2. Balancing Authorities
  3. California Independent System Operator

California Independent System Operator

Balancing Authority Summary Information

California Independent System Operator is ranked #7 out of 65 balancing authorities in terms of total annual electricity generation.

Balancing AuthorityCalifornia Independent System Operator
States Arizona California Nevada
Last Update Nov 2025
Annual Generation 188.0 TWh
Power Plants2,075
Utilities965
Ranked #7 out of 65 in terms of net annual generation
Ranked #7 out of 53 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 43.1% Solar | 26.4% Water | 11.1% Wind | 10.6% Nuclear | 9.4%

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Daily Net Generation for California Independent System Operator for the past 3 Years

List of All California Independent System Operator Power Plants

Displaying Results 1,001 to 1,100 of 1,387
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
THUMSTHUMS Long Beach CompanyLong Beach, CA207 GWhDec 2002Sep 2025 Natural Gas
Valero Refinery Cogeneration Unit 1Valero Refining Co CaliforniaBenicia, CA275 GWhSep 2002Sep 2025 Natural Gas : 87.7% Other Gas : 12.3%
Cabazon Wind PartnersShell Wind Energy Inc.Cabazon, CA97 GWhSep 2002Dec 2024 Wind
Whitewater Hill Wind PartnersShell Wind Energy Inc.North Palm Springs, CA128 GWhSep 2002Dec 2024 Wind
Kern Oil & Refining CoKern Oil & Refining CoBakersfield, CA34 GWhSep 2002Sep 2025 Natural Gas
San Diego State UniversitySan Diego State UniversitySan Diego, CA52 GWhAug 2002Sep 2025 Natural Gas : 97.6% Solar : 2.4%
Yuba City Energy CenterCalpine Corp-Yuba CityYuba City, CA39 GWhJul 2002Dec 2024 Natural Gas
Springs Generating StationCity of Riverside - (CA)Riverside, CA825 MWhJun 2002Dec 2024 Natural Gas
CalPeak Power Vaca Dixon Peaker PlantCalPeak Power, LLCVacaville, CA4 GWhMay 2002Dec 2024 Natural Gas
Henrietta PeakerMRP San Joaquin Energy LLC.Lemoore, CA9 GWhMay 2002Sep 2025 Natural Gas
SF Southeast Cogen PlantCity & County of San FranciscoSan Francisco, CA4 GWhMay 2002Dec 2024 Other Biomass Gas
Delta Energy CenterDelta Energy Center LLCPittsburg, CA3 TWhApr 2002Sep 2025 Natural Gas
Cuyamaca Peak Energy PlantSan Diego Gas & Electric CoEl Cajon, CA6 GWhApr 2002Dec 2024 Natural Gas
King City PeakingCalpine Corp-King CityKing City, CA12 GWhMar 2002Dec 2024 Natural Gas
City of Palo AltoCity of Palo AltoPalo Alta, CA21 MWhFeb 2002Dec 2023 Natural Gas
Irwindale Brew Yard, LLCIrwindale Brew Yard, LLCIrwindale, CA517 MWhJan 2002Apr 2025 Solar : 99.8%
CalPeak Power Panoche Peaker PlantCalPeak Power, LLCFirebaugh, CA10 GWhNov 2001Dec 2024 Natural Gas
Border Hybrid Energy CenterCalPeak Power, LLCSan Diego, CA15 GWhOct 2001Dec 2024 Natural Gas
CalPeak Power Enterprise Peaker PlantCalPeak Power, LLCEscondido, CA6 GWhOct 2001Dec 2024 Natural Gas
Gilroy Peaking Energy CenterCalpine Gilroy Cogen LPGilroy, CA23 GWhOct 2001Dec 2024 Natural Gas
