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 Jan 2026
Annual Generation 184.8 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 | 41.7% Solar | 26.8% Water | 11.8% Wind | 10.6% Nuclear | 9.5%

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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 to 100 of 1,388
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Diablo CanyonPacific Gas & Electric Co.Avila Beach, CA18 TWhApr 1985Oct 2025 Nuclear
Geysers Unit 5-20Geysers Power Co LLCMiddletown, CA4 TWhMar 1971Oct 2025 Geothermal
Pastoria Energy Facility, LLCCalpine Corp - Pastoria Energy CenterLebec, CA4 TWhApr 2005Oct 2025 Natural Gas
High Desert Power PlantMRP Generation Holdings, LLCVictorville, CA3 TWhMar 2003Oct 2025 Natural Gas
Delta Energy CenterDelta Energy Center LLCPittsburg, CA3 TWhApr 2002Oct 2025 Natural Gas
Elk Hills Power LLCElk Hills Power LLCTupman, CA3 TWhJun 2003Oct 2025 Natural Gas
Gateway Generating StationPacific Gas & Electric Co.Antioch, CA3 TWhDec 2008Oct 2025 Natural Gas
Colusa Generating StationPacific Gas & Electric Co.Maxwell, CA3 TWhNov 2010Oct 2025 Natural Gas
Los Medanos Energy CenterLos Medanos Energy Center LLCPittsburg, CA3 TWhJul 2001Oct 2025 Natural Gas
Dynegy Moss Landing Power Plant HybridDynegy -Moss Landing LLCMoss Landing, CA3 TWhNov 1967Oct 2025 Natural Gas
Metcalf Energy CenterCalpine Corp - Metcalf Energy CenterSan Jose, CA3 TWhMay 2005Oct 2025 Natural Gas
Watson CogenerationARCO Products Co-WatsonCarson, CA2 TWhNov 1987Oct 2025 Natural Gas : 79.1% Other Gas : 20.0% Waste/Other Oil : 0.9%
AES Huntington Beach Energy ProjectAES Huntington Beach Energy, LLCHuntington Beach, CA2 TWhJan 2020Oct 2025 Natural Gas
Edward C HyattCalifornia Dept. of Water ResourcesOroville, CA2 TWhFeb 1968Oct 2025 Water
Sunrise Power LLCSunrise Power Co LLCFellows, CA2 TWhMay 2001Oct 2025 Natural Gas
AES Alamitos Energy CenterAES Alamitos Energy, LLCLong Beach, CA2 TWhJan 2020Oct 2025 Natural Gas
La Paloma Generating PlantCXA La Paloma LLCMcKittrick, CA2 TWhDec 2002Oct 2025 Natural Gas
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CA2 TWhSep 2009Oct 2025 Natural Gas
Mountainview Generating StationSouthern California Edison CoRedlands, CA2 TWhNov 2005Oct 2025 Natural Gas
Russell City Energy CenterRussell City Energy Company LLCHayward, CA1 TWhJul 2013Oct 2025 Natural Gas
Palomar EnergySan Diego Gas & Electric CoEscondido, CA1 TWhSep 2005Oct 2025 Natural Gas
ColgateYuba County Water AgencyDobbins, CA1 TWhSep 1969Oct 2025 Water
Crockett Cogen ProjectCrockett CogenerationCrockett, CA1 TWhNov 1995Oct 2025 Natural Gas
El Segundo CogenChevron USA Inc-El SegundoEl Segundo, CA1 TWhNov 1987Oct 2025 Natural Gas : 99.7%
Topaz Solar FarmTopaz Solar Farms LLCSanta Margarita, CA1 TWhMar 2013Oct 2025 Solar
Richmond CogenChevron Products Company-RichmondRichmond, CA970 GWhJul 1992Oct 2025 Natural Gas : 97.3% Other Gas : 2.7%
Tracy Combined Cycle Power PlantMRP San Joaquin Energy LLC.Tracy, CA960 GWhMar 2003Oct 2025 Natural Gas
Solar Star 1Solar Star California XIX, LLCRosamond, CA902 GWhFeb 2014Oct 2025 Solar
Panoche Energy CenterPanoche Energy Center, LLCFirebaugh, CA878 GWhMay 2009Oct 2025 Natural Gas
Daggett 3Daggett Solar Power 3 LLCDaggett, CA876 GWhJun 2023Oct 2025 Solar
Desert QuartziteDesert Quartzite LLCBlythe, CA820 GWhNov 2024Oct 2025 Solar
Solano WindSacramento Municipal Util DistRio Vista, CA793 GWhMay 1994Oct 2025 Wind
Devil CanyonCalifornia Dept. of Water ResourcesSan Bernardino, CA779 GWhNov 1972Oct 2025 Water
Arica SolarArica Solar, LLCDesert Center, CA776 GWhFeb 2024Oct 2025 Solar
Martinez RefiningMartinez Refining CoMartinez, CA759 GWhOct 1995Oct 2025 Natural Gas : 96.5% Other Gas : 3.5%
Slate HybridMN8 Energy LLCStratford, CA747 GWhOct 2021Oct 2025 Solar
Donald Von Raesfeld Power PlantCity of Santa Clara - (CA)Santa Clara, CA737 GWhFeb 2005Oct 2025 Natural Gas
Solar Star 2Solar Star California XX, LLCRosamond, CA722 GWhFeb 2014Oct 2025 Solar
Athos Solar ProjectSE Athos I, LLCDesert Center, CA707 GWhMay 2022Oct 2025 Solar
AquamarineAquamarine Westside LLCLemoore, CA684 GWhAug 2021Oct 2025 Solar
Mount Signal Solar Farm VImperial Valley Solar 3, LLCCalexico, CA675 GWhOct 2018Oct 2025 Solar
Silver State Solar Power SouthSilver State Solar Power South, LLCPrimm Valley, NV673 GWhOct 2015Oct 2025 Solar
Desert Sunlight 300, LLCNextEra Energy Desert Sunlight 300, LLCDesert Center, CA667 GWhOct 2013Dec 2024 Solar
Solar BlueWestlands Solar Blue (OZ) Owner, LLCLemoore, CA667 GWhNov 2023Oct 2025 Solar
McCoy Solar Energy Project HybridMcCoy Solar, LLCBlythe, CA647 GWhJul 2015Dec 2024 Solar
Arlington Energy Center IIArlington Energy Center IIBlythe, CA637 GWhFeb 2022Oct 2025 Solar
Lodi Energy CenterNorthern California Power AgnyLodi, CA625 GWhOct 2012Oct 2025 Natural Gas
Genesis Solar Energy ProjectGenesis Solar LLCBlythe, CA625 GWhOct 2013Oct 2025 Solar
Pit 5Pacific Gas & Electric Co.Big Bend, CA620 GWhMar 1944Oct 2025 Water
Stateline SolarSouthern Power CoNipton, CA620 GWhNov 2015Dec 2024 Solar
Rexford Solar FarmAES Clean EnergyDucor, CA617 GWh-Oct 2025 Solar
Rock CreekPacific Gas & Electric Co.Storrie, CA612 GWhFeb 1950Oct 2025 Water
Victory PassVictory Pass I, LLCDesert Center, CA610 GWhFeb 2024Oct 2025 Solar
James B BlackPacific Gas & Electric Co.Big Bend, CA606 GWhNov 1965Oct 2025 Water
Big Creek 3Southern California Edison CoAuberry, CA606 GWhAug 1923Oct 2025 Water
Marathon Bay Area CogenTesoro Marketing & Refining Co. LLC (Martinez)Martinez, CA604 GWhJan 1987Oct 2025 Natural Gas
Oberon II Solar ProjectIP Oberon II, LLCDesert Center, CA599 GWhAug 2023Oct 2025 Solar
California Valley Solar RanchClearway Energy Operating LLCCalifornia Valley, CA598 GWhAug 2012Dec 2024 Solar
Mojave Solar ProjectMojave Solar LLCHinkley, CA591 GWhNov 2014Oct 2025 Solar
Blythe Mesa Solar IIBlythe Mesa Solar II, LLCBlythe, CA586 GWhNov 2022Oct 2025 Solar
Oberon Solar ProjectIP Oberon LLCDesert Center, CA585 GWhAug 2023Oct 2025 Solar
Blythe Solar 110, LLCBlythe Solar 110, LLCBlythe, CA581 GWhFeb 2016Dec 2024 Solar
AV Solar Ranch OneAV Solar Ranch 1 LLCLancaster, CA572 GWhJul 2014Oct 2025 Solar
SE Athos II, LLCSE Athos II, LLCDesert Center, CA569 GWhNov 2021Oct 2025 Solar
Desert Sunlight 250, LLCNextEra Energy Desert Sunlight 250, LLCDesert Center, CA556 GWhOct 2013Dec 2024 Solar
Agua Caliente Solar ProjectAgua Caliente SolarDateland, AZ544 GWhApr 2012Oct 2025 Solar
Manzana Wind LLCAvangrid Power LLCRosamond, CA544 GWhNov 2012Dec 2024 Wind
McFarland A Solar and StorageAES Clean EnergyDateland, AZ532 GWhNov 2023Oct 2025 Solar
Golden Field Solar III, LLCGolden Fields Solar III, LLCRosamond, CA529 GWhNov 2020Oct 2025 Solar
Daggett 2Daggett Solar Power 2 LLCDaggett, CA526 GWhNov 2023Oct 2025 Solar
McFarland B Solar and StorageAES Clean EnergyDateland, AZ524 GWhNov 2024Oct 2025 Solar : 99.9%
Great Valley Solar Portfolio Holdings, LConsolidated Edison Development Inc.Cantua Creek, CA522 GWhNov 2017Oct 2025 Solar
Scarlet Solar (CA)EDP Renewables North America LLCFresno, CA500 GWhMay 2024Oct 2025 Solar
Voyager Wind IITerra-Gen Operating Co-WindMojave, CA496 GWhNov 2018Oct 2025 Wind
RE TranquillitySouthern Power CoCantua Creek, CA491 GWhJun 2016Dec 2024 Solar
RE GarlandSouthern Power CoRosamond, CA483 GWhOct 2016Dec 2024 Solar
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CA476 GWhJun 1982Oct 2025 Natural Gas
Desert Star Energy CenterDesert Star Energy Center SDG&EBoulder City, NV472 GWhApr 2000Oct 2025 Natural Gas
ProximaProxima Solar, LLCCrows Landing, CA469 GWhMar 2024Oct 2025 Solar
South Belridge Cogeneration FacilityAERA Energy LLCMcKittrick, CA469 GWhNov 1985Oct 2025 Natural Gas
Dion R HolmCity & County of San FranciscoGroveland, CA466 GWhJul 1960Oct 2025 Water
White Wing SolarLeeward Asset Management, LLCYuma, AZ460 GWhSep 2024Oct 2025 Solar
Calistoga Power PlantGeysers Power Co LLCMiddletown, CA456 GWhFeb 1984Oct 2025 Geothermal
Ocotillo Express LLCPattern Operators LPOcotillo, CA451 GWhNov 2012Oct 2025 Wind
Pit 7Pacific Gas & Electric Co.Montgomery Creek, CA448 GWhAug 1965Oct 2025 Water
Sonoma California GeothermalGeysers Power Co LLCMiddletown, CA448 GWhNov 1983Dec 2024 Geothermal
Mesquite Solar 3, LLCConsolidated Edison Development Inc.Tonopah, AZ447 GWhNov 2016Oct 2025 Solar
Imperial Valley Solar, LLCImperial Valley Solar, LLCCalexico, CA444 GWhOct 2013Dec 2024 Solar
Balch 2Pacific Gas & Electric Co.Balch Camp, CA443 GWhOct 1958Dec 2024 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
Chaparral SpringsLeeward Asset Management, LLCRosamond, CA424 GWh-Oct 2025 Solar
Sandrini Solar 200EDPR CA Solar Park LLCMettler, CA424 GWhNov 2024Oct 2025 Solar
Wright Solar ParkWright Solar Park LLCLos Banos, CA411 GWhNov 2019Oct 2025 Solar
Mustang TwoRE Mustang Two LLCLemoore, CA408 GWhOct 2020Oct 2025 Solar
Voyager Wind ITerra-Gen Operating Co-WindMojave, CA406 GWhNov 2019Oct 2025 Wind
Big Creek 1Southern California Edison CoBig Creek, CA405 GWhOct 1913Dec 2024 Water
Mammoth PoolSouthern California Edison CoNorth Fork, CA405 GWhFeb 1960Oct 2025 Water
Pit 4Pacific Gas & Electric Co.Big Bend, CA405 GWhJun 1955Oct 2025 Water
Mount Signal Solar Farm IIMN8 Energy LLCCalexico, CA404 GWhDec 2019Oct 2025 Solar

Surrounding Balancing Authorities

RankBalancing AuthorityAnnual Net Generation# Power Plants
#26Arizona Public Service Company24.0 TWh92
#54Arlington Valley, LLC3.3 TWh1
#36Balancing Authority of Northern California14.7 TWh87
#47Imperial Irrigation District6.4 TWh66
#29Los Angeles Department of Water and Power18.6 TWh124
#22Nevada Power Company37.3 TWh139
#64New Harquahala Generating Company, LLC132.0 GWh1
#19Salt River Project Agricultural Improvement and Power District60.1 TWh48
#57Turlock Irrigation District2.0 TWh11
#39Western Area Power Administration - Desert Southwest Region9.8 TWh33

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#3Electric Reliability Council of Texas, Inc.484.7 TWh1,313
#5Southwest Power Pool300.6 TWh835
#6Southern Company Services, Inc. - Trans249.9 TWh417
#7California Independent System Operator184.8 TWh2,075
#9Tennessee Valley Authority161.0 TWh204
#10Florida Power & Light Co.149.6 TWh187
#12New York Independent System Operator132.6 TWh1,211
#13Duke Energy Carolinas111.6 TWh565
#15ISO New England107.8 TWh1,577
#16Bonneville Power Administration83.7 TWh163