Directory of Power Plants in Idaho
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Soda | PacifiCorp | Soda Springs, ID | PacifiCorp East (PACE) | 19.1 GWh | Jun 1924 | Dec 2024 | Water |
| Cassia Wind | Cassia Wind Farm, LLC | Hagerman, ID | Idaho Power Company (IPCO) | 18.7 GWh | Feb 2009 | Mar 2025 | Wind |
| Hidden Hollow Energy | Hidden Hollow Energy LLC | Boise, ID | Idaho Power Company (IPCO) | 18.1 GWh | Dec 2006 | Dec 2024 | Landfill Gas |
| Island Park | Fall River Rural Elec Coop Inc | Island Park, ID | Bonneville Power Administration (BPAT) | 17.9 GWh | Mar 1994 | Dec 2024 | Water |
| Clear Lake | Idaho Power Co | Buhl, ID | Idaho Power Company (IPCO) | 16.7 GWh | Nov 1937 | Dec 2024 | Water |
| Tamarack Energy | Tamarack Energy | New Meadows, ID | Idaho Power Company (IPCO) | 14.1 GWh | May 1983 | Mar 2025 | Wood/Wood Waste Solids |
| Bannock County LFG to Energy | Bannock County Landfill | Pocatello, ID | Idaho Power Company (IPCO) | 12.8 GWh | Apr 2014 | Mar 2025 | Landfill Gas |
| Birch Creek Power | Birch Power Co | Terreton, ID | PacifiCorp East (PACE) | 12.6 GWh | Mar 1986 | Dec 2024 | Water |
| Mink Creek Hydro | Mink Creek Hydro Entity | Preston, ID | PacifiCorp East (PACE) | 11.0 GWh | Nov 1986 | Dec 2024 | Water |
| Rock Creek I | Shorock Hydro Inc | Twin Falls, ID | Idaho Power Company (IPCO) | 10.6 GWh | Aug 1983 | Dec 2024 | Water |
| Dry Creek Project | Dry Creek LLC | Howe, ID | PacifiCorp East (PACE) | 10.1 GWh | Nov 1987 | Dec 2024 | Water |
| Crystal Springs | Crystal Springs Hydro Elec LP | Filer, ID | Idaho Power Company (IPCO) | 9.4 GWh | Dec 1987 | Dec 2024 | Water |
| Kettle Butte Digester, LLC | Kettle Butte Digester, LLC | Roberts, ID | PacifiCorp East (PACE) | 9.2 GWh | Apr 2011 | Dec 2024 | Other Biomass Gas |
| Big Sky Dairy Digester | DF-AP #1 LLC | Gooding, ID | Idaho Power Company (IPCO) | 8.8 GWh | Dec 2008 | Dec 2024 | Other Biomass Gas |
| Dietrich Drop | Wood Hydro, LLC | Shoshone, ID | Idaho Power Company (IPCO) | 8.3 GWh | Jul 1990 | Oct 2024 | Water |
| Boise R Diversion | U S Bureau of Reclamation | Boise, ID | Idaho Power Company (IPCO) | 7.9 GWh | May 2004 | Dec 2024 | Water |
| Chester Diversion Hydroelectric Project | Fall River Rural Elec Coop Inc | Chester, ID | Bonneville Power Administration (BPAT) | 7.7 GWh | Apr 2014 | Mar 2025 | Water |
| MC6 Hydro Facility | MC6 Hydro Facility | Kuna, ID | Idaho Power Company (IPCO) | 7.3 GWh | Mar 2021 | Oct 2024 | Water |
| Marsh Valley Development | Marsh Valley Development Inc | McCammon, ID | PacifiCorp East (PACE) | 6.9 GWh | Mar 1993 | Apr 2024 | Water |
| Barber Dam | Barber Pool Hydro LLC | Boise, ID | Idaho Power Company (IPCO) | 6.7 GWh | Jul 1990 | Dec 2024 | Water |
| Rock Creek II | Hydroland Omega LLC | Twin Falls, ID | Idaho Power Company (IPCO) | 5.8 GWh | Jul 1990 | Dec 2023 | Water |
| Lower No 2 | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 5.4 GWh | Jul 1940 | Oct 2024 | Water |
| Mile 28 Water Power Project | Wood Hydro, LLC | Eden, ID | Idaho Power Company (IPCO) | 5.3 GWh | May 1994 | Dec 2024 | Water |
| West Point RNG | Camco International Group, Inc. | Wendell, ID | Idaho Power Company (IPCO) | 5.2 GWh | Jul 2024 | Dec 2024 | Other Biomass Gas |
| Little Mac Project | Little Mac Power Company | Buhl, ID | Idaho Power Company (IPCO) | 5.0 GWh | Apr 1984 | Dec 2024 | Water |
| Little Wood Hydro Project | Littlewood Irrigation District | Carey, ID | Idaho Power Company (IPCO) | 4.8 GWh | Jan 1985 | Sep 2024 | Water |
