Idaho Power 2025 General Rate Case

On May 30, 2025, Idaho Power filed a general rate case with the Idaho Public Utilities Commission (IPUC) requesting an overall rate increase of $199.1 million, or 13.09%, for Idaho customers. The IPUC will evaluate this request over the next several months, and any resulting changes will not take effect until at least January 2026.  

What is a general rate case? 

A general rate case is a proceeding used by the IPUC to review the costs of operating and maintaining the utility system and how those costs are allocated among customers.  

Why is Idaho Power filing a general rate case?

Establishing new general rates will ensure Idaho Power covers the costs of safely and reliably providing electric service, including investing in new energy resources, continuing to modernize the grid, improving our wildfire resilience, and investing in the people and resources that help us serve our growing customer base. This requested increase includes:

A graphic showing what the requested $199.1 million will go toward: • $73 million for energy production and storage resources, including investing in the continued safe, reliable operation of existing generation facilities and installing additional batteries to improve system reliability and capacity • $53 million for grid investments, including upgrading, replacing, or constructing new power lines, substations, and other infrastructure necessary to ensure safe, reliable operations • $25 million for wildfire resilience, including the equipment, technology, and resources necessary to prevent fires, protect communities, and to make Idaho Power’s system more resilient to wildfire • $20 million for labor as the company hires additional employees and ensures it can retain the skilled workforce required to serve the growing region • $28 million for other investments, including technology resources, fleet vehicles, office and operational facilities, and other expenses necessary to run a healthy and effective utility

What are the proposed customer impacts? 

If the request is approved as filed, the average Idaho residential customer using 900 kilowatt-hours per month would see a monthly bill increase of about $21.66. Proposed impacts for all Idaho customers are shown in the table below. Actual percentages will depend on a customer’s classification, the rate they pay, and final approval from the IPUC. This rate filing impacts Idaho customers only.  

General Rate Case Request
Percentage Change from Current Billed Revenue

Residential Small General Service Large General Service1Large Power2Irrigation
17.35%17.31%7.26%8.22%17.32%
1 Includes lighting schedules; 2 Includes special contracts

As part of the rate case, Idaho Power is proposing to increase the residential service charge from $15 to $25. By implementing a higher service charge, a larger portion of a customers’ monthly bill will be collected through the fixed charge rather than the variable energy charge. The intent is to make fixed cost collection more equitable among residential customers.  

What is Idaho Power doing to keep costs down?

Idaho Power has a strong track record of keeping its costs — and prices — low. The company has saved money and improved reliability by performing certain maintenance tasks with its own crews and refurbishing outdated equipment in-house. Idaho Power also strives to help customers save energy and money through energy efficiency. In 2024, energy efficiency programs saved 143,537 megawatt-hours — enough to power 12,600 average-sized homes for a year. While Idaho Power remains committed to affordability, unprecedented levels of capital investment necessary to meet growing customer demands and maintain our infrastructure is driving the need for this request.

What resources does Idaho Power have to help customers struggling to pay their energy bill?

Project Share is a year-round energy assistance program administered by the Salvation Army and funded by customer donations and Idaho Power shareholder funds. Idaho Power also offers energy assistance programs and convenient features like Budget Pay that can help customers manage their energy bills.

What happens next?

Proceedings with the IPUC will last about seven months, with any resulting changes going into effect no sooner than January 2026.

A graphic showing the timeline of Idaho Power's general rate case, with the filing happening May 2025; IPUC review happening summer/fall 2025; and Idaho Power implementing IPUC-approved rates in January 2026 or later.

How can I learn more? 

For the latest case documents and updates, visit the IPUC’s website and reference case No. IPC-E-25-16. To leave a public comment about the case, use the IPUC’s online case comment form.  

If you have additional questions, call us at 1-800-632-6605.