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
Richmond CogenChevron Products Company-RichmondRichmond, CA970 GWhJul 1992Oct 2025 Natural Gas : 97.3% Other Gas : 2.7%
J S EastwoodSouthern California Edison CoShaver Lake, CA82 GWhNov 1987Oct 2025 Water
Coso Power DevelopersCoso Operating Co LLCInyokern, CA302 GWhOct 1989Oct 2025 Geothermal
Loma Linda University CogenLoma Linda UniversityLoma Linda, CA64 GWhJan 1980Oct 2025 Natural Gas
Dixie ValleyOrmat Nevada IncFallon, NV401 GWhMay 1988Oct 2025 Geothermal
Gas Utilization FacilityCity of San DiegoSan Diego, CA31 GWhMay 1985Oct 2025 Other Biomass Gas
BeldenPacific Gas & Electric Co.Belden, CA184 GWhAug 1969Oct 2025 Water
ColgateYuba County Water AgencyDobbins, CA1 TWhSep 1969Oct 2025 Water
US BoraxU S Borax IncBoron, CA275 GWhJun 1984Oct 2025 Natural Gas
Encina Water Pollution ControlEncina Joint Powers AuthorityCarlsbad, CA14 GWhOct 2008Oct 2025 Other Biomass Gas : 94.2% Natural Gas : 5.8%
Caribou 2Pacific Gas & Electric Co.Belden, CA387 GWhOct 1958Oct 2025 Water
Martinez RefiningMartinez Refining CoMartinez, CA759 GWhOct 1995Oct 2025 Natural Gas : 96.5% Other Gas : 3.5%
Western Power & Steam IncWestern Power and Steam II LLCBakersfield, CA25 GWhFeb 1990Oct 2025 Natural Gas
Salinas River CogenerationSalinas River Cogeneration CoSan Ardo, CA255 GWhOct 1991Oct 2025 Natural Gas
High Desert Power PlantMRP Generation Holdings, LLCVictorville, CA3 TWhMar 2003Oct 2025 Natural Gas
New-Indy Ontario MillNew-Indy Ontario LLCOntario, CA245 GWhMay 1985Oct 2025 Natural Gas
Argus Cogen PlantSearles Valley Minerals Operations Inc.Trona, CA256 GWhNov 1947Oct 2025 Bituminous Coal : 95.1% Natural Gas : 4.9%
Solano WindSacramento Municipal Util DistRio Vista, CA793 GWhMay 1994Oct 2025 Wind
San Diego State UniversitySan Diego State UniversitySan Diego, CA53 GWhAug 2002Oct 2025 Natural Gas : 97.5% Solar : 2.5%
Coso Finance PartnersCoso Operating Co LLCInyokern, CA367 GWhJun 1987Oct 2025 Geothermal
ElectraPacific Gas & Electric Co.Jackson, CA243 GWhMay 1948Oct 2025 Water
HaasPacific Gas & Electric Co.Balch Camp, CA195 GWhNov 1958Oct 2025 Water
Blythe Energy IncAltaGas Blythe Operations IncBlythe, CA346 GWhNov 2003Oct 2025 Natural Gas
CP Kelco San Diego PlantCP Kelco US Inc.San Diego, CA74 GWhSep 1983Oct 2025 Natural Gas
Taft 26C CogenChevron USA IncTaft, CA43 GWhJun 1982Oct 2025 Natural Gas
Humboldt BayPacific Gas & Electric Co.Eureka, CA360 GWhAug 2010Oct 2025 Natural Gas : 99.6%
James B BlackPacific Gas & Electric Co.Big Bend, CA606 GWhNov 1965Oct 2025 Water
Saint Agnes Medical CenterSaint Agnes Medical CenterFresno, CA33 GWhApr 2001Oct 2025 Natural Gas
Kerckhoff 2Pacific Gas & Electric Co.Auberry, CA371 GWhApr 1983Oct 2025 Water
Dynegy Moss Landing Power Plant HybridDynegy -Moss Landing LLCMoss Landing, CA3 TWhNov 1967Oct 2025 Natural Gas
La Paloma Generating PlantCXA La Paloma LLCMcKittrick, CA2 TWhDec 2002Oct 2025 Natural Gas
El Segundo CogenChevron USA Inc-El SegundoEl Segundo, CA1 TWhNov 1987Oct 2025 Natural Gas : 99.7%
South Belridge Cogeneration FacilityAERA Energy LLCMcKittrick, CA469 GWhNov 1985Oct 2025 Natural Gas
Geothermal 2Northern California Power AgnyMiddletown, CA317 GWhNov 1985Oct 2025 Geothermal
San Jose CogenerationSan Jose State University Fclts Dev &OpsSan Jose, CA35 GWhNov 1984Oct 2025 Natural Gas
Pit 4Pacific Gas & Electric Co.Big Bend, CA405 GWhJun 1955Oct 2025 Water
Pit 5Pacific Gas & Electric Co.Big Bend, CA620 GWhMar 1944Oct 2025 Water
Lockhart Solar PV, LLCTerra-Gen Operating Co-SolarHinkley, CA244 GWhNov 1989Oct 2025 Solar
Pit 7Pacific Gas & Electric Co.Montgomery Creek, CA448 GWhAug 1965Oct 2025 Water
PoePacific Gas & Electric Co.Storrie, CA326 GWhSep 1958Oct 2025 Water
Rock CreekPacific Gas & Electric Co.Storrie, CA612 GWhFeb 1950Oct 2025 Water
Los Esteros Critical Energy CenterLos Esteros Critical Energy Facility LLCSan Jose, CA140 GWhJan 2003Oct 2025 Natural Gas
Berry Cogen Tanne Hills 18Berry Petroleum CoMaricopa, CA140 GWhNov 1986Oct 2025 Natural Gas
Pacific-Ultrapower Chinese StationIHI Power Services CorpJamestown, CA138 GWhSep 1986Oct 2025 Wood/Wood Waste Solids : 99.7%
Oxnard Wastewater Treatment PlantOxnard City ofOxnard, CA4 GWhJul 1981Oct 2025 Other Biomass Gas : 95.1% Natural Gas : 4.9%
Municipal Cogen PlantPalm Springs City ofPalm Springs, CA6 GWhApr 1985Oct 2025 Natural Gas
Diablo CanyonPacific Gas & Electric Co.Avila Beach, CA18 TWhApr 1985Oct 2025 Nuclear
Geysers Unit 5-20Geysers Power Co LLCMiddletown, CA4 TWhMar 1971Oct 2025 Geothermal
Naval Hospital Medical CenterDepartment of the NavySan Diego, CA18 GWhNov 2003Oct 2025 Natural Gas
Marathon Bay Area CogenTesoro Marketing & Refining Co. LLC (Martinez)Martinez, CA604 GWhJan 1987Oct 2025 Natural Gas
Southeast Kern River CogenChevron USA IncBakersfield, CA44 GWhJan 1989Oct 2025 Natural Gas
Kern River Eastridge CogenChevron USA IncBakersfield, CA224 GWhMay 1988Oct 2025 Natural Gas
AES Alamitos LLCAES Alamitos LLCLong Beach, CA28 GWhAug 1956Oct 2025 Natural Gas
Los Medanos Energy CenterLos Medanos Energy Center LLCPittsburg, CA3 TWhJul 2001Oct 2025 Natural Gas
Collierville PowerhouseNorthern California Power AgnyMurphys, CA353 GWhOct 1989Oct 2025 Water
Big Creek 3Southern California Edison CoAuberry, CA606 GWhAug 1923Oct 2025 Water
Big Creek 4Southern California Edison CoNorth Fork, CA323 GWhMay 1951Oct 2025 Water
Biola University HybridBiola UniversityLa Mirada, CA13 GWhMar 1990Oct 2025 Natural Gas
Big Creek 2ASouthern California Edison CoAuberry, CA214 GWhJul 1928Oct 2025 Water
Crockett Cogen ProjectCrockett CogenerationCrockett, CA1 TWhNov 1995Oct 2025 Natural Gas
Desert Star Energy CenterDesert Star Energy Center SDG&EBoulder City, NV472 GWhApr 2000Oct 2025 Natural Gas
Live Oak LimitedWCAC Operating CompanyBakersfield, CA21 GWhFeb 1992Oct 2025 Natural Gas
PE BerkeleyBerkeley Cogeneration FacilityBerkeley, CA166 GWhMay 1987Oct 2025 Natural Gas
Delta Energy CenterDelta Energy Center LLCPittsburg, CA3 TWhApr 2002Oct 2025 Natural Gas
Geothermal 1Northern California Power AgnyMiddletown, CA367 GWhDec 1982Oct 2025 Geothermal
AES Huntington Beach LLCAES Huntington Beach LLCHuntington Beach, CA6 GWhMay 1958Oct 2025 Natural Gas
Childrens HospitalDTE San Diego COGEN Inc.San Diego, CA25 GWhMar 2000Oct 2025 Natural Gas
Metcalf Energy CenterCalpine Corp - Metcalf Energy CenterSan Jose, CA3 TWhMay 2005Oct 2025 Natural Gas
California Institute of TechnologyCalifornia Institute-TechnologyPasadena, CA41 GWhJul 2003Oct 2025 Natural Gas
Kaweah Delta District HospitalKaweah Delta HospitalVisalia, CA21 GWhSep 2008Oct 2025 Natural Gas
Greenleaf 2 Power PlantGreenleaf Energy LLCYuba City, CA14 GWhSep 1989Oct 2025 Natural Gas
Mammoth PoolSouthern California Edison CoNorth Fork, CA405 GWhFeb 1960Oct 2025 Water
Sunrise Power LLCSunrise Power Co LLCFellows, CA2 TWhMay 2001Oct 2025 Natural Gas
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CA2 TWhSep 2009Oct 2025 Natural Gas
Bear Mountain LimitedWCAC Operating CompanyBakersfield, CA34 GWhMar 1995Oct 2025 Natural Gas
ThermalitoCalifornia Dept. of Water ResourcesOroville, CA314 GWhJan 1968Oct 2025 Water
Puente Hills Energy RecoveryLos Angeles County SanitationWhittier, CA152 GWhSep 1986Oct 2025 Landfill Gas
Mountainview Generating StationSouthern California Edison CoRedlands, CA2 TWhNov 2005Oct 2025 Natural Gas
Humboldt Sawmill CompanyMendocino Forest ProductsScotia, CA109 GWhDec 1937Oct 2025 Wood/Wood Waste Solids : 99.8%
Dion R HolmCity & County of San FranciscoGroveland, CA466 GWhJul 1960Oct 2025 Water
MoccasinCity & County of San FranciscoMoccasin, CA280 GWhJul 1969Oct 2025 Water
R C KirkwoodCity & County of San FranciscoGroveland, CA404 GWhJan 1967Oct 2025 Water
Sycamore CogenerationSycamore Cogeneration CoBakersfield, CA280 GWhNov 1987Oct 2025 Natural Gas
Calistoga Power PlantGeysers Power Co LLCMiddletown, CA456 GWhFeb 1984Oct 2025 Geothermal
Pastoria Energy Facility, LLCCalpine Corp - Pastoria Energy CenterLebec, CA4 TWhApr 2005Oct 2025 Natural Gas
E F Oxnard Energy FacilityEF Oxnard, LLCOxnard, CA3 GWhMay 1990Oct 2025 Natural Gas
Painted Hills Wind ParkTerra-Gen Operating Co-WindWhitewater, CA173 GWhOct 1985Oct 2025 Wind
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CA476 GWhJun 1982Oct 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%
SRI International Cogen ProjectIPT SRI Cogeneration IncMenlo Park, CA23 GWhMar 1987Oct 2025 Natural Gas
Torrance Refining Company, LLCTorrance Refining Company, LLCTorrance, CA79 GWhAug 1983Oct 2025 Other Gas : 71.5% Waste Heat : 28.5%
Elk Hills Power LLCElk Hills Power LLCTupman, CA3 TWhJun 2003Oct 2025 Natural Gas
Mesa Wind Power LLCBrookfield Renewable Trading and Marketing LPNorth Palm Springs, CA8 GWhOct 1984Oct 2025 Wind
Mountain View I & IIAES Distributed EnergyNorth Palm Springs, CA286 GWhMay 2001Oct 2025 Wind
Middle ForkPlacer County Water AgencyForesthill, CA364 GWhSep 1966Oct 2025 Water
Pebbly Beach Generating Station HybridSouthern California Edison CoAvalon, CA29 GWhJun 1958Oct 2025 Distillate Fuel Oil : 94.5% Gaseous Propane : 5.5%
Wheelabrator ShastaShasta Sustainable Resource Management, Inc.Anderson, CA285 GWhSep 1987Oct 2025 Wood/Wood Waste Solids
Berry Placerita CogenShadow Wolf EnergySanta Clarita, CA2 GWhFeb 1990Oct 2025 Natural Gas
Devil CanyonCalifornia Dept. of Water ResourcesSan Bernardino, CA779 GWhNov 1972Oct 2025 Water
Edward C HyattCalifornia Dept. of Water ResourcesOroville, CA2 TWhFeb 1968Oct 2025 Water

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