20251107Application.pdf

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—NOVIQAW Ro
LISA C. LANCE RECEIVED
Corporate Counsel
Ilance idahopower.com NOVEMBER 7, 2025
IDAHO PUBLIC
UTILITIES COMMISSION
November 7, 2025
VIA ELECTRONIC MAIL
Commission Secretary
Idaho Public Utilities Commission
11331 West Chinden Blvd., Building 8
Suite 201-A
Boise, Idaho 83714
Re: Case No. IPC-E-25-34
Idaho Power Company's Application to Implement the Residential and
Small Farm Credit Effective January 1, 2026 through December 31, 2028
Dear Commission Secretary:
Attached for electronic filing is Idaho Power Company's Application in the above-
entitled matter.
If you have any questions about the attached documents, please do not hesitate
to contact me.
Very truly yours,
/,a G �
Lisa C. Lance
LCL:sg
Enclosures

LISA C. LANCE (ISB No. 6241)
Idaho Power Company
1221 West Idaho Street (83702)
P.O. Box 70
Boise, Idaho 83707
Telephone: [phone]
Facsimile: [phone]
([e-mail]
Attorney for Idaho Power Company
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF IDAHO POWER )
COMPANY'S APPLICATION TO ) CASE NO. IPC-E-25-34
IMPLEMENT THE RESIDENTIAL AND )
SMALL FARM CREDIT EFFECTIVE ) APPLICATION
JANUARY 1, 2026 THROUGH )
DECEMBER 31, 2028. )
Idaho Power ("Idaho Power" or "Company") respectfully applies to the Idaho
Public Utilities Commission ("Commission") pursuant to Idaho Code § 61-502, § 61-
503, and Rules of Procedure ("RP") 052, and hereby respectfully submits this
application ("Application") to implement the Bonneville Power Administration's ("BPA")
residential and small farm credit of 0.0305 cents per kilowatt-hour ("kWh") effective
January 1, 2026, through December 31 , 2028. The credit rate represents a
$19,888,200 decrease to eligible customers as compared to the BPA fiscal year 2024-
2025 period.
In support of this Application, Idaho Power represents as follows:
APPLICATION- 1

I. BACKGROUND
1. Idaho Power is a public utility supplying retail electric service to
approximately 620,000 customers in southern Idaho and eastern Oregon. Idaho Power
is subject to the jurisdiction of this Commission in Idaho and to the jurisdiction of the Public
Utility Commission of Oregon.
2. Under the terms and conditions of the Pacific Northwest Electric Power
Planning and Conservation Act (commonly known as the "NW Power Act"), BPA has
established a Residential Exchange Program ("REP") that permits Northwest
investor-owned utilities ("IOUs") to exchange power they have purchased or
generated for lower-cost power generated by BPA.' The exchange itself is a paper
transaction through which benefits from the federal Columbia River power system are
passed to qualifying residential and small-farm customers of participating Northwest
IOUs.
3. REP implementation has been litigated multiple times since the NW
Power Act was enacted. Idaho Power, BPA, other IOUs, public utility districts, and
municipalities in the Northwest are parties to the REP Settlement Implementation
Agreement2 that determined the level of REP benefits the Company receives for the
period October 1 , 2011 , through September 30, 2028.
II. BPA REP RATE
4. Currently the rate in Electric Service Schedule 98 - Residential and Farm
Energy Credit, ("Schedule 98"), is $0.003447 per kWh. This credit was established in
16 U.S.C. § 839c(c). See Assoc. of Pub. Agency Customers v. Bonneville Power Admin. (APAC v.
BPA), 733 F.3d 939, 945 (9th Cir. 2013).
2 The Idaho Commission approved the REP Settlement Agreement in April 2011.
APPLICATION- 2

