Idaho Power customers may face another rate increase. Why, when — and how much
Idaho Power customers could see electricity rates rise again later this spring.
The company applied for its annual power and fixed-cost adjustments with state regulators, according to a news release. The average residential customer using 900 kilowatt-hours would see their bill rise by 3.15%, or about $3.64 a month.
The power and fixed cost adjustments allow Idaho Power to pass volatile energy costs, in particular natural gas prices and lower-than-expected hydropower generation, directly to customers.
Idaho Power noted that neither it nor its shareholders would benefit financially from the adjustments.
“The increase in this year’s (power cost adjustment) is largely driven by higher expected power costs for the coming year,” the release said. “This power cost increase is attributed to lower forecasted hydropower, partially offset by lower forecasted market energy prices.”
The rate hike would take effect June 1 if the company’s applications are approved by the Idaho Public Utilities Commission.
Customers can leave written comments regarding the applications on the commission’s website. The case number for the power cost adjustment, which accounts for the bulk of the proposed increase to residential rates, is IPC-E-26-10.
Idaho Power, based in Boise, is the largest provider of electricity in the state. It has about 660,000 customers in Southern Idaho and a portion of Eastern Oregon — though it’s planning to sell its service area there to a Baker City, Oregon, cooperative in a $154 million deal now awaiting state and federal approvals.
The for-profit subsidiary of Idacorp agreed to a settlement late in 2025 that raised its annual revenue Jan. 1 by $110 million, or 7.48%. The average residential customer of Idaho Power saw their monthly bills rise then by about $12.13.
This story was originally published April 16, 2026 at 1:50 PM.
