20250314APPLICATION.pdf

"4%6h-0IQAHO POWER.
RECEIVED
, 2025
MEGAN GOICOECHEA-ALLEN March Idahoo Public
Corporate Counsel Utilities Commission
mgoicoecheaallenidahopower.com
March 14, 2025
Commission Secretary
Idaho Public Utilities Commission
11331 W. Chinden Boulevard
Building 8, Suite 201-A
Boise, Idaho 83714
Re: Case No. IPC-E-25-11
Idaho Power Company's Application for Authority to Implement Fixed Cost
Adjustment("FCA") Rates for Electric Service from June 1, 2025 Through May
31, 2026.
Dear Commission Secretary:
Attached for electronic filing, please find Idaho Power Company's Application in
the above-entitled matter.
In addition, please find attached the Direct Testimony of Grant T. Anderson filed in
support of the Application. A Word version of the testimony will also be sent in a separate
email for the convenience of the Reporter.
If you have any questions about the attached documents, please do not hesitate
to contact me.
Sincerely,
nlhL I l
of V
Megan Goicoechea Allen
MGA:sg
Attachments
1221 W. Idaho St(83702)
P.O. Box 70
Boise, ID 83707

MEGAN GOICOECHEA ALLEN (ISB No. 7623)
Idaho Power Company
1221 West Idaho Street (83702)
P.O. Box 70
Boise, Idaho 83707
Telephone: [phone]
Facsimile: [phone]
mgoicoecheaallen(a)idahopower.com
Attorney for Idaho Power Company
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF IDAHO POWER )
COMPANY'S APPLICATION FOR ) CASE NO. IPC-E-25-11
AUTHORITY TO IMPLEMENT FIXED )
COST ADJUSTMENT ("FCA") RATES ) APPLICATION
FOR ELECTRIC SERVICE FROM JUNE 1, )
2025 THROUGH MAY 31, 2026. )
Idaho Power Company ("Idaho Power" or "Company"), in accordance with Idaho
Code §§ 61-502 and 61-503 and Commission Rule of Procedure' 52, hereby respectfully
makes application to the Idaho Public Utilities Commission ("Commission") for an order
authorizing Idaho Power to implement Fixed Cost Adjustment ("FCA") rates for electric
service from June 1, 2025 through May 31, 2026, and to approve the Company's
corresponding Schedule 54, Fixed Cost Adjustment. With this filing the Company
proposes a $40,657,141 or 5.28 percent, decrease for Residential and Small General
Service customers. If the FCA is approved as filed, a typical residential customer using
' Hereinafter cited as RP.
APPLICATION - 1

950 kilowatt-hours per month will see an approximate $6.35 decrease to their monthly
bill.
In support of this Application, Idaho Power represents as follows:
I. BACKGROUND
1. Idaho Power and the Commission have long agreed that promotion of cost-
effective energy efficiency and demand-side management ("DSM") "is an integral part of
least-cost electric service."2 To this end, the Company considers energy efficiency and
demand response to be an important and necessary part of a balanced approach to
meeting system energy needs and endeavors to provide customers with programs and
knowledge through its DSM programs to help them use electricity wisely.
2. In 2024, Idaho Power achieved 143,599 megawatt-hours ("MWh") of
incremental annual energy efficiency savings on a system-wide basis, which exceeded
the economic technical achievable potential included in the 2023 Integrated Resource
Plan ("IRP"). The 2024 savings represent enough energy to power approximately 12,600
average homes in Idaho Power's service area for one year. These energy savings are
more particularly described in the Demand-Side Management 2024 Annual Report filed
in Case No. IPC-E-25-12. The Company also invests in significant DSM educational and
awareness activities and marketing efforts, which are also described in the DSM Annual
Report, that are likely to result in energy savings experienced by customers but are not
quantified or claimed as part of Idaho Power's annual savings.
3. Unfortunately, traditional rate design that recovers fixed costs through each
kilowatt-hour ("kWh") sold discourages utilities from reducing their sales volumes through
2 In the Matter of the Investigation of Financial Disincentives to Investment in Energy Efficiency by Idaho
Power Company, Case No. IPC-E-04-15, Order No. 30267, p. 13 (Mar. 12, 2007).
APPLICATION - 2

