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 2025
Annual Generation 189.5 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 | 43.4% Solar | 24.7% Water | 11.7% Wind | 11% 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 1 to 100 of 1,366
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Diablo CanyonPacific Gas & Electric Co.Avila Beach, CA18 TWhApr 1985Feb 2025 Nuclear
High Desert Power PlantMRP Generation Holdings, LLCVictorville, CA5 TWhMar 2003Jan 2025 Natural Gas
Geysers Unit 5-20Geysers Power Co LLCMiddletown, CA4 TWhMar 1971Feb 2025 Geothermal
Pastoria Energy Facility, LLCCalpine Corp - Pastoria Energy CenterLebec, CA4 TWhApr 2005Feb 2025 Natural Gas
Dynegy Moss Landing Power Plant HybridDynegy -Moss Landing LLCMoss Landing, CA3 TWhNov 1967Feb 2025 Natural Gas
Los Medanos Energy CenterLos Medanos Energy Center LLCPittsburg, CA3 TWhJul 2001Feb 2025 Natural Gas
Delta Energy CenterDelta Energy Center LLCPittsburg, CA3 TWhApr 2002Feb 2025 Natural Gas
Gateway Generating StationPacific Gas & Electric Co.Antioch, CA3 TWhDec 2008Feb 2025 Natural Gas
Colusa Generating StationPacific Gas & Electric Co.Maxwell, CA3 TWhNov 2010Feb 2025 Natural Gas
Metcalf Energy CenterCalpine Corp - Metcalf Energy CenterSan Jose, CA2 TWhMay 2005Feb 2025 Natural Gas
Elk Hills Power LLCElk Hills Power LLCTupman, CA2 TWhJun 2003Feb 2025 Natural Gas
Edward C HyattCalifornia Dept. of Water ResourcesOroville, CA2 TWhFeb 1968Feb 2025 Water
Watson CogenerationARCO Products Co-WatsonCarson, CA2 TWhNov 1987Feb 2025 Natural Gas : 84.2% Other Gas : 15.5%
Sunrise Power LLCSunrise Power Co LLCFellows, CA2 TWhMay 2001Jan 2025 Natural Gas
AES Alamitos Energy CenterAES Alamitos Energy, LLCLong Beach, CA2 TWhJan 2020Feb 2025 Natural Gas
AES Huntington Beach Energy ProjectAES Huntington Beach Energy, LLCHuntington Beach, CA2 TWhJan 2020Feb 2025 Natural Gas
Mountainview Generating StationSouthern California Edison CoRedlands, CA2 TWhNov 2005Feb 2025 Natural Gas
La Paloma Generating PlantCXA La Paloma LLCMcKittrick, CA2 TWhDec 2002Feb 2025 Natural Gas
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CA2 TWhSep 2009Feb 2025 Natural Gas
Russell City Energy CenterRussell City Energy Company LLCHayward, CA2 TWhJul 2013Feb 2025 Natural Gas
ColgateYuba County Water AgencyDobbins, CA1 TWhSep 1969Feb 2025 Water
Panoche Energy CenterPanoche Energy Center, LLCFirebaugh, CA1 TWhMay 2009Feb 2025 Natural Gas
Crockett Cogen ProjectCrockett CogenerationCrockett, CA1 TWhNov 1995Feb 2025 Natural Gas
El Segundo CogenChevron USA Inc-El SegundoEl Segundo, CA1 TWhNov 1987Feb 2025 Natural Gas : 99.7%
Topaz Solar FarmTopaz Solar Farms LLCSanta Margarita, CA1 TWhMar 2013Feb 2025 Solar
Palomar EnergySan Diego Gas & Electric CoEscondido, CA979 GWhSep 2005Feb 2025 Natural Gas
Richmond CogenChevron Products Company-RichmondRichmond, CA957 GWhJul 1992Feb 2025 Natural Gas : 97.1% Other Gas : 2.9%
Tracy Combined Cycle Power PlantMRP San Joaquin Energy LLC.Tracy, CA911 GWhMar 2003Feb 2025 Natural Gas
Daggett 3Daggett Solar Power 3 LLCDaggett, CA887 GWhJun 2023Feb 2025 Solar
Solar Star 1Solar Star California XIX, LLCRosamond, CA886 GWhFeb 2014Feb 2025 Solar
Donald Von Raesfeld Power PlantCity of Santa Clara - (CA)Santa Clara, CA880 GWhFeb 2005Feb 2025 Natural Gas
Martinez RefiningMartinez Refining CoMartinez, CA787 GWhOct 1995Feb 2025 Natural Gas : 96.2% Other Gas : 3.8%
Lodi Energy CenterNorthern California Power AgnyLodi, CA764 GWhOct 2012Feb 2025 Natural Gas
