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 Apr 2026
Annual Generation 177.5 TWh
Power Plants2,075
Utilities965
Ranked #7 out of 65 in terms of net annual generation
Ranked #10 out of 54 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 38.7% Solar | 28.7% Water | 12.1% Wind | 10.2% Nuclear | 10%

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

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List of All California Independent System Operator Power Plants

Displaying Results 1 to 100 of 1,391
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Diablo CanyonPacific Gas & Electric Co.Avila Beach, CA18 TWhApr 1985Jan 2026 Nuclear
Geysers Unit 5-20Geysers Power Co LLCMiddletown, CA4 TWhMar 1971Jan 2026 Geothermal
Delta Energy CenterDelta Energy Center LLCPittsburg, CA4 TWhApr 2002Jan 2026 Natural Gas
Pastoria Energy Facility, LLCCalpine Corp - Pastoria Energy CenterLebec, CA3 TWhApr 2005Jan 2026 Natural Gas
High Desert Power PlantMRP Generation Holdings, LLCVictorville, CA3 TWhMar 2003Jan 2026 Natural Gas
Elk Hills Power LLCElk Hills Power LLCTupman, CA3 TWhJun 2003Jan 2026 Natural Gas
Gateway Generating StationPacific Gas & Electric Co.Antioch, CA3 TWhDec 2008Jan 2026 Natural Gas
Colusa Generating StationPacific Gas & Electric Co.Maxwell, CA2 TWhNov 2010Jan 2026 Natural Gas
Los Medanos Energy CenterLos Medanos Energy Center LLCPittsburg, CA2 TWhJul 2001Jan 2026 Natural Gas
Watson CogenerationARCO Products Co-WatsonCarson, CA2 TWhNov 1987Jan 2026 Natural Gas : 75.9% Other Gas : 23.4% Waste/Other Oil : 0.7%
Metcalf Energy CenterCalpine Corp - Metcalf Energy CenterSan Jose, CA2 TWhMay 2005Jan 2026 Natural Gas
Dynegy Moss Landing Power Plant HybridDynegy -Moss Landing LLCMoss Landing, CA2 TWhNov 1967Jan 2026 Natural Gas
Edward C HyattCalifornia Dept. of Water ResourcesOroville, CA2 TWhFeb 1968Jan 2026 Water
Sunrise Power LLCSunrise Power Co LLCFellows, CA2 TWhMay 2001Jan 2026 Natural Gas
AES Huntington Beach Energy ProjectAES Huntington Beach Energy, LLCHuntington Beach, CA2 TWhJan 2020Jan 2026 Natural Gas
Russell City Energy CenterRussell City Energy Company LLCHayward, CA2 TWhJul 2013Jan 2026 Natural Gas
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CA2 TWhSep 2009Jan 2026 Natural Gas
La Paloma Generating PlantCXA La Paloma LLCMcKittrick, CA2 TWhDec 2002Jan 2026 Natural Gas
AES Alamitos Energy CenterAES Alamitos Energy, LLCLong Beach, CA1 TWhJan 2020Jan 2026 Natural Gas
Palomar EnergySan Diego Gas & Electric CoEscondido, CA1 TWhSep 2005Jan 2026 Natural Gas
ColgateYuba County Water AgencyDobbins, CA1 TWhSep 1969Oct 2025 Water
Crockett Cogen ProjectCrockett CogenerationCrockett, CA1 TWhNov 1995Jan 2026 Natural Gas
Mountainview Generating StationSouthern California Edison CoRedlands, CA1 TWhNov 2005Jan 2026 Natural Gas
El Segundo CogenChevron USA Inc-El SegundoEl Segundo, CA1 TWhNov 1987Jan 2026 Natural Gas : 99.7%
Topaz Solar FarmTopaz Solar Farms LLCSanta Margarita, CA1 TWhMar 2013Jan 2026 Solar
Richmond CogenChevron Products Company-RichmondRichmond, CA975 GWhJul 1992Jan 2026 Natural Gas : 97.5% Other Gas : 2.5%
Solar Star 1Solar Star California XIX, LLCRosamond, CA891 GWhFeb 2014Jan 2026 Solar
Daggett 3Daggett Solar Power 3 LLCDaggett, CA863 GWhJun 2023Jan 2026 Solar
Tracy Combined Cycle Power PlantMRP San Joaquin Energy LLC.Tracy, CA841 GWhMar 2003Jan 2026 Natural Gas
Desert QuartziteDesert Quartzite LLCBlythe, CA826 GWhNov 2024Jan 2026 Solar
Devil CanyonCalifornia Dept. of Water ResourcesSan Bernardino, CA814 GWhNov 1972Jan 2026 Water
