| State Rank | County | Net Generation (Past Year) | Power Plants |
|---|
| #1 | Kern County, CA | 32.7 TWh | 293 |
| #2 | Los Angeles County, CA | 21.1 TWh | 290 |
| #3 | San Luis Obispo County, CA | 20.5 TWh | 20 |
| #4 | Riverside County, CA | 14.0 TWh | 158 |
| #5 | Contra Costa County, CA | 13.3 TWh | 50 |
| #6 | San Bernardino County, CA | 13.3 TWh | 196 |
| #7 | Imperial County, CA | 10.3 TWh | 83 |
| #8 | Fresno County, CA | 8.4 TWh | 104 |
| #9 | Shasta County, CA | 6.8 TWh | 46 |
| #10 | Sacramento County, CA | 6.4 TWh | 63 |
| #11 | Sonoma County, CA | 5.2 TWh | 24 |
| #12 | San Diego County, CA | 5.1 TWh | 148 |
| #13 | Santa Clara County, CA | 4.3 TWh | 73 |
| #14 | Kings County, CA | 3.9 TWh | 54 |
| #15 | Butte County, CA | 3.7 TWh | 25 |
| #16 | Monterey County, CA | 3.7 TWh | 29 |
| #17 | Tuolumne County, CA | 3.3 TWh | 23 |
| #18 | Orange County, CA | 3.2 TWh | 58 |
| #19 | Solano County, CA | 3.1 TWh | 40 |
| #20 | Colusa County, CA | 2.8 TWh | 3 |
| #21 | Alameda County, CA | 2.6 TWh | 43 |
| #22 | Stanislaus County, CA | 2.6 TWh | 24 |
| #23 | Placer County, CA | 2.5 TWh | 21 |
| #24 | San Joaquin County, CA | 2.3 TWh | 40 |
| #25 | Plumas County, CA | 1.9 TWh | 13 |
| #26 | Sutter County, CA | 1.8 TWh | 7 |
| #27 | El Dorado County, CA | 1.7 TWh | 15 |
| #28 | Yuba County, CA | 1.7 TWh | 4 |
| #29 | Inyo County, CA | 1.2 TWh | 23 |
| #30 | Madera County, CA | 969.7 GWh | 26 |
| #31 | Lake County, CA | 900.9 GWh | 10 |
| #32 | Tulare County, CA | 891.1 GWh | 53 |
| #33 | Ventura County, CA | 795.5 GWh | 30 |
| #34 | Mono County, CA | 794.9 GWh | 9 |
| #35 | Amador County, CA | 780.8 GWh | 7 |
| #36 | Calaveras County, CA | 713.3 GWh | 6 |
| #37 | Trinity County, CA | 545.3 GWh | 5 |
| #38 | Humboldt County, CA | 474.0 GWh | 10 |
| #39 | Nevada County, CA | 343.4 GWh | 12 |
| #40 | Merced County, CA | 342.8 GWh | 25 |
| #41 | Lassen County, CA | 339.7 GWh | 9 |
| #42 | Santa Barbara County, CA | 339.1 GWh | 18 |
| #43 | San Benito County, CA | 324.4 GWh | 5 |
| #44 | Mariposa County, CA | 250.6 GWh | 2 |
| #45 | Siskiyou County, CA | 234.3 GWh | 8 |
| #46 | Yolo County, CA | 226.6 GWh | 15 |
| #47 | San Mateo County, CA | 125.9 GWh | 10 |
| #48 | San Francisco County, CA | 76.5 GWh | 10 |
| #49 | Tehama County, CA | 71.5 GWh | 7 |
| #50 | Santa Cruz County, CA | 64.7 GWh | 6 |
| #51 | Napa County, CA | 48.3 GWh | 7 |
| #52 | Glenn County, CA | 16.5 GWh | 2 |
| #53 | Mendocino County, CA | 11.1 GWh | 4 |
| #54 | Marin County, CA | 7.4 GWh | 3 |
| #55 | Sierra County, CA | 2.3 GWh | 3 |
Net Generation data is based on the last 12 months since Mar 2025