investment in energy efficiency and DSM. The development of the FCA was driven by a
desire to remove the inherent financial disincentives that exist when the Company invests
in DSM resources.
4. Desiring to encourage investments in cost-effective energy efficiency
despite the impediments, the Commission recognized that "opportunities exist[ed] for
improvements in operating efficiency that would benefit the Company shareholders and
its customers" and opened an investigation in Case No. IPC-E-04-15 to consider options
for a performance-based mechanism that adjusts revenues when annual energy
consumption is either above or below normal.3 The FCA mechanism is the collaborative
result of that case.
5. In Order No. 30267,4 the Commission approved a stipulation for the
implementation of a three-year FCA pilot program applicable to Residential Service
(Schedules 1, 3, 4, and 5) and Small General Service (Schedule 7) customers.
Subsequently, on October 1, 2009, the Company filed an application seeking authority to
convert Schedule 54, the FCA tariff schedule, from a pilot program to an ongoing,
permanent program, asserting that the mechanism had fulfilled the purpose of removing
disincentives to energy efficiency investments undertaken by the Company to the benefit
of its customers.5 At that time, however, the Commission found it was too early to
determine whether the objectives of the FCA were being met and denied Idaho Power's
3 Id., Order No. 29558, p. 1 (Aug. 10, 2004) (citing Order No. 29505, p. 68-69).
4 Id.
5 In the Matter of the Application of Idaho Power Company for Authority to Convert Schedule 54-Fixed
Cost Adjustment—From a Pilot Schedule to an Ongoing, Permanent Schedule, Case No. I PC-E-09-28.
APPLICATION - 3

request as a result. Instead, it extended the pilot program for an additional two-year
period.6
6. During the fifth year of the pilot program, the Company filed another
application seeking authority to convert the FCA to an ongoing, permanent program.'This
time the Commission approved the Company's request to convert the FCA to a
permanent program for the Residential and Small General Service customers, and though
it ultimately directed that the FCA mechanism continue with its then-existing methodology,
it also noted that it would continue to review the FCA to ensure its ongoing effectiveness.$
7. The Commission subsequently opened another docket to re-evaluate the
FCA mechanism, Case No. IPC-E-14-17, ultimately approving a settlement stipulation
that changed the methodology to calculate the level of actual fixed costs recovered used
to determine the FCA.9 The modification to the calculation of the actual level of fixed costs
recovered replaced weather-normalized billed sales with actual billed sales and began
with the determination of the 2015 FCA.
8. In 2021, the Commission approved another modification to the FCA
mechanism that instituted separate and reduced fixed cost tracking and recovery for new
Residential and Small General Service customers added to the Company's system
starting January 1, 2022.10 Through this modification, the authorized level of fixed cost
recovery for new customers excludes generation and transmission-related fixed costs but
6 Id., Order No. 31063, p. 8-9 (Apr. 29, 2010).
In the Matter of the Application of Idaho Power Company for Authority to Convert Schedule 54-Fixed
CostAdjustment—From a Pilot Schedule to an Ongoing, Permanent Schedule, Case No. IPC-E-11-19.
$ Id., Order No. 32505, p. 9 (Mar. 30, 2012) and Order No. 32731 p. 4-5 (Jan. 31, 2013).
s In the Matter of the Commission's Inquiry into Idaho Power Company's Fixed Cost Adjustment
Mechanism, Case No. IPC-E-14-17, Order No. 33295, p. 5-6 (May 15, 2015).
10 Idaho Power Company's Application for Modification of the Fixed Cost Adjustment Mechanism, Case
No. IPC-E-21-39, Order No. 35273, p. 4 (Dec. 28, 2021).
APPLICATION -4

