CANCELLATION OF CONTRACTS. As required by the provisions of Section 38-511, Arizona Revised Statutes, as amended, notice is hereby given that political subdivisions of the State of Arizona or any of their departments or agencies may, within three (3) years of its execution, cancel any contract, without penalty or further obligation, made by the political subdivisions or any of their departments or agencies on or after September 30, 1988, if any person significantly involved in initiating, negotiating, securing, drafting or creating the contract on behalf of the political subdivisions or any of their departments or agencies is, at any time while the contract or any extension of the contract is in effect, an employee or agent of any other party to the contract in any capacity or a consultant to any other party of the contract with respect to the subject matter of the contract. The cancellation shall be effective when written notice from the chief executive officer or governing body of the political subdivision is received by all other parties to the contract unless the notice specifies a later time.

The Company covenants and agrees not to employ as an employee, agent or, with respect to the subject matter of this Agreement, a consultant, any person significantly involved in initiating, negotiating, securing, drafting or creating this Agreement on behalf of the Issuer within three (3) years from the execution hereof, unless a waiver is provided by the Issuer.

-21-

IN WITNESS WHEREOF, the Issuer and the Company have caused this Agreement to be executed in their respective corporate names and their respective corporate seals to be hereunto affixed and attested by their duly authorized officers, all as of the date first above written.

COCONINO COUNTY, ARIZONA POLLUTION
CONTROL CORPORATION

By

President Board of Directors

(SEAL)

Attest:


Secretary

NEVADA POWER COMPANY

By
Treasurer

(SEAL)

Attest:


Secretary

-22-

 

Exhibit 31.1
QUARTERLY CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER REQUIRED BY
SECTION 302(A) OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC RESOURCES
(“Registrant”)
I, Walter M. Higgins III, certify that:
  1.   I have reviewed the quarterly report on Form 10-Q of Sierra Pacific Resources;
 
  2.   Based on my knowledge, the quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by the quarterly report;
 
  3.   Based on my knowledge, the financial statements, and other financial information included in the quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in the quarterly report;
 
  4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)), and we have:
  (a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including their consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which the quarterly report is being prepared;
 
  (b)   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
 
  (c)   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in the quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by the quarterly report based on such evaluation; and
 
  (d)   Disclosed in the quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
  5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors:
  (a)   All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
 
  (b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
November 2, 2006
         
     
  /s/ Walter M. Higgins, III    
  Walter M. Higgins III   
  Chief Executive Officer
Sierra Pacific Resources 
 

 

 

         
Exhibit 31.2
QUARTERLY CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER REQUIRED BY
SECTION 302(A) OF THE SARBANES-OXLEY ACT OF 2002
NEVADA POWER COMPANY
(“Registrant”)
I, Walter M. Higgins III, certify that:
  1.   I have reviewed the quarterly report on Form 10-Q of Nevada Power Company;
 
  2.   Based on my knowledge, the quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by the quarterly report;
 
  3.   Based on my knowledge, the financial statements, and other financial information included in the quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in the quarterly report;
 
  4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant, and we have:
  (a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including their consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which the quarterly report is being prepared;
 
  (b)   [Paragraph omitted pursuant to SEC Release Nos. 33-8238 and 34-47986];
 
  (c)   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in the quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by the quarterly report based on such evaluation; and
 
  (d)   Disclosed in the quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
  5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors:
  (a)   All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
 
  (b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
November 2, 2006
         
     
  /s/ Walter M. Higgins, III    
  Walter M. Higgins III   
  Chief Executive Officer
Nevada Power Company 
 

 

 

         
Exhibit 31.3
QUARTERLY CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER REQUIRED BY
SECTION 302(A) OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC POWER COMPANY
(“Registrant”)
I, Walter M. Higgins III, certify that:
  1.   I have reviewed the quarterly report on Form 10-Q of Sierra Pacific Power Company;
 