Watkins Manufacturing Co.Watkins Manufacturing CorporationSan Diego, CA7 GWhOct 2001Sep 2025 Natural Gas
Hanford Energy Park PeakerMRP San Joaquin Energy LLC.Hanford, CA6 GWhAug 2001Sep 2025 Natural Gas
Century Generating FacilityColton Power LPColton, CA952 MWhAug 2001Dec 2024 Natural Gas
Santa Rita Jail HybridCounty of Alameda GSADublin, CA13 GWhAug 2001Dec 2023 Natural Gas : 80.9% Solar : 19.1%
Los Medanos Energy CenterLos Medanos Energy Center LLCPittsburg, CA3 TWhJul 2001Sep 2025 Natural Gas
Drews Generating FacilityColton Power LPColton, CA1 GWhJul 2001Dec 2024 Natural Gas
Red BluffCalifornia Power Holdings LLCRed Bluff, CA10 GWhJul 2001Dec 2024 Natural Gas
Indigo Energy FacilityDiamond Generating CorporationNorth Palm Springs, CA25 GWhJun 2001Dec 2024 Natural Gas
Larkspur Energy FacilityDiamond Generating CorporationSan Diego, CA24 GWhJun 2001Dec 2024 Natural Gas
University of California San Diego HybriUniversity of California San DiegoLa Jolla, CA205 GWhJun 2001Sep 2025 Natural Gas
Sunrise Power LLCSunrise Power Co LLCFellows, CA2 TWhMay 2001Sep 2025 Natural Gas
Mountain View I & IIAES Distributed EnergyNorth Palm Springs, CA285 GWhMay 2001Sep 2025 Wind
Chowchilla IICalifornia Power Holdings LLCChowchilla, CA16 GWhMay 2001Dec 2024 Natural Gas
Diamond Valley LakeMetropolitan Water District of S CAWinchester, CA5 GWhApr 2001Apr 2024 Water
Saint Agnes Medical CenterSaint Agnes Medical CenterFresno, CA33 GWhApr 2001Sep 2025 Natural Gas
Chula Vista Energy CenterWellhead Services, IncChula Vista, CA2 GWhApr 2001Nov 2024 Natural Gas
Sierra Pacific SonoraSierra Pacific IndustriesStandard, CA35 GWhJan 2001Dec 2024 Wood/Wood Waste Solids
Regional Wastewater Control FacilityCity of Stockton MUDStockton, CA3 GWhOct 2000Dec 2024 Other Biomass Gas : 97.7% Natural Gas : 2.3%
Blacksand Generating FacilityBridge Energy LLCBrea, CA39 GWhMay 2000Dec 2024 Natural Gas
Desert Star Energy CenterDesert Star Energy Center SDG&EBoulder City, NV546 GWhApr 2000Sep 2025 Natural Gas
Childrens HospitalDTE San Diego COGEN Inc.San Diego, CA25 GWhMar 2000Sep 2025 Natural Gas
San Gorgonio Westwinds II LLCTerra-Gen Operating Co-WindNorth Palm Springs, CA124 GWhMay 1999Dec 2024 Wind
Phoenix Wind Power LLCAvangrid Power LLCNorth Palm Springs, CA3 GWhMay 1999Dec 2024 Wind
Salka Cabazon WindSalka Cabazon Wind LLCNorth Palm Springs, CA8 GWhDec 1998Dec 2024 Wind
MM Lopez EnergyMM Lopez Energy LLCLake View Terrace, CA25 GWhNov 1998Dec 2024 Landfill Gas
MM Tulare EnergyMM Tulare Energy LLCVisalia, CA10 GWhApr 1998Dec 2023 Landfill Gas
Marina Landfill GasMonterey Regional Waste MgmtMarina, CA23 GWhMar 1998Dec 2024 Landfill Gas
Sunnyvale City of WPCPSunnyvale City of WPCPSunnyvale, CA9 GWhOct 1997Dec 2024 Natural Gas : 48.8% Other Biomass Gas : 28.3% Landfill Gas : 22.9%
MM San Diego-MiramarMM San Diego Energy-MiramarSan Diego, CA46 GWhJun 1997Dec 2024 Landfill Gas : 91.9% Other Biomass Gas : 8.1%