Desert Star Energy CenterDesert Star Energy Center SDG&EBoulder City, NV762 GWhApr 2000Feb 2025 Natural Gas
Devil CanyonCalifornia Dept. of Water ResourcesSan Bernardino, CA750 GWhNov 1972Feb 2025 Water
Solar Star 2Solar Star California XX, LLCRosamond, CA725 GWhFeb 2014Feb 2025 Solar
Marathon Bay Area CogenTesoro Marketing & Refining Co. LLC (Martinez)Martinez, CA699 GWhJan 1987Feb 2025 Natural Gas
Slate HybridMN8 Energy LLCStratford, CA682 GWhOct 2021Feb 2025 Solar
Solano WindSacramento Municipal Util DistRio Vista, CA679 GWhMay 1994Feb 2025 Wind
Desert Sunlight 300, LLCNextEra Energy Desert Sunlight 300, LLCDesert Center, CA659 GWhOct 2013Dec 2023 Solar
Solar BlueWestlands Solar Blue (OZ) Owner, LLCLemoore, CA646 GWhNov 2023Feb 2025 Solar : 95.7%
Genesis Solar Energy ProjectGenesis Solar LLCBlythe, CA645 GWhOct 2013Feb 2025 Solar
Silver State Solar Power SouthSilver State Solar Power South, LLCPrimm Valley, NV643 GWhOct 2015Feb 2025 Solar
Arica SolarArica Solar, LLCDesert Center, CA642 GWh-Feb 2025 Solar
Arlington Energy Center IIArlington Energy Center IIBlythe, CA641 GWhFeb 2022Feb 2025 Solar
Athos Solar ProjectSE Athos I, LLCDesert Center, CA631 GWhMay 2022Feb 2025 Solar
Mojave Solar ProjectMojave Solar LLCHinkley, CA626 GWhNov 2014Feb 2025 Solar
Agua Caliente Solar ProjectAgua Caliente SolarDateland, AZ626 GWhApr 2012Feb 2025 Solar
California Valley Solar RanchClearway Energy Operating LLCCalifornia Valley, CA624 GWhAug 2012Dec 2023 Solar
Stateline SolarSouthern Power CoNipton, CA619 GWhNov 2015Dec 2023 Solar
Mount Signal Solar Farm VImperial Valley Solar 3, LLCCalexico, CA618 GWhOct 2018Feb 2025 Solar
Rock CreekPacific Gas & Electric Co.Storrie, CA617 GWhFeb 1950Feb 2025 Water
Big Creek 3Southern California Edison CoAuberry, CA593 GWhAug 1923Feb 2025 Water
PoePacific Gas & Electric Co.Storrie, CA591 GWhSep 1958Oct 2024 Water
Oberon II Solar ProjectIP Oberon II, LLCDesert Center, CA585 GWhAug 2023Feb 2025 Solar
Blythe Solar 110, LLCBlythe Solar 110, LLCBlythe, CA584 GWhFeb 2016Dec 2023 Solar
Blythe Energy IncAltaGas Blythe Operations IncBlythe, CA581 GWhNov 2003Feb 2025 Natural Gas
AV Solar Ranch OneAV Solar Ranch 1 LLCLancaster, CA574 GWhJul 2014Feb 2025 Solar
Blythe Mesa Solar IIBlythe Mesa Solar II, LLCBlythe, CA563 GWhNov 2022Feb 2025 Solar
Victory PassVictory Pass I, LLCDesert Center, CA555 GWh-Feb 2025 Solar
Oberon Solar ProjectIP Oberon LLCDesert Center, CA547 GWhAug 2023Feb 2025 Solar
Desert Sunlight 250, LLCNextEra Energy Desert Sunlight 250, LLCDesert Center, CA544 GWhOct 2013Dec 2023 Solar
Daggett 2Daggett Solar Power 2 LLCDaggett, CA539 GWhNov 2023Feb 2025 Solar
Golden Field Solar III, LLCGolden Field Solar III, LLCRosamond, CA538 GWhNov 2020Feb 2025 Solar
Great Valley Solar Portfolio Holdings, LLCConsolidated Edison Development Inc.Cantua Creek, CA536 GWhNov 2017Feb 2025 Solar
Collierville PowerhouseNorthern California Power AgnyMurphys, CA533 GWhOct 1989Feb 2025 Water
McCoy Solar Energy Project HybridMcCoy Solar, LLCBlythe, CA525 GWhJul 2015Dec 2023 Solar
Ocotillo Express LLCPattern Operators LPOcotillo, CA520 GWhNov 2012Feb 2025 Wind
SE Athos II, LLCSE Athos II, LLCDesert Center, CA503 GWhNov 2021Feb 2025 Solar
Voyager Wind IITerra-Gen Operating Co-WindMojave, CA502 GWhNov 2018Feb 2025 Wind
Dion R HolmCity & County of San FranciscoGroveland, CA496 GWhJul 1960Feb 2025 Water
Centinela Solar EnergyArevon Energy, Inc.Calexico, CA492 GWhJun 2013Dec 2023 Solar
