20260519Decision Memo.pdf

DECISION MEMORANDUM
TO: COMMISSIONER LODGE
COMMISSIONER HAMMOND
COMMISSIONER HARDIE
COMMISSION SECRETARY
COMMISSION STAFF
LEGAL
FROM: KELSEA E. ROSS
DEPUTY ATTORNEY GENERAL
DATE: MAY 19, 2026
SUBJECT: IN THE MATTER OF IDAHO POWER COMPANY'S APPLICATION FOR
CERTIFICATES OF PUBLIC CONVENIENCE AND NECESSITY FOR
THE SOUTH HILLS AND PEREGRINE POWER PLANTS AND FOR AN
ASSOCIATED ACCOUNTING ORDER; CASE NO. IPC-E-26-04.
On March 10, 2026, Idaho Power Company ("Company") applied ("Application") to the
Idaho Public Utilities Commission ("Commission") requesting: (1) a Certificate of Public
Convenience and Necessity("CPCN")for the South Hills Power Plant,a natural gas-fueled facility
providing up to 222 megawatts of nameplate generation to meet an identified capacity deficit in
2029; (2) a CPCN for the Peregrine Power Plant, a natural gas-fueled facility providing 430 MW
of nameplate generation to meet an identified capacity deficit in 2030; and(3)an order confirming
the Company's application of accrual of Allowance for Funds Used During Construction for the
South Hills Power Plan and the Peregrine Power Plant to coincide with initial procurement
activities for the natural gas-fueled facilities. Application at 1.
On April 6, 2026, the Commission granted intervention to Idaho Irrigation Pumpers
Association, Inc. and Micron Technology, Inc. Order No. 36993. On April 6, 2026, the
Commission issued a Notice of Application and Notice of Intervention Deadline,setting a deadline
for interested parties to file a petition to intervene. Order No. 36994. On May 1, 2026, the
Commission granted intervention to Northwest Energy Coalition and Renewable Northwest.Order
No. 37026.
DECISION MEMORANDUM 1

STAFF RECOMMENDATION
Commission Staff recommends that the Commission issue a Notice of Modified Procedure,
establishing a July 31, 2026, public comment deadline, and an August 14, 2026, reply comment
deadline.
COMMISSION DECISION
Does the Commission wish to issue a Notice of Modified Procedure, establishing a July
31, 2026,public comment deadline, and an August 14, 2026, reply comment deadline?
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Kelsea E. Ross
Deputy Attorney General
L\LegahELECTRIC\IPC-E-26-04_CPCNs\memos\IPCE2604_dec2_kr.docx
DECISION MEMORANDUM 2