For the third time in two years, Idaho Power has issued a formal request for proposals for new capacity and energy resources to help the company meet growing demand for electricity in southern Idaho and eastern Oregon.
The company’s latest request for proposals (RFP) seeks resources to come online by June of 2026 and 2027.
Idaho Power currently serves more than 610,000 customers in southern Idaho and eastern Oregon, a region that continues to experience rapid growth. The company anticipates sustained growth in demand for electricity, requiring new electric resources to serve customers and maintain system reliability.
The company’s long-range planning process has identified a need for additional electric resources to serve customers during periods of peak demand, typically late afternoon and evening hours in the summer months.
The RFP seeks bids for a combination of capacity and energy resources that provide approximately 350 megawatts (MW) of peak capacity and up to 1,100 MW of variable energy resources. Idaho Power will accept bids for energy or capacity incremental to its system beginning in the summer of 2026 and beyond from Resource Based Products and Market Purchase Products.
Idaho Power holds (or expects to hold) transmission rights on various paths that could be used for energy delivery. These include capacity from the planned Boardman to Hemingway (B2H) transmission line project. Idaho Power and other utilities in the region expect B2H to be in service prior to summer 2026. B2H is a proposed 500-kilovolt transmission line that will connect the proposed Longhorn Substation near Boardman, Oregon, to Idaho Power’s existing Hemingway Substation in Owyhee County, Idaho.
Idaho Power currently owns 17 hydroelectric power plants on the Snake River and its tributaries, which are the backbone of the company’s clean, low-cost energy mix.
Potential developers interested in submitting proposals, or others with questions can reference further details at idahopower.com/resourcerequests or email ResourceRFP@idahopower.com for more information.
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’s goal to provide 100% clean energy by 2045 builds on its long history as a clean-energy leader that provides reliable service at affordable prices. 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 2,000 employees proudly serve more than 610,000 customers with a culture of safety first, integrity always and respect for all.