SEC Filing | Avista Corporation

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c32047_s3a

As filed with the Securities and Exchange Commission on May 17, 2004

Registration No. 333-64652

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form S-3

Pre-Effective Amendment No. 2

to
Registration Statement

under
the Securities Act of 1933

AVISTA CORPORATION

(Exact name of Registrant as specified in its charter)

Washington

(State or other jurisdiction of

incorporation or organization)

4931

(Primary Standard Industrial

Classification Code Number)

1411 East Mission Avenue

Spokane, Washington 99202

(509) 489-0500

(Address, including zip code, and telephone number, including area

code, of Registrant’s principal executive offices)

91-0462470

(I.R.S. Employer Identification

No.)

DAVID J. MEYER Vice President and Chief Counsel for Regulatory and Governmental Affairs Avista Corporation 1411 East Mission Avenue Spokane, Washington 99202 (509) 489-0500		J. ANTHONY TERRELL Dewey Ballantine LLP 1301 Avenue of the Americas New York, New York 10019 (212) 259-8000

(Name and address, including zip code, and telephone number, including area code, of agents for service)

It is respectfully requested that the Commission
send copies of all notices, orders and communications to:
John E. Baumgardner, Jr.
Sullivan & Cromwell LLP
125 Broad Street
New York, New York 10004

The information contained in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED MAY 17, 2004

PROSPECTUS

$349,635,000

AVISTA CORPORATION

Debt Securities

Common Stock
(no par value)

Avista Corporation may offer from time to time up to $349,635,000 in total amount of these securities at prices and on terms to be determined at the time of sale.

One or more supplements to this prospectus will indicate the terms of each offering of securities, including the offering price, and, with respect to each series of debt securities and each tranche within a series, the

series designation,
principal amount,
stated maturity date,
interest rate and interest payment dates,
initial public offering price,
provisions for redemption, if any, and
provisions for conversion, if any.

Outstanding shares of Avista Corp.’s Common Stock are listed on the New York Stock Exchange and the Pacific Stock Exchange under the symbol “AVA”. New shares of Common Stock will also be listed on those exchanges. Like the outstanding shares of Common Stock, the new shares will be issued and will trade with the related preferred share purchase rights.

Avista Corporation may sell the securities to or through underwriters, dealers or agents or directly to one or more purchasers.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this Prospectus is , 2004.

This prospectus incorporates by reference important business and financial information about Avista Corp. that is not included in or delivered with this prospectus. See “Where You Can Find More Information”. You may obtain copies of documents containing such information from us, without charge, by either calling or writing to us at:

Avista Corporation

Post Office Box 3727
Spokane, Washington 99220

Attention: Treasurer
Telephone: (509) 489-0500

TABLE OF CONTENTS

About This Prospectus	2	Description of Common Stock	26
Safe Harbor For Forward-Looking Statements	4	Where You Can Find More Information	31
Avista Corporation	6	Plan of Distribution	32
Use of Proceeds	7	Legal Matters	33
Description of the Bonds	7	Experts	33
Description of the Notes	16

We have not authorized anyone to give you any information other than this prospectus and the usual supplements to this prospectus. You should not assume that the information contained in this prospectus, any prospectus supplement or any document incorporated by reference in this prospectus is accurate as of any date other than the date mentioned on the cover page of those documents. We are not offering to sell the Securities (defined below) and we are not soliciting offers to buy the Securities in any jurisdiction in which offers are not permitted.

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that Avista Corporation filed with the Securities and Exchange Commission (the “SEC”), using the “shelf” registration process. Under this shelf registration process, we may, from time to time, sell the securities described in this prospectus in one or more offerings up to a total dollar amount of $349,635,000. This prospectus provides a general description of the securities we may offer. Each time we sell securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. That prospectus supplement may include or incorporate by reference a detailed and current discussion of any risk factors and will discuss any special considerations applicable to those securities, including the plan of distribution. The prospectus supplement may also add, update or change information contained in this prospectus. You should read both this prospectus and any prospectus supplement together with additional information described under “Where You Can Find More Information”. If there is any inconsistency between the information in this prospectus and any prospectus supplement, you should rely on the information contained in that prospectus supplement.

References in the prospectus to the term “we”, “us” or “Avista Corp.” or other similar terms mean Avista Corporation and its consolidated subsidiaries, unless we state otherwise or the context indicates otherwise.

We may use this prospectus to offer from time to time:

Secured bonds issued under a Mortgage and Deed of Trust, dated as of June 1, 1939 (the “Original Mortgage”) between Avista Corp. and Citibank, N.A., as trustee (the “Mortgage Trustee”); the Original Mortgage, as amended and supplemented from time to time, being hereinafter called the “Mortgage”. The secured bonds offered by this prospectus are hereinafter referred to as “Bonds”.
Unsecured notes, debentures or other debt securities issued under an Indenture, dated as of April 1, 1998 (the “Original Indenture”) between Avista Corp. and JPMorgan Chase Bank, as trustee (the “Indenture Trustee”); the Original Indenture, as amended and supplemented from time to time, being hereinafter called the “Indenture”. The unsecured notes, debentures and other debt securities

offered by this prospectus are hereinafter referred to as “Notes” and, together with the Bonds, are hereinafter referred to as “Debt Securities”.

Common Stock, no par value, of Avista Corporation, together with attached preferred share purchase rights (the “Common Stock”, and, together with the Debt Securities, the “Securities”).

For more detailed information about the Securities, you can read the exhibits to the registration statement. Those exhibits have been either filed with the registration statement or incorporated by reference to earlier SEC filings listed in the registration statement. See “Where You Can Find More Information”.

See page 4 for “Safe Harbor for Forward-Looking Statements”, which sets forth a warning regarding forward-looking information contained or incorporated by reference in this prospectus.

SAFE HARBOR FOR FORWARD-LOOKING STATEMENTS

We are including the following cautionary statements in this prospectus to make applicable, and to take advantage of, the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 for any forward-looking statements made by, or on behalf of, Avista Corp. Forward-looking statements include statements concerning plans, objectives, goals, strategies, projections of future events or performance, and underlying assumptions (many of which are based, in turn, upon further assumptions). Forward looking statements are all statements other than statements of historical fact including, without limitation, those that are identified by the use of words such as, but not limited to, “will”, “anticipates”, “seeks to”, “estimates”, “expects”, “intends”, “plans”, “predicts”, and similar expressions. From time to time, we may publish or otherwise make available forward-looking statements of this nature. All such subsequent forward-looking statements, whether written or oral and whether made by or on behalf of the Avista Corp., are also expressly qualified by these cautionary statements.

Such statements are inherently subject to a variety of risks and uncertainties that could cause actual results to differ materially from those expressed. Most of these uncertainties are beyond our control. Such risks and uncertainties include, among others:

changes in the utility regulatory environment in the individual states and provinces in which we operate and the United States and Canada in general. This can impact allowed rates of return, financings, or industry and rate structures;
the impact of regulatory and legislative decisions, including Federal Energy Regulatory Commission (“FERC”) price controls, and including possible retroactive price caps and resulting refunds;
the potential effects of any legislation or administrative rulemaking passed into law;
the impact from the potential formation of a Regional Transmission Organization and/or an Independent Transmission Company;
the impact from the implementation of the FERC’s proposed wholesale power market rules;
volatility and illiquidity in wholesale energy markets, including the availability and prices of purchased energy and demand for energy sales;
wholesale and retail competition (including but not limited to, electric retail wheeling and transmission costs);
future streamflow conditions that affect the availability of hydroelectric resources;
outages at any Avista Corp. owned generating facilities from any cause, including equipment failure;
unanticipated delays or changes in construction costs with respect to present or prospective facilities;
changes in weather conditions that can affect customer demand, result in natural disasters and/or disrupt energy delivery;
changes in industrial, commercial and residential growth and demographic patterns in our service territory;
the loss of significant customers and/or suppliers;
failure to deliver on the part of any parties from which we purchase and/or sell capacity or energy;

changes in the creditworthiness of customers and energy trading counterparties;
our ability to obtain financing through the issuance of debt and/or equity securities, which can be affected by various factors including our credit ratings, interest rate fluctuations and other capital market conditions;
changes in future economic conditions in our service territory and the United States in general, including inflation or deflation and monetary policy;
the potential for future terrorist attacks, particularly with respect to utility plant assets;
changes in tax rates and/or policies;
changes in, and compliance with, environmental and endangered species laws, regulations, decisions and policies, including present and potential environmental remediation costs;
the outcome of legal and regulatory proceedings concerning Avista Corp. or affecting directly or indirectly its operations, including the potential disallowance of previously deferred costs;
employee issues, including changes in collective bargaining unit agreements, strikes, work stoppages or the loss of key executives, as well as the ability to recruit and retain employees;
changes in actuarial assumptions and the return on assets with respect to our pension plan, which can impact future funding obligations, costs and pension plan liabilities;
increasing health care costs and the resulting effect on health insurance premiums paid for employees and on the obligation to provide post-retirement health care benefits; and
increasing costs of insurance, changes in coverage terms and the ability to obtain insurance.

Our expectations, beliefs and projections are expressed in good faith and are believed by us to have a reasonable basis including, without limitation, management’s examination of historical operating trends, data contained in our records and other data available from third parties. However, there can be no assurance that our expectations, beliefs, or projections will be achieved or accomplished. Furthermore, any forward-looking statement speaks only as of the date on which such statement is made. We undertake no obligation to update any forward-looking statement or statements to reflect events or circumstances that occur after the date on which such statement is made or to reflect the occurrence of unanticipated events. New factors emerge from time to time, and it is not possible for management to predict all such factors, nor can it assess the impact of each such factor on Avista Corp.’s business or the extent to which any such factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statement.

AVISTA CORPORATION

General

Avista Corp., which was incorporated in the State of Washington in 1889, is an energy company engaged in the generation, transmission and distribution of energy as well as other energy-related businesses. Our corporate headquarters are in Spokane, Washington, which serves as the Inland Northwest center for manufacturing, transportation, health care, education, communication, agricultural, financial and service businesses.

Avista Corp. has four business segments:

Avista Utilities;
Energy Marketing and Resource Management;
Avista Advantage, Inc. (“Avista Advantage”); and
Other.

Avista Utilities is an operating division of Avista Corp. comprising the regulated utility operations that started in 1889. Avista Capital, our wholly-owned subsidiary, is the parent company of all of the subsidiary companies in the non-utility business segments.

Avista Utilities

Avista Utilities generates, transmits and distributes electricity and distributes natural gas. Retail electric and natural gas customers include residential, commercial and industrial classifications. Avista Utilities also engages in wholesale purchases and sales of electric capacity and energy as part of its resource management and load-serving obligations.

Avista Utilities provides electric distribution and transmission as well as natural gas distribution services in a 26,000 square mile area in eastern Washington and northern Idaho with a population of approximately 850,000. It also provides natural gas distribution service in a combined 4,000 square mile area in northeast and southwest Oregon and the South Lake Tahoe region of California with a population of approximately 495,000. At the end of 2003, Avista Utilities supplied retail electric service to a total of approximately 325,000 customers and retail natural gas service to a total of approximately 298,000 customers across its entire service territory.

In addition to providing electric transmission and distribution services, Avista Utilities generates electricity from its owned facilities. Avista Utilities owns and operates eight hydroelectric projects, a wood-waste fueled generating station, a two-unit natural gas-fired combustion turbine (“CT”) generating facility and two small generating facilities. In addition, Avista Utilities has a 50 percent ownership interest in a combined-cycle natural gas-fired facility. Avista Utilities also owns a 15 percent share in a two-unit coal-fired generating facility and leases and operates a two-unit natural gas-fired CT generating facility. WP Funding LP, an entity that is included in our consolidated financial statements and included in the Avista Utilities business segment, owns the two-unit natural gas-fired CT generating facility that is leased by Avista Utilities. In addition to company-owned resources, Avista Utilities has a number of long-term power purchase and exchange contracts that increase its available resources.

Energy Marketing and Resource Management

The Energy Marketing and Resource Management business segment includes Avista Energy, Inc. (“Avista Energy”) and Avista Power, LLC (“Avista Power”), both subsidiaries of Avista Capital.

Avista Energy is an electricity and natural gas marketing, trading and resource management business, operating primarily within the Western Electricity Coordinating Council geographic area, which is comprised of eleven western states as well as the provinces of British Columbia and Alberta, Canada. Avista Energy focuses on optimization of combustion turbines and hydroelectric assets owned by other entities, long-term electric supply contracts, natural gas storage, and electric transmission and natural gas transportation arrangements. Avista Energy is also involved in trading electricity and natural gas, including derivative commodity instruments.

Avista Power is an investor in certain generation assets, primarily its 49 percent interest in a 270-megawatt natural gas-fired combustion turbine plant in northern Idaho (“Lancaster Project”), which commenced commercial operation in September 2001. All of the output from the Lancaster Project is contracted to Avista Energy through 2026.

Avista Advantage

Avista Advantage is a provider of utility bill processing, payment and information services to multi-site customers throughout North America. Avista Advantage’s solutions are designed to provide multi-site companies with critical and easy-to-access information that enables them to proactively manage and reduce their facility-related expenses.

Other

The Other business segment includes several subsidiaries, including Avista Ventures, Inc., Pentzer Corporation, Avista Development and certain other operations of Avista Capital. We continue to limit our future investment in the Other business segment. Over time as opportunities arise, we plan to dispose of assets and phase out of operations in the Other business segment.

Discontinued Operations

In July and September 2003, Avista Corp. announced total investments of $12.2 million by private equity investors in a new entity, ReliOn, Inc. (formerly AVLB, Inc.), which acquired the assets previously held by Avista Corp.’s fuel cell manufacturing and development subsidiary, Avista Labs. As such, these operations are reported as a discontinued operation. As of March 31, 2004, Avista Corp., through Avista Labs, had an ownership interest of approximately 17.5 percent in ReliOn, Inc., with the opportunity, but no further obligation, to fund or invest in this business.

Avista Communications, Inc. provided local dial tone, data transport, internet services, voice messaging and other telecommunications services to several communities in the western United States. In September 2001, we decided to dispose of substantially all of the assets of Avista Communications, Inc. The divestiture of operating assets was completed by the end of 2002.

USE OF PROCEEDS

Unless we indicate differently in a supplement to this prospectus, Avista Corp. intends to use the net proceeds from the issuance and sale of the Securities offered by this prospectus for any or all of the following purposes: (a) to fund Avista Utilities’ construction, facility improvement and maintenance programs, (b) to refinance maturing long-term debt, (c) to continue to fund retirements (through redemption, purchase or acquisition) of longer-term debt , (d) to repay short-term debt, (e) to accomplish other general corporate purposes permitted by law and (f) to reimburse Avista Corp.’s treasury for funds previously expended for any of these purposes.

DESCRIPTION OF THE BONDS

Avista Corp. may issue the Bonds in one or more series or tranches within a series. The terms of the Bonds will include those stated in the Mortgage and those made part of the Mortgage by the Trust Indenture Act. The following summary is not complete and is subject in all respects to the provisions of, and is qualified in its entirety by reference to, the Mortgage and the Trust Indenture Act. The Bonds,

together with all other debt securities outstanding under the Mortgage, are hereinafter called, collectively, the “Mortgage Securities”. Avista Corp. has filed the Mortgage, as well as a form of supplemental indenture to the Mortgage to establish a series of Bonds, as exhibits to the registration statement of which this prospectus is a part. Capitalized terms used under this heading which are not otherwise defined in this prospectus have the meanings set forth in the Mortgage. Wherever particular provisions of the Mortgage or terms defined in the Mortgage are referred to, those provisions or definitions are incorporated by reference as part of the statements made in this prospectus and those statements are qualified in their entirety by that reference. Sections 125 through 150 of the Mortgage appear in the first supplemental indenture to the Original Mortgage. References to article and section numbers, unless otherwise indicated, are references to article and section numbers of the Mortgage.

The registered holder of a Bond will be treated as the owner of it for all purposes. Only registered holders will have rights under the Mortgage.

The applicable prospectus supplements will describe the following terms of the Bonds of each series:

the title of the Bonds;
any limit upon the aggregate principal amount of the Bonds;
the date or dates on which the principal of the Bonds is payable or the method of determination thereof and the right, if any, to extend such date or dates;
(a) the rate or rates at which the Bonds will bear interest, if any, or the method by which such rate or rates, if any, will be determined, (b) the date or dates from which any such interest will accrue, (c) the interest payment dates on which any such interest will be payable, (d) the right, if any, of Avista Corp. to defer or extend an interest payment date, (e) the regular record date for any interest payable on any interest payment date and (f) the person or persons to whom the interest on the Bonds will be payable on any interest payment date, if other than the person or persons in whose names the Bonds are registered at the close of business on the regular record date for such interest;
any period or periods within which, or date or dates on which, the price or prices at which and the terms and conditions upon which the Bonds may be redeemed, in whole or in part, at the option of Avista Corp.;
(a) the obligation or obligations, if any, of Avista Corp. to redeem or purchase any of the Bonds pursuant to any sinking fund or other mandatory redemption provisions or at the option of the Holder, (b) the period or periods within which, or date or dates on which, the price or prices at which and the terms and conditions upon which the Bonds will be redeemed or purchased, in whole or in part, pursuant to such obligation, and (c) applicable exceptions to the requirements of a notice of redemption in the case of mandatory redemption or redemption at the option of the Holder;
the terms, if any, upon which the Bonds may be converted into other securities of Avista Corp.;
the denominations in which any of the Bonds will be issuable if other than denominations of $1,000 and any integral multiple of $1,000;
if the Bonds are to be issued in global form, the identity of the depositary; and
any other terms of the Bonds.

Payment and Paying Agents

Except as may be provided in the applicable prospectus supplement, Avista Corp. will pay interest, if any, on each Bond on each interest payment date to the person in whose name such Bond is registered (for purposes of this section of the prospectus, the registered holder of any Mortgage Security is herein referred to as a “Holder”) as of the close of business on the regular record date relating to such interest payment date; provided, however, that Avista Corp. will pay interest at maturity (whether at stated maturity, upon redemption or otherwise, “Maturity”) to the person to whom principal is paid.

Unless otherwise specified in the applicable prospectus supplement, Avista Corp. will pay the principal of and premium, if any, and interest, if any, on the Bonds at Maturity upon presentation of the Bonds at the corporate trust office of Citibank, N.A. in New York, New York, as paying agent for Avista Corp. Avista Corp. may change the place of payment of the Bonds, may appoint one or more additional paying agents (including Avista Corp.) and may remove any paying agent, all at its discretion.

Registration and Transfer

The transfer of Bonds may be registered, and Bonds may be exchanged for other Bonds, upon surrender thereof at the principal office of Citibank, N.A. which has been designated by Avista Corp. as its office or agency for such purposes. Avista Corp. may change such office or agency, and may designate an additional office or agency, in its discretion. No service charge will be made for any registration of transfer or exchange of Bonds, but Avista Corp. may require payment of a sum sufficient to cover any tax or other governmental charge incident thereto. Avista Corp. will not be required to make any transfer or exchange of any Bonds for a period of 10 days next preceding any selection of Bonds for redemption, nor will it be required to make transfers or exchanges of any Bonds which have been selected for redemption in whole or in part or as to which Avista Corp. shall have received a notice for the redemption thereof in whole or in part at the option of the Holder.

Redemption

The applicable prospectus supplement will indicate the extent, if any, to which the Bonds will be subject to (a) general redemption at the option of Avista Corp. or (b) special redemption by the application (either at the option of Avista Corp. or pursuant to the requirements of the Mortgage) of (x) cash deposited with the Mortgage Trustee as described under “Special Provisions for Retirement of Bonds” below or (y) cash deposited with the Mortgage Trustee in connection with the release of property from the lien of the Mortgage.

Notice of redemption will be given by mail not less than 30 days prior to the date fixed for redemption. (Mortgage, Sec. 52)

If less than all the Bonds of a series are to be redeemed, the particular Bonds to be redeemed will be selected by the Mortgage Trustee by lot, according to such method as it shall deem proper in its discretion. (Mortgage, Sec. 52)

Any notice of redemption at the option of Avista Corp. may state that such redemption will be conditional upon receipt by the Mortgage Trustee, on or before the date fixed for such redemption, of money sufficient to pay the principal of and premium, if any, and interest, if any, on such Bonds and that if such money has not been so received, such notice will be of no force or effect and Avista Corp. will not be required to redeem such Bonds. (Mortgage, Sec. 52)

Issuance of Additional Mortgage Securities

In addition to the Bonds, other debt securities may be issued under the Mortgage. The present principal amount of debt securities which may be outstanding under the Mortgage is $10,000,000,000. However, Avista Corp. has reserved the right to amend the Mortgage (without any consent of or other action of Holders of any Mortgage Securities now or hereafter outstanding) to remove this limitation.

Mortgage Securities of any series may be issued from time to time on the basis of:

70% of cost or fair value to Avista Corp. (whichever is less) of property additions which have not previously been made the basis of any application under the Mortgage and therefore do not constitute funded property after adjustments to offset property retirements;
an equal principal amount of Mortgage Securities which have been or are to be paid, redeemed or otherwise retired and have not previously been made the basis of any application under the Mortgage; or
deposit of cash.

Property additions generally include electric, natural gas, steam or water property acquired after May 31, 1939, but may not include property used principally for the production or gathering of natural gas. Any such property additions may be used if their ownership and operation is within the corporate purposes of Avista Corp. regardless of whether or not Avista Corp. has all the necessary permission it may need at any time from governmental authorities to operate such property additions.

The Mortgage provides that no reduction in the book value of the property recorded in the plant account of Avista Corp. shall constitute a property retirement, otherwise than in connection with physical retirements of property abandoned, destroyed or disposed of, and otherwise than in connection with the removal of such property in its entirety from the plant account.

The Holders of the Bonds will be deemed to have consented to an amendment to the provision of the Mortgage which requires that Avista Corp. deliver an opinion of counsel as to the status of the lien of the Mortgage on property additions being certified to the Mortgage Trustee. The amendment would permit us to deliver to the Mortgage Trustee, in lieu of such opinion, title insurance with respect to such property additions in an amount not less than 35% of the cost or fair value to Avista Corp. (whichever is less) of such property additions. Such amendment could not be made without the requisite consent of the Holders of outstanding Mortgage Securities as described under “—Modification”.

No Mortgage Securities may be issued on the basis of property additions subject to prior liens, unless the prior lien bonds secured thereby have been qualified by being deducted from the Mortgage Securities otherwise issuable and do not exceed 70% of such property additions, and unless the Mortgage Securities then to be outstanding which have been issued against property subject to continuing prior liens and certain other items would not exceed 15% of the Mortgage Securities outstanding.

The amount of prior liens on mortgaged property acquired after the date of delivery of the Mortgage may be increased subsequent to the acquisition of such property provided that, if any property subject to such prior lien shall have been made the basis of any application under the Mortgage, all the additional obligation are deposited with the Mortgage Trustee or other holder of a prior lien.

(Mortgage, Secs. 4 through 8, 20 through 30 and 46; First Supplemental, Sec. 2; Eleventh Supplemental, Sec. 5; Twelfth Supplemental, Sec. 1; Fourteenth Supplemental, Sec. 4; Seventeenth Supplemental, Sec. 3; Eighteenth Supplemental, Secs. 1, 2 and 6; Twenty-sixth Supplemental, Sec. 2; Twenty-ninth Supplemental, Art. II)

Net Earnings Test

In general, Avista Corp. may not issue Mortgage Securities on the basis of property additions or cash unless net earnings for 12 consecutive months out of the preceding 18 calendar months (before income taxes, depreciation and amortization of property, property losses and interest on any indebtedness and amortization of debt discount and expense) are at least twice the annual interest requirements on all Mortgage Securities at the time outstanding, including the additional issue, and on all indebtedness of prior rank.

