Natural gas power plants in Idaho
Idaho has 9 operating natural gas power plants with 1.3 GW of capacity. 1 came online in 2025.
- Operating9
Under 250 MW250–999 MW1 GW and up
Updated monthly. Last updated November 2026.
The largest natural gas power plants in Idaho
Operating, by capacity
| # | Natural gas power plant | Year online | Capacity |
|---|---|---|---|
| 1 | Langley Gulch Power Plant | 2012 | 319 MW |
| 2 | Rathdrum Power LLC | 2001 | 302 MW |
| 3 | Evander Andrews Power Complex | 2008 | 271 MW |
| 4 | Bennett Mountain | 2005 | 173 MW |
| 5 | Rathdrum | 1994 | 166 MW |
| 6 | IFP Peaking Plant | 2026 | 18 MW |
| 7 | Amalgamated Sugar Twin Falls | 2025 | 13 MW |
| 8 | Amalgamated Sugar LLC Nampa | 1968 | 8 MW |
| 9 | BYUI Central Energy Facility | 2015 | 6 MW |
Natural gas power plants that came online most recently in Idaho
Newest first
| # | Natural gas power plant | Year online | Capacity |
|---|---|---|---|
| 1 | IFP Peaking Plant | 2026 | 18 MW |
| 2 | Amalgamated Sugar Twin Falls | 2025 | 13 MW |
| 3 | BYUI Central Energy Facility | 2015 | 6 MW |
| 4 | Langley Gulch Power Plant | 2012 | 319 MW |
| 5 | Evander Andrews Power Complex | 2008 | 271 MW |
| 6 | Bennett Mountain | 2005 | 173 MW |
| 7 | Rathdrum Power LLC | 2001 | 302 MW |
| 8 | Rathdrum | 1994 | 166 MW |
| 9 | Amalgamated Sugar LLC Nampa | 1968 | 8 MW |
The developer behind each project is on paid plans. See plans
How Cleanview tracks natural gas power plants
Operating natural gas power plants come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.
Questions about natural gas power plants in Idaho
- How many natural gas power plants are in Idaho?
- Idaho has 9 operating utility-scale natural gas power plants with 1.3 GW of capacity, according to the EIA's monthly survey of power plants.
- What is the largest natural gas power plant in Idaho?
- Langley Gulch Power Plant in Payette County, Idaho is the largest, at 319 MW. It came online in 2012.
- How many natural gas power plants were built in Idaho in 2025?
- 1 natural gas power plant came online in Idaho in 2025, with 13 MW of capacity.
- Who is developing natural gas power plants in Idaho?
- Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.
More energy trackers for Idaho
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