Idaho Power Files Annual Power Cost Adjustment

BOISE, Idaho - Idaho Power has filed the Power Cost Adjustment (PCA), the final piece of its annual spring cost adjustments, with the Idaho Public Utilities Commission (IPUC).

If approved, the combined impact of the PCA and the Fixed Cost Adjustment (FCA) will be a monthly bill increase of 3.15%, or approximately $3.64, for a typical residential customer using 900 kilowatt-hours per month. All Idaho customer classes will see a price increase if the requests are approved as filed.

The June 1 price changes include the combined impact of the following:

• The PCA requests an overall increase of $51.56 million, or 3.02%. The PCA is a cost-recovery tool that passes on both the benefits and costs of supplying energy to Idaho Power customers.
• The FCA, filed on March 13, requested an increase of $5.12 million. The FCA applies only to residential and small commercial customers and adjusts prices based on changes in energy use per customer during the previous year.

If approved as filed, new rates will take effect June 1, 2026. Impacts for all Idaho customers are shown in the table below. The actual percentage will depend on a customer's classification and the rate they pay.

¹Includes lighting schedules; ²Includes special contracts; ³Totals may not sum due to rounding

The PCA has two main components: a balancing account for power costs incurred the previous year and a forecast of what energy will cost in the coming year.

• The balancing account aligns last year's anticipated costs with costs actually incurred during the prior April through March period.
• The forecast reflects Idaho Power's anticipated fuel costs, purchased power costs, and customer benefits from sales of surplus energy for the coming April through March.

The increase in this year's PCA is largely driven by higher expected power costs for the coming year. This power cost increase is attributed to lower forecasted hydropower, partially offset by lower forecasted market energy prices.

Neither Idaho Power nor its shareholders receive any financial return from the PCA - money collected is used to recover costs or credit benefits associated with annual fluctuations in power costs.

Opportunities for Public Review

Idaho Power's filings are subject to public review and approval by the IPUC. Copies of the applications 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. Written comments regarding Idaho Power's applications associated with the PCA (Case No. IPC-E-26-10) 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 nearly 2,200 employees proudly serve more than 660,000 customers with a culture of safety first, integrity always, and respect for all.

Jordan Rodriguez
Communications Specialist
[email protected]
208-388-2460