California Independent System Operator
Balancing Authority Summary Information
California Independent System Operator is ranked #7 out of 64 balancing authorities in terms of total annual electricity generation.
| Balancing Authority | California Independent System Operator |
|---|---|
| States | Arizona California Nevada New Mexico |
| Last Update | Oct 2026 |
| Annual Generation | 168.7 TWh |
| Power Plants | 2,170 |
| Utilities | 1,001 |
| Ranked #7 out of 64 in terms of net annual generation | |
| Ranked #14 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 32% Solar | 30.9% Water | 12.2% Wind | 11.8% Nuclear | 11.2% Coal | 0% |
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Daily Net Generation for California Independent System Operator for the past 3 Years
| Plant Name | Utility | Location | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|
| Prologis L.P | Powerflex | Tracy, CA | 6 GWh | Jul 2018 | Dec 2025 | Solar |
| Medline Ind. Phase 2 Tracy | Powerflex | Tracy, CA | 2 GWh | Mar 2018 | Aug 2025 | Solar |
| Oxnard | Procter&Gamble Paper Products Co-Oxnard | Oxnard, CA | 422 GWh | Jun 1982 | Jul 2026 | Natural Gas |
| CPA 2132 E Dominguez | Prologis Logistics Services Incorporated | Carson, CA | 913 MWh | Jul 2025 | Dec 2025 | Solar |
| CPA Wilmington 1 | Prologis Logistics Services Incorporated | Carson, CA | 1 GWh | Jul 2025 | Dec 2025 | Solar |
| IPC 25 Solar | Prologis Logistics Services Incorporated | Tracy, CA | 5 GWh | Jun 2024 | Dec 2025 | Solar |
| Mountain View Ind Park 1-sline001 | Prologis Logistics Services Incorporated | Fontana, CA | 371 MWh | Aug 2023 | Dec 2025 | Solar |
| Tracy 18 - SLCVA418 | Prologis Logistics Services Incorporated | Tracy, CA | 182 MWh | Sep 2025 | Dec 2025 | Solar |
| Chatsworth Industrial Center 1-SLLAX601 | Prologis Logistics Services Incorporated | Chatsworth, CA | 132 MWh | Sep 2025 | Dec 2025 | Solar |
| Proxima | Proxima Solar, LLC | Crows Landing, CA | 467 GWh | Mar 2024 | Jul 2026 | Solar |
| PVN Milliken, LLC | PVN Milliken, LLC | Ontario, CA | 5 GWh | May 2017 | Dec 2025 | Solar |
| W Plant | Qualcomm Incorporated | San Diego, CA | 14 GWh | Jun 2005 | Jul 2026 | Natural Gas |
| Kroger La Habra | Ralph's Grocery Company | La Habra, CA | 2 GWh | Mar 2020 | Dec 2024 | Solar |
| RE Astoria 2 | RE Astoria 2 LLC | Rosamond, CA | 188 GWh | Nov 2016 | Jul 2026 | Solar |
| RE Astoria | RE Astoria LLC | Rosamond, CA | 186 GWh | Nov 2016 | Jul 2026 | Solar |
| RE Gaskell West 4 LLC | RE Gaskell West LLC | Rosamond, CA | 48 GWh | Apr 2023 | Dec 2025 | Solar |
| RE Gaskell West 3 LLC | RE Gaskell West LLC | Rosamond, CA | 51 GWh | Apr 2023 | Dec 2025 | Solar |
| RE Gaskell West 5 LLC | RE Gaskell West LLC | Rosamond, CA | 48 GWh | Apr 2023 | Dec 2025 | Solar |
| RE Gaskell West 2 LLC | RE Gaskell West LLC | Rosamond, CA | 123 GWh | Apr 2023 | Jul 2026 | Solar |
| RE Kansas South LLC | RE Kansas South LLC | Lemoore, CA | 51 GWh | May 2013 | Dec 2025 | Solar |
| Mustang Two | RE Mustang Two LLC | Lemoore, CA | 373 GWh | Oct 2020 | Apr 2026 | Solar |
| RE-VFO LLC | RE-VFO LLC | Visalia, CA | 2 GWh | Apr 2009 | Dec 2025 | Solar |