continues to include distribution and other customer-related fixed costs. The approved
modification was implemented beginning with the determination of the 2022 FCA deferral
calculation.
9. More recently, various updates were incorporated into the FCA to reflect
Commission-approved changes stemming from the Company's 2023 General Rate
Case." First, the fixed cost per customer ("FCC") and fixed cost per energy rate ("FCE")
rates were reset based on the results of Case No. IPC-E-23-11 and "new" customers
were also reset to be those customers added starting January 1, 2024. Second, Schedule
6 and Schedule 8 have separate determination of use per customer ("UPC"), FCC, and
FCE for these customer classes. Third, the UPC and a time-differentiated FCE applied to
residential customers taking service under the optional time-of-use service offering under
Schedule 5 or Schedule 6.
10. Finally, in accordance with Order No. 36048 issued in Case No. IPC-E-23-
14, the 2024 FCA deferral includes a one-time adjustment to recover the conversion of
accumulated kWh credits into a financial credit for residential and small general service
customers ("One-Time Net Billing Adjustment").12
11. As more fully set forth below, the 2024 FCA deferral amount, determined in
accordance with the Commission-approved method including the modifications and
updates approved in Case Nos. IPC-E-21-39 and IPC-E-23-11, as well as the One-Time
Net Billing Adjustment resulting from Case No. IPC-E-23-14, reflects that the Company
"In the Matter of the Application of Idaho Power Company for Authority to Increase Its Rates and Charges for
Electric Service in the State ofldaho and for Associated Regulatory Accounting Treatment, Case No. IPC-E-23-11,
Order No. 36042(Dec.28,2023)(approving settlement stipulation)and Order No. 36067(Jan.23,2024)(approving
updated tariffs submitted in compliance filings).
"See In the Matter of the Application ofldaho Power Company for Authority to Implement Changes to the
Compensation Structure Applicable to Customer On-Site Generation Under Schedules 6, 8, and 84 and to Establish
and Export Credit Rate, Case No.IPC-E-23-14,Order No. 36048(Dec.29,2023).
APPLICATION - 5

over-collected its authorized level of fixed costs, and the Company therefore requests
authority to refund the 2024 FCA deferral balance through its proposed 2025-2026 FCA
rates.
II. THE FCA MECHANISM
12. The FCA mechanism enables Idaho Power to separate, or "decouple," its
fixed cost revenues from its volumetric energy sales and provides symmetry through a
surcharge or credit when fixed cost recovery per customer, on an actual billed sales basis,
varies above or below a Commission-established base. In other words, the FCA provides
a "true-up" of the collection of fixed costs per customer to recover the difference between
the level of fixed costs recovered on an actual billed sales basis by the Company through
rates and the level of fixed costs authorized for recovery in the Company's most recent,
applicable general rate case.
13. The FCA works identically for both the Residential and Small General
Service classes. For each class, the number of customers is multiplied by the fixed cost
per customer rate, which is established as part of determining the Company's authorized
revenue requirement in its most recent general rate case. The product of this calculation
establishes the "authorized fixed cost recovery" amount. This authorized fixed cost
recovery amount is then compared to the amount of fixed costs actually recovered by
Idaho Power. To determine the "actual fixed costs recovered" amount, the Company
multiplies the actual billed sales for each class by the fixed cost per energy rate, as
established in the Company's most recent applicable general rate case. The difference
between these two numbers (the "authorized fixed cost recovery" amount minus the
"actual fixed costs recovered" amount) is the fixed cost adjustment for each class.
APPLICATION - 6

