Directory of Power Plants in Idaho
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Langley Gulch Power Plant | Idaho Power Co | New Plymouth, ID | Idaho Power Company (IPCO) | 1.8 TWh | May 2012 | Jan 2025 | Natural Gas |
| Last Chance | PacifiCorp | Grace, ID | PacifiCorp East (PACE) | 3.4 GWh | Jan 1984 | Dec 2023 | Water |
| Lateral 10 Ventures | Lateral 10 Ventures | Buhl, ID | Idaho Power Company (IPCO) | 3.8 GWh | Oct 1984 | Dec 2023 | Water |
| Little Mac Project | Little Mac Power Company | Buhl, ID | Idaho Power Company (IPCO) | 4.5 GWh | Apr 1984 | Dec 2023 | Water |
| Little Wood Hydro Project | Littlewood Irrigation District | Carey, ID | Idaho Power Company (IPCO) | 6.4 GWh | Jan 1985 | Sep 2023 | Water |
| Low Line Rapids | Lower Lowline LLC | Kimberly, ID | Idaho Power Company (IPCO) | 8.9 GWh | Jul 1990 | Oct 2023 | Water |
| Lower Malad | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 106.8 GWh | Sep 1948 | Dec 2023 | Water |
| Lower No 1 | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 39.6 GWh | Mar 1982 | Dec 2023 | Water |
| Lower No 2 | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 4.5 GWh | Jul 1940 | Oct 2023 | Water |
| Lower Salmon | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 187.9 GWh | Jan 1949 | Dec 2023 | Water |
| Lucky Peak Power Plant Project | Boise-Kuna Irrigation District | Boise, ID | Idaho Power Company (IPCO) | 331.8 GWh | Sep 1988 | Dec 2023 | Water |
Browse Power Plants By Idaho Counties
Figures are based on January 2025 generation numbers.| County | State Rank | Active Plants | Jan 2025 Generation |
|---|---|---|---|
| Ada County, ID | # 11 | 11 | 634.8 GWh |
| Adams County, ID | # 31 | 1 | 13.9 GWh |
| Bannock County, ID | # 19 | 4 | 90.8 GWh |
| Benewah County, ID | # 35 | 1 | 8.8 GWh |
| Bingham County, ID | # 14 | 2 | 383.1 GWh |
| Blaine County, ID | # 29 | 2 | 26.4 GWh |
| Boise County, ID | # 27 | 1 | 35.5 GWh |
| Bonner County, ID | # 8 | 2 | 980.2 GWh |
| Bonneville County, ID | # 5 | 12 | 1.6 TWh |
| Boundary County, ID | # 20 | 2 | 66.9 GWh |
| Butte County, ID | # 32 | 1 | 12.5 GWh |
| Canyon County, ID | # 23 | 4 | 53.2 GWh |
| Caribou County, ID | # 18 | 4 | 92.8 GWh |
| Cassia County, ID | # 15 | 10 | 259.9 GWh |
| Clark County, ID | # 34 | 1 | 9.2 GWh |
| Clearwater County, ID | # 6 | 2 | 1.4 TWh |
| Elmore County, ID | # 2 | 26 | 2.3 TWh |
| Franklin County, ID | # 24 | 2 | 53.0 GWh |
| Fremont County, ID | # 17 | 4 | 98.9 GWh |
| County | State Rank | Active Plants | Jan 2025 Generation |
|---|---|---|---|
| Gem County, ID | # 22 | 2 | 56.9 GWh |
| Gooding County, ID | # 9 | 14 | 750.7 GWh |
| Idaho County, ID | # 36 | 1 | 3.6 GWh |
| Jefferson County, ID | # 33 | 1 | 9.2 GWh |
| Jerome County, ID | # 16 | 13 | 163.7 GWh |
| Kootenai County, ID | # 1 | 4 | 2.7 TWh |
| Lemhi County, ID | # 37 | 1 | 47.0 MWh |
| Lincoln County, ID | # 30 | 3 | 14.5 GWh |
| Madison County, ID | # 25 | 1 | 39.9 GWh |
| Minidoka County, ID | # 21 | 2 | 59.4 GWh |
| Nez Perce County, ID | # 13 | 1 | 388.0 GWh |
| Owyhee County, ID | # 12 | 3 | 418.9 GWh |
| Payette County, ID | # 4 | 1 | 1.8 TWh |
| Power County, ID | # 10 | 6 | 658.9 GWh |
| Teton County, ID | # 28 | 2 | 26.7 GWh |
| Twin Falls County, ID | # 7 | 40 | 1.2 TWh |
| Valley County, ID | # 26 | 1 | 35.5 GWh |
| Washington County, ID | # 3 | 2 | 2.1 TWh |