20251104Notice_of_Filing_Order_No_36829.pdf

Office of the Secretary
Service Date
November 4,2025
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF IDAHO POWER ) CASE NO. IPC-E-25-33
COMPANY'S ANNUAL COMPLIANCE )
FILING TO UPDATE THE LOAD AND GAS ) NOTICE OF FILING
FORECAST IN THE INCREMENTAL COST )
INTEGRATED RESOURCE PLAN AVOIDED ) NOTICE OF
COST MODEL ) MODIFIED PROCEDURE
ORDER NO. 36829
On October 15, 2025, Idaho Power Company ("Company") filed its annual compliance
filing to update the load forecast, natural gas forecast, and long-term contract changes used in the
Company's Incremental Cost Integrated Resource Plan("ICIRP") avoided cost methodology.
With this Order the Commission issues notice of the Company's Filing and establishes
public comment and Company reply deadlines.
NOTICE OF FILING
YOU ARE HEREBY NOTIFIED that the Company currently forecasts an average annual
load growth for the 20-year period following September 2024 forward that constitutes an increase
from the average annual load growth forecast that the Commission approved in the Company's
2024 annual update.
YOU ARE FURTHER NOTIFIED that the Company states it developed its natural gas
forecast using the most recent Henry Hub and Sumas Basis Annuals from S&P Platts Long-term
Forecast, which was published in August 2025.
YOU ARE FURTHER NOTIFIED that the Company states it has seven non-PURPA,long-
term power purchase agreements with projects that are currently online—Elkhorn Valley Wind
(101 megawatts ("MW")), Raft River Geothermal (13 MW), Neal Hot Springs Geothermal (22
MW), Jackpot Solar (120 MW), Black Mesa Solar (40 MW), Franklin Solar (100 MW), and
Pleasant Valley Solar (200 MW). In addition to its agreements with non-PURPA projects, the
Company has 129 contracts for PURPA QFs which, in the aggregate, have a total nameplate
capacity of 1,128.58 MW.
NOTICE OF FILING
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36829 1

YOU ARE FURTHER NOTIFIED that the Company represents that it has one non-
PURPA long-term battery services agreement with a battery energy storage system, the Kuna
BESS (150 MW/600 MWh).
YOU ARE FURTHER NOTIFIED that the Filing is available for public inspection during
regular business hours at the Commission's office. These documents are also available on the
Commission's website at www.puc.idaho.gov. Click on the "ELECTRIC" icon, select "Open
Cases," and click one of the case numbers as shown on the front of this document.
YOU ARE FURTHER NOTIFIED that all proceedings in this case will be held pursuant
to the Commission's jurisdiction under Title 61 of the Idaho Code and the Commission's Rules of
Procedure, IDAPA 31.01.01.000 et seq.
NOTICE OF MODIFIED PROCEDURE
YOU ARE FURTHER NOTIFIED that the Commission has determined that the public
interest may not require a formal hearing in this matter, and it will review the case through written
submissions under the Commission's Rules of Modified Procedure Rules 201-204 of the Idaho
Public Utilities Commission's Rules of Procedure, IDAPA 31.01.01.201-204. The Commission
notes that Modified Procedure and written comments have proven to be an effective means for
obtaining public input and participation.
YOU ARE FURTHER NOTIFIED that persons desiring to state a position on this Filing
may file a written comment explaining why they support or oppose the Filing. Persons who would
like a hearing must specifically request a hearing in their written comments. Persons shall have
until December 4, 2025, to file written comments. Comments must be filed through the
Commission's website or by e-mail unless computer access is unavailable. To comment
electronically, please access the Commission's website at www.puc.idaho.gov. Click the "Case
Comment Form" and complete the form using the case number as it appears on the front of this
document.
To file by e-mail, persons must e-mail the comments to the Commission Secretary and all
parties at the e-mail addresses listed below. Persons submitting a comment by e-mail must provide
their name, address, and the Case Number under which they are commenting. Persons submitting
a comment by e-mail also acknowledge that submitting a comment in an open case constitutes a
NOTICE OF FILING
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36829 2

public record under Idaho Code § 74-101(13), and all information provided by such person is
available for public and media inspection.
If computer access is unavailable, then comments may be mailed to the Commission and
the Parties at the addresses below.Persons submitting a comment by mail must provide their name,
address, and the Case Number under which they are commenting. Persons submitting a comment
by mail also acknowledge that submitting a comment in an open case constitutes a public record
under Idaho Code§74-101(13),and all information provided by such person is available for public
and media inspection.
For the Idaho PUC: For Idaho Power Company:
Commission Secretary Lisa C. Lance
Idaho Public Utilities Commission Donovan E. Walker
P.O. Box 83720 1221 West Idaho Street
Boise, ID 83720-0074 P.O. Box 70
secretary(apuc.idaho.gov Boise, ID 83707
llancegidahopower.com
dwalkergidahopower.com
docketskidahopower.com
YOU ARE FURTHER NOTIFIED that the Company must file any reply comments by
December 11, 2025.
YOU ARE FURTHER NOTIFIED that if no written comments or protests are received
within the time limit set,the Commission will consider this matter on its merits and enter its order
without a formal hearing. If written comments are received within the time limit set, the
Commission will consider them and, in its discretion, may set the same for formal hearing.
ORDER
IT IS HEREBY ORDERED that the Company's Filing be processed by Modified
Procedure. Persons interested in submitting written comments must do so by December 4, 2025.
The Company must file any reply comments by December 11, 2025.
IT IS FURTHER ORDERED that parties comply with Order No. 35375, issued April 21,
2022. Generally, all pleadings should be filed with the Commission electronically and will be
deemed timely filed when received by the Commission Secretary.See Rule 14.02. Service between
parties should continue to be accomplished electronically when possible. However, voluminous
discovery-related documents may be filed and served on CD-ROM or a USB flash drive.
NOTICE OF FILING
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36829 3

DONE by Order of the Idaho Public Utilities Commission at Boise, Idaho this 41h day of
November 2025.
G
Gfiv _
EDWARD LODGE, PRE ENT
9t",
,AHAMMOND JR., COMMISSIONER
DAYN HARDI , COMMISSIONER
ATTEST:
Jq�i
Law.. Calderon Robles
Interim Commission Secretary
I:\LegahELECTBIC\IPC-E-25-33_L and G\orders\IPCE2533_Ntc of App_Mod_at.docx
NOTICE OF FILING
NOTICE OF MODIFIED PROCEDURE
ORDER NO. 36829 4