14. As a result of Case No. IPC-E-21-39, the FCC and FCE are bifurcated for
new and existing customers, with new customer components labeled as "FCC-Dist" and
"FCE-Dist". For both new and existing customers, the basis for fixed cost tracking is the
same, the Company's most recent, applicable general rate case. Existing customer FCC
and FCE represent fixed costs associated with the Company's generation-, transmission-
, and distribution-related system components, though starting with the 2022 deferral, only
the distribution-related system cost components are tracked for new customers. While
the differences between authorized and actual fixed cost recovery are calculated
independently for existing and new customers in order to determine the total FCA deferral,
the 2024 FCA deferral is ultimately recovered through a single FCA rate applicable to all
Residential customers, new and existing, and a single FCA rate applicable to all Small
General Service customers.
III. THE 2024 FCA AND
PROPOSED 2025-2026 FCA RATE ADJUSTMENT
15. In this filing, the Company is requesting crediting of the 2024 FCA balance
and approval of the corresponding rates. The determination of the FCA deferral balance
and corresponding rates are described in the Direct Testimony of Grant T. Anderson
("Anderson Testimony") filed contemporaneously with this Application.
16. As shown on Exhibit No. 4 of the Anderson Testimony, the proposed FCA
is $2,936,820.93 for the Residential class and $114,953.11 for the Small General Service
class, for a total amount of $3,051,774.04, which is less than the current FCA deferral
balance currently collected in customers' rates. Anderson Testimony at 16.
17. Accordingly, with this Application, Idaho Power is proposing a rate
adjustment for the Residential and Small General Service classes to allow for the crediting
APPLICATION - 7

of the fixed costs that were over-collected through actual billed energy charges during the
year. More specifically, based on the 2024 FCA deferral balance and the Company's
forecasted energy sales for June 1, 2025, through May 31, 2026, the Company is
proposing an annual decrease of $40,657,141 or 5.28 percent, from current billed
revenue for the affected customer classes. Anderson Testimony at 20 and Exhibit No. 6.
This increase equates to new FCA credit of 0.0503 cents per kWh for the Residential
class and 0.0614 cents per kWh for the Small General Service class. Anderson Testimony
at 18 and Exhibit No. 5.
18. Idaho Power requests that the new FCA rates become effective on June 1,
2025, coincident with the Company's annual Power Cost Adjustment, and that the FCA
rates remain in effect until May 31, 2026.
19. The proposed FCA tariff(clean version), Schedule 54, is attached hereto as
Attachment 1 to this Application. The Schedule 54 tariff in legislative format is attached
hereto as Attachment 2.
IV. MODIFIED PROCEDURE
20. Idaho Power believes that a technical hearing is not necessary to consider
the issues presented herein and respectfully requests that this Application be processed
under Modified Procedure; i.e., by written submissions rather than by hearing. RP 201, et
seq. The Company has, however, contemporaneously filed the Anderson Testimony and
stands ready to present its testimony and support the Application if the Commission
determines that a technical hearing is required.
APPLICATION - 8

V. COMMUNICATIONS AND SERVICE OF PLEADINGS
21. In conformance with RP 125, this Application will be brought to the attention
of Idaho Power's customers by means of both a press release to media in the Company's
service area and a customer notice distributed in customers' bills, both of which
accompany this filing as Attachment 3. The customer notice will be distributed over the
course of the Company's current billing cycles, with the last notice being sent on or about
April 25, 2025. Idaho Power will also keep its Application, testimony, and exhibits open
for public inspection at its offices throughout the state of Idaho. Idaho Power believes the
above procedures satisfy the Rules of Practice and Procedure of this Commission;
however, the Company will, in the alternative, bring the Application to the attention of its
affected customers through any other means directed by this Commission.
22. Communications and service of pleadings with reference to this Application
should be sent to the following:
Megan Goicoechea Allen Connie Aschenbrenner
Regulatory Dockets Grant T. Anderson
Idaho Power Company Idaho Power Company
1221 West Idaho Street (83702) 1221 West Idaho Street (83702)
P.O. Box 70 P.O. Box 70
Boise, Idaho 83707 Boise, Idaho 83707
mgoicoecheaallen(a-)_idahopower.com caschenbrenner(a�_idahopower.com
docketsCa-)-idahopower.com ganderson(cDidahopower.com
VI. REQUEST FOR RELIEF
23. Idaho Power respectfully requests that the Commission issue an order: (1)
authorizing that this matter be processed by Modified Procedure and (2) authorizing Idaho
Power to implement Fixed Cost Adjustment credit rates for electric service from June 1,
2025, through May 31, 2026, of 0.0503 cents per kWh for the Residential classes, and
APPLICATION - 9

