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 May 2025
Annual Generation 190.1 TWh
Power Plants1,943
Utilities893
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 | 43.8% Solar | 24.9% Water | 11.4% Wind | 10.7% Nuclear | 9.7%

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

1M1M800k800k600k600k400k400k200k200k00Jul '22Jul '2220232023Jul '23Jul '2320242024Jul '24Jul '2420252025
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List of All California Independent System Operator Power Plants

Displaying Results 201 to 300 of 1,285
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Estrella Solar & StorageAES Clean EnergyLancaster, CA113 GWhNov 2023Mar 2025 Solar
Lockhart Solar PV IITerra-Gen Operating Co-SolarHinkley, CA194 GWhJun 2023Mar 2025 Solar
Sandrini Solar 100EDPR CA Solar Park II LLCMettler, CA92 GWh-Mar 2025 Solar
Raceway Solar & StorageAES Clean EnergyLancaster, CA329 GWh-Mar 2025 Solar
Edwards Sanborn E1BTerra-Gen Operating Co-HybridMojave, CA349 GWhOct 2022Mar 2025 Solar
West Ford FlatWest Ford Flat Energy StorageMiddletown, CA1 GWh-Mar 2025 Electricity used for energy storage
McFarland B Solar and StorageAES Clean EnergyDateland, AZ63 GWh-Mar 2025 Solar
Middle ForkPlacer County Water AgencyForesthill, CA458 GWhSep 1966Mar 2025 Water
Diablo CanyonPacific Gas & Electric Co.Avila Beach, CA18 TWhApr 1985Mar 2025 Nuclear
Edwards Sanborn E4Terra-Gen Operating Co-HybridMojave, CA305 GWhNov 2022Mar 2025 Solar
McFarland A Solar and StorageAES Clean EnergyDateland, AZ489 GWhNov 2023Mar 2025 Solar
Dynegy Oakland Power PlantDynegy Oakland, LLCOakland, CA2 GWhOct 1978Mar 2025 Jet Fuel
Pebbly Beach Generating Station HybridSouthern California Edison CoAvalon, CA29 GWhJun 1958Mar 2025 Distillate Fuel Oil : 94.6% Gaseous Propane : 5.4%
Pit 4Pacific Gas & Electric Co.Big Bend, CA388 GWhJun 1955Mar 2025 Water
Baldy Mesa 2_Silver Peak HybridAES Clean EnergyAdelanto, CA7 GWh-Mar 2025 Solar
Pit 5Pacific Gas & Electric Co.Big Bend, CA472 GWhMar 1944Mar 2025 Water
Lockhart ESS, LLCTerra-Gen Operating Co-SolarHinkley, CA23 GWh-Mar 2025 Electricity used for energy storage
Caribou 2Pacific Gas & Electric Co.Belden, CA358 GWhOct 1958Mar 2025 Water
Scarlet II HybridEDPR Scarlet II LLCCantua Creek, CA81 GWh-Mar 2025 Solar
Edwards Sanborn E5Terra-Gen Operating Co-HybridMojave, CA133 GWhNov 2022Mar 2025 Solar
Edwards Sanborn S4Terra-Gen Operating Co-HybridMojave, CA77 GWhOct 2022Mar 2025 Solar
Pit 7Pacific Gas & Electric Co.Montgomery Creek, CA319 GWhAug 1965Mar 2025 Water
Oberon Solar ProjectIP Oberon LLCDesert Center, CA545 GWhAug 2023Mar 2025 Solar
Oberon II Solar ProjectIP Oberon II, LLCDesert Center, CA593 GWhAug 2023Mar 2025 Solar
Geothermal 1Northern California Power AgnyMiddletown, CA389 GWhDec 1982Mar 2025 Geothermal
Geothermal 2Northern California Power AgnyMiddletown, CA303 GWhNov 1985Mar 2025 Geothermal
Victory PassVictory Pass I, LLCDesert Center, CA575 GWh-Mar 2025 Solar
Arica SolarArica Solar, LLCDesert Center, CA659 GWh-Mar 2025 Solar
PoePacific Gas & Electric Co.Storrie, CA315 GWhSep 1958Mar 2025 Water
Rock CreekPacific Gas & Electric Co.Storrie, CA609 GWhFeb 1950Mar 2025 Water
Resurgence Solar IIResurgence Solar IIBoron, CA134 GWhJul 2023Mar 2025 Solar
Solano WindSacramento Municipal Util DistRio Vista, CA697 GWhMay 1994Mar 2025 Wind
Baldy Mesa Solar & StorageAES Clean EnergyAdelanto, CA76 GWh-Mar 2025 Solar : 99.8%
Geysers Unit 5-20Geysers Power Co LLCMiddletown, CA4 TWhMar 1971Mar 2025 Geothermal
R C KirkwoodCity & County of San FranciscoGroveland, CA417 GWhJan 1967Mar 2025 Water