2023 based on an annual BPA REP credit of$22,903,010 to eligible Idaho customers.
The current rate was approved by the Commission in Order No. 36036 on December
26, 2023, in Case No. IPC-E-23-28 and was effective January 1 , 2024.
5. Although the Settlement Agreement established fixed annual benefits in
total for BPA fiscal years 2012 through 2028, these benefits are allocated to the
utilities based upon each utility's Average System Cost ("ASC") in comparison to
BPA's Priority Firm Exchange Rate ("PF Exchange Rate"),3 and upon a two-year
average of the utility's historical eligible residential and small farm loads. A utility's
ASC and the resulting benefits are determined through an ASC filing and review
process administered by BPA and conducted every two years.
6. The REP has operated on two-year benefit cycles beginning in 2012
through the most recent benefit cycle of FY 2024-2025. The final benefit cycle will
operate as a three-year cycle of FY 2026-2028 to finish out the remainder of the fixed
annual benefits established in the 2012-2028 Settlement Agreement.
7. As a result of the ASC review conducted for BPA's Fiscal Years ("FY")
2024 and 2025, Idaho Power's Idaho and Oregon residential and small farm
customers received $22,903,010 of annual benefits for the two-year period beginning
October 1 , 2023. On October 25, 2023, Idaho Power filed Case No. IPC-E-23-28 with
the Commission to increase the rate on Schedule 98 effective January 1 , 2024,
whereby Idaho residential and small farm customers would receive a credit on their
power bills for the period January 1 , 2024, through December 31 , 2025. The
Commission approved the credit rate in Order No. 36036 on December 26, 2023.
3 APAC v. BPA, 733 F.3d at 945-46.
APPLICATION- 3

8. BPA issued the FY 2026-2028 (October 2025 through September 2028)
final ASC report for Idaho Power in July 2025.4 Table 1 below shows a comparison
of the ASCs for the six Northwest IOUs between the current and most recent period.
Table 1
Utility FY2026-285 FY2024-25 Incr/(Decr)
Avista $ 67.29 $ 70.61 $ (3.32)
Idaho Power $ 60.47 $ 66.03 $ (5.56)
NorthWestern Energy $ 89.44 $ 83.73 $ 5.71
PacifiCorp $ 103.92 $ 84.08 $ 19.84
Portland General Electric $ 93.89 $ 80.03 $ 13.86
Puget Sound $ 82.24 $ 81.53 $ 0.71
9. Idaho Power's final ASC for the FY 2026-2028 exchange period is
$60.47 per megawatt-hour ("MWh"). Because Idaho Power's exchange period ASC
exceeds BPA's PF Exchange Rate (currently $60.07 per MWh) by $0.40 per MWh,
the Company's Idaho and Oregon residential and small farm customers are eligible
to receive $3,014,809 annually for the FY 2026-2028 exchange period, a decrease
of $19,888,200 per year from the FY 2024-2025 exchange period.
III. RETAIL RATE DESIGN
10. Three attachments accompany this Application. Attachment 1
summarizes the jurisdictional allocation of the BPA REP benefits of $3,014,809 and
Attachment 2 summarizes the calculation of the Schedule 98 credit rate. Clean and
4 The Idaho Power Company FY 2026-2028 Final Average System Cost Report can be accessed online
under Utility Filings by Fiscal Year, FY26-28, FY 2026-2028 ASC Reports, Idaho_FY26-28 Final ASC
Report https://www.bpa.gov/energy-and-services/power/residential-exchange-program/asc-utility-filings.
5 BP-26 Rate Proceeding Final Proposal Power Rates Study Documentation, BP-24-FS-BPA-01A, at 145
(July 2025). https://www.bpa.gov/-/media/Aep/rates-tariff/bp-26/Final-Proposal/Studies-and-
Documentation/BP-26-FS-BPA-01 A-Power-Rate-Study-Documentation.pdf.
APPLICATION-4