0.0614 cents per kWh for the Small General Service classes as described above and in
the Anderson Testimony and Exhibits. If approved, the 2025-2026 FCA rates will
decrease annual billed revenue for the Residential and Small General Service classes by
$40,657,141 or 5.28 percent, effective June 1, 2025.
DATED at Boise, Idaho, this 14t" day of March 2025.
MEGAN G ICOECHEA ALLEN
Attorney for Idaho Power Company
APPLICATION - 10

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-25-11
IDAHO POWER COMPANY
ATTACHMENT 1
PROPOSED TARIFF SCHEDULE 54
(CLEAN)

Idaho Power Company Third Revised Sheet No. 54-2
Cancels
I.P.U.C. No. 30, Tariff No. 101 Second Revised Sheet No. 54-2
SCHEDULE 54
FIXED COST ADJUSTMENT
(Continued)
FIXED COST PER ENERGY RATE (Continued)
Residential FCE FCE-Dist
Schedules 1 and 3 6.16510 per kWh 2.06920 per kWh
Schedule 5— Summer On-Peak 16.26980 per kWh 6.99890 per kWh
Schedule 5— Mid-Peak 8.13450 per kWh 3.49900 per kWh
Schedule 5— Summer Off-Peak 4.06750 per kWh 1.74970 per kWh
Schedule 5— Non-Summer On-Peak 7.79900 per kWh 2.20590 per kWh
Schedule 5— Non-Summer Off-Peak 5.19930 per kWh 1.47050 per kWh
Schedule 6 6.42940 per kWh 2.64000 per kWh
Small General Service FCE FCE-Dist
Schedule 7 3.84630 per kWh 0.52820 per kWh
Schedule 8 5.23080 per kWh 1.49490 per kWh
ALLOWED FIXED COST RECOVERY AMOUNT
The Allowed Fixed Cost Recovery amount is computed by summing 1)the product of the average
number of existing Residential and Small General Service customers multiplied by the appropriate
Residential and Small General Service FCC rate and 2) the product of the average number of new
Residential and Small General Service customers multiplied by the appropriate Residential and Small
General Service FCC-Dist rate.
ACTUAL FIXED COSTS RECOVERED AMOUNT
The Actual Fixed Costs Recovered amount is computed by summing 1) the product of the actual
energy load for existing Residential and Small General Service customers multiplied by the appropriate
Residential and Small General Service FCE rate and 2) the product of the actual energy load for new
Residential and Small General Service customers multiplied by the appropriate Residential and Small
General Service FCE-Dist rate.
FIXED COST ADJUSTMENT
The Fixed Cost Adjustment (FCA) is the difference between the Allowed Fixed Cost Recovery
Amount and the Actual Fixed Costs Recovered Amount divided by the estimated weather-normalized
energy load for the following year for Residential and Small General Service Customers.
The monthly Fixed Cost Adjustment for Residential Service (Schedules 1, 3, 5, and 6) is (0.0503)
cents per kWh. The monthly Fixed Cost Adjustment for Small General Service (Schedules 7 and 8) is
(0.0614) cents per kWh.
EXPIRATION
The Fixed Cost Adjustment included on this schedule will expire May 31, 2026.
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. Timothy E. Tatum, Vice President, Regulatory Affairs
Effective —June 1, 2025 1221 West Idaho Street, Boise, Idaho

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-25-11
IDAHO POWER COMPANY
ATTACHMENT 2
PROPOSED TARIFF SCHEDULE 54
(LEGISLATIVE)

