SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K


CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): April 15, 2003

IDAHO POWER COMPANY

(Exact name of registrant as specified in its charter)

         Idaho                         1-3198                    82-0130980

(State or other                      (Commission             (I.R.S. Employer
jurisdiction of incorporation       File Number)            Identification No.)

                             1221 West Idaho Street
                             Boise, Idaho 83702-5627

(Address of principal executive
offices) (Zip Code) Registrant's telephone
number, including area code (208) 388-2200


Former name or address, if changed since last report.


Idaho Power Company

Form 8-K

Item 7. Financial Statements and Exhibits.


(c) Exhibits

1 - Selling Agency Agreement, dated April 15, 2003

4 - Thirty-seventh Supplemental Indenture to Mortgage and Deed of Trust, dated as of April 1, 2003

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

IDAHO POWER COMPANY

                                        By:/s/ Darrel T. Anderson
                                           ----------------------
                                        Darrel T. Anderson
                                        Vice President, Chief Financial Officer
                                        and Treasurer


Dated: April 15, 2003


IDAHO POWER COMPANY

First Mortgage Bonds,
Secured Medium-Term Notes, Series E
Due From Nine Months to Thirty Years
From Date of Issue

Selling Agency Agreement

April 15, 2003

Banc of America Securities LLC
Bank of America Corporate Center
100 North Tryon Street
Charlotte, NC 28255

Banc One Capital Markets, Inc.
One Bank One Plaza
Suite IL1-0595
Chicago, IL 60670

McDonald Investments Inc.
800 Superior Avenue
Cleveland, OH 44114

U.S. Bancorp Piper Jaffray Inc.
111 SW Fifth Avenue, Suite 1900
Portland, OR 97204

Wachovia Securities, Inc.
301 South College
Charlotte, NC 28288

Wells Fargo Brokerage Services, LLC
608 Second Avenue South, Suite 900
MAC N9303-097
Minneapolis, MN 55479

Ladies and Gentlemen:

Idaho Power Company, an Idaho corporation (the "Company"), confirms its agreement with each of you with respect to the issue and sale by the Company of up to $250,000,000 aggregate principal amount of its First Mortgage Bonds, Secured Medium-Term Notes, Series E, Due from Nine Months to Thirty Years from Date of Issue (the "Notes"). The Notes will be issued under the Indenture of Mortgage and Deed of Trust, dated as of October 1, 1937, between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), (the "Trustee") and R.G. Page (Stanley Burg, successor individual trustee), as trustees, as supplemented and amended by all indentures supplemental thereto


including the Thirty-seventh Supplemental Indenture relating to the Notes dated as of April 1, 2003 (the "Supplemental Indenture"). The Indenture of Mortgage and Deed of Trust as it has been and may be supplemented as of any specified date is hereinafter referred to as the "Indenture". Unless otherwise specifically provided for and set forth in a Pricing Supplement (as defined below), the Notes will be issued in minimum denominations of $1,000 and in denominations exceeding such amount by integral multiples of $1,000, will be issued only in fully registered form and will have the interest rates, maturities and, if applicable, other terms set forth in such Pricing Supplement. The Notes will be issued, and the terms thereof established, in accordance with the Indenture and the Medium-Term Notes Administrative Procedures attached hereto as Exhibit A, as they may be amended from time to time (the "Procedures") (unless a Terms Agreement (as defined in Section 2(b)) modifies or otherwise supersedes such Procedures with respect to Notes issued pursuant to such Terms Agreement). The Procedures may be amended only by written agreement of the Company and you after notice to the Trustee. For the purposes of this Agreement, the term "Agent" shall refer to any of you acting solely in the capacity as agent for the Company pursuant to Section 2(a) and not as principal (collectively, the "Agents"), the term "Purchaser" shall refer to one of you acting solely as principal pursuant to Section 2(b) and not as agent, and the term "you" shall refer to you collectively whether at any time any of you is acting in both such capacities or in either such capacity. In acting under this Agreement, in whatever capacity, each of you is acting individually and not jointly.

1. Representations and Warranties. The Company represents and warrants to, and agrees with, you as set forth below in this Section 1. Certain terms used in this Section 1 are defined in paragraph (e) hereof.

(a) The Company meets the requirements for use of Form S-3 under the Securities Act of 1933, as amended (the "Act") and has filed with the Securities and Exchange Commission (the "Commission") a registration statement on such Form (File Number 333-103812), including a basic prospectus, which has become effective, for the registration under the Act of $300,000,000 aggregate amount of its first mortgage bonds, serial preferred stock, without par value, and debt securities (the "Securities"), including the Notes. Such registration statement, as amended at the date of this Agreement, meets the requirements set forth in Rule 415(a)(1)(ix) or (x) under the Act and complies in all other material respects with said Rule. The Company has filed or will file with the Commission pursuant to the applicable paragraph of Rule 424(b) under the Act a supplement to the form of prospectus included in such registration statement relating to the Notes and the plan of distribution thereof (the "Prospectus Supplement"). In connection with the sale of Notes the Company proposes to file with the Commission pursuant to the applicable paragraph of Rule 424(b) under the Act further supplements to the Prospectus Supplement (each a "Pricing Supplement") specifying the interest rates, maturity dates and, if appropriate, other similar terms of the Notes sold pursuant hereto or the offering thereof.

(b) (i) As of the Execution Time and on the Effective Date, the Registration Statement complied and (ii) on each date any supplement to the Prospectus (as defined herein) relating to the Notes is filed with the Commission, as of the date of a Terms Agreement and at the date of delivery by the Company of any Notes sold hereunder (a "Closing Date"), the Prospectus, as supplemented as of any such time, and the Indenture will comply in all material respects with the applicable requirements of the Act, the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act") and the Securities Exchange Act of 1934, as amended (the

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"Exchange Act") and the respective rules thereunder; (iii) as of the Execution Time and on the Effective Date, the Registration Statement, as amended as of either such time, did not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading; (iv) on each date any supplement to the Prospectus relating to the Notes is filed with the Commission, as of the date of a Terms Agreement and on any Closing Date, the Prospectus, as supplemented as of any such time, will not contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; and (v) on any Closing Date no stop order suspending the effectiveness of the Registration Statement shall be in effect nor shall there have been instituted or threatened any proceeding for such purpose; provided, however, that the Company makes no representations or warranties as to (i) that part of the Registration Statement which shall constitute the Statements of Eligibility of the Trustees (Forms T-1 and T-2), or amendments thereto, under the Trust Indenture Act or (ii) the information contained in or omitted from the Registration Statement or the Prospectus (or any supplement thereto) in reliance upon and in conformity with information, if any, furnished in writing to the Company by any of you specifically for inclusion in the Registration Statement or the Prospectus (or any supplement thereto).

(c) As of the time any Notes are issued and sold hereunder, the Indenture will constitute a legal, valid and binding instrument enforceable against the Company in accordance with its terms and such Notes will have been duly authorized, executed, authenticated and, when paid for by the purchasers thereof, will constitute legal, valid and binding obligations of the Company entitled to the benefits of the Indenture.

(d) As of the time any Notes are issued and sold, the issue and sale of the Notes and the compliance by the Company with all of the provisions of the Notes, the Indenture, and this Agreement, and the consummation of the transactions herein and therein contemplated will not conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company is a party or by which the Company is bound or to which any of the property or assets of the Company is subject, nor will such action result in any violation of the provisions of the Restated Articles of Incorporation or By-laws of the Company or any statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over the Company or any of its properties; and no consent, approval, authorization, order, registration or qualification of or with any such court or governmental agency or body is required for the issue and sale of the Notes or the consummation by the Company of the transactions contemplated by this Agreement or the Indenture, except such orders as have been issued by the Idaho Public Utilities Commission (which grants authority to sell the Notes through March 17, 2005), the Public Utility Commission of Oregon and the Public Service Commission of Wyoming and are in full force and effect, and such as have been, or will have been prior to any Closing Date, obtained under the Act and the Trust Indenture Act and such consents, approvals, authorizations, registrations or qualifications as may be required under state securities or Blue Sky laws in connection with the sale and distribution of the Notes by the Agents.

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(e) As of the time any Notes are issued and sold hereunder, immediately after giving effect to the issuance and sale of any Notes and the retirement of any First Mortgage Bonds of the Company (including without limitation the Notes as well as any other First Mortgage Bonds previously issued by the Company under the Indenture) which are concurrently being retired, the aggregate principal amount of the First Mortgage Bonds of the Company (including without limitation the Notes as well as any other First Mortgage Bonds previously issued by the Company under the Indenture) does not exceed $900,000,000, or such other maximum amount as the Company may establish pursuant to Sections 22 and 121 of the Indenture, as supplemented and amended by all indentures supplemental thereto as of the date thereof.

(f) The terms which follow, when used in this Agreement, shall have the meanings indicated. The term "the Effective Date" shall mean each date that the Registration Statement and any post-effective amendment or amendments thereto became or become effective and each date after the date hereof on which the Company's most recent Annual Report on Form 10-K is filed. "Execution Time" shall mean the date and time that this Agreement is executed and delivered by the parties hereto. "Basic Prospectus" shall mean the form of basic prospectus relating to the Securities contained in the Registration Statement at the Effective Date. "Prospectus" shall mean the Basic Prospectus as supplemented by the Prospectus Supplement and any applicable Pricing Supplement. "Registration Statement" shall mean the registration statement referred to in paragraph (a) above, including incorporated documents, exhibits and financial statements, as amended at the Execution Time. "Rule 415" and "Rule 424" refer to such rules under the Act. Any reference herein to the Registration Statement, the Basic Prospectus, the Prospectus Supplement or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3, which were filed under the Exchange Act on or before the Effective Date of the Registration Statement or the issue date of the Basic Prospectus, the Prospectus Supplement or the Prospectus, as the case may be; and any reference herein to the terms "amend", "amendment" or "supplement" with respect to the Registration Statement, the Basic Prospectus, the Prospectus Supplement or the Prospectus shall be deemed to refer to and include the filing of any document under the Exchange Act after the Effective Date of the Registration Statement or the issue date of the Basic Prospectus, the Prospectus Supplement or the Prospectus, as the case may be, deemed to be incorporated therein by reference.

2. Appointment of Agents; Solicitation by the Agents of Offers to Purchase; Sales of Notes to a Purchaser. (a) Subject to the terms and conditions set forth herein and to the reservation by the Company of the right to sell Securities directly on its own behalf, the Company hereby authorizes each of the Agents to act as its agent to solicit offers for the purchase of all or part of the Notes from the Company.

On the basis of the representations and warranties, and subject to the terms and conditions set forth herein, each of the Agents agrees, as agent of the Company, when requested by the Company to use its reasonable best efforts to solicit offers to purchase the Notes from the Company upon the terms and conditions set forth in the Prospectus (and any supplement thereto) and in the Procedures. Each Agent shall make reasonable efforts to assist the Company in obtaining performance by each purchaser whose offer to purchase Notes has been solicited by such Agent and accepted by the Company, but such Agent shall not, except as otherwise

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provided in this Agreement, be obligated to disclose the identity of any purchaser or have any liability to the Company in the event any such purchase is not consummated for any reason. Except as provided in Section 2(b), under no circumstances will any Agent be obligated to purchase any Notes for its own account. It is understood and agreed, however, that if approved by the Company any Agent may purchase Notes as principal pursuant to Section 2(b).

Each Agent agrees that in carrying out the transactions contemplated by the Agreement, it will observe and comply with all securities or blue sky laws, regulations, rules and ordinances in any jurisdiction in which the Notes may be offered, sold or delivered applicable to it as Agent hereunder. Each Agent agrees not to cause any advertisement of the Notes to be published in any newspaper or periodical or posted in any public place and not to publicly issue any circular relating to the Notes other than the Prospectus, except in any case with the prior express consent of the Company.

The Company reserves the right, in its sole discretion, to instruct the Agents to suspend at any time, for any period of time or permanently, the solicitation of offers to purchase Notes. Upon receipt of instructions from the Company, the Agents will forthwith suspend solicitation of offers to purchase Notes from the Company until such time as the Company has advised them that such solicitation may be resumed.

The Company agrees to pay each Agent a commission, for such Agent's services in acting as an agent and not for a purchase by such Agent as principal, on the Closing Date with respect to each sale of Notes by the Company as a result of a solicitation made by such Agent, in an amount equal to that percentage specified in Schedule I hereto of the aggregate principal amount of the Notes sold by the Company. Such commission shall be payable as specified in the Procedures.

The Company may from time to time offer Securities or Notes for sale otherwise than through an Agent and from time to time may appoint additional agents to sell the Notes; provided, however, that so long as this Agreement shall be in effect, the Company shall not solicit or accept offers to purchase Notes through any agent other than an Agent, except that the Company may accept offers to purchase Notes through an agent other than an Agent if the Company gives the Agents reasonable prior notice of such acceptance and any such agent enters into an agreement with the Company on terms which are substantially similar to those contained in or incorporated in this Agreement.

If the Company shall default in its obligations to deliver Notes to a purchaser whose offer it has accepted, the Company shall indemnify and hold each of you harmless against any loss, claim or damage arising from or as a result of such default by the Company.

(b) Subject to the terms and conditions stated herein, whenever the Company and any of you determine that the Company shall sell Notes directly to any of you as principal, each such sale of Notes shall be made in accordance with the terms of this Agreement and a supplemental agreement relating to such sale. Each such supplemental agreement is herein referred to as a "Terms Agreement". Each Terms Agreement shall describe the Notes to be purchased by the Purchaser pursuant thereto and shall specify the aggregate principal amount of such Notes, the price to be paid to the Company for such Notes, the maturity date of such Notes,

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the rate at which interest will be paid on such Notes, the dates on which interest will be paid on such Notes and the record date with respect to each such payment of interest, the Closing Date for the purchase of such Notes, the place of delivery of the Notes and payment therefor, the method of payment and any requirements for the delivery of opinions of counsel, certificates from the Company or its officers or a letter from the Company's independent public accountants as described in Section 6(b). Any such Terms Agreement may also specify the period of time referred to in Section 4(1) and certain terms of the reoffering of the Notes. Any Terms Agreement shall be substantially in the form attached hereto as Exhibit B and may take the form of an exchange of any standard form of written telecommunication between the Purchaser and the Company. The Purchaser's commitment to purchase Notes shall be deemed to have been made on the basis of the representations and warranties of the Company herein contained and shall be subject to the terms and conditions herein set forth.

Delivery of the certificates for Notes sold to the Purchaser pursuant to a Terms Agreement shall be made not later than the Closing Date agreed to in such Terms Agreement, against payment of funds to the Company in the net amount due to the Company for such Notes by the method and in the form set forth in the Procedures unless otherwise agreed to between the Company and the Purchaser in such Terms Agreement.

Unless otherwise agreed to between the Company and the Purchaser in a Terms Agreement, any Note sold to a Purchaser (i) shall be purchased by such Purchaser at a price equal to 100% of the principal amount thereof less a percentage equal to the commission applicable to an agency sale of a Note of identical maturity and (ii) may be resold by such Purchaser at varying prices related to prevailing market prices determined at the time of resale or, if set forth in the applicable Terms Agreement and Pricing Supplement, at a fixed public offering price. In connection with any resale of Notes purchased, a Purchaser may use a selling or dealer group and may reallow to any broker or dealer any portion of the discount or commission payable pursuant hereto. Any resale at a discount may not exceed the amount set forth in the Pricing Supplement relating to such Notes.

3. Offering and Sale of Notes. Each Agent and the Company agree to perform the respective duties and obligations specifically provided to be performed by them in the Procedures.

4. Agreements. The Company agrees with you that:

(a) Prior to the termination of the offering of the Notes (including by way of resale by a Purchaser of Notes), the Company will not file any amendment to the Registration Statement or supplement to the Prospectus (except for (i) periodic or current reports filed under the Exchange Act, (ii) a supplement relating to any offering of Notes providing solely for the specification of or a change in the maturity dates, interest rates, issuance prices or other similar terms of any Notes or (iii) an amendment or a supplement relating to an offering of Securities other than the Notes) unless the Company has furnished each of you through your counsel a copy for your review prior to filing and given each of you a reasonable opportunity to comment on any such proposed amendment or supplement. Subject to the foregoing sentence, the Company will cause each supplement to the Prospectus to be filed with the Commission pursuant to the applicable paragraph of Rule 424(b) within the time period prescribed and will provide evidence

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satisfactory to you of such filing. The Company will promptly advise each of you
(i) when the Prospectus, and any supplement thereto, shall have been filed with the Commission pursuant to Rule 424(b), (ii) when, prior to termination of any offering of Notes, any amendment of the Registration Statement (except periodic or current reports filed under the Exchange Act) shall have been filed or become effective, (iii) of any request by the Commission for any amendment of the Registration Statement or supplement to the Prospectus or for any additional information, (iv) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or the institution or threatening of any proceeding for that purpose and (v) of the receipt by the Company of any notification with respect to the suspension of the qualification of the Notes for sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose. The Company will use its best efforts to prevent the issuance of any such stop order and, if issued, to obtain as soon as possible the withdrawal thereof.