Balch 2Pacific Gas & Electric Co.Balch Camp, CA490 GWhOct 1958Dec 2023 Water
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CA487 GWhJun 1982Feb 2025 Natural Gas
Pine FlatKings River Conservation DistPiedra, CA485 GWhDec 1983Sep 2024 Water
South Belridge Cogeneration FacilityAERA Energy LLCMcKittrick, CA477 GWhNov 1985Feb 2025 Natural Gas
AquamarineAquamarine Westside LLCLemoore, CA469 GWhAug 2021Feb 2025 Solar
Manzana Wind LLCAvangrid Renewables LLCRosamond, CA468 GWhNov 2012Dec 2023 Wind
Calistoga Power PlantGeysers Power Co LLCMiddletown, CA467 GWhFeb 1984Feb 2025 Geothermal
McFarland A Solar and StorageAES Clean EnergyDateland, AZ462 GWhNov 2023Feb 2025 Solar
RalstonPlacer County Water AgencyForesthill, CA460 GWhSep 1966Dec 2023 Water
Mesquite Solar 3, LLCConsolidated Edison Development Inc.Tonopah, AZ459 GWhNov 2016Feb 2025 Solar
RE TranquillitySouthern Power CoCantua Creek, CA450 GWhJun 2016Dec 2023 Solar
Chaparral SpringsLeeward Asset Management, LLCRosamond, CA446 GWh-Feb 2025 Solar
Pit 5Pacific Gas & Electric Co.Big Bend, CA445 GWhMar 1944Feb 2025 Water
Middle ForkPlacer County Water AgencyForesthill, CA439 GWhSep 1966Feb 2025 Water
HaasPacific Gas & Electric Co.Balch Camp, CA439 GWhNov 1958Feb 2025 Water
Shiloh Wind Project 2 LLCEDF Renewable Asset Holdings, Inc.Birds Landing, CA432 GWhDec 2008Dec 2023 Wind
Sonoma California GeothermalGeysers Power Co LLCMiddletown, CA432 GWhNov 1983Dec 2023 Geothermal
R C KirkwoodCity & County of San FranciscoGroveland, CA430 GWhJan 1967Feb 2025 Water
Kerckhoff 2Pacific Gas & Electric Co.Auberry, CA420 GWhApr 1983Feb 2025 Water
Shiloh I Wind ProjectAvangrid Renewables LLCRio Vista, CA418 GWhApr 2006Dec 2023 Wind
Sun Streams, LLCEDP Renewables North America LLCArlington, AZ412 GWhDec 2019Feb 2025 Solar
Mount Signal Solar Farm IIMN8 Energy LLCCalexico, CA410 GWhDec 2019Feb 2025 Solar
Mesquite Solar 1Consolidated Edison Development Inc.Tonopah, AZ404 GWhOct 2011Dec 2023 Solar
North Rosamond Solar LLCNorth Rosamond Solar, LLCRosamond, CA398 GWhMay 2019Feb 2025 Solar
Mustang TwoRE Mustang Two LLCLemoore, CA397 GWhOct 2020Feb 2025 Solar
Big Creek 1Southern California Edison CoBig Creek, CA394 GWhOct 1913Dec 2023 Water
Voyager Wind ITerra-Gen Operating Co-WindMojave, CA393 GWhNov 2019Feb 2025 Wind
Imperial Solar Energy Center WestCSOLAR IV West LLCSeeley, CA388 GWhMar 2016Dec 2023 Solar

Surrounding Balancing Authorities

RankBalancing AuthorityAnnual Net Generation# Power Plants
#27Arizona Public Service Company22.6 TWh75
#55Arlington Valley, LLC3.3 TWh1
#36Balancing Authority of Northern California15.0 TWh83
#48Imperial Irrigation District5.7 TWh65
#33Los Angeles Department of Water and Power17.3 TWh120
#22Nevada Power Company38.0 TWh136
#54New Harquahala Generating Company, LLC3.6 TWh1
#18Salt River Project Agricultural Improvement and Power District58.6 TWh45
#58Turlock Irrigation District2.0 TWh11
#41Western Area Power Administration - Desert Southwest Region8.4 TWh30

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#3Electric Reliability Council of Texas, Inc.474.6 TWh1,139
#5Southwest Power Pool296.4 TWh762
#6Southern Company Services, Inc. - Trans252.8 TWh393
#7California Independent System Operator189.5 TWh1,943
#8Tennessee Valley Authority158.9 TWh170
#10Florida Power & Light Co.148.5 TWh159
#12New York Independent System Operator131.1 TWh1,100
#13Duke Energy Carolinas111.3 TWh556
#15ISO New England103.6 TWh1,487
#16Bonneville Power Administration82.9 TWh158