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 2026
Annual Generation 173.9 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 | 36.7% Solar | 29.1% Water | 12.1% Nuclear | 10.7% Wind | 10.7%

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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 1,389
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Diablo CanyonPacific Gas & Electric Co.Avila Beach, CA17 TWhApr 1985Mar 2026 Nuclear
Geysers Unit 5-20Geysers Power Co LLCMiddletown, CA4 TWhMar 1971Mar 2026 Geothermal
Delta Energy CenterDelta Energy Center LLCPittsburg, CA4 TWhApr 2002Mar 2026 Natural Gas
Pastoria Energy Facility, LLCCalpine Corp - Pastoria Energy CenterLebec, CA4 TWhApr 2005Mar 2026 Natural Gas
High Desert Power PlantMRP Generation Holdings, LLCVictorville, CA3 TWhMar 2003Mar 2026 Natural Gas
Elk Hills Power LLCElk Hills Power LLCTupman, CA3 TWhJun 2003Mar 2026 Natural Gas
Gateway Generating StationPacific Gas & Electric Co.Antioch, CA3 TWhDec 2008Mar 2026 Natural Gas
Los Medanos Energy CenterLos Medanos Energy Center LLCPittsburg, CA3 TWhJul 2001Mar 2026 Natural Gas
Watson CogenerationARCO Products Co-WatsonCarson, CA2 TWhNov 1987Mar 2026 Natural Gas : 76.7% Other Gas : 22.6% Waste/Other Oil : 0.7%
Sunrise Power LLCSunrise Power Co LLCFellows, CA2 TWhMay 2001Feb 2026 Natural Gas
Colusa Generating StationPacific Gas & Electric Co.Maxwell, CA2 TWhNov 2010Mar 2026 Natural Gas
Dynegy Moss Landing Power Plant HybridDynegy -Moss Landing LLCMoss Landing, CA2 TWhNov 1967Mar 2026 Natural Gas
Metcalf Energy CenterCalpine Corp - Metcalf Energy CenterSan Jose, CA2 TWhMay 2005Mar 2026 Natural Gas
Edward C HyattCalifornia Dept. of Water ResourcesOroville, CA2 TWhFeb 1968Mar 2026 Water
AES Huntington Beach Energy ProjectAES Huntington Beach Energy, LLCHuntington Beach, CA2 TWhJan 2020Mar 2026 Natural Gas
Russell City Energy CenterRussell City Energy Company LLCHayward, CA2 TWhJul 2013Mar 2026 Natural Gas
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CA1 TWhSep 2009Mar 2026 Natural Gas
La Paloma Generating PlantCXA La Paloma LLCMcKittrick, CA1 TWhDec 2002Mar 2026 Natural Gas
ColgateYuba County Water AgencyDobbins, CA1 TWhSep 1969Oct 2025 Water
Palomar EnergySan Diego Gas & Electric CoEscondido, CA1 TWhSep 2005Feb 2026 Natural Gas
Crockett Cogen ProjectCrockett CogenerationCrockett, CA1 TWhNov 1995Feb 2026 Natural Gas
El Segundo CogenChevron USA Inc-El SegundoEl Segundo, CA1 TWhNov 1987Mar 2026 Natural Gas : 99.8%
AES Alamitos Energy CenterAES Alamitos Energy, LLCLong Beach, CA1 TWhJan 2020Mar 2026 Natural Gas
Mountainview Generating StationSouthern California Edison CoRedlands, CA1 TWhNov 2005Mar 2026 Natural Gas
Topaz Solar FarmTopaz Solar Farms LLCSanta Margarita, CA1 TWhMar 2013Mar 2026 Solar
Richmond CogenChevron Products Company-RichmondRichmond, CA982 GWhJul 1992Mar 2026 Natural Gas : 97.8% Other Gas : 2.2%
Solar Star 1Solar Star California XIX, LLCRosamond, CA893 GWhFeb 2014Mar 2026 Solar
Devil CanyonCalifornia Dept. of Water ResourcesSan Bernardino, CA876 GWhNov 1972Mar 2026 Water
Daggett 3Daggett Solar Power 3 LLCDaggett, CA869 GWhJun 2023Mar 2026 Solar
Desert QuartziteDesert Quartzite LLCBlythe, CA851 GWhNov 2024Mar 2026 Solar
Donald Von Raesfeld Power PlantCity of Santa Clara - (CA)Santa Clara, CA814 GWhFeb 2005Mar 2026 Natural Gas
Arica SolarArica Solar, LLCDesert Center, CA790 GWhFeb 2024Mar 2026 Solar
Big Creek 3Southern California Edison CoAuberry, CA785 GWhAug 1923Mar 2026 Water
Tracy Combined Cycle Power PlantMRP San Joaquin Energy LLC.Tracy, CA766 GWhMar 2003Mar 2026 Natural Gas
Solano WindSacramento Municipal Util DistRio Vista, CA741 GWhMay 1994Mar 2026 Wind
Slate HybridMN8 Energy LLCStratford, CA727 GWhOct 2021Mar 2026 Solar
Solar Star 2Solar Star California XX, LLCRosamond, CA724 GWhFeb 2014Mar 2026 Solar
Rexford Solar FarmAES Clean EnergyDucor, CA717 GWh-Mar 2026 Solar
Athos Solar ProjectSE Athos I, LLCDesert Center, CA713 GWhMay 2022Mar 2026 Solar
McFarland B Solar and StorageAES Clean EnergyDateland, AZ710 GWhNov 2024Mar 2026 Solar
Martinez RefiningMartinez Refining CoMartinez, CA690 GWhOct 1995Mar 2026 Natural Gas : 96.7% Other Gas : 3.3%
Silver State Solar Power SouthSilver State Solar Power South, LLCPrimm Valley, NV672 GWhOct 2015Mar 2026 Solar
Panoche Energy CenterPanoche Energy Center, LLCFirebaugh, CA671 GWhMay 2009Mar 2026 Natural Gas
Mount Signal Solar Farm VImperial Valley Solar 3, LLCCalexico, CA670 GWhOct 2018Mar 2026 Solar
Desert Sunlight 300, LLCNextEra Energy Desert Sunlight 300, LLCDesert Center, CA667 GWhOct 2013Dec 2024 Solar
AquamarineAquamarine Westside LLCLemoore, CA664 GWhAug 2021Mar 2026 Solar
Solar BlueWestlands Solar Blue (OZ) Owner, LLCLemoore, CA651 GWhNov 2023Mar 2026 Solar
McCoy Solar Energy Project HybridMcCoy Solar, LLCBlythe, CA647 GWhJul 2015Dec 2024 Solar
Arlington Energy Center IIArlington Energy Center IIBlythe, CA644 GWhFeb 2022Mar 2026 Solar
Stateline SolarSouthern Power CoNipton, CA620 GWhNov 2015Dec 2024 Solar
Oberon Solar ProjectIP Oberon LLCDesert Center, CA605 GWhAug 2023Mar 2026 Solar
Blythe Mesa Solar IIBlythe Mesa Solar II, LLCBlythe, CA604 GWhNov 2022Mar 2026 Solar
Genesis Solar Energy ProjectGenesis Solar LLCBlythe, CA604 GWhOct 2013Mar 2026 Solar
Dion R HolmCity & County of San FranciscoGroveland, CA601 GWhJul 1960Mar 2026 Water
Oberon II Solar ProjectIP Oberon II, LLCDesert Center, CA601 GWhAug 2023Mar 2026 Solar
California Valley Solar RanchClearway Energy Operating LLCCalifornia Valley, CA598 GWhAug 2012Dec 2024 Solar
Marathon Bay Area CogenTesoro Marketing & Refining Co. LLC (Martinez)Martinez, CA597 GWhJan 1987Mar 2026 Natural Gas
Mojave Solar ProjectMojave Solar LLCHinkley, CA594 GWhNov 2014Mar 2026 Solar
James B BlackPacific Gas & Electric Co.Big Bend, CA582 GWhNov 1965Mar 2026 Water
Mammoth PoolSouthern California Edison CoNorth Fork, CA581 GWhFeb 1960Mar 2026 Water
Blythe Solar 110, LLCBlythe Solar 110, LLCBlythe, CA581 GWhFeb 2016Dec 2024 Solar
SE Athos II, LLCSE Athos II, LLCDesert Center, CA567 GWhNov 2021Mar 2026 Solar
Agua Caliente Solar ProjectAgua Caliente SolarDateland, AZ566 GWhApr 2012Mar 2026 Solar
Victory PassVictory Pass I, LLCDesert Center, CA565 GWhFeb 2024Mar 2026 Solar
AV Solar Ranch OneAV Solar Ranch 1 LLCLancaster, CA564 GWhJul 2014Mar 2026 Solar
Rock CreekPacific Gas & Electric Co.Storrie, CA559 GWhFeb 1950Mar 2026 Water
Desert Sunlight 250, LLCNextEra Energy Desert Sunlight 250, LLCDesert Center, CA556 GWhOct 2013Dec 2024 Solar
McFarland A Solar and StorageAES Clean EnergyDateland, AZ553 GWhNov 2023Mar 2026 Solar
Manzana Wind LLCAvangrid Power LLCRosamond, CA544 GWhNov 2012Dec 2024 Wind
Golden Field Solar III, LLCGolden Fields Solar III, LLCRosamond, CA539 GWhNov 2020Mar 2026 Solar : 99.4%
Daggett 2Daggett Solar Power 2 LLCDaggett, CA523 GWhNov 2023Mar 2026 Solar
Great Valley Solar Portfolio Holdings, LConsolidated Edison Development Inc.Cantua Creek, CA495 GWhNov 2017Mar 2026 Solar
RE TranquillitySouthern Power CoCantua Creek, CA491 GWhJun 2016Dec 2024 Solar
R C KirkwoodCity & County of San FranciscoGroveland, CA490 GWhJan 1967Mar 2026 Water
Caribou 2Pacific Gas & Electric Co.Belden, CA485 GWhOct 1958Mar 2026 Water
RE GarlandSouthern Power CoRosamond, CA483 GWhOct 2016Dec 2024 Solar
Kerckhoff 2Pacific Gas & Electric Co.Auberry, CA475 GWhApr 1983Mar 2026 Water
Scarlet Solar (CA)EDP Renewables North America LLCFresno, CA474 GWhMay 2024Mar 2026 Solar
South Belridge Cogeneration FacilityAERA Energy LLCMcKittrick, CA472 GWhNov 1985Mar 2026 Natural Gas
ProximaProxima Solar, LLCCrows Landing, CA471 GWhMar 2024Mar 2026 Solar
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CA470 GWhJun 1982Mar 2026 Natural Gas
Calistoga Power PlantGeysers Power Co LLCMiddletown, CA466 GWhFeb 1984Mar 2026 Geothermal
Pit 5Pacific Gas & Electric Co.Big Bend, CA456 GWhMar 1944Feb 2026 Water
Dixie ValleyOrmat Nevada IncFallon, NV455 GWhMay 1988Mar 2026 Geothermal
Voyager Wind IITerra-Gen Operating Co-WindMojave, CA452 GWhNov 2018Mar 2026 Wind
Sonoma California GeothermalGeysers Power Co LLCMiddletown, CA448 GWhNov 1983Dec 2024 Geothermal
Mesquite Solar 3, LLCConsolidated Edison Development Inc.Tonopah, AZ445 GWhNov 2016Mar 2026 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
White Wing SolarLeeward Asset Management, LLCYuma, AZ443 GWhSep 2024Mar 2026 Solar
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
Sandrini Solar 200EDPR CA Solar Park LLCMettler, CA432 GWhNov 2024Mar 2026 Solar
Sun Streams, LLCEDP Renewables North America LLCArlington, AZ413 GWhDec 2019Mar 2026 Solar
Middle ForkPlacer County Water AgencyForesthill, CA411 GWhSep 1966Mar 2026 Water
Wright Solar ParkWright Solar Park LLCLos Banos, CA410 GWhNov 2019Mar 2026 Solar
Big Creek 4Southern California Edison CoNorth Fork, CA409 GWhMay 1951Mar 2026 Water
Collierville PowerhouseNorthern California Power AgnyMurphys, CA407 GWhOct 1989Mar 2026 Water
Big Creek 1Southern California Edison CoBig Creek, CA405 GWhOct 1913Dec 2024 Water
Pit 7Pacific Gas & Electric Co.Montgomery Creek, CA405 GWhAug 1965Mar 2026 Water

Surrounding Balancing Authorities

RankBalancing AuthorityAnnual Net Generation# Power Plants
#26Arizona Public Service Company24.8 TWh92
#54Arlington Valley, LLC3.2 TWh1
#37Balancing Authority of Northern California13.8 TWh87
#49Imperial Irrigation District6.2 TWh66
#29Los Angeles Department of Water and Power18.6 TWh124
#22Nevada Power Company36.4 TWh139
#64New Harquahala Generating Company, LLC12.3 GWh1
#19Salt River Project Agricultural Improvement and Power District60.1 TWh48
#57Turlock Irrigation District1.9 TWh11
#40Western 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.489.0 TWh1,313
#5Southwest Power Pool304.2 TWh835
#6Southern Company Services, Inc. - Trans245.2 TWh417
#7California Independent System Operator173.9 TWh2,075
#9Tennessee Valley Authority163.6 TWh204
#10Florida Power & Light Co.150.9 TWh187
#12New York Independent System Operator134.9 TWh1,211
#13Duke Energy Carolinas112.1 TWh565
#15ISO New England110.8 TWh1,577
#16Bonneville Power Administration89.8 TWh163