(b) If, at any time when a prospectus relating to the Notes is required to be delivered under the Act, any event occurs as a result of which the Prospectus as then supplemented would include any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, or if it shall be necessary to amend the Registration Statement or to supplement the Prospectus to comply with the Act or the Exchange Act or the respective rules thereunder, the Company promptly will (i) notify each of you to suspend solicitation of offers to purchase Notes (and, if so notified by the Company, each of you shall forthwith suspend such solicitation and cease using the Prospectus as then supplemented), (ii) prepare and file with the Commission, subject to the first sentence of paragraph (a) of this Section 4, an amendment or supplement which will correct such statement or omission or effect such compliance and (iii) supply any supplemented Prospectus to each of you in such quantities as you may reasonably request. If such amendment or supplement is satisfactory in all respects to you, you will, upon the filing of such amendment or supplement with the Commission and upon the effectiveness of an amendment to the Registration Statement, if such an amendment is required, resume your obligation to solicit offers to purchase Notes hereunder.

(c) The Company, during the period when a prospectus relating to the Notes is required to be delivered under the Act, will file promptly all documents required to be filed with the Commission pursuant to Section 13(a),
13(c), 14 or 15(d) of the Exchange Act and will furnish to each of you copies of such documents.

(d) As soon as practicable, the Company will make generally available to its security holders and to each of you an earnings statement or statements of the Company and its subsidiaries which will satisfy the provisions of Section 11(a) of the Act and Rule 158 under the Act.

(e) The Company will furnish to each of you and your counsel, without charge, copies of the Registration Statement (including exhibits thereto), each amendment or supplement to the Indenture entered into subsequent to the date hereof, and, so long as delivery of a prospectus may be required by the Act, as many copies of the Prospectus and any supplement thereto as you may reasonably request.

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(f) The Company will use its best efforts to arrange for the qualification of the Notes for sale under the laws of such jurisdictions as any of you may reasonably designate, will maintain such qualifications in effect so long as required for the distribution of the Notes, except that the Company shall not be required to qualify as a foreign corporation or dealer in securities or to execute a general consent to service of process in any jurisdiction.

(g) The Company shall, whether or not any sale of the Notes is consummated, (i) pay all expenses incident to the performance of its obligations under this Agreement and any Terms Agreement, including the fees and disbursements of its accountants and counsel, the cost of printing or other production and delivery of the Registration Statement, the Prospectus, all amendments thereof and supplements thereto, the Supplemental Indenture, this Agreement, any Terms Agreement and all other documents relating to the offering, the cost of preparing, printing, packaging and delivering the Notes, the fees and disbursements of your counsel incurred in compliance with Section 4(f) (such fees not to exceed $10,000), the fees and disbursements of the Trustee and the fees of any agency that rates the Notes, (ii) reimburse each of you as requested for all out-of-pocket expenses (including pre-approved advertising expenses), if any, incurred by you in connection with the implementation of this program and
(iii) pay the reasonable fees and expenses of your counsel incurred in connection with the implementation of this program.

(h) Each acceptance by the Company of an offer to purchase Notes will be deemed to be an affirmation that its representations and warranties contained in this Agreement are true and correct at the time of such acceptance, as though made at and as of such time, and a covenant that such representations and warranties will be true and correct at the Closing Date relating to such acceptance, as though made at and as of such time (it being understood that for purposes of the foregoing affirmation and covenant such representations and warranties shall relate to the Registration Statement and Prospectus as amended or supplemented at each such time). Each such acceptance by the Company of an offer for the purchase of Notes shall be deemed to constitute an additional representation, warranty and agreement by the Company that, as of the Closing Date for the sale of such Notes, after giving effect to the issuance of such Notes, of any other Notes to be issued on or prior to such Closing Date and of any other Securities to be issued and sold by the Company on or prior to such Closing Date, the aggregate amount of Securities (including any Notes) which have been issued and sold by the Company will not exceed the amount of Securities registered pursuant to the Registration Statement. The Company will inform you promptly upon your request of the aggregate amount of Securities registered under the Registration Statement which remain unsold.

(i) Each time the Company files with the Commission an Annual Report on Form 10-K or a Quarterly Report on Form 10-Q or a material amendment or supplement thereto, each time that the Company requests you to solicit offers to purchase Notes and each time that a Terms Agreement is executed and delivered, the Company will deliver or cause to be delivered promptly to each of you a certificate of the Company, in form reasonably satisfactory to you, signed by the Chief Executive Officer or the President or the principal financial or accounting officer of the Company, dated the date of delivery of such certificate, of the same tenor as the certificate referred to in Section 5(d) but modified to relate to the Registration Statement and the Prospectus as amended or supplemented at the time of delivery of such certificate; provided that no such certificate shall be required to be delivered if, since the date of the certificate most

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recently theretofore delivered to you pursuant to Section 5(d), 6(b) or this
Section 4(i), either (a) there has been no amendment or supplement to the Registration Statement or the Prospectus or (b) any amendments or supplements to the Registration Statement or Prospectus are (i) filed solely to insert a description of any Securities other than Notes, (ii) filed solely to specify or change the maturity dates, interest rates, issuance prices or other terms of any Notes theretofore sold or to change the principal amount of Securities remaining to be sold or (iii) in the form of a Current Report on Form 8-K filed with the Commission solely for the purpose of adding exhibits pursuant to Item 601 of Regulation S-K.

(j) Each time the Company files with the Commission an Annual Report on Form 10-K or a Quarterly Report on Form 10-Q or a material amendment or supplement thereto, each time that the Company requests you to solicit offers to purchase Notes and each time that a Terms Agreement is executed and delivered, the Company will furnish or cause to be furnished promptly to each of you a written opinion of counsel for the Company, in form reasonably satisfactory to you, dated the date of delivery of such opinion, of the same tenor as the opinion referred to in Section 5(b) but modified to relate to the Registration Statement and the Prospectus as amended or supplemented at the time of delivery of such opinion; provided that no such opinion shall be required to be delivered if, since the date of the opinion most recently theretofore delivered to you pursuant to Section 5(b), 6(b) or this Section 4(j), either (a) there has been no amendment or supplement to the Registration Statement or the Prospectus or (b) any amendments or supplements to the Registration Statement or the Prospectus are (i) filed solely to insert a description of any Securities other than Notes, (ii) filed solely to specify or change the maturity dates, interest rates, issuance prices or other terms of any Notes theretofore sold or to change the principal amount of Securities remaining to be sold or (iii) in the form of a Current Report on Form 8-K filed with the Commission solely for the purpose of adding exhibits pursuant to Item 601 of Regulation S-K.

(k) Each time the Company files with the Commission an Annual Report on Form 10-K or a Quarterly Report on Form 10-Q or a material amendment or supplement thereto, each time that the Company requests you to solicit offers to purchase Notes and each time that a Terms Agreement is executed and delivered, the Company will cause its independent public accountants to furnish promptly to each of you a letter, in form reasonably satisfactory to you, dated the date of delivery of such letter, of the same tenor as the letter referred to in Section 5(e) but modified to relate to the Registration Statement and the Prospectus as amended or supplemented at the time of delivery of such letter, with such changes as may be necessary to reflect changes in the financial statements and other information derived from the accounting records of the Company; provided that if the Prospectus or Registration Statement is amended or supplemented solely to include or incorporate by reference financial information as of and for a fiscal quarter, the Company's independent public accountants may limit the scope of such letter, which shall be satisfactory in form to each of you, to the unaudited financial statements, the related "Management's Discussion and Analysis of Financial Condition and Results of Operations" and any other information of an accounting, financial or statistical nature included in such amendment or supplement, unless, in the reasonable judgment of any of you, such letter should cover other information or changes in specified financial statement line items.

(l) During the period, if any, specified in any Terms Agreement, the Company shall not, without the prior consent of the Purchaser thereunder, offer, sell or contract

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to sell, or otherwise dispose of, directly or indirectly, or announce the offering of, any first mortgage bonds issued by the Company (other than the Notes being sold pursuant to such Terms Agreement).

(m) Notwithstanding the foregoing, it is agreed that if, at any time and from time to time during the term of this Agreement, the Company should deliver to the Agents notification of its decision to suspend any sale of Notes hereunder, then during the period of any such suspension or suspensions the Company shall be relieved of its obligation to provide to the Agents the certificate, opinions and letter required pursuant to Sections 4(i), 4(j) and 4(k) hereof. However, whenever such a suspension is lifted, the Company shall be required to deliver to the Agents, prior to the resumption of any sale of Notes hereunder, the most recent certificate, opinions and letter which would have been required except for the suspension.

(n) During the term of this Agreement, the Company shall furnish to each Agent (i) copies of all annual, quarterly and other reports furnished to the shareholders of the Company, (ii) copies of all annual, quarterly and current reports (without exhibits but including documents incorporated therein by reference) of the Company filed with the Commission under the Exchange Act,
(iii) copies of all announcements made to the general financial community and
(iv) notice of (x) any decrease in the rating or (y) credit watch with negative implications, in either case of the Notes or any other debt securities of the Company, by any "nationally recognized statistical rating organization" (as defined for purposes of Rule 436(g) under the Act).

(o) The Company agrees that any person who has agreed to purchase and pay for any Note pursuant to a solicitation by any of the Agents shall have the right to refuse to purchase such Note if, subsequent to the agreement to purchase such Note, any change, condition or development specified in any of Sections 8(b)(iii), (iv) or (v) shall have occurred (with the judgment of the Agent which presented the offer to purchase such Note being substituted for any judgment of a Purchaser required therein) the effect of which is, in the judgment of the Agent which presented the offer to purchase such Note, so material and adverse as to make it impractical or inadvisable to proceed with the sale and delivery of such Note (it being understood that under no circumstance shall any such Agent have any duty or obligation to the Company or to any such person to exercise the judgment permitted to be exercised under this
Section 4(o)).

5. Conditions to the Obligations of the Agents. The obligations of each Agent to solicit offers to purchase the Notes shall be subject to the accuracy of the representations and warranties on the part of the Company contained herein as of the Execution Time, on the Effective Date, when any supplement to the Prospectus relating to the Notes is filed with the Commission and as of each Closing Date, to the accuracy of the statements of the Company made in any certificates pursuant to the provisions hereof, to the performance by the Company of its obligations hereunder and to the following additional conditions:

(a) If filing of the Prospectus, or any supplement thereto, is required pursuant to Rule 424(b), the Prospectus, and any such supplement, shall have been filed in the manner and within the time period required by Rule
424(b); and no stop order suspending the effectiveness of the Registration Statement shall have been issued and no proceedings for that purpose shall have been instituted or threatened.

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(b) The Company shall have furnished to each Agent the opinions of LeBoeuf, Lamb, Greene & MacRae, L.L.P., counsel to the Company and Robert W. Stahman, Esq., General Counsel for the Company, dated the Execution Time substantially in the forms of Exhibits D and E hereto.

(c) Each Agent shall have received from Sullivan & Cromwell LLP, counsel for the Agents, such opinion or opinions, dated the Execution Time, with respect to the incorporation of the Company, the validity of the Indenture and the Notes, the Registration Statement, the Prospectus (together with any supplement thereto) and other related matters as the Agents may reasonably require, and the Company shall have furnished to such counsel such documents as they may reasonably request for the purpose of enabling them to pass upon such matters. In rendering their opinions, Sullivan & Cromwell LLP may rely upon the opinion described above of Robert W. Stahman, Esq., General Counsel for the Company, as to all matters of Idaho, Montana, Nevada, Oregon and Wyoming law.

(d) The Company shall have furnished to each Agent a certificate of the Company, signed by the Chief Executive Officer or the President or the principal financial or accounting officer of the Company, dated the Execution Time, to the effect that:

(i) the representations and warranties of the Company in this Agreement are true and correct in all material respects on and as of the date hereof with the same effect as if made on the date hereof and the Company has complied with all the agreements and satisfied all the conditions on its part to be performed or satisfied as a condition to the obligation of the Agents to solicit offers to purchase the Notes;

(ii) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted or, to the Company's knowledge, threatened; and

(iii) since the date of the most recent audited financial statements included in or incorporated by reference in the Prospectus, there has been no material adverse change or any development that could reasonably be expected to result in a material adverse change in the condition (financial or other), earnings, business or properties of the Company and its subsidiaries considered as a whole, whether or not arising from transactions in the ordinary course of business, except as set forth in or contemplated by the Prospectus.

(e) At the Execution Time, Deloitte & Touche shall have furnished to each Agent a letter or letters (which may refer to letters previously delivered to the Agents), dated as of the Execution Time to the effect set forth in Exhibit C hereto.

(f) Prior to the Execution Time, the Company shall have furnished to each Agent such further information, documents and certificates as the Agents may reasonably request.

If any of the conditions specified in this Section 5 shall not have been fulfilled in all material respects when and as provided in this Agreement, or if any of the opinions and

11

certificates mentioned above or elsewhere in this Agreement shall not be in all material respects reasonably satisfactory in form and substance to such Agents and counsel for the Agents, this Agreement and all obligations of any Agent hereunder may be cancelled at any time by the Agents. Notice of such cancellation shall be given to the Company in writing or by telephone or telegraph confirmed in writing.

The documents required to be delivered by this Section 5 shall be delivered at the office of LeBoeuf, Lamb, Greene & MacRae, L.L.P., counsel for the Company, on the date hereof.

6. Conditions to the Obligations of a Purchaser. The obligations of a Purchaser to purchase any Notes will be subject to the accuracy of the representations and warranties on the part of the Company herein as of the date of the related Terms Agreement and as of the Closing Date for such Notes, to the performance and observance by the Company of all covenants and agreements herein contained on its part to be performed and observed and to the following additional conditions precedent:

(a) No stop order suspending the effectiveness of the Registration Statement shall have been issued and no proceedings for that purpose shall have been instituted or threatened.

(b) To the extent agreed to between the Company and the Purchaser in a Terms Agreement, the Purchaser shall have received, appropriately updated,
(i) a certificate of the Company, dated as of the Closing Date, to the effect set forth in Section 5(d) (except that references to the Prospectus shall be to the Prospectus as supplemented as of the date of such Terms Agreement), (ii) the opinions of LeBoeuf, Lamb, Greene & MacRae, L.L.P., and Robert W. Stahman, Esq., counsel for the Company, dated as of the Closing Date, to the effect referred to in Section 5(b), (iii) the opinion(s) of Sullivan & Cromwell LLP, counsel for the Purchaser, dated as of the Closing Date, to the effect referred to in
Section 5(c), and (iv) the letter of Deloitte & Touche, independent accountants for the Company, dated as of the Closing Date, to the effect referred to in
Section 5(e).

(c) Prior to the Closing Date, the Company shall have furnished to the Purchaser such further information, certificates and documents as the Purchaser may reasonably request.

If any of the conditions specified in this Section 6 shall not have been fulfilled in all material respects when and as provided in this Agreement and the applicable Terms Agreement, or if any of the opinions and certificates mentioned above or elsewhere in this Agreement or such Terms Agreement and required to be delivered to the Purchaser pursuant to the terms hereof and thereof shall not be in all material respects reasonably satisfactory in form and substance to the Purchaser and its counsel, such Terms Agreement and all obligations of the Purchaser thereunder and with respect to the Notes subject thereto may be cancelled at, or at any time prior to, the respective Closing Date by the Purchaser. Notice of such cancellation shall be given to the Company in writing or by telephone or telegraph confirmed in writing.