Tehachapi Wind Resource IICalWind Resources IncTehachapi, CA46 GWhDec 1996Dec 2024 Wind
Mojave SiphonCalifornia Dept. of Water ResourcesHesperia, CA46 GWhJul 1996Dec 2024 Water
Sonoma Central Landfill Phase IICounty of Sonoma Dept of TrnspPetaluma, CA5 GWhMay 1996Dec 2024 Landfill Gas
Combustion Turbine Project No 2Northern California Power AgnyLodi, CA10 GWhMar 1996Oct 2024 Natural Gas
Parnassus Central Utility PlantUniversity of California-San FranciscoSan Francisco, CA68 GWhDec 1995Sep 2025 Natural Gas
Crockett Cogen ProjectCrockett CogenerationCrockett, CA1 TWhNov 1995Sep 2025 Natural Gas
CCCSD Wastewater Treatment PlntCentral Contra Costa Sanitary DistrictMartinez, CA17 GWhNov 1995Sep 2025 Natural Gas
Martinez RefiningMartinez Refining CoMartinez, CA790 GWhOct 1995Sep 2025 Natural Gas : 96.4% Other Gas : 3.6%
Bear Mountain LimitedWCAC Operating CompanyBakersfield, CA33 GWhMar 1995Sep 2025 Natural Gas
EtiwandaMetropolitan Water District of S CARancho Cucamonga, CA21 GWhNov 1994Mar 2024 Water
Elk Hills CogenCalifornia Resources Elk Hills LLCTupman, CA29 GWhOct 1994Sep 2025 Natural Gas
Goal Line LPGoal Line LPEscondido, CA8 GWhJul 1994Sep 2025 Natural Gas
Solano WindSacramento Municipal Util DistRio Vista, CA802 GWhMay 1994Sep 2025 Wind
RidgetopTerra-Gen Operating Co-WindMojave, CA146 GWhMar 1994Dec 2024 Wind
Springville HydroelectricCalleguas Mun Water DistrictCamarillo, CA98 MWhFeb 1994Dec 2024 Water
Deadwood CreekHydro Sierra Energy, LLCDobbins, CA3 GWhNov 1993May 2024 Water
GrizzlyCity of Santa Clara - (CA)N/A, CA30 GWhOct 1993Dec 2024 Water
J.R. Simplot CompanyJ.R. Simplot CompanyLathrop, CA9 GWhSep 1993Dec 2023 Waste Heat
Sonoma Central Landfill Phase ICounty of Sonoma Dept of TrnspPetaluma, CA6 GWhJun 1993Dec 2024 Landfill Gas
Plant No 1 Orange CountyOrange County Sanitation DistFountain Valley, CA40 GWhMay 1993Dec 2024 Other Biomass Gas : 80.1% Natural Gas : 19.9%
Plant No 2 Orange CountyOrange County Sanitation DistHuntington Beach, CA59 GWhMay 1993Dec 2024 Other Biomass Gas : 73.7% Natural Gas : 26.0%
MM West CovinaMM West Covina Energy LLCWest Covina, CA31 GWhMay 1993Dec 2024 Landfill Gas : 99.8%
Coram TehachapiNextera Energy ResourcesTehachapi, CA4 GWhAug 1992Dec 2023 Wind
Richmond CogenChevron Products Company-RichmondRichmond, CA970 GWhJul 1992Sep 2025 Natural Gas : 97.2% Other Gas : 2.8%
Forks of Butte Hydro ProjectHypower Energy, LLCMagalia, CA66 GWhFeb 1992Dec 2024 Water
Live Oak LimitedWCAC Operating CompanyBakersfield, CA21 GWhFeb 1992Sep 2025 Natural Gas
Salinas River CogenerationSalinas River Cogeneration CoSan Ardo, CA258 GWhOct 1991Sep 2025 Natural Gas
McKittrick LimitedWCAC Operating CompanyBakersfield, CA6 GWhSep 1991Sep 2025 Natural Gas
Badger Creek LimitedWCAC Operating CompanyBakersfield, CA6 GWhMar 1991Sep 2025 Natural Gas
Sky River Wind Energy CenterSky River Wind LLCTehachapi, CA245 GWhJan 1991Dec 2024 Wind