legislative versions of the proposed Schedule 98 tariff can be found in Attachment 3
to the Application.
11 . Idaho Power will continue to pass through the benefit amount on a
uniform cents per kWh basis to all qualifying electric energy delivered to Idaho
customers taking service under Schedules 1 , 3, 5, 6, 7, 8, 9, 15, and 24. The
calculation of the new BPA Credit rate for qualifying customers, based on the new
benefit amount determined by the FY 2026-2028 ASC proceeding, can be found in
Attachment 2.
12. Benefits at the new credit rate will be passed through on a monthly basis
for qualifying residential and small farm usage commencing January 1 , 2026.
However, benefits for qualifying irrigation usage will continue to be accrued monthly
and passed through to irrigation customers each December. The irrigation benefits
distributed each December will correspond to a prior 12-month period ending on
September 30. For example, irrigation benefits distributed in December 2025 are
based on usage from October 2024 through September 2025. Monthly benefits for
qualifying irrigation customers are limited, for any single customer, to their actual
monthly energy or 222,000 kWh, whichever is less.
IV. COMMUNICATIONS
Communications and service of pleadings, with reference to this Application should be
sent to the following:
APPLICATION- 5

Lisa C. Lance Grant T. Anderson
Counsel Pricing and Tariff Manager
Idaho Power Company Idaho Power Company
P.O. Box 70 P.O. Box 70
Boise, Idaho 83707 Boise, Idaho 83707
Ilan ce idahopower.com ganderson(c-)-idahopower.com
dockets idahopower.com aapperson(a�idahopower.com
13. Pursuant to Commission RP 125.02, Idaho Power will bring this tracker
adjustment occasioned by federal action to the attention of customers via bill message in
compliance with RP 125 after approval by the Commission.
V. MODIFIED PROCEDURE
14. Idaho Power believes that it would be appropriate to process this case by
means of Modified Procedure (i.e., by written submissions rather than by hearing) in
accordance with the provisions of RP 201-210 et seq.
VI. REQUEST FOR RELIEF
15. For the reasons set forth above, Idaho Power respectfully requests that
the Commission issue an order approving a Schedule 98 credit of $0.000305 per kWh
for rate schedules 1, 3, 5, 6, 7, 8, 9, 15, and 24 effective January 1 , 2026, through
December 31, 2028.
DATED at Boise, Idaho, this Th day of November 2025.
/, C-�/.,t'
LISA C. LANCE
Attorney for Idaho Power Company
APPLICATION- 6

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-25-34
IDAHO POWER COMPANY
ATTACHMENT NO. 1
ANNUAL ALLOCATION OF REP
BENEFITS FY 2026-2028

Attachment 1
Annual Allocation of REP Benefits FY2026 - FY2028
Annual Dollar Benefits by Idaho Idaho Idaho Oregon Oregon Oregon Grand
Month, Class&Jurisdiction Residential& Irrigation Total Residential& Irrigation Total Total
Small Farm Small Farm
October $ 160,583.93 $ 31,868.91 $ 192,452.84 $ 4,444.17 $ 1,742.91 $ 6,187.08 $ 198,639.91
November $ 176,963.00 $ 8,825.81 $ 185,788.81 $ 5,803.85 $ 277.53 $ 6,081.39 $ 191,870.20
December $ 236,946.36 $ 1,499.65 $ 238,446.01 $ 8,400.39 $ 86.32 $ 8,486.70 $ 246,932.71
January $ 270,447.44 $ 1,148.36 $ 271,595.80 $ 9,951.98 $ 70.95 $ 10,022.93 $ 281,618.74
February $ 253,620.00 $ 1,238.21 $ 254,858.21 $ 9,401.28 $ 65.48 $ 9,466.77 $ 264,324.98
March $ 236,364.84 $ 1,034.07 $ 237,398.91 $ 8,586.67 $ 64.17 $ 8,650.85 $ 246,049.76
April $ 197,912.70 $ 4,562.22 $ 202,474.92 $ 6,566.11 $ 85.32 $ 6,651.43 $ 209,126.35
May $ 169,849.28 $ 33,816.26 $ 203,665.54 $ 5,236.88 $ 1,332.06 $ 6,568.94 $ 210,234.48
June $ 174,182.74 $ 57,288.82 $ 231,471.57 $ 4,944.81 $ 3,336.68 $ 8,281.49 $ 239,753.05
July $ 219,773.42 $ 72,977.51 $ 292,750.93 $ 6,059.16 $ 5,128.24 $ 11,187.40 $ 303,938.34
August $ 260,349.33 $ 72,117.48 $ 332,466.81 $ 7,218.01 $ 5,610.93 $ 12,828.93 $ 345,295.74
September $ 209,554.35 $ 58,115.66 $ 267,670.02 $ 5,600.77 $ 3,754.49 $ 9,355.25 $ 277,025.27
Total Annual BPA Fiscal Year Benefits $ 2,566,547.40 $ 344,492.97 $ 2,911,040.37 $ 82,214.08 $ 21,555.09 $ 103,769.16 $ 3,014,809.53