12

7. Indemnification. (a) The Company will indemnify and hold harmless each of you against any losses, claims, damages or liabilities, joint or several, to which you may become subject, under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in any preliminary prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus, or any amendment or supplement thereto, and any other prospectus relating to the Notes, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading; and will reimburse each of you for any legal or other expenses reasonably incurred by you in connection with investigating or defending against such loss, claim, damage, liability or action as such expenses are incurred; provided, however, that the Company shall not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon an untrue statement or alleged untrue statement or omission or alleged omission made in any preliminary prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus, or such amendment or supplement and any other prospectus relating to the Notes, in reliance upon and in conformity with information furnished in writing to the Company by you or on your behalf for inclusion therein or arising out of, or based upon, statements in or omissions from Exhibits 25.1 and 25.3 to the Registration Statement which shall constitute the Statements of Eligibility of the Trustees on Forms T-1 and T-2, or amendments thereto, under the Indenture and provided further that the Company shall not be liable to any of you under the indemnity agreement in this subsection on account of any such loss, claim, damage or liability of yours arising from the sale of the Notes to any person, if at or prior to the written confirmation of such sale a copy of the Prospectus (exclusive of the documents incorporated by reference therein), or of the Prospectus as then amended or supplemented (exclusive of the documents incorporated by reference therein) shall not have been given or sent to such person by you or on your behalf. This indemnity agreement shall be in addition to any liability which the Company may otherwise have.

The foregoing indemnity agreement shall, upon the same terms and conditions, extend to and inure to the benefit of each person, if any, who controls any of you within the meaning of the Act.

(b) Each of you severally and not jointly will indemnify and hold harmless the Company against any losses, claims, damages or liabilities to which the Company may become subject, under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in any preliminary prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus, or any amendment or supplement thereto, and any other prospectus relating to the Notes, or arise out of or are based upon the omission or the alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in a preliminary prospectus, any preliminary prospectus supplement, the Registration Statement, the Prospectus, or such amendment or supplement, and any other Prospectus relating to the Notes, in reliance upon and in conformity with information furnished in writing to the Company by you or on your behalf for inclusion therein; and will reimburse the Company for any legal or other expenses reasonably incurred by the Company in connection

13

with investigating or defending against any such loss, claim, damage, liability or action as such expenses are incurred. This indemnity agreement shall be in addition to any liability which you may otherwise have.

The foregoing indemnity agreement shall, upon the same terms and conditions, extend to and inure to the benefit of each director of the Company, each of its officers who has signed the Registration Statement and each person, if any, who controls the Company within the meaning of the Act.

(c) Promptly after receipt by an indemnified party under subsection (a) or (b) above of notice of the commencement of any action, such indemnified party shall, if a claim in respect thereof is to be made against the indemnifying party under such subsection, notify the indemnifying party in writing of the commencement thereof; but the omission so to notify the indemnifying party shall not relieve it from any liability which it may have to any indemnified party otherwise than under such subsection. In case any such action shall be brought against any indemnified party, and it shall notify the indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate in, and, to the extent that it shall wish, jointly with any other indemnifying party similarly notified, to assume the defense thereof, with counsel satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnifying party), and after notice from the indemnifying party to such indemnified party of its election so to assume the defense thereof, the indemnifying party shall not be liable to such indemnified party under such subsection for any legal or other expenses subsequently incurred by such indemnified party in connection with the defense thereof other than reasonable costs of investigation.

(d) If the indemnification provided for in this Section 7 is unavailable to or insufficient to hold harmless an indemnified party under subsection (a) or (b) above in respect of any losses, claims, damages or liabilities (or actions in respect thereof) referred to therein, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities (or actions in respect thereof) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and each of you on the other from the offering of the Notes to which such loss, claim, damage or liability (or actions in respect thereof) relates and also the relative fault of the Company on the one hand and each of you on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities (or actions in respect thereof), as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and each of you on the other shall be deemed to be in the same proportion as the total net proceeds from such offering (before deducting expenses) received by the Company bear to the total discounts and commissions received by you. The relative fault shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company on the one hand or any of you on the other and the parties' relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company and each of you agree that it would not be just and equitable if contribution pursuant to this subsection (d) were determined by pro rata allocation or by any other method of allocation which does not take account of the equitable considerations referred to above in this subsection (d). The amount paid or payable by an indemnified party as

14

a result of the losses, claims, damages or liabilities (or actions in respect thereof) referred to above in this subsection (d) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this subsection (d), you shall not be required to contribute any amount in excess of the amount by which the total price at which the Notes sold by or through you to the public exceeds the amount of any damages which you have otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The obligations of each of you in this subsection
(d) to contribute are several in proportion to the respective purchases made by or through you to which such loss, claim, damage or liability (or action in respect thereof) relates and are not joint.

8. Termination. (a) This Agreement will continue in effect until terminated as provided in this Section 8. This Agreement may be terminated either by the Company as to any Agent or by any of you insofar as this Agreement relates to any Agent, by giving written notice of such termination to such Agent or the Company, as the case may be. This Agreement shall so terminate at the close of business on the first business day following the receipt of such notice by the party to whom such notice is given. In the event of such termination, no party shall have any liability to the other party hereto, except as provided in the fifth paragraph of Section 2(a), Section 4(g), Section 7 and Section 9.

(b) Each Terms Agreement shall be subject to termination in the absolute discretion of the Purchaser, by written notice given to the Company prior to delivery of any payment for any Note to be purchased thereunder, if subsequent to the agreement to purchase such Note and prior to such payment time
(i) there shall have occurred any change in or affecting the business or properties of the Company and its subsidiaries taken as a whole the effect of which is, in the judgment of the Purchaser, so material and adverse as to make it impracticable or inadvisable to enforce contracts for the sale of such Note,
(ii) there shall have been any decrease in the rating of any of the Company's first mortgage bonds by Moody's Investors Service Inc. or Standard & Poor's Corporation the effect of which is, in the judgment of the Purchaser, so material and adverse as to make it impracticable or inadvisable to enforce contracts for the sale of such Notes, (iii) trading in securities generally on the New York Stock Exchange shall have been suspended or limited or minimum prices shall have been established on such Exchange, (iv) a general moratorium on commercial banking activities shall have been declared by either Federal or New York State authorities or a material disruption in commercial banking or securities settlement or clearance services in the United States shall have occurred, (v) there shall have occurred any outbreak or escalation of hostilities, declaration by the United States of a national emergency or war or other calamity or crisis the effect of which is such as to make it, in the judgment of the Purchaser, impracticable or inadvisable to proceed with the public offering or the delivery of the Notes on the terms and in the manner contemplated in the Prospectus or (vi) there shall have occurred any adverse change in national or international financial, political or economic conditions the effect of which is such as to make it, in the judgment of the Purchaser, impracticable or inadvisable to proceed with the public offering or the delivery of the Notes on the terms and in the manner contemplated in the Prospectus.

15

9. Survival of Certain Provisions. The respective representations, warranties, indemnities and other statements of the Company or its officers and of you set forth in or made pursuant to this Agreement will remain in full force and effect, regardless of any investigation made by or on behalf of you or the Company or any of the persons referred to in Section 7 hereof, and will survive delivery of and payment for the Notes. The provisions of Sections 4(g) and 7 hereof shall survive the termination or cancellation of this Agreement. The provisions of this Agreement applicable to any purchase of a Note for which an agreement to purchase exists prior to the termination hereof shall survive any termination of this Agreement. If at the time of termination of this Agreement any Purchaser shall own any Notes with the intention of selling them, the provisions of Section 4 shall remain in effect until such Notes are sold by the Purchaser.

10. Notices. All communications hereunder will be in writing and effective only on receipt, and, if sent to any of you, will be mailed, delivered or telegraphed and confirmed to such of you, at the address specified in Schedule I hereto; or, if sent to the Company, will be mailed, delivered or telegraphed and confirmed to it at 1221 W. Idaho Street, Boise, Idaho 83702-5627, attention of the Secretary.

11. Successors. This Agreement will inure to the benefit of and be binding upon the parties hereto, their respective successors, the controlling persons referred to in Section 7 hereof and no other person will have any right or obligation hereunder.

12. Applicable Law. This Agreement will be governed by and construed in accordance with the laws of the State of New York.

13. Counterparts. This Agreement may be executed by any one or more of the parties hereto and thereto in any number of counterparts, each of which shall be deemed to be an original, but all such respective counterparts shall together constitute one and the same instrument.

16

If the foregoing is in accordance with your understanding of our agreement, please sign and return to us the enclosed duplicate hereof, whereupon this letter and your acceptance shall represent a binding agreement among the Company and you.

Very truly yours,

IDAHO POWER COMPANY

By: /s/ Darrel T. Anderson
   ------------------------------------
Darrel T. Anderson
Vice President, Chief Financial
Officer and Treasurer


The foregoing Agreement is hereby confirmed and accepted as of the date hereof.

BANC OF AMERICA SECURITIES LLC

By:  /s/ Peter Carbone
    -------------------------------
     Name:  Peter Carbone
     Title: Vice President

BANC ONE CAPITAL MARKETS, INC.

By:  /s/ Robert Nordlinger
    -------------------------------
     Name:  Robert Nordlinger
     Title: Managing Director

MCDONALD INVESTMENTS INC.

By:  /s/ Andrew T. Redinger
    -------------------------------
     Name:  Andrew T. Redinger
     Title: Sr. Vice President

U.S. BANCORP PIPER JAFFRAY INC.

By:  /s/ Robert A. Krueger
    -------------------------------
     Name:  Robert A. Krueger
     Title: Managing Director

WACHOVIA SECURITIES, INC.

By:  /s/ Keith Mauney
    -------------------------------
     Name:  Keith Mauney
     Title: Managing Director

WELLS FARGO BROKERAGE SERVICES, LLC

By: /s/ Joseph W. Glenn
    -------------------------------
     Name:  Joseph W. Glenn
     Title: Vice President


SCHEDULE I

Commissions:

The Company agrees to pay each Agent a commission equal to the following percentage of the principal amount of each Note sold on an agency basis by such Agent:

               Term                                  Commission Rate
               ----                                  ---------------

 9  months to less than 12 months                         0.125%
12  months to less than 18 months                         0.150
18  months to less than 2 years                           0.200
 2  years to less than 3 years                            0.250
 3  years to less than 4 years                            0.350
 4  years to less than 5 years                            0.450
 5  years to less than 6 years                            0.500
 6  years to less than 7 years                            0.550
 7  years to less than 10 years                           0.600
10  years to less than 15 years                           0.625
15  years to less than 20 years                           0.675
20  years or more                                         0.750

Unless otherwise specified in the applicable Terms Agreement, the discount or commission payable to a Purchaser shall be determined on the basis of the commission schedule set forth above.

Address for Notice to Agents:

Notices           to (1) Banc of America Securities LLC shall
                  be directed to it at Bank of America
                  Corporate Center, 100 North Tryon Street,
                  Charlotte, NC 28255

Attention of      MTN Desk

Tel: 704-388-4809 Fax: 704-388-9939

Notices to (2) Banc One Capital Markets, Inc. shall be directed to it at One Bank One Plaza, Suite IL1-0595, Chicago, IL 60670

Attention of Investment Grade Securities Tel: 312-732-7259 Fax: 312-732-4773


Notices to (3) McDonald Investments Inc. shall be directed to it at 800 Superior Avenue, Cleveland, OH 44114

Attention of Andrew T. Redinger Tel: 216-443-2305 Fax: 216-443-2993

Notices to (4) U.S. Bancorp Piper Jaffray Inc. shall be directed to it at 111 SW Fifth Avenue, Suite 1900, Portland, OR 97204

Attention of Darryl May Corporate Finance Tel: 503-275-4920 Fax: 503-275-3490

Notices to (5) Wachovia Securities, Inc. shall be directed to it at 301 South College, Charlotte, NC 28288

Attention of Jim Williams Tel: (704) 383-8766 Fax: (704) 383-9519

Notices to (6) Wells Fargo Brokerage Services, LLC shall be directed to it at 608 Second Avenue South, Suite 900, MAC N9303-097, Minneapolis, MN 55479

Attention of Joseph W. Glenn Tel: 612-667-3774 Fax: 612-667-4744

2

EXHIBIT A

IDAHO POWER COMPANY

First Mortgage Bonds,

Secured Medium-Term Notes, Series E, Administrative Procedures

Book-Entry Form

The First Mortgage Bonds, Secured Medium-Term Notes, Series E, Due from Nine Months to Thirty Years from Date of Issue (the "Notes") of Idaho Power Company (the "Company") are to be offered on a continuing basis. Banc of America Securities LLC, Banc One Capital Markets, Inc., McDonald Investments Inc., U.S. Bancorp Piper Jaffray Inc., Wachovia Securities, Inc. and Wells Fargo Brokerage Services, LLC, as agents (each an "Agent"), have agreed to use their reasonable best efforts to solicit purchases of Notes issued in fully registered form. The Agents will not be obligated to purchase Notes for their own account. The Notes are being sold pursuant to a Selling Agency Agreement between the Company and the agents named therein (including the Agents) dated the date hereof (the "Agency Agreement"). The Notes have been registered with the Securities and Exchange Commission (the "Commission"). The Notes will be issued under the Company's Indenture of Mortgage and Deed of Trust, dated as of October 1, 1937, between the Company and Deutsche Bank Trust Company Americas, formerly known as Bankers Trust Company (the "Trustee") and R.G. Page (Stanley Burg, successor individual trustee), as trustees, as supplemented, pursuant to the Thirty-seventh Supplemental Indenture dated as of April 1, 2003 (the "Indenture").

The Agency Agreement provides that Notes may also be purchased by an Agent acting solely as principal and not as agent. In the event of any such purchase, the functions of both the Agent and the beneficial owner under the administrative procedures set forth below shall be performed by such Agent acting solely as principal, unless otherwise agreed to between the Company and such Agent acting as principal.

Each Note will be represented by a Global Security (as defined hereinafter) delivered to Deutsche Bank Trust Company Americas ("Deutsche Bank") as agent for The Depository Trust Company ("DTC"), and recorded in the book-entry system maintained by DTC (a "Book-Entry Note"). An owner of a Book-Entry Note will not be entitled to receive a certificate representing such Note.

The procedures to be followed during, and the specific terms of, the solicitation of orders by the Agents and the sale as a result thereof by the Company are explained below. Administrative and record-keeping responsibilities will be handled for the Company by its Finance Department. The Company will advise the Agents and the Trustee in writing of those persons handling administrative responsibilities with whom the Agents and the Trustee are to communicate regarding orders to purchase Notes and the details of their delivery.

Administrative procedures and specific terms of the offering are explained below. Book-Entry Notes will be issued in accordance with the administrative procedures set forth below, as adjusted in accordance with changes in DTC's operating requirements. Unless otherwise defined herein, terms defined in the Indenture and the Notes shall be used herein as


therein defined. Only fixed rate Notes may be issued. To the extent the procedures set forth below conflict with the provisions of the Notes, the Indenture, DTC's operating requirements or the Agency Agreement, the relevant provisions of the Notes, the Indenture, DTC's operating requirements and the Agency Agreement shall control.

Administrative Procedures for Book-Entry Notes

In connection with the qualification of the Book-Entry Notes for eligibility in the book-entry system maintained by DTC, Deutsche Bank will perform the custodial, document control and administrative functions described below, in accordance with its respective obligations under a Letter of Representations from the Company and Deutsche Bank to DTC dated as of November 21, 2000, a Bring-Down Letter of Representations from the Company and Deutsche Bank to DTC dated as of April 9, 2003 and a Medium-Term Note Certificate Agreement between Deutsche Bank and DTC, dated as of October 21, 1988, and its obligations as a participant in DTC, including DTC's Same-Day Funds Settlement system ("SDFS").

Issuance:                      On any date of settlement (as defined under
--------                       "Settlement" below) for one or more Book-Entry
                               Notes, the Company will issue a single global
                               security in fully registered form without coupons
                               (a "Global Security") representing up to
                               $250,000,000 principal amount of all such
                               Book-Entry Notes that have the same Issue Date,
                               original issue discount provisions, if any,
                               Interest Payment Dates, Regular Record Dates,
                               redemption, repayment and extension provisions,
                               if any, Maturity Date, and interest rate
                               (collectively, the "Terms"). Each Global Security
                               will be dated and issued as of the date of its
                               authentication by the Trustee. Each Global
                               Security will bear an original issue date, which
                               will be (i) with respect to an original Global
                               Security (or any portion thereof), the original
                               issue date specified in such Global Security and
                               (ii) following a consolidation of Global
                               Securities, with respect to the Global Security
                               resulting from such consolidation, the most
                               recent Interest Payment Date to which interest
                               has been paid or duly provided for on the
                               predecessor Global Securities, regardless of the
                               date of authentication of such resulting Global
                               Security. No Global Security will represent any
                               securities in certificated form.

