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 Nov 2025
Annual Generation 188.0 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 | 43.1% Solar | 26.4% Water | 11.1% Wind | 10.6% Nuclear | 9.4%

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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 1,387
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Madera 1 PVZGlobal IncMadera, CA4 GWhNov 2017Dec 2024 Solar
Castor SolarZGlobal IncDustin Acres, CA917 MWhMar 2016Dec 2023 Solar
Merced 1 PVZGlobal IncLos Banos, CA7 GWhMar 2018Dec 2024 Solar
Eagle CreekZGlobal IncTaft, CA7 GWhNov 2019Dec 2024 Solar
Zero Waste Energy Development Co LLCZero Waste Energy Development Company LLCSan Jose, CA2 GWhJan 2015Dec 2024 Other Biomass Gas
San Manuel Central Plant CogensYuhaaviatam of San Manuel NationHighland, CA27 GWhMay 2021Dec 2024 Natural Gas
Narrows PHYuba County Water AgencyGrass Valley, CA81 GWhNov 1942Dec 2024 Water
Narrows 2Yuba County Water AgencyBrowns Valley, CA157 GWhNov 1969Dec 2024 Water
ColgateYuba County Water AgencyDobbins, CA1 TWhSep 1969Sep 2025 Water
Grassland 1&2 Solar ProjectYolo County ofDavis, CA2 GWhJun 2013Jun 2024 Solar
Yolo County Solar ProjectYolo County ofWoodland, CA534 MWhNov 2010Dec 2023 Solar
Indian Valley Dam Hydro ProjectYolo County Flood Control WCDClearlake Oaks, CA6 GWhSep 1983Aug 2024 Water
MM Yolo PowerYolo County Community Services DepartmentWoodland, CA17 GWhSep 1990Dec 2024 Landfill Gas
SC 1 Data Center, Phase 2Xeres Ventures LLCSanta Clara, CA2 GWhAug 2011Sep 2025 Distillate Fuel Oil
Wright Solar ParkWright Solar Park LLCLos Banos, CA411 GWhNov 2019Sep 2025 Solar
Wonderful Orchards - WestsideWonderful Renewable Energy, LLC.Lost Hills, CA13 GWhJul 2021Dec 2024 Solar
Wonderful Huller & ShellingWonderful Renewable Energy, LLC.Lost Hills, CA3 GWhJul 2021Dec 2024 Solar
POM Beverage SolarWonderful Renewable Energy, LLC.Del Rey, CA5 GWhJun 2021Dec 2024 Solar
POM Juice SolarWonderful Renewable Energy, LLC.Fresno, CA3 GWhJun 2021Dec 2024 Solar
Wonderful Orchards - BelridgeWonderful Renewable Energy, LLC.Lost Hills, CA12 GWhNov 2020Dec 2024 Solar
Wonderful NurseryWonderful Renewable Energy, LLC.Wasco, CA5 GWhJun 2021Dec 2024 Solar
Wonderful Orchards - New ColumbiaWonderful Renewable Energy, LLC.Firebaugh, CA10 GWhAug 2020Dec 2024 Solar
POM Plant 1Wonderful Renewable Energy, LLC.Del Rey, CA5 GWhNov 2021Dec 2024 Solar
POM Plant 2Wonderful Renewable Energy, LLC.Del Rey, CA4 GWhNov 2021Dec 2024 Solar
Wonderful Orchards - West ValleyWonderful Renewable Energy, LLC.Blackwells Corner, CA1 GWhSep 2020Dec 2024 Solar
Wonderful FirebaughWonderful Renewable Energy, LLC.Firebaugh, CA10 GWhJul 2022Dec 2024 Solar
Wonderful Lost HillsWonderful Renewable Energy, LLC.Lost Hills, CA48 GWhAug 2021Dec 2024 Solar
Wonderful KingsWonderful Renewable Energy, LLC.Lost Hills, CA8 GWhJul 2022Dec 2024 Solar
Altamont Gas RecoveryWM Renewable Energy LLCLivermore, CA39 GWhFeb 1969Dec 2024 Landfill Gas
Waste Mangement Redwood LFGTEWM Renewable Energy LLCNovato, CA13 GWhApr 2017Dec 2024 Landfill Gas
85 BWind Wall 1 LLCTehachapi, CA98 GWhDec 1984Dec 2024 Wind
85 AWind Wall 1 LLCTehachapi, CA71 GWhDec 1984Dec 2024 Wind
ZCOWind Stream Operations LLCTehachapi, CA1 GWhNov 1985Dec 2024 Wind
Victory Garden (Tehachapi)Wind Stream Operations LLCTehachapi, CA33 GWhNov 1981Dec 2024 Wind
Helzel & Schwarzhoff 86Wind Stream Operations LLCTehachapi, CA3 GWhNov 1986Dec 2024 Wind
Willow Spring Solar, LLCWillow Spring Solar LLCRosamond, CA256 GWhDec 2018Sep 2025 Solar
Whitney Point SolarWhitney Point Solar, LLCFive Points, CA44 GWhFeb 2017Dec 2024 Solar
Whitethorn Solar LLCWhitethorn Solar LLCLivermore, CA4 GWhJan 2016Dec 2024 Solar
NextEra Westside PVWestside Solar, LLCFive Points, CA41 GWhFeb 2017Dec 2024 Solar
Westside Solar Power PV1Westside Assets LLCLemoore, CA5 GWhApr 2016Dec 2024 Solar
Solar BlueWestlands Solar Blue (OZ) Owner, LLCLemoore, CA658 GWhNov 2023Sep 2025 Solar
AlmondWestlands Almond LLCLemoore, CA39 GWhAug 2023Dec 2024 Solar
Western Power & Steam IncWestern Power and Steam II LLCBakersfield, CA25 GWhFeb 1990Sep 2025 Natural Gas
Sutter Home Winery GIRWestbound Solar 3, LLCAmerican Canyon, CA2 GWhJul 2023Dec 2024 Solar
West Tambo Clean Power IIWest Tambo Clean Power IILivingston, CA877 MWhOct 2024Dec 2024 Solar
Stanton Energy Reliability Center HybridWellhead Services, IncStanton, CA2 GWhJun 2020Sep 2025 Natural Gas
Delano Energy CenterWellhead Services, IncDelano, CA7 GWhDec 2012Dec 2024 Natural Gas
Yuba City Cogen PartnersWellhead Services, IncYuba City, CA23 GWhNov 1990Dec 2024 Natural Gas
Fresno Cogen PartnersWellhead Services, IncSan Joaquin, CA2 GWhDec 1989Dec 2024 Natural Gas
El Cajon Energy CenterWellhead Services, IncEl Cajon, CA9 GWhMay 2010Dec 2024 Natural Gas
Escondido Energy CenterWellhead Services, IncEscondido, CA9 GWhDec 2013Dec 2024 Natural Gas
Chula Vista Energy CenterWellhead Services, IncChula Vista, CA2 GWhApr 2001Nov 2024 Natural Gas
Wellhead Power PanocheWellhead Services, IncFirebaugh, CA3 GWhJul 1973Dec 2024 Natural Gas
Fresno SolarWellhead Services, IncSan Joaquin, CA5 GWhSep 2015Dec 2024 Solar
McKittrick LimitedWCAC Operating CompanyBakersfield, CA6 GWhSep 1991Sep 2025 Natural Gas
Bear Mountain LimitedWCAC Operating CompanyBakersfield, CA33 GWhMar 1995Sep 2025 Natural Gas
Badger Creek LimitedWCAC Operating CompanyBakersfield, CA6 GWhMar 1991Sep 2025 Natural Gas
Chalk Cliff LimitedWCAC Operating CompanyBakersfield, CA4 GWhFeb 1990Sep 2025 Natural Gas
Live Oak LimitedWCAC Operating CompanyBakersfield, CA21 GWhFeb 1992Sep 2025 Natural Gas
Double C Generation Limited PartnershipWCAC Operating CompanyBakersfield, CA15 GWhFeb 1989Dec 2024 Natural Gas
Kern Front LimitedWCAC Operating CompanyBakersfield, CA12 GWhJan 1989Dec 2024 Natural Gas
High Sierra LimitedWCAC Operating CompanyBakersfield, CA14 GWhFeb 1989Dec 2024 Natural Gas
Watkins Manufacturing Co.Watkins Manufacturing CorporationSan Diego, CA7 GWhOct 2001Sep 2025 Natural Gas
Walnut Creek Energy ParkWalnut Creek LLCIndustry, CA63 GWhMar 2013Sep 2025 Natural Gas
Wadham Energy LPWadham Energy Ltd PartnersWilliams, CA132 GWhFeb 1989Dec 2024 Agricultural By-Products : 99.7%
Shelter Creek Condominiums SolarVista Solar, Inc.San Bruno, CA4 GWhJan 2020Dec 2024 Solar
Bio-RadVista Solar, Inc.Hercules, CA3 GWhSep 2021Dec 2024 Solar
Victory PassVictory Pass I, LLCDesert Center, CA610 GWhFeb 2024Sep 2025 Solar
Ventura SolarVentura Solar LLCFillmore, CA6 GWhAug 2021Dec 2024 Solar
Venable Solar 1Venable Solar, LLCBlythe, CA3 GWhMar 2015Dec 2024 Solar
Venable Solar 2Venable Solar, LLCBlythe, CA3 GWhMar 2015Dec 2024 Solar
Vega SolarVega Solar, LLCLos Banos, CA51 GWhFeb 2015Dec 2024 Solar
Vasco WindsVasco Winds, LLCLivermore, CA223 GWhNov 2011Dec 2024 Wind
9150 Hermosa Solar GMValta EnergyRancho Cucamonga, CA3 GWhNov 2022Dec 2024 Solar
Valero Refinery Cogeneration Unit 1Valero Refining Co CaliforniaBenicia, CA275 GWhSep 2002Sep 2025 Natural Gas : 87.7% Other Gas : 12.3%
MurphysUtica Water & Power AuthorityMurphys, CA15 GWhFeb 1954Dec 2024 Water
AngelsUtica Water & Power AuthorityAngels Camp, CA6 GWhDec 1939Dec 2024 Water
Univ of San Francisco CogenUniversity of San FranciscoSan Francisco, CA5 GWhAug 1987Dec 2024 Natural Gas
Energy CenterUniversity of RedlandsRedlands, CA1 GWhJan 2007Dec 2024 Natural Gas
Parnassus Central Utility PlantUniversity of California-San FranciscoSan Francisco, CA68 GWhDec 1995Sep 2025 Natural Gas
University of California Santa CruzUniversity of California Santa CruzSanta Cruz, CA35 GWhAug 2013Dec 2024 Natural Gas : 91.7% Solar : 8.3%
University of California San Diego HybriUniversity of California San DiegoLa Jolla, CA205 GWhJun 2001Sep 2025 Natural Gas
Univ of California San Diego SolarUniversity of California San DiegoLa Jolla, CA2 GWhNov 2008Dec 2024 Solar
UCI Facilities Management Central PlantUniversity of California IrvineIrvine, CA113 GWhJun 2007Sep 2025 Natural Gas
US BoraxU S Borax IncBoron, CA279 GWhJun 1984Sep 2025 Natural Gas
Frankenheimer Power PlantTurlock Irrigation DistrictOakdale, CA13 GWhFeb 1983Oct 2024 Water
LucianaTulare Solar Center, LLCRichgrove, CA138 GWhMar 2022Sep 2025 Solar
Trona Solar IIITrona Solar III LLCTrona, CA5 GWhMar 2023Dec 2024 Solar
Sand Bar Power PlantTri-Dam Power AuthorityStanislaus Ntl. Fores, CA85 GWhApr 1986Dec 2024 Water
Transamerica PyramidTransamerica Pyramid Properties LLCSan Francisco, CA525 MWhJun 2007Dec 2023 Natural Gas
Tranquillity IDTranquillity Solar 1, LLCTranquillity, CA3 GWhFeb 2018Dec 2024 Solar
Torrance Refining Company, LLCTorrance Refining Company, LLCTorrance, CA83 GWhAug 1983Sep 2025 Other Gas : 74.7% Waste Heat : 25.3%
Cold Canyon 1Toro Energy of California SLOSan Luis Obispo, CA4 GWhJun 2013Dec 2024 Landfill Gas
Topaz Solar FarmTopaz Solar Farms LLCSanta Margarita, CA1 TWhMar 2013Sep 2025 Solar
Titan Solar 1 (CA)Titan Solar 1, LLCBorrego Springs, CA132 GWhNov 2020Sep 2025 Solar
THUMSTHUMS Long Beach CompanyLong Beach, CA207 GWhDec 2002Sep 2025 Natural Gas
University of the PacificThe Greater Light USA LLCStockton, CA6 GWhApr 2022Dec 2024 Solar
Berrenda Mesa Water DistrictThe Greater Light USA LLCLost Hills, CA16 GWhJun 2023Dec 2024 Solar
Marathon Bay Area CogenTesoro Marketing & Refining Co. LLC (Martinez)Martinez, CA613 GWhJan 1987Sep 2025 Natural Gas
Kettering Solar 2Tesla Inc.Lancaster, CA2 GWhMay 2014Dec 2024 Solar

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#4Electric Reliability Council of Texas, Inc.485.0 TWh1,313
#5Southwest Power Pool299.9 TWh835
#6Southern Company Services, Inc. - Trans250.9 TWh417
#7California Independent System Operator188.0 TWh2,075
#9Tennessee Valley Authority161.6 TWh204
#10Florida Power & Light Co.148.9 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.5 TWh565
#15ISO New England105.5 TWh1,577
#16Bonneville Power Administration80.5 TWh163