20260605Application.pdf

I 11
Avista Corp. RECEIVED
2026
1411 East Mission Ave., P.O. Box 3727 DUNE 5,
IDAHO PUBLIC
Spokane, WA 99220-0500 UTILITIES COMMISSION
Telephone: [phone]
Toll Free: 800-227-9187
June 5, 2026
State of Idaho
Idaho Public Utilities Commission
11331 W. Chinden Blvd
Bldg 8 Suite 201-A
Boise, ID 83714
Attention: Commission Secretary
Transmitted herewith is one executed copy of an application for approval of an order authorizing
security issuance.
The Company respectfully requests that the Commission consider adopting revised standard
ordering language in this and future financing authorization orders by removing the terms
"proposed"and"within seven days, or"from the third ordering paragraph. The Company believes
this modification would enhance clarity and administrative efficiency with respect to the timing
and substance of required filings, while maintaining the intent of the Commission's reporting
requirement.
The Company respectfully requests to receive an Order of Approval from the Commission by July
6, 2026.
If any questions arise or additional information is needed, please do not hesitate to contact Carly
Guillory at 509-495-2708 or Krista Johnson at 509-495-8020.
Sincerely,
/Qvs" F"#C&
Shawn Bonfield
Sr. Manager of Regulatory Policy& Strategy

BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
In the Matter of the Application of )
AVISTA CORPORATION for an Order authorizing )
the offering, issuance and sale of Debt Securities ) CASE NO.
not to exceed $800,000,000.
Application is hereby made to the Idaho Public Utilities Commission (Commission) under the provisions
of Section 61-901 and 61-902, Idaho Code (Laws of 1951, Chapter 143) for an Order authorizing the
proposed offering, issuance and sale by the Applicant of up to $800,000,000 of Debt Securities. The
requested authority is in addition to the previously granted by the Commission for the issuance of Debt
Securities in Order No. 36079 in Case No. AVU-U-24-01 entered February 1, 2024, under which
$80,000,000 remains authorized but unissued.
The following information and specific exhibits are furnished in support thereof:
(a) Name and address of principal business office:
Avista Corporation
1411 East Mission Avenue
Spokane WA 99202-2600
Name of representative for service:
Jason E. Lang, Assistant Treasurer
Avista Corporation
1411 East Mission Avenue, MSC-7
Spokane, Washington 99202-2600
Phone: [phone]
Email: [e-mail]
Email: [e-mail]
(b) State and date of incorporation:
Incorporated Washington Territory (now the State of Washington)on March 15, 1889. The term of
incorporation is perpetual.
As a public utility Applicant is qualified to do business in:
Washington, Idaho, Montana, and Oregon.
(c) General description of business, property, and territory served:
The Applicant is a public utility which owns and operates property in Northern Idaho, Eastern
Washington, Central and Southwest Oregon and Western Montana.
The Applicant is engaged in the generation, transmission, distribution and sale of electric energy,
which it sells at retail to approximately 427,000 residential, commercial, and industrial customers in
Northern Idaho, Eastern Washington, and Western Montana, and at wholesale to public utilities,
municipalities and others. Its electric properties are operated as a unified system and are
interconnected with adjacent electric utilities. The electric energy sold by the Applicant is
generated in power stations, which it owns in whole or in part, or obtained by purchase or
exchange from other utilities, governmental agencies or third parties.
The Applicant is also engaged in the distribution and sale of natural gas to approximately 385,000
residential,commercial and industrial customers in Northern Idaho, Eastern Washington and Central
and Southwest Oregon.
(d) Description of securities, indebtedness or liabilities:
Pursuant to Rule 142 of the Rules of Practice and Procedure, the Applicant hereby Files the
application filed with the Washington Utilities and Transportation Commission as Exhibit"D-1" in lieu
of the application required by Rule 141. Applicant further states that:

(1) Applicant has published or will have published within seven days of the date of filing this
Application a notice in those newspapers listed in Rule 141.08 of the Rules of Practice and
Procedure of the Idaho Public Utilities Commission that are in general circulation in Applicant's
service area.
(2)Attached Exhibits:
Exhibit D-1 Copy of Washington Application
WHEREFORE, the Applicant respectfully requests the Idaho Public Utilities Commission for an Order
authorizing Avista Corporation (hereinafter called "Applicant")to issue and sell up to and including
$800,000,000 in Debt Securities (such amount being in addition to$300,000,000 previously authorized
by the Commission in Order No. 36079, in Case No. AVU-U-24-01 entered February 1, 2024, under
which $80,000,000 remains authorized but unissued, for a total of$880,000,000).
Dated 5th day of June 2026.
AVISTA CORPORATION
By: ls/ jc4a-w la i g,
Jason Lang
Assistant Treasurer and Director of Finance
and Risk