Sonoma County, California has 23 power plants totaling 1,444 MW of nameplate capacity. Browse every plant below with fuel type, operator, and capacity.
| Plant | City | Fuel | Capacity | Operator |
|---|---|---|---|---|
| Geysers Unit 5-20 | Middletown | Geothermal | 1,163 MW | Geysers Power Co Llc |
| Geothermal 1 | Middletown | Geothermal | 110 MW | Northern California Power Agny |
| Geothermal 2 | Middletown | Geothermal | 110 MW | Northern California Power Agny |
| Aidlin Geothermal Power Plant | Middletown | Geothermal | 25.0 MW | Geysers Power Co Llc |
| Keysight - Santa Rosa | Santa Rosa | Natural Gas | 4.5 MW | Bloom Energy |
| Laguna Water Reclamation Facility | Santa Rosa | Biomass | 4.4 MW | City Of Santa Rosa |
| Sonoma Central Landfill Phase I | Petaluma | Biomass | 3.2 MW | County Of Sonoma Dept Of Trnsp |
| Sonoma Central Landfill Phase Ii | Petaluma | Biomass | 3.2 MW | County Of Sonoma Dept Of Trnsp |
| Dissigno Healdsburg Fpv, Llc | Healdsburg | Solar | 3.0 MW | Palmetto Power Management Llc |
| Warm Springs Hydro Project | Geyserville | Hydroelectric | 2.7 MW | Sonoma County Water Agency |
| Bodega Avenue Solar Llc | Petaluma | Solar | 2.0 MW | Bodega Avenue Solar Llc |
| Sonoma Central Landfill Phase Iii | Petaluma | Biomass | 1.6 MW | County Of Sonoma Dept Of Trnsp |
| Cloverdale Solar I | Cloverdale | Solar | 1.5 MW | Altus Power America Management, Llc |
| Windsor Floating Solar | Windsor | Solar | 1.5 MW | Ca Odevi Llc |
| Beringer | Saint Helena | Solar | 1.4 MW | Perpetual Energy Systems |
| Sutter Santa Rosa Solar | Santa Rosa | Solar | 1.3 MW | Sutter Santa Rosa Solar Llc |
| Asti | Cloverdale | Solar | 1.2 MW | Perpetual Energy Systems |
| Santa Rosa Junior College Petaluma Solar | Petaluma | Solar | 1.2 MW | Sonoma County Junior College District |
| Cloverdale Solar Center | Cloverdale | Solar | 1.0 MW | Adapture Renewables, Inc. |
| Stage Gulch Solar | Petaluma | Solar | 1.0 MW | Stage Gulch Solar, Llc |
| Lavio Solar | Petaluma | Solar | 1.0 MW | Lavio Solar, Llc |
| Wild Horse Power Plant | Middletown | Geothermal | — MW | Calpine Corporation |
| Ellis Creek Solar | Petaluma | Solar | — MW | Ellis Creek Solar, Llc |
Sonoma County, California has 23 power plants totaling 1,444 MW of nameplate capacity. Geothermal is the dominant fuel source at 98% of installed capacity, followed by Solar (1%) and Biomass (1%). The largest facility is Geysers Unit 5-20 at 1,163 MW. Data comes from EIA Form 860, EIA Form 923, and EPA eGRID federal releases.
To find plants closer to a specific address in Sonoma County, use the address lookup — it shows every plant within a chosen radius along with distance, fuel type, and emissions.