City of Tulare Water FacilityCity of Tulare Water Pollution ControlTulare, CA21 GWhDec 1990Dec 2024 Natural Gas : 62.5% Other Biomass Gas : 21.5% Solar : 16.0%
Isabella Hydro ProjectIsabella PartnersLake Isabella, CA43 GWhNov 1990Dec 2024 Water
Kingsburg CogenKES Kingsburg LPKingsburg, CA11 GWhNov 1990Nov 2024 Natural Gas
Mammoth G3Ormat Nevada IncMammoth Lakes, CA103 GWhNov 1990Dec 2024 Geothermal
Mammoth G2Ormat Nevada IncMammoth Lakes, CA82 GWhNov 1990Dec 2024 Geothermal
Mojave 3/4/5Terra-Gen Operating Co-WindMojave, CA133 GWhNov 1990Dec 2024 Wind
Yuba City Cogen PartnersWellhead Services, IncYuba City, CA23 GWhNov 1990Dec 2024 Natural Gas
Agnews Power PlantOLS Energy-Agnews Inc.San Jose, CA10 GWhOct 1990Dec 2024 Natural Gas
MM Yolo PowerYolo County Community Services DepartmentWoodland, CA17 GWhSep 1990Dec 2024 Landfill Gas
SEGS IXTerra-Gen Operating Co-SolarHinkley, CA112 GWhAug 1990Sep 2024 Solar
Kings River SyphonOrange Cove Irrigation DistrictSanger, CA325 MWhAug 1990May 2024 Water
E F Oxnard Energy FacilityEF Oxnard, LLCOxnard, CA4 GWhMay 1990Sep 2025 Natural Gas
Biola University HybridBiola UniversityLa Mirada, CA13 GWhMar 1990Sep 2025 Natural Gas
Burney CreekSnow Mountain Hydro LLCBurney, CA9 GWhFeb 1990Dec 2024 Water
Ponderosa Bailey CreekSnow Mountain Hydro LLCManton, CA3 GWhFeb 1990Dec 2024 Water
Chalk Cliff LimitedWCAC Operating CompanyBakersfield, CA4 GWhFeb 1990Sep 2025 Natural Gas
Berry Placerita CogenShadow Wolf EnergySanta Clarita, CA2 GWhFeb 1990Sep 2025 Natural Gas
Terminus Hydroelectric ProjectEagle Creek Renewable Energy, LLCLemon Cove, CA42 GWhFeb 1990Jun 2024 Water
Western Power & Steam IncWestern Power and Steam II LLCBakersfield, CA25 GWhFeb 1990Sep 2025 Natural Gas
Welport Lease ProjectSentinel Peak Resources California, LLCMcKittrick, CA35 GWhFeb 1990Dec 2024 Natural Gas
Cove HydroelectricSnow Mountain Hydro LLCBurney, CA18 GWhJan 1990Dec 2024 Water

Surrounding Balancing Authorities

RankBalancing AuthorityAnnual Net Generation# Power Plants
#26Arizona Public Service Company23.9 TWh92
#54Arlington Valley, LLC3.4 TWh1
#36Balancing Authority of Northern California14.7 TWh87
#47Imperial Irrigation District6.3 TWh66
#29Los Angeles Department of Water and Power18.9 TWh124
#22Nevada Power Company37.2 TWh139
#60New Harquahala Generating Company, LLC764.0 GWh1
#19Salt River Project Agricultural Improvement and Power District60.0 TWh48
#56Turlock Irrigation District2.1 TWh11
#39Western Area Power Administration - Desert Southwest Region9.8 TWh33

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#4Electric Reliability Council of Texas, Inc.485.0 TWh1,313
#5Southwest Power Pool299.9 TWh835
#6Southern Company Services, Inc. - Trans250.9 TWh417
#7California Independent System Operator188.0 TWh2,075
#9Tennessee Valley Authority161.6 TWh204
#10Florida Power & Light Co.148.9 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.5 TWh565
#15ISO New England105.5 TWh1,577
#16Bonneville Power Administration80.5 TWh163