Identification Numbers:        The Company has arranged with the CUSIP Service
----------------------         Bureau of Standard & Poor's Corporation (the
                               "CUSIP Service Bureau") for the reservation of a
                               series of CUSIP numbers, which series consists of
                               approximately 900 CUSIP numbers and relates to
                               Global Securities representing Book-Entry Notes
                               and book-entry medium-term notes issued by the
                               Company with other series designations. Deutsche
                               Bank, the Company and DTC have obtained from the
                               CUSIP Service Bureau a written list of such
                               reserved CUSIP numbers. Deutsche Bank will assign
                               CUSIP numbers to Global Securities as described
                               below under Settlement Procedure "B". DTC will
                               notify the CUSIP Service Bureau periodically of
                               the CUSIP numbers that Deutsche Bank has assigned
                               to Global Securities.

                                      A-2

                               Deutsche Bank will notify the Company at any time
                               when fewer than 100 of the reserved CUSIP numbers
                               remain unassigned to Global Securities, and, if
                               it deems necessary, the Company will reserve
                               additional CUSIP numbers for assignment to Global
                               Securities. Upon obtaining such additional CUSIP
                               numbers, Deutsche Bank or the Company shall
                               deliver a list of such additional CUSIP numbers
                               to DTC.

Registration:                  Global Securities will be issued only in fully
------------                   registered form without coupons. Each Global
                               Security will be registered in the name of Cede &
                               Co., as nominee for DTC, or such other name as
                               may be requested by DTC, on the bond register for
                               the Notes maintained under the Indenture. The
                               beneficial owner of a Book-Entry Note (or one or
                               more indirect participants in DTC designated by
                               such owner) will designate one or more
                               participants in DTC (with respect to such
                               Book-Entry Note, the "Participants") to act as
                               agent or agents for such owner in connection with
                               the book-entry system maintained by DTC, and DTC
                               will record in book-entry form, in accordance
                               with instructions provided by such Participants,
                               a credit balance with respect to such beneficial
                               owner in such Book-Entry Note in the account of
                               such Participants. The ownership interest of such
                               beneficial owner (or such participant) in such
                               Book-Entry Note will be recorded through the
                               records of such Participants or through the
                               separate records of such Participants and one or
                               more indirect participants in DTC.

Transfers:                     Transfers of a Book-Entry Note will be
----------                     accomplished by book entries made by DTC and, in
                               turn, by Participants (and in certain cases, one
                               or more indirect participants in DTC) acting on
                               behalf of beneficial transferors and transferees
                               of such Note.

Exchanges:                     After the first Interest Payment Date on
---------                      individual issues of the Notes, Deutsche Bank may
                               deliver to DTC's Reorganization Department,
                               Interactive Data Control and the CUSIP Service
                               Bureau at any time a written notice of
                               consolidation (a copy of which shall be attached
                               to the resulting Global Security described below)
                               specifying (i) the CUSIP numbers of two or more
                               outstanding Global Securities that represent
                               Book-Entry Notes having the same Terms and for
                               which interest has been paid to the same date,
                               (ii) a date, occurring at least thirty days after
                               such written notice is delivered and at least
                               thirty days before the next Interest Payment Date
                               for such Book-Entry Notes, on which such Global
                               Securities shall be exchanged for a single
                               replacement Global Security and (iii) a new CUSIP
                               number to be assigned to such replacement Global
                               Security. Upon receipt of such a notice, DTC will
                               send to its participants (including Deutsche
                               Bank) a written reorganization notice to the
                               effect that such exchange will occur on such
                               date. Prior to the specified exchange date,
                               Deutsche Bank will deliver to the CUSIP Service
                               Bureau a written reorganization notice setting
                               forth such exchange date and such new CUSIP
                               number and stating that, as of

                                      A-3

                               such exchange date, the CUSIP numbers of the
                               Global Securities to be exchanged will no longer
                               be valid. On the specified exchange date,
                               Deutsche Bank will exchange such Global
                               Securities for a single Global Security bearing
                               the new CUSIP number and the CUSIP numbers of the
                               exchanged Global Securities will, in accordance
                               with CUSIP Service Bureau procedures, be
                               cancelled and not immediately reassigned.

Maturities:                    Each Book-Entry Note will mature on a date not
----------                     less than nine months nor more than thirty years
                               after the Issue Date for such Note.

Denominations:                 Book-Entry Notes will be issued in principal
-------------                  amounts of $1,000 or any amount in excess thereof
                               that is an integral multiple of $1,000.

Interest:                      General. Interest, if any, on each Book-Entry
--------                       Note will accrue from the Original Interest
                               Accrual Date for the first interest period or the
                               last date to which interest has been paid, if
                               any, for each subsequent interest period, on the
                               Global Security representing such Book-Entry
                               Note, and will be calculated and paid in the
                               manner described in such Book-Entry Note and in
                               the Prospectus (as defined in the Agency
                               Agreement), as supplemented by the applicable
                               Pricing Supplement. Unless otherwise specified
                               therein, each payment of interest on a Book-Entry
                               Note will include interest accrued to but
                               excluding the Interest Payment Date or to but
                               excluding Maturity (other than a Maturity of a
                               Book-Entry Note occurring on the 31st day of a
                               month, in which case such payment of interest
                               will include interest accrued to but excluding
                               the 30th day of such month). Interest payable at
                               the Maturity of a Book-Entry Note will be payable
                               to the Person to whom the principal of such Note
                               is payable. Standard & Poor's Corporation will
                               use the information received in the pending
                               deposit message described under Settlement
                               Procedure "C" below in order to include the
                               amount of any interest payable and certain other
                               information regarding the related Global Security
                               in the appropriate (daily or weekly) bond report
                               published by Standard & Poor's Corporation.

                               Regular Record Dates. Unless otherwise specified
                               pursuant to Settlement Procedure "A" below, the
                               Regular Record Dates with respect to the Interest
                               Payment Dates set forth below shall be March 15
                               and September 15.

                               Interest Payment Dates. Unless otherwise
                               specified pursuant to Settlement Procedure "A"
                               below, interest payments on Book-Entry Notes will
                               be made semiannually on April 1 and October 1 of
                               each year and at Maturity; provided, however,
                               that if an Interest Payment Date for a Book-Entry
                               Note is not a Business Day, the payment due on
                               such day shall be made on the next succeeding
                               Business Day and no interest shall accrue on such
                               payment for the period from and after such
                               Interest Payment Date; provided further, that in
                               the case of a Book-Entry Note

                                       A-4

                               issued between a Regular Record Date and an
                               Interest Payment Date, the first interest payment
                               will be made on the Interest Payment Date
                               following the next succeeding Regular Record
                               Date.

Calculation of Interest:       Interest on Book-Entry Notes (including interest
-----------------------        for partial periods) will be calculated on the
                               basis of a 360-day year of twelve 30-day months.

Payment of Principal and       Payment of Interest Only. Promptly after each
Interest:                      Regular Record Date, Deutsche Bank will deliver
------------------------       to the Company and DTC's Dividend Department a
                               written notice setting forth, by CUSIP number,
                               the amount of interest to be paid on each Global
                               Security on the following Interest Payment Date
                               (other than an Interest Payment Date coinciding
                               with Maturity) and the total of such amounts. DTC
                               will confirm the amount payable on each Global
                               Security on such Interest Payment Date by
                               reference to the appropriate (daily or weekly)
                               bond reports published by Standard & Poor's
                               Corporation. The Company will pay to Deutsche
                               Bank, as paying agent, the total amount of
                               interest due on such Interest Payment Date (other
                               than at Maturity), and Deutsche Bank will pay
                               such amount to DTC, at the times and in the
                               manner set forth below under "Manner of Payment".

                               Payments at Maturity. On or about the first
                               Business Day of each month, Deutsche Bank will
                               deliver to the Company and DTC a written list of
                               principal and interest to be paid on each Global
                               Security maturing in the following month.
                               Deutsche Bank, the Company and DTC will confirm
                               the amounts of such principal and interest
                               payments with respect to each such Global
                               Security on or about the fifth Business Day
                               preceding the Maturity of such Global Security.
                               On or before Maturity, the Company will pay to
                               Deutsche Bank, as paying agent, the principal
                               amount of such Global Security, together with
                               interest due at such Maturity. Deutsche Bank will
                               pay such amount to DTC at the times and in the
                               manner set forth below under "Manner of Payment".
                               If any maturity of a Global Security representing
                               Book-Entry Notes is not a Business Day, the
                               payment due on such day shall be made on the next
                               succeeding Business Day and no interest shall
                               accrue on such payment for the period from and
                               after such Maturity. Promptly after payment to
                               DTC of the principal and interest due at Maturity
                               of such Global Security, the Trustee will cancel
                               such Global Security in accordance with the
                               Indenture and so advise the Company. On the first
                               Business Day of each month, Deutsche Bank will
                               deliver to the Company a written statement
                               indicating the total principal amount of
                               Outstanding Global Securities as of the
                               immediately preceding Business Day. If the
                               Maturity of a Book-Entry Note is not a Business
                               Day, the payment due on such day shall be made on
                               the next succeeding Business Day and no interest
                               shall accrue on such payment for the period from
                               and after such Maturity.

                                      A-5

Manner of Payment.             The total amount of any principal and interest
------------------             due on Global Securities on any Interest Payment
                               Date or at Maturity shall be paid by the Company
                               to Deutsche Bank in immediately available funds
                               on such date. The Company will make such payment
                               on such Global Securities by wire transfer to
                               Deutsche Bank, to the following account:

                               Deutsche Bank Trust Company Americas
                               Corp Trust and Agency Services
                               ABA #: 021001033
                               Account Number: 01419647
                               Reference: Idaho Power First Mortgage Bonds.

                               Prior to 10 A.M. (New York City time) on the date
                               of Maturity or as soon as possible thereafter,
                               Deutsche Bank will pay by separate wire transfer
                               (using Fedwire message entry instructions in a
                               form previously specified by DTC) to an account
                               at the Federal Reserve Bank of New York
                               previously specified by DTC, in funds available
                               for immediate use by DTC, each payment of
                               principal (together with interest thereon) due on
                               a Global Security on such date. On each Interest
                               Payment Date (other than at Maturity), interest
                               payments shall be made to DTC, in funds available
                               for immediate use by DTC, in accordance with
                               existing arrangements between Deutsche Bank and
                               DTC. On each such date, DTC will pay, in
                               accordance with its SDFS operating procedures
                               then in effect, such amounts in funds available
                               for immediate use to the respective Participants
                               in whose names the Book-Entry Notes represented
                               by such Global Securities are recorded in the
                               book-entry system maintained by DTC. Neither the
                               Company nor Deutsche Bank shall have any direct
                               responsibility or liability for the payment by
                               DTC to such Participants of the principal of and
                               interest on the Book-Entry Notes.

                               Withholding Taxes. The amount of any taxes
                               required under applicable law to be withheld from
                               any interest payment on a Book-Entry Note will be
                               determined and withheld by the Participant,
                               indirect participant in DTC or other Person
                               responsible for forwarding payments and materials
                               directly to the beneficial owner of such Note.

Procedures upon Company's      Company Notice to Trustee Regarding Exercise of
Exercise of Optional           Optional Redemption. At least 35 days prior to
Redemption:                    the date on which it intends to redeem a
-------------------------      Book-Entry Note, the Company will notify the
                               Trustee that it is exercising such option with
                               respect to such Book-Entry Note on such date.

                               Trustee Notice to DTC Regarding Company's
                               Exercise of Optional Redemption. After receipt of
                               notice that the Company is exercising its option
                               to redeem a Book-Entry Note, the Trustee will, at
                               least 30 days

                                      A-6

                               before the redemption date for such Book-Entry
                               Note, deliver to DTC a notice identifying such
                               Book-Entry Note by CUSIP number and informing DTC
                               of the Company's exercise of such option with
                               respect to such Book-Entry Note.

                               Deposit of Redemption Price. On or before any
                               redemption date, the Company shall deposit with
                               such Trustee an amount of money sufficient to pay
                               the redemption price, plus interest accrued to
                               such redemption date, for all the Book-Entry
                               Notes or portions thereof which are to be repaid
                               on such redemption date. Such Trustee will use
                               such money to repay such Book-Entry Notes
                               pursuant to the terms set forth in such Notes.


Procedure for Rate Setting     The Company and the Agents will discuss from time
and Posting:                   to time the aggregate principal amount of, the
---------------------------    issuance price of, and the interest rates to be
                               borne by, Book-Entry Notes that may be sold as a
                               result of the solicitation of orders by the
                               Agents. If the Company decides to set prices of,
                               and rates borne by, any Book-Entry Notes in
                               respect of which the Agents are to solicit orders
                               (the setting of such prices and rates to be
                               referred to herein as "posting") or if the
                               Company decides to change prices or rates
                               previously posted by it, it will promptly advise
                               the Agents of the prices and rates to be posted.


Acceptance and Rejection of    Unless otherwise instructed by the Company, each
Orders:                        Agent will advise the Company promptly by
----------------------------   telephone of all orders to purchase Book-Entry
                               Notes received by such Agent, other than those
                               rejected by it in whole or in part in the
                               reasonable exercise of its discretion. Unless
                               otherwise agreed by the Company and the Agents,
                               the Company has the sole right to accept orders
                               to purchase Book-Entry Notes and may reject any
                               such orders in whole or in part.

Preparation of Pricing         If any order to purchase a Book-Entry Note is
Supplement:                    accepted by or on behalf of the Company, the
-----------------------        Company will prepare a pricing supplement (a
                               "Pricing Supplement") reflecting the applicable
                               interest rates and other terms of such Book-Entry
                               Note and will arrange to have such Pricing
                               Supplement filed with the Commission in
                               accordance with the applicable paragraph of Rule
                               424(b) under the Act and will supply at least ten
                               copies thereof (and additional copies if
                               requested) to the Agent which presented the order
                               (the "Presenting Agent"). The Presenting Agent
                               will cause a Prospectus and Pricing Supplement to
                               be delivered to the purchaser of such Book-Entry
                               Note.

                               In each instance that a Pricing Supplement is
                               prepared, the Presenting Agent will affix the
                               Pricing Supplement to Prospectuses prior to their
                               use. Outdated Pricing Supplements (other than
                               those retained for files) will be destroyed.

                                      A-7

Suspension of Solicitation;    The Company reserves the right, in its sole
Amendment or Supplement:       discretion, to instruct the Agents to suspend at
----------------------------   any time, for any period of time or permanently,
                               the solicitation of orders to purchase Book-Entry
                               Notes. Upon receipt of such instructions, the
                               Agents will forthwith suspend solicitation until
                               such time as the Company has advised them that
                               such solicitation may be resumed.

                               In the event that at the time the Company
                               suspends solicitation of purchases there shall be
                               any orders outstanding for settlement, the
                               Company will promptly advise the Agents and
                               Deutsche Bank whether such orders may be settled
                               and whether copies of the Prospectus as in effect
                               at the time of the suspension, together with the
                               appropriate Pricing Supplement, may be delivered
                               in connection with the settlement of such orders.
                               The Company will have the sole responsibility for
                               such decision and for any arrangements that may
                               be made in the event that the Company determines
                               that such orders may not be settled or that
                               copies of such Prospectus may not be so
                               delivered.

                               If the Company decides to amend or supplement the
                               Registration Statement (as defined in the Agency
                               Agreement) or the Prospectus, it will promptly
                               advise the Agents and furnish the Agents with the
                               proposed amendment or supplement and with such
                               certificates and opinions as are required, all to
                               the extent required by and in accordance with the
                               terms of the Agency Agreement. Subject to the
                               provisions of the Agency Agreement, the Company
                               may file with the Commission any such supplement
                               to the Prospectus relating to the Notes. The
                               Company will provide the Agents and Deutsche Bank
                               with copies of any such supplement, and confirm
                               to the Agents that such supplement has been filed
                               with the Commission pursuant to the applicable
                               paragraph of Rule 424(b).

Procedures For Rate Changes:   When the Company has determined to change the
---------------------------    interest rates of Book-Entry Notes being offered,
                               it will promptly advise the Agents and the Agents
                               will forthwith suspend solicitation of orders.
                               The Agents will telephone the Company with
                               recommendations as to the changed interest rates.
                               At such time as the Company has advised the
                               Agents of the new interest rates, the Agents may
                               resume solicitation of orders. Until such time
                               only "indications of interest" may be recorded.

Delivery of Prospectus:        A copy of the Prospectus (including the
----------------------         Prospectus Supplement) and a Pricing Supplement
                               relating to a Book-Entry Note must accompany or
                               precede the earliest of any written offer of such
                               Book-Entry Note, confirmation of the purchase of
                               such Book-Entry Note and payment for such
                               Book-Entry Note by its purchaser. If notice of a
                               change in the terms of the Book-Entry Notes is
                               received by the Agents between the time an order
                               for a Book-Entry Note is placed and the time
                               written confirmation thereof is sent by the
                               Presenting Agent to a customer or his

                                      A-8

                               agent, such confirmation shall be accompanied by
                               a Prospectus and Pricing Supplement setting forth
                               the terms in effect when the order was placed.
                               Subject to "Suspension of Solicitation; Amendment
                               or Supplement" above, the Presenting Agent will
                               deliver a Prospectus and Pricing Supplement as
                               herein described with respect to each Book-Entry
                               Note sold by it. The Company will make such
                               delivery if such Book-Entry Note is sold directly
                               by the Company to a purchaser (other than an
                               Agent).

