Geothermal 1

12000 Ridge Road, Middletown, CA 95461

Plant Summary Information

Geothermal 1 is ranked #22 out of 63 geothermal power plants nationwide in terms of total annual net electricity generation.

Geothermal 1 is comprised of 2 generators and generated 12.3 GWh during the 3-month period between December 2023 to March 2024.

Plant NameGeothermal 1
Utility NameNorthern California Power Agny
LocationSonoma County, CA
Initial Operation DateJanuary 1983
Last Update Mar 2024
Annual Generation 241.4 GWh
Annual Consumption 823.7 k MMBtu
Ranked #2,125 out of 11,249 Power Plants Nationwide
Ranked #22 out of 63 Geothermal Power Plants Nationwide
Ranked #214 out of 1,501 California Power Plants
Ranked #16 out of 30 California Geothermal Power Plants
Fuel Types Geothermal

Map of Geothermal 1

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Monthly Net Generation for Geothermal 1

Geothermal 1 Details

Summary Information
Plant NameGeothermal 1 (7368)
Plant Address12000 Ridge Road Middletown, CA 95461
UtilityNorthern California Power Agny (40613)
Latitude, Longitude38.752, -122.7195
Generation Dates on FileJan 2002 to Mar 2024
Initial Operation DateJanuary 1983
Annual Generation 241.4 GWh
Fuel Types Geothermal
 
Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration StatusNo
FERC Small Power Producer StatusNo
FERC Exempt Wholesale Generator StatusNo
Regulatory Information
Regulatory StatusRegulated
NERC RegionWECC
Balancing AuthorityCalifornia Independent System Operator (CISO)
NAICS CodeUtilities (22)
Sector Electric Utility (1)
Water SourceGeothermal Condensate
Ash Impoundment No
Transmission / Distribution OwnerPacific Gas & Electric Co (14328) CA
Grid Voltage 230.00 kV
Energy StorageNo

Generator 1 Details Operating January 1983

TechnologyGeothermal
Prime MoverSteam Turbine
OwnershipSingle Owner
Nameplate Capacity55 MW
Nameplate Power Factor0.86
Summer Capacity25 MW
Winter Capacity26 MW
Minimum Load10 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateJanuary 1983
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceGeothermal
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load12H
Multiple FuelsNo
Cofire FuelsNo

Generator 2 Details Operating January 1983

TechnologyGeothermal
Prime MoverSteam Turbine
OwnershipSingle Owner
Nameplate Capacity55 MW
Nameplate Power Factor0.86
Summer Capacity26 MW
Winter Capacity27 MW
Minimum Load10 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateJanuary 1983
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceGeothermal
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load12H
Multiple FuelsNo
Cofire FuelsNo

Geothermal 1 Plant Owners

Owner NameAddressGeneratorOwnership
We couldn't locate any owners for this plant

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Geothermal.

RankPlant NamePlant LocationAnnual Generation
#12Tungsten MountainFallon, NV394.9 GWh
#13Salton Sea Power Gen Co - Unit 4Calipatria, CA348.1 GWh
#14Salton Sea Power Gen Co - Unit 3Calipatria, CA326.5 GWh
#15Coso Energy DevelopersInyokern, CA313.0 GWh
#16Salton Sea Power LLC - Unit 5Calipatria, CA305.9 GWh
#17Sonoma California GeothermalMiddletown, CA291.4 GWh
#18Geothermal 2Middletown, CA284.6 GWh
#19BlundellMilford, UT283.5 GWh
#20Vulcan-BN Geothermal Power CompanyCalipatria, CA273.9 GWh
#21Steamboat Hills LPReno, NV252.6 GWh
#23NGP Blue Mountain I LLCWinnemucca, NV233.3 GWh
#24Puna Geothermal Venture IPahoa, HI225.2 GWh
#25North ValleyGerlach, NV220.1 GWh
#26Neal Hot Springs Geothermal ProjectVale, OR195.2 GWh
#27Heber GeothermalHeber, CA174.7 GWh
#28Enel Cove FortCove Fort, UT161.6 GWh
#29Second Imperial GeothermalHeber, CA159.6 GWh
#30Tuscarora Geothermal Power PlantTuscarora, NV144.4 GWh
#31Don A Campbell 1 GeothermalGabbs, NV134.7 GWh
#32CD4Mammoth Lakes, CA132.5 GWh

Nearby Power Plants

Below are closest 20 power plants surrounding Geothermal 1.

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Calistoga Power PlantMiddletown, CA501.4 GWh2.8 mi
Cloverdale Solar CenterCloverdale, CA2.4 GWh16.3 mi
Dissigno Healdsburg FPV, LLCHealdsburg, CA6.5 GWh14 mi
Geothermal 2Middletown, CA284.6 GWh0.5 mi
Geysers Unit 5-20Middletown, CA4.8 TWh2.2 mi
Keysight - Santa RosaSanta Rosa, CA35.6 GWh18.7 mi
Laguna Water Reclamation FacilitySanta Rosa, CA15.0 GWh26.6 mi
Lake MendocinoUkiah, CA2.5 GWh39.7 mi
Lavio SolarPetaluma, CA2.0 GWh38.6 mi
Monticello DamWinters, CA37.0 GWh37.1 mi
Santa Rosa Junior College Petaluma SolarPetaluma, CA17.4 MWh19.6 mi
Sonoma California GeothermalMiddletown, CA291.4 GWh3.3 mi
Sonoma Central Landfill Phase IPetaluma, CA9.9 GWh31.2 mi
Sonoma Central Landfill Phase IIPetaluma, CA10.1 GWh31.2 mi
Stage Gulch SolarPetaluma, CA1.9 GWh38.2 mi
Windsor Floating SolarWindsor, CA2.8 GWh15.6 mi