Avista Corp. is not required to satisfy the net earnings requirement prior to the issuance of Mortgage Securities on the basis of retired Mortgage Securities unless

the annual interest requirements on the retired Mortgage Securities on the basis of which the new Mortgage Securities are to be issued have been excluded from a net earnings certificate delivered to the Mortgage Trustee since the retirement of such Mortgage Securities; or
the retired Mortgage Securities on the basis of which the new Mortgage Securities are to be issued mature by their terms at a date more than two years after the date for authentication and delivery of the new Mortgage Securities and the new Mortgage Securities bear interest at a higher rate than such retired Mortgage Securities.

In general, the Mortgage permits the inclusion of the following items in net earnings:

revenues collected or accrued subject to possible refund;
any portion of the allowance for funds used during construction; and
any portion of the allowance for funds used to conserve energy (or any analogous amount), which is not included in “other income” (or any analogous item) in Avista Corp.’s books of account.

The Mortgage also provides that, in calculating net earnings, no deduction from revenues or other income shall be made for

expenses or provisions for any non-recurring charge to income of whatever kind or nature (including without limitation the recognition of expense due to the non-recoverability of investment); or
provisions for any refund of revenues previously collected or accrued subject to possible refund.

In general, the interest rate requirement with respect to variable interest rate indebtedness, if any, is determined by reference to the rate or rates to be in effect at the time of the initial issuance. However, if any Mortgage Securities or prior ranking indebtedness bears interest at a variable rate, the annual interest requirements thereon shall be determined by reference to the rate or rates in effect on the date next preceding the date of the new issue of Mortgage Securities.

Security; Structural Subordination

The Bonds, together with all other Mortgage Securities now or hereafter issued under the Mortgage, will be secured by the Mortgage, which constitutes a first mortgage lien on Avista Corp.’s facilities for the generation, transmission and distribution of electric energy and the storage and distribution of natural gas and substantially all of Avista Corp.’s assets (except as stated below), subject to

leases of minor portions of Avista Corp.’s property to others for uses that do not interfere with Avista Corp.’s business;
leases of certain property of Avista Corp. not used in its utility business;
excepted encumbrances, as defined in the Mortgage; and
encumbrances, defects and irregularities deemed immaterial by Avista Corp. in the operation of Avista Corp.’s business.

There are excepted from the lien all cash and securities (including without limitation securities issued by Avista Corp.’s subsidiaries); merchandise, equipment, materials or supplies held for sale or consumption in Avista Corp.’s operations; receivables, contracts, leases and operating agreements;

electric energy, and other material or products (including gas) generated, manufactured, produced or purchased by Avista Corp., for sale, distribution or use in the ordinary course of its business. (Mortgage, Granting Clauses)

The Mortgage contains provisions for subjecting to the lien thereof all property (other than property of the kinds excepted from such lien) acquired by Avista Corp. after the execution and delivery thereof, subject to purchase money liens and liens existing thereon at the time of acquisition and, subject to limitations in the case of consolidation, merger or sale of substantially all of Avista Corp.’s assets. (Mortgage, Granting Clauses and Art. XV)

The Mortgage provides that the lien of the Mortgage shall not automatically attach to the properties of another corporation which shall have consolidated or merged with Avista Corp. in a transaction in which Avista Corp. shall be the surviving or resulting corporation. (Mortgage, Sec. 87)

The Mortgage provides that the Mortgage Trustee shall have a lien upon the mortgaged property, prior to the Mortgage Securities, for the payment of its reasonable compensation and expenses and for indemnity. (Mortgage, Secs. 92 and 97; First Supplemental, Art. XXV)

Although its utility operations are conducted directly by Avista Corp., all of the other operations of Avista Corp. are conducted through its subsidiaries. The lien of the Mortgage does not cover the assets of the subsidiaries or the securities of the subsidiaries held by Avista Corp. Any right of Avista Corp., as a shareholder, to receive assets of any of its direct or indirect subsidiaries upon such subsidiary’s liquidation or reorganization (and the right of the Holders of the Bonds and other creditors of Avista Corp. to participate in those assets) is junior to the claims against such assets of that subsidiary’s creditors. As a result, the obligations of Avista Corp. to the holders of the Bonds and other creditors are effectively subordinated in right of payment to all indebtedness and other liabilities and commitments (including trade payables and lease obligations) of Avista Corp.’s direct and indirect subsidiaries.

At December 31, 2003, $588.5 million of Mortgage Securities were outstanding. This amount includes $245 million of non-transferable Mortgage Securities which were issued in May 2003 to the agent bank under Avista Corp.’s primary credit facility in order to provide the benefit of the lien of the Mortgage to secure Avista Corp.’s obligations. The indebtedness under the credit facility (including the collateral Mortgage Securities) is included in Avista Corp.’s short-term debt.

Maintenance

The Mortgage provides that Avista Corp. will cause (or, with respect to property owned in common with others, make reasonable effort to cause) the mortgaged property to be maintained and kept in good repair, working order and condition, and will cause (or, with respect to property owned in common with others, make reasonable effort to cause) to be made such repairs, renewals and replacements of the mortgaged property as, in Avista Corp.’s sole judgment, may be necessary to operate the mortgaged property in accordance with common industry practice. Avista Corp. may discontinue, or cause or consent to the discontinuance of, the operation and maintenance of any of its properties if such discontinuance is, in the sole judgment of Avista Corp., desirable in the conduct of its business. (Mortgage, Sec. 38)

Special Provisions for Retirement of Bonds

If, during any 12-month period, any of the mortgaged property is taken by eminent domain and/or sold to any governmental authority and/or sold pursuant to an order of a governmental authority, with the result that Avista Corp. receives $15,000,000 or more in cash or in principal amount of purchase money obligations, Avista Corp. is required to apply such cash and the proceeds of such obligations (subject to certain conditions and deductions, and to the extent not otherwise applied) to the redemption of Mortgage Securities which are, by their, terms, redeemable before maturity by the application of such cash and proceeds. (Mortgage, Sec. 64; Tenth Supplemental, Sec. 4)

Release and Substitution of Property

Unless Avista Corp. is in default in the payment of the interest on any Mortgage Securities then outstanding under the Mortgage, or a Completed Default shall have occurred and is continuing, Avista Corp. may obtain the release from the lien of the Mortgage of any mortgaged property upon the deposit of cash equal to the amount, if any, that the fair value of the property to be released exceeds the aggregate of:

(1)	the principal amount of any obligations secured by purchase money mortgage upon the property released and delivered to the Mortgage Trustee;
(2)	the cost or fair value (whichever is less) of property additions which do not constitute funded property, after certain deductions and additions;
(3)	an amount equal to 10/7^thsof the principal amount of Mortgage Securities that Avista Corp. would be entitled to issue on the basis of retired securities (with such entitlement being waived by operation of such release); and
(4)	the principal amount of obligations secured by purchase money mortgage upon the property released, and/or an amount in cash delivered to the trustee or other holder of a lien prior to the lien of the Mortgage.

The use of obligations secured by purchase money mortgage as a credit in connection with the release of property, as described in clauses (1) and (4) above, is subject to the following limitations:

(1)

the aggregate credit which may be used as described in clauses (1) and (4) above in respect of any property being released may not exceed 70% of the fair value of such property; and

(2)

the aggregate principal amount of such obligations described in (1) and (4) above and all other obligations secured by purchase money mortgage delivered to the Mortgage Trustee pursuant to said clauses (1) and (4) and then held as part of the mortgaged property by the Mortgage Trustee or the trustee or other holder of a prior lien shall not exceed 40% of the aggregate principal amount of outstanding Mortgage Securities.

To the extent that property so released does not constitute funded property, the property additions used to effect the release will not, in certain cases, be deemed to constitute funded property, and the waiver of the right to issue Mortgage Securities to effect the release will, in certain cases, cease to be effective as such a waiver, all upon the satisfaction of certain conditions specified in the Mortgage. The Mortgage contains similar provisions as to cash proceeds of such property. The Mortgage also contains special provisions with respect to prior lien bonds pledged and disposition of moneys received on pledged bonds secured by a prior lien. (Mortgage, Secs. 5; 31, 32, 46 through 50, 59, 60, 61, 118 and 134)

Modification

Modifications Without Consent

Avista Corp. and the Mortgage Trustee may enter into one or more supplemental indentures without the consent of any Holders for any of the following purposes:

to evidence the succession of another corporation to Avista Corp. and the assumption by such successor of the covenants of Avista Corp. in the Mortgage and the Mortgage Securities;
to add additional covenants of Avista Corp. and additional defaults, which may be applicable only to the Mortgage Securities of specified series;
to correct the description of property subject to the lien of the Mortgage or to subject additional property to such lien;

to change or eliminate any provision of the Mortgage or to add any new provision to the Mortgage; provided, that no such change, elimination or addition shall adversely affect the interests of the Holders in any material respect;
to establish the form or terms of Mortgage Securities of any series;
to provide for procedures to utilize a non-certificated system of registration for all or any series of Mortgage Securities;
to change any place or places for payment, registration of transfer or exchange, or notices to and demands upon Avista Corp., with respect to all or any series of Mortgage Securities;
to increase or decrease the maximum principal amount of Mortgage Securities issuable under the Mortgage;
to make any other changes which do not adversely affect interests of the Holders in any material respect; or
to evidence any change required or permitted under the Trust Indenture Act of 1939, as amended.

(Mortgage, Sec. 120; Twenty-sixth Supplemental Indenture, Sec. 2; Twenty-ninth Supplemental Indenture, Article II)

Modification With Consent

In general, the Mortgage, the rights and obligations of Avista Corp. and the rights of the Holders may be modified with the consent of 60% in principal amount of the Mortgage Securities outstanding, and, if less than all series of Mortgage Securities are affected, the consent also of 60% in principal amount of the Mortgage Securities of each series affected. However, no modification of the terms of payment of principal or interest, and no modification affecting the lien or reducing the percentage required for modification, is effective against any Holder without its consent. (Mortgage, Art. XVIII, Sec. 149; First Supplemental, Sec. 10)

Satisfaction and Discharge

Mortgage Securities will be deemed to have been paid for purposes of satisfaction of the lien of the Mortgage if there shall have been irrevocably deposited with the Mortgage Trustee for the payment or redemption of such Mortgage Securities:

money in an amount which will be sufficient,
Government Obligations, none of which shall contain provisions permitting the redemption thereof at the option of the issuer thereof, the principal of and the interest on which when due, and without regard to reinvestment thereof, will provide moneys which will be sufficient, or
a combination of money and Government Obligations which will be sufficient,

to pay when due the principal of, premium, if any, and interest due and to become due on all outstanding Mortgage Securities on the maturity date or redemption date of such Mortgage Securities. For this purpose, “Government Obligations” include direct obligations of the government of the United States or obligations guaranteed by the government of the United States. (Mortgage, Sec. 106)

The Mortgage Trustee may, and upon request of Avista Corp. shall, cancel and discharge the lien of the Mortgage and reconvey the Mortgaged Property to Avista Corp. whenever all indebtedness secured thereby has been paid.

The right of Avista Corp. to cause its entire indebtedness in respect of the Mortgage Securities of any series to be deemed to be satisfied and discharged as described above will be subject to the satisfaction of conditions specified in the instrument creating such series.

Completed Defaults

Any of the following events will constitute a “Completed Default” under the Mortgage:

failure to pay principal of, or premium, if any, on any Mortgage Security when due;
failure to pay interest on any Mortgage Security within sixty (60) days after the same becomes due;
failure to pay interest on, or principal of, any qualified prior lien bonds beyond any grace period specified in the prior lien securing such prior lien bond;
certain events relating to bankruptcy, insolvency or reorganization of Avista Corp.; and
failure to perform, or breach of, any other covenants of Avista Corp. for a period of 90 days after notice to us from the Mortgage Trustee.

The Mortgage Trustee may withhold notice of default (except in payment of principal, interest or funds for retirement of Mortgage Securities) if it determines that it is in the interest of the Holders. (Mortgage, Secs. 44, 65 and 135)

Remedies

Acceleration of Maturity

If a Completed Default occurs and is continuing, the Mortgage Trustee may, and upon written request of the Holders of a majority in principal amount of Mortgage Securities then outstanding shall, declare the principal of, and accrued interest on, all outstanding Mortgage Securities immediately due and payable; provided, however, that the Holders of a majority in principal amount of outstanding Mortgage Securities may annul such declaration if before any sale of the mortgaged property:

all agreements with respect to which default shall have been made shall be fully performed or otherwise cured; and
all overdue interest and all reasonable expenses of the Mortgage Trustee, its agents and attorneys shall have been paid by Avista Corp., except for the principal of any Mortgage Securities that would not have been due except for such acceleration.

(Mortgage, Sec. 65)

Possession of Mortgaged Property

Under certain circumstances and to the extent permitted by law, if a Completed Default occurs and is continuing, the Mortgage Trustee has the power to take possession of, and to hold, operate and manage, the mortgaged property, or with or without entry, sell the mortgaged property. If the mortgaged property is sold, whether by the Mortgage Trustee or pursuant to judicial proceedings, the principal of the outstanding Mortgage Securities, if not previously due, will become immediately due. (Mortgage, Secs. 66, 67 and 71)

Right to Direct Proceedings

If a Completed Default occurs and is continuing, the Holders of a majority in principal amount of the Mortgage Securities then outstanding will have the right to direct the time, method and place of conducting any proceedings to be taken for any sale of the mortgaged property, the foreclosure of the Mortgage, or for the appointment of a receiver or any other proceeding under the Mortgage, provided that such direction does not conflict with any rule of law or with the Mortgage. (Mortgage, Sec. 69)

No Impairment of Right to Receive Payment

Notwithstanding any other provision of the Mortgage, the right of any Holder to receive payment of the principal of and interest on such Mortgage Security, or to institute suit for the enforcement of any such payment, shall not be impaired or affected without the consent of such Holder. (Mortgage, Sec. 148)

Notice of Default

No Holder may enforce the lien of the Mortgage unless such Holder shall have given the Mortgage Trustee written notice of a Completed Default and unless the Holders of 25% in principal amount of the Mortgage Securities have requested the Mortgage Trustee in writing to act and have offered the Mortgage Trustee adequate security and indemnity and a reasonable opportunity to act. (Mortgage, Sec. 79)

Remedies Limited by State Law

The laws of the various states in which the property subject to the lien of the Mortgage is located may limit or deny the ability of the Mortgage Trustee and/or the Holders to enforce certain rights and remedies provided in the Mortgage in accordance with their terms.

Concerning the Mortgage Trustee

The Mortgage Trustee has, and is subject to, all the duties and responsibilities specified with respect to an indenture trustee under the Trust Indenture Act of 1939, as amended. Subject to such provisions, the Mortgage Trustee is not under any obligation to take any action in respect of any default or otherwise, or toward the execution or enforcement of any of the trusts created by the Mortgage, or to institute, appear in or defend any suit or other proceeding in connection therewith, unless requested in writing so to do by the Holders of a majority in principal amount of the Mortgage Securities then outstanding. Anything in the Mortgage to the contrary notwithstanding, the Mortgage Trustee is under no obligation or duty to perform any act thereunder (other than the delivery of notices) or to institute or defend any suit in respect hereof, unless properly indemnified to its satisfaction. (Mortgage, Sec. 92)

The Mortgage Trustee may at any time resign and be discharged of the trusts created by the Mortgage by giving written notice to Avista Corp. and thereafter publishing notice thereof, specifying a date when such resignation shall take effect, as provided in the Mortgage, and such resignation shall take effect upon the day specified in such notice unless a successor trustee shall have previously been appointed by the Holders or Avista Corp. and in such event such resignation shall take effect immediately upon the appointment of such successor trustee. The Mortgage Trustee may be removed at any time by the Holders of a majority in principal amount of the Mortgage Securities then outstanding. (Mortgage, Secs. 100 and 101)

If Avista Corp. appoints a successor trustee and such successor trustee has accepted the appointment, the Mortgage Trustee will be deemed to have resigned as of the date of such successor trustee’s acceptance. (Mortgage, Sec. 102)

Evidence of Compliance with Mortgage Provisions

Compliance with provisions of the Mortgage is evidenced by written statements of Avista Corp.’s officers or persons selected or paid by Avista Corp. In certain matters, statements must be made by an independent accountant or engineer. Various certificates and other papers are required to be filed annually and upon the happening of certain events, including an annual certificate with reference to compliance with the terms of the Mortgage and absence of Completed Defaults.

DESCRIPTION OF THE NOTES

Avista Corp. may issue the Notes in one or more series, or in one or more tranches within a series, under the Indenture. The terms of the Notes will include those stated in the Indenture and those

made part of the Indenture by the Trust Indenture Act. The following summary is not complete and is subject in all respects to the provisions of, and is qualified in its entirety by reference to, the Indenture and the Trust Indenture Act. The Notes, together with all other debt securities outstanding under the Indenture, are hereinafter called, collectively, the “Indenture Securities”. Avista Corp. has filed the Indenture, as well as a form of officer’s certificate to establish a series of Notes, as exhibits to the registration statement of which this prospectus is a part. Capitalized terms used under this heading which are not otherwise defined in this prospectus have the meanings set forth in the Indenture. Wherever particular provisions of the Indenture or terms defined in the Indenture are referred to, those provisions or definitions are incorporated by reference as part of the statements made in this prospectus and those statements are qualified in their entirety by that reference. References to article and section numbers, unless otherwise indicated, are references to article and section numbers of the Indenture.

The applicable prospectus supplement or prospectus supplements will describe the following terms of the Notes of each series or tranche:

the title of the Notes;
any limit upon the aggregate principal amount of the Notes;
the date or dates on which the principal of the Notes is payable or the method of determination thereof and the right, if any, to extend such date or dates;
(a) the rate or rates at which the Notes will bear interest, if any, or the method by which such rate or rates, if any, will be determined, (b) the date or dates from which any such interest will accrue, (c) the interest payment dates on which any such interest will be payable, (d) the right, if any, of Avista Corp. to defer or extend an interest payment date, (e) the regular record date for any interest payable on any interest payment date and (f) the person or persons to whom interest on the Notes will be payable on any interest payment date, if other than the person or persons in whose names the Notes are registered at the close of business on the regular record date for such interest;
any period or periods within which, or date or dates on which, the price or prices at which and the terms and conditions upon which the Notes may be redeemed, in whole or in part, at the option of Avista Corp.;
(a) the obligation or obligations, if any, of Avista Corp. to redeem or purchase any of the Notes pursuant to any sinking fund or other mandatory redemption provisions or at the option of the Holder, (b) the period or periods within which, or date or dates on which, the price or prices at which and the terms and conditions upon which the Notes will be redeemed or purchased, in whole or in part, pursuant to such obligation, and (c) applicable exceptions to the requirements of a notice of redemption in the case of mandatory redemption or redemption at the option of the Holder;
the denominations in which any of the Notes will be issuable if other than denominations of $1,000 and any integral multiple of $1,000;
if the Notes are to be issued in global form, the identity of the depositary;
the terms, if any, upon which the Notes may be converted into other securities of Avista Corp.; and
any other terms of the Notes

Payment and Paying Agents

Except as may be provided in the applicable prospectus supplement, Avista Corp. will pay interest, if any, on each Note on each interest payment date to the person in whose name such Note is

registered (for the purposes of this section of the prospectus, the registered holder of any Indenture Security is herein referred to as a “Holder”) as of the close of business on the regular record date relating to such interest payment date; provided, however, that Avista Corp. will pay interest at maturity (whether at stated maturity, upon redemption or otherwise, “Maturity”) to the person to whom principal is paid. However, if there has been a default in the payment of interest on any Note, such defaulted interest may be payable to the Holder of such Note as of the close of business on a date selected by the Indenture Trustee which is not more than 30 days and not less than 10 days before the date proposed by Avista Corp. for payment of such defaulted interest or in any other lawful manner not inconsistent with the requirements of any securities exchange on which such Note may be listed, if the Indenture Trustee deems such manner of payment practicable. (Indenture, Sec. 307)

Unless otherwise specified in the applicable prospectus supplement, Avista Corp. will pay the principal of and premium, if any, and interest, if any, on the Notes at Maturity upon presentation of the Notes at the corporate trust office of JPMorgan Chase Bank in New York, New York, as paying agent for Avista Corp. Avista Corp. may change the place of payment of the Notes, may appoint one or more additional paying agents (including Avista Corp.) and may remove any paying agent, all at its discretion. (Indenture, Sec. 502)

Registration and Transfer

Unless otherwise specified in the applicable prospectus supplement, Holders may register the transfer of Notes, and may exchange Notes for other Notes of the same series and tranche, of authorized denominations and having the same terms and aggregate principal amount, at the corporate trust office of JPMorgan Chase Bank in New York, New York, as security registrar for the Notes. Avista Corp. may change the place for registration of transfer and exchange of the Notes, may appoint one or more additional security registrars (including Avista Corp.) and may remove any security registrar, all at its discretion. (Indenture, Sec. 502)

Except as otherwise provided in the applicable prospectus supplement, no service charge will be made for any transfer or exchange of the Notes, but Avista Corp. may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of the Notes. Avista Corp. will not be required to execute or to provide for the registration of transfer or the exchange of (a) any Note during a period of 15 days before giving any notice of redemption or (b) any Note selected for redemption in whole or in part, except the unredeemed portion of any Note being redeemed in part. (Indenture, Sec. 305)

Redemption

The applicable prospectus supplement will set forth any terms for the optional or mandatory redemption of Notes. Except as otherwise provided in the applicable prospectus supplement with respect to Notes redeemable at the option of the Holder, Notes will be redeemable by Avista Corp. only upon notice by mail not less than 30 nor more than 60 days before the date fixed for redemption. If less than all the Notes of a series, or any tranche thereof, are to be redeemed by Avista Corp., the particular Notes to be redeemed will be selected by such method as shall be provided for such series or tranche, or in the absence of any such provision, by such method of random selection as the Security Registrar deems fair and appropriate. (Indenture, Secs. 403 and 404)

Any notice of redemption at the option of Avista Corp. may state that such redemption will be conditional upon receipt by the paying agent or agents, on or before the date fixed for such redemption, of money sufficient to pay the principal of and premium, if any, and interest, if any, on such Notes and that if such money has not been so received, such notice will be of no force or effect and Avista Corp. will not be required to redeem such Notes. (Indenture, Sec. 404)

Unsecured Obligations; Structural Subordination

The Indenture is not a mortgage or other lien on assets of Avista Corp. or its subsidiaries. In addition to the Notes, other debt securities may be issued under the Indenture, without any limit on the aggregate principal amount. Each series of Indenture Securities will be unsecured and will rank pari passu with all other series of Indenture Securities, except as otherwise provided in the Indenture, and with all other unsecured and unsubordinated indebtedness of Avista Corp. Except as otherwise described in the applicable prospectus supplement, the Indenture does not limit the incurrence or issuance by Avista Corp. of other secured or unsecured debt, whether under the Indenture, under any other indenture that Avista Corp. may enter into in the future or otherwise.