Idaho Power Company SeGGRd Third Revised Sheet No. 54-2
Cancels
I.P.U.C. No. 30, Tariff No. 101 €4&t-Second Revised Sheet No. 54-2
SCHEDULE 54
FIXED COST ADJUSTMENT
(Continued)
FIXED COST PER ENERGY RATE (Continued)
Residential FCE FCE-Dist
Schedules 1 and 3 6.16510 per kWh 2.06920 per kWh
Schedule 5— Summer On-Peak 16.26980 per kWh 6.99890 per kWh
Schedule 5— Mid-Peak 8.13450 per kWh 3.49900 per kWh
Schedule 5— Summer Off-Peak 4.06750 per kWh 1.74970 per kWh
Schedule 5— Non-Summer On-Peak 7.79900 per kWh 2.20590 per kWh
Schedule 5— Non-Summer Off-Peak 5.19930 per kWh 1.47050 per kWh
Schedule 6 6.42940 per kWh 2.64000 per kWh
Small General Service FCE FCE-Dist
Schedule 7 3.84630 per kWh 0.52820 per kWh
Schedule 8 5.23080 per kWh 1.49490 per kWh
ALLOWED FIXED COST RECOVERY AMOUNT
The Allowed Fixed Cost Recovery amount is computed by summing 1)the product of the average
number of existing Residential and Small General Service customers multiplied by the appropriate
Residential and Small General Service FCC rate and 2) the product of the average number of new
Residential and Small General Service customers multiplied by the appropriate Residential and Small
General Service FCC-Dist rate.
ACTUAL FIXED COSTS RECOVERED AMOUNT
The Actual Fixed Costs Recovered amount is computed by summing 1) the product of the actual
energy load for existing Residential and Small General Service customers multiplied by the appropriate
Residential and Small General Service FCE rate and 2) the product of the actual energy load for new
Residential and Small General Service customers multiplied by the appropriate Residential and Small
General Service FCE-Dist rate.
FIXED COST ADJUSTMENT
The Fixed Cost Adjustment (FCA) is the difference between the Allowed Fixed Cost Recovery
Amount and the Actual Fixed Costs Recovered Amount divided by the estimated weather-normalized
energy load for the following year for Residential and Small General Service Customers.
The monthly Fixed Cost Adjustment for Residential Service (Schedules 1, 3, 5, and 6) is
0.6182.(0.0503) cents per kWh. The monthly Fixed Cost Adjustment for Small General Service
(Schedules 7 and 8) is 0.7638 0.0614 cents per kWh.
EXPIRATION
The Fixed Cost Adjustment included on this schedule will expire May 31, 20256.
IDAHO Issued by IDAHO POWER COMPANY
Issued per Order No. 36042 Timothy E. Tatum, Vice President, Regulatory Affairs
Effective— daR ary 1, 2025June 1.2025 1221 West Idaho Street, Boise, Idaho
dViGe Ne 24_nn

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-25-11
IDAHO POWER COMPANY
ATTACHMENT 3
CUSTOMER NOTICE AND BILL INSERT

�IQAFIO�POM�R,�
NewsRelease
Idaho Power Proposes Rate Decrease with Annual Fixed Cost Adjustment
Idaho Power has filed the first of two annual cost adjustments with the Idaho Public Utilities
Commission (IPUC).This year's Fixed Cost Adjustment (FCA) requests a decrease of$40.66 million,
or 5.28%, for residential and small general service customers in Idaho.
If the FCA proposal is approved as filed, a typical residential customer using 950 kilowatt-hours per
month would see about a $6.36 decrease to their monthly bill beginning June 1. However,the final
impact to customer bills won't be known until a second annual adjustment, the Power Cost Adjustment
(PCA), is filed April 15.
Percentage Change from Current Billed Revenue
Filing Revenue Change Residential Small General Overall Change
(millions) Service Service
FCA -$40.66 million -5.28% -5.39% -5.28%
The FCA adjusts prices up or down based on changes in energy use per customer during the prior
year. It is a true-up mechanism that separates energy sales from revenue to remove financial
disincentives for Idaho Power to invest in demand-side management,which can contribute to use per
customer declining.
In 2024, Idaho Power's energy efficiency programs saved 143,537 megawatt hours — enough energy to
power about 12,600 average-sized homes for a year. Idaho Power values demand-side management,
energy efficiency, and education programs, and the FCA allows the company to provide these programs
to residential and small general service customers without negative financial impacts.
The FCA allows Idaho Power to recover an IPUC-authorized level of fixed costs — costs associated with
things like generation plants, power lines, and substations — per customer. If the company collects
more than the authorized amount, it refunds the difference to customers through a credit, which is
being proposed as part of this year's filing. If the company collects less than the authorized fixed-cost
amount, it can collect the difference through a surcharge.
Opportunities for Public Review
Idaho Power's filing is subject to public review and approval by the IPUC. Copies of the application are
available to the public at the IPUC offices (11331 W. Chinden Blvd. Building 8, Suite 201-A, Boise, ID
83714), Idaho Power offices, on idahopower.com, or at the IPUC website, puc.idaho.gov. Customers
may also subscribe to the IPUC's RSS feed to receive periodic updates via email about the case. Written