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-25-34
IDAHO POWER COMPANY
ATTACHMENT NO. 2
SCHEDULE 98 - RATE CALCULATION
FY2026-2028

Idaho Power Company
Calculation of BPA REP Credit Rate for Idaho
Fiscal Years 2026-2028
Attachment 2
Schedule 98 Rate Calculation FY2026-FY2028
Total REP Oregon Idaho Total Projected
Billing Benefit REP Benefit REP Benefit Eligible Loads(kWh)
Month Dollars Dollars Dollars Idaho
Jan-26 $ 281,618.74 $ 10,022.93 $ 271,595.80 695,290,901
Feb-26 $ 264,324.98 $ 9,466.77 $ 254,858.21 608,024,787
Mar-26 $ 246,049.76 $ 8,650.85 $ 237,398.91 546,613,462
Apr-26 $ 209,126.35 $ 6,651.43 $ 202,474.92 482,460,028
May-26 $ 210,234.48 $ 6,568.94 $ 203,665.54 506,822,523
Jun-26 $ 239,753.05 $ 8,281.49 $ 231,471.57 533,277,932
Jul-26 $ 303,938.34 $ 11,187.40 $ 292,750.93 670,031,553
Aug-26 $ 345,295.74 $ 12,828.93 $ 332,466.81 769,045,697
Sep-26 $ 277,025.27 $ 9,355.25 $ 267,670.02 616,534,870
Oct-26 $ 198,639.91 $ 6,187.08 $ 192,452.84 488,498,358
Nov-26 $ 191,870.20 $ 6,081.39 $ 185,788.81 474,591,856
Dec-26 $ 246,932.71 $ 8,486.70 $ 238,446.01 579,980,686
Total-26 $ 3,014,809.53 $ 103,769.16 $ 2,911,040.37 6,971,172,654
Jan-27 $ 281,618.74 $ 10,022.93 $ 271,595.80 702,312,144
Feb-27 $ 264,324.98 $ 9,466.77 $ 254,858.21 614,313,477
Mar-27 $ 246,049.76 $ 8,650.85 $ 237,398.91 550,760,361
Apr-27 $ 209,126.35 $ 6,651.43 $ 202,474.92 486,003,099
May-27 $ 210,234.48 $ 6,568.94 $ 203,665.54 509,844,057
Jun-27 $ 239,753.05 $ 8,281.49 $ 231,471.57 537,763,919
Jul-27 $ 303,938.34 $ 11,187.40 $ 292,750.93 676,431,967
Aug-27 $ 345,295.74 $ 12,828.93 $ 332,466.81 777,053,008
Sep-27 $ 277,025.27 $ 9,355.25 $ 267,670.02 615,469,722
Oct-27 $ 198,639.91 $ 6,187.08 $ 192,452.84 486,409,373
Nov-27 $ 191,870.20 $ 6,081.39 $ 185,788.81 471,178,770
Dec-27 $ 246,932.71 $ 8,486.70 $ 238,446.01 577,027,267
Total-27 $ 3,014,809.53 $ 103,769.16 $ 2,911,040.37 7,004,567,162
Jan-28 $ 281,618.74 $ 10,022.93 $ 271,595.80 713,141,965
Feb-28 $ 264,324.98 $ 9,466.77 $ 254,858.21 639,990,977
Mar-28 $ 246,049.76 $ 8,650.85 $ 237,398.91 553,567,841
Apr-28 $ 209,126.35 $ 6,651.43 $ 202,474.92 488,102,408
May-28 $ 210,234.48 $ 6,568.94 $ 203,665.54 509,402,020
Jun-28 $ 239,753.05 $ 8,281.49 $ 231,471.57 538,127,654
Jul-28 $ 303,938.34 $ 11,187.40 $ 292,750.93 676,926,821
Aug-28 $ 345,295.74 $ 12,828.93 $ 332,466.81 777,517,523
Sep-28 $ 277,025.27 $ 9,355.25 $ 267,670.02 623,505,373
Oct-28 $ 198,639.91 $ 6,187.08 $ 192,452.84 492,285,516
Nov-28 $ 191,870.20 $ 6,081.39 $ 185,788.81 476,217,386
Dec-28 $ 246,932.71 $ 8,486.70 $ 238,446.01 582,647,496
Total-28 $ 3,014,809.53 $ 103,769.16 $ 2,911,040.37 7,071,432,980
Total 2026-2028 Idaho REP Benefits: $ 8,733,121.11
2025 Residential/Small Farm True Up: $ (3,280,335.73)
2025 Irrigation True Up: $ 965,911.06
2026-2028 Idaho Benefit: $ 6,418,696.44
Idaho Annual Benefit $ 2,139,565.48
Total 2026 Eligible Load: 6,971,172,654
Total 2027 Eligible Load: 7,004,567,162
Total 2028 Eligible Load: 7,071,432,980
2026-2028 Avg Eligible Load: 7,015,724,265
2026-2028 Total Idaho Annual Benefit: $ 2,139,565.48
2026-2028 Avg Eligible Load: _ 7,015,724,265
2026-2028 Schedule 98 Credit Rate($per kWh) $ 0.000305