Although its utility operations are conducted directly by Avista Corp., all of the other operations of Avista Corp. are conducted through its subsidiaries. Any right of Avista Corp., as a shareholder, to receive assets of any of its direct or indirect subsidiaries upon the subsidiary’s liquidation or reorganization (and the right of the Holders and other creditors of Avista Corp. to participate in those assets) is junior to the claims against such assets of that subsidiary’s creditors. As a result, the obligations of Avista Corp. to the Holders and other creditors are effectively subordinated in right of payment to all indebtedness and other liabilities and commitments (including trade payables and lease obligations) of Avista Corp.’s direct and indirect subsidiaries.

Satisfaction And Discharge

Any Indenture Securities, or any portion of the principal amount thereof, will be deemed to have been paid for purposes of the Indenture and, at Avista Corp.’s election, the entire indebtedness of Avista Corp. in respect thereof will be deemed to have been satisfied and discharged, if there shall have been irrevocably deposited in trust with the Indenture Trustee or any paying agent (other than Avista Corp.):

money in an amount which will be sufficient, or
in the case of a deposit made before the maturity of such Indenture Securities, Eligible Obligations, which do not contain provisions permitting the redemption or other prepayment thereof at the option of the issuer thereof, the principal of and the interest on which when due, without any regard to reinvestment thereof, will provide moneys which, together with the money, if any, deposited with or held by the Indenture Trustee or such Paying Agent, will be sufficient, or
a combination of money and Eligible Obligations which will be sufficient,

to pay when due the principal of and premium, if any, and interest, if any, due and to become due on such Indenture Securities. For this purpose, “Eligible Obligations” include direct obligations of, or obligations unconditionally guaranteed by, the United States, entitled to the benefit of the full faith and credit thereof and certificates, depositary receipts or other instruments which evidence a direct ownership interest in such obligations or in any specific interest or principal payments due in respect thereof and such other obligations or instruments as shall be specified in an accompanying prospectus supplement. (Indenture, Sec. 601)

The right of Avista Corp. to cause its entire indebtedness in respect of the Indenture Securities of any series to be deemed to be satisfied and discharged as described above will be subject to the satisfaction of conditions specified in the instrument creating such series.

The Indenture will be deemed to have been satisfied and discharged when no Indenture Securities remain outstanding thereunder and Avista Corp. has paid or caused to be paid all other sums payable by Avista Corp. under the Indenture. (Indenture, Sec. 602)

Events of Default

Any one or more of the following events with respect to a series of Indenture Securities that has occurred and is continuing will constitute an “Event of Default” with respect to such series of Indenture Securities:

failure to pay interest on any Indenture Security of such series within 60 days after the same becomes due and payable; provided, however, that no such failure shall constitute an Event of Default if Avista Corp. has made a valid extension of the interest payment period with respect to the Indenture Securities of such series if so provided with respect to such series;
failure to pay the principal of or premium, if any, on any Indenture Security of such series within 3 business days after its Maturity; provided, however, that no such failure will constitute an Event of Default if Avista Corp. has made a valid extension of the Maturity of the Indenture Securities of such series, if so provided with respect to such series;
failure to perform, or breach of, any covenant or warranty of Avista Corp. contained in the Indenture for 90 days after written notice to Avista Corp. from the Indenture Trustee or to Avista Corp. and the Indenture Trustee by the Holders of at least 25% in principal amount of the outstanding Indenture Securities of such series as provided in the Indenture unless the Indenture Trustee, or the Indenture Trustee and the Holders of a principal amount of Indenture Securities of such series not less than the principal amount of Indenture Securities the Holders of which gave such notice, as the case may be, agree in writing to an extension of such period before its expiration; provided, however, that the Indenture Trustee, or the Indenture Trustee and the Holders of such principal amount of Indenture Securities of such series, as the case may be, will be deemed to have agreed to an extension of such period if corrective action is initiated by Avista Corp. within such period and is being diligently pursued;
default under any bond, debenture, note or other evidence of indebtedness of Avista Corp. for borrowed money (including Indenture Securities of other series) or under any mortgage, indenture, or other instrument to evidence any indebtedness of Avista Corp. for borrowed money, which default (1) constitutes a failure to make any payment in excess of $5,000,000 of the principal of, or interest on, such indebtedness or (2) has resulted in such indebtedness in an amount in excess of $10,000,000 becoming or being declared due and payable prior to the date it would otherwise have become due and payable, without such payment having been made, such indebtedness having been discharged, or such acceleration having been rescinded or annulled, within a period of 90 days after written notice to Avista Corp. by the Indenture Trustee or to Avista Corp. and the Indenture Trustee by the Holders of at least 25% in principal amount of the outstanding Securities of such series as provided in the Indenture; or
certain events in bankruptcy, insolvency or reorganization of Avista Corp. (Indenture, Sec. 701)

Remedies

Acceleration of Maturity

If an Event of Default applicable to the Indenture Securities of any series occurs and is continuing, then either the Indenture Trustee or the Holders of not less than 33% in aggregate principal amount of the outstanding Indenture Securities of such series may declare the principal amount (or, if any of the outstanding Indenture Securities of such series are Discount Securities, such portion of the principal amount thereof as may be specified in the terms thereof) of all of the outstanding Indenture Securities of such series to be due and payable immediately by written notice to Avista Corp. (and to the Indenture Trustee if given by the Holders); provided, however, that if an Event of Default occurs and is continuing

with respect to more than one series of Indenture Securities, the Indenture Trustee or the Holders of not less than 33% in aggregate principal amount of the outstanding Indenture Securities of all such series, considered as one class, may make such declaration of acceleration and not the Holders of any one such series.

At any time after such a declaration of acceleration with respect to the Indenture Securities of any series has been made, but before a judgment or decree for payment of the money due has been obtained, such declaration and its consequences will, without further act, be deemed to have been rescinded and annulled, if

Avista Corp. has paid or deposited with the Indenture Trustee a sum sufficient to pay

all overdue interest, if any, on all Indenture Securities of such series;
the principal of and premium, if any, on any Indenture Securities of such series which have become due otherwise than by such declaration of acceleration and interest, if any, thereon at the rate or rates prescribed therefor in such Indenture Securities;
interest, if any, upon overdue interest, if any, at the rate or rates prescribed therefor in such Indenture Securities, to the extent that payment of such interest is lawful; and
all amounts due to the Indenture Trustee under the Indenture in respect of compensation and reimbursement of expenses; and

all Events of Default with respect to Indenture Securities of such series, other than the non-payment of the principal of the Indenture Securities of such series which has become due solely by such declaration of acceleration, have been cured or waived as provided in the Indenture. (Indenture, Sec. 702)

Right to Direct Proceedings

If an Event of Default with respect to the Indenture Securities of any series occurs and is continuing, the Holders of a majority in principal amount of the outstanding Indenture Securities of such series will have the right to direct the time, method and place of conducting any proceedings for any remedy available to the Indenture Trustee in exercising any trust or power conferred on the Indenture Trustee; provided, however, that if an Event of Default occurs and is continuing with respect to more than one series of Indenture Securities, the Holders of a majority in aggregate principal amount of the outstanding Indenture Securities of all such series, considered as one class, will have the right to make such direction, and not the Holders of any one of such series; and provided, further, that (a) such direction does not conflict with any rule of law or with the Indenture, and could not involve the Indenture Trustee in personal liability in circumstances where indemnity would not, in the Indenture Trustee’s sole discretion, be adequate and (b) the Indenture Trustee may take any other action deemed proper by the Indenture Trustee which is not inconsistent with such direction. (Indenture, Sec. 712)

Limitation on Right to Institute Proceedings

No Holder will have any right to institute any proceeding, judicial or otherwise, with respect to the Indenture or for the appointment of a receiver or for any other remedy thereunder unless:

such Holder has previously given to the Indenture Trustee written notice of a continuing Event of Default with respect to the Indenture Securities of any one or more series;
the Holders of a majority in aggregate principal amount of the outstanding Indenture Securities of all series in respect of which such Event of Default has occurred, considered as one class, have made written request to the Indenture Trustee to institute proceedings in respect of such Event of Default and have offered the Indenture Trustee reasonable indemnity against costs and liabilities to be incurred in complying with such request; and

for 60 days after receipt of such notice, the Indenture Trustee has failed to institute any such proceeding and no direction inconsistent with such request has been given to the Indenture Trustee during such 60 day period by the Holders of a majority in aggregate principal amount of Indenture Securities then outstanding.

Furthermore, no Holder of any series of Indenture Securities will be entitled to institute any such action if and to the extent that such action would disturb or prejudice the rights of other Holders of such series. (Indenture, Sec. 707)

No Impairment of Right to Receive Payment

Notwithstanding that the right of a Holder to institute a proceeding with respect to the Indenture is subject to certain conditions precedent, each Holder will have the right, which is absolute and unconditional, to receive payment of the principal of and premium, if any, and interest, if any, on such Indenture Security when due and to institute suit for the enforcement of any such payment. Such rights may not be impaired or affected without the consent of such Holder. (Indenture, Sec. 708)

Notice of Default

The Indenture Trustee is required to give the Holders notice of any default under the Indenture to the extent required by the Trust Indenture Act, unless such default shall have been cured or waived, except that no such notice to Holders of a default of the character described in the third bulleted paragraph under “—Events of Default” may be given until at least 75 days after the occurrence thereof. For purposes of the preceding sentence, the term “default” means any event which is, or after notice or lapse of time, or both, would become, an Event of Default. The Trust Indenture Act currently permits the Indenture Trustee to withhold notices of default (except for certain payment defaults) if the Indenture Trustee in good faith determines the withholding of such notice to be in the interests of the Holders. (Indenture, Sec. 802)

Consolidation, Merger, Sale of Assets and Other Transactions

Avista Corp. may not consolidate with or merge into any other Person, or convey or otherwise transfer, or lease, all of its properties, as or substantially as an entirety, to any Person, unless:

the Person formed by such consolidation or into which Avista Corp. is merged or the Person which acquires by conveyance or other transfer, or which leases (for a term extending beyond the last Stated Maturity of the Indenture Securities then outstanding), all of the properties of Avista Corp., as or substantially as an entirety, shall be a Person organized and existing under the laws of the United States, any State or Territory thereof or the District of Columbia or under the laws of Canada or any Province thereof; and
such Person shall expressly assume the due and punctual payment of the principal of and premium, if any, and interest, if any, on all the Indenture Securities then outstanding and the performance and observance of every covenant and condition of the Indenture to be performed or observed by Avista Corp.

In the case of the conveyance or other transfer of all of the properties of Avista Corp., as or substantially as an entirety, to any person as contemplated above, Avista Corp. would be released and discharged from all obligations under the Indenture and on all Indenture Securities then outstanding unless Avista Corp. elects to waive such release and discharge. Upon any such consolidation or merger or any such conveyance or other transfer of properties of Avista Corp., the successor, transferee or lessee would succeed to, and be substituted for, and would be entitled to exercise every power and right of, Avista Corp. under the Indenture. (Indenture, Secs. 1001, 1002 and 1003)

For purposes of the Indenture, the conveyance, transfer or lease by Avista Corp. of all of its facilities (a) for the generation of electric energy, (b) for the transmission of electric energy, (c) for the

distribution of electric energy and/or natural gas, in each case considered alone, (d) all of its facilities described in clauses (a) and (b), considered together, or (e) all of its facilities described in clauses (b) and (c), considered together, will in no event be deemed to constitute a conveyance or other transfer of all the properties of Avista Corp., as or substantially as an entirety, unless, immediately following such conveyance, transfer or lease, Avista Corp. owns no unleased properties in the other such categories of property not so conveyed or otherwise transferred or leased.

The Indenture will not prevent or restrict:

any consolidation or merger after the consummation of which Avista Corp. would be the surviving or resulting entity; or
any conveyance or other transfer, or lease, of any part of the properties of Avista Corp. which does not constitute the entirety, or substantially the entirety, thereof. (Indenture, Sec. 1004)

If Avista Corp. conveys or otherwise transfers any part of its properties which does not constitute the entirety, or substantially the entirety, thereof to another Person meeting the requirements set forth in the first paragraph under this heading, and if:

such transferee expressly assumes the due and punctual payment of the principal of and premium, if any, and interest, if any, on all Indenture Securities then outstanding and the performance and observance of every covenant and condition of the Indenture to be performed or observed by Avista Corp.; and
there is delivered to the Indenture Trustee an independent expert’s certificate (i) describing the property so conveyed or transferred and identifying the same as facilities for the generation, transmission or distribution of electric energy or for the storage, transportation or distribution of natural gas and (ii) stating that the aggregate principal amount of the Indenture Securities then outstanding does not exceed 70% of the fair value of such property,

then Avista Corp. would be released and discharged from all obligations and covenants under the Indenture and on all Indenture Securities then outstanding unless Avista Corp. elects to waive such release and discharge. In such event, the transferee would succeed to, and be substituted for, and would be entitled to exercise every right and power of, Avista Corp. under the Indenture. (Indenture, Sec. 1005)

Modification of Indenture

Modifications Without Consent

Avista Corp. and the Indenture Trustee may enter into one or more supplemental indentures, without the consent of any Holders, for any of the following purposes:

to evidence the succession of another Person to Avista Corp. and the assumption by any such successor of the covenants of Avista Corp. in the Indenture and in the Indenture Securities;
to add one or more covenants of Avista Corp. or other provisions for the benefit of all Holders or for the benefit of the Holders of, or to remain in effect only so long as there shall be outstanding, Indenture Securities of one or more specified series, or one or more tranches thereof, or to surrender any right or power conferred upon Avista Corp. by the Indenture;
to change or eliminate any provisions of the Indenture or to add any new provisions to the Indenture, provided that if such change, elimination or addition adversely affects the interests of the Holders of the Indenture Securities of any series or tranche in any material respect, such change, elimination or addition will become effective with respect to such series or tranche only when no Indenture Security of such series or tranche remains outstanding;
to provide collateral security for the Indenture Securities or any series thereof;

to establish the form or terms of the Indenture Securities of any series or tranche as permitted by the Indenture;
to provide for the authentication and delivery of bearer securities and coupons appertaining thereto representing interest, if any, thereon and for the procedures for the registration, exchange and replacement thereof and for the giving of notice to, and the solicitation of the vote or consent of, the Holders thereof, and for any and all other matters incidental thereto;
to evidence and provide for the acceptance of appointment by a successor trustee with respect to the Indenture Securities of one or more series;
to provide for the procedures required to permit the utilization of a non-certificated system of registration for all, or any series or tranche of, the Indenture Securities; or
to change any place or places where (a) the principal of and premium, if any, and interest, if any, on all or any series of Indenture Securities, or any tranche thereof, will be payable, (b) all or any series of Indenture Securities, or any tranche thereof, may be surrendered for registration of transfer, (c) all or any series of Indenture Securities, or any tranche thereof, may be surrendered for exchange and (d) notices and demands to or upon Avista Corp. in respect of all or any series of Indenture Securities, or any tranche thereof, and the Indenture may be served; or
to cure any ambiguity, to correct or supplement any provision therein which may be defective or inconsistent with any other provision therein, to make any other changes to the provisions thereof or to add any other provisions with respect to matters and questions arising under the Indenture, so long as such other changes or additions do not adversely affect the interests of the Holders of any series or tranche in any material respect.

Without limiting the generality of the foregoing, if the Trust Indenture Act is amended after the date of the Original Indenture in such a way as to require changes to the Indenture or the incorporation therein of additional provisions or so as to permit changes to, or the elimination of, provisions which, at the date of the Original Indenture or at any time thereafter, were required by the Trust Indenture Act to be contained in the Indenture, the Indenture will be deemed to have been amended so as to conform to such amendment or to effect such changes or elimination, and Avista Corp. and the Indenture Trustee may, without the consent of any Holders, enter into one or more supplemental indentures to evidence or effect such amendment. (Indenture, Sec. 1101)

Modifications Requiring Consent

Except as provided above, the consent of the Holders of a majority in aggregate principal amount of the Indenture Securities of all series then outstanding, considered as one class is required for the purpose of adding any provisions to, or changing in any manner, or eliminating any of the provisions of, the Indenture pursuant to one or more supplemental indentures; provided, however, that if less than all of the series of Indenture Securities outstanding are directly affected by a proposed supplemental indenture, then the consent only of the Holders of a majority in aggregate principal amount of outstanding Indenture Securities of all series so directly affected, considered as one class, will be required; and provided, further, that if the Indenture Securities of any series have been issued in more than one tranche and if the proposed supplemental indenture directly affects the rights of the Holders of one or more, but less than all, of such tranches, then the consent only of the Holders of a majority in aggregate principal amount of the outstanding Indenture Securities of all tranches so directly affected, considered as one class, will be required; and provided, further, that no such amendment or modification may:

change the Stated Maturity of the principal of, or any installment of principal of or interest on, any Indenture Security other than pursuant to the terms thereof, or reduce the principal amount thereof or the rate of interest thereon (or the amount of any installment of interest

thereon) or change the method of calculating such rate or reduce any premium payable upon the redemption thereof, or reduce the amount of the principal of any Discount Security that would be due and payable upon a declaration of acceleration of Maturity or change the coin or currency (or other property) in which any Indenture Security or any premium or the interest thereon is payable, or impair the right to institute suit for the enforcement of any such payment on or after the Stated Maturity of any Indenture Security (or, in the case of redemption, on or after the redemption date) without, in any such case, the consent of the Holder of such Indenture Security;

reduce the percentage in principal amount of the outstanding Indenture Securities of any series, or any tranche thereof, the consent of the Holders of which is required for any such supplemental indenture, or the consent of the Holders of which is required for any waiver of compliance with any provision of the Indenture or of any default thereunder and its consequences;
reduce the requirements for quorum or voting, without, in any such case, the consent of the Holder of each outstanding Indenture Security of such series or tranche; or
modify certain of the provisions of the Indenture relating to supplemental indentures, waivers of certain covenants and waivers of past defaults with respect to the Indenture Securities of any series, or any tranche thereof, without the consent of the Holder of each outstanding Indenture Security of such series or tranche.

A supplemental indenture which changes or eliminates any covenant or other provision of the Indenture which has expressly been included solely for the benefit of the Holders of, or which is to remain in effect only so long as there shall be outstanding, Indenture Securities of one or more specified series, or one or more tranches thereof, or modifies the rights of the Holders of such series or tranche with respect to such covenant or other provision, will be deemed not to affect the rights under the Indenture of the Holders of any other series or tranche.

If the supplemental indenture or other document establishing any series or tranche of Indenture Securities so provides, and as specified in the applicable prospectus supplement and/or pricing supplement, the Holders of such Indenture Securities will be deemed to have consented, by virtue of their purchase of such Indenture Securities, to a supplemental indenture containing the additions, changes or eliminations to or from the Indenture which are specified in such supplemental indenture or other document. No Act of such Holders will be required to evidence such consent and such consent may be counted in the determination of whether the Holders of the requested principal amount of Indenture Securities have consented to such supplemental indenture. (Indenture, Sec. 1102)

Duties of the Indenture Trustee; Resignation; Removal

The Indenture Trustee will have, and will be subject to, all the duties and responsibilities specified with respect to an indenture trustee under the Trust Indenture Act. Subject to such provisions, the Indenture Trustee will be under no obligation to exercise any of the powers vested in it by the Indenture at the request of any Holder, unless such Holder offers it reasonable indemnity against the costs, expenses and liabilities which might be incurred thereby. The Indenture Trustee will not be required to expend or risk its own funds or otherwise incur personal financial liability in the performance of its duties if the Indenture Trustee reasonably believes that repayment or adequate indemnity is not reasonably assured to it. (Indenture, Secs. 801 and 803)

The Indenture Trustee may resign at any time with respect to the Indenture Securities of one or more series by giving written notice thereof to Avista Corp. or may be removed at any time with respect to the Indenture Securities of one or more series by Act of the Holders of a majority in principal amount of the outstanding Indenture Securities of such series delivered to the Indenture Trustee and Avista Corp. No resignation or removal of the Indenture Trustee and no appointment of a successor trustee will become

effective until the acceptance of appointment by a successor trustee in accordance with the requirements of the Indenture. So long as no Event of Default or event which, after notice or lapse of time, or both, would become an Event of Default has occurred and is continuing, if Avista Corp. has delivered to the Indenture Trustee with respect to one or more series a resolution of its Board of Directors appointing a successor trustee with respect to that or those series and such successor has accepted such appointment in accordance with the terms of the Indenture, the Indenture Trustee with respect to that or those series will be deemed to have resigned and the successor will be deemed to have been appointed as trustee in accordance with the Indenture. (Indenture, Sec. 810)

Evidence of Compliance

Compliance with the Indenture provisions is evidenced by written statements of Avista Corp. officers or persons selected or paid by Avista Corp. In certain cases, Avista Corp. must furnish opinions of counsel and certifications of an engineer, appraiser or other expert (who in some cases must be independent). In addition, the Indenture requires that Avista Corp. give the Indenture Trustee, not less than annually, a brief statement as to Avista Corp.’s compliance with the conditions and covenants under the Indenture.

Governing Law

The Indenture and the Indenture Securities will be governed by and construed in accordance with the laws of the State of New York, except to the extent that the Trust Indenture Act of 1939, as amended, shall be applicable.

DESCRIPTION OF COMMON STOCK

General

The authorized capital stock of Avista Corp. consists of 10,000,000 shares of Preferred Stock, cumulative, without nominal or par value, which is issuable in series (the “Preferred Stock”), and 200,000,000 shares of Common Stock without nominal or par value, together with attached preferred share purchase rights (the “Common Stock”). Following is a brief description of certain of the rights and privileges of the Common Stock. For a complete description, reference is made to Avista Corp.’s Restated Articles of Incorporation, as amended (the “Articles”), and its Bylaws (the “Bylaws”) and to the laws of the State of Washington. The following summary, which does not purport to be complete, is qualified in its entirety by such reference.

Dividend Rights

After full provision for all Preferred Stock dividends declared or in arrears, the holders of Common Stock are entitled to receive such dividends as may be lawfully declared from time to time by Avista Corp.’s Board of Directors.

The Indenture, dated as of April 3, 2001, between Avista Corp. and Chase Manhattan Bank and Trust Company, National Association, trustee, under which $317.1 million of senior unsecured notes were outstanding as of December 31, 2003, contains restrictions on the payment of dividends. So long as there is no default under the Indenture, Avista Corp. does not expect these restrictions to limit its ability to pay dividends on its capital stock.

Voting Rights

The holders of the Common Stock have sole voting power, except as indicated below or as otherwise provided by law. Each holder of Common Stock is entitled to one vote per share, except that, in the election of directors, each holder has “cumulative” voting rights by which such holder is entitled to that number of votes which is equal to the number of directors to be elected multiplied by the number of shares held. These votes may all be cast for a single nominee for director or may be distributed among any two or more nominees.

If dividends payable on any shares of Preferred Stock shall be in arrears in an amount equal to the aggregate amount of dividends accumulated on such shares of Preferred Stock over the eighteen (18) month period ended on such date, the holders of such stock become entitled, voting as one class, to elect a majority of the Board of Directors, and the holders of the Common Stock, voting as a single class, will be entitled to elect the remaining directors of Avista Corp. Such right does not cease until all defaults in the payment of dividends on the Preferred Stock shall have been cured.

