20260121Notice_of_Application_Order_No_36909.pdf

Office of the Secretary
Service Date
January 21,2026
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF IDAHO POWER ) CASE NO. IPC-E-25-36
COMPANY'S 2025 VARIABLE ENERGY )
RESOURCE INTEGRATION STUDY AND ) NOTICE OF APPLICATION
PROPOSED UPDATE TO SCHEDULE 87 )
NOTICE OF SUSPENSION OF
PROPOSED EFFECTIVE DATE
NOTICE OF INTERVENTION
DEADLINE
ORDER NO. 36909
On December 26, 2025, Idaho Power Company ("Company") applied to the Idaho Public
Utilities Commission ("Commission") requesting approval of the Company's proposed Schedule
87,Intermittent Generation Integration Charges("Schedule 87"),updated rates,effective February
1, 2026, for which the Company's 2025 Variable Energy Resource ("VER") Integration Study
("2025 VER Study")was the basis of, and acknowledgement that the Company complied with the
Commission's directives in Order No. 36661.
NOTICE OF APPLICATION
YOU ARE HEREBY NOTIFIED that the Company was directed by the Commission to
work with Commission Staff("Staff') prior to the next VER study to resolve any outstanding
issues cited in Staff's Comments in Case No. IPC-E-25-07, and to file a new VER study within 6
months after the filing of each Integrated Resource Plan("IRP"). Order No. 36661.
YOU ARE FURTHER NOTIFIED that the Company stated that it met with Staff on June
23,2025, and July 2, 2025,to resolve Staff's issues cited in Case No. IPC-E-25-07. Application at
4. The Company believed that at the end of the discussions, both Staff and the Company mostly
agreed on the methodology to be used as part of the 2025 VER Study.Id.
YOU ARE FURTHER NOTIFIED that the Company stated that the 2025 VER Study
methodology was developed by modifying the 2024 VER Study methodology to align with the
additions and modifications suggested by Staff.Id. at 6.
YOU ARE FURTHER NOTIFIED that the Company included the 2025 VER Study as
Attachment 1 to the Application.
NOTICE OF APPLICATION
NOTICE OF INTERVENTION DEADLINE
ORDER NO. 36909 1

YOU ARE FURTHER NOTIFIED that the 2025 VER Study builds on the preferred
portfolio and regulating reserve requirements established in the Company's most recently filed
IRP. Id. at 7.
YOU ARE FURTHER NOTIFIED that the Company utilized Energy Exemplar's Aurora
model to quantify the cost of integrating non-dispatchable resources by modeling the regulating
reserves required to maintain system reliability, expressed as up-regulation and down-regulation
ancillary services.Id.
YOU ARE FURTHER NOTIFIED that to isolate the incremental impact of additional
VERB, the Company evaluated four use cases consisting of 100 megawatts ("MW") and 200 MW
additions of solar and wind generation, with block sizes informed by prior consultation with the
Technical Review Committee ("TRC") and Staff. Id. Each incremental resource was modeled as
a must-take addition to the 2025 IRP preferred portfolio to reflect Public Utility Regulatory
Policies Act("PURPA") obligations, and integration costs were calculated by comparing modeled
outcomes with and without ancillary services across base and incremental resource cases.Id. at 8.
YOU ARE FURTHER NOTIFIED that the Company believed that the resulting analysis
supported Schedule 87 integration charges for up to 200 MW each of incremental wind and solar,
which were determined to be reasonable based on TRC consultation and the Company's
commitment to update the VER study and associated charges following each IRP filing. Id. The
Company stated that this update cadence was intended to ensure that integration costs remain
current and reflective of actual VER penetration levels and the rapidly evolving resource and load
growth environment.Id. at 9.
YOU ARE FURTHER NOTIFIED that the Company included the proposed Schedule 87
as Attachment 2 to the Application.
YOU ARE FURTHER NOTIFIED that the Application and attachments are available for
public inspection during regular business hours at the Commission's office. The Application and
attachments are also available on the Commission's website at www.pue.idaho.gov. Click on the
"ELECTRIC" icon, select "Open Cases," and click on the case number as shown on the front of
this document.
YOU ARE FURTHER NOTIFIED that all proceedings in this case will be held pursuant
to the Commission's jurisdiction under Title 61 of the Idaho Code, and that all proceedings in this
NOTICE OF APPLICATION
NOTICE OF INTERVENTION DEADLINE
ORDER NO. 36909 2