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-25-34
IDAHO POWER COMPANY
ATTACHMENT NO. 3
TARIFF SCHEDULE 98
(CLEAN AND LEGISLATIVE)

Idaho Power Company First Revised Sheet No. 98-2
Cancels
I.P.U.C. No. 30, Tariff No. 101 Original Sheet No. 98-2
SCHEDULE 98
RESIDENTIAL AND SMALL FARM
ENERGY CREDIT
(Continued)
CREDIT ADJUSTMENT
An energy credit rate will be determined on an annual basis by dividing the sum of the total fiscal
year Credit, derived from the Settlement Agreement, plus a true up from the prior year Credit, if
applicable, by the sum of the calendar year projected Qualifying Electric Energy as described above.
The current energy credit rate is 0.0305 cents per kWh.
For residential and small farm Customers, the adjustment credit will be reflected on Customers'
monthly bills.
For irrigation Customers, the adjustment credit will be issued in December of each year.
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. Timothy E. Tatum, Vice President, Regulatory Affairs
Effective —January 1, 2026 1221 West Idaho Street, Boise, Idaho

Idaho Power Company 91-First Revised Sheet No. 98-2
Cancels
I.P.U.C. No. 30, Tariff No. 101 Fourth Revis d0riginal Sheet No. 98-2
SCHEDULE 98
RESIDENTIAL AND SMALL FARM
ENERGY CREDIT
(Continued)
CREDIT ADJUSTMENT
An energy credit rate will be determined on an annual basis by dividing the sum of the total fiscal
year Credit, derived from the Settlement Agreement, plus a true up from the prior year Credit, if
applicable, by the sum of the calendar year projected Qualifying Electric Energy as described above.
The current energy credit rate is 0.34470.0305 cents per kWh.
For residential and small farm Customers, the adjustment credit will be reflected on Customers'
monthly bills.
For irrigation Customers, the adjustment credit will be issued in December of each year.
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. 36067 Timothy E. Tatum, Vice President, Regulatory Affairs
Effective — danuary 1, 2024January 1, 2026 1221 West Idaho Street, Boise, Idaho