Pine FlatKings River Conservation DistPiedra, CA449 GWhDec 1983Mar 2025 Water
Dion R HolmCity & County of San FranciscoGroveland, CA497 GWhJul 1960Mar 2025 Water
Encina Water Pollution ControlEncina Joint Powers AuthorityCarlsbad, CA14 GWhOct 2008Mar 2025 Other Biomass Gas : 96.0% Natural Gas : 4.0%
Kaweah Delta District HospitalKaweah Delta HospitalVisalia, CA21 GWhSep 2008Mar 2025 Natural Gas
Ocotillo WellsConductive PowerBorrego Springs, CA113 GWhAug 2023Mar 2025 Solar
Mountainview Generating StationSouthern California Edison CoRedlands, CA2 TWhNov 2005Mar 2025 Natural Gas
Mesquite Solar 4, LLCConsolidated Edison Development Inc.Tonopah, AZ151 GWh-Mar 2025 Solar : 99.9%
PaulsellCrow Creek Solar, LLCCrows Landing, CA31 GWh-Mar 2025 Solar
Childrens HospitalDTE San Diego COGEN Inc.San Diego, CA26 GWhMar 2000Mar 2025 Natural Gas
Loma Linda University CogenLoma Linda UniversityLoma Linda, CA62 GWhJan 1980Mar 2025 Natural Gas
El Segundo CogenChevron USA Inc-El SegundoEl Segundo, CA1 TWhNov 1987Mar 2025 Natural Gas : 99.6%
California Institute of TechnologyCalifornia Institute-TechnologyPasadena, CA59 GWhJul 2003Mar 2025 Natural Gas
Big Creek Water WorksBig Creek Water Works LtdHyampom, CA12 GWhDec 1986Mar 2025 Water
King City Power PlantCalpine King City Cogen LLCKing City, CA42 GWhJan 1989Mar 2025 Natural Gas
Ormond BeachOrmond Beach Power, LLCOxnard, CA45 GWhJul 1971Mar 2025 Natural Gas
LucianaTulare Solar Center, LLCRichgrove, CA129 GWhMar 2022Mar 2025 Solar
E F Oxnard Energy FacilityEF Oxnard, LLCOxnard, CA9 GWhMay 1990Mar 2025 Natural Gas
Edwards Sanborn S3Terra-Gen Operating Co-HybridMojave, CA81 GWhFeb 2022Mar 2025 Solar
Greenleaf 2 Power PlantGreenleaf Energy LLCYuba City, CA33 GWhSep 1989Mar 2025 Natural Gas
Edwards Sanborn S1Terra-Gen Operating Co-HybridMojave, CA93 GWhFeb 2022Mar 2025 Solar
BigBeau Solar, LLCBig Beau Solar, LLCRosamond, CA353 GWhJan 2022Mar 2025 Solar
Blythe Mesa Solar IIBlythe Mesa Solar II, LLCBlythe, CA572 GWhNov 2022Mar 2025 Solar
Big Creek 2ASouthern California Edison CoAuberry, CA326 GWhJul 1928Mar 2025 Water
Argus Cogen PlantSearles Valley Minerals Operations Inc.Trona, CA256 GWhNov 1947Mar 2025 Bituminous Coal : 94.3% Natural Gas : 5.7%
Bear Mountain LimitedWCAC Operating CompanyBakersfield, CA29 GWhMar 1995Mar 2025 Natural Gas
Big Creek 4Southern California Edison CoNorth Fork, CA357 GWhMay 1951Mar 2025 Water
Big Creek 3Southern California Edison CoAuberry, CA587 GWhAug 1923Mar 2025 Water
ProximaProxima Solar, LLCCrows Landing, CA355 GWh-Mar 2025 Solar
San Jose CogenerationSan Jose State University Fclts Dev &OpsSan Jose, CA34 GWhNov 1984Mar 2025 Natural Gas
New-Indy Ontario MillNew-Indy Ontario LLCOntario, CA246 GWhMay 1985Mar 2025 Natural Gas
Mammoth PoolSouthern California Edison CoNorth Fork, CA394 GWhFeb 1960Mar 2025 Water
Puente Hills Energy RecoveryLos Angeles County SanitationWhittier, CA158 GWhSep 1986Mar 2025 Landfill Gas
Mesa Wind RepowerMesa Wind RepowerWhitewater, CA83 GWh-Mar 2025 Wind
Lockhart Solar PV, LLCTerra-Gen Operating Co-SolarHinkley, CA228 GWhNov 1989Mar 2025 Solar
AM Wind Repower LLCBrookfield Renewable Trading and Marketing LPWhitewater, CA11 GWh-Mar 2025 Wind
Marathon Bay Area CogenTesoro Marketing & Refining Co. LLC (Martinez)Martinez, CA699 GWhJan 1987Feb 2025 Natural Gas
Miramar Energy FacilitySan Diego Gas & Electric CoSan Diego, CA12 GWhMay 2005Feb 2025 Natural Gas
Henrietta PeakerMRP San Joaquin Energy LLC.Lemoore, CA10 GWhMay 2002Feb 2025 Natural Gas
Badger Creek LimitedWCAC Operating CompanyBakersfield, CA13 GWhMar 1991Feb 2025 Natural Gas