In addition, the consent of various proportions of the Preferred Stock at the time outstanding is required to adopt any amendment to the Articles which would authorize any new class of stock ranking prior to or on a parity with the Preferred Stock as to certain matters, to increase the authorized number of shares of the Preferred Stock or to change any of the rights or preferences of outstanding Preferred Stock.

Classified Board of Directors

Both the Articles and the Bylaws provide for a Board of Directors divided into three classes. Each director of a class will generally serve for a term of three years, with only one class of directors being elected in each year. The classification of the Board of Directors reduces the impact of cumulative voting rights.

The Articles and Bylaws also generally provide that directors may be removed only for cause and only by the affirmative vote of the holders of at least a majority of the outstanding shares of Common Stock. The Articles and Bylaws further require an affirmative vote of the holders of at least 80% of the outstanding shares of Common Stock to alter, amend or repeal the provisions relating to the classification of the Board of Directors and the removal of members from, and the filling of vacancies on, the Board of Directors.

“Fair Price” Provision

The Articles contain a “fair price” provision which requires the affirmative vote of the holders of at least 80% of the outstanding shares of Common Stock for the consummation of certain business combinations, including mergers, consolidations, recapitalizations, certain dispositions of assets, certain issuances of securities, liquidations and dissolutions involving Avista Corp. and a person or entity who is or, under certain circumstances, was, a beneficial owner of 10% or more of the outstanding shares of Common Stock (an “Interested Shareholder”) unless

such business combination shall have been approved by a majority of the directors unaffiliated with the Interested Shareholder or
certain minimum price and procedural requirements are met. The Articles provide that the “fair price” provision may be altered, amended or repealed only by the affirmative vote of the holders of at least 80% of the outstanding shares of Common Stock.

Preferred Share Purchase Rights

General

Reference is made to the Rights Agreement, dated as of November 15, 1999 (the “Rights Agreement”) between Avista Corp. and The Bank of New York, as Rights Agent, filed with the SEC. The following statements are qualified in their entireties by such reference.

On November 12, 1999, the Avista Corp. Board of Directors authorized the Rights Agreement to replace the then-existing rights plan which expired on February 16, 2000. Under the Rights Agreement, Avista Corp. granted one preferred share purchase right (a “Right”) on each outstanding share of Common Stock to holders of Common Stock outstanding on February 15, 2000 or issued thereafter. The description and terms of Rights are set forth in the Rights Agreement.

Each Right entitles the registered holder, subject to regulatory approvals and other specified conditions, to purchase one one-hundredth of a share of Preferred Stock at a purchase price of $70.00 (the “Purchase Price”). The Rights are exercisable only if a person or group

acquires beneficial ownership of 10% or more of the outstanding shares of Common Stock, or
commences a tender or exchange offer, the consummation of which would result in the beneficial ownership by a person or group of 10% or more of the outstanding shares of Common Stock.

Until that time, the Rights are evidenced by and trade with the shares of Common Stock. The Rights will expire on March 31, 2009 unless Avista Corp. first redeems or exchanges them, in each case as described below.

The purchase of stock pursuant to the Rights may be subject to regulatory approvals and other specified conditions. Under no circumstances will a person or group that acquires 10% of the Common Stock be entitled to exercise Rights.

“Flip-in”

If any person or group acquires beneficial ownership of 10% or more of the outstanding shares of Common Stock, each unexercised Right will entitle its holder to purchase that number of shares of Common Stock or, at the option of Avista Corp., Preferred Stock, which has a market value at that time of twice the Purchase Price.

“Flip-over”

In the event that any person or group has acquired beneficial ownership of 10% or more of the outstanding shares of Common Stock, and Avista Corp.

consolidates or merges with or into, or
sells 50% or more of its assets or earning power to,

any person or group, each unexercised Right would instead entitle its holder to purchase the acquiring company’s common shares having a market value of twice the Purchase Price.

Exchange

If a person or group acquires beneficial ownership of more than 10% but less than 50% of the outstanding shares of Common Stock, Avista Corp. may exchange each outstanding Right for one share of Common Stock or cash, securities or other assets having a value equal to the market value of one share of Common Stock. That exchange may be subject to regulatory approvals.

Redemption

Avista Corp. may redeem the Rights, at a redemption price of $0.01 per Right, at any time until any person or group has acquired beneficial ownership of 10% or more of the outstanding shares of Common Stock.

Certain Adjustments

The Purchase Price, the amount and type of securities covered by each Right and the number of Rights outstanding will be adjusted to prevent dilution

in the event of a stock dividend on, or a subdivision, combination or reclassification of, the Preferred Stock,

if holders of the Preferred Stock are granted certain rights, options or warrants to subscribe for Preferred Stock or securities convertible into Preferred Stock or equivalent preferred shares at less than the current market price of the Preferred Stock, or
upon the distribution to holders of the Preferred Stock of evidences of indebtedness or assets (excluding regular quarterly cash dividends) or of subscription rights or warrants (other than those referred to above).

With certain exceptions, no adjustments in the Purchase Price will be made until cumulative adjustments amount to at least 1% of the Purchase Price. Avista Corp. will not issue fractional shares of Preferred Stock other than in integral multiples of one ten-thousandth of a share. Instead, Avista Corp. will make an adjustment in cash based on the market price of the Preferred Stock on the last trading date prior to the date of exercise.

Amounts Outstanding

Avista Corp. distributed one Right to its shareholders for each share of Common Stock owned of record by them at the close of business on February 15, 2000. Until the earliest of

such time as any person or group acquires beneficial ownership of 10% or more of the outstanding shares of Common Stock,
March 31, 2009, or
the redemption of the Rights,

Avista Corp. has issued and will continue to issue one Right with each share of Common Stock that is issued after February 15, 2000 so that each outstanding share of Common Stock will have an appurtenant Right. Avista Corp. has initially authorized and reserved 600,000 shares of Preferred Stock for issuance upon exercise of the Rights.

Amendment

Avista Corp. may amend the Rights Agreement in any respect until any person or group has acquired beneficial ownership of 10% or more of the outstanding shares of Common Stock. Thereafter, Avista Corp. may amend the Rights Agreement in any manner which will not adversely affect the holders of the Rights in any material respect.

Statutory Limitation on “Significant Business Transactions”

General

The Washington Business Corporation Act contains provisions that limit our ability to engage in “significant business transactions” with an “acquiring person”, each as defined below. We have no right to waive the applicability of these provisions.

Significant Business Transactions Within Five Years of Share Acquisition Time

Subject to certain exceptions, for five years after an “acquiring person’s” “share acquisition time”, Avista Corp. may not engage in any “significant business transaction” with such “acquiring person” unless, before such “share acquisition time”, a majority of the Board of Directors approves either:

such “significant business transaction”; or
the purchase of shares made by such “acquiring person”.

Significant Business Transactions More Than Five Years After Share Acquisition Time

Avista Corp. may not engage in certain “significant business transactions” (including mergers, share exchanges and consolidations) with any “acquiring person” unless:

the transaction complies with certain “fair price” provisions specified in the statute; or
no earlier than five years after the “acquiring person’s” “share acquisition time”, the “significant business transaction” is approved at an annual or special meeting of shareholders (in which the “acquiring person’s” shares may not be counted in determining whether the “significant business transaction” has been approved).

Definitions

As used in this section:

“Significant business transaction” means any of various specified transactions involving an “acquiring person”, including:

a merger, share exchange, or consolidation of Avista Corp. or any of its subsidiaries with an “acquiring person” or its affiliate;
a sale, lease, transfer or other disposition to an “acquiring person” or its affiliate of assets of Avista Corp. or any of its subsidiaries having an aggregate market value equal to 5% or more of all of the assets determined on a consolidated basis, or all the outstanding shares of Avista Corp., or representing 5% or more of its earning power or net income determined on a consolidated basis;
termination, at any time over the five-year period following the “share acquisition time”, of 5% or more of the employees of Avista Corp. as a result of the “acquiring person’s” acquisition of 10% or more of the shares of Avista Corp.; and
the issuance or redemption by Avista Corp. or any of its subsidiaries of shares (or of options, warrants, or rights to acquire shares) of Avista Corp. or any of its subsidiaries to or beneficially owned by an “acquiring person” or its affiliate except pursuant to an offer, dividend distribution or redemption paid or made pro rata to all shareholders (or holders of options, warrants or rights).

“Acquiring person” means, with certain exceptions, a person (or group of persons) other than Avista Corp. or its subsidiaries who beneficially owns 10% or more of the outstanding Common Stock of Avista Corp.

“Share acquisition time” means the time at which a person first becomes an “acquiring person” of Avista Corp.

Anti-Takeover Effect

The provisions of the Articles and the Bylaws described above under “Classified Board of Directors” and “‘Fair Price’ Provision” and the Rights Agreement described above under “Preferred Share Purchase Rights”, together with the provisions of the Washington Business Corporation Act described above under “Statutory Limitations on ‘Significant Business Transactions’”, considered either individually or in the aggregate, may have an “anti-takeover” effect. These provisions could discourage a future takeover attempt which is not approved by Avista Corp.’s Board of Directors but which individual shareholders might deem to be in their best interests or in which shareholders would receive a premium for their shares over current market prices. As a result, shareholders who might desire to participate in such a transaction might not have an opportunity to do so.

The Rights described above under “Preferred Share Purchase Rights” would cause substantial dilution to a person or group that attempts to acquire Avista Corp. on terms not approved by the Board of Directors, except pursuant to an offer conditioned on a substantial number of Rights being acquired or redeemed. However, the Rights should not interfere with any merger or other business combination approved by the Board of Directors prior to the time that a person or group has acquired beneficial ownership of 10% or more of the Common Stock since until such time the Rights may be redeemed, or the Rights Agreement may be amended, as described above.

The provisions described above under “Classified Board of Directors” could also cause the removal of the incumbent Board of Directors or management to require more time or render such removal more difficult, procedurally or otherwise.

Liquidation Rights

In the event of any liquidation of Avista Corp., after satisfaction of the preferential liquidation rights of the Preferred Stock, the holders of Common Stock would be entitled to share ratably in all assets of Avista Corp. available for distribution to shareholders.

Pre-Emptive Rights

No holder of any stock of Avista Corp. has any pre-emptive rights.

Miscellaneous

The presently outstanding shares of Common Stock are fully paid and non-assessable.

The Common Stock is listed on the New York Stock Exchange and the Pacific Exchange.

The New York Transfer Agent and Registrar for the Common Stock is The Bank of New York, 101 Barclay Street, 11^th Floor, New York, New York 10286.

WHERE YOU CAN FIND MORE INFORMATION

General

We are subject to the informational reporting requirements of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Avista Corp. files annual, quarterly and special reports, proxy statements and other documents with the SEC (File No. 1-3701). These documents contain important business and financial information. You may read and copy any materials Avista Corp. files with the SEC at the SEC’s public reference room at 450 Fifth Street, N.W., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the public reference room. Avista Corp.’s SEC filings are also available to the public from the SEC’s website at http://www.sec.gov. Other than those documents incorporated by reference into this prospectus, information on this website does not constitute a part of this prospectus.

Incorporation of Documents by Reference

The SEC allows us to incorporate by reference the information that we file with the SEC. This allows us to disclose important information to you by referring you to those documents rather than repeating them in full in this prospectus. We are incorporating into this prospectus by reference:

Avista Corp.’s most recent Annual Report on Form 10-K filed with the SEC pursuant to the Exchange Act and
all other documents filed by Avista Corp. with the SEC pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to the filing of Avista Corp.’s most recent Annual Report and prior to the termination of the offering made by this prospectus,

and all of those documents are deemed to be a part of this prospectus from the date of filing such documents. We refer to the documents incorporated into this prospectus by reference as the “Incorporated Documents”. Any statement contained in an Incorporated Document may be modified or

superseded by a statement in this prospectus (if such Incorporated Document was filed prior to the date of this prospectus) in any prospectus supplement or in any subsequently filed Incorporated Document. The Incorporated Documents as of the date of this prospectus are:

Annual Report on Form 10-K for the year ended December 31, 2003;

Quarterly Report on Form 10-Q for the quarter ended March 31, 2004;

Current Reports on Form 8-K filed on February 9, March 15, April 20 and May 14, 2004.

You may request any of these filings, at no cost, by contacting us at the address or telephone number provided on page 2 of this prospectus. Avista Corp. maintains an Internet site at http://www.avistacorp.com which contains information concerning Avista Corp. and its affiliates. The information contained at Avista Corp.’s Internet site is not incorporated in this prospectus by references and you should not consider it a part of this prospectus.

PLAN OF DISTRIBUTION

Avista Corp. may sell the Securities in any of four ways: (a) directly to a limited number of institutional purchasers or to a single purchaser, (b) through agents, (c) through underwriters or (d) through dealers. The applicable prospectus supplement relating to each offering of Securities will set forth the terms of the offering of such Securities, including the name or names of any such agents, underwriters or dealers, the purchase price of such Securities and the net proceeds to Avista Corp. from such sale, any underwriting discounts and other items constituting underwriters’ compensation, the initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers. Any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers may be changed from time to time.

New shares of Avista Corp.’s Common Stock sold through agents or underwriters may be sold by means of (i) ordinary brokers’ transactions; (ii) block transactions (which may involve crosses) in accordance with the rules of the New York Stock Exchange, the Pacific Stock Exchange and other exchanges on which the Common Stock is admitted to trading privileges, including transactions in which any agent may sell shares as agents but may also position and resell all or a portion of the blocks as principals; (iii) offerings off the floors of the exchanges or (iv) a combination of such methods. Sales may be made at prevailing market prices (which could be subject to change). Any such offering would be described in a supplement to this prospectus setting forth the terms of the offering and the number of shares being offered.

If Avista Corp. uses underwriters to sell Securities, the underwriters will acquire such Securities for their own account and may resell them in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. Unless otherwise set forth in the prospectus supplement relating to an offering of Securities, the obligations of any underwriter or underwriters to purchase such Securities will be subject to certain conditions precedent, and such underwriter or underwriters will be obligated to purchase all of such Securities if any are purchased, except that, in certain cases involving a default by one or more underwriters, less than all of such Securities may be purchased.

If an agent of Avista Corp. is used in any sale of a series of Securities, any commissions payable by Avista Corp. to such agent will be set forth in the applicable prospectus supplement relating to such Securities. Unless otherwise indicated in the applicable prospectus supplement, any such agent will be acting on a best efforts basis for the period of its appointment.

Any underwriters, dealers or agents participating in the distribution of the Securities may be deemed to be underwriters, and any discounts or commissions received by them on the sale or resale of Securities may be deemed to be underwriting discounts and commissions, under the Securities Act. Agents, underwriters and dealers may be entitled under agreements entered into with Avista Corp. to indemnification by Avista Corp. against certain liabilities, including liabilities under the Securities Act.

Avista Corp. may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be identified in the applicable prospectus supplement (or a post-effective amendment).

The outstanding shares of Avista Corp.’s Common Stock are listed on the New York Stock Exchange and the Pacific Stock Exchange. Any new shares of Common Stock will also be listed on those exchanges, subject to official notice of issuance.

Each series of Securities will be a new issue and, except for the Common Stock, will have no established trading market.

The agents, underwriters and dealers and/or certain of their affiliates may engage in transactions with and perform services for Avista Corp. and certain of its affiliates in the ordinary course of business.

LEGAL MATTERS

The validity of the Securities under New York law, certain other matters of New York law and matters of federal securities law will be passed upon for Avista Corp. by Dewey Ballantine LLP, counsel to Avista Corp. The authorization of the Securities by Avista Corp., the validity of the Securities under Washington law and certain other matters of Washington law, as well as the authorization of the Securities by the public utility regulatory commissions under Washington, Idaho, Montana, Oregon and California law, will be passed upon for Avista Corp. by Heller Ehrman White & McAuliffe LLP, counsel for Avista Corp. Certain other matters will be passed upon for Avista Corp. by David J. Meyer, Esq., Vice President and Chief Counsel for Regulatory and Governmental Affairs of Avista Corp. The validity of the Securities will be passed upon for any underwriters or agents by Sullivan & Cromwell LLP. In giving their opinions Dewey Ballantine LLP and Sullivan & Cromwell LLP may assume the conclusions of Washington, California, Idaho, Montana and Oregon law set forth in the opinion of Heller Ehrman White & McAuliffe LLP.

EXPERTS

The financial statements incorporated in this prospectus by reference from Avista Corp.’s most recent Annual Report on Form 10-K have been audited by Deloitte & Touche LLP, independent auditors, as stated in their report (which includes an explanatory paragraph for certain changes in accounting and presentation resulting from the impact of recently adopted accounting standards), which is incorporated herein by reference, and have been so incorporated in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.

PART II

Item 16. Exhibits.

Reference is made to the Exhibit Index on p. II-3 hereof.

II-1

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this amendment to the Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Spokane and State of Washington on the 17th day of May, 2004.

	AVISTA CORPORATION

By	/s/ Malyn K. Malquist

	Malyn K. Malquist Senior Vice President and Principal Financial Officer

Pursuant to the requirements of the Securities Act of 1933, this amendment to the Registration Statement has been signed by the following persons in the capacities and on the date indicated.

Signature	Title	Date
*

Gary G. Ely	Principal Executive	May 17, 2004
Chairman of the Board	Officer
President and Principal
Executive Officer

/s/ Malyn K. Malquist

Malyn K. Malquist	Principal Financial	May 17, 2004
Senior Vice President and	and Accounting Officer
Principal Financial Officer

*

Erik J. Anderson	Director	May 17, 2004

*

Kristianne Blake	Director	May 17, 2004

*

David A. Clack	Director	May 17, 2004

*

Roy Lewis Eiguren	Director	May 17, 2004

*

Jack W. Gustavel	Director	May 17, 2004

*

John F. Kelly	Director	May 17, 2004

*

Jessie J. Knight, Jr.	Director	May 17, 2004

*

Michael L. Noel	Director	May 17, 2004

*

Lura J. Powell, Ph.D.	Director	May 17, 2004

*

R. John Taylor	Director	May 17, 2004

*By /s/ David J. Meyer.

David J. Meyer.
Attorney-in-Fact

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EXHIBIT INDEX

Exhibit		Description

1(a)		Form of Underwriting Agreement for offering of first mortgage bonds (previously filed as exhibit 1(a) to Pre-effective Amendment No. 1 to Registration Statement No. 333-64652).

1(b)		Form of Underwriting Agreement for offering of common stock (previously filed as exhibit 1(b) to Pre-effective Amendment No. 1 to Registration Statement No. 333-64652).

1(c)		Form of Underwriting Agreement for offering of senior notes (previously filed as exhibit 1(c) to Pre-effective Amendment No. 1 to Registration Statement No. 333-64652).

1(d)*		Form of Sales Agency Agreement.

4(a)		Mortgage and Deed of Trust dated as of June 1, 1939, by and between Avista
		Corporation and Citibank, N.A., as Trustee (filed with registration number 2-4077
		B-3).

4(a)(1)		First Supplemental Indenture to the Mortgage, dated as of October 1, 1952 (filed
		with registration number 2-9812 4(c)).

4(a)(2)		Second Supplemental Indenture to the Mortgage, dated as of May 1, 1953 (filed
		with registration number 2-60728 2(b)-2).

4(a)(3)		Third Supplemental Indenture to the Mortgage, dated as of December 1, 1955
		(filed with registration number 2-13421 4(b)-3).

4(a)(4)		Fourth Supplemental Indenture to the Mortgage, dated as of March 15, 1957
		(filed with registration number 2-13421 4(b)-4).

4(a)(5)		Fifth Supplemental Indenture to the Mortgage, dated as of July 1, 1957 (filed with
		registration number 2-60728 2(b)-5).

4(a)(6)		Sixth Supplemental Indenture to the Mortgage, dated as of January 1, 1958 (filed
		with registration number 2-60728 2(b)-6).

4(a)(7)		Seventh Supplemental Indenture to the Mortgage, dated as of August 1, 1958
		(filed with registration number 2-60728 2(b)-7).

4(a)(8)		Eighth Supplemental Indenture to the Mortgage, dated as of January 1, 1959
		(filed with registration number 2-60728 2(b)-8).

4(a)(9)		Ninth Supplemental Indenture to the Mortgage, dated as of January 1, 1960 (filed
		with registration number 2-60728 2(b)-9).

4(a)(10)		Tenth Supplemental Indenture to the Mortgage, dated as of April 1, 1964 (filed
		with registration number 2-60728 2(b)-10).

4(a)(11)		Eleventh Supplemental Indenture to the Mortgage, dated as of March 1, 1965
		(filed with registration number 2-60728 2(b)-11).

4(a)(12)		Twelfth Supplemental Indenture to the Mortgage, dated as of May 1, 1966 (filed
		with registration number 2-60728 2(b)-12).

4(a)(13)		Thirteenth Supplemental Indenture to the Mortgage, dated as of August 1, 1966
		(filed with registration number 2-60728 2(b)-13).

4(a)(14)		Fourteenth Supplemental Indenture to the Mortgage, dated as of April 1, 1970
		(filed with registration number 2-60728 2(b)-14).

4(a)(15)		Fifteenth Supplemental Indenture to the Mortgage, dated as of May 1, 1973 (filed
		with registration number 2-60728 2(b)-15).

4(a)(16)		Sixteenth Supplemental Indenture to the Mortgage, dated as of February 1, 1975

II-3


			(filed with registration number 2-60728 2(b)-16).

4(a)(17)			Seventeenth Supplemental Indenture to the Mortgage, dated as of November 1,
			1976 (filed with registration number 2-60728 2(b)-17).

4(a)(18)			Eighteenth Supplemental Indenture to the Mortgage, dated as of June 1, 1980
			(filed with registration number 2-69080 2(b)-18).

4(a)(19)			Nineteenth Supplemental Indenture to the Mortgage, dated as of January 1, 1981
			(filed with registration number 1-3701 (1980 Form 10-K) 4(a)-20).

4(a)(20)			Twentieth Supplemental Indenture to the Mortgage, dated as of August 1, 1982
			(filed with registration number 2-79571 4(a)-21).

4(a)(21)			Twenty-first Supplemental Indenture to the Mortgage, dated as of September 1,
			1983 (filed with registration number 1-3701 (Form 8-K dated September 20,
			1983) 4(a)-22).

4(a)(22)			Twenty-second Supplemental Indenture to the Mortgage, dated as of March 1,
			1984 (filed with registration number 2-94816 4(a)-23).

4(a)(23)			Twenty-third Supplemental Indenture to the Mortgage, dated as of December 1,
			1986 (filed with registration number 1-3701 (1986 Form 10-K) 4(a)-24).

4(a)(24)			Twenty-fourth Supplemental Indenture to the Mortgage, dated as of January 1,
			1988 (filed with registration number 1-3701 (1987 Form 10-K) 4(a)-25).

4(a)(25)			Twenty-fifth Supplemental Indenture to the Mortgage, dated as of October 1,
			1989 (filed with registration number 1-3701 (1989 Form 10-K) 4(a)-26).

4(a)(26)			Twenty-sixth Supplemental Indenture to the Mortgage, dated as of April 1, 1993
			(filed with registration number 33-51669 4(a)-27).

4(a)(27)			Twenty-seventh Supplemental Indenture to the Mortgage, dated as of January 1,
			1994 (filed with registration number 1-3701 (1993 Form 10-K) 4(a)-28).

4(a)(28)			Twenty-eighth Supplemental Indenture to the Mortgage, dated as of September 1,
			2001 (filed with registration number 1-3701 (2001 Form 10-K) 4(a)-29).