Confirmation:                  For each order to purchase a Book-Entry Note
------------                   solicited by any Agent and accepted by or on
                               behalf of the Company, the Presenting Agent will
                               issue a confirmation to the purchaser, with a
                               copy to the Company, setting forth the details
                               set forth above and delivery and payment
                               instructions.


Settlement:                    The receipt by the Company of immediately
----------                     available funds in payment for a Book-Entry Note
                               and the authentication and issuance of the Global
                               Security representing such Book-Entry Note shall
                               constitute "settlement" with respect to such
                               Book-Entry Note. All orders accepted by the
                               Company will be settled on the third Business Day
                               following the date of sale of such Book-Entry
                               Note pursuant to the timetable for settlement set
                               forth below unless the Company and the purchaser
                               agree to settlement on another day which shall be
                               no earlier than the next Business Day following
                               the date of sale.

Settlement Procedures:         Settlement Procedures with regard to each
---------------------          Book-Entry Note sold by the Company through any
                               Agent, as agent, shall be as follows:

                               A. The Presenting Agent will advise the Company
                               by telephone (confirmed in writing) of the
                               following settlement information:

                                1. Exact name of the purchaser.

2. Principal amount.

3. Issue Date.

4. Original Interest Accrual Date.

5. Settlement date.

6. Interest rate.

7. Interest Payment Dates, if other than April 1 and October 1.

8. Regular Record Dates, if other than March 15 and September 15.

A-9

9. Redemption provisions, if any.

10. Maturity date.

11. Purchase Price.

12. Presenting Agent's commission, determined as provided in Section 2 of the Agency Agreement and certification that the purchasers were solicited solely by such Agent.

13. Net proceeds to the Company.

B. Deutsche Bank will assign a CUSIP number to the Global Security representing such Book-Entry Note and the Company will advise Deutsche Bank by telephone (confirmed in writing at any time on the same date) or electronic transmission of the information set forth in Settlement Procedure "A" above, such CUSIP number and the name of the Presenting Agent. Deutsche Bank will also notify the Presenting Agent by telephone of such CUSIP number as soon as practicable. Each such communication by the Company shall constitute a representation and warranty by the Company to Deutsche Bank and the Presenting Agent that (i) such Note is then, and at the time of issuance and sale thereof will be, duly authorized for issuance and sale by the Company, (ii) such Note, and the Global Security representing such Note, will conform with the terms of the Indenture for such Note, and (iii) upon authentication and delivery of such Global Security, the aggregate initial offering price of all Notes issued under the Indenture will not exceed $250,000,000 (except for Book-Entry Notes represented by Global Securities authenticated and delivered in exchange for or in lieu of Global Securities pursuant to the Indenture).

C. Deutsche Bank will enter a pending deposit message through DTC's Participant Terminal System providing the following settlement information to DTC (which shall route such information to Standard & Poor's Corporation) and the Presenting Agent:

1. The information set forth in Settlement Procedure "A".

2. Initial Interest Payment Date for such Book-Entry Note, number of days by which such date succeeds the related Regular Record Date and amount of interest payable on such Interest Payment Date.

3. CUSIP number of the Global Security representing such Book-Entry Note.

A-10

4. Whether such Global Security will represent any other Book-Entry Note (to the extent known at such time).

D. To the extent the Company has not already done so, the Company will deliver to the Trustee a Global Security in a form that has been approved by the Company, the Agents and the Trustee.

E. The Trustee will complete such Book-Entry Note, stamp the appropriate legend, as instructed by DTC, if not already set forth thereon, and authenticate the Global Security representing such Book-Entry Note.

F. DTC will credit such Book-Entry Note to Deutsche Bank's participant account at DTC.

G. Deutsche Bank will enter an SDFS deliver order through DTC's Participant Terminal System instructing DTC to (i) debit such Book-Entry Note to Deutsche Bank's participant account and credit such Book-Entry Note to the Presenting Agent's participant account and (ii) debit the Presenting Agent's settlement account and credit Deutsche Bank's settlement account for an amount equal to the price of such Book-Entry Note less the Presenting Agent's commission. The entry of such a deliver order shall constitute a representation and warranty by Deutsche Bank to DTC that (i) the Global Security representing such Book-Entry Note has been issued and authenticated and (ii) Deutsche Bank is holding such Global Security pursuant to the Medium-Term Note Certificate Agreement between Deutsche Bank and DTC.

H. The Presenting Agent will enter an SDFS deliver order through DTC's Participant Terminal System instructing DTC (i) to debit such Book-Entry Note to the Presenting Agent's participant account and credit such Book-Entry Note to the participant accounts of the Participants with respect to such Book-Entry Note and (ii) to debit the settlement accounts of such Participants and credit the settlement account of the Presenting Agent for an amount equal to the price of such Book-Entry Note.

I. Transfers of funds in accordance with SDFS deliver orders described in Settlement Procedures "G" and "H" will be settled in accordance with SDFS operating procedures in effect on the settlement date.

A-11

J. Deutsche Bank will, upon receipt of funds from the Presenting Agent in accordance with Settlement Procedure "G", wire transfer to the Company funds available for immediate use in the amount transferred to Deutsche Bank in accordance with Settlement Procedure "G". Payments made pursuant to this Settlement Procedure "J" will be made to an account maintained by the Company at Wells Fargo Bank (RTN: 121000248, Account Number:
4000033514).

K. The Presenting Agent will confirm the purchase of such Book-Entry Note to the purchaser either by transmitting to the Participants with respect to such Book-Entry Note a confirmation order or orders through DTC's institutional delivery system or by mailing a written confirmation to such purchaser.

Settlement Procedures          For orders of Book-Entry Notes solicited by any
Timetable:                     Agent and accepted by the Company for settlement
----------------------         on the first Business Day after the sale date,
                               Settlement Procedures "A" through "K" set forth
                               above shall be completed as soon as possible but
                               not later than the respective times (New York

City time) set forth below:

Settlement
Procedure         Time
---------         ----
A                 11:00 A.M. on the sale date
B                 12:00 Noon on the sale date
C                 2:00 P.M. on the sale date
D                 3:00 P.M. on the day before settlement
E                 9:00 A.M. on settlement date
F                 10:00 A.M. on settlement date
G-H               2:00 P.M. on settlement date
I                 4:45 P.M. on settlement date
J-K               5:00 P.M. on settlement date

If a sale is to be settled more than one Business Day after the sale date, Settlement Procedures "A", "B" and "C" shall be completed as soon as practicable but no later than 11:00 A.M. and 12:00 Noon on the first Business Day after the sale date and no later than 2:00 P.M. on the Business Day before the settlement date, respectively. Settlement Procedure "I" is subject to extension in accordance with any extension of Fedwire closing deadlines and in the other events specified in SDFS operating procedures in effect on the settlement date.

If settlement of a Book-Entry Note is rescheduled or cancelled, Deutsche Bank will deliver to DTC, through DTC's Participant Terminal System, a cancellation message to such effect by no later than 2:00 P.M. on the Business Day immediately preceding the scheduled settlement

A-12

                               date.

Failure to Settle:             If Deutsche Bank fails to enter an SDFS deliver
-----------------              order with respect to a Book-Entry Note pursuant
                               to Settlement Procedure "G", Deutsche Bank may
                               deliver to DTC, through DTC's Participant
                               Terminal System, as soon as practicable, a
                               withdrawal message instructing DTC to debit such
                               Book-Entry Note to Deutsche Bank's participant
                               account. DTC will process the withdrawal message,
                               provided that Deutsche Bank's participant account
                               contains a principal amount of the Global
                               Security representing such Book-Entry Note that
                               is at least equal to the principal amount to be
                               debited. If a withdrawal message is processed
                               with respect to all the Book-Entry Notes
                               represented by a Global Security, the Trustee
                               will cancel such Global Security in accordance
                               with the Indenture and so advise the Company and
                               will make appropriate entries in its records. The
                               CUSIP number assigned to such Global Security
                               shall, in accordance with CUSIP Service Bureau
                               procedures, be canceled and not immediately
                               reassigned. If a withdrawal message is processed
                               with respect to one or more, but not all, of the
                               Book-Entry Notes represented by a Global
                               Security, Deutsche Bank will exchange such
                               Book-Entry Note for two Global Securities, one of
                               which shall represent such Book-Entry Notes and
                               shall be cancelled immediately after issuance and
                               the other of which shall represent the other
                               Book-Entry Notes previously represented by the
                               surrendered Global Security and shall bear the
                               CUSIP number of the surrendered Global Security.

                               If the purchase price for any Book-Entry Note is
                               not timely paid to the Participants with respect
                               to such Note by the beneficial purchaser thereof
                               (or a Person, including an indirect participant
                               in DTC, acting on behalf of such purchaser), such
                               Participants and, in turn, the Presenting Agent
                               may enter SDFS deliver orders through DTC's
                               Participant Terminal System reversing the orders
                               entered pursuant to Settlement Procedures "H" and
                               "G", respectively. The Presenting Agent will
                               notify the Company by telephone of such failure.
                               Thereafter, Deutsche Bank will deliver the
                               withdrawal message and take the related actions
                               described in the preceding paragraph.

                               Notwithstanding the foregoing, upon any failure
                               to settle with respect to a Book-Entry Note, DTC
                               may take any actions in accordance with its SDFS
                               operating procedures then in effect. In the event
                               of a failure to settle with respect to one or
                               more, but not all, of the Book-Entry Notes to
                               have been represented by a Global Security,
                               Deutsche Bank will provide, in accordance with
                               Settlement Procedure "E", for the authentication
                               and issuance of a Global Security representing
                               the other Book-Entry Notes to have been
                               represented by such Global Security and will make
                               appropriate entries in its records.


Deutsche Bank Not to Risk      Nothing herein shall be deemed to require
Funds:                         Deutsche Bank to risk or
--------------------------

                                      A-13

                               expend its own funds in connection with any
                               payment to the Company, DTC, the Agents or the
                               purchaser, it being understood by all parties
                               that payment made by Deutsche Bank to the
                               Company, DTC, the Agents or the purchaser shall
                               be made only to the extent that funds are
                               provided to Deutsche Bank for such purpose.

Authenticity                   The Company will cause Deutsche Bank to furnish
of Signatures:                 the Agents from time to time with the specimen
-------------                  signatures of each of Deutsche Bank's officers,
                               employees or agents who have been authorized by
                               Deutsche Bank to authenticate Book-Entry Notes,
                               but the Agents will have no obligation or
                               liability to the Company or Deutsche Bank in
                               respect of the authenticity of the signature of
                               any officer, employee or agent of the Company or
                               Deutsche Bank on any Book-Entry Note.

Advertising Costs:             The Company will determine with the Agents the
------------------             amount of advertising that may be appropriate in
                               soliciting offers to purchase the Book-Entry
                               Notes. Advertising expenses will be paid by the
                               Company.

Periodic Statements from       Periodically, Deutsche Bank will send to the
Deutsche Bank:                 Company a statement setting forth the principal
------------------------       amount of Book-Entry Notes outstanding as of that
                               date and setting forth a brief description of any
                               sales of Book-Entry Notes of which the Company
                               has advised Deutsche Bank but which have not yet
                               been settled.

A-14

EXHIBIT B

Idaho Power Company

First Mortgage Bonds,
Secured Medium Term Notes, Series E

Due from Nine Months
to Thirty Years from Date of Issue

TERMS AGREEMENT

Idaho Power Company
1221 W. Idaho St.
Boise, Idaho 83702-5627

Attention:

Subject in all respects to the terms and conditions of the Selling Agency Agreement (the "Agreement") dated April 15, 2003, between
[Agents], and you, the undersigned agrees to purchase the following Notes of Idaho Power Company:

[Add additional terms as may be needed to identify Notes.]

Aggregate Principal Amount:                      $

Issue Date:

Original Interest Accrual Date:

Interest Rate:

Maturity Date:

Interest Payment Dates:

Regular Record Dates:

Discount or Commission:                          %                         of Principal Amount

Purchase Price:                                  %                         of Principal Amount [plus accrued
                                                                           interest from __________, 20__]

Settlement Date:

Price to Public:

Purchase Date and Time:


Place for Delivery of Notes and
Payment Therefor:

Method of Payment: [same day funds]

Redemption Provisions, if any:

Modification, if any, in the requirements to deliver the documents specified in Section 6(b) of the Agreement:

Period during which additional
Notes may not be sold pursuant to
Section 4(1) of the Agreement:

Syndicate Provisions:
(Set forth any provisions relating to
underwriters' default and step-up of
amounts to be purchased.)

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

[Purchaser]

By:

Accepted:

Idaho Power Company

By:
Title:

B-2

EXHIBIT C

Pursuant to Section 5(e) of the Selling Agency Agreement, the accountants shall furnish a letter to the Agents to the effect that:

(i) They are independent certified public accountants with respect to the Company and its subsidiaries within the meaning of the Act and the applicable rules and regulations thereunder adopted by the SEC;

(ii) In their opinion, the consolidated financial statements and consolidated financial statement schedules audited by them and included or incorporated by reference in the Registration Statement or the Prospectus comply as to form in all material respects with the applicable accounting requirements of the Act or the Exchange Act, as applicable, and the related rules and regulations adopted by the SEC, and, if applicable, they have performed the procedures specified by the American Institute of Certified Public Accountants for a review of interim financial information as described in SAS No. 71, Interim Financial Information, on the consolidated interim financial statements for the periods specified in such letter, as indicated in their reports thereon, copies of which have been furnished to the Agents;

(iii) The unaudited selected financial information with respect to the consolidated results of operations and financial position of the Company for the five most recent fiscal years included or incorporated by reference in the Prospectus and included or incorporated by reference in item 6 of the Company's Annual Report on Form 10-K for the most recent fiscal year agrees with the corresponding amounts (after restatement where applicable) in the audited consolidated financial statements for the five such fiscal years which were included or incorporated by reference in the Company's Annual Reports on Form 10-K for such fiscal years;

(iv) On the basis of limited procedures, not constituting an audit in accordance with generally accepted auditing standards, consisting of a reading of the unaudited financial statements and other information referred to below, a reading of the latest available interim financial statements of the Company and its subsidiaries, inspection of the minute books of the Company and its subsidiaries since the date of the latest audited financial statements included or incorporated by reference in the Prospectus, inquiries of officials of the Company and its subsidiaries responsible for financial and accounting matters and such other inquiries and procedures as may be specified in such letter, nothing has come to their attention that caused them to believe that:

(A) the unaudited consolidated statements of income, consolidated statements of comprehensive income, consolidated balance sheets, consolidated statements of cash flows and consolidated statements of capitalization included or incorporated by reference in the Company's Quarterly Reports on Form 10-Q incorporated by reference in the Prospectus do not comply as to form in all material respects with the applicable accounting requirements of the Exchange Act as it applies to Form 10-Q and the related rules and regulations adopted by the SEC;


(B) any material modifications should be made to the unaudited consolidated financial statements described in (A), included or incorporated by reference in the Prospectus, for them to be in conformity with generally accepted accounting principles;

(C) as of a specified date not more than five days prior to the date of such letter, there have been any changes in the consolidated capital stock (except for shares of 4% preferred stock) or any increase in the consolidated long-term debt of the Company and its subsidiaries, or any decreases in consolidated net assets or other items specified by the Agents, in each case as compared with amounts shown in the latest balance sheet included or incorporated by reference in the Prospectus, except in each case for changes, increases or decreases which the Prospectus discloses have occurred or may occur, for declarations of dividends, or which are described in such letter; and

(D) for the period from the date of the latest financial statements included or incorporated by reference in the Prospectus to the specified date referred to in Clause (C) there were any decreases in consolidated revenues, net income or earnings on common stock or other items specified by the Agents, or any increases in any items specified by the Agents, in each case as compared with the comparable period of the preceding year and with any other period of corresponding length specified by the Agents, except in each case for increases or decreases which the Prospectus discloses have occurred or may occur, for declarations of dividends, or which are described in such letter; and

(v) In addition to the audit referred to in their report(s) included or incorporated by reference in the Prospectus and the limited procedures, inspection of minute books, inquiries and other procedures referred to in paragraphs (ii) and (iv) above, they have carried out certain specified procedures, not constituting an audit in accordance with generally accepted auditing standards, with respect to certain amounts, percentages and financial information specified by the Agents which are derived from the general accounting records of the Company and its subsidiaries, which appear in the Prospectus (excluding documents incorporated by reference), or in Part II of, or in exhibits and schedules to, the Registration Statement specified by the Agents or in documents incorporated by reference in the Prospectus specified by the Agents, and have compared certain of such amounts, percentages and financial information with the accounting records of the Company and its subsidiaries and have found them to be in agreement, except as described in such letter.

