ADDED
Bureau of Land Management NEPA - National Environmental Policy Act BPA - Bonneville Power Administration NMFS - National Marine Fisheries Service CAA - Clean Air Act NPSE - Net power supply expense CO 2 - Carbon Dioxide North Valmy plant - Idaho Power s jointly-owned gas-fired generating plant in Valmy, Nevada CPCN - Certificate of Public Convenience and Necessity O M - Operations and Maintenance CWA - Clean Water Act OATT - Open Access Transmission Tariff EIS - Environmental Impact Statement OPUC - Public Utility Commission of Oregon EPA - U.S.
Environmental Protection Agency Oregon Sale - The sale of Idaho Power's Oregon electric distribution business and certain Oregon transmission assets to OTEC ESA - Endangered Species Act OTEC - Oregon Trail Electric Consumers Cooperative, Inc.
Securities and Exchange Commission GHG - Greenhouse Gas SIP - State Implementation Plan GWW - Gateway West, a high-voltage transmission line project SMSP - Security Plans for Senior Management Employees I and II HCC - Hells Canyon Complex, composed of the Brownlee, Oxbow, and Hells Canyon facilities SWIP-N - Southwest Intertie Project-North, a planned high-voltage transmission line project IDACORP - IDACORP, Inc., an Idaho Corporation USFWS - U.S.
Fish and Wildlife Service Idaho Power - Idaho Power Company, an Idaho Corporation Western EIM - Energy imbalance market implemented in the western United States Ida-West - Ida-West Energy Company, a subsidiary of IDACORP, Inc.
WMP - Wildfire Mitigation Plan IERCo - Idaho Energy Resources Co., a subsidiary of Idaho Power Company WPSC - Wyoming Public Service Commission IFS - IDACORP Financial Services, Inc., a subsidiary of IDACORP, Inc.
UTILITY OPERATIONS Background Idaho Power provided electric utility service to approximately 664,000 retail customers in southern Idaho and eastern Oregon as of December 31, 2025.
On February 13, 2026, Idaho Power entered into a definitive agreement to sell its Oregon electric distribution business and associated distribution assets, as well as certain Oregon transmission assets to OTEC.
For further information regarding the proposed transaction, see Note 22 - "Sale of Oregon Assets" to the consolidated financial statements included in this report.
The following figure represents Idaho Power's current service area without regard to the Oregon Sale.
Idaho Power is committed to working for strong, sustainable financial results by continuing to safely provide reliable and affordable energy to its customers from diversified generation resources.
REMOVED
Bureau of Land Management MW - Megawatt BPA - Bonneville Power Administration MWh - Megawatt-hour CAA - Clean Air Act NAV - Net Asset Value CO 2 - Carbon Dioxide NEPA - National Environmental Policy Act CPCN - Certificate of Public Convenience and Necessity NMFS - National Marine Fisheries Service CWA - Clean Water Act North Valmy plant - Idaho Power s jointly-owned coal-fired generating plant in Valmy, Nevada EIS - Environmental Impact Statement O M - Operations and Maintenance EPA - U.S.
Environmental Protection Agency OATT - Open Access Transmission Tariff ESA - Endangered Species Act OPUC - Public Utility Commission of Oregon Exchange Act - U.S.
Fish and Wildlife Service Ida-West - Ida-West Energy Company, a subsidiary of IDACORP, Inc.
Western EIM - Energy imbalance market implemented in the western United States IDEQ - Idaho Department of Environmental Quality WMP - Wildfire Mitigation Plan IERCo - Idaho Energy Resources Co., a subsidiary of Idaho Power Company WPSC - Wyoming Public Service Commission IFS - IDACORP Financial Services, Inc., a subsidiary of IDACORP, Inc.
UTILITY OPERATIONS Background Idaho Power provided electric utility service to approximately 649,000 retail customers in southern Idaho and eastern Oregon as of December 31, 2024.
Idaho Power is committed to working for strong, sustainable financial results by continuing to safely provide reliable, affordable, clean energy to its customers from diversified generation resources.
Idaho Power is collecting $8.8 million annually in the Idaho jurisdiction but is deferring revenue recognition of the amounts collected until the license is issued and the accumulated license costs approved for recovery are placed in service.
Power Supply Overview: Idaho Power primarily relies on company-owned hydropower, coal-fired, and gas-fired generation facilities and long-term PPAs to supply the energy needed to serve customers and to make power sales into the wholesale markets.
In addition to existing generation resources, Idaho Power has agreements to own a 300 MW wind turbine generator power plant located in Sweetwater County, Wyoming, with a planned in-service date in 2027.
Power Supply Percent of Total Generation 2024 2023 2022 2024 2023 2022 (thousands of MWh) Hydropower plants 7,203 6,548 5,347 54 % 55 % 48 % Steam-fired plants (1) 2,474 2,473 3,657 18 % 21 % 32 % Natural gas-fired plants 3,843 2,917 2,319 28 % 24 % 20 % Total system generation 13,520 11,938 11,323 Purchased power 6,541 7,027 7,178 Total power supply 20,061 18,965 18,501 (1) "Steam-fired plants" are composed of generation from plants that are fueled by only coal or by both coal and natural gas.