Donald Von Raesfeld Power PlantCity of Santa Clara - (CA)Santa Clara, CA778 GWhFeb 2005Jan 2026 Natural Gas
Arica SolarArica Solar, LLCDesert Center, CA777 GWhFeb 2024Jan 2026 Solar
Solano WindSacramento Municipal Util DistRio Vista, CA754 GWhMay 1994Jan 2026 Wind
Big Creek 3Southern California Edison CoAuberry, CA735 GWhAug 1923Jan 2026 Water
Martinez RefiningMartinez Refining CoMartinez, CA726 GWhOct 1995Jan 2026 Natural Gas : 96.7% Other Gas : 3.3%
Solar Star 2Solar Star California XX, LLCRosamond, CA717 GWhFeb 2014Jan 2026 Solar
Slate HybridMN8 Energy LLCStratford, CA713 GWhOct 2021Jan 2026 Solar
Athos Solar ProjectSE Athos I, LLCDesert Center, CA698 GWhMay 2022Jan 2026 Solar
Rexford Solar FarmAES Clean EnergyDucor, CA695 GWh-Jan 2026 Solar
Silver State Solar Power SouthSilver State Solar Power South, LLCPrimm Valley, NV681 GWhOct 2015Jan 2026 Solar
Mount Signal Solar Farm VImperial Valley Solar 3, LLCCalexico, CA675 GWhOct 2018Jan 2026 Solar
Panoche Energy CenterPanoche Energy Center, LLCFirebaugh, CA674 GWhMay 2009Jan 2026 Natural Gas
Desert Sunlight 300, LLCNextEra Energy Desert Sunlight 300, LLCDesert Center, CA667 GWhOct 2013Dec 2024 Solar
AquamarineAquamarine Westside LLCLemoore, CA649 GWhAug 2021Jan 2026 Solar
McCoy Solar Energy Project HybridMcCoy Solar, LLCBlythe, CA647 GWhJul 2015Dec 2024 Solar
Solar BlueWestlands Solar Blue (OZ) Owner, LLCLemoore, CA643 GWhNov 2023Jan 2026 Solar
Arlington Energy Center IIArlington Energy Center IIBlythe, CA634 GWhFeb 2022Jan 2026 Solar
McFarland B Solar and StorageAES Clean EnergyDateland, AZ628 GWhNov 2024Jan 2026 Solar
Stateline SolarSouthern Power CoNipton, CA620 GWhNov 2015Dec 2024 Solar
James B BlackPacific Gas & Electric Co.Big Bend, CA617 GWhNov 1965Jan 2026 Water
Genesis Solar Energy ProjectGenesis Solar LLCBlythe, CA614 GWhOct 2013Jan 2026 Solar
Rock CreekPacific Gas & Electric Co.Storrie, CA607 GWhFeb 1950Jan 2026 Water
Dion R HolmCity & County of San FranciscoGroveland, CA607 GWhJul 1960Jan 2026 Water
California Valley Solar RanchClearway Energy Operating LLCCalifornia Valley, CA598 GWhAug 2012Dec 2024 Solar
Oberon II Solar ProjectIP Oberon II, LLCDesert Center, CA588 GWhAug 2023Jan 2026 Solar
Blythe Mesa Solar IIBlythe Mesa Solar II, LLCBlythe, CA586 GWhNov 2022Jan 2026 Solar
Mojave Solar ProjectMojave Solar LLCHinkley, CA581 GWhNov 2014Jan 2026 Solar
Oberon Solar ProjectIP Oberon LLCDesert Center, CA581 GWhAug 2023Jan 2026 Solar
Blythe Solar 110, LLCBlythe Solar 110, LLCBlythe, CA581 GWhFeb 2016Dec 2024 Solar
Victory PassVictory Pass I, LLCDesert Center, CA572 GWhFeb 2024Jan 2026 Solar
AV Solar Ranch OneAV Solar Ranch 1 LLCLancaster, CA560 GWhJul 2014Jan 2026 Solar
SE Athos II, LLCSE Athos II, LLCDesert Center, CA560 GWhNov 2021Jan 2026 Solar
Desert Sunlight 250, LLCNextEra Energy Desert Sunlight 250, LLCDesert Center, CA556 GWhOct 2013Dec 2024 Solar
Marathon Bay Area CogenTesoro Marketing & Refining Co. LLC (Martinez)Martinez, CA552 GWhJan 1987Jan 2026 Natural Gas
Agua Caliente Solar ProjectAgua Caliente SolarDateland, AZ547 GWhApr 2012Jan 2026 Solar
Manzana Wind LLCAvangrid Power LLCRosamond, CA544 GWhNov 2012Dec 2024 Wind
McFarland A Solar and StorageAES Clean EnergyDateland, AZ540 GWhNov 2023Jan 2026 Solar
Daggett 2Daggett Solar Power 2 LLCDaggett, CA516 GWhNov 2023Jan 2026 Solar
Golden Field Solar III, LLCGolden Fields Solar III, LLCRosamond, CA515 GWhNov 2020Jan 2026 Solar
Mammoth PoolSouthern California Edison CoNorth Fork, CA512 GWhFeb 1960Jan 2026 Water
Pit 5Pacific Gas & Electric Co.Big Bend, CA508 GWhMar 1944Jan 2026 Water