comments (Case No. IPC-E-25-11) regarding Idaho Power's application may be filed with the IPUC
(puc.idaho.gov/form/casecomment).
About Idaho Power
Idaho Power, headquartered in vibrant and fast-growing Boise, Idaho, has been a locally operated
energy company since 1916.Today, it serves a 24,000-square-mile area in Idaho and Oregon.The
company has a long history of safely providing reliable, affordable, clean energy. With 17 low-cost
hydroelectric projects at the core of its diverse energy mix, Idaho Power's residential, business, and
agricultural customers pay among the nation's lowest prices for electricity. Its 2,100 employees proudly
serve more than 650,000 customers with a culture of safety first, integrity always, and respect for all.
Jordan Rodriguez
Communications Specialist
[e-mail]
208-388-2460

0
Idaho Power Files Annual
Fixed Cost Adjustment
Idaho Power has filed the first of two annual cost
adjustments with the Idaho Public Utilities Commission
(IPUC).This year's Fixed Cost Adjustment(FCA)requests
a decrease of$40.66 million,or 5.28%,for residential
and small general service customers in Idaho.
If the FCA proposal is approved as filed,a typical
residential customer using 950 kilowatt-hours per month
would see about a $6.36 decrease to their monthly bill
beginning June 1. However,the final impact to customer
bills won't be known until a second annual adjustment,
the Power Cost Adjustment(PCA), is filed April 15.
Percentage Change f rom
Current Billed - - -
Revenue Small
Filing Change Residential General Overall
(millions) Service Service Change
FCA -$40.66 -5.28% -5.39% -5.28%
The FCA adjusts prices up or down based on changes
in energy use per customer during the prior year. It is
a true-up mechanism that separates energy sales from
revenue to remove financial disincentives for Idaho
Power to invest in demand-side management,which can
contribute to use per customer declining.

In 2024, Idaho Power's energy efficiency programs saved
143,537 megawatt hours—enough energy to power
about 12,600 average-sized homes for a year. Idaho Power
values demand-side management, energy efficiency, and
education programs, and the FCA allows the company to
provide these programs to residential and small general
service customers without negative financial impacts.
The FCA allows Idaho Power to recover an IPUC-
authorized level of fixed costs—costs associated with
things like generation plants, power lines, and substations
—per customer. If the company collects more than
the authorized amount, it refunds the difference to
customers through a credit,which is the case for 2024. If
the company collects less than the authorized fixed-cost
amount, it can collect the difference through a surcharge.
Opportunities for Public Review
Idaho Power's filing is subject to public review and
approval by the IPUC. Copies of the application are
available to the public at the IPUC offices(11331 W.
Chinden Blvd. Building 8, Suite 201-A, Boise, ID 83714),
Idaho Power offices,on idahopower.com, or at the IPUC
website, puc.idaho.gov. Customers may also subscribe to
the IPUC's RSS feed to receive periodic updates via email
about the case.Written comments(Case No. IPC-E-25-11)
regarding Idaho Power's application may be filed with the
IPUC (puc.idaho.gov/form/casecomment).
i'
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