20261020Decision Memo.pdf

DECISION MEMORANDUM
TO: COMMISSIONER LODGE
COMMISSIONER HAMMOND
COMMISSIONER HARDIE
COMMISSION SECRETARY
COMMISSION STAFF
LEGAL
FROM: JEFFREY R. LOLL
DEPUTY ATTORNEY GENERAL
DATE: OCTOBER 20, 2026
SUBJECT: IN THE MATTER OF AVISTA CORPORATION'S APPLICATIONS FOR
A DETERMINATION OF 2025 ELECTRIC AND NATURAL GAS
ENERGY EFFICIENCY EXPENSES AS PRUDENTLY INCURRED; CASE
NOS. AVU-E-26-11 AND AVU-G-26-06.
On August 31, 2026, Avista Corporation, doing business as Avista Utilities ("Company"),
filed two applications with the Idaho Public Utilities Commission ("Commission") requesting
prudence determinations of its 2025 electric and gas energy efficiency expenses for future
ratemaking purposes (collectively, the "Applications").
The Company requests an order designating its electric energy efficiency expenditures
from January 1, 2025, through December 31, 2025, funded through the Company's Schedule 91
Energy Efficiency Rider Adjustment in the amount of$20,688,852, as prudently incurred.
The Company also requests an order designating its natural gas energy efficiency
expenditures from January 1, 2025, through December 31, 2025, funded through the Company's
Schedule 191 Energy Efficiency Rider Adjustment in the amount of $2,742,431, as prudently
incurred.
The Commission found that processing these cases together was reasonable and would be
an efficient use of resources for any parties wishing to join. On September 22, 2026, the
Commission issued a Notice of Applications and Notice of Intervention Deadline. Order No.
37176. No parties intervened.
DECISION MEMORANDUM 1

STAFF RECOMMENDATION
Commission Staff recommends the Commission issue a Notice of Modified Procedure
establishing a December 17, 2026, public comment deadline and a January 7, 2027, Company
reply comment deadline.
COMMISSION DECISION
Does the Commission wish to issue a Notice of Modified Procedure establishing a
December 17, 2026, public comment deadline and a January 7, 2027, Company reply comment
deadline?
Jeffrey R. Loll
Deputy Attorney General
I:\Lega1\ELECTRIC\AVU-E-26-11_G2606_prudence\memo s\A V UE2611_G2606_dec2;l.docx
DECISION MEMORANDUM 2