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 | Jul 2026 |
| Annual Generation | 169.4 TWh |
| Power Plants | 2,135 |
| Utilities | 988 |
| Ranked #7 out of 64 in terms of net annual generation | |
| Ranked #12 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 34% Solar | 30% Water | 12.4% Wind | 11.3% Nuclear | 11% |
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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 |
|---|---|---|---|---|---|---|
| RE Kent South, LLC | Onward Energy | Lemoore, CA | 36 GWh | Nov 2014 | Dec 2025 | Solar |
| Woodmere Solar Farm | AES Distributed Energy | Edison, CA | 29 GWh | Nov 2015 | Dec 2025 | Solar |
| Hayworth Solar | AES Distributed Energy | Edison, CA | 47 GWh | Nov 2015 | Dec 2025 | Solar |
| Cottonwood Solar, LLC (Goose Lake) | Onward Energy | Lost Hills, CA | 30 GWh | Apr 2015 | Dec 2025 | Solar |
| Cottonwood Solar, LLC (City of Corcoran) | Onward Energy | Corcoran, CA | 21 GWh | Apr 2015 | Dec 2025 | Solar |
| Division 1 | Tesla Inc. | Lancaster, CA | 2 GWh | May 2014 | Dec 2025 | Solar |
| Division 2 | Tesla Inc. | Lancaster, CA | 2 GWh | May 2014 | Dec 2025 | Solar |
| Division 3 | Tesla Inc. | Lancaster, CA | 1 GWh | May 2014 | Dec 2025 | Solar |
| Enerparc CA1 LLC | CleanCapital Holdings | Hollister, CA | 3 GWh | May 2014 | Dec 2025 | Solar |
| CSD 2- Freedom High | CleanCapital Holdings | Oakley, CA | 1 GWh | Jul 2013 | Dec 2025 | Solar |
| CSD 2 - Heritage High | CleanCapital Holdings | Brentwood, CA | 2 GWh | Aug 2013 | Dec 2025 | Solar |
| EAFB - North Base | CleanCapital Holdings | Edwards Air Force Bas, CA | 3 GWh | Jan 2012 | Dec 2025 | Solar |
| EAFB - South Base | CleanCapital Holdings | Edwards Air Force Bas, CA | 2 GWh | Jan 2012 | Dec 2025 | Solar |
| SDCCD - Miramar | CleanCapital Holdings | San Diego, CA | 1 GWh | Jan 2011 | Dec 2025 | Solar |
| SDCWA - Twin Oaks | CleanCapital Holdings | San Marcos, CA | 2 GWh | Apr 2011 | Dec 2025 | Solar |
| RE Mustang LLC | MN8 Energy LLC | Lemoore, CA | 221 GWh | Jul 2016 | Dec 2025 | Solar |
| Lancaster Solar 1 | Boralex US Operations LLC | Lancaster, CA | 2 GWh | Oct 2014 | Dec 2025 | Solar |
| Lancaster Solar 2 | Boralex US Operations LLC | Lancaster, CA | 2 GWh | Oct 2014 | Dec 2025 | Solar |
| Hesperia | SunEdison LLC | Hesperia, CA | 3 GWh | Jul 2014 | Dec 2025 | Solar |
| CID Solar, LLC | Onward Energy | Corcoran, CA | 41 GWh | Nov 2014 | Dec 2025 | Solar |
| Farmersville | Arevon Energy, Inc. | Farmersville, CA | 6 GWh | Jun 2014 | Dec 2025 | Solar |
| Porterville 6 and 7 | Arevon Energy, Inc. | Porterville, CA | 4 GWh | Jun 2014 | 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 |
| Lone Valley Solar Park II LLC | Lone Valley Solar Park II LLC | Lucerne Valley, CA | 53 GWh | Nov 2014 | Dec 2025 | Solar |
| Rio Bravo Solar 1 LLC | Duke Energy Renewables Services | McKittrick, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| Rio Bravo Solar II LLC | Duke Energy Renewables Services | McKittrick, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| Wildwood Solar II | Duke Energy Renewables Services | Wasco, CA | 39 GWh | Dec 2016 | Dec 2025 | Solar |
| Lancaster Little Rock | AES Distributed Energy | Landers, CA | 3 GWh | Nov 2014 | Dec 2025 | Solar |
| Merced Solar LLC | Ecos Energy LLC | Merced, CA | 4 GWh | Nov 2014 | Dec 2025 | Solar |
| Mission Solar LLC | Ecos Energy LLC | Merced, CA | 4 GWh | Nov 2014 | Dec 2025 | Solar |
| Hollister Solar LLC | Ecos Energy LLC | Hollister, CA | 4 GWh | Nov 2014 | Dec 2025 | Solar |