  2.   Based on my knowledge, the quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by the quarterly report;
 
  3.   Based on my knowledge, the financial statements, and other financial information included in the quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in the quarterly report;
 
  4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant, and we have:
  (a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including their consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which the quarterly report is being prepared;
 
  (b)   [Paragraph omitted pursuant to SEC Release Nos. 33-8238 and 34-47986];
 
  (c)   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in the quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by the quarterly report based on such evaluation; and
 
  (d)   Disclosed in the quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
  5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors:
  (a)   All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
 
  (b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
November 2, 2006
         
     
  /s/ Walter M. Higgins, III    
  Walter M. Higgins III   
  Chief Executive Officer
Sierra Pacific Power Company 
 

 

 

         
Exhibit 31.4
QUARTERLY CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER REQUIRED BY
SECTION 302(A) OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC RESOURCES
(“Registrant”)
I, Michael W. Yackira, certify that:
  1.   I have reviewed the quarterly report on Form 10-Q of Sierra Pacific Resources;
 
  2.   Based on my knowledge, the quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by the quarterly report;
 
  3.   Based on my knowledge, the financial statements, and other financial information included in the quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in the quarterly report;
 
  4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)), and we have:
  (a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including their consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which the quarterly report is being prepared;
 
  (b)   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
 
  (c)   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in the quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by the quarterly report based on such evaluation; and
 
  (d)   Disclosed in the quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
  5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors:
  (a)   All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
 
  (b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
November 2, 2006
         
     
  /s/ Michael W. Yackira    
  Michael W. Yackira   
  Chief Financial Officer
Sierra Pacific Resources 
 

 

 

         
Exhibit 31.5
QUARTERLY CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER REQUIRED BY
SECTION 302(A) OF THE SARBANES-OXLEY ACT OF 2002
NEVADA POWER COMPANY
(“Registrant”)
I, Michael W. Yackira, certify that:
  1.   I have reviewed the quarterly report on Form 10-Q of Nevada Power Company;
 
  2.   Based on my knowledge, the quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by the quarterly report;
 
  3.   Based on my knowledge, the financial statements, and other financial information included in the quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in the quarterly report;
 
  4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant, and we have:
  (a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including their consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which the quarterly report is being prepared;
 
  (b)   [Paragraph omitted pursuant to SEC Release Nos. 33-8238 and 34-47986];
 
  (c)   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in the quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by the quarterly report based on such evaluation; and
 
  (d)   Disclosed in the quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
  5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors:
  (a)   All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
 
  (b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
November 2, 2006
         
     
  /s/ Michael W. Yackira    
  Michael W. Yackira   
  Chief Financial Officer
Nevada Power Company 
 

 

 

         
Exhibit 31.6
QUARTERLY CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER REQUIRED BY
SECTION 302(A) OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC POWER COMPANY
(“Registrant”)
I, Michael W. Yackira, certify that:
  1.   I have reviewed the quarterly report on Form 10-Q of Sierra Pacific Power Company;
 
  2.   Based on my knowledge, the quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by the quarterly report;
 
  3.   Based on my knowledge, the financial statements, and other financial information included in the quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in the quarterly report;
 
  4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant, and we have:
  (a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including their consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which the quarterly report is being prepared;
 
  (b)   [Paragraph omitted pursuant to SEC Release Nos. 33-8238 and 34-47986];
 
  (c)   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in the quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by the quarterly report based on such evaluation; and
 
  (d)   Disclosed in the quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
  5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors:
  (a)   All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
 
  (b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
November 2, 2006
         
     
  /s/ Michael W. Yackira    
  Michael W. Yackira   
  Chief Financial Officer
Sierra Pacific Power Company 
 

 

 

         
Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC RESOURCES
(“Registrant”)
In connection with the quarterly report of Sierra Pacific Resources on Form 10-Q for the fiscal quarter ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof, I, Walter M. Higgins, III, Chief Executive Officer of registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
  1.   the quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
 
  2.   the information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
         
     
/s/ Walter M. Higgins, III      
Walter M. Higgins, III     
Chief Executive Officer
Sierra Pacific Resources
November 2, 2006 
   
 
This Certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent the registrant specifically incorporates it by reference.
A signed original of this written statement required by Section 906 has been provided to the registrant and will be retained by the registrant and furnished to the Securities and Exchange Commission or its staff upon request.