| Central San | REC CSD, LLC | Martinez, CA | 3 GWh | Dec 2024 | Dec 2025 | Solar |
| Kern Del Oro | REC KDO, LLC | Bakersfield, CA | 2 GWh | Nov 2024 | Dec 2025 | Solar |
| Sutter Home Winery Westside | REC SHW, LLC | Lodi, CA | 295 MWh | Sep 2025 | Dec 2025 | Solar |
| Sutter Home Winery TCC | REC SHW, LLC | Paso Robles, CA | 2 GWh | Apr 2024 | Dec 2025 | Solar |
| Regulus Solar Project | Regulus Solar, LLC | Bakersfield, CA | 150 GWh | Oct 2014 | Dec 2025 | Solar |
| Vulcan San Emidio Solar | Renew Solar VMC LLC | Bakersfield, CA | 4 GWh | Feb 2023 | Dec 2025 | Solar |
| Danell Bros Inc | Renewable Solar, Inc | Hanford, CA | 6 GWh | Aug 2021 | Dec 2025 | Solar |
| Dover Dairy | Renewable Solar, Inc | Hanford, CA | 2 GWh | Apr 2022 | Dec 2025 | Solar |
| Allied Potato | Renewable Solar, Inc | Bakersfield, CA | 310 MWh | Apr 2025 | Dec 2025 | Solar |
| Zonneveld Oak Grove | Renewable Solar, Inc | Laton, CA | 388 MWh | May 2024 | Dec 2025 | Solar |
| Avalon Dairy | Renewable Solar, Inc | Wasco, CA | 792 MWh | Aug 2024 | Dec 2025 | Solar |
| Superior Almond Hulling | Renewable Solar, Inc | Cantua Creek, CA | 472 MWh | Aug 2024 | Dec 2025 | Solar |
| River Ranch Dairy | Renewable Solar, Inc | Hanford, CA | 995 MWh | May 2024 | Dec 2025 | Solar |
| Open Sky Dairy | Renewable Solar, Inc | Riverdale, CA | 419 MWh | Jun 2024 | Dec 2025 | Solar |
| Resurgence Solar | Resurgence Solar | Boron, CA | 241 GWh | Jul 2023 | Jul 2026 | Solar |
| Resurgence Solar II | Resurgence Solar II | Boron, CA | 130 GWh | Jul 2023 | Jul 2026 | Solar |
| Rio Bravo Rocklin | Rio Bravo Rocklin | Lincoln, CA | 147 GWh | May 1989 | Dec 2025 | Wood/Wood Waste Solids : 99.0% Natural Gas : 1.0% |
| Rio Vista Solar | Rio Vista Executive Boat & RV Storage, LLC | Rio Vista, CA | 3 GWh | Mar 2025 | Dec 2025 | Solar |
| Rising Tree Wind Farm II | Rising Tree Wind Farm II LLC | Mojave, CA | 54 GWh | Dec 2014 | Dec 2025 | Wind |
| Rising Tree Wind Farm III | Rising Tree Wind Farm III LLC | Mojave, CA | 260 GWh | May 2015 | Dec 2025 | Wind |
| Rising Tree Wind Farm | Rising Tree Wind Farm LLC | Mojave, CA | 250 GWh | Dec 2014 | Dec 2025 | Wind |
| Riverside RWQCP Fuel Cell | Riverside Fuel Cell, LLC | Riverside, CA | 7 GWh | Jul 2016 | Dec 2025 | Other Biomass Gas : 72.9% Natural Gas : 27.1% |
| American Canyon Solar | RP Napa Solar 1, LLC | American Canyon, CA | 6 GWh | Aug 2019 | Dec 2025 | Solar |
| Avenue 26 Solar | RPCA Solar 1, LLC | Chowchilla, CA | 13 GWh | Oct 2024 | Dec 2025 | Solar |
| Byron Highway Solar | RPCA Solar 3, LLC | Byron, CA | 12 GWh | Oct 2022 | Dec 2025 | Solar |
| East Cleveland Road Solar | RPCA Solar 7, LLC | El Nido, CA | 6 GWh | Jan 2025 | Dec 2025 | Solar |
| Russell City Energy Center | Russell City Energy Company LLC | Hayward, CA | 2 TWh | Jul 2013 | Jul 2026 | Natural Gas |
| CED Ducor 1 | RWE Clean Energy | Ducor, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| CED Ducor 3 | RWE Clean Energy | Ducor, CA | 38 GWh | Nov 2016 | Dec 2025 | Solar |
| CED Ducor 2 | RWE Clean Energy | Ducor, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| CED Ducor 4 | RWE Clean Energy | Ducor, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| Atwell Island West Solar | RWE Clean Energy | Alpaugh, CA | 52 GWh | Apr 2015 | Dec 2025 | Solar |