Hanford Energy Park PeakerMRP San Joaquin Energy LLC.Hanford, CA6 GWhAug 2001Feb 2025 Natural Gas
Sycamore CogenerationSycamore Cogeneration CoBakersfield, CA273 GWhNov 1987Feb 2025 Natural Gas
Los Medanos Energy CenterLos Medanos Energy Center LLCPittsburg, CA3 TWhJul 2001Feb 2025 Natural Gas
AltaGas Ripon Energy Inc.AltaGas Ripon Energy Inc.Ripon, CA3 GWhMar 1988Feb 2025 Natural Gas
CCCSD Wastewater Treatment PlntCentral Contra Costa Sanitary DistrictMartinez, CA18 GWhNov 1995Feb 2025 Natural Gas
Kern River CogenerationKern River Cogeneration CoBakersfield, CA238 GWhJun 1985Jan 2025 Natural Gas
Sunrise Power LLCSunrise Power Co LLCFellows, CA2 TWhMay 2001Jan 2025 Natural Gas
Algonquin Power Sanger LLCAlgonquin Power Sanger LLCSanger, CA10 GWhNov 2007Jan 2025 Natural Gas
Q PlantQualcomm IncorporatedSan Diego, CA55 MWhJun 2013Dec 2024 Natural Gas
Covanta Stanislaus EnergyCovanta Stanislaus IncCrows Landing, CA62 GWhAug 1988Dec 2024 Non-biogenic Municipal Solid Waste : 50.0% Biogenic Municipal Solid Waste : 40.9% Distillate Fuel Oil : 9.1%
BeldenPacific Gas & Electric Co.Belden, CA365 GWhAug 1969Nov 2024 Water
AES Alamitos LLCAES Alamitos LLCLong Beach, CA127 GWhAug 1956Oct 2024 Natural Gas
CSUCI Site AuthorityCSUCI Site AuthorityCamarillo, CA3 GWhFeb 1988Sep 2024 Natural Gas
AES Huntington Beach LLCAES Huntington Beach LLCHuntington Beach, CA76 GWhMay 1958Sep 2024 Natural Gas
SEGS IXTerra-Gen Operating Co-SolarHinkley, CA112 GWhAug 1990Sep 2024 Solar
Phillips 66 Rodeo RefineryPhillips 66 CompanyRodeo, CA291 GWhApr 1987Aug 2024 Other Gas : 72.8% Natural Gas : 27.2%
P PlantQualcomm IncorporatedSan Diego, CA30 GWhFeb 2007Jul 2024 Natural Gas
Southeast Resource RecoverySERRF Joint Powers AuthorityLong Beach, CA90 GWhJun 1988Mar 2024 Non-biogenic Municipal Solid Waste : 51.7% Biogenic Municipal Solid Waste : 42.3% Natural Gas : 6.1%
Ramona Solar EnergySan Diego Gas & Electric CoRamona, CA3 GWhMar 2017Dec 2023 Solar
Whitney Point SolarWhitney Point Solar, LLCFive Points, CA50 GWhFeb 2017Dec 2023 Solar
Central Antelope Dry Ranch B LLCCentral Antelope Dry Ranch B, LLCLancaster, CA7 GWhAug 2017Dec 2023 Solar
Antelope Big Sky RanchAES Distributed EnergyLancaster, CA46 GWhJul 2016Dec 2023 Solar
Summer Solar LLCAES Distributed EnergyLancaster, CA41 GWhJun 2016Dec 2023 Solar
Merced 1 PVZGlobal IncLos Banos, CA7 GWhMar 2018Dec 2023 Solar
Verwey-Hanford Dairy Digester #1AlsoEnergyHanford, CA360 MWhSep 2016Dec 2023 Other Biomass Gas
Madera 1 PVZGlobal IncMadera, CA3 GWhNov 2017Dec 2023 Solar

Surrounding Balancing Authorities

RankBalancing AuthorityAnnual Net Generation# Power Plants
#26Arizona Public Service Company22.9 TWh75
#55Arlington Valley, LLC3.4 TWh1
#35Balancing Authority of Northern California15.1 TWh83
#48Imperial Irrigation District5.9 TWh65
#32Los Angeles Department of Water and Power17.6 TWh120
#22Nevada Power Company38.3 TWh136
#54New Harquahala Generating Company, LLC3.5 TWh1
#18Salt River Project Agricultural Improvement and Power District58.7 TWh45
#58Turlock Irrigation District2.1 TWh11
#44Western Area Power Administration - Desert Southwest Region8.2 TWh30

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#3Electric Reliability Council of Texas, Inc.476.0 TWh1,139
#5Southwest Power Pool297.0 TWh762
#6Southern Company Services, Inc. - Trans251.8 TWh393
#7California Independent System Operator190.1 TWh1,943
#8Tennessee Valley Authority158.8 TWh170
#10Florida Power & Light Co.148.3 TWh159
#12New York Independent System Operator130.6 TWh1,100
#13Duke Energy Carolinas111.4 TWh556
#15ISO New England103.2 TWh1,487
#16Bonneville Power Administration82.2 TWh158