Power Plants in Sonoma County, California

Sonoma County, California has 23 power plants totaling 1,444 MW of nameplate capacity. Browse every plant below with fuel type, operator, and capacity.

Plants23operating sites
Capacity1,443 MWnameplate
Generation5.2M MWhannual
CO₂227.7kmetric tons/year
Geothermal 98%

Plant locations

All plants in this county

PlantCityFuelCapacityOperator
Geysers Unit 5-20MiddletownGeothermal1,163 MWGeysers Power Co Llc
Geothermal 1MiddletownGeothermal110 MWNorthern California Power Agny
Geothermal 2MiddletownGeothermal110 MWNorthern California Power Agny
Aidlin Geothermal Power PlantMiddletownGeothermal25.0 MWGeysers Power Co Llc
Keysight - Santa RosaSanta RosaNatural Gas4.5 MWBloom Energy
Laguna Water Reclamation FacilitySanta RosaBiomass4.4 MWCity Of Santa Rosa
Sonoma Central Landfill Phase IPetalumaBiomass3.2 MWCounty Of Sonoma Dept Of Trnsp
Sonoma Central Landfill Phase IiPetalumaBiomass3.2 MWCounty Of Sonoma Dept Of Trnsp
Dissigno Healdsburg Fpv, LlcHealdsburgSolar3.0 MWPalmetto Power Management Llc
Warm Springs Hydro ProjectGeyservilleHydroelectric2.7 MWSonoma County Water Agency
Bodega Avenue Solar LlcPetalumaSolar2.0 MWBodega Avenue Solar Llc
Sonoma Central Landfill Phase IiiPetalumaBiomass1.6 MWCounty Of Sonoma Dept Of Trnsp
Cloverdale Solar ICloverdaleSolar1.5 MWAltus Power America Management, Llc
Windsor Floating SolarWindsorSolar1.5 MWCa Odevi Llc
BeringerSaint HelenaSolar1.4 MWPerpetual Energy Systems
Sutter Santa Rosa SolarSanta RosaSolar1.3 MWSutter Santa Rosa Solar Llc
AstiCloverdaleSolar1.2 MWPerpetual Energy Systems
Santa Rosa Junior College Petaluma SolarPetalumaSolar1.2 MWSonoma County Junior College District
Cloverdale Solar CenterCloverdaleSolar1.0 MWAdapture Renewables, Inc.
Stage Gulch SolarPetalumaSolar1.0 MWStage Gulch Solar, Llc
Lavio SolarPetalumaSolar1.0 MWLavio Solar, Llc
Wild Horse Power PlantMiddletownGeothermal— MWCalpine Corporation
Ellis Creek SolarPetalumaSolar— MWEllis Creek Solar, Llc

About power generation in Sonoma County

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.