All references in this Exhibit C to the Prospectus shall be deemed to refer to the Prospectus (including the documents incorporated by reference therein) as amended or supplemented (including the documents incorporated by reference therein) in relation to the Notes for purposes of the letter delivered at the Closing Date for such Notes.

C-2

EXHIBIT D

__________, 20__

To the Agents referred to in the Selling Agency Agreement Relating to:

$250,000,000 Principal Amount of First Mortgage Bonds, Secured Medium- Term Notes, Series E, of Idaho Power Company

Ladies and Gentlemen:

With reference to the issuance and sale by Idaho Power Company, an Idaho corporation (the "Company"), pursuant to the Selling Agency Agreement, dated April 15, 2003 (the "Agency Agreement"), between the Company and you of up to $250,000,000 aggregate principal amount of First Mortgage Bonds, Secured Medium-Term Notes, Series E (the "Notes"), to be issued under an Indenture of Mortgage and Deed of Trust, dated as of October 1, 1937, between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company) and R.G. Page, as Trustees (Stanley Burg, successor individual trustee) (the "Trustees"), as supplemented by all indentures supplemental thereto, the latest such supplemental indenture being the Thirty-seventh Supplemental Indenture, dated as of April 1, 2003 (said Indenture of Mortgage and Deed of Trust, as so supplemented, being hereinafter called the "Mortgage"), we advise you that we are counsel to the Company and in that capacity have reviewed or participated in the preparation of (1) the Mortgage; (2) the registration statement (File No. 333-103812) relating to the Notes filed with the Securities and Exchange Commission (the "Commission") under the Securities Act of 1933, as amended (the "Act") (said registration statement, as amended to the date of effectiveness, including the documents incorporated by reference therein as of such date pursuant to Item 12 of Form S-3 (the "Incorporated Documents") being hereinafter called the "Registration Statement"); (3) the prospectus, dated March 24, 2003 (the "Base Prospectus"), as supplemented by a prospectus supplement relating to the Notes, dated April 15, 2003 (the "Prospectus Supplement") (such prospectus, as so supplemented, including the incorporated documents, being hereinafter referred to as the "Prospectus"); (4) the Agency Agreement and (5) the Bond Application, dated April 15, 2003 for authentication and delivery of the Notes in an aggregate principal amount not to exceed $250,000,000 (the "Bond Application"). Terms not otherwise defined herein shall have the meanings given to them in the Agency Agreement.

We have reviewed such corporate records, certificates and other documents as we have considered necessary or appropriate for purposes of this opinion.

Upon the basis of such review, we are of the opinion that:

(1) The Mortgage has been duly authorized, executed and delivered by the Company, is a legal, valid and binding instrument enforceable in accordance with its terms, subject to bankruptcy, insolvency, reorganization or other laws of general applicability relating to or affecting mortgagees' and other creditors' rights, and to general principles of equity


(whether considered in a proceeding at law or in equity) and has been qualified under the Trust Indenture Act of 1939, as amended.

(2) The Notes, when issued and paid for as contemplated in the Agency Agreement and in an aggregate principal amount, which, together with all other first mortgage bonds issued and then outstanding under the Mortgage, after giving effect to the issuance and sale of any Notes and the retirement of any first mortgage bonds of the Company (including without limitation the Notes as well as any other first mortgage bonds previously issued by the Company under the Mortgage) that are concurrently being retired, does not exceed $900,000,000 or such other maximum amount as the Company may establish pursuant to Section 22 and 121 of the Mortgage, as supplemented and amended by all indentures supplemental thereto as of the date of the issuance of the Notes, will be legal, valid and binding obligations of the Company enforceable in accordance with their terms and entitled to the benefit of the security provided by the Mortgage, subject to bankruptcy, insolvency, reorganization or other laws of general applicability relating to or affecting mortgagees' and other creditors' rights and to general principles of equity (whether considered in a proceeding at law or in equity).

(3) The Agency Agreement has been duly authorized, executed and delivered by the Company.

(4) The Registration Statement, as of its effective date, and the Base Prospectus, as supplemented by the Prospectus Supplement, as of the date of the Prospectus Supplement, complied as to form in all material respects with the applicable requirements of the Act and the Securities Exchange Act of 1934, as amended, and the applicable instructions, rules and regulations of the Commission thereunder; the Registration Statement is effective under the Act; and, to the best of our knowledge, no proceedings for a stop order with respect thereto are pending or threatened under Section 8(d) of the Act.

(5) All regulatory consents and approvals required to be obtained by the Company from any governmental body or bodies in connection with the Company's issuance and sale of the Notes in the manner set forth in the Agency Agreement have been obtained and are in effect, except that the order of the Idaho Public Utilities Commission grants authority to sell the Notes through March 17, 2005; it being understood that we express no opinion as to any consents or approvals required to be obtained, or other actions required to be taken, under the securities or blue sky laws of any jurisdiction.

In passing upon the form of the Registration Statement and the form of the Base Prospectus, as supplemented by the Prospectus Supplement, we necessarily assume the correctness and completeness of the representations made to us and the statements made to us or included in the Registration Statement and the Base Prospectus, as supplemented by the Prospectus Supplement, by the Company and take no responsibility therefor. In the course of the preparation by the Company of the Registration Statement and the Base Prospectus, we had conferences with certain of its officers and representatives, with other counsel for the Company and with Deloitte & Touche LLP, the independent certified public accountants who examined certain of the financial statements included or incorporated by reference in the Registration Statement. Our examination of the Registration Statement and the Base Prospectus, as supplemented by the Prospectus Supplement, and our discussions in the above-mentioned

D-2

conferences did not cause us to believe that, at the effective date, the Registration Statement contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading or that the Base Prospectus, as supplemented by the Prospectus Supplement, as of the date of the Prospectus Supplement, contained any untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. Also, nothing has come to our attention in the course of our examination of the Registration Statement or the Prospectus or in our discussions in the above-mentioned conferences that has caused us to believe that the Prospectus, as of the date and time of the delivery of this letter, contained any untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. We do not express any views as to the financial statements or other financial data contained or incorporated by reference in the Registration Statement or the Prospectus.

We express no opinion as to the law of any jurisdiction other than the law of the State of New York and the federal laws of the United States. As to all matters of Idaho law and as to the matters set forth in paragraph 5 above, we have relied upon an opinion of even date herewith addressed to you by Robert W. Stahman, Esq., General Counsel for the Company. We are not passing upon matters relating to the incorporation of the Company, title to property, liens, licenses, franchises, water rights or conformity to the laws of the States of Idaho, Montana, Nevada, Oregon or Wyoming, or upon questions of the recording of, or the validity or priority of the lien of, the Mortgage.

Very truly yours,

LeBoeuf, Lamb, Greene & MacRae, L.L.P.

D-3

EXHIBIT E

_________, 20__

To the Agents referred to in the Selling Agency Agreement Relating to:

$250,000,000 Principal Amount of First Mortgage Bonds, Secured Medium- Term Notes, Series E, of Idaho Power Company

Ladies and Gentlemen:

In connection with the issuance and sale pursuant to the Selling Agency Agreement, dated April 15, 2003 (the "Agency Agreement"), between Idaho Power Company, an Idaho corporation (the "Company"), and you of up to $250,000,000 aggregate principal amount of the Company's First Mortgage Bonds, Secured Medium-Term Notes, Series E (the "Notes"), to be issued under an Indenture of Mortgage and Deed of Trust, dated as of October 1, 1937, between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company) and R.G. Page, as Trustees (Stanley Burg, successor individual trustee) (the "Trustees"), as supplemented by all indentures supplemental thereto, the latest such supplemental indenture being the Thirty-seventh Supplemental Indenture, dated as of April 1, 2003 between the Company and the Trustees (collectively, the "Mortgage"), I am the Company's General Counsel, and I am familiar with its legal status and that of its property. I am also familiar with the registration statement (File No. 333-103812) filed under the Securities Act of 1933, as amended (the "Act"), with the Securities and Exchange Commission (such registration statement as amended to the date of effectiveness, including the documents incorporated by reference therein as of such date pursuant to Item 12 of Form S-3 (the "Incorporated Documents") being hereinafter referred to as the "Registration Statement"), the prospectus, dated March 24, 2003 (the "Base Prospectus"), as supplemented by a prospectus supplement relating to the Notes, dated April 15, 2003 (the "Prospectus Supplement") (such prospectus, as so supplemented, including the incorporated documents, being hereinafter referred to as the "Prospectus"), the Agency Agreement and the Bond Application, dated April 15, 2003 for authentication and delivery of Notes in an aggregate principal amount not to exceed $250,000,000 (the "Bond Application"). Terms not otherwise defined herein shall have the meanings given to them in the Agency Agreement.

I have made such examination of corporate and other records and documents and of matters of law as in my opinion are necessary or desirable for the purpose of this opinion, and based thereon, I am of the opinion that:

(1) The Company has been duly incorporated and is validly existing and in good standing under the laws of the State of Idaho, and has full power and authority to own its properties and conduct its business in all material respects as described in the Prospectus as amended or supplemented;


(2) To the best of my knowledge and other than as set forth in the Prospectus as amended or supplemented, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any property of the Company or any of its subsidiaries is the subject which would individually or in the aggregate have a material adverse effect on the consolidated financial position or results of operations of the Company and its subsidiaries considered as a whole; and, to the best of my knowledge, no such proceedings are threatened or contemplated by governmental authorities or threatened by others;

(3) The Agency Agreement has been duly authorized, executed and delivered by the Company;

(4) The Notes, when issued and paid for as contemplated in the Agency Agreement and in an aggregate principal amount, which, together with all other first mortgage bonds issued and then outstanding under the Mortgage, after giving effect to the issuance and sale of any Notes and the retirement of any first mortgage bonds of the Company (including without limitation the Notes as well as any other first mortgage bonds previously issued by the Company under the Mortgage) that are concurrently being retired, does not exceed $900,000,000 or such other maximum amount as the Company may establish pursuant to Section 22 and 121 of the Mortgage, as supplemented and amended by all indentures supplemental thereto as of the date of the issuance of the Notes, will be legal, valid and binding obligations of the Company, enforceable in accordance with their terms and entitled to the benefit of the security provided by the Mortgage, subject to bankruptcy, insolvency, reorganization or other laws of general applicability relating to or affecting mortgagees' and other creditors' rights and to general principles of equity (whether considered in a proceeding at law or in equity); and the Notes and the Mortgage conform to the descriptions thereof in the Prospectus as amended or supplemented;

(5) The Mortgage has been duly authorized, executed and delivered by the Company and constitutes a valid lien to the extent that it purports to be one upon the property described therein as being subject to the lien thereof (except any which has been duly released from the lien thereof) and is a legal, valid and binding instrument, enforceable in accordance with its terms, subject to bankruptcy, insolvency, reorganization or other laws of general applicability relating to or affecting mortgagees' and other creditors' rights and to general principles of equity (whether considered in a proceeding at law or in equity); said Mortgage has been duly recorded and filed in such manner and in such places as are required by law in order to establish, preserve and protect the lien of said Mortgage;

(6) The issue and sale of the Notes in an aggregate principal amount not to exceed the amount set forth in the Bond Application and in an aggregate principal amount, which, together with all other first mortgage bonds issued and then outstanding under the Mortgage, after giving effect to the issuance and sale of any Notes and the retirement of any first mortgage bonds of the Company (including without limitation the Notes as well as any other first mortgage bonds previously issued by the Company under the Mortgage) that are concurrently being retired, does not exceed $900,000,000 or such other maximum amount as the Company may establish pursuant to Section 22 and 121 of the Mortgage, as supplemented and amended by all indentures supplemental thereto as of the date of the issuance of the Notes, and the compliance by the Company with all of the provisions of the Notes, the Mortgage and the Agency Agreement with respect to the Notes and the consummation of the transactions therein

E-2

contemplated will not conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company is a party or by which the Company is bound or to which any of the property or assets of the Company is subject, nor will such actions result in any violation of the provisions of the Restated Articles of Incorporation, as amended or By-laws, as amended, of the Company or any statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over the Company or any of its properties;

(7) The description of the Company's property in the Mortgage is adequate to constitute the Mortgage a lien thereon. The Company has good and marketable fee title to all real property upon which the Mortgage purports to create a lien, except water rights, leases, licenses, franchises, easements and other interests in real property of a similar nature, as to which it has good and valid title, in each case free and clear of all liens, charges and encumbrances other than excepted encumbrances as defined in the Mortgage and the lien of the Mortgage, subject to minor defects and clouds common to property of the size and character of that of the Company. Such minor defects and clouds are in my opinion not important and do not materially interfere with the operations of the Company or materially detract from the value of its property;

(8) The Company has such valid franchises, permits, licenses, easements and consents, free from burdensome restrictions, as are required by law for the operation of the Company's system and as are required for the adequate conduct of its business in the territory which it serves;

(9) The Registration Statement, as of its effective date, and the Base Prospectus, as supplemented by the Prospectus Supplement, as of the date of the Prospectus Supplement, complied as to form in all material respects with the requirements of the Act and the Securities Exchange Act of 1934, as amended, and the applicable instructions, rules and regulations of the Securities and Exchange Commission thereunder; the Registration Statement is effective under the Act; and, to the best of my knowledge, no proceedings for a stop order with respect thereto are pending or threatened under Section 8(d) of the Act; and

(10) All regulatory consents and approvals required to be obtained by the Company from any governmental body or bodies in connection with the Company's issuance and sale of the Notes in the manner set forth in the Agency Agreement have been obtained and are in effect, except that the order of the Idaho Public Utilities Commission grants authority to sell the Notes through March 17, 2005; it being understood that I express no opinion as to any consents or approvals required to be obtained, or other actions required to be taken, under state securities or Blue Sky laws of any jurisdiction.

I have no reason to believe that the Registration Statement, at the effective date, contained any untrue statement of a material fact or omitted to state any material fact required to be stated therein or necessary to make the statements therein not misleading or that the Base Prospectus, as supplemented by the Prospectus Supplement, as of the date of the Prospectus Supplement, contained any untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; it being understood that I express no views as to the financial

E-3

statements or other financial data contained or incorporated by reference in the Registration Statement or the Prospectus. Also, nothing has come to my attention in the course of my examination of the Registration Statement or the Prospectus that has caused me to believe that the Prospectus, as of the date and time of the delivery of this letter, contained any untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

Very truly yours,

Robert W. Stahman

E-4

Executed in 100 Counterparts of which this is Counterpart No. ___


IDAHO POWER COMPANY

TO

DEUTSCHE BANK TRUST COMPANY AMERICAS

AND

STANLEY BURG,

As Trustees under its Mortgage and Deed of
Trust dated as of October 1, 1937.