Great Valley Solar Portfolio Holdings, LConsolidated Edison Development Inc.Cantua Creek, CA496 GWhNov 2017Jan 2026 Solar
RE TranquillitySouthern Power CoCantua Creek, CA491 GWhJun 2016Dec 2024 Solar
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CA484 GWhJun 1982Jan 2026 Natural Gas
RE GarlandSouthern Power CoRosamond, CA483 GWhOct 2016Dec 2024 Solar
Scarlet Solar (CA)EDP Renewables North America LLCFresno, CA472 GWhMay 2024Jan 2026 Solar
South Belridge Cogeneration FacilityAERA Energy LLCMcKittrick, CA469 GWhNov 1985Jan 2026 Natural Gas
Kerckhoff 2Pacific Gas & Electric Co.Auberry, CA464 GWhApr 1983Jan 2026 Water
Voyager Wind IITerra-Gen Operating Co-WindMojave, CA462 GWhNov 2018Jan 2026 Wind
ProximaProxima Solar, LLCCrows Landing, CA461 GWhMar 2024Jan 2026 Solar
Calistoga Power PlantGeysers Power Co LLCMiddletown, CA456 GWhFeb 1984Jan 2026 Geothermal
Middle ForkPlacer County Water AgencyForesthill, CA450 GWhSep 1966Jan 2026 Water
Caribou 2Pacific Gas & Electric Co.Belden, CA449 GWhOct 1958Jan 2026 Water
Sonoma California GeothermalGeysers Power Co LLCMiddletown, CA448 GWhNov 1983Dec 2024 Geothermal
White Wing SolarLeeward Asset Management, LLCYuma, AZ447 GWhSep 2024Jan 2026 Solar
Lodi Energy CenterNorthern California Power AgnyLodi, CA446 GWhOct 2012Jan 2026 Natural Gas
Imperial Valley Solar, LLCImperial Valley Solar, LLCCalexico, CA444 GWhOct 2013Dec 2024 Solar
Balch 2Pacific Gas & Electric Co.Balch Camp, CA443 GWhOct 1958Dec 2024 Water
Mesquite Solar 3, LLCConsolidated Edison Development Inc.Tonopah, AZ442 GWhNov 2016Jan 2026 Solar
Dixie ValleyOrmat Nevada IncFallon, NV442 GWhMay 1988Jan 2026 Geothermal
Pit 7Pacific Gas & Electric Co.Montgomery Creek, CA440 GWhAug 1965Jan 2026 Water
North Sky River Energy LLCNorth Sky River Energy LLCWeldon, CA435 GWhNov 2012Dec 2024 Wind
Alta Wind Energy Center IAlta Wind I, LLCMojave, CA435 GWhDec 2010Dec 2024 Wind
R C KirkwoodCity & County of San FranciscoGroveland, CA421 GWhJan 1967Jan 2026 Water
Ocotillo Express LLCPattern Operators LPOcotillo, CA420 GWhNov 2012Jan 2026 Wind
Sun Streams, LLCEDP Renewables North America LLCArlington, AZ411 GWhDec 2019Jan 2026 Solar
Chaparral SpringsLeeward Asset Management, LLCRosamond, CA406 GWh-Jan 2026 Solar
Big Creek 1Southern California Edison CoBig Creek, CA405 GWhOct 1913Dec 2024 Water
Sandrini Solar 200EDPR CA Solar Park LLCMettler, CA403 GWhNov 2024Jan 2026 Solar

Surrounding Balancing Authorities

RankBalancing AuthorityAnnual Net Generation# Power Plants
#26Arizona Public Service Company24.5 TWh92
#54Arlington Valley, LLC3.2 TWh1
#37Balancing Authority of Northern California14.1 TWh87
#48Imperial Irrigation District6.4 TWh66
#29Los Angeles Department of Water and Power18.4 TWh124
#22Nevada Power Company37.0 TWh139
#64New Harquahala Generating Company, LLC32.5 GWh1
#19Salt River Project Agricultural Improvement and Power District60.1 TWh48
#57Turlock Irrigation District2.0 TWh11
#39Western Area Power Administration - Desert Southwest Region10.2 TWh33

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#3Electric Reliability Council of Texas, Inc.488.4 TWh1,313
#5Southwest Power Pool302.6 TWh835
#6Southern Company Services, Inc. - Trans252.1 TWh417
#7California Independent System Operator177.5 TWh2,075
#9Tennessee Valley Authority163.1 TWh204
#10Florida Power & Light Co.151.0 TWh187
#12New York Independent System Operator134.4 TWh1,211
#13Duke Energy Carolinas112.7 TWh565
#15ISO New England110.9 TWh1,577
#16Bonneville Power Administration88.1 TWh163