20260616Decision Memo.pdf

DECISION MEMORANDUM
TO: COMMISSIONER LODGE
COMMISSIONER HAMMOND
COMMISSIONER HARDIE
COMMISSION SECRETARY
COMMISSION STAFF
LEGAL
FROM: MICHAEL ELDRED, COMMISSION STAFF
CHRIS BURDIN,DEPUTY ATTORNEY GENERAL
DATE: JUNE 16, 2026
SUBJECT: IN THE MATTER OF IDAHO POWER COMPANY'S APPLICATION FOR
APPROVAL OF SPECIAL CONTRACT AND TARIFF SCHEDULE 28 TO
PROVIDE ELECTRIC SERVICE TO MICRON IDAHO
SEMICONDUCTOR MANUFACTURING (TRITON) LLC.; CASE NO.
IPC-E-24-44.
BACKGROUND
On December 6, 2024, Idaho Power Company ("Company") filed an application
("Application") with the Idaho Public Utilities Commission ("Commission") requesting an order
approving the Special Contract for electric service between the Company and Micron Idaho
Semiconductor Manufacturing (Triton) LLC ("Micron"), for Micron's new memory
manufacturing fabrication complex ("Micron FAB"), and approving the rates proposed in tariff
Schedule 28.
On May 8, 2026, the Commission approved the Application and Special Contract with
modifications in Order No. 37039. The Commission ordered the Company to submit a compliance
filing including a revised Schedule 28 updating: (1) the initial Energy Charge to $0.04084 per
kilowatt hour ("kWh"), consistent with the revised workpaper reflecting the 2025 Marginal Cost
Update-Single Run Method approved in Case No. IPC-E-25-17; and (2) the Contract Demand
charge to $3.12 per kilowatt ("kW") and the Billing Demand charge to $20.25 per kW to reflect
the 2025 GRC Settlement Stipulation CCOS. Order No. 37039. Additionally, the Commission
ordered the Company to modify the ESA contract terms related to the marginal cost-based Energy
Charges and the Minimum Monthly Billing Demand, revising Section 5.5(b) and Section 7.2
DECISION MEMORANDUM - 1 - JUNE 16, 2026

consistent with the amendments proposed by Micron at the hearing in Micron Exhibits 304 and
305. Id.
On June 2,2026,the Company filed a revised Schedule 28 tariff with updated rates and an
executed First Amendment to the Micron FAB special contract incorporating revisions to Section
5.5(b) and Section 7.2.
STAFF REVIEW
Staff reviewed the revised Schedule 28 tariff and the First Amendment to the Micron FAB
special contract. Staff believes the revised tariff and the First Amendment satisfies the
Commission's requirements to submit a compliance filing as ordered in Order No. 37039.
The Company updated the Energy Charge,Contract Demand Charge, and Billing Demand
Charge to the values ordered by the Commission in Order No. 37039. In addition, the Company
updated the Daily Excess Demand Charge to be the same value as all other Special Contract's
Daily Excess Demand Charge approved by the Commission in Case No. IPC-E-25-16.
Commission Order No. 37039 did not specifically address updating the Daily Excess Demand
Charge in Schedule 28, but Staff believes it is appropriate to update this value to reflect changes
that have occurred since the Company's original Application and to be consistent with the rate
change approved by the Commission in Case No. IPC-E-25-16.
The First Amendment to the Micron Fab special contract includes the revised Section
5.5(b)and Section 7.2 language consistent with the amendments proposed by Micron at the hearing
in Micron Exhibits 304 and 305. The First Amendment also included a provision that it become
effective as of the Commission's final approval of the First Amendment. Staff believes the First
Amendment is reasonable and satisfies the Commission's requirements provided in Order No.
37039.
STAFF RECOMMENDATION
Staff recommends that the Commission approve Schedule 28 and the First Amendment
as filed.
DECISION MEMORANDUM - 2 - JUNE 16, 2026

COMMISSION DECISION
Does the Commission wish to approve the Company's Schedule 28 and the First
Amendment to the Micron FAB special contract as filed?
/,W, t,
Michael Eldred
Commission Staff
I:\Uti1ity\UDMEM0S\IPC-E-24-44 Decision Memo.docx
DECISION MEMORANDUM - 3 - JUNE 16, 2026