 

 

Exhibit 32.2
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
NEVADA POWER COMPANY
(“Registrant”)
In connection with the quarterly report of Nevada Power Company on Form 10-Q for the fiscal quarter ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof, I, Walter M. Higgins, III, Chief Executive Officer of registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
  1.   the quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
 
  2.   the information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
         
     
/s/ Walter M. Higgins, III      
Walter M. Higgins, III     
Chief Executive Officer
Nevada Power Company
November 2, 2006 
   
 
This Certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent the registrant specifically incorporates it by reference.
A signed original of this written statement required by Section 906 has been provided to the registrant and will be retained by the registrant and furnished to the Securities and Exchange Commission or its staff upon request.

 

 

Exhibit 32.3
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC POWER COMPANY
(“Registrant”)
In connection with the quarterly report of Sierra Pacific Power Company on Form 10-Q for the fiscal quarter ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof, I, Walter M. Higgins, III, Chief Executive Officer of registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
  1.   the quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
 
  2.   the information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
         
     
/s/ Walter M. Higgins, III      
Walter M. Higgins, III     
Chief Executive Officer
Sierra Pacific Power Company
November 2, 2006 
   
 
This Certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent the registrant specifically incorporates it by reference.
A signed original of this written statement required by Section 906 has been provided to the registrant and will be retained by the registrant and furnished to the Securities and Exchange Commission or its staff upon request.

 

 

Exhibit 32.4
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC RESOURCES
(“Registrant”)
In connection with the quarterly report of Sierra Pacific Resources on Form 10-Q for the fiscal quarter ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof, I, Michael W. Yackira, Chief Financial Officer of registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
  1.   the quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
 
  2.   the information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
         
     
/s/ Michael W. Yackira      
Michael W. Yackira     
Chief Financial Officer
Sierra Pacific Resources
November 2, 2006 
   
 
This Certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent the registrant specifically incorporates it by reference.
A signed original of this written statement required by Section 906 has been provided to the registrant and will be retained by the registrant and furnished to the Securities and Exchange Commission or its staff upon request.

 

 

Exhibit 32.5
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
NEVADA POWER COMPANY
(“Registrant”)
In connection with the quarterly report of Nevada Power Company on Form 10-Q for the fiscal quarter ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof, I, Michael W. Yackira, Chief Financial Officer of registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
  1.   the quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
 
  2.   the information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
         
     
/s/ Michael W. Yackira      
Michael W. Yackira     
Chief Financial Officer
Nevada Power Company
November 2, 2006 
   
 
This Certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent the registrant specifically incorporates it by reference.
A signed original of this written statement required by Section 906 has been provided to the registrant and will be retained by the registrant and furnished to the Securities and Exchange Commission or its staff upon request.

 

 

Exhibit 32.6
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
SIERRA PACIFIC POWER COMPANY
(“Registrant”)
In connection with the quarterly report of Sierra Pacific Power Company on Form 10-Q for the fiscal quarter ended September 30, 2006 as filed with the Securities and Exchange Commission on the date hereof, I, Michael W. Yackira, Chief Financial Officer of registrant, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
  1.   the quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
 
  2.   the information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the registrant.
         
     
/s/ Michael W. Yackira      
Michael W. Yackira     
Chief Financial Officer
Sierra Pacific Power Company
November 2, 2006 
   
 
This Certification accompanies this Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the registrant for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent the registrant specifically incorporates it by reference.
A signed original of this written statement required by Section 906 has been provided to the registrant and will be retained by the registrant and furnished to the Securities and Exchange Commission or its staff upon request.