| White River Solar 2 | RWE Clean Energy | Alpaugh, CA | 49 GWh | Aug 2014 | Dec 2025 | Solar |
| Panoche Valley Solar Farm | RWE Clean Energy | Paicines, CA | 243 GWh | Dec 2017 | Jul 2026 | Solar |
| Copper Mountain Solar 4, LLC | RWE Clean Energy | Boulder City, NV | 248 GWh | Aug 2016 | Dec 2025 | Solar |
| Blackwell Solar Park | RWE Clean Energy | Lost Hills, CA | 39 GWh | Dec 2018 | Dec 2025 | Solar |
| Copper Mountain Solar 2 | RWE Clean Energy | Boulder City, NV | 726 GWh | Jun 2012 | Dec 2025 | Solar |
| Alpaugh 50 | RWE Clean Energy | Alpaugh, CA | 57 GWh | Nov 2012 | Dec 2025 | Solar |
| Alpaugh North | RWE Clean Energy | Alpaugh, CA | 21 GWh | Nov 2012 | Dec 2025 | Solar |
| CM48 | RWE Clean Energy | Boulder City, NV | 90 GWh | May 2010 | Dec 2025 | Solar |
| Great Valley Solar Portfolio Holdings, L | RWE Clean Energy | Cantua Creek, CA | 492 GWh | Nov 2017 | Jul 2026 | Solar |
| Corcoran Solar | RWE Clean Energy | Corcoran, CA | 22 GWh | Jul 2013 | Dec 2025 | Solar |
| White River Solar | RWE Clean Energy | Alpaugh, CA | 36 GWh | Jun 2013 | Dec 2025 | Solar |
| Oro Loma | RWE Clean Energy | Oro Loma, CA | 49 GWh | Dec 2016 | Dec 2025 | Solar |
| Mesquite Solar 1 | RWE Clean Energy | Tonopah, AZ | 392 GWh | Oct 2011 | Dec 2025 | Solar |
| Corcoran Solar 3 | RWE Clean Energy | Corcoran, CA | 48 GWh | Jan 2016 | Dec 2025 | Solar |
| CM10 | RWE Clean Energy | Boulder City, NV | 18 GWh | Nov 2008 | Dec 2025 | Solar |
| CED Avenal | RWE Clean Energy | Avenal, CA | 16 GWh | Dec 2016 | Dec 2025 | Solar |
| Corcoran Solar 2 | RWE Clean Energy | Corcoran, CA | 47 GWh | Apr 2015 | Dec 2025 | Solar |
| Desert Hot Springs Solar | RWE Clean Energy | Desert Hot Springs, CA | 3 GWh | Nov 2013 | Dec 2025 | Solar |
| Fifth Standard Solar PV, LLC (Hybrid) | RWE Clean Energy | Huron, CA | 338 GWh | Aug 2023 | Jul 2026 | Solar |
| Wistaria Ranch Solar | RWE Clean Energy | Calexico, CA | 268 GWh | Nov 2018 | Jul 2026 | Solar |
| Mesquite Solar 2, LLC | RWE Clean Energy | Tonopah, AZ | 248 GWh | Nov 2016 | Jul 2026 | Solar |
| Northern Orchard Solar PV, LLC | RWE Clean Energy | Taft, CA | 416 GWh | Jun 2025 | Jul 2026 | Solar |
| Mesquite Solar 3, LLC | RWE Clean Energy | Tonopah, AZ | 437 GWh | Nov 2016 | Jul 2026 | Solar |
| Mesquite Solar 4, LLC | RWE Clean Energy | Tonopah, AZ | 140 GWh | Dec 2023 | Jul 2026 | Solar |
| Solano Wind | Sacramento Municipal Util Dist | Rio Vista, CA | 708 GWh | May 1994 | Jul 2026 | Wind |
| Chili Bar | Sacramento Municipal Util Dist | Placerville, CA | 25 GWh | Feb 1965 | Dec 2025 | Water |
| Saint Agnes Medical Center | Saint Agnes Medical Center | Fresno, CA | 32 GWh | Apr 2001 | Jul 2026 | Natural Gas |
| Salinas River Cogeneration | Salinas River Cogeneration Co | San Ardo, CA | 256 GWh | Oct 1991 | Jul 2026 | Natural Gas |
| Salka Cabazon Wind | Salka Cabazon Wind LLC | North Palm Springs, CA | 13 GWh | Dec 1998 | Dec 2025 | Wind |
| San Antonio Regional Hospital | San Antonio Regional Hospital | Upland, CA | 13 GWh | Dec 1984 | Dec 2025 | Natural Gas |
