History of Idaho Power in Timeline

By Popular Timelines Editorial Team · Updated: June 14, 2025

Idaho Power Company (IPC), a subsidiary of IDACORP, Inc., is a regulated electrical power utility providing electricity in eastern Oregon and southern Idaho. Its operations encompass the entire electricity value chain: purchase, sale, generation, transmission, and distribution. The company's service area spans 24,000 square miles around the Snake River and its tributaries.

May 6, 1915: Idaho Power Company Incorporation

On May 6, 1915, Idaho Power Company originally filed for incorporation in Maine.

1968: Completion of Hells Canyon Complex

In 1968, Idaho Power completed the three-dam Hells Canyon Complex, consisting of Brownlee Dam, Oxbow Dam, and Hells Canyon Dam.

October 1, 1998: Reincorporation in Idaho

On October 1, 1998, Idaho Power Company was reincorporated in Idaho as a subsidiary of IDACORP, Inc.

2005: Baseline for Carbon Emissions Reduction

Since 2005, Idaho Power has reduced its carbon emissions intensity by almost 50 percent.

2009: Resolution to Reduce Carbon Emissions

In 2009, Idaho Power adopted a resolution to reduce carbon emissions.

2018: "Drive Electric Week" Car Show

In 2018, Idaho Power sponsored the annual "Drive Electric Week" car show event at the state capitol, providing an opportunity for people to learn about electric vehicles.

2019: Goal to Provide 100-Percent Clean Energy

In 2019, Idaho Power set a goal to provide 100-percent clean energy by 2045, planning additional investments in wind, solar and other clean sources.

2023: Electricity Generation Mix

In 2023, the electricity sold by Idaho Power Company (IPC) was generated from various sources: 36.8% hydroelectric, 15.4% natural gas, 13.0% coal, 9.8% wind, 5.4% solar, 2.3% geothermal, biomass & other sources, and 17.3% was purchased from other generation companies.