Directory of Power Plants in California
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Cosumnes Power Plant | Sacramento Municipal Util Dist | Herald, CA | Balancing Authority of Northern California (BANC) | 3.1 TWh | Jan 2006 | May 2026 | Natural Gas : 98.9% Other Biomass Gas : 1.1% |
| Pastoria Energy Facility, LLC | Calpine Corp - Pastoria Energy Center | Lebec, CA | California Independent System Operator (CISO) | 3.3 TWh | Apr 2005 | May 2026 | Natural Gas |
| Delta Energy Center | Delta Energy Center LLC | Pittsburg, CA | California Independent System Operator (CISO) | 3.5 TWh | Apr 2002 | May 2026 | Natural Gas |
| High Desert Power Plant | MRP Generation Holdings, LLC | Victorville, CA | California Independent System Operator (CISO) | 3.5 TWh | Mar 2003 | May 2026 | Natural Gas |
| Geysers Unit 5-20 | Geysers Power Co LLC | Middletown, CA | California Independent System Operator (CISO) | 4.2 TWh | Mar 1971 | May 2026 | Geothermal |
| Diablo Canyon | Pacific Gas & Electric Co. | Avila Beach, CA | California Independent System Operator (CISO) | 18.4 TWh | Apr 1985 | May 2026 | Nuclear |
Browse Power Plants By California Counties
Figures are based on December 2025 generation numbers.| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Glenn County, CA | # 55 | 2 | 12.1 GWh |
| Mendocino County, CA | # 54 | 6 | 12.3 GWh |
| Marin County, CA | # 53 | 3 | 28.1 GWh |
| Sierra County, CA | # 52 | 3 | 29.3 GWh |
| Napa County, CA | # 51 | 11 | 51.2 GWh |
| Tehama County, CA | # 50 | 7 | 52.9 GWh |
| Santa Cruz County, CA | # 49 | 6 | 60.8 GWh |
| Siskiyou County, CA | # 48 | 8 | 77.3 GWh |
| San Francisco County, CA | # 47 | 10 | 79.8 GWh |
| San Mateo County, CA | # 46 | 11 | 131.4 GWh |
| Yolo County, CA | # 45 | 15 | 196.2 GWh |
| Nevada County, CA | # 44 | 12 | 225.0 GWh |
| San Benito County, CA | # 43 | 6 | 257.6 GWh |
| Mariposa County, CA | # 42 | 2 | 272.7 GWh |
| Santa Barbara County, CA | # 41 | 18 | 300.1 GWh |
| Lassen County, CA | # 40 | 9 | 337.3 GWh |
| Humboldt County, CA | # 39 | 10 | 442.1 GWh |
| Merced County, CA | # 38 | 33 | 484.8 GWh |
| Trinity County, CA | # 37 | 5 | 488.3 GWh |
| Calaveras County, CA | # 36 | 6 | 502.3 GWh |
| Mono County, CA | # 35 | 9 | 597.8 GWh |
| Amador County, CA | # 34 | 8 | 610.5 GWh |
| Ventura County, CA | # 33 | 33 | 672.3 GWh |
| Lake County, CA | # 32 | 10 | 896.8 GWh |
| Inyo County, CA | # 31 | 23 | 1.1 TWh |
| Madera County, CA | # 30 | 28 | 1.2 TWh |
| San Joaquin County, CA | # 29 | 53 | 1.5 TWh |
| Yuba County, CA | # 28 | 5 | 1.5 TWh |
| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| El Dorado County, CA | # 27 | 15 | 1.6 TWh |
| Tulare County, CA | # 26 | 71 | 1.6 TWh |
| Sutter County, CA | # 25 | 8 | 1.7 TWh |
| Placer County, CA | # 24 | 24 | 1.8 TWh |
| Colusa County, CA | # 23 | 4 | 2.2 TWh |
| Plumas County, CA | # 22 | 13 | 2.2 TWh |
| Monterey County, CA | # 21 | 29 | 2.3 TWh |
| Orange County, CA | # 20 | 59 | 2.5 TWh |
| Alameda County, CA | # 19 | 51 | 2.6 TWh |
| Stanislaus County, CA | # 18 | 25 | 2.7 TWh |
| Tuolumne County, CA | # 17 | 23 | 2.9 TWh |
| Solano County, CA | # 16 | 41 | 3.1 TWh |
| Butte County, CA | # 15 | 25 | 3.5 TWh |
| Santa Clara County, CA | # 14 | 76 | 3.5 TWh |
| Kings County, CA | # 13 | 58 | 4.0 TWh |
| San Diego County, CA | # 12 | 156 | 4.3 TWh |
| Sonoma County, CA | # 11 | 26 | 5.0 TWh |
| Sacramento County, CA | # 10 | 67 | 5.6 TWh |
| Shasta County, CA | # 9 | 46 | 7.2 TWh |
| Fresno County, CA | # 8 | 127 | 7.3 TWh |
| Imperial County, CA | # 7 | 84 | 9.9 TWh |
| San Bernardino County, CA | # 6 | 208 | 12.0 TWh |
| Contra Costa County, CA | # 5 | 59 | 12.7 TWh |
| Riverside County, CA | # 4 | 162 | 14.1 TWh |
| Los Angeles County, CA | # 3 | 319 | 16.8 TWh |
| San Luis Obispo County, CA | # 2 | 22 | 20.5 TWh |
| Kern County, CA | # 1 | 317 | 34.2 TWh |