| Victor Mesa Linda B2 | AES Distributed Energy | Victorville, CA | 4 GWh | Oct 2014 | Dec 2025 | Solar |
| Victor Mesa Linda C2 | AES Distributed Energy | Victorville, CA | 4 GWh | Oct 2014 | Dec 2025 | Solar |
| Victor Mesa Linda D2 | AES Distributed Energy | Victorville, CA | 4 GWh | Oct 2014 | Dec 2025 | Solar |
| Victor Mesa Linda E2 | AES Distributed Energy | Victorville, CA | 4 GWh | Oct 2014 | Dec 2025 | Solar |
| SEPV Palmdale East | AES Distributed Energy | Palmdale, CA | 24 GWh | Jul 2015 | Dec 2025 | Solar |
| Life Technologies - Pleasanton | Bloom Energy | Pleasanton, CA | 8 GWh | Feb 2013 | Dec 2025 | Natural Gas |
| Kellogg's - San Jose | Bloom Energy | San Jose, CA | 9 GWh | Aug 2013 | Dec 2025 | Natural Gas |
| California PV Energy at ISD WWTP | California PV Energy LLC | Oakley, CA | 2 GWh | Jul 2014 | Dec 2025 | Solar |
| Waste Mangement Redwood LFGTE | WM Renewable Energy LLC | Novato, CA | 22 GWh | Apr 2017 | Dec 2025 | Landfill Gas |
| Hanford 1 and 2 | Arevon Energy, Inc. | Hanford, CA | 5 GWh | Jul 2014 | Dec 2025 | Solar |
| Pumpjack Solar I | Duke Energy Renewables Services | McKittrick, CA | 51 GWh | Dec 2014 | Dec 2025 | Solar |
| City of Soledad Water Reclamation | Foundation HA Energy Generation, LLC | Soledad, CA | 4 GWh | Oct 2014 | Dec 2025 | Wind |
| Taylor Farms | Foundation HA Energy Generation, LLC | Gonzales, CA | 4 GWh | Oct 2014 | Dec 2025 | Wind |
| Catalina Solar 2, LLC | Onward Energy | Rosamond, CA | 55 GWh | Jul 2015 | Dec 2025 | Solar |
| Quinto Solar PV Project | Arevon Energy, Inc. | Gustine, CA | 243 GWh | Oct 2015 | Dec 2025 | Solar |
| SCE-Snowline-Duncan Road (North) | SunEdison LLC | Phelan, CA | 3 GWh | Sep 2014 | Dec 2025 | Solar |
| SCE-Snowline-Duncan Road (South) | SunEdison LLC | Phelan, CA | 2 GWh | Sep 2014 | Dec 2025 | Solar |
| Wildwood Solar I, LLC | Duke Energy Renewables Services | Wasco, CA | 48 GWh | Jan 2015 | Dec 2025 | Solar |
| City of Tulare Water Facility | City of Tulare Water Pollution Control - (CA) | Tulare, CA | 16 GWh | Dec 1990 | Dec 2025 | Natural Gas : 61.0% Other Biomass Gas : 20.1% Solar : 19.0% |
| Diamond Valley Solar Project | Ecos Energy LLC | Winchester, CA | 2 GWh | Dec 2014 | Dec 2025 | Solar |
| Shafter Solar LLC | Shafter Solar LLC | Bakersfield, CA | 41 GWh | Apr 2015 | Dec 2025 | Solar |
| Madelyn Solar, LLC | CD US Solar PO 3, LLC | Silver Lake, CA | 2 GWh | Nov 2014 | Dec 2025 | Solar |
| Rudy Solar, LLC | CD US Solar PO 3, LLC | Silver Lake, CA | 3 GWh | Nov 2014 | Dec 2025 | Solar |
| Mitchell Solar, LLC | CD US Solar PO 3, LLC | Silver Lake, CA | 4 GWh | Nov 2014 | Dec 2025 | Solar |
| Algonquin SKIC20 Solar LLC | Algonquin Power Co | Taft, CA | 41 GWh | Apr 2015 | Dec 2025 | Solar |
| Corcoran Solar 2 | RWE Clean Energy | Corcoran, CA | 47 GWh | Apr 2015 | Dec 2025 | Solar |
| Atwell Island West Solar | RWE Clean Energy | Alpaugh, CA | 52 GWh | Apr 2015 | Dec 2025 | Solar |
| Anaheim Solar Energy Plant | Anaheim Public Utilities | Anaheim, CA | 2 GWh | Jul 2014 | Dec 2025 | Solar |
| SCE-Snowline-White Road (South) | SunEdison LLC | Phelan, CA | 3 GWh | Oct 2014 | Dec 2025 | Solar |
| SCE-Snowline-White Road (North) | SunEdison LLC | Phelan, CA | 3 GWh | Oct 2014 | Dec 2025 | Solar |
| SCE-Snowline-White Rd (Central) | SunEdison LLC | Phelan, CA | 3 GWh | Oct 2014 | Dec 2025 | Solar |
| Baker Creek Hydroelectric | Baker Station Associates, LP | Bridgeville, CA | 3 GWh | Oct 2014 | Dec 2025 | Water |