| SB Water Reclamation Fuel Cell | San Bernardino Fuel Cell, LLC | San Bernardino, CA | 8 GWh | May 2021 | Dec 2025 | Other Biomass Gas : 79.3% Natural Gas : 20.7% |
| Waterman Turnout Hydroelectric | San Bernardino Valley Mun. Water Dist. | San Bernardino, CA | 2 GWh | Aug 2024 | Dec 2025 | Water |
| Ramona Solar Energy | San Diego Gas & Electric Co | Ramona, CA | 2 GWh | Mar 2017 | Dec 2025 | Solar |
| Miramar Energy Facility | San Diego Gas & Electric Co | San Diego, CA | 12 GWh | May 2005 | Jul 2026 | Natural Gas |
| Palomar Energy | San Diego Gas & Electric Co | Escondido, CA | 1 TWh | Sep 2005 | Jul 2026 | Natural Gas |
| Cuyamaca Peak Energy Plant | San Diego Gas & Electric Co | El Cajon, CA | 10 GWh | Apr 2002 | Dec 2025 | Natural Gas |
| San Diego State University | San Diego State University | San Diego, CA | 59 GWh | Aug 2002 | Jul 2026 | Natural Gas : 97.5% Solar : 2.5% |
| San Dimas Wash Generating Station | San Gabriel Valley Mun Wtr Dt | San Dimas, CA | 1 GWh | Feb 1986 | Sep 2025 | Water |
| San Gorgonio Farms Wind Farm | San Gorgonio Farms Inc | Whitewater, CA | 52 GWh | Feb 1983 | Dec 2025 | Wind |
| Karen Avenue Wind Farm | San Gorgonio Farms Inc | North Palm Springs, CA | 26 GWh | Dec 1984 | Dec 2025 | Wind |
| San Jose Cogeneration | San Jose State University Fclts Dev &Ops | San Jose, CA | 35 GWh | Nov 1984 | Jul 2026 | Natural Gas |
| SJ/SC WPCP | San Jose/Santa Clara Water P C | San Jose, CA | 67 GWh | Jan 1953 | Jul 2026 | Natural Gas : 54.3% Other Biomass Gas : 45.6% |
| Santa Cruz Energy | Santa Cruz Energy LLC | Santa Cruz, CA | 9 GWh | Oct 2009 | Dec 2025 | Landfill Gas |
| Palo Verde College | Scale Sustainable I, LLC | Blythe, CA | 2 GWh | Jul 2009 | Dec 2025 | Solar |
| SCDA Solar 1 | SCDA Solar 1, LLC | Sacramento, CA | 14 GWh | Sep 2017 | Dec 2025 | Solar |
| Cawelo Water District Solar | Scooby Solar, LLC | Famoso, CA | 7 GWh | Sep 2023 | Dec 2025 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #25 | Arizona Public Service Company | 25.8 TWh | 102 |
| #55 | Arlington Valley, LLC | 3.2 TWh | 1 |
| #38 | Balancing Authority of Northern California | 13.9 TWh | 91 |
| #49 | Imperial Irrigation District | 6.2 TWh | 66 |
| #29 | Los Angeles Department of Water and Power | 19.3 TWh | 132 |
| #22 | Nevada Power Company | 38.6 TWh | 143 |
| #51 | PUD No. 1 of Douglas County | 4.4 TWh | 5 |
| #19 | Salt River Project Agricultural Improvement and Power District | 60.5 TWh | 51 |
| #57 | Turlock Irrigation District | 1.9 TWh | 11 |
| #39 | Western Area Power Administration - Desert Southwest Region | 10.6 TWh | 36 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #3 | Electric Reliability Council of Texas, Inc. | 506.3 TWh | 1,487 |
| #5 | Southwest Power Pool | 314.5 TWh | 876 |
| #6 | Southern Company Services, Inc. - Trans | 259.3 TWh | 423 |
| #7 | California Independent System Operator | 168.7 TWh | 2,170 |
| #9 | Tennessee Valley Authority | 166.2 TWh | 209 |
| #10 | Florida Power & Light Co. | 153.0 TWh | 188 |
| #12 | New York Independent System Operator | 134.1 TWh | 1,334 |
| #13 | Duke Energy Carolinas | 113.4 TWh | 578 |
| #15 | ISO New England | 112.2 TWh | 1,667 |
| #16 | Bonneville Power Administration | 91.1 TWh | 170 |