Thirty-seventh Supplemental Indenture providing among other things for Bonds of MTN Series E Dated as of April 1, 2003



TABLE OF CONTENTS\1

                                                                            Page
Parties and Recitals...........................................................1
Granting Clause and Property Description.......................................5

                 ARTICLE I Description of Bonds of MTN Series E

Section 1. General terms and redemption provisions.............................7
Section 2. Exchange and transfers of Bonds.....................................8
Section 3. Form of Bonds.......................................................9
Section 4. Temporary Bonds.....................................................9

                    ARTICLE II Issue of Bonds of MTN Series E

Section 5. Issue of Bonds......................................................9

                              ARTICLE III Covenants

Section 6. Application of Original Indenture...................................9
Section 7. Lawful ownership...................................................10
Section 8. Annual certificate as to defaults..................................10

                             ARTICLE IV The Trustees

Acceptance of trust...........................................................10
Recitals deemed made by the Company...........................................10

                       ARTICLE V Miscellaneous Provisions

Meanings of terms.............................................................10
Ratification and Confirmation.................................................11
Counterparts..................................................................11

Testimonium...................................................................12
Signatures and seals..........................................................12
Acknowledgments...............................................................14
Affidavits....................................................................17


---------------------------
1   This table of contents shall not have any bearing upon the interpretation of
    this Supplemental Indenture.

i

SUPPLEMENTAL INDENTURE, dated as of the first day of April, 2003, made and entered into by and between IDAHO POWER COMPANY, a corporation of the State of Idaho (successor by merger to Idaho Power Company, a corporation of the State of Maine, hereinafter sometimes called the "Maine Company"), whose address is 1221 West Idaho Street, Boise, Idaho 83702-5627 (hereinafter sometimes called the "Company"), party of the first part, and DEUTSCHE BANK TRUST COMPANY AMERICAS, formerly known as Bankers Trust Company, a corporation of the State of New York, whose post office address is 280 Park Avenue, 9th Floor, New York, NY 10017 (hereinafter sometimes called the "Corporate Trustee"), and Stanley Burg (hereinafter sometimes called the "Individual Trustee"), parties of the second part (the Corporate Trustee and the Individual Trustee being hereinafter together sometimes called the "Trustees"), as Trustees under the Mortgage and Deed of Trust dated as of October 1, 1937 hereinafter referred to; and

WHEREAS, the Maine Company has heretofore executed and delivered to the Trustees its Mortgage and Deed of Trust (hereinafter sometimes referred to as the "Original Indenture"), dated as of October 1, 1937, to secure the payment both of the principal of and interest and premium, if any, on all Bonds at any time issued and outstanding thereunder and to declare the terms and conditions upon which Bonds are to be issued thereunder; and

WHEREAS, the Maine Company was merged into the Company on June 30, 1989; and

WHEREAS, in order to evidence the succession of the Company to the Maine Company and the assumption by the Company of the covenants and conditions of the Maine Company in the Bonds and in the Original Indenture, as supplemented, contained, and to enable the Company to have and exercise the powers and rights of the Maine Company under the Original Indenture, as supplemented, in accordance with the terms thereof, the Company executed and delivered to the Trustees a Twenty-eighth Supplemental Indenture, dated as of June 30, 1989 (which supplemental indenture is hereinafter sometimes called the "Twenty-eighth Supplemental Indenture"); and

WHEREAS, said Twenty-eighth Supplemental Indenture was recorded in the records of the County of Elko, Nevada; the Counties of Baker, Grant, Harney, Malheur, Union and Wallowa, Oregon; the Counties of Ada, Adams, Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville, Butte, Camas, Canyon, Caribou, Cassia, Clark, Elmore, Gem, Gooding, Idaho, Jefferson, Jerome, Lemhi, Lincoln, Minidoka, Oneida, Owyhee, Payette, Power, Twin Falls, Valley and Washington, Idaho; the Counties of Lincoln and Sweetwater, Wyoming; and with the Secretary of State of Montana; and

WHEREAS, in accordance with the terms of the Original Indenture the Maine Company or the Company has executed and delivered to the Trustees the following supplemental indentures in addition to the Twenty-eighth Supplemental Indenture:


       Designation                                             Dated as of
First Supplemental Indenture                                July 1, 1939
Second Supplemental Indenture                               November 15, 1943
Third Supplemental Indenture                                February 1, 1947
Fourth Supplemental Indenture                               May 1, 1948
Fifth Supplemental Indenture                                November 1, 1949
Sixth Supplemental Indenture                                October 1, 1951
Seventh Supplemental Indenture                              January 1, 1957
Eighth Supplemental Indenture                               July 15, 1957
Ninth Supplemental Indenture                                November 15, 1957
Tenth Supplemental Indenture                                April 1, 1958
Eleventh Supplemental Indenture                             October 15, 1958
Twelfth Supplemental Indenture                              May 15, 1959
Thirteenth Supplemental Indenture                           November 15, 1960
Fourteenth Supplemental Indenture                           November 1, 1961
Fifteenth Supplemental Indenture                            September 15, 1964
Sixteenth Supplemental Indenture                            April 1, 1966
Seventeenth Supplemental Indenture                          October 1, 1966
Eighteenth Supplemental Indenture                           September 1, 1972
Nineteenth Supplemental Indenture                           January 15, 1974
Twentieth Supplemental Indenture                            August 1, 1974
Twenty-first Supplemental Indenture                         October 15, 1974
Twenty-second Supplemental Indenture                        November 15, 1976
Twenty-third Supplemental Indenture                         August 15, 1978
Twenty-fourth Supplemental Indenture                        September 1, 1979
Twenty-fifth Supplemental Indenture                         November 1, 1981
Twenty-sixth Supplemental Indenture                         May 1, 1982
Twenty-seventh Supplemental Indenture                       May 1, 1986
Twenty-ninth Supplemental Indenture                         January 1, 1990
Thirtieth Supplemental Indenture                            January 1, 1991
Thirty-first Supplemental Indenture                         August 15, 1991
Thirty-second Supplemental Indenture                        March 15, 1992
Thirty-third Supplemental Indenture                         April 1, 1993
Thirty-fourth Supplemental Indenture                        December 1, 1993
Thirty-fifth Supplemental Indenture                         November 1, 2000
Thirty-sixth Supplemental Indenture                         October 1, 2001

each of which is supplemental to the Original Indenture (the Original Indenture and all indentures supplemental thereto together being hereinafter sometimes referred to as the "Indenture"); and

WHEREAS, the Original Indenture and said Supplemental Indentures (except said Fifteenth Supplemental Indenture) have each been recorded in the records of the County of Elko, Nevada; the Counties of Baker, Grant, Harney, Malheur, Union and Wallowa, Oregon; the Counties of Ada, Adams, Bannock, Bear Lake, Bingham, Blaine, Boise, Bonneville, Butte, Camas, Canyon, Caribou, Cassia, Clark, Elmore, Gem, Gooding, Idaho, Jefferson, Jerome,

2

Lemhi, Lincoln, Minidoka, Oneida, Owyhee, Payette, Power, Twin Falls, Valley and Washington, Idaho; the Counties of Lincoln and Sweetwater, Wyoming; and with the Secretary of State of Montana; and

WHEREAS, the Maine Company or the Company has heretofore issued Bonds, under and in accordance with the terms of the Indenture in the following series and aggregate principal amounts:

                                                   Principal      Principal
                                                    Amount          Amount
                   Series                           Issued       Outstanding
                   ------                           ------       -----------
3-3/4% Series due 1967                             $18,000,000       None
3-1/8% Series due 1973                             18,000,000        None
2-3/4% Series due 1977                             5,000,000         None
3% Series due 1978                                 10,000,000        None
2-3/4% Series due 1979                             12,000,000        None
3-1/4% Series due 1981                             15,000,000        None
4-1/2% Series due 1987                             20,000,000        None
4-3/4% Series due 1987                             15,000,000        None
4% Series due April 1988                           10,000,000        None
4-1/2% Series due October 1988                     15,000,000        None
5% Series due 1989                                 15,000,000        None
4-7/8% Series due 1990                             15,000,000        None
4-1/2% Series due 1991                             10,000,000        None
5-1/4% Series due 1996                             20,000,000        None
6-1/8% Series due 1996                             30,000,000        None
7-3/4% Series due 2002                             30,000,000        None
8-3/8% Series due 2004                             35,000,000        None
10% Series due 2004                                50,000,000        None
8-1/2% Series due 2006                             30,000,000        None
9% Series due 2008                                 60,000,000        None
10-1/4% Series due 2003                            62,000,000        None
First Mortgage Bonds, 1984 Series                  10,100,000        None
16.10% Series due 1991-1992                        50,000,000        None
Pollution Control Series A                         49,800,000        49,800,000
8.65% Series due 2000                              80,000,000        None
9.50% Series due 2021                              75,000,000        None
9.52% Series due 2031                              25,000,000        None
8% Series due 2004                                 50,000,000        50,000,000
8 3/4% Series due 2027                             50,000,000        None
Secured Medium-Term Notes, Series A                190,000,000       160,000,000
Secured Medium-Term Notes, Series B                197,000,000       140,000,000
Secured Medium-Term Notes, Series C                200,000,000       200,000,000
Secured Medium-Term Notes, Series D                200,000,000       200,000,000

which bonds are hereinafter sometimes called bonds of the First through Thirty-third Series; and

3

WHEREAS, the Company, in accordance with the provisions of the Indenture and pursuant to appropriate resolutions of its Board of Directors, has duly determined to make, execute and deliver to the Trustees this Thirty-seventh Supplemental Indenture for the purposes herein provided, including the issuance of a Thirty-fourth Series of Bonds under the Indenture, in the aggregate principal amount of up to Two Hundred and Fifty Million Dollars ($250,000,000), to be designated as "First Mortgage Bonds, Secured Medium-Term Notes, Series E" (herein sometimes called the "Bonds of MTN Series E"); and

WHEREAS, it is also now desired, for the purpose of more effectually carrying out the purposes of the Original Indenture, to confirm specifically the subjection to the lien thereof and of the Indenture of the certain property acquired by the Company in addition to the property specifically described in the Original Indenture and in said First, Second, Third, Fourth, Fifth, Sixth, Seventh, Ninth, Tenth, Eleventh, Twelfth, Thirteenth, Fourteenth, Sixteenth, Seventeenth, Eighteenth, Nineteenth, Twenty-first, Twenty-second, Twenty-third, Twenty-fourth, Twenty-fifth, Twenty-sixth, Twenty-seventh, Twenty-eighth, Twenty-ninth, Thirtieth, Thirty-first, Thirty-second, Thirty-third, Thirty-fourth, Thirty-fifth and Thirty-sixth Supplemental Indentures; and

WHEREAS, all things necessary to make said Bonds of MTN Series E, when duly authenticated by the Corporate Trustee and issued by the Company, valid and legally binding obligations of the Company and to make the Original Indenture, as heretofore supplemented and as supplemented hereby, a valid and legally binding instrument for the security thereof, have been performed, and the execution and delivery of this Thirty-seventh Supplemental Indenture and the issue of said Bonds as in this Thirty-seventh Supplemental Indenture provided have been in all respects duly authorized:

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

That in consideration of the premises and of One Dollar to it duly paid by the Trustees at or before the ensealing and delivery of these presents, the receipt whereof is hereby acknowledged, and in order to secure the payment both of the principal of and interest and premium, if any, on all Bonds at any time issued and outstanding under the Indenture, according to their tenor and effect, and the performance of all the provisions of the Indenture and of said Bonds, the Company has duly executed and delivered to the Trustees this Thirty-seventh Supplemental Indenture and has granted, bargained, sold, released, conveyed, assigned, transferred, mortgaged, pledged, set over and confirmed and by these presents does grant, bargain, sell, release, convey, assign, transfer, mortgage, pledge, set over and confirm unto Stanley Burg and
(to the extent of its legal capacity to hold the same for the purposes hereof)
unto Deutsche Bank Trust Company Americas, as Trustees as aforesaid, and to their successor or successors in said trust, and to them and their successors, heirs and assigns forever, all property, whether real, personal or mixed (except any hereinafter expressly excepted), and wheresoever situated, acquired since the date of said Original Indenture by and now or hereafter owned by the Company including the following described properties, rights and interests in property (in addition to all other properties heretofore subjected to the lien of the Indenture and not heretofore released from the lien thereof)--that is to say:

4

PROPERTIES ACQUIRED OR CONSTRUCTED

GENERATING PLANTS

Danskin Power Plant Elmore County, Idaho

TRANSMISSION LINES & SYSTEMS

404 Norco Tap                   15 Miles added 138KV        Canyon County, Idaho
438 Stoddard Tap                3.80 Miles added 183 KV     Ada County, Idaho
447 Jerome Tap                  2.54 Miles added 138KV      Twin Falls County, Idaho
456 Joplin Loop                 27 Miles added 138KV        Ada County, Idaho
707 Boise Bench-Paddock Tap     2.13 Miles added 230KV      Washington County, Idaho
    Brownlee-Ontario            48.87 Miles added 230KV     Washington County, Idaho
712 Cloverdale-Locust Tap       4.37 Miles added 230KV      Ada County, Idaho
919 Danskin Loop                10 Miles added 138KV        Elmore County, Idaho

DISTRIBUTION LINES & SYSTEMS

34, 35, 36, 37 and 38 - Branches and extensions of the Company's Distribution Lines and Systems situated in the States of Idaho, Oregon and Nevada

SUBSTATIONS

Boulder Substation                                         Valley County, Idaho
Quartz South Baker                                         Baker County, Oregon
Norco Substation                                           Canyon County, Idaho
Joplin Substation                                          Ada County, Idaho
Rim View Fish Hatchery CSPP                                Gooding County, Idaho
Stoddard Substation                                        Ada County, Idaho

FRANCHISES

None

ALL OTHER LANDS, IMPROVEMENTS, BUILDINGS AND OTHER SUBSTATIONS

None

All other property, whether real, personal or mixed (except any hereinafter expressly excepted), and wheresoever situated, acquired since the date of said Original Indenture by and now or hereafter owned by the Company.

5

TOGETHER with all and singular the tenements, hereditaments and appurtenances belonging or in any wise appertaining to the aforesaid property or any part thereof, with the reversion and reversions, remainder and remainders, and (subject to the provisions of Section 57 of the Original Indenture) the tolls, rents, revenues, issues, earnings, income, product and profits thereof, and all the estate, right, title and interest and claim whatsoever, at law as well as in equity, which the Company now has or may hereafter acquire in and to the aforesaid property and franchises and every part and parcel thereof.

It is not intended herein or hereby to include in or subject to the lien of the Indenture, and the granting clauses hereof shall not be deemed to apply to, (1) any revenues, earnings, rents, issues, income or profits of the mortgaged and pledged property, or any bills, notes or accounts receivable, contracts or choses in action, except to the extent permitted by law in case a completed default specified in Section 65 of the Indenture shall have occurred and be continuing and either or both of the Trustees, or a receiver or trustee, shall have entered upon or taken possession of the mortgaged and pledged property, or (2) in any case, unless specifically subjected to the lien thereof, any bonds, notes, evidences of indebtedness, shares of stock, or other securities or any cash (except cash deposited with the Corporate Trustee pursuant to any provisions of the Indenture) or any goods, wares, merchandise, equipment or apparatus manufactured or acquired for the purpose of sale or resale in the usual course of business.

TO HAVE AND TO HOLD all such properties, real, personal and mixed, granted, bargained, sold, released, conveyed, assigned, transferred, mortgaged, pledged, set over or confirmed by the Company as aforesaid, or intended so to be, unto the Individual Trustee and (to the extent of its legal capacity to hold the same for the purposes hereof) unto the Corporate Trustee, and their successors, heirs and assigns forever;

IN TRUST, NEVERTHELESS, for the same purposes and upon the same terms, trusts and conditions and subject to and with the same provisions and covenants as are set forth in the Original Indenture, as amended or modified by said First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth, Thirteenth, Fourteenth, Fifteenth, Sixteenth, Seventeenth, Eighteenth, Nineteenth, Twentieth, Twenty-first, Twenty-second, Twenty-third, Twenty-fourth, Twenty-fifth, Twenty-sixth, Twenty-seventh, Twenty-eighth, Twenty-ninth, Thirtieth, Thirty-first, Thirty-second, Thirty-third, Thirty-fourth, Thirty-fifth and Thirty-sixth Supplemental Indentures and this Thirty-seventh Supplemental Indenture.

And it is hereby covenanted, declared and decreed by and between the parties hereto, for the benefit of those who shall hold the Bonds and interest coupons, or any of them, issued and to be issued under the Indenture, as follows:

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ARTICLE I

Description of Bonds of MTN Series E

Section 1. The Thirty-fourth Series of Bonds to be executed, authenticated and delivered under and secured by the Indenture shall be Bonds of MTN Series E, designated as "First Mortgage Bonds, Secured Medium-Term Notes, Series E" of the Company. The Bonds of MTN Series E shall be executed, authenticated and delivered in accordance with the provisions of, and shall in all respects be subject to, all of the terms, conditions and covenants of the Original Indenture, except insofar as the terms and provisions of the Original Indenture have been or are amended or modified by said First through Thirty-sixth Supplemental Indentures or by this Thirty-seventh Supplemental Indenture. Bonds of MTN Series E shall be issued from time to time in an aggregate principal amount not to exceed $250,000,000, be issued as registered Bonds without coupons in the denominations of $1,000 or in any multiple thereof; each Bond of MTN Series E shall mature on such date not less than nine months nor more than thirty years from date of issue, shall bear interest at such rate or rates (which may be either fixed or variable) and have such other terms and provisions not inconsistent with the Indenture as the Board of Directors may determine in accordance with a resolution filed with the Corporate Trustee and a written order referring to this Thirty-seventh Supplemental Indenture; the principal of and interest on each said Bond to be payable at the office or agency of the Company in the Borough of Manhattan, The City of New York and, at the option of the Company, interest on each said Bond may also be payable at the office of the Company in Boise, Idaho, in such coin or currency of the United States of America as at the time of payment is legal tender for public and private debts. Interest on Bonds of MTN Series E which bear interest at a fixed rate shall be payable semiannually on April 1 and October 1 of each year or on such other dates as set forth in a resolution filed with the Corporate Trustee referring to this Thirty-seventh Supplemental Indenture and at maturity or upon earlier redemption (each an interest payment date). Interest on Bonds of MTN Series E which bear interest at a variable rate shall be payable on the dates (each an interest payment date) set forth in a resolution filed with the Corporate Trustee referring to this Thirty-seventh Supplemental Indenture.

