20251208News Release.pdf

Idaho Public Utilities Commission Brad Littte,Governor
PO Box 83720. Boise. ID 83720-00% Edward Lodge, President
John R.Hammond, Jr.,Commissioner
Dayn Hardie,Commissioner
Case No. IPC-E-25-29
Order No. 36854
Contact: Adam Rush
Office: [phone]
E-mail: [e-mail]
NEWS RELEASE: Commission is accepting written comments on electric utility's project to
expand power plant.
BOISE (Dec. 8, 2025)—The Idaho Public Utilities Commission is accepting written comments
until late January on an application from Idaho Power to expand the utility's Bennett Mountain
Power Plant located near Mountain Home. The Bennett Gas Expansion Project proposes to add
up to 167 megawatts of natural gas-fueled reciprocating engines to meet a capacity deficit.
The utility's application seeks a Certificate of Public Convenience and Necessity for the
expansion, as well as approval to accrue Allowance for Funds Used During Construction
(AFUDC) costs from the time the project was deemed viable and initial expenses were incurred.
AFUDC is the cost of capital incurred while a utility is working on a long-term project, and is a
method to account for money and recover financing costs a utility commits to long-term projects.
The Commission is accepting written comments on Idaho Power's application until Jan. 23,
2026. Comments are required to be filed through the Commission's website or by e-mail unless
computer access is not available. To submit comments through the website, please visit
puc.idaho.gov and click on the "Case Comment Form" link on the upper left side of the page.
Please use case number IPC-E-25-29 when filling out the form. If using e-mail, comments are
required to be sent to the commission secretary and Idaho Power at the e-mail addresses listed
below. Commenters are required to include their name, address and case number IPC-E-25-29. If
computer access is not available, comments can be mailed to the commission secretary and Idaho
Power at the addresses listed below. Commenters are required to include their name, address and
case number IPC-E-25-29 in correspondence.
For the Idaho Public Utilities Commission:
Idaho Public Utilities Commission
Commission Secretary
P.O. Box 83720

Boise, ID 83702
[e-mail]
For Idaho Power:
Donovan Walker
Tim Tatum
1221 West Idaho Street(83702)
P.O. Box 70
Boise, ID 83707
[e-mail]
[e-mail]
[e-mail]
Additional information on Idaho Power's application is available at:
puc.idaho.gov/case/Details/7630.