Serving customers with reliable, affordable, clean energy has been the hallmark of our 100-year history. We continue that tradition with a goal to achieve 100% clean company-owned generation.
Our current energy mix has given us a great start on our path to 100% clean. We have plans to exit our remaining participation in coal-fired generation by the end of 2030. We also have interim targets for further reducing carbon emissions. You can track our progress here. You can also view emissions information for business customers.
*Projected, based on 2025 Integrated Resource Plan
Reducing Carbon Emissions
Carbon emissions intensity is a measure of the pounds of CO2 emitted per megawatt-hour (MWh) of energy generated. It’s a helpful measure for tracking the impact of our efforts to reduce carbon emissions relative to growing power demand — one we’ve measured and reduced since 2010.
- We achieved our most recent short-term goal of reducing our five-year average carbon emission intensity, reaching 781 pounds of CO₂ per MWh from 2021 to 2025, an approximate 35% reduction from 2005 levels.
- Interim Goals: Idaho Power has established medium-term CO2 emissions intensity reduction targets through its 2025 IRP. The IRP is Idaho Power’s biennial definitive resource planning exercise and produces our preferred resource acquisition plan for the next 20 years, which is referred to as the IRP “Preferred Portfolio.” The Preferred Portfolio includes the addition of extensive renewable resources over the 2025 to 2045 planning period as detailed in the IRP and additional transmission capacity to integrate renewable energy sources onto the grid from other regions in the West.
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Retiring Coal Plants
The Jim Bridger plant in Wyoming is owned by Idaho Power (one-third) and PacifiCorp (two-thirds). Under our 2025 Integrated Resource Plan, Idaho Power is scheduled to exit participation in coal-fired operations at Bridger by the end of 2030. Two of Bridger’s four generation units were converted to use natural gas in early 2024. Natural gas produces roughly half the carbon emissions of coal per megawatt-hour of electricity generated.
The North Valmy plant in Nevada consists of two generating units. One unit was converted from coal to natural gas in 2025. The second unit is no longer burning coal, and is being converted to run on natural gas. This unit is expected to resume generation by summer this year, continuing to provide reliable service for our customers and supporting overall transmission system reliability. Idaho Power is co-owner of North Valmy with NV Energy.
The Boardman plant in Oregon, co-owned by Idaho Power (10%) and Portland General Electric (90%), stopped coal-fired operations in October 2020.
With these recent changes and the addition of clean energy resources, we are poised to see continued reductions in both our total carbon emissions and emissions intensity in the coming years.
Emissions Reduction Report
Serving customers with reliable, affordable, clean energy has been the hallmark of our 100-year history. Today, more than half of our energy supply comes from carbon-free generation, including Idaho Power-owned hydro resources and the energy we buy through long-term contracts with wind, solar, geothermal and small-scale hydro generators. In addition to our current low-carbon profile, Idaho Power plans for CO2 reductions consistent with the preferred portfolio set forth in the the 2025 Integrated Resource Plan.