Directory of Power Plants in Idaho
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Magic Dam Hydroelectric Project | Wood Hydro, LLC | Shoshone, ID | Idaho Power Company (IPCO) | 14.3 GWh | Apr 1989 | Jul 2025 | Water |
| Mainline Windfarm | Mountain Air Projects, LLC | Glenns Ferry, ID | Idaho Power Company (IPCO) | 52.2 GWh | Nov 2012 | Dec 2025 | Wind |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.5 GWh | Jul 1985 | Oct 2025 | Water |
| Marsh Valley Development | Marsh Valley Development Inc | McCammon, ID | PacifiCorp East (PACE) | 3.5 GWh | Mar 1993 | Dec 2025 | Water |
| Matrix Pleasant Valley | Pleasant Valley Solar, LLC | Boise, ID | Idaho Power Company (IPCO) | 503.6 GWh | Feb 2025 | May 2026 | Solar |
| MC6 Hydro Facility | MC6 Hydro Facility | Kuna, ID | Idaho Power Company (IPCO) | 8.4 GWh | Mar 2021 | Oct 2025 | Water |
| Meadow Creek Project Company | Ridgeline Energy LLC | Idaho Falls, ID | PacifiCorp East (PACE) | 292.3 GWh | Nov 2012 | Dec 2025 | Wind |
| Mile 28 Water Power Project | Wood Hydro, LLC | Eden, ID | Idaho Power Company (IPCO) | 5.3 GWh | May 1994 | Oct 2025 | Water |
| Milner Butte LFGE | Southern Idaho Solid Waste | Burley, ID | Idaho Power Company (IPCO) | 26.7 GWh | Sep 2018 | Dec 2025 | Landfill Gas |
| Milner Dam Wind Park LLC | Idaho Wind Partners 1 LLC | Burley, ID | Idaho Power Company (IPCO) | 50.5 GWh | Jan 2011 | Dec 2025 | Wind |
| Milner Hydro | Idaho Power Co | Murtaugh, ID | Idaho Power Company (IPCO) | 33.7 GWh | Aug 1992 | Dec 2025 | Water |
| Minidoka | U S Bureau of Reclamation | Rupert, ID | Bonneville Power Administration (BPAT) | 98.8 GWh | May 1927 | Dec 2025 | Water |
| Mink Creek Hydro | Mink Creek Hydro Entity | Preston, ID | PacifiCorp East (PACE) | 8.7 GWh | Nov 1986 | Dec 2025 | Water |
| Mora Drop Hydroelectric Project | Boise Project Board of Control | Kuna, ID | Idaho Power Company (IPCO) | 4.6 GWh | May 2006 | Oct 2025 | Water |
| Mountain Home | Hot Springs Windfarm, LLC | Mountain Home, ID | Idaho Power Company (IPCO) | 31.2 GWh | Apr 2008 | May 2026 | Wind |
| Moyie Springs | City of Bonners Ferry (ID) | Moyie Springs, ID | Bonneville Power Administration (BPAT) | 21.4 GWh | Nov 1921 | Dec 2025 | Water |
| Mt. Home Solar 1, LLC | Standard Solar | Pocatello, ID | Idaho Power Company (IPCO) | 48.5 GWh | Feb 2017 | Dec 2025 | Solar |
| Murphy Flat Solar | Murphy Flat Power, LLC | Murphy, ID | Idaho Power Company (IPCO) | 43.1 GWh | Mar 2017 | May 2026 | Solar |
Browse Power Plants By Idaho Counties
Figures are based on May 2026 generation numbers.| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Ada County, ID | # 8 | 14 | 1.2 TWh |
| Adams County, ID | # 31 | 1 | 13.7 GWh |
| Bannock County, ID | # 20 | 4 | 89.2 GWh |
| Bingham County, ID | # 12 | 2 | 504.9 GWh |
| Blaine County, ID | # 29 | 2 | 16.8 GWh |
| Boise County, ID | # 24 | 1 | 46.8 GWh |
| Bonner County, ID | # 9 | 2 | 1.1 TWh |
| Bonneville County, ID | # 4 | 13 | 1.8 TWh |
| Boundary County, ID | # 17 | 2 | 108.6 GWh |
| Butte County, ID | # 34 | 1 | 7.8 GWh |
| Canyon County, ID | # 26 | 4 | 39.5 GWh |
| Caribou County, ID | # 18 | 4 | 102.4 GWh |
| Cassia County, ID | # 15 | 10 | 282.9 GWh |
| Clark County, ID | # 32 | 2 | 10.4 GWh |
| Clearwater County, ID | # 6 | 2 | 1.5 TWh |
| Elmore County, ID | # 1 | 26 | 2.9 TWh |
| Franklin County, ID | # 23 | 2 | 48.1 GWh |
| Fremont County, ID | # 21 | 4 | 87.8 GWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Gem County, ID | # 22 | 2 | 62.9 GWh |
| Gooding County, ID | # 10 | 14 | 773.4 GWh |
| Jefferson County, ID | # 33 | 1 | 9.2 GWh |
| Jerome County, ID | # 16 | 13 | 168.0 GWh |
| Kootenai County, ID | # 2 | 4 | 2.6 TWh |
| Lemhi County, ID | # 35 | 1 | 56.0 MWh |
| Lincoln County, ID | # 30 | 3 | 15.3 GWh |
| Madison County, ID | # 27 | 1 | 37.7 GWh |
| Minidoka County, ID | # 19 | 2 | 98.8 GWh |
| Nez Perce County, ID | # 13 | 1 | 473.0 GWh |
| Owyhee County, ID | # 14 | 3 | 401.1 GWh |
| Payette County, ID | # 5 | 1 | 1.7 TWh |
| Power County, ID | # 11 | 6 | 635.3 GWh |
| Teton County, ID | # 28 | 2 | 24.2 GWh |
| Twin Falls County, ID | # 7 | 40 | 1.3 TWh |
| Valley County, ID | # 25 | 1 | 40.3 GWh |
| Washington County, ID | # 3 | 2 | 2.3 TWh |