Natural Gas Power Plants in Idaho
Every operating natural gas power plant in Idaho on EIA-860M for 2026-07: 9 plants, 24 generating units and 1 GW of nameplate capacity across 7 counties.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 9
- 24 generating units
- Nameplate capacity
- 1 GW
- Counties
- 7
- Grid operator
- Mixed
- no single ISO covers a majority
Map of natural gas power plants in Idaho
Every one of the 9 plants is drawn at the coordinate EIA files for it.
Loading map…
- Natural gas · 9
List of natural gas power plants in Idaho
Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.
| Langley Gulch Power PlantNatural Gas Fired Combined Cycle | Idaho Power Co | Payette | 318.5 | 2 | 2012 | Operating |
| Rathdrum Power LLCNatural Gas Fired Combined Cycle | Rathdrum Power LLC | Kootenai | 301.5 | 2 | 2001 | Operating |
| Evander Andrews Power ComplexNatural Gas Fired Combustion Turbine | Idaho Power Co | Elmore | 270.9 | 3 | 2001 | Operating |
| Bennett MountainNatural Gas Fired Combustion Turbine | Idaho Power Co | Elmore | 172.8 | 1 | 2005 | Operating |
| RathdrumNatural Gas Fired Combustion Turbine | Avista Corp | Kootenai | 166.4 | 2 | 1994 | Operating |
| IFP Peaking PlantNatural Gas Internal Combustion Engine | City of Idaho Falls - (ID) | Bonneville | 17.5 | 7 | 2026 | Operating |
| Amalgamated Sugar Twin FallsNatural Gas Steam Turbine | The Amalgamated Sugar Co | Twin Falls | 12.7 | 4 | 1948 | Operating |
| Amalgamated Sugar LLC NampaNatural Gas Steam Turbine | Amalgamated Sugar Co-Nampa | Canyon | 8.2 | 2 | 1948 | Operating |
| BYUI Central Energy FacilityNatural Gas Fired Combustion Turbine | Brigham Young Univ Idaho | Madison | 5.6 | 1 | 2015 | Operating |
Largest natural gas power plants in Idaho
- 1Langley Gulch Power PlantPayette County, Idaho318.5 MW
- 2Rathdrum Power LLCKootenai County, Idaho301.5 MW
- 3Evander Andrews Power ComplexElmore County, Idaho270.9 MW
- 4Bennett MountainElmore County, Idaho172.8 MW
- 5RathdrumKootenai County, Idaho166.4 MW
- 6IFP Peaking PlantBonneville County, Idaho17.5 MW
- 7Amalgamated Sugar Twin FallsTwin Falls County, Idaho12.7 MW
- 8Amalgamated Sugar LLC NampaCanyon County, Idaho8.2 MW
- 9BYUI Central Energy FacilityMadison County, Idaho5.6 MW
Natural gas power plants by county in Idaho
The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.
| County | Plants | Nameplate MW |
|---|---|---|
| Kootenai | 2 | 467.9 |
| Elmore | 2 | 443.7 |
| Payette | 1 | 318.5 |
| Bonneville | 1 | 17.5 |
| Twin Falls | 1 | 12.7 |
| Canyon | 1 | 8.2 |
| Madison | 1 | 5.6 |
Natural Gas Power Plants in Idaho: FAQ
- How many natural gas power plants are in Idaho?
- 9, with 1 GW of nameplate capacity between them, spread over 7 counties. That is the EIA-860M operating count for 2026-07.
- Is there a map of Idaho natural gas power plants?
- Yes — the map above. Each dot is one natural gas power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
- Which is the largest natural gas power plant in Idaho?
- Langley Gulch Power Plant, at 319 MW. The table is sorted largest first, so the rest follow it.
- Is there a natural gas power plant near me in Idaho?
- The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
- Which grid operator runs Idaho's natural gas power plants?
- No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Idaho is largely a vertically integrated utility rather than an organised market.
- How current is this, and what is left out?
- EIA-860M for 2026-07. Combined cycle, combustion turbine, steam turbine, internal combustion and other gas-fired units. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.