Notwithstanding the foregoing, so long as there is no existing default in the payment of interest on the Bonds of MTN Series E, all Bonds of MTN Series E authenticated by the Corporate Trustee after the Record Date hereinafter specified for any interest payment date, and prior to such interest payment date (unless the date of first authentication of Bonds of such designated interest rate and maturity is after such Record Date), shall be dated the date of authentication, but shall bear interest from such interest payment date, and the person in whose name any Bond of MTN Series E is registered at the close of business on any Record Date with respect to any interest payment date shall be entitled to receive the interest payable on such interest payment date, notwithstanding the cancellation of such Bond of MTN Series E, upon any transfer or exchange thereof subsequent to the Record Date and on or prior to such interest payment date. If the date of first authentication of the Bonds of MTN Series E of a designated interest rate and maturity is after such Record Date and prior to the corresponding interest payment date, such Bonds shall bear interest from the Original Interest Accrual Date but payment of interest shall commence on the second interest payment date succeeding the Original Interest Accrual Date. "Record Date" for Bonds of MTN Series E which bear interest at a fixed rate shall mean March 15 for interest payable April 1 and September 15 for interest payable

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October 1, for Bonds of MTN Series E which bear interest at a fixed rate that is payable on other dates, shall mean the last day of the calendar month preceding such interest payment date if such interest payment date is the fifteenth day of a calendar month and shall mean the fifteenth day of the calendar month preceding such interest payment date if such interest payment date is the first day of a calendar month, as determined by the Board of Directors and set forth in a resolution filed with the Corporate Trustee referring to this Thirty-seventh Supplemental Indenture; and for Bonds of MTN Series E which bear interest at a variable rate, the date 15 calendar days prior to any interest payment date, provided that, interest payable on the maturity date will be payable to the person to whom the principal thereof shall be payable. "Original Interest Accrual Date" with respect to Bonds of MTN Series E of a designated interest rate and maturity shall mean the date of first authentication of Bonds of such designated interest rate and maturity unless a written order filed with the Corporate Trustee on or before such date shall specify another date from which interest shall accrue, in which case "Original Interest Accrual Date" shall mean such other date specified in the written order for Bonds of such designated interest rate and maturity.

The Bonds of MTN Series E, in definitive form, shall be, at the option of the Company, fully engraved or shall be lithographed or printed on steel engraved borders or shall be partially lithographed or printed and partially engraved on steel borders or shall be printed on safety paper or shall be typewritten.

The holders of the Bonds of MTN Series E consent that the Company may, but shall not be obligated to, fix a record date for the purpose of determining the holders of Bonds of MTN Series E entitled to consent to any amendment, supplement or waiver. If a record date is fixed, those persons who are holders at such record date (or their duly designated proxies), and only those persons, shall be entitled to consent to such amendment, supplement or waiver or to revoke any consent previously given, whether or not such persons continue to be holders after such record date. No such consent shall be valid or effective for more than 90 days after such record date.

The Bonds of MTN Series E may be redeemable at the option of the Company (including without limitation redemptions by the application of cash deposited with the Corporate Trustee pursuant to Section 39 of the Indenture) in whole at any time, or in part from time to time, prior to maturity, as provided in Section 52 of the Indenture, upon giving notice of such redemption by first class mail, postage prepaid, by or on behalf of the Company at least thirty (30) days prior to the date fixed for redemption as the Board of Directors may determine in accordance with a resolution filed with the Corporate Trustee and a written order referring to this Thirty-seventh Supplemental Indenture.

Section 2. At the option of the registered holder, any Bonds of MTN Series E, upon surrender thereof for cancellation at the office or agency of the Company in the Borough of Manhattan, The City of New York, together with a written instrument of transfer (if so required by the Company or by the Trustees) in form approved by the Company duly executed by the registered holder or by his duly authorized attorney, shall be exchangeable for a like aggregate principal amount and maturity of Bonds of MTN Series E of other authorized denominations. Bonds of MTN Series E may bear such legends as may be necessary to comply with any law or with any rules or regulations made pursuant thereto or with the rules or regulations of any stock exchange or to conform to usage with respect thereto.

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Bonds of MTN Series E shall be transferable at the office or agency of the Company in the Borough of Manhattan, The City of New York.

Notwithstanding the foregoing provisions of this Section 2, the Company shall not be required to make any transfers or exchanges of Bonds of MTN Series E for a period of fifteen (15) days next preceding any mailing of notice of redemption, and the Company shall not be required to make transfers or exchanges of the principal amount of any Bonds of MTN Series E so called or selected for redemption.

Section 3. The Bonds of MTN Series E shall be substantially of the tenor and purport recited in the Original Indenture, and the form thereof shall be as established by resolution of the Board of Directors or the Executive Committee of the Board of Directors of the Company, which resolution may provide that any provisions of such form of Bond may appear on the reverse of such form.

Section 4. Until Bonds of MTN Series E in definitive form are ready for delivery, the Company may execute, and upon its request in writing, the Corporate Trustee shall authenticate and deliver, in lieu thereof, Bonds of MTN Series E in temporary form, as provided in Section 15 of the Original Indenture.

ARTICLE II

Issue of Bonds of MTN Series E.

Section 5. The Bonds of MTN Series E for the aggregate principal amount of up to Two Hundred Fifty Million Dollars ($250,000,000) may be executed by the Company and delivered to the Corporate Trustee and shall be authenticated by the Corporate Trustee and delivered to or upon the order or orders of the Company, evidenced by a writing or writings signed by the Company by its President or a Vice President and its Treasurer or an Assistant Treasurer, pursuant to and upon compliance with the provisions of Article V, Article VI or Article VII of the Indenture.

ARTICLE III

Covenants.

The Company hereby covenants, warrants and agrees:

Section 6. That all the terms, conditions, provisos, covenants and provisions contained in the Indenture shall affect and apply to the property hereinabove described and conveyed and to the estate, rights, obligations and duties of the Company and Trustees and the beneficiaries of the trust with respect to said property, and to the Trustees and their successors as trustees of said property, in the same manner and with the same effect as if the said property had been owned by the Company at the time of the execution of the Original Indenture and had been specifically and at length described in and conveyed to the Individual Trustee and (to the extent of its legal capacity to hold the same for the purposes of the Indenture) the Corporate Trustee by the Original Indenture as a part of the property therein stated to be conveyed.

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Section 7. That it is lawfully seized and possessed of all of the mortgaged and pledged property described in the granting clauses of the Indenture, which has not heretofore been released from the lien thereof; that it had or has, at the respective times of execution and delivery of the Original Indenture, the First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth, Thirteenth, Fourteenth, Fifteenth, Sixteenth, Seventeenth, Eighteenth, Nineteenth, Twentieth, Twenty-first (as corrected by the Twenty-second), Twenty-second, Twenty-third, Twenty-fourth, Twenty-fifth, Twenty-sixth, Twenty-seventh, Twenty-eighth, Twenty-ninth, Thirtieth, Thirty-first, Thirty-second, Thirty-third, Thirty-fourth, Thirty-fifth and Thirty-sixth Supplemental Indentures, and this Thirty-seventh Supplemental Indenture, good right and lawful authority to mortgage and pledge the mortgaged and pledged property described therein, as provided in and by the Indenture; and that such mortgaged and pledged property is, at the actual date of the initial issue of the Bonds of MTN Series E, free and clear of any mortgage, lien, charge or encumbrance thereon or affecting the title thereto (other than excepted encumbrances) prior to the lien of the Indenture, except as set forth in the granting clauses of the Indenture.

Section 8. That it will deliver to the Corporate Trustee annually, within ninety (90) days after the close of each fiscal year, commencing with the fiscal year 2003, a certificate from the principal executive officer, principal financial officer or principal accounting officer as to his or her knowledge of the Company's compliance with all conditions and covenants under the Indenture. For purposes of this Section 8, such compliance shall be determined without regard to any period of grace or requirement of notice provided under the Indenture.

ARTICLE IV

The Trustees.

The Trustees hereby accept the trust hereby declared and provided and agree to perform the same upon the terms and conditions in the Original Indenture, as heretofore supplemented and as supplemented by this Thirty-seventh Supplemental Indenture, and in this Thirty-seventh Supplemental Indenture set forth, and upon the following terms and conditions:

The Trustees shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Thirty-seventh Supplemental Indenture or the due execution hereof by the Company or for or in respect of the recitals contained herein, all of which recitals are made by the Company only.

ARTICLE V

Miscellaneous Provisions.

All terms contained in the Thirty-seventh Supplemental Indenture shall, for all purposes hereof, have the meanings given to such terms in Article I of the Original Indenture, as amended by Article IV of the Second Supplemental Indenture.

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Except as hereby expressly amended and supplemented, the Original Indenture heretofore amended and supplemented is in all respects ratified and confirmed, and all the terms and provisions thereof shall be and remain in full force and effect.

This Thirty-seventh Supplemental Indenture may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original; but such counterparts together constitute but one and the same instrument.

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IN WITNESS WHEREOF, Idaho Power Company, party hereto of the first part, caused its corporate name to be hereunto affixed and this instrument to be signed and sealed by its President or a Vice President and its corporate seal to be attested by its Secretary or an Assistant Secretary for and on its behalf, and Deutsche Bank Trust Company Americas, one of the parties hereto of the second part, in token of its acceptance of the trust hereby created has caused its corporate name to be hereunto affixed and this instrument to be signed and sealed by a Vice President and its corporate seal to be attested by an Associate and Stanley Burg, one of the parties hereto of the second part, has for all like purposes hereunto set his hand and affixed his seal, each on the date hereinafter acknowledged, as of the day and year first above written.

IDAHO POWER COMPANY

                                       By /s/ Darrel T. Anderson
                                         --------------------------------------
                                         Darrel T. Anderson
                                         Vice President, Chief Financial Officer
                                         and Treasurer
Attest:

/s/ Robert W. Stahman
-------------------------------
Robert W. Stahman
Secretary

Executed, sealed and delivered by
IDAHO POWER COMPANY
in the presence of:

/s/ Joanne M. Butler
-------------------------------

/s/ Teresa Meeker
-------------------------------

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DEUTSCHE BANK TRUST COMPANY AMERICAS

                                        By /s/ Susan Johnson
                                          --------------------------------------
                                          Susan Johnson
                                          Vice-President

Attest:

/s/ Dorothy Robinson
-------------------------------
Dorothy Robinson
Vice-President

Executed, sealed and delivered by
DEUTSCHE BANK TRUST COMPANY AMERICAS,
in the presence of:

/s/ David J. Rocco
-------------------------------

/s/ Teddy Banica
-------------------------------
Attest:

                                          /s/ Stanley Burg
                                          ------------------------------- [L.S.]
                                                    Stanley Burg

Executed, sealed and delivered by
STANLEY BURG,
in the presence of:

/s/ David J. Rocco
-------------------------------

/s/ Teddy Banica
-------------------------------

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STATE OF IDAHO  )
                ) ss.:
COUNTY OF ADA   )

               On the 11th day of April, in the year 2003, before me personally

came DARREL T. ANDERSON, to me known, who being by me duly sworn did depose and say that he resides at 1677 W. Spanish Bay Drive, Eagle, Idaho 83616; that he is the Vice President, Chief Financial Officer and Treasurer of Idaho Power Company, one of the corporations described in and which executed the above instrument; that he knows the seal of said corporation; that the seal affixed to said instrument is such corporate seal; that it was so affixed by order of the Board of Directors of said corporation, and that he signed his name thereto by like order; the said DARREL T. ANDERSON, having personally appeared and known to me to be the Vice President, Chief Financial Officer and Treasurer of said corporation that executed the instrument, acknowledged to me that said corporation executed the same.

IN WITNESS WHEREOF, I have hereunto subscribed my name and affixed my official seal the day and year in this certificate first above written.

/s/ Mary Gray
----------------------------------------
Mary Gray
Notary Public, State of Idaho
Commission expires July 17, 2004

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STATE OF NEW YORK )
) ss.:
COUNTY OF NEW YORK )

On the 11th day of April, in the year 2003, before me personally came Susan Johnson, to me known, who being by me duly sworn did depose and say that she resides at 154 East 46th Brooklyn, New York; that she is a Vice President of Deutsche Bank Trust Company Americas, one of the corporations described in and which executed the above instrument; that she knows the seal of said corporation; that the seal affixed to said instrument is such corporate seal; that it was so affixed by order of the Board of Directors of said corporation, and that she signed her name thereto by like order; the said Susan Johnson, having personally appeared and known to me to be a Vice President of said corporation that executed the instrument, acknowledged to me that said corporation executed the same.

IN WITNESS WHEREOF, I have hereunto subscribed my name and affixed my official seal the day and year in this certificate first above written.

/s/ Tracy A. Salzmann
----------------------------------------
Tracy A. Salzmann
Notary Public, State of New York
Registration #01SA6040727
Qualified in New York County
My Commission Expires April 24, 2006

15

STATE OF NEW YORK   )
                    ) ss.:
COUNTY OF NEW YORK  )

On the 11th day of April, in the year 2003, before me, Tracy A. Salzmann, a Notary Public in and for the State of New York in the County of New York, personally appeared and came STANLEY BURG, to me known and known to me to be the person described in and who executed the within and foregoing instrument and whose name is subscribed thereto and acknowledged to me that he executed the same.

IN WITNESS WHEREOF, I have hereunto subscribed my name and affixed my official seal the day and year in this certificate first above written.

/s/ Tracy A. Salzmann
----------------------------------------
Tracy A. Salzmann
Notary Public, State of New York
Registration #01SA6040727
Qualified in New York County
My Commission Expires April 24, 2006

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STATE OF IDAHO    )
                  ) ss.:
COUNTY OF ADA     )

               DARREL T. ANDERSON, being first duly sworn, upon oath, deposes

and says: that he is an officer, to wit, the Vice President, Chief Financial Officer and Treasurer of Idaho Power Company, a corporation, the mortgagor described in the foregoing indenture or mortgage, and makes this affidavit on behalf of said Idaho Power Company; that said indenture or mortgage is made in good faith without any design to hinder, delay or defraud creditors, to secure the indebtedness mentioned to be thereby secured.

/s/ Darrel T. Anderson
----------------------------------------

Subscribed and sworn to before me
this 11th day of April, 2003.

Mary Gray

/s/ Mary Gray
-------------------------------
Notary Public, State of Idaho
Commission expires July 17, 2004

17

STATE OF NEW YORK )
) ss.:
COUNTY OF NEW YORK )

Susan Johnson, being first duly sworn, upon oath, deposes and says: that she is an officer, to wit, a Vice President of Deutsche Bank Trust Company Americas, a corporation, one of the mortgagees and trustees named in the foregoing indenture or mortgage, and makes this affidavit on behalf of said Deutsche Bank Trust Company Americas; that said indenture or mortgage is made in good faith without any design to hinder, delay or defraud creditors, to secure the indebtedness mentioned or provided for therein.

/s/ Susan Johnson
----------------------------------------
Susan Johnson
Vice President

Subscribed and sworn to before me
this 11th day of April, 2003.

/s/ Tracy A. Salzmann
-------------------------------
Tracy A. Salzmann
Notary Public, State of New York
Registration #01SA6040727
Qualified in New York County
My Commission Expires April 24, 2006

18

STATE OF NEW YORK )
) ss.:
COUNTY OF NEW YORK )

STANLEY BURG, being first duly sworn, upon oath, deposes and says: that he is one of the mortgagees and trustees named in the foregoing indenture or mortgage; that said indenture or mortgage is made in good faith without any design to hinder, delay or defraud creditors, to secure the indebtedness mentioned or provided for therein.

/s/ Stanley Burg
----------------------------------------
Stanley Burg

Subscribed and sworn to before me
this 11th day of April, 2003.

/s/ Tracy A. Salzmann
-------------------------------
Tracy A. Salzmann
Notary Public, State of New York
Registration #01SA6040727
Qualified in New York County
My Commission Expires April 24, 2006

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