| Sierra Solar Greenworks | AES Distributed Energy | Lancaster, CA | 41 GWh | Oct 2015 | Dec 2025 | Solar |
| Adelanto Solar II, LLC | Adelanto Solar II, LLC | Adelanto, CA | 18 GWh | Jun 2015 | Dec 2025 | Solar |
| Adelanto Solar, LLC | Adelanto Solar, LLC | Adelanto, CA | 59 GWh | Aug 2015 | Dec 2025 | Solar |
| TA-Acacia, LLC | Onward Energy | Lancaster, CA | 48 GWh | Oct 2014 | Dec 2025 | Solar |
| Bowerman Power LFG, LLC | Bowerman Power LFG, LLC | Irvine, CA | 151 GWh | Mar 2016 | Dec 2025 | Landfill Gas |
| Alamo Solar | Onward Energy | Oro Grande, CA | 49 GWh | Apr 2015 | Dec 2025 | Solar |
| Apple Campus 2 PV | Apple, Inc | Cupertino, CA | 16 GWh | May 2017 | Dec 2025 | Solar |
| Giffen Solar Park | Giffen Solar Park, LLC | Cantua Creek, CA | 20 GWh | May 2017 | Dec 2025 | Solar |
| Five Points Solar Park | Boralex US Operations LLC | Five Points, CA | 81 GWh | Aug 2016 | Dec 2025 | Solar |
| Blackwell Solar Park | RWE Clean Energy | Lost Hills, CA | 39 GWh | Dec 2018 | Dec 2025 | Solar |
| Solar Oasis LLC | Solar Oasis, LLC | Palmdale, CA | 53 GWh | Dec 2015 | Dec 2025 | Solar |
| Coronus Adelanto West 1 | Clean Focus Yield, LLC | Adelanto, CA | 3 GWh | Dec 2014 | Dec 2025 | Solar |
| Coronus Adelanto West 2 | Clean Focus Yield, LLC | Adelanto, CA | 3 GWh | Dec 2014 | Dec 2025 | Solar |
| Park Meridian #1 | Altus Power America Management, LLC | Riverside, CA | 3 GWh | Feb 2015 | Dec 2025 | Solar |
| Rancho Cucamonga Dist #1 | Altus Power America Management, LLC | Rancho Cucamonga, CA | 3 GWh | Mar 2015 | Dec 2025 | Solar |
| Terra Francesco | Altus Power America Management, LLC | Ontario, CA | 2 GWh | Feb 2015 | Dec 2025 | Solar |
| Vega Solar | Vega Solar, LLC | Los Banos, CA | 49 GWh | Feb 2015 | Dec 2025 | Solar |
| Apple Campus 2 Fuel Cell | Apple, Inc | Cupertino, CA | 31 GWh | May 2017 | Dec 2025 | Landfill Gas |
| Colton Solar One, LLC | Colton Solar One, LLC | San Bernardino, CA | 4 GWh | May 2015 | Dec 2025 | Solar |
| Colton Solar Two, LLC | Colton Solar Two, LLC | Colton, CA | 789 MWh | Mar 2015 | Dec 2025 | Solar |
| Tropico Solar PV Plant | Arevon Energy, Inc. | Delano, CA | 32 GWh | Aug 2016 | Dec 2025 | Solar |
| Nicolis Solar PV Plant | Arevon Energy, Inc. | Delano, CA | 46 GWh | Aug 2016 | Dec 2025 | Solar |
| Maricopa West Solar PV, LLC | Onward Energy | Taft, CA | 50 GWh | Nov 2015 | Dec 2025 | Solar |
| AP North Lake I, LP | AP North Lake I, LP | Hemet, CA | 46 GWh | Jul 2015 | Dec 2025 | Solar |
| Kettleman Solar -Centaurus | Boralex US Operations LLC | Kettleman City, CA | 43 GWh | Jun 2015 | Dec 2025 | Solar |
| Coronal Lost Hills | Arevon Energy, Inc. | Lost Hills, CA | 35 GWh | Apr 2015 | Dec 2025 | Solar |
| SPI Anderson 2 | Sierra Pacific Industries | Anderson, CA | 122 GWh | Jul 2015 | Dec 2025 | Wood/Wood Waste Solids : 99.3% Natural Gas : 0.7% |
| Sun Harvest Solar NDP1 | Altus Power America Management, LLC | Dos Palos, CA | 3 GWh | Apr 2015 | Dec 2025 | Solar |
| Cottonwood Solar, LLC Cottonwood Carport | Onward Energy | Novato, CA | 1 GWh | Apr 2016 | Dec 2025 | Solar |
| SEPV 18 | AES Distributed Energy | Palmdale, CA | 4 GWh | Dec 2015 | Dec 2025 | Solar |
| Aspiration G | AES Distributed Energy | Cantua Creek, CA | 21 GWh | Aug 2017 | Dec 2025 | Solar |
| Citizen B | AES Distributed Energy | Mendota, CA | 9 GWh | Nov 2015 | Dec 2025 | Solar |
| Lancaster WAD B | AES Distributed Energy | Lancaster, CA | 7 GWh | Mar 2017 | Dec 2025 | Solar |
| