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 Oct 2025
Annual Generation 187.5 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 | 42.7% Solar | 26.5% Water | 11% Wind | 11% Nuclear | 9.5%

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Daily Net Generation for California Independent System Operator for the past 3 Years

1M1M800k800k600k600k400k400k200k200k0020232023Jul '23Jul '2320242024Jul '24Jul '2420252025Jul '25Jul '25
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List of All California Independent System Operator Power Plants

Displaying Results 401 to 500 of 1,387
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
RE Astoria 2RE Astoria 2 LLCRosamond, CA145 GWhNov 2016Aug 2025 Solar
RE AstoriaRE Astoria LLCRosamond, CA176 GWhNov 2016Aug 2025 Solar
RE Adams East, LLCOnward EnergyFresno, CA39 GWhNov 2014Dec 2024 Solar
RCWD PV ProjectMN8 Energy LLCMurrieta, CA8 GWhMay 2016Dec 2024 Solar
Ratkovich AlhambraBloom EnergyAlhambra, CA8 GWhNov 2018Dec 2024 Natural Gas
Rancho Cucamonga Dist #1Altus Power America Management, LLCRancho Cucamonga, CA3 GWhMar 2015Dec 2024 Solar
Ramona Solar EnergySan Diego Gas & Electric CoRamona, CA5 GWhMar 2017Dec 2024 Solar
Ramona 2MN8 Energy LLCRamona, CA9 GWhNov 2013Dec 2024 Solar
Ramona 1MN8 Energy LLCRamona, CA3 GWhNov 2013Dec 2024 Solar
RalstonPlacer County Water AgencyForesthill, CA328 GWhSep 1966Dec 2024 Water
Radiance Solar 5Greenbacker Renewable Energy CorporationLancaster, CA3 GWhJun 2013Dec 2024 Solar
Radiance Solar 4Greenbacker Renewable Energy CorporationLancaster, CA3 GWhJun 2013Dec 2024 Solar
Raceway Solar & StorageAES Clean EnergyLancaster, CA370 GWhApr 2024Aug 2025 Solar
Rabbitbrush Solar, LLCLeeward Asset Management, LLCRosamond, CA249 GWhSep 2022Aug 2025 Solar
R C KirkwoodCity & County of San FranciscoGroveland, CA402 GWhJan 1967Aug 2025 Water
Quinto Solar PV ProjectArevon Energy, Inc.Gustine, CA257 GWhOct 2015Dec 2024 Solar
Q PlantQualcomm IncorporatedSan Diego, CA66 MWhJun 2013Dec 2024 Natural Gas
PVN Milliken, LLCPVN Milliken, LLCOntario, CA5 GWhMay 2017Dec 2024 Solar
Pumpjack Solar IDuke Energy Renewables ServicesMcKittrick, CA46 GWhDec 2014Dec 2024 Solar
Puente Hills Energy RecoveryLos Angeles County SanitationWhittier, CA152 GWhSep 1986Aug 2025 Landfill Gas
PSREC/SIAD SolarPlumas Sierra Rural Electric CoopHerlong, CA6 GWhAug 2018Dec 2024 Solar
ProximaProxima Solar, LLCCrows Landing, CA462 GWhMar 2024Aug 2025 Solar
Prologis L.PPowerflexTracy, CA6 GWhJul 2018Dec 2024 Solar
Preferred Freezer San LeandroPowerflexSan Leandro, CA3 GWhJun 2017Dec 2023 Solar
Powhatan Solar Power Generation StationAES Distributed EnergyApple Valley, CA3 GWhNov 2013Dec 2024 Solar
Power Generation Station (PGS) 2East Bay Municipal Util DistOakland, CA16 GWhNov 2011Dec 2024 Other Biomass Gas
Potrero Hills Energy ProducersPotrero Hills Energy Producers, LLCSuisun City, CA59 GWhMar 2016Dec 2024 Landfill Gas
Porterville SolarAltus Power America Management, LLCPorterville, CA6 GWhDec 2013Dec 2024 Solar
Porterville 6 and 7Arevon Energy, Inc.Porterville, CA3 GWhJun 2014Dec 2024 Solar
Portal Ridge Solar C, LLCPortal Ridge Solar, LLCLancaster, CA25 GWhJan 2017Dec 2024 Solar
Portal Ridge Solar B, LLCPortal Ridge Solar, LLCLancaster, CA47 GWhJan 2017Dec 2024 Solar
PortalSouthern California Edison CoLakeshore, CA19 GWhNov 1956Dec 2024 Water
PooleSouthern California Edison CoLee Vining, CA23 GWhApr 1924Dec 2024 Water
Ponderosa Bailey CreekSnow Mountain Hydro LLCManton, CA3 GWhFeb 1990Dec 2024 Water
POM Plant 2Wonderful Renewable Energy, LLC.Del Rey, CA4 GWhNov 2021Dec 2024 Solar
POM Plant 1Wonderful Renewable Energy, LLC.Del Rey, CA5 GWhNov 2021Dec 2024 Solar
POM Juice SolarWonderful Renewable Energy, LLC.Fresno, CA3 GWhJun 2021Dec 2024 Solar
POM Beverage SolarWonderful Renewable Energy, LLC.Del Rey, CA5 GWhJun 2021Dec 2024 Solar
Point WindTerra-Gen Operating Co-WindTehachapi, CA235 GWhFeb 2021Aug 2025 Wind
PoePacific Gas & Electric Co.Storrie, CA300 GWhSep 1958Aug 2025 Water
Plant No 2 Orange CountyOrange County Sanitation DistHuntington Beach, CA59 GWhMay 1993Dec 2024 Other Biomass Gas : 73.7% Natural Gas : 26.0%
Plant No 1 Orange CountyOrange County Sanitation DistFountain Valley, CA40 GWhMay 1993Dec 2024 Other Biomass Gas : 80.1% Natural Gas : 19.9%
Pixar - EmeryvilleBloom EnergyEmeryville, CA8 GWhDec 2013Dec 2024 Natural Gas
Pivot Energy PPA 22Pivot EnergyVisalia, CA68 MWhSep 2024Dec 2024 Solar
Pit 7Pacific Gas & Electric Co.Montgomery Creek, CA438 GWhAug 1965Aug 2025 Water
Pit 6Pacific Gas & Electric Co.Montgomery Creek, CA242 GWhJul 1965Dec 2024 Water
Pit 5Pacific Gas & Electric Co.Big Bend, CA638 GWhMar 1944Aug 2025 Water
Pit 4Pacific Gas & Electric Co.Big Bend, CA396 GWhJun 1955Aug 2025 Water
Pit 3Pacific Gas & Electric Co.Burney, CA333 GWhJun 1925Dec 2024 Water
Pit 1Pacific Gas & Electric Co.Burney, CA188 GWhAug 1922Dec 2024 Water
Pio Pico Energy CenterPio Pico Energy Center LLCSan Diego, CA66 GWhOct 2016Dec 2024 Natural Gas
Pinyon Pine IIPinyon Pines Wind II, LLCMojave, CA233 GWhOct 2012Dec 2024 Wind
Pinyon Pine IPinyon Pines Wind I, LLCMojave, CA307 GWhOct 2012Dec 2024 Wind
Pine FlatKings River Conservation DistPiedra, CA335 GWhDec 1983Aug 2025 Water
Phoenix Wind Power LLCAvangrid Power LLCNorth Palm Springs, CA3 GWhMay 1999Dec 2024 Wind
PhoenixPacific Gas & Electric Co.Sonora, CA8 GWhJan 1940Oct 2024 Water
Phillips 66 Rodeo RefineryPhillips 66 CompanyRodeo, CA291 GWhApr 1987Aug 2024 Other Gas : 72.8% Natural Gas : 27.2%
PFMG Solar Grossmont Helix LLCAltus Power America Management, LLCLa Mesa, CA2 GWhApr 2018Dec 2024 Solar
PerrisMetropolitan Water District of S CAPerris, CA5 GWhApr 1983Jan 2024 Water
Pebbly Beach Generating Station HybridSouthern California Edison CoAvalon, CA29 GWhJun 1958Aug 2025 Distillate Fuel Oil : 94.5% Gaseous Propane : 5.5%
PE BerkeleyBerkeley Cogeneration FacilityBerkeley, CA167 GWhMay 1987Aug 2025 Natural Gas
PaulsellCrow Creek Solar, LLCCrows Landing, CA44 GWhMay 2024Aug 2025 Solar
Pastoria Energy Facility, LLCCalpine Corp - Pastoria Energy CenterLebec, CA4 TWhApr 2005Aug 2025 Natural Gas
Paso Robles - Municipal AirportOnyx Asset Services GroupPaso Robles, CA6 GWhDec 2023Dec 2024 Solar
Parnassus Central Utility PlantUniversity of California-San FranciscoSan Francisco, CA68 GWhDec 1995Aug 2025 Natural Gas
ParkerMerced Irrigation DistrictSnelling, CA5 GWhMar 1982Oct 2024 Water
Park Meridian #1Altus Power America Management, LLCRiverside, CA2 GWhFeb 2015Dec 2024 Solar
PardeeEast Bay Municipal Util DistValley Springs, CA118 GWhJun 1930Dec 2024 Water
Panoche Valley Solar FarmConsolidated Edison Development Inc.Paicines, CA298 GWhDec 2017Aug 2025 Solar
Panoche Energy CenterPanoche Energy Center, LLCFirebaugh, CA928 GWhMay 2009Aug 2025 Natural Gas
Palomar EnergySan Diego Gas & Electric CoEscondido, CA1 TWhSep 2005Aug 2025 Natural Gas
Palo Verde CollegeScale Sustainable I, LLCBlythe, CA2 GWhJul 2009Dec 2024 Solar
Painted Hills Wind ParkTerra-Gen Operating Co-WindWhitewater, CA176 GWhOct 1985Aug 2025 Wind
Pacific Wind LLCEDF Renewable Asset Holdings, Inc.Rosamond, CA311 GWhJul 2012Dec 2024 Wind
Pacific-Ultrapower Chinese StationIHI Power Services CorpJamestown, CA142 GWhSep 1986Aug 2025 Wood/Wood Waste Solids : 99.7%
Pacific Ethanol Madera Solar ArraySeaboard Energy California, LLCMadera, CA2 GWhJul 2018Dec 2024 Solar
P66 Rodeo SolarP66 Rodeo SolarRodeo, CA22 GWhMar 2023Aug 2025 Solar
P PlantQualcomm IncorporatedSan Diego, CA30 GWhFeb 2007Jul 2024 Natural Gas
Oxnard Wastewater Treatment PlantOxnard City ofOxnard, CA4 GWhJul 1981Aug 2025 Other Biomass Gas : 95.0% Natural Gas : 5.0%
Oxnard Paper MillNew-Indy, Oxnard LLCOxnard, CA135 GWhFeb 1986Aug 2025 Natural Gas
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CA479 GWhJun 1982Aug 2025 Natural Gas
Oxbow (CA)Placer County Water AgencyForesthill, CA29 GWhSep 1966Sep 2024 Water
Otoe Solar Power Generation Station 1 LLAES Distributed EnergyApple Valley, CA3 GWhNov 2013Dec 2024 Solar
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CA2 TWhSep 2009Aug 2025 Natural Gas
Oroville Cogeneration LPApex Power Generation Corp.Oroville, CA672 MWhDec 1989Dec 2024 Natural Gas
Oro LomaConsolidated Edison Development Inc.Oro Loma, CA25 GWhDec 2016Dec 2024 Solar
Ormond BeachOrmond Beach Power, LLCOxnard, CA43 GWhJul 1971Aug 2025 Natural Gas
Orion Solar IIOrion Solar II, LLCArvin, CA19 GWhMay 2014Dec 2024 Solar
Orion Solar IOrion Solar I LLCArvin, CA28 GWhMar 2014Dec 2024 Solar
Orange Grove Peaking FacilityOrange Grove Energy LPPala, CA24 GWhMay 2010Dec 2024 Natural Gas
Orange Coast College PH2 Solar ProjectSolar Star Coastal Pirate, LLCCosta Mesa, CA4 GWhApr 2022Dec 2024 Solar
Open Sky Ranch IncBravo REC Management LLCRiverdale, CA2 GWhJun 2024Dec 2024 Solar
Open Sky DairyRenewable Solar, IncRiverdale, CA2 GWhJun 2024Dec 2024 Solar
One Ten Partners PVOne Ten Partners, LLCPalmdale, CA6 GWhAug 2017Dec 2024 Solar
One Market PlazaParamount Group IncSan Francisco, CA177 MWhNov 2003Dec 2024 Natural Gas
Oltmans SCE at JurupaCalifornia PV Energy LLCOntario, CA2 GWhNov 2013Dec 2024 Solar
Oltmans SCE at ChampagneCalifornia PV Energy LLCOntario, CA2 GWhNov 2013Dec 2024 Solar
OlsenOlsen Power PartnersWhitmore, CA14 GWhDec 1989Dec 2024 Water
OK Produce Fresno CarportOK ProduceFresno, CA4 GWhDec 2018Dec 2024 Solar
OES Biogas PowerOrganic Energy Solutions, Inc.San Bernardino, CA5 GWh-Dec 2024 Other Biomass Gas

Surrounding Balancing Authorities

RankBalancing AuthorityAnnual Net Generation# Power Plants
#26Arizona Public Service Company23.5 TWh92
#54Arlington Valley, LLC3.4 TWh1
#35Balancing Authority of Northern California14.7 TWh87
#48Imperial Irrigation District6.2 TWh66
#31Los Angeles Department of Water and Power18.6 TWh124
#22Nevada Power Company36.9 TWh139
#60New Harquahala Generating Company, LLC819.6 GWh1
#19Salt River Project Agricultural Improvement and Power District60.3 TWh48
#57Turlock Irrigation District2.1 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.484.1 TWh1,313
#5Southwest Power Pool298.8 TWh835
#6Southern Company Services, Inc. - Trans250.0 TWh417
#7California Independent System Operator187.5 TWh2,075
#8Tennessee Valley Authority160.9 TWh204
#10Florida Power & Light Co.149.7 TWh187
#12New York Independent System Operator131.5 TWh1,211
#13Duke Energy Carolinas112.5 TWh565
#14ISO New England104.5 TWh1,577
#16Bonneville Power Administration80.6 TWh163