matter will be conducted pursuant to the Commission's Rules of Procedure, IDAPA 31.01.01.000
et seq.
SUSPENSION OF PROPOSED EFFECTIVE DATE
The Company filed its Application on December 26, 2025, proposing a February 1, 2026,
effective date.The Commission finds that the Company's proposed effective date does not provide
adequate time for Staff, and interested persons, to evaluate the Company's proposal. Pursuant to
Idaho Code§ 61-622,the Commission suspends the proposed changes for thirty(30)days and five
(5)months or until the Commission enters an order accepting,rejecting,or modifying the proposed
rate increases.
NOTICE OF INTERVENTION DEADLINE
YOU ARE FURTHER NOTIFIED that persons desiring to intervene in this matter to
obtain parties' rights of participation must file a Petition to Intervene with the Commission
pursuant to this Commission's Rules of Procedure 72 and 73, IDAPA 31.01.01.072 and -.073.
Persons who wish to intervene as a party must file a Petition to Intervene no later than
twenty-one(21)days after the date of service of this Order. Such persons shall also provide the
Commission Secretary with their email address to facilitate further communications. After the
intervention deadline runs,the Commission Secretary shall issue a Notice of Parties that identifies
the parties and assigns exhibit numbers to each party. Once the Notice of Parties has issued,
Commission Staff shall informally confer with the Company and any intervening parties about
how to further process this case and shall then report back to the Commission on a proposed case
schedule.
YOU ARE FURTHER NOTIFIED that persons who would like to present their views
without parties' rights of participation and cross-examination do not have to intervene but may
present their views by submitting written comments to the Commission.
NOTICE OF APPLICATION
NOTICE OF INTERVENTION DEADLINE
ORDER NO. 36909 3

YOU ARE FURTHER NOTIFIED that the following people are designated as the
Company's representatives in this matter:
Donovan Walker Timothy E. Tatum
1221 West Idaho Street(83702) Riley Maloney
P.O. Box 70 Mary Alice Taylor
Boise, Idaho 83707 1221 West Idaho Street (83702)
dwalker(d),idahopower.com P.O. Box 70
dockets&idahopower.com Boise, Idaho 83707
ttatum(a),idahopower.com
rmaloney(kidahopower.com
mtaylor(a,idahopower.com
ORDER
IT IS HEREBY ORDERED that the Company's proposed effective date of February 1,
2026, is suspended for thirty (30) days plus five (5) months or until the Commission enters an
earlier order accepting, rejecting, or modifying the proposed rate increases.
IT IS FURTHER ORDERED that persons desiring to intervene in this matter must file a
Petition to Intervene no later than twenty-one (21) days from the service date of this Order. Once
the deadline has passed, the Commission Secretary shall prepare and issue a Notice of Parties.
IT IS FURTHER ORDERED that,after the Notice of Parties has issued, Commission Staff
shall confer with the parties regarding a procedural schedule for this matter including,if necessary,
a hearing in this matter.
IT IS FURTHER ORDERED that parties comply with Order No. 35375, issued April 21,
2022. Generally, all pleadings should be filed with the Commission electronically and will be
deemed timely filed when received by the Commission Secretary.See Rule 14.02. Service between
parties should continue to be accomplished electronically when possible. However, voluminous
discovery-related documents may be filed and served on CD-ROM or a USB flash drive.
NOTICE OF APPLICATION
NOTICE OF INTERVENTION DEADLINE
ORDER NO. 36909 4

DONE by Order of the Idaho Public Utilities Commission at Boise, Idaho this 21" day of
January, 2026.
G
EDWARD LODGE, PF IDENT
J R. HAMMOND JR., COMMISSIONER
DAYN HAA IE, COMMISSIONER
ATTEST:
I Jjqs-L,
M n a baAeg-MuAez
Commission Secretary
I:\Legal\ELECTRIC\IPC-E-25-36_V ER\orders\ntc_app_sus_int_em.docx
NOTICE OF APPLICATION
NOTICE OF INTERVENTION DEADLINE
ORDER NO. 36909 5