20251114Final_Order_No_36847.pdf

Office of the Secretary
Service Date
November 14,2025
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF IDAHO POWER ) CASE NO. IPC-E-25-24
COMPANY'S APPLICATION TO UPDATE )
CLEAN ENERGY YOUR WAY )
CONSTRUCTION AGREEMENT PRICING ) ORDER NO. 36847
ELEMENTS BASED ON THE 2025 IRP )
On July 25, 2025, Idaho Power Company ("Company") applied for authority to update
pricing elements for all contracts under its Clean Energy Your Way ("CEYW") Construction
Program that are based on data from the Company's 2025 Integrated Resource Plan("IRP").
On September 16, 2025, the Commission issued a Notice of Application and Notice of
Modified Procedure, establishing public comment and Company reply deadlines. Order No.
36761. Staff filed the only comments.
Having reviewed the record, the Commission issues this Order granting the Application
and directing the Company to take the additional actions described below.
BACKGROUND
The Company's CEYW-Construction Program, under Schedule 62, allows its largest
customers on special contracts or under Schedule 19—Large Power Service to obtain up to 110%
of their annual energy needs through renewable sources. The Company currently has three
participants in the Commission-approved CEYW-Construction Program: Brisbie LLC(`Brisbie"),
Micron Technology, Inc. ("Micron"), and the city of Boise City ("City").
In Order No. 36383, the Commission directed the Company to update pricing for all
CEYW-Construction agreements and Schedule 62 in a single filing within 30 days after submitting
its IRP. This ensures that rates reflect the most current and accurate data.
THE APPLICATION
The Company seeks to update pricing elements in its CEYW agreements to align them
with its 2025 IRP,which was filed with the Commission on June 27,2025. The Company requests
Commission approval of updated 2025 IRP-based prices for the Brisbie and Micron Special
Contracts and the City's CEYW Agreement, including the "Supplemental Energy Price" for
ORDER NO. 36847 1

Brisbie's Block 2 load service and the "Mid-Columbia Forecast" ("Mid-C") used to calculate the
"Excess Generation Price" for Brisbie, Micron, and the City.
STAFF COMMENTS
Staff reviewed the Company's proposed updates to the Supplemental Energy Price and
Excess Generation Price to determine whether they comply with the Commission's prior Orders
and appropriately reflect the data from the 2025 IRP. Staff verified that the Company applied a
P50 load forecast consistent with the requirements of Order No. 36383,that the methodology used
to calculate the Excess Generation Price remains consistent with Order No. 35777, and that both
pricing elements are derived from updated 2025 IRP inputs. Based on this review, Staff concluded
that the Company's filing is consistent with Commission directives and recommended approval of
the revised pricing elements within the CEYW special contracts and agreements.
I. Supplemental Energy Price
Staff verified that the Company updated the avoided cost averages using a P50 load
forecast' to determine the Supplemental Energy Price. The Supplemental Energy Price applies to
Brisbie's Block 2 load service and is based on avoided cost data from the Company's 2025 IRP.
Staff also confirmed the accuracy of the avoided cost averages by reviewing the Company's hourly
calculations provided in response to Staff s Production Request No. 1.
II. Excess Generation Price
Staff confirmed that the hourly Mid-C forecast used to calculate the Excess Generation
Price was properly updated to align with the Company's 2025 IRP and that the calculation
methodology used complies with Order No. 35777. The Excess Generation Price is based on the
hourly Mid-C Price Forecast, assumed to represent a firm-energy market price, and is adjusted by
82.4% to reflect a non-firm energy market price. As required by Order No. 35777, an 85%
adjustment is applied to balance fair compensation for energy projects with customer protection.
Thus, the Excess Generation Price is the lower of the adjusted Mid-C Forecast or the actual high-
or low-load hour Mid-C market price. Staff reviewed the example calculation provided by the
Company in response to Staff Production Request No. 2, confirmed it was correct, and complied
with Order No. 35777.
'A P50 load forecast is one where there is a 50%probability that the forecast will be exceeded.Consistent with Order
No. 36383,the use of a P50 load forecast aligns with cost-of-service principles and Commission-approved methods
for calculating IRP-based avoided cost and marginal cost rates.
ORDER NO. 36847 2

COMMISSION FINDINGS AND DECISION
The Commission has jurisdiction over the Company's Application and the issues in this
case under Title 61 of the Idaho Code including Idaho Code §§ 61-301 through 61-303. The
Commission is empowered to investigate rates, charges,rules,regulations,practices, and contracts
of all public utilities and to determine whether they are just, reasonable, preferential,
discriminatory, or in violation of any provisions of law, and to fix the same by order. Idaho Code
§§ 61-501 through 61-503.
Based on our review of the record, we find it reasonable to approve the proposed updated
pricing elements for inclusion in the Company's CEYW special contracts and agreements with
Brisbie, Micron, and the City. The Company shall file revised tariffs for Micron Schedule 26,
Brisbie Schedule 33,and CEYW Program Schedule 62 as a compliance filing.These revised tariffs
should reflect the updated pricing elements based on the Company's most recently filed IRP, as
well as reference the date and number of this Order.
ORDER
IT IS HEREBY ORDERED that the Company's Application for authority to update pricing
elements in its CEYW special contracts and agreements with Brisbie, Micron, and the City is
approved.
IT IS FURTHER ORDERED that the Company shall submit as a compliance filing revised
tariffs for Micron Schedule 26,Brisbie Schedule 33, and CEYW Program Schedule 62 that reflect
the updated pricing elements based on the Company's most recently filed IRP as well as the date
and number of this Order.
THIS IS A FINAL ORDER. Any person interested in this Order may petition for
reconsideration within twenty-one (21) days of the service date of this Order about any matter
decided in this Order. Within seven (7) days after any person has petitioned for reconsideration,
any other person may cross-petition for reconsideration. See Idaho Code § 61-626.
ORDER NO. 36847 3

DONE by Order of the Idaho Public Utilities Commission at Boise, Idaho this 14ffi day of
November 2025.
G
Grp
DWARD LODGE, RE I ENT
HN R. HAMMOND JR., COMMISSIONER
DAYN HARDIE COMM SSIONER
ATTEST:
Luara Calderon Robles
Interim Commission Secretary
I:\Legal\ELECTRIC\IPC-E-25-24_CEY W\orders\IPCE2524_final_at.docx
ORDER NO. 36847 4