| North Gooding Main Hydro | North Gooding Main Hydro LLC | Gooding, ID | Idaho Power Company (IPCO) | 4.6 GWh | Sep 2016 | Oct 2024 | Water |
| Head of U Canal Hydro Project | North Side Energy Company | Jerome, ID | Idaho Power Company (IPCO) | 4.5 GWh | May 2015 | Oct 2024 | Water |
| Last Chance | PacifiCorp | Grace, ID | PacifiCorp East (PACE) | 4.5 GWh | Jan 1984 | Dec 2024 | Water |
| Blind Canyon Hydro | Blind Canyon Aquaranch, Inc. | Wendell, ID | Idaho Power Company (IPCO) | 4.4 GWh | Mar 1992 | Oct 2024 | Water |
| Mora Drop Hydroelectric Project | Boise-Kuna Irrigation District | Kuna, ID | Idaho Power Company (IPCO) | 4.3 GWh | May 2006 | Oct 2024 | Water |
| Fargo Drop | Riverside Investments LLC | Wilder, ID | Idaho Power Company (IPCO) | 3.8 GWh | Mar 2013 | Oct 2024 | Water |
| AJMS, LLC | AJMS, LLC | Shoshone, ID | Idaho Power Company (IPCO) | 3.8 GWh | Sep 2015 | Dec 2024 | Water |
| Koyle Ranch Hydroelectric Project | Koyle Hydro Inc | Gooding, ID | Idaho Power Company (IPCO) | 3.8 GWh | Nov 1983 | Oct 2024 | Water |
| Ford Hydro LP | Ford Hydro Ltd Partnership | Weippe, ID | Avista Corporation (AVA) | 3.7 GWh | Feb 1988 | Dec 2024 | Water |
| GeoBon II | Koosh, Inc. | Shoshone, ID | Idaho Power Company (IPCO) | 3.5 GWh | Aug 1986 | Oct 2024 | Water |
| Clif Bar Bakery of Twin Falls | Clif Bar Bakery of Twin Falls, LLC | Twin Falls, ID | Idaho Power Company (IPCO) | 2.8 GWh | May 2019 | Dec 2023 | Solar |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.5 GWh | Jul 1985 | Oct 2024 | Water |
| Lateral 10 Ventures | Lateral 10 Ventures | Buhl, ID | Idaho Power Company (IPCO) | 1.4 GWh | Oct 1984 | Dec 2024 | Water |
| Salmon Diesel | Idaho Power Co | Salmon, ID | Idaho Power Company (IPCO) | 54.0 MWh | Nov 1967 | Feb 2025 | Distillate Fuel Oil |
Browse Power Plants By Idaho Counties
Figures are based on March 2025 generation numbers.| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Elmore County, ID | # 1 | 26 | 3.1 TWh |
| Kootenai County, ID | # 2 | 4 | 2.3 TWh |
| Washington County, ID | # 3 | 2 | 2.2 TWh |
| Bonneville County, ID | # 4 | 13 | 2.0 TWh |
| Payette County, ID | # 5 | 1 | 1.7 TWh |
| Clearwater County, ID | # 6 | 2 | 1.4 TWh |
| Twin Falls County, ID | # 7 | 40 | 1.4 TWh |
| Bonner County, ID | # 8 | 2 | 1.0 TWh |
| Gooding County, ID | # 9 | 14 | 845.4 GWh |
| Power County, ID | # 10 | 6 | 695.8 GWh |
| Ada County, ID | # 11 | 13 | 621.6 GWh |
| Bingham County, ID | # 12 | 2 | 470.9 GWh |
| Owyhee County, ID | # 13 | 3 | 461.7 GWh |
| Nez Perce County, ID | # 14 | 1 | 389.8 GWh |
| Cassia County, ID | # 15 | 10 | 367.0 GWh |
| Jerome County, ID | # 16 | 13 | 188.4 GWh |
| Minidoka County, ID | # 17 | 2 | 111.7 GWh |
| Caribou County, ID | # 18 | 4 | 111.6 GWh |
| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Fremont County, ID | # 19 | 4 | 105.6 GWh |
| Boundary County, ID | # 20 | 2 | 103.9 GWh |
| Bannock County, ID | # 21 | 4 | 91.2 GWh |
| Gem County, ID | # 22 | 2 | 58.8 GWh |
| Canyon County, ID | # 23 | 4 | 53.2 GWh |
| Franklin County, ID | # 24 | 2 | 53.0 GWh |
| Boise County, ID | # 25 | 1 | 42.0 GWh |
| Madison County, ID | # 26 | 1 | 39.9 GWh |
| Valley County, ID | # 27 | 1 | 37.4 GWh |
| Teton County, ID | # 28 | 2 | 27.8 GWh |
| Blaine County, ID | # 29 | 2 | 24.7 GWh |
| Lincoln County, ID | # 30 | 3 | 15.7 GWh |
| Adams County, ID | # 31 | 1 | 14.1 GWh |
| Clark County, ID | # 32 | 2 | 12.6 GWh |
| Butte County, ID | # 33 | 1 | 10.1 GWh |
| Jefferson County, ID | # 34 | 1 | 9.2 GWh |
| Lemhi County, ID | # 35 | 1 | 54.0 MWh |