4(a)(29)			Twenty-ninth Supplemental Indenture to the Mortgage, dated as of December 1,
			2001 (filed with registration number 333-82502 4(b)).

4(a)(30)			Thirtieth Supplemental Indenture to the Mortgage, dated as of May 1, 2002 (filed
			with registration number 1-3701 (June 30, 2002 Form 10-Q) 4(f)).

4(a)(31)			Thirty-first Supplemental Indenture to the Mortgage, dated as of May 1, 2003
			(filed with registration number 333-106491 4(b)).

4(a)(32)			Thirty-second Supplemental Indenture to the Mortgage, dated as of September 1,
			2003 (filed with registration number 1-3701 (September 30, 2003 Form 10-Q)
			4(f)).

4(a)(33)			Thirty-third Supplemental Indenture to the Mortgage, dated as of May 1, 2004.

4(b)			Form of Supplemental Indenture to the Mortgage (previously filed as exhibit 1(b) to Pre-effective Amendment No. 1 to Registration Statement No. 333-64652).

4(c)			Indenture, dated as of April 1, 1998, between Avista Corporation, JPMorgan
			Chase Bank (formerly known as The Chase Manhattan Bank), as Trustee (filed
			with Registration number 333-82165).

4(d)			Form of Officer’s Certificate to be used in connection with an underwritten public
			offering of Notes (previously filed as exhibit 4(d) to Pre-effective Amendment No. 1 to Registration Statement No. 333-64652).

II-4


4(e)		Rights Agreement, dated as of November 15, 1999, between the Registrant and
		Bank of New York, Rights Agent (previously filed as Exhibit 4 to Current Report
		on Form 8-K, dated November 15, 1999)

4(f)		Restated Articles of Incorporation of Avista Corporation as amended November
		1, 1999 (filed with registration number 1-3701 (2001 Form 10-K) 3(a)).

4(h)		Amendment No. 2, dated as of November 25, 2003 to the Credit Agreement dated as of May 21, 2002 among Avista Corporation, the Banks Party thereto, Washington Mutual Bank, as Managing Agent, Fleet National Bank, Keybank National Association, U.S. Bank, National Association and Wells Fargo Bank, as Documentation Agents, Union Bank of California, N.A., as Syndication Agent, and The Bank of New York, as Administration Agent and Issuing Bank.

4(i)		Amendment No. 3, dated as of May 6, 2004 to the Credit Agreement dated as of May 21, 2002 among Avista Corporation, the Banks Party thereto, Bank of America, N.A., Commerzbank AG and Washington Mutual Bank, as Managing Agents, Keybank National Association, U.S. Bank, National Association and Wells Fargo Bank, as Documentation Agents, Union Bank of California, N.A., as Syndication Agent, and The Bank of New York, as Administrative Agent.

4(g)		Bylaws of Avista Corporation, as amended February 6, 2004 (filed with
		registration number 1-3701 (2003 Form 10-K) 3(b)).

5(a)		Opinion and Consent of Heller Ehrman White & McAuliffe LLP (previously filed
		as Exhibit 5(a) to original Registration Statement No. 333-64652 and Exhibit 5(a)
		to Registration Statement No. 333-106491).

5(b)		Opinion and Consent of Dewey Ballantine LLP (previously filed as Exhibit 5(b)
		to Registration Statement No. 333-106491).

5(c)		Opinion and Consent of Paine, Hamblen, Coffin, Brooke & Miller LLP
		(previously filed as Exhibit 5(a) to Registration Statement No. 333-82165).

5(d)		Opinion and Consent of Thelen Reid & Priest LLP (previously filed as Exhibit
		5(b) to original Registration Statement No. 333-64652 and Exhibit 5(b) to
		Registration Statement No. 333-82165.)

12		Computation of Ratio of Earnings to Fixed Charges of Avista Corporation
		(contained in Incorporated Documents).

23(a)		Consent of Heller Ehrman White & McAuliffe LLP (contained in Exhibit 5(a)).

23(b)		Consent of Dewey Ballantine LLP (contained in Exhibit 5(b)).

23(c)		Consent of Paine, Hamblen, Coffin, Brooke & Miller LLP (contained in Exhibit 5(c)).

23(d)		Consent of Thelen Reid & Priest LLP (contained in Exhibit 5(d)).

23(e)		Consent of Deloitte & Touche LLP.

24		Power of Attorney (included on page II-3) (previously filed as exhibit 24 to Pre-effective Amendment No. 1 to Registration Statement No. 333-64652).

25(a)		Statement of Eligibility under the Trust Indenture Act of 1939, as amended, of
		JPMorgan Chase Bank, as Trustee under the Indenture.

25(b)		Statement of Eligibility under the Trust Indenture Act of 1939, as amended, of
		Citibank, N.A., as Trustee under the Mortgage and Deed of Trust.

*	To be filed subsequently as an exhibit to an amendment to this Registration Statement or a Current Report on Form 8-K.

II-5

Exhibit 4(a)(33) ================================================================================ AVISTA CORPORATION TO CITIBANK, N.A. AS SUCCESSOR TRUSTEE UNDER MORTGAGE AND DEED OF TRUST, DATED AS OF JUNE 1, 1939 ------------------------ THIRTY-THIRD SUPPLEMENTAL INDENTURE PROVIDING AMONG OTHER THINGS FOR A SERIES OF BONDS DESIGNATED "FIRST MORTGAGE BONDS, COLLATERAL SERIES DUE 2005" DUE MAY 5, 2005 ------------------------ Dated as of May 1, 2004 ================================================================================

THIRTY-THIRD SUPPLEMENTAL INDENTURE THIS INDENTURE, dated as of the 1st day of May 2004, between AVISTA CORPORATION (formerly known as The Washington Water Power Company), a corporation of the State of Washington, whose post office address is 1411 East Mission Avenue, Spokane, Washington 99202 (the "Company"), and CITIBANK, N.A., formerly First National City Bank (successor by merger to First National City Trust Company, formerly City Bank Farmers Trust Company), a national banking association incorporated and existing under the laws of the United States of America, whose post office address is 111 Wall Street, New York, 10043 New York (the "Trustee"), as Trustee under the Mortgage and Deed of Trust, dated as of June 1, 1939 (the "Original Mortgage"), executed and delivered by the Company to secure the payment of bonds issued or to be issued under and in accordance with the provisions thereof, this indenture (the "Thirty-third Supplemental Indenture") being supplemental to the Original Mortgage, as heretofore supplemented and amended. WHEREAS pursuant to a written request of the Company made in accordance with Section 103 of the Original Mortgage, Francis M. Pitt (then Individual Trustee under the Mortgage, as supplemented) ceased to be a trustee thereunder on July 23, 1969, and all of his powers as Individual Trustee have devolved upon the Trustee and its successors alone; and WHEREAS by the Original Mortgage the Company covenanted that it would execute and deliver such further instruments and do such further acts as might be necessary or proper to carry out more effectually the purposes of the Original Mortgage and to make subject to the lien of the Original Mortgage any property thereafter acquired intended to be subject to the lien thereof; and WHEREAS the Company has heretofore executed and delivered, in addition to the Original Mortgage, the indentures supplemental thereto, and has issued the series of bonds, set forth in Exhibit A hereto (the Mortgage, as supplemented and amended by the First through Thirty-second Supplemental Indentures being herein sometimes called collectively, the "Mortgage"); and WHEREAS the Original Mortgage and the First through Thirty-first Supplemental Indentures have been appropriately filed or recorded in various official records in the States of Washington, California, Idaho, Montana and Oregon, as set forth in the First through Thirty-second Supplemental Indentures and the Instrument of Further Assurance, dated December 15, 2001, hereinafter referred to; and WHEREAS the Thirty-second Supplemental Indenture, dated as of September 1, 2003, has been appropriately filed or recorded in the various official records in the States of Washington, California, Idaho, Montana and Oregon set forth in Exhibit B hereto; and WHEREAS for the purpose of confirming or perfecting the lien of the Mortgage on certain of its properties, the Company has heretofore executed and delivered a Short Form Mortgage and Security Agreement, in multiple counterparts dated as of various dates in 1992, and such instrument has been appropriately filed or recorded in the various official records in the States of California, Montana and Oregon; and 2

WHEREAS for the purpose of confirming or perfecting the lien of the Mortgage on certain of its properties, the Company has heretofore executed and delivered an Instrument of Further Assurance, dated as of December 15, 2001, and such instrument has been appropriately filed or recorded in the various official records in the States of Washington, California, Idaho, Montana and Oregon; and WHEREAS in addition to the property described in the Mortgage the Company has acquired certain other property, rights and interests in property; and WHEREAS Section 8 of the Original Mortgage provides that the form of each series of bonds (other than the First Series) issued thereunder and of the coupons to be attached to coupon bonds of such series shall be established by Resolution of the Board of Directors of the Company; that the form of such series, as established by said Board of Directors, shall specify the descriptive title of the bonds and various other terms thereof; and that such series may also contain such provisions not inconsistent with the provisions of the Mortgage as the Board of Directors may, in its discretion, cause to be inserted therein expressing or referring to the terms and conditions upon which such bonds are to be issued and/or secured under the Mortgage; and WHEREAS Section 120 of the Original Mortgage provides, among other things, that any power, privilege or right expressly or impliedly reserved to or in any way conferred upon the Company by any provision of the Mortgage, whether such power, privilege or right is in any way restricted or is unrestricted, may be in whole or in part waived or surrendered or subjected to any restriction if at the time unrestricted or to additional restriction if already restricted, and the Company may enter into any further covenants, limitations or restrictions for the benefit of any one or more series of bonds issued thereunder, or the Company may cure any ambiguity contained therein, or in any supplemental indenture, by an instrument in writing executed and acknowledged by the Company in such manner as would be necessary to entitle a conveyance of real estate to record in all of the states in which any property at the time subject to the lien of the Mortgage shall be situated; and WHEREAS the Company now desires to create a new series of bonds; and WHEREAS the execution and delivery by the Company of this Thirty-third Supplemental Indenture, and the terms of the bonds of the Thirty-first Series, hereinafter referred to, have been duly authorized by the Board of Directors of the Company by appropriate Resolutions of said Board of Directors, and all things necessary to make this Thirty-third Supplemental Indenture a valid, binding and legal instrument have been performed; NOW, THEREFORE, THIS INDENTURE WITNESSETH: That the Company, in consideration of the premises and of other good and valuable consideration, the receipt and sufficiency whereof are hereby acknowledged, hereby confirms the estate, title and rights of the Trustee (including without limitation the lien of the Mortgage on the property of the Company subjected thereto, whether now owned or hereafter acquired) held as security for the payment of both the principal of and interest and premium, if any, on the bonds from time to time issued under the Mortgage according to their tenor and effect and the performance of all the provisions of the Mortgage and of such bonds, and, without limiting the generality of the foregoing, hereby 3

confirms the grant, bargain, sale, release, conveyance, assignment, transfer, mortgage, pledge, setting over and confirmation unto the Trustee, contained in the Mortgage, of all the following described properties of the Company, whether now owned or hereafter acquired, namely: All of the property, real, personal and mixed, of every character and wheresoever situated (except any hereinafter or in the Mortgage expressly excepted) which the Company now owns or, subject to the provisions of Section 87 of the Mortgage, may hereafter acquire prior to the satisfaction and discharge of the Mortgage, as fully and completely as if herein or in the Mortgage specifically described, and including (without in anywise limiting or impairing by the enumeration of the same the scope and intent of the foregoing or of any general description contained in Mortgage) all lands, real estate, easements, servitudes, rights of way and leasehold and other interests in real estate; all rights to the use or appropriation of water, flowage rights, water storage rights, flooding rights, and other rights in respect of or relating to water; all plants for the generation of electricity, power houses, dams, dam sites, reservoirs, flumes, raceways, diversion works, head works, waterways, water works, water systems, gas plants, steam heat plants, hot water plants, ice or refrigeration plants, stations, substations, offices, buildings and other works and structures and the equipment thereof and all improvements, extensions and additions thereto; all generators, machinery, engines, turbines, boilers, dynamos, transformers, motors, electric machines, switchboards, regulators, meters, electrical and mechanical appliances, conduits, cables, pipes and mains; all lines and systems for the transmission and distribution of electric current, gas, steam heat or water for any purpose; all towers, mains, pipes, poles, pole lines, conduits, cables, wires, switch racks, insulators, compressors, pumps, fittings, valves and connections; all motor vehicles and automobiles; all tools, implements, apparatus, furniture, stores, supplies and equipment; all franchises (except the Company's franchise to be a corporation), licenses, permits, rights, powers and privileges; and (except as hereinafter or in the Mortgage expressly excepted) all the right, title and interest of the Company in and to all other property of any kind or nature. The property so conveyed or intended to be so conveyed under the Mortgage shall include, but shall not be limited to, the property set forth in Exhibit C hereto, the particular description of which is intended only to aid in the identification thereof and shall not be construed as limiting the force, effect and scope of the foregoing. TOGETHER WITH all and singular the tenements, hereditaments and appurtenances belonging or in anywise 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 Mortgage) 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. THE COMPANY HEREBY CONFIRMS that, subject to the provisions of Section 87 of the Original Mortgage, all the property, rights, and franchises acquired by the 4

Company after the date thereof (except any hereinbefore or hereinafter or in the Mortgage expressly excepted) are and shall be as fully embraced within the lien of the Mortgage as if such property, rights and franchises had been owned by the Company at the date of the Original Mortgage and had been specifically described therein. PROVIDED THAT the following were not and were not intended to be then or now or hereafter granted, bargained, sold, released, conveyed, assigned, transferred, mortgaged, pledged, set over or confirmed under the Mortgage and were, are and shall be expressly excepted from the lien and operation namely: (l) cash, shares of stock and obligations (including bonds, notes and other securities) not hereafter specifically pledged, paid, deposited or delivered under the Mortgage or covenanted so to be; (2) merchandise, equipment, materials or supplies held for the purpose of sale in the usual course of business or for consumption in the operation of any properties of the Company; (3) bills, notes and accounts receivable, and all contracts, leases and operating agreements not specifically pledged under the Mortgage or covenanted so to be; (4) electric energy and other materials or products generated, manufactured, produced or purchased by the Company for sale, distribution or use in the ordinary course of its business; and (5) any property heretofore released pursuant to any provisions of the Mortgage and not heretofore disposed of by the Company; provided, however, that the property and rights expressly excepted from the lien and operation of the Mortgage in the above subdivisions (2) and (3) shall (to the extent permitted by law) cease to be so excepted in the event that the Trustee or a receiver or trustee shall enter upon and take possession of the Mortgaged and Pledged Property in the manner provided in Article XII of the Original Mortgage by reason of the occurrence of a Completed Default as defined in said Article XII. 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 in the Mortgage as aforesaid, or intended so to be, unto the Trustee, and its 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 provisos and covenants as set forth in the Mortgage, this Thirty-third Supplemental Indenture being supplemental to the Mortgage. AND IT IS HEREBY FURTHER CONFIRMED by the Company that all the terms, conditions, provisos, covenants and provisions contained in the Mortgage shall affect and apply to the property in the Mortgage described and conveyed, and to the estates, rights, obligations and duties of the Company and the Trustee and the beneficiaries of the trust with respect to said property, and to the Trustee and its successors in the trust, 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 Mortgage, and had been specifically and at length described in and conveyed to said Trustee by the Original Mortgage as a part of the property therein stated to be conveyed. The Company further covenants and agrees to and with the Trustee and its successor or successors in such trust under the Mortgage, as follows: 5

ARTICLE I THIRTY-FIRST SERIES OF BONDS SECTION 1. (I) There shall be a series of bonds designated "Collateral Series due 2005" (herein sometimes referred to as the "Thirty-first Series"), each of which shall also bear the descriptive title First Mortgage Bond, and the form thereof, which has been established by Resolution of the Board of Directors of the Company, is set forth on Exhibit D hereto. Bonds of the Thirty-first Series shall be issued as fully registered bonds in denominations of One Thousand Dollars and, at the option of the Company, any amount in excess thereof (the exercise of such option to be evidenced by the execution and delivery thereof) and shall be dated as in Section 10 of the Mortgage provided. Each bond of the Thirty-first Series shall mature on May 5, 2005 and shall bear interest, be redeemable and have such other terms and provisions as set forth below. (II) The Bonds of the Thirty-first Series shall have the following terms and characteristics: (a) the Bonds of the Thirty-first Series shall be initially authenticated and delivered under the Indenture in the aggregate principal amount of $350,000,000; (b) the Bonds of the Thirty-first Series shall bear interest at the rate of eight per centum (8%) per annum; interest on such bonds shall accrue from and including the date of the initial authentication and delivery thereof, except as otherwise provided in the form of bond attached hereto as Exhibit D; interest on such bonds shall be payable on each Interest Payment Date and at Maturity (as each of such terms is hereafter defined); and interest on such bonds during any period less than one year for which payment is made shall be computed in accordance with the Credit Agreement (as hereinafter defined); (c) the principal of and premium, if any, and interest on each bond of the Thirty-first Series payable at Maturity shall be payable upon presentation thereof at the office or agency of the Company in the Borough of Manhattan, The City of New York, in such coin or currency as at the time of payment is legal tender for public and private debts. The interest on each Bond of the Thirty-first Series (other than interest payable at Maturity) shall be payable directly to the registered owners thereof; (d) the Bonds of the Thirty-first Series shall not be redeemable, in whole or in part, at the option of the Company; (e) (i) the Bonds of the Thirty-first Series are to be issued and delivered to the Administrative Agent (as hereinafter defined) in order to provide the benefit of the lien of the Mortgage as security for the obligation of the Company under the Credit Agreement to pay the Obligations (as hereinafter defined), to the extent and subject to the limitations set forth in clauses (iii) and (iv) of this subdivision; (ii) upon the earliest of (A) the occurrence of an Event of Default under the Credit Agreement, and further upon the condition that, in accordance with the terms of 6

the Credit Agreement, the Commitments (as hereinafter defined) shall have been or shall have terminated and any Loans (as hereinafter defined) outstanding shall have been declared to be or shall have otherwise become due and payable immediately and the Administrative Agent shall have delivered to the Company a notice demanding redemption of the Bonds of the Thirty-first Series which notice states that it is being delivered pursuant to Article VII of the Credit Agreement, (B) the occurrence of an Event of Default under clause (g) or (h) of Article VII of the Credit Agreement, and (C) May 5, 2005, then all Bonds of the Thirty-first Series shall be redeemed or paid immediately at the principal amount thereof plus accrued interest to the date of redemption or payment; (iii) the obligation of the Company to pay the accrued interest on Bonds of the Thirty-first Series on any Interest Payment Date prior to Maturity (a) shall be deemed to have been satisfied and discharged in full in the event that all amounts then due in respect of the Obligations shall have been paid or (b) shall be deemed to remain unsatisfied in an amount equal to the aggregate amount then due in respect of the Obligations and remaining unpaid (not in excess, however, of the amount otherwise then due in respect of interest on the Bonds of the Thirty-first Series); (iv) the obligation of the Company to pay the principal of and accrued interest on Bonds of the Thirty-first Series at or after Maturity (x) shall be deemed to have been satisfied and discharged in full in the event that all amounts then due in respect of the Obligations shall have been paid or (y) shall be deemed to remain unsatisfied in an amount equal to the aggregate amount then due in respect of the Obligations and remaining unpaid (not in excess, however, of the amount otherwise then due in respect of principal of and accrued interest on the Bonds of the Thirty-first Series). (v) the Trustee shall be entitled to presume that the obligation of the Company to pay the principal of and interest on the Bonds of the Thirty-first Series as the same shall become due and payable shall have been fully satisfied and discharged unless and until it shall have received a written notice from the Administrative Agent, signed by an authorized officer thereof, stating that the principal of and/or interest on the Bonds of the Thirty-first Series has become due and payable and has not been fully paid, and specifying the amount of funds required to make such payment; (f) no service charge shall be made for the registration of transfer or exchange of Bonds of the Thirty-first Series; (g) in the event of an application by the Administrative Agent for a substituted Bond of the Thirty-first Series pursuant to Section 16 of the Original Mortgage, the Administrative Agent shall not be required to provide any indemnity or pay any expenses or charges as contemplated in said Section 16; and (h) the Bonds of the Thirty-first Series shall have such other terms as are set forth in the form of bond attached hereto as Exhibit D. Anything in this Supplemental Indenture or in the Bonds of the Thirty-first Series to the contrary notwithstanding, if, at the time of the Maturity of such Bonds, the stated 7

aggregate principal amount of such Bonds then Outstanding shall exceed the aggregate Revolving Credit Exposures (as hereinafter defined), the aggregate principal amount of such Bonds shall be deemed to have been reduced by the amount of such excess. (III) For all purposes of this Thirty-third Supplemental Indenture, except as otherwise expressly provided or unless the context otherwise requires, the terms defined below shall have the meanings specified: "ADMINISTRATIVE AGENT" means The Bank of New York, in its capacity as Administrative Agent under the Credit Agreement. "BOND DELIVERY AGREEMENT" means the Bond Delivery Agreement, dated May 6, 2004 between the Company and the Administrative Agent. "CREDIT AGREEMENT" means the Credit Agreement, dated as of May 21, 2002, among the Company, the banks parties thereto, Keybank National Association and Washington Mutual Bank, as Co-Agents, U.S. Bank, National Association, as Managing Agent, Fleet National Bank and Wells Fargo Bank, as Documentation Agents, Union Bank of California, N.A., as Syndication Agent, and The Bank of New York as Administrative Agent and Issuing Bank, as amended, supplemented or otherwise modified from time to time, including that certain Amendment No. 1, dated as of May 13, 2003, among the Company, the banks parties thereto, Washington Mutual Bank, as Managing Agent, Fleet National Bank, Keybank National Association, U.S. Bank, National Association and Wells Fargo Bank, as Documentation Agents, Union Bank of California, N.A., as Syndication Agent, and The Bank of New York, as Administrative Agent and Issuing Bank, Amendment No. 2, dated as of November 25, 2003 among the Company, the banks party thereto, Washington Mutual Bank, as Managing Agent, Fleet National Bank, KeyBank National Association, U.S. Bank, National Association and Wells Fargo Bank, as Documentation Agents, Union Bank of California, N.A, as Syndication Agent, and The Bank of New York, as Administrative Agent and issuing Bank and Amendment No. 3, dated as of May 6, 2004 among the Company, the banks party thereto, Bank of America, N.A. and Commerzbank AG, as Managing Agents, KeyBank National Association and U.S. Bank, National Association, as Documentation Agents, Wells Fargo Bank, as Documentation Agent and Issuing Bank, Union Bank of California, N.A. as Syndication Agent and Issuing Bank, and The Bank of New York, as Administrative Agent and Issuing Bank. "INTEREST PAYMENT DATE" means June 30, 2004, September 30, 2004, December 31, 2004 and March 31, 2005. "MATURITY" means the date on which the principal of the Bonds of the Thirty-first Series becomes due and payable, whether at stated maturity, upon redemption or acceleration, or otherwise. "OBLIGATIONS" shall have the meaning specified in the Bond Delivery Agreement. "COMMITMENTS", "LOANS" and "REVOLVING CREDIT EXPOSURES" shall have the meanings specified in the Credit Agreement: 8

A copy of the Credit Agreement is on file at the office of the Administrative Agent at One Wall Street, 18th Floor, New York, NY 10286 and at the office of the Company at 1411 East Mission Avenue, Spokane, WA 99202. (IV) Upon the delivery of this Thirty-third Supplemental Indenture, bonds of the Thirty-first Series in an aggregate principal amount not to exceed $350,000,000 are to be issued and will be Outstanding, in addition to $343,500,000 aggregate principal amount of bonds of prior series Outstanding at the date of delivery of this Thirty-third Supplemental Indenture. ARTICLE II MISCELLANEOUS PROVISIONS SECTION 1. The terms defined in the Original Mortgage shall, for all purposes of this Thirty-third Supplemental Indenture, have the meanings specified in the Original Mortgage. SECTION 2. The Trustee hereby confirms its acceptance of the trusts in the Original Mortgage declared, provided, created or supplemented and agrees to perform the same upon the terms and conditions in the Original Mortgage set forth, including the following: The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Thirty-third Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made by the Company solely. Each and every term and condition contained in Article XVI of the Original Mortgage, shall apply to and form part of this Thirty-third Supplemental Indenture with the same force and effect as if the same were herein set forth in full, with such omissions, variations and insertions, if any, as may be appropriate to make the same conform to the provisions of this Thirty-third Supplemental Indenture. SECTION 3. Whenever in this Thirty-third Supplemental Indenture either of the parties hereto is named or referred to, this shall, subject to the provisions of Articles XV and XVI of the Original Mortgage be deemed to include the successors and assigns of such party, and all the covenants and agreements in this Thirty-third Supplemental Indenture contained by or on behalf of the Company, or by or on behalf of the Trustee, or either of them, shall, subject as aforesaid, bind and inure to the respective benefits of the respective successors and assigns of such parties, whether so expressed or not. SECTION 4. Nothing in this Thirty-third Supplemental Indenture, expressed or implied, is intended, or shall be construed, to confer upon, or to give to, any person, firm or corporation, other than the parties hereto and the holders of the bonds and coupons Outstanding under the Mortgage, any right, remedy or claim under or by reason of this Thirty-third Supplemental Indenture or any covenant, condition, stipulation, promise or agreement hereof, and all the covenants, conditions, stipulations, promises and agreements in this Thirty-third Supplemental Indenture contained by or on behalf of the Company shall be for the sole and exclusive benefit of the parties hereto, and of the holders of the bonds and of the coupons Outstanding under the Mortgage. 9

SECTION 5. This Thirty-third Supplemental Indenture shall be executed in several counterparts, each of which shall be an original and all of which shall constitute but one and the same instrument. SECTION 6. The titles of the several Articles of this Thirty-third Supplemental Indenture shall not be deemed to be any part thereof. ------------------------ 10

IN WITNESS WHEREOF, on the 6th day of May, 2004, AVISTA CORPORATION has caused its corporate name to be hereunto affixed, and this instrument to be signed and sealed by its President or one of its Vice Presidents, and its corporate seal to be attested by its Corporate Secretary or one of its Assistant Corporate Secretaries for and in its behalf, all in The City of Spokane, Washington, as of the day and year first above written; and on the 6th day of May, 2004, CITIBANK, N.A., has caused its corporate name to be hereunto affixed, and this instrument to be signed and sealed by its President or one of its Vice Presidents or one of its Senior Trust Officers or one of its Trust Officers and its corporate seal to be attested by one of its Vice Presidents or one of its Trust Officers, all in The City of New York, New York, as of the day and year first above written. AVISTA CORPORATION By /s/ MALYN K. MALQUIST ---------------------------------- Senior Vice President Attest: /s/ SUSAN Y. MINER - ------------------------------------ Assistant Corporate Secretary Executed, sealed and delivered by AVISTA CORPORATION in the presence of: /s/ DIANE C. THOREN - ------------------------------------ /s/ MARJORIE N. BJORNBERG - ------------------------------------ 11

CITIBANK, N.A., AS TRUSTEE By /s/ WAFAA ORFY ---------------------------------- Wafaa Orfy, Vice President Attest: /s/ NANCY FORTE - ------------------------------------ Nancy Forte, Assistant Vice President Executed, sealed and delivered by CITIBANK, N.A., as trustee. in the presence of: /s/ R.T. KIRCHNER - ------------------------------------ R. T. Kirchner Vice President /s/ JOHN J. BYRNES - ------------------------------------ John J. Byrnes Vice President 12

STATE OF WASHINGTON ) ) ss.: COUNTY OF SPOKANE ) On the 6th day of May 2004, before me personally appeared Malyn Malquist, to me known to be a Senior Vice President of AVISTA CORPORATION, one of the corporations that executed the within and foregoing instrument, and acknowledged said instrument to be the free and voluntary act and deed of said Corporation for the uses and purposes therein mentioned and on oath stated that he was authorized to execute said instrument and that the seal affixed is the corporate seal of said Corporation. On the 6th day of May 2004, before me, Sue Miner, a Notary Public in and for the State and County aforesaid, personally appeared Malyn Malquist, known to me to be a Senior Vice President of AVISTA CORPORATION, one of the corporations that executed the within and foregoing instrument and acknowledged to me that such Corporation executed the same. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year first above written. /s/ SUE MINER -------------------------------- Notary Public Sue Miner Notary Public Commission Expires August 20, 2007 State of Washington 13

STATE OF NEW YORK ) ) ss.: COUNTY OF NEW YORK ) On the 6th day of May 2004, before me personally appeared Wafaa Orfy, to me known to be a Vice President of CITIBANK, N.A., one of the corporations that executed the within and foregoing instrument, and acknowledged said instrument to be the free and voluntary act and deed of said Corporation for the uses and purposes therein mentioned and on oath stated that he was authorized to execute said instrument and that the seal affixed is the corporate seal of said Corporation. On the 6th day of May 2004, before me, a Notary Public in and for the State and County aforesaid, personally appeared Wafaa Orfy, known to me to be an Vice President of CITIBANK, N.A., one of the corporations that executed the within and foregoing instrument and acknowledged to me that such Corporation executed the same. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year first above written. /s/ NANETTE MURPHY ------------------------------------ Notary Public Nanette Murphy Notary Public, State of New York No. 01MU6086415 Qualified in Kings County Commission Expires 1/21/07 14

EXHIBIT A MORTGAGE, SUPPLEMENTAL INDENTURES AND SERIES OF BONDS ---------------------------------------------------------------------------------------------------------- MORTGAGE OR DATED AS OF SERIES PRINCIPAL PRINCIPAL SUPPLEMENTAL ----------- ------ AMOUNT AMOUNT INDENTURE NO. DESIGNATION ISSUED OUTSTANDING ------------------- --- ----------- ---------- ------------------ ------------------------------------------------------------------------------------------------------------ Original June 1, 1939 1 3-1/2% Series due 1964 $22,000,000 None ------------------------------------------------------------------------------------------------------------ First October 1, 1952 2 3-3/4% Series due 1982 30,000,000 None ------------------------------------------------------------------------------------------------------------ Second May 1, 1953 3 3-7/8% Series due 1983 10,000,000 None ------------------------------------------------------------------------------------------------------------ Third December 1, 1955 None ------------------------------------------------------------------------------------------------------------ Fourth March 15, 1957 None ------------------------------------------------------------------------------------------------------------ Fifth July 1, 1957 4 4-7/8% Series due 1987 30,000,000 None ------------------------------------------------------------------------------------------------------------ Sixth January 1, 1958 5 4-1/8% Series due 1988 20,000,000 None ------------------------------------------------------------------------------------------------------------ Seventh August 1, 1958 6 4-3/8% Series due 1988 15,000,000 None ------------------------------------------------------------------------------------------------------------ Eighth January 1, 1959 7 4-3/4% Series due 1989 15,000,000 None ------------------------------------------------------------------------------------------------------------ Ninth January 1, 1960 8 5-3/8% Series due 1990 10,000,000 None ------------------------------------------------------------------------------------------------------------ Tenth April 1, 1964 9 4-5/8% Series due 1994 30,000,000 None ------------------------------------------------------------------------------------------------------------ Eleventh March 1,1965 10 4-5/8% Series due 1995 10,000,000 None ------------------------------------------------------------------------------------------------------------ Twelfth May 1, 1966 None ------------------------------------------------------------------------------------------------------------ Thirteenth August 1, 1966 11 6 % Series due 1996 20,000,000 None ------------------------------------------------------------------------------------------------------------ Fourteenth April 1, 1970 12 9-1/4% Series due 2000 20,000,000 None ------------------------------------------------------------------------------------------------------------ Fifteenth May 1, 1973 13 7-7/8% Series due 2003 20,000,000 None ------------------------------------------------------------------------------------------------------------ Sixteenth February 1, 1975 14 9-3/8% Series due 2005 25,000,000 None ------------------------------------------------------------------------------------------------------------ Seventeenth November 1, 1976 15 8-3/4% Series due 2006 30,000,000 None ------------------------------------------------------------------------------------------------------------ Eighteenth June 1, 1980 None ------------------------------------------------------------------------------------------------------------ Nineteenth January 1, 1981 16 14-1/8% Series due 40,000,000 None 1991 ------------------------------------------------------------------------------------------------------------ Twentieth August 1, 1982 17 15-3/4% Series due 60,000,000 None 1990-1992 ------------------------------------------------------------------------------------------------------------ Twenty-First September 1, 18 13-1/2% Series due 60,000,000 None 1983 2013 ------------------------------------------------------------------------------------------------------------ Twenty-Second March 1, 1984 19 13-1/4% Series due 60,000,000 None 1994 ------------------------------------------------------------------------------------------------------------ Twenty-Third December 1, 1986 20 9-1/4% Series due 2016 80,000,000 None ------------------------------------------------------------------------------------------------------------ Twenty-Fourth January 1, 1988 21 10-3/8% Series due 50,000,000 None 2018 ------------------------------------------------------------------------------------------------------------ Twenty-Fifth October 1, 1989 22 7-1/8% Series due 2013 66,700,000 None ------------------------------------------------------------------------------------------------------------ 23 7-2/5% Series due 2016 17,000,000 None ------------------------------------------------------------------------------------------------------------ Twenty-Sixth April 1, 1993 24 Secured Medium-Term 250,000,000 89,500,000 Notes, Series A ($250,000,000 authorized) ------------------------------------------------------------------------------------------------------------ Twenty-Seventh January 1, 1994 25 Secured Medium-Term 161,000,000 59,000,000 Notes, Series B ($250,000,000 authorized) ------------------------------------------------------------------------------------------------------------ Twenty-Eighth September 1, 26 Collateral Series due 220,000,000 None 2001 2002 ------------------------------------------------------------------------------------------------------------ Twenty-Ninth December 1, 2001 27 7.75% Series due 2007 150,000,000 150,000,000 ------------------------------------------------------------------------------------------------------------ Thirtieth May 1, 2002 28 Collateral Series due 225,000,000 None 2003 ------------------------------------------------------------------------------------------------------------ Thirty-First May 1, 2003 29 Collateral Series due 245,000,000 245,000,000* 2004 ------------------------------------------------------------------------------------------------------------ Thirty-Second September 1, 30 6.125% Series due 2013 45,000,000 45,000,000 2003 ------------------------------------------------------------------------------------------------------------ *To be retired in connection with the authentication and delivery of the bonds of the Thirty-first series. A-1

EXHIBIT B FILING AND RECORDING OF THIRTY-SECOND SUPPLEMENTAL INDENTURE FILING IN STATE OFFICES ------------------------------------------------------------------------------------------------------- STATE OFFICE OF DATE FINANCING STATEMENT DOCUMENT NUMBER ------------------------------------------------------------------------------------------------------- Washington Secretary of State 12/3/03 2003-337-0875-2 ------------------------------------------------------------------------------------------------------- Idaho Secretary of State 12/3/03 B-2003-0955960-8 ------------------------------------------------------------------------------------------------------- Montana Secretary of State 12/3/03 75787579 ------------------------------------------------------------------------------------------------------- Oregon Secretary of State 12/4/03 6412661 ------------------------------------------------------------------------------------------------------- California Secretary of State 12/4/03 334461026 ------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- RECORDING IN COUNTY OFFICES --------------------------------------------------------------------------------------------------------------- COUNTY OFFICE OF FINANCING REAL ESTATE MORTGAGE RECORDS STATEMENT DOCUMENT -------------------------------------------------------- NUMBER DATE DOCUMENT NUMBER BOOK PAGE --------------------------------------------------------------------------------------------------------------- WASHINGTON Auditor 12/2/03 271879 N/A N/A N/A Adams --------------------------------------------------------------------------------------------------------------- Asotin Auditor 12/3/03 272936 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Benton Auditor 12/2/03 2003-058985 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Douglas Auditor 12/2/03 3068589 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Ferry Auditor 12/2/03 257712 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Franklin Auditor 12/2/03 1636649 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Garfield Auditor 12/2/03 8317 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Grant Auditor 12/2/03 1139243 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Klickitat Auditor 12/3/03 1042654 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Lewis Auditor 12/3/03 3184912 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Lincoln Auditor 12/2/03 20030431377 83 4201 N/A --------------------------------------------------------------------------------------------------------------- Pend Oreille Auditor 12/12/03 2003-0272789 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Skamania Auditor 12/5/03 151375 255 173 N/A --------------------------------------------------------------------------------------------------------------- Spokane Auditor 12/3/03 5008190 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Stevens Auditor 12/2/03 2003-0016731 304 328 N/A --------------------------------------------------------------------------------------------------------------- Thurston Auditor 12/5/03 3601539 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Whitman Auditor 12/2/03 651354 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- IDAHO Recorder 12/2/03 232558 N/A N/A N/A Benewah --------------------------------------------------------------------------------------------------------------- Bonner Recorder 12/3/03 639856 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Boundary Recorder 12/2/03 213391 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Clearwater Recorder 12/4/03 194596 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Idaho Recorder 12/2/03 432896 N/A N/A N/A ---------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------- RECORDING IN COUNTY OFFICES --------------------------------------------------------------------------------------------------------------- COUNTY OFFICE OF FINANCING REAL ESTATE MORTGAGE RECORDS STATEMENT DOCUMENT -------------------------------------------------------- NUMBER DATE DOCUMENT NUMBER BOOK PAGE --------------------------------------------------------------------------------------------------------------- Kootenai Recorder 12/2/03 1846100 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Latah Recorder 12/2/03 483092 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Lewis Recorder 12/2/03 130286 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Nez Perce Recorder 12/2/03 699272 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Shoshone Recorder 12/2/03 413689 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- MONTANA Big Horn Clerk & Recorder 12/3/03 330379 73 503 N/A --------------------------------------------------------------------------------------------------------------- Broadwater Clerk & Recorder 12/3/03 147052 73 462 N/A --------------------------------------------------------------------------------------------------------------- Golden Valley Clerk & Recorder 12/3/03 76130 M 10893 N/A --------------------------------------------------------------------------------------------------------------- Meagher Clerk & Recorder 12/3/03 113115 F57 792 N/A --------------------------------------------------------------------------------------------------------------- Mineral Clerk & Recorder 12/3/03 94870 N/A --------------------------------------------------------------------------------------------------------------- Rosebud Clerk & Recorder 12/3/03 95410 107 171 N/A --------------------------------------------------------------------------------------------------------------- Sanders Clerk & Recorder 12/3/03 43743 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Stillwater Clerk & Recorder 12/3/03 315691 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Treasure Clerk & Recorder 12/3/03 78585 N/A --------------------------------------------------------------------------------------------------------------- Wheatland Clerk & Recorder 12/3/03 102318 N/A --------------------------------------------------------------------------------------------------------------- Yellowstone Clerk & Recorder 12/3/03 3266239 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- OREGON Recorder N/A Douglas 12/3/03 2003-032540 --------------------------------------------------------------------------------------------------------------- Jackson Recorder 12/8/03 03-82751 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Josephine Recorder 12/4/03 2003-030037 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Klamath Recorder 12/9/03 N/A M03 89770 N/A --------------------------------------------------------------------------------------------------------------- Union Recorder 12/3/03 20038068 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- Wallowa Recorder 12/3/03 49615 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- CALIFORNIA El Dorado Recorder 12/9/03 2003-012342200 N/A N/A N/A --------------------------------------------------------------------------------------------------------------- B-2

EXHIBIT C PROPERTY ADDITIONS (A) Miscellaneous Fee-Owned Real Estate in the States of Washington and Idaho: 1. Cabinet Gorge Mitigation properties; Bonner County, State of Idaho: (a) Lots 8 and 9, Block 10, Unit 2 of Granite Creek Properties in Sec. 25, T. 55 N., R. 1 West B.M.; (b) Lot 17, Block 10, Unit 2 of Granite Creek Properties in Sec. 25, T. 55 N., R. 1 West B.M.; (c) Lot 18, Block 1, Unit 2 of Granite Creek Properties in Sec. 25, T. 55 N., R. 1 West B.M.; (d) Lot 11, Block 10, Unit 2 of Granite Creek Properties in Sec. 25, T. 55 N., R. 1 West B.M.; (e) Lot 5, Block 10, Unit 2 of Granite Creek Properties in Sec. 25, T. 55 N., R. 1 West B.M.; (f) Lots 19, 20 and 21, Block 10, Unit 2 of Granite Creek Properties in Section 25, T. 55 N., R. 1 West B.M. 2. Boulder transmission corridor; Spokane County, State of Washington: Tract W of Amended Survey filed in Book 92, Page 15E, Auditor No. 5032496, situate in the N/2 of Sec. 5, GT. 25 N., R. 45 East, W.M.

EXHIBIT D (FORM OF BOND) THIS BOND IS NON-TRANSFERABLE, EXCEPT TO A SUCCESSOR ADMINISTRATIVE AGENT UNDER THE CREDIT AGREEMENT REFERRED TO HEREIN. AVISTA CORPORATION First Mortgage Bond, Collateral Series due 2005 REGISTERED REGISTERED NO. _________________ $___________________ AVISTA CORPORATION, a corporation of the State of Washington (hereinafter called the Company), for value received, hereby promises to pay to , as Administrative Agent under the Credit Agreement hereinafter referred to or registered assigns, on May 5, 2005, DOLLARS and to pay the registered owner hereof interest thereon from May 6, 2004 in arrears on June 30, 2004, September 30, 2004, December 31, 2004 and March 31, 2005 (each such date being hereinafter called an "Interest Payment Date") and at Maturity (as hereinafter defined), at the rate of eight per centum (8%) per annum computed as provided in the Thirty-third Supplemental Indenture hereinafter referred to, until the Company's obligation with respect to the payment of such principal shall have been discharged. The principal of and premium, if any, and interest on this bond payable at Maturity shall be payable upon presentation hereof at the office or agency of the Company in the Borough of Manhattan, The City of New York, 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. The interest on this bond (other than interest payable at Maturity) shall be paid directly to the registered owner hereof. Interest payable at Maturity shall be paid to the person to whom principal shall be paid. As used herein, the term "Maturity" shall mean the date on which the principal of this bond becomes due and payable, whether at stated maturity, upon redemption or acceleration, or otherwise. This bond is one of an issue of bonds of the Company issuable in series and is one of a series known as its First Mortgage Bonds, Collateral Series due 2005, all bonds of all such issue of series being issued and issuable under and equally secured (except insofar as any sinking

or other fund, established in accordance with the provisions of the Mortgage hereinafter mentioned, may afford additional security for the bonds of any particular series) by a Mortgage and Deed of Trust, dated as of June 1, 1939, executed by the Company (formerly known as The Washington Water Power Company) to City Bank Farmers Trust Company and Ralph E. Morton, as Trustees (Citibank, N.A., successor Trustee to both said Trustees). Such mortgage and deed of trust has been amended and supplemented by various supplemental indentures, including the Thirty-third Supplemental Indenture, dated as of May 1, 2004 (the "Thirty-third Supplemental Indenture") and, as so amended and supplemented, is herein called the "Mortgage". Reference is made to the Mortgage for a description of the property mortgaged and pledged, the nature and extent of the security, the rights of the holders of the bonds and of the Trustee in respect thereof, the duties and immunities of the Trustee and the terms and conditions upon which the bonds are and are to be secured and the circumstances under which additional bonds may be issued. By its acceptance of this bond, the holder hereof is deemed to have consented and agreed to all of the terms and provisions of the Mortgage. The Mortgage may be modified or altered by affirmative vote of the holders of at least 60% in principal amount of the bonds outstanding under the Mortgage, considered as one class, or, if the rights of one or more, but less than all, series of bonds then outstanding are to be affected, then such modification or alteration may be effected with the affirmative vote only of 60% in principal amount of the bonds outstanding of the series so to be affected, considered as one class, and, furthermore, for limited purposes, the Mortgage may be modified or altered without any consent or other action of holders of any series of bonds. No modification or alteration shall, however, permit an extension of the Maturity of the principal of, or interest on, this bond or a reduction in such principal or the rate of interest hereon or any other modification in the terms of payment of such principal or interest or the creation of any lien equal or prior to the lien of the Mortgage or deprive the holder of a lien on the mortgaged and pledged property without the consent of the holder hereof. The bonds of this series are not redeemable, in whole or in part, at the option of the Company. The bonds of this series have been issued and delivered to The Bank of New York, as Administrative Agent under the Credit Agreement (as such terms are defined in the Thirty-third Supplemental Indenture) in order to provide the benefit of the lien of the Mortgage as security for the obligation of the Company under the Credit Agreement to pay the Obligations (as so defined), to the extent and subject to the limitations set forth below. Upon the earliest of (A) the occurrence of an Event of Default under the Credit Agreement, and further upon the condition that, in accordance with the terms of the Credit Agreement, the Commitments (as defined in the Thirty-third Supplemental Indenture) shall have been or shall have terminated and any Loans (as so defined) outstanding shall have been declared to be or shall have otherwise become due and payable immediately and the Administrative Agent shall have delivered to the Company a notice demanding redemption of the bonds of this series which notice states that it is being delivered pursuant to Article VII of the Credit Agreement, (B) the occurrence of an Event of Default under clause (g) or (h) of Article VII of the Credit Agreement, and (C) May 5, 2005, then all bonds of this series shall be redeemed or paid D-2

immediately at the principal amount thereof plus accrued interest to the date of redemption or payment. The obligation of the Company to pay the accrued interest on bonds of this series on any Interest Payment Date prior to Maturity (a) shall be deemed to have been satisfied and discharged in full in the event that all amounts then due in respect of the Obligations shall have been paid or (b) shall be deemed to remain unsatisfied in an amount equal to the aggregate amount then due in respect of the Obligations and remaining unpaid (not in excess, however, of the amount otherwise then due in respect of interest on the bonds of this series). The obligation of the Company to pay the principal of and accrued interest on bonds of this series at or after Maturity (x) shall be deemed to have been satisfied and discharged in full in the event that all amounts then due in respect of the Obligations shall have been paid or (y) shall be deemed to remain unsatisfied in an amount equal to the aggregate amount then due in respect of the Obligations and remaining unpaid (not in excess, however, of the amount otherwise then due in respect of principal of and accrued interest on the bonds of this series). Anything in this bond to the contrary notwithstanding, if, at the time of the Maturity of the bonds of this series, the stated aggregate principal amount of such bonds then outstanding shall exceed the aggregate Revolving Credit Exposures (as defined in the Thirty-third Supplemental Indenture), the aggregate principal amount of such bonds shall be deemed to have been reduced by the amount of such excess. The principal hereof may be declared or may become due prior to the stated maturity date on the conditions, in the manner and at the time set forth in the Mortgage, upon the occurrence of a Completed Default as in the Mortgage provided. This bond is non-transferable except as required to effect transfer to any successor administrative agent under the Credit Agreement, any such transfer to be made at the office or agency of the Company in the Borough of Manhattan, The City of New York, upon surrender and cancellation of this bond, together with a written instrument of transfer whenever required by the Company duly executed by the registered owner or by its duly authorized attorney, and, thereupon, a new fully registered bond of the same series for a like principal amount will be issued to the transferee in exchange herefor as provided in the Mortgage. The Company and the Trustee may deem and treat the person in whose name this bond is registered as the absolute owner hereof for the purpose of receiving payment and for all other purposes. In the manner prescribed in the Mortgage, any bonds of this series, upon surrender thereof for cancellation at the office or agency of the Company in the Borough of Manhattan, The City of New York, are exchangeable for a like aggregate principal amount of bonds of the same series of other authorized denominations. No recourse shall be had for the payment of the principal of or interest on this bond against any incorporator or any past, present or future subscriber to the capital stock, stockholder, officer or director of the Company or of any predecessor or successor corporation, as such, either directly or through the Company or any predecessor or successor corporation, D-3

under any rule of law, statute or constitution or by the enforcement of any assessment or otherwise, all such liability of incorporators, subscribers, stockholders, officers and directors being released by the holder or owner hereof by the acceptance of this bond and being likewise waived and released by the terms of the Mortgage. This bond shall not become obligatory until Citibank, N.A., the Trustee under the Mortgage, or its successor thereunder, shall have signed the form of certificate endorsed hereon. IN WITNESS WHEREOF, AVISTA CORPORATION has caused this bond to be signed in its corporate name by its President or one of its Vice Presidents by his signature or a facsimile thereof, and its corporate seal to be impressed or imprinted hereon and attested by its Corporate Secretary or one of its Assistant Corporate Secretaries by his signature or a facsimile thereof. Dated: AVISTA CORPORATION By: -------------------------------- ATTEST: ------------------------------------- D-4

TRUSTEE'S CERTIFICATE This bond is one of the bonds, of the series herein designated, described or provided for in the within-mentioned Mortgage. CITIBANK, N.A. Trustee By --------------------------------- Authorized Officer D-5

FOR VALUE RECEIVED the undersigned hereby sells, assigns and transfers unto - ------------------------------------------------------- [please insert social security or other identifying number of assignee] - ------------------------------------------------------- [please print or typewrite name and address of assignee] - ------------------------------------------- the within bond of AVISTA CORPORATION and does hereby irrevocably constitute and appoint ________________________, Attorney, to transfer said bond on the books of the within-mentioned Company, will full power of substitution in the premises. Dated: --------------- ----------------------------- Notice: The signature to this assignment must correspond with the name as written upon the face of the bond in every particular without alteration or enlargement or any change whatsoever. D-6

Exhibit 4(h) ================================================================================ AMENDMENT NO. 2 Dated as of November 25, 2003 to the CREDIT AGREEMENT dated as of May 21, 2002 among AVISTA CORPORATION, THE BANKS PARTY HERETO, WASHINGTON MUTUAL BANK, as Managing Agent, FLEET NATIONAL BANK, KEYBANK NATIONAL ASSOCIATION, U.S. BANK, NATIONAL ASSOCIATION and WELLS FARGO BANK, as Documentation Agents, UNION BANK OF CALIFORNIA, N.A., as Syndication Agent, and THE BANK OF NEW YORK, as Administrative Agent and Issuing Bank --------------- BNY CAPITAL MARKETS, INC. and UNION BANK OF CALIFORNIA, N.A. Lead Arrangers and Book Managers ================================================================================

AMENDMENT NO. 2 Dated as of November 25, 2003 to CREDIT AGREEMENT Dated as of May 21, 2002 AVISTA CORPORATION, a Washington corporation, the Banks listed on the signature pages hereof, WASHINGTON MUTUAL BANK, as Managing Agent, FLEET NATIONAL BANK, KEYBANK NATIONAL ASSOCIATION, U.S. BANK, NATIONAL ASSOCIATION and WELLS FARGO BANK, as Documentation Agents, UNION BANK OF CALIFORNIA, N.A., as Syndication Agent, and THE BANK OF NEW YORK, as Administrative Agent and Issuing Bank, agree as follows: 1. CREDIT AGREEMENT. Reference is made to the Credit Agreement, dated as of May 21, 2002, among Avista Corporation, a Washington corporation, the Banks listed in Schedule 2.01 thereto, KeyBank National Association and Washington Mutual Bank, as Co-Agents, U.S. Bank, National Association, as Managing Agent, Fleet National Bank and Wells Fargo Bank, as Documentation Agents, Union Bank of California, N.A., as Syndication Agent, and The Bank of New York, as Administrative Agent and Issuing Bank, as amended by that certain Amendment No. 1 dated as of May 13, 2003 to the Credit Agreement (as so amended, the "CREDIT AGREEMENT"). Terms defined in the Credit Agreement and not otherwise defined herein are used herein as therein defined. 2. AMENDMENTS. Subject to satisfaction of the conditions precedent set forth in Section 4 below, effective as of the date hereof (the "EFFECTIVE DATE"), the Credit Agreement shall be amended as follows: (a) Section 1.01 of the Credit Agreement shall be amended by inserting the following defined terms in alphabetical order: "FASB INTERPRETATION NO. 46" shall mean Financial Accounting Standards Board (FASB) Interpretation No. (FIN) 46, Consolidation of Variable Interest Entities, an Interpretation of Accounting Research Bulletin No. 51. "SFAS NO. 150" shall mean Financial Accounting Standards Board (FASB) Statement of Financial Accounting Standards No. 150, Accounting for Certain Financial Instruments with Characteristics of Both Liabilities and Equity. (b) Section 6.05 of the Credit Agreement shall be amended by inserting the following at the end of such section: 1

Notwithstanding anything herein to the contrary, the Borrower's compliance with the terms of this Section 6.05 shall be calculated without giving effect to SFAS No. 150 and FASB Interpretation No. 46. (b) Section 6.06 of the Credit Agreement shall be amended by inserting the following at the end of such section: Notwithstanding anything herein to the contrary, the Borrower's compliance with the terms of this Section 6.06 shall be calculated without giving effect to SFAS No. 150 and FASB Interpretation No. 46. 3. REPRESENTATIONS AND WARRANTIES. In order to induce the each Bank and the Issuing Bank to enter into this Amendment, the Borrower represents and warrants as follows: (a) The Borrower has the corporate power and authority (i) to execute and deliver the this Amendment and (ii) to perform its obligations under this Amendment and the Credit Agreement as amended hereby. (b) The execution and delivery by the Borrower of this Amendment, the performance by the Borrower of its obligations under this Amendment and the Credit Agreement as amended hereby (collectively, the "Transactions") (a) have been duly authorized by all requisite corporate and, if required, stockholder action and (b) will not (i) violate (A) any provision of law, statute, rule or regulation the violation of which could reasonably be expected to impair the validity and enforceability of this Amendment or the Credit Agreement as amended hereby or materially impair the rights of or benefits available to the Banks or the Issuing Bank under this Amendment, the Credit Agreement as amended hereby or the other Loan Documents, or of the certificate or articles of incorporation or other constitutive documents or by laws of the Borrower or any Significant Subsidiary, (B) any order of any Governmental Authority the violation of which could reasonably be expected to impair the validity or enforceability of this Amendment or the Credit Agreement as amended hereby, or materially impair the rights of or benefits available to the Banks or the Issuing Bank under this Amendment or the Credit Agreement as amended hereby, or (C) any provision of any indenture or other material agreement or instrument evidencing or relating to borrowed money to which the Borrower or any Significant Subsidiary is a party or by which any of them or any of their property is or may be bound in a manner which could reasonably be expected to impair the validity and enforceability of this Amendment or any the Credit Agreement as amended hereby or materially impair the rights of or benefits available to the Banks or the Issuing Bank under this Amendment or the Credit Agreement as amended hereby, (ii) be in conflict with, result in a breach of or constitute (alone or with notice or lapse of time or both) a default under any such indenture, agreement or other instrument in a manner which could reasonably be expected to impair the validity and enforceability of this Amendment or the Credit Agreement as amended hereby or materially impair the rights of or benefits available to the Banks or the Issuing Bank under this Amendment or the Credit Agreement as amended hereby or (iii) result in the creation or imposition under any such indenture, agreement or other instrument of any Lien upon or with respect to any property or assets now owned or hereafter acquired by the Borrower. 2

(c) This Amendment has been duly executed and delivered by the Borrower and constitutes, and the Credit Agreement as amended hereby will constitute, legal, valid and binding obligations of the Borrower enforceable against the Borrower in accordance with its terms. (d) No action, consent or approval of, registration or filing with or any other action by any Governmental Authority is or will be required in connection with the Transactions, except such as have been made or obtained and are in full force and effect. (e) Each representation and warranty made in the Loan Documents is true and correct at and as of the date hereof after giving effect to this Amendment, except to the extent such representations and warranties expressly relate to an earlier date. (f) No Default or Event of Default has occurred and is continuing after giving effect to this Amendment. 4. CONDITIONS TO EFFECTIVENESS. The amendments provided for in Section 2 above shall become effective as of the Effective Date, but shall not become effective as of such date unless and until each of the following conditions precedent shall have been satisfied: (a) The Administrative Agent shall have received each of the following, in form and substance satisfactory to it: (i) A certificate, dated the date of this Amendment and signed by a Financial Officer of the Borrower, confirming compliance with the conditions precedent set forth in paragraphs (e) and (f) of Section 3 hereof. (ii) Evidence satisfactory to the Administrative Agent that this Amendment has been executed and delivered by all parties hereto. (b) All legal matters incident to this Amendment and the Credit Agreement as amended hereby shall be reasonably satisfactory to the Administrative Agent, the Banks, the Issuing Bank and their respective legal counsel. 5. CONFIRMATION OF AMENDED AGREEMENT. The Credit Agreement as amended by this Amendment is and shall continue to be in full force and effect and is hereby in all respects confirmed, approved and ratified. 6. GOVERNING LAW. This Amendment shall be construed in accordance with and governed by the law of the State of New York. 7. COUNTERPARTS. This Amendment may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto were upon the same instrument. 3

8. HEADINGS. Section headings in this Amendment are included herein for convenience and reference only and shall not constitute a part of this Amendment for any other purpose. [THE NEXT PAGE IS THE SIGNATURE PAGE] 4

WITNESS the due execution hereof as of the date first above written. AVISTA CORPORATION By: /s/ DAVID A. BRUKARDT -------------------------------------- Name: David A. Brukardt Title: Vice President & Treasurer

THE BANK OF NEW YORK, as Administrative Agent, Issuing Bank and a Bank By: /s/ RAYMOND J. PALMER ------------------------------------ Name: Raymond J. Palmer Title: Vice President

UNION BANK OF CALIFORNIA, N.A., as Syndication Agent and a Bank By: /s/ KAREN ELLIOTT ------------------------------------ Name: Karen Elliott Title: Assistant Vice President

FLEET NATIONAL BANK, as Documentation Agent and a Bank By: /s/ MARIA DE FARIA E MAIA ------------------------------------ Name: Maria de Faria e Maia Title: Managing Director

KEYBANK NATIONAL ASSOCIATION, as Documentation Agent and a Bank By: /s/ KEVEN D. SMITH -------------------------------------- Name: Keven D. Smith Title: Vice President

U.S. BANK, NATIONAL ASSOCIATION, as Documentation Agent and a Bank By: /S/ WILFRED JACK ------------------------------------ Name: Wilfred Jack Title: Vice President

WELLS FARGO BANK, as Documentation Agent and a Bank By: /s/ TOM BEIL ------------------------------------ Name: Tom Beil Title: Vice President

WASHINGTON MUTUAL BANK, as Managing Agent and a Bank By: /s/ RICHARD AMENY, JR. ------------------------------------ Name: Richard Ameny, Jr. Title: Vice President

BANK HAPOALIM B.M., as a Bank By: /s/ MARC BOSC ------------------------------ Name: Marc Bosc Title: Vice President By: LEHROY HACKETT ------------------------------ Name: Lehroy Hackett Title: VP

Exhibit 4(i) ================================================================================ AMENDMENT NO. 3 Dated as of May 6, 2004 to the CREDIT AGREEMENT dated as of May 21, 2002 among AVISTA CORPORATION, THE BANKS PARTY HERETO, BANK OF AMERICA, N.A., COMMERZBANK AG and WASHINGTON MUTUAL BANK, as Managing Agents KEYBANK NATIONAL ASSOCIATION, U.S. BANK, NATIONAL ASSOCIATION and WELLS FARGO BANK, as Documentation Agents, UNION BANK OF CALIFORNIA, N.A., as Syndication Agent, and THE BANK OF NEW YORK, as Administrative Agent --------------- BNY CAPITAL MARKETS, INC. and UNION BANK OF CALIFORNIA, N.A. Co-Lead Arrangers and Co-Book Managers ================================================================================

AMENDMENT NO. 3 Dated as of May 6, 2004 to CREDIT AGREEMENT Dated as of May 21, 2002 AVISTA CORPORATION, a Washington corporation, the Banks listed on the signature pages hereof, BANK OF AMERICA, N.A., as Managing Agent, COMMERZBANK AG, as Managing Agent, WASHINGTON MUTUAL BANK, as Managing Agent, KEYBANK NATIONAL ASSOCIATION, as Documentation Agent, U.S. BANK, NATIONAL ASSOCIATION, as Documentation Agent, WELLS FARGO BANK, as Documentation Agent and Issuing Bank, UNION BANK OF CALIFORNIA, N.A., as Syndication Agent and an Issuing Bank, and THE BANK OF NEW YORK, as Administrative Agent and an Issuing Bank, agree as follows: 1. CREDIT AGREEMENT. Reference is made to the Credit Agreement, dated as of May 21, 2002, among Avista Corporation, a Washington corporation, the Banks listed in Schedule 2.01 thereto, KeyBank National Association and Washington Mutual Bank, as Co-Agents, U.S. Bank, National Association, as Managing Agent, Fleet National Bank and Wells Fargo Bank, as Documentation Agents, Union Bank of California, N.A., as Syndication Agent, and The Bank of New York, as Administrative Agent and as Issuing Bank, as amended by that certain Amendment No. 1 dated as of May 13, 2003 to the Credit Agreement and that certain Amendment No. 2 to the Credit Agreement dated as of November 25, 2003 (said credit agreement, as so amended, the "CREDIT AGREEMENT"). Definitions of terms in the Credit Agreement apply to terms that are used and not otherwise defined herein. As used herein, the terms "Bond Delivery Agreement", "First Mortgage Bond", "LC Bank" and "Supplemental Indenture" have the meanings ascribed to such terms in Section 2 hereof and the term "Amendment Documents" means this Amendment, the Bond Delivery Agreement, the First Mortgage Bond and the Supplemental Indenture. 2. AMENDMENTS. Subject to satisfaction of the conditions precedent set forth in Section 4 below, effective as May 6, 2004 (the "EFFECTIVE DATE"), the Credit Agreement shall be amended as follows: (a) The first paragraph of the recital to the Credit Agreement shall be amended by deleting the dollar amount of "$225,000,000" where it appears in the fourth line thereof and replacing it with the dollar amount "350,000,000". (b) The first two sentences of, and the table contained in, the definition of "Applicable Rate" contained in Section 1.01 of the Credit Agreement shall be amended to read as follows: "APPLICABLE RATE" shall mean on any date with respect to the Commitment Fee, Eurodollar Loans, ABR Loans or the LC Participation Fee, the rate per annum set forth in 1

the following table in the "Commitment Fee", "Eurodollar Margin", "ABR Margin" or "LC Participation Fee" column, as applicable, for the Pricing Level in effect for such date. - -------------------------------------------------------------------------------- Pricing Commitment Fee Eurodollar ABR Margin LC Participation Levels Margin Fee - -------------------------------------------------------------------------------- I 0.150% 1.000% 0.000% 1.000% - -------------------------------------------------------------------------------- II 0.250% 1.125% 0.125% 1.125% - -------------------------------------------------------------------------------- III 0.300% 1.375% 0.375% 1.375% - -------------------------------------------------------------------------------- IV 0.375% 1.750% 0.750% 1.750% - -------------------------------------------------------------------------------- V 0.500% 2.500% 1.500% 2.500% - -------------------------------------------------------------------------------- For purposes of the foregoing table: "Pricing Level I" will be applicable for so long as (i) the Senior Debt Rating is BBB+ or higher by S&P and (ii) the Senior Debt Rating is Baa1 or higher by Moody's; "Pricing Level II" will be applicable for so long as (i) the Senior Debt Rating is BBB or higher by S&P, (ii) the Senior Debt Rating is Baa2 or higher by Moody's AND (iii) Pricing Level I is not applicable; "Pricing Level III" will be applicable for so long as (i) the Senior Debt Rating is BBB- or higher by S&P, (ii) the Senior Debt Rating is Baa3 or higher by Moody's AND (iii) Pricing Levels I and II are not applicable; "Pricing Level IV" will be applicable for so long as (i) the Senior Debt Rating is BB+ or higher by S&P, (ii) the Senior Debt Rating is Ba1 or higher by Moody's AND (iii) Pricing Levels I, II, and III are not applicable; and "Pricing Level V" will be applicable for so long as (i) the Senior Debt Rating is less than BB+ by S&P or there is no Senior Debt Rating by S&P or (ii) the Senior Debt Rating is less than Ba1 by Moody's or there is no Senior Debt Rating by Moody's. (c) The definition of "Bond Delivery Agreement" contained in Section 1.01 of the Credit Agreement shall be amended to read as follows: "BOND DELIVERY AGREEMENT" shall mean the Thirty-First Series Bond Delivery Agreement. (d) Clause (a) of the definition of "Commitment" contained in Section 1.01 of the Credit Agreement shall be amended by removing immediately after the words "Section 2.10(b)," the words "increased from time to time pursuant to Section 2.10(d),". (e) The definition of "Expiration Date" contained in Section 1.01 of the Credit Agreement shall be amended by replacing the date "May 11, 2004" with the date "May 5, 2005". 2

(f) The definition of "First Mortgage Bond" contained in Section 1.01 of the Credit Agreement shall be amended to read as follows: "FIRST MORTGAGE BOND" shall mean the Thirty-First Series First Mortgage Bond. (g) The definition of "Issuing Bank" contained in Section 1.01 of the Credit Agreement shall be amended to read as follows: "ISSUING BANK" shall mean, (i) with respect to each Letter of Credit, the LC Bank issuing such Letter of Credit, (ii) in all other cases, as the context may require, each LC Bank, individually, or any or all of the LC Banks, collectively, it being understood and agreed that: (A) the obligation of each LC Bank to issue a Letter of Credit hereunder, and all obligations of each LC Bank with respect to each Letter of Credit issued by it, are its several obligations and not the joint obligations of the LC Banks; (B) for so long as no Event of Default shall have occurred and be continuing, subject to Section 2.15 (insofar as that Section relates to sharing with the Administrative Agent and the Banks), each LC Bank may exercise all of its rights, and receive performance of all of the obligations of the Borrower and the Banks owed to such LC Bank under the Loan Documents (including, without limitation, the right to receive payment of fronting fees, drawing fees, reimbursement for drawings, indemnification for increased costs and taxes and any other indemnification to which it may be entitled, and the right to receive from the Banks payments in respect of their participations in its Letters of Credit) as if such LC Bank were the sole Issuing Bank hereunder, (C) subject to clause (ii)(D) of this definition, at any time any LC Bank has an LC Bank Exposure greater than zero, such LC Bank may demand the deposit of cash collateral under Section 2.05(i) in an amount up to the LC Exposure as of such date plus any accrued or unpaid interest thereon, and (D) during the continuation of an Event of Default, all cash collateral deposited pursuant to Section 2.05(i) shall be shared ratably among the LC Banks in proportion to their respective LC Bank Exposures at the time of the occurrence of such Event of Default. (h) The definition of "Required Banks" contained in Section 1.01 of the Credit Agreement shall be amended to read as follows: "REQUIRED BANKS" shall mean, at any time, Banks having Revolving Credit Exposures representing more than 50.0% of the aggregate Revolving Credit Exposures or, if there shall be no Revolving Credit Exposure, Banks having Commitments representing more than 50.0% of the aggregate Commitments. (i) The definition of "Senior Debt Rating" contained in Section 1.01 of the Credit Agreement shall be amended to read as follows: "SENIOR DEBT RATING" shall mean (i) if the First Mortgage Bond has a principal amount equal or greater to the total Commitments, the rating by Moody's or S&P, as applicable, of the Borrower's senior secured long-term debt obligations, and (ii) if the First Mortgage Bond has a principal amount less than the total Commitments, the rating by Moody's or S&P, as applicable, of the Borrower's senior unsecured long-term debt obligations. 3

(j) The definition of "Supplemental Indenture" contained in Section 1.01 of the Credit Agreement shall be amended to read as follows: "SUPPLEMENTAL INDENTURE" shall mean the Thirty-Third Supplemental Indenture. (k) The following new definitions shall be inserted in the proper alphabetical order in Section 1.01 of the Credit Agreement: "FINANCING SUBSIDIARY" shall mean any Subsidiary of the Borrower created specifically and solely for the purpose of providing financing directly to the Borrower (and no other Subsidiary of the Borrower or other Person) through the issuance by such Subsidiary of debt or equity securities. "LC BANK" shall mean The Bank of New York, Union Bank of California, N.A., or Wells Fargo Bank, acting in its capacity as the issuer of Letters of Credit hereunder, and its successors in such capacity. Each LC Bank may, in its discretion, arrange for one or more Letters of Credit to be issued by Affiliates of such LC Bank, in which case the term "LC Bank" shall include any such Affiliate with respect to Letters of Credit issued by such Affiliate. "LC BANK EXPOSURE" shall mean, with respect to any LC Bank at any time, the sum of (a) the aggregate undrawn amount of all outstanding Letters of Credit issued by such LC Bank at such time plus (b) the aggregate amount of all LC Disbursements by such LC Bank that have not yet been reimbursed by or on behalf of the Borrower at such time. "THIRD AMENDMENT" shall mean Amendment No. 3 dated as of May 6, 2004 to this Agreement. "THIRTY-FIRST SERIES BOND DELIVERY AGREEMENT" shall mean the Bond Delivery Agreement, dated the date of the Third Amendment, between the Borrower and the Administrative Agent. "THIRTY-FIRST SERIES FIRST MORTGAGE BOND" shall mean a bond of the Thirty-First Series issued under the Supplemental Indenture, in a principal amount equal to the total Commitments on the date of the Third Amendment, payable to the Administrative Agent. "THIRTY-THIRD SUPPLEMENTAL INDENTURE" shall mean the Thirty-Third Supplemental Indenture, dated as of May 1, 2004, between the Borrower and Citibank, N.A., as trustee under the First Mortgage. (l) Section 1.01 of the Credit Agreement shall be amended by deleting the following definitions: 4

"FASB INTERPRETATION NO. 46" shall mean Financial Accounting Standards Board (FASB) Interpretation No. (FIN) 46, Consolidation of Variable Interest Entities, an Interpretation of Accounting Research Bulletin No. 51. "SFAS NO. 150" shall mean Financial Accounting Standards Board (FASB) Statement of Financial Accounting Standards No. 150, Accounting for Certain Financial Instruments with Characteristics of Both Liabilities and Equity. (m) Section 1.02 of the Credit Agreement shall be amended by deleting the final sentence thereof and replacing it with the following: Except as otherwise expressly provided herein, all accounting terms not otherwise defined herein shall have the meanings assigned to them in conformity with GAAP as in effect at that time. Financial statements and other information required to be delivered by the Borrower to the Administrative Agent, the Banks and the LC Banks pursuant to SECTIONS 5.04 shall be prepared in accordance with GAAP as in effect at the time of such preparation and calculations in connection with the definitions, covenants and other provisions hereof shall utilize accounting principles and policies in conformity with GAAP as in effect at the time of such preparation. If the Borrower notifies the Administrative Agent that the Borrower requests an amendment to any provision hereof to eliminate the effect of any change occurring after the date hereof in GAAP or in the application thereof on the operation of such provision (or if the Administrative Agent notifies the Borrower that the Required Banks request an amendment to any provision hereof for such purpose), regardless of whether any such notice is given before or after such change in GAAP or in the application thereof, such provision shall be interpreted on the basis of GAAP as in effect at that time until such provision is amended in accordance herewith. (n) The caption to Section 2.10 of the Credit Agreement shall be amended by deleting the words "; INCREASE IN COMMITMENTS" from the end thereof. (o) The first sentence of Section 2.05(b) of the Credit Agreement shall be amended to read as follows: To request the issuance of a Letter of Credit (or the amendment, renewal or extension of an outstanding Letter of Credit), the Borrower shall hand deliver or telecopy (or transmit by electronic communication, if arrangements for doing so have been approved by the applicable LC Bank) to any LC Bank (in the event of an amendment, renewal or extension, the LC Bank shall be the issuer of such Letter of Credit) and the Administrative Agent (reasonably in advance of the requested date of issuance, amendment, renewal or extension) a notice requesting the issuance of a Letter of Credit, or identifying the Letter of Credit to be amended, renewed or extended, and specifying the date of issuance, amendment, renewal or extension (which shall be a Business Day), the date on which such Letter of Credit is to expire (which shall comply with paragraph (c) of this Section), the amount of such Letter of Credit, the name and address of the beneficiary thereof and such other information as shall be necessary to prepare, amend, renew or extend such Letter of Credit. 5

(p) The last sentence of Section 2.05(b) of the Credit Agreement shall be amended by replacing the dollar amount "$75,000,000" with the dollar amount "125,000,000". (q) Clause (ii) of Section 2.06(b) shall be amended to read as follows: to the Administrative Agent for the account of each LC Bank a fronting fee for Letters of Credit issued by such LC Bank, which shall accrue at the rate per annum of 0.125% on the average daily amount of the LC Bank Exposure for such LC Bank (excluding any portion thereof attributable to unreimbursed LC Disbursements of such LC Bank) during the period from and including the date of this Agreement to but excluding the later of the date of termination of the Commitments and the date on which there ceases to be any LC Exposure. (r) Section 2.10 of the Credit Agreement shall be amended by deleting Section 2.10(d) thereof. (s) Section 2.18(d) of the Credit Agreement shall be amended by replacing the reference therein to "paragraph (c)" with a reference to "paragraph (d)". (t) Section 2.19(b) of the Credit Agreement shall be amended by replacing the reference therein to "all Letters of Credit" with a reference to "all Letters of Credit issued by such Issuing Bank". (u) Sections 3.05, 3.06, 3.07 and 3.12 of the Credit Agreement shall be amended by replacing all references therein to the date "December 31, 2002" with references to the date "December 31, 2003". (v) Section 5.09 of the Credit Agreement shall be deleted. (w) Section 6.01(c) of the Credit Agreement shall be amended to read as follows: (c) the Lien of the First Mortgage and the Lien of any collateral trust mortgage or similar instrument which would be intended to eventually replace (in one transaction or a series of transactions) the First Mortgage (as amended, modified or supplemented from time to time, "Collateral Trust Mortgage") on properties or assets of the Borrower to secure bonds, notes and other obligations of the Borrower but only to the extent such Liens, collectively, secure Indebtedness, whether now existing or hereafter created, in an aggregate amount no greater than the aggregate amount of first mortgage bonds permitted to be issued under the First Mortgage. (x) Section 6.01(d) of the Credit Agreement shall be amended to read as follows (d) Liens not prohibited under the First Mortgage or the Collateral Trust Mortgage (whether or not such Liens cover properties or assets subject to the Lien of the First Mortgage or the Collateral Trust Mortgage); 6

(y) Section 6.01(x) of the Credit Agreement shall be amended by replacing ";" with "; and". (z) Section 6.01(y) of the Credit Agreement shall be amended by replacing "; and" with ".". (aa) Section 6.01(z) of the Credit Agreement shall be deleted. (bb) Section 6.05 of the Credit Agreement shall be amended by: (i) replacing the reference therein to "0.65" with a reference to "0.70"; and (ii) deleting the final sentence thereof. (cc) Section 6.06 of the Credit Agreement shall be amended by deleting the final sentence thereof. (dd) Section 6.09 of the Credit Agreement shall be amended by: (i) inserting the phrase "(other than a Financing Subsidiary)" immediately after the term "Subsidiary", (ii) replacing the references to the years "2003" and "2004" with references to the years "2004" and "2005", respectively, and (iii) inserting the term "such" immediately before the term "Subsidiaries". (ee) Section 9.01(b) of the Credit Agreement shall be amended by removing the reference therein to "or the Issuing Bank". (ff) Section 9.01(c) of the Credit Agreement shall be amended by replacing the reference to "a Bank" therein with a reference to "a Bank or an Issuing Bank". (gg) Section 9.06 of the Credit Agreement shall be amended by replacing each reference to "Lender" therein with a reference to "Bank". (hh) The Credit Agreement shall be amended by deleting Exhibit D attached thereto. (ii) Schedule 2.01 to the Credit Agreement shall be replaced by Schedule 2.01 attached hereto. (jj) The Credit Agreement shall be amended by adding a new Section 9.16 as follows: "Section 9.16 USA PATRIOT ACT NOTIFICATION. Each Bank hereby notifies the Borrower that pursuant to the requirements of the USA Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001) (the "Act"), it is required to obtain, verify and record information that identifies the Borrower, which information includes the name and address of the Borrower and other information that will allow such Bank to identify the Borrower in accordance with the Act. The Borrower agrees to cooperate with each Bank and provide true, accurate and complete information to such Bank in response to any such request." 7

3. REPRESENTATIONS AND WARRANTIES. In order to induce the Banks and the LC Banks to enter into this Amendment, the Borrower represents and warrants as follows: (a) The Borrower has the corporate power and authority (i) to execute and deliver the Amendment Documents, (ii) to perform its obligations under the Amendment Documents and the Loan Documents as amended thereby and (iii) to borrow Loans and have Letters of Credit issued in the maximum amount available under the Credit Agreement as amended hereby. (b) The execution and delivery by the Borrower of the Amendment Documents, the performance by the Borrower of its obligations under the Amendment Documents and the Loan Documents as amended thereby, and the borrowing of Loans and procurement of Letters of Credit in the maximum amount available under the Credit Agreement as amended hereby (collectively, the "Transactions") (i) have been duly authorized by all requisite corporate and, if required, stockholder action and (ii) will not (A) violate (I) any provision of law, statute, rule or regulation the violation of which could reasonably be expected to impair the validity and enforceability of any Amendment Document or any Loan Document as amended thereby or materially impair the rights of or benefits available to the Banks or the LC Banks under the Amendment Documents or the Loan Documents as amended thereby, or of the certificate or articles of incorporation or other constitutive documents or by laws of the Borrower or any Significant Subsidiary, (II) any order of any Governmental Authority the violation of which could reasonably be expected to impair the validity or enforceability of any Amendment Document or any Loan Document as amended thereby, or materially impair the rights of or benefits available to the Banks or the LC Banks under the Amendment Documents or the Loan Documents as amended thereby, or (III) any provision of any indenture or other material agreement or instrument evidencing or relating to borrowed money to which the Borrower or any Significant Subsidiary is a party or by which any of them or any of their property is or may be bound in a manner which could reasonably be expected to impair the validity and enforceability of any Amendment Document or any Loan Document as amended thereby or materially impair the rights of or benefits available to the Banks or the LC Banks under any Amendment Document or any Loan Document as amended thereby, (B) be in conflict with, result in a breach of or constitute (alone or with notice or lapse of time or both) a default under any such indenture, agreement or other instrument in a manner which could reasonably be expected to impair the validity and enforceability of any Amendment Document or any Loan Document as amended thereby or materially impair the rights of or benefits available to the Banks or the LC Banks under any Amendment Document or any Loan Document as amended thereby or (C) result in the creation or imposition under any such indenture, agreement or other instrument of any Lien upon or with respect to any property or assets now owned or hereafter acquired by the Borrower. (c) This Amendment has been duly executed and delivered by the Borrower and constitutes, and each other Amendment Document when executed and delivered by the Borrower, and the Loan Documents as amended thereby, will constitute, legal, valid and binding obligations of the Borrower enforceable against the Borrower in accordance with its terms. (d) No action, consent or approval of, registration or filing with or any other action by any Governmental Authority is or will be required in connection with the Transactions, except such as have been made or obtained and are in full force and effect. 8

(e) Each representation and warranty made in the Loan Documents is true and correct at and as of the date hereof after giving effect to the Amendment Documents, except to the extent such representations and warranties expressly relate to an earlier date. (f) No Default or Event of Default has occurred and is continuing after giving effect to the Amendment Documents. 4. CONDITIONS TO EFFECTIVENESS. The amendments provided for in Section 2 above shall become effective as of the Effective Date, but shall not become effective as of such date unless and until each of the following conditions precedent shall have been satisfied: (a) The Administrative Agent shall have received each of the following, in form and substance satisfactory to it: (i) Opinion of Heller Ehrman White & McAuliffe, LLP, counsel to the Borrower, dated the date of this Amendment and addressed to the Administrative Agent, the Banks and the LC Banks, with respect to such matters relating to the Borrower, the Amendment Documents and the Loan Documents as amended thereby, as the Administrative Agent, the LC Banks or any Bank may reasonably request. The Borrower hereby instructs such counsel to deliver such opinion to the Administrative Agent. (ii) Evidence satisfactory to the Administrative Agent that the Borrower shall have obtained all consents and approvals of, and shall have made all filings and registrations with, any Governmental Authority required in order to consummate the Transactions, in each case without the imposition of any condition which, in the judgment of the Banks or the LC Banks, could adversely affect their rights or interests under the Amendment Documents or the Loan Documents as amended thereby. (iii) A copy of the certificate or articles of incorporation, including all amendments thereto, of the Borrower, certified as of a recent date by the Secretary of State of the state of its organization, and a certificate as to the good standing of the Borrower as of a recent date, from such Secretary of State. (iv) A certificate of the Secretary or Assistant Secretary of the Borrower dated the date of this Amendment and certifying (A) that attached thereto is a true and complete copy of the by-laws of the Borrower as in effect on the date of this Amendment and at all times since a date prior to the date of the resolutions described in clause (B) below, (B) that attached thereto is a true and complete copy of resolutions duly adopted by the board of directors of the Borrower authorizing the Transactions, and that such resolutions have not been modified, rescinded or amended and are in full force and effect, (C) that the certificate or articles of incorporation of the Borrower have not been amended since the date of the last amendment thereto shown on the certificate of good standing furnished pursuant to clause (iii) above, and (D) as to the incumbency and specimen signature of each officer executing any Amendment Document or any other document delivered in connection therewith on behalf of the Borrower. 9

(v) A certificate of another officer as to the incumbency and specimen signature of the Secretary or Assistant Secretary executing the certificate pursuant to clause (iv) above. (vi) A certificate, dated the date of this Amendment and signed by a Financial Officer of the Borrower, confirming compliance with the conditions precedent set forth in paragraphs (e) and (f) of Section 3 hereof. (vii) Evidence satisfactory to the Administrative Agent that the Amendment Documents have been executed and delivered by all parties thereto. (viii) A certificate, dated the date of this Amendment and signed by the Secretary or an Assistant Secretary of the Borrower certifying that (A) the First Mortgage has not been amended or supplemented since the certified copy thereof delivered by the Borrower pursuant to Section 4.02(a)(viii) of the Credit Agreement, except as supplemented by the Thirty-First Supplemental Indenture, the Thirty-Second Supplemental Indenture dated as of September 1, 2003 and the Supplemental Indenture, and (B) attached thereto is a true and complete copy of the Thirty-Second Supplemental Indenture dated as of September 1, 2003. (ix) A paid endorsement to title insurance policy No. NSL 31426-SEA issued by First American Title Insurance Company, which endorsement (A) provides that the insured is the trustee under the First Mortgage including all supplemental indentures through the Supplemental Indenture, (B) has an amount of insurance not less than $545,000,000, (C) has a list of insured properties which conforms to the list of properties subject to the First Mortgage, (D) insures against loss from the failure of the Supplemental Indenture to modify the First Mortgage and (E) contains the proper priority of the First Mortgage. (x) Such other documents as the Administrative Agent, the Banks, the LC Banks or their respective legal counsel may reasonably request. (b) All fees payable by the Borrower to the Administrative Agent, the LC Banks, the Banks or any of their Affiliates on or prior to the date of this Amendment with respect to this Amendment, and all amounts payable by the Borrower pursuant to Section 9.05 of the Credit Agreement for which invoices have been delivered to the Borrower on or prior to such date, shall have been paid in full or arrangements satisfactory to the Administrative Agent shall have been made to cause them to be paid in full concurrently with the disbursement of the proceeds of any Borrowing to be made on such date. (c) All legal matters incident to the Amendment Documents and the Loan Documents as amended thereby and the transactions contemplated thereby shall be reasonably satisfactory to the Administrative Agent, the Banks, the LC Banks and their respective legal counsel. 5. ASSIGNMENT OF LOANS, LC DISBURSEMENTS AND LC PARTICIPATIONS TO REFLECT AMENDED COMMITMENTS. On the Effective Date, the Banks whose Pro Rata Shares after giving effect to this Amendment are greater than their Pro Rata Shares prior to giving effect to this 10

Amendment (each an "Increasing Bank") shall purchase, as an assignment from the Banks whose Pro Rata Shares after giving effect to this Amendment are less than their Pro Rata Shares prior to giving effect to this Amendment (each a "Decreasing Bank"), such portions of the Decreasing Banks' Loans, unreimbursed LC Disbursements and participations in Letters of Credit outstanding at such time such that, after giving effect to such assignments, the respective aggregate amount of Loans, unreimbursed LC Disbursements and participations in Letters of Credit of each Bank shall be equal to such Bank's Pro Rata Share of the aggregate Loans, unreimbursed LC Disbursements and participations in Letters of Credit outstanding. The purchase price for the Loans, unreimbursed LC Disbursements and participations in Letters of Credit so assigned shall be the sum of (i) the principal amount of the Loans and unreimbursed LC Disbursements so assigned plus the amount of accrued and unpaid interest thereon as of the date of assignment and (ii) the amount of accrued and unpaid LC Participation Fees as of the date of assignment on the participations in Letters of Credit so assigned. Each Increasing Bank shall pay the aggregate purchase price payable by it to the Administrative Agent on the Effective Date and the Administrative Agent shall promptly forward to each Decreasing Bank the portion thereof payable to it. Upon payment by an Increasing Bank of the purchase price payable by it to a Decreasing Bank, such Decreasing Bank shall be automatically deemed to have sold and made the applicable assignments to such Increasing Bank and shall, to the extent of the interest assigned, be released from its obligations under the Loan Documents, and such Increasing Bank shall be automatically deemed to have purchased and assumed such assignments from such Decreasing Bank and, if not already a Bank hereunder, shall be a party hereto and, to the extent of the interest assigned, have the rights and obligations of a Bank under the Loan Documents. 6. EFFECT OF INTEREST AND FEE RATE AMENDMENTS. Any changes in interest or fees rates effected by this Amendment shall apply with respect to interest and fees accruing for the Effective Date and periods thereafter, while interest and fees rates in effect prior to the effectiveness of such amendments shall continue to be applicable for accruals for periods prior to the Effective Date. 7. CONFIRMATION OF AMENDED AGREEMENT. The Credit Agreement as amended by this Amendment is and shall continue to be in full force and effect and is hereby in all respects confirmed, approved and ratified. 8. GOVERNING LAW. This Amendment shall be construed in accordance with and governed by the law of the State of New York. 9. COUNTERPARTS. This Amendment may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto were upon the same instrument. 10. HEADINGS. Section headings in this Amendment are included herein for convenience and reference only and shall not constitute a part of this Amendment for any other purpose. [THE NEXT PAGE IS THE SIGNATURE PAGE] 11

WITNESS the due execution hereof as of the date first above written. AVISTA CORPORATION By: /s/ MALYN K. MALQUIST -------------------------------- Name: Malyn K. Malquist Title: Senior Vice President, CFO & Treasurer

THE BANK OF NEW YORK, as Administrative Agent, an Issuing Bank and a Bank By: /s/ RAYMOND J. PALMER --------------------------------- Name: Raymond J. Palmer Title: Vice President

ALLIED IRISH BANKS, p.l.c., as a Bank By: /s/ ROBERT F. MOYLE -------------------------------------- Name: Robert F. Moyle Title: Vice President ALLIED IRISH BANKS, p.l.c., as a Bank By: /s/ MARK K. CONNELLY -------------------------------------- Name: Mark K. Connelly Title: Vice President

BANK HAPOALIM B.M., as a Bank By: /s/ MARC BOSC -------------------------------------- Name: Marc Bosc Title: Vice President By: /s/ LEHROY HACKETT -------------------------------------- Name: Lehroy Hackett Title: FVP

Bank of America, N.A., as a Bank By: /s/ MARK CRAWFORD -------------------------------------- Name: Mark Crawford Title: Senior Vice President

COMERICA WEST INCORPORATED, as a Bank By: /s/ DON R. CARRUTH -------------------------------------- Name: Don R. Carruth Title: Corporate Banking Representative

COMMERZBANK AG, NEW YORK AND CAYMAN ISLANDS BRANCHES, as a Bank By: /s/ ANDREW KJOLLER -------------------------------------- Name: Andrew Kjoller Title: Vice President By: /s/ TIMOTHY CHIN ------------------------------------- Name: Timothy Chin Title: Vice President

FIRST COMMERCIAL BANK, as a Bank By: /s/ BRUCE M.J. JU -------------------------------------- Name: Bruce M.J. Ju Title: VP & GM

KEYBANK NATIONAL ASSOCIATION, as a Bank By: /s/ KEVEN D. SMITH -------------------------------------- Name: Keven D. Smith Title: Vice President

LASALLE BANK NATIONAL ASSOCIATION, as a Bank By: /s/ MEGHAN SCHULTZ -------------------------------------- Name: Meghan Schulz Title: Officer

MIZUHO CORPORATE BANK, LTD., as a Bank By: /s/ MARK GRONICH ------------------------------------ Name: Mark Gronich Title: Senior Vice President

Sterling Savings BANK, as a Bank By: /s/ SEAN W. MORREALE -------------------------------------- Name: Sean W. Morreale Title: Vice President

UNION BANK OF CALIFORNIA, N.A., as Syndication Agent, an Issuing Bank and a Bank By: /s/ KAREN ELLIOTT -------------------------------------- Name: Karen Elliott Title: Assistant Vice President

U.S. BANK, NATIONAL ASSOCIATION, as a Bank By: /s/ WILFRED JACK -------------------------------------- Name: Wilfred Jack Title: Vice President

WASHINGTON MUTUAL BANK, as a Bank By: /s/ RICHARD J. AMENY, JR. -------------------------------------- Name: Richard J. Ameny, Jr. Title: Vice President

WELLS FARGO BANK, as an Issuing Bank and a Bank By: /s/ TOM BEIL -------------------------------------- Name: Tom Beil Title: Vice President

SCHEDULE 2.01 NAMES, COMMITMENTS, ADDRESSES FOR INITIAL BANKS Bank Commitment - ---- ---------- The Bank of New York $45,500,000 One Wall Street, 19th Floor New York, New York 10286 Attention: Ray Palmer Telecopy: 212-635-7923 Allied Irish Banks, p.l.c. $13,000,000 405 Park Avenue, 4th floor New York, NY 10022 Attention: Vaughn Buck/Aidan Lanigan Telecopy: 212-339-8325 Bank Hapoalim B.M. $10,000,000 1177 Avenue of the Americas New York, NY 10036 Attention: Marc Bosc Telecopy: (212) 782-2382 Bank of America, N.A. $30,000,000 800 5th Avenue, Floor 35 Seattle, WA 98104 WA1-501-35-01 Attention: Gordon Gray Telecopy: 206-585-5641 Comerica West Incorporated $13,000,000 Fourth Floor / MC 4465 611 Anton Blvd Costa Mesa, CA 92626 Attention: Don R. Carruth Telecopy: 714-433-3236

Bank Commitment - ---- ---------- Commerzbank AG, New York Branch $20,000,000 2 World Financial Center New York, NY 10281-1050 Attention: Andrew Kjoller Telecopy: 212-266-7530 First Commercial Bank $13,000,000 750 Third Avenue, 34th Floor New York, NY 10017 Attention: Yvonne Lin Telecopy: 212-599-6133 KeyBank National Association $32,000,000 127 Public Square Cleveland, OH 10286 Attention: Sherrie Manson Telecopy: (216) 689-4981 LaSalle Bank National Association $13,000,000 134 LaSalle Street Ste. 211 Chicago, IL 60603 Attention: Meghan Schultz Telecopy: 312-904-1994 Mizuho Corporate Bank, Ltd. $13,000,000 1251 Avenue of the Americas New York, NY 10020-1104 Attention: Nelson Chang Telecopy: 212-282-4488 Sterling Savings Bank $13,000,000 601 Union Street, Suite 1717 Seattle, WA 98101 Attention: Sean W. Morreale Telecopy: 206-625-9099 Union Bank of California, N.A. $45,500,000 445 S. Figueroa Street Los Angeles, CA 90071 Attention: Karen Elliott Telecopy: (213) 236-4096

Bank Commitment - ---- ---------- U.S. Bank, N.A. $32,000,000 1420 Fifth Avenue, 1lth Floor Seattle, WA 98101 Attention: Wilfred Jack Telecopy: (206) 344-3654 Washington Mutual Bank $25,000,000 1201 3rd Avenue, WMT 1445 Suite 1445 Seattle, WA 98101 Attention: Richard J. Ameny, Jr. Telecopy: 206-377-3812 Wells Fargo Bank $32,000,000 221 N. Wall Street, Suite 310 Spokane, WA 99201 Attention: Tom Beil Telecopy: (509) 363-6875 ------------ TOTAL: $350,000,000


                                                                   Exhibit 23(e)

INDEPENDENT AUDITORS' CONSENT

We consent to the incorporation by reference in this Pre-Effective Amendment No.
2 to the Registration Statement on Form S-3 of our report dated February 27,
2004, which includes an explanatory paragraph for certain changes in accounting
and presentation resulting from the impact of recently adopted accounting
standards, appearing in the Annual Report on Form 10-K of Avista Corporation for
the year ended December 31, 2003, and to the reference to us under the heading
"Experts" in the Prospectus, which is part of this registration statement.

/s/ Deloitte & Touche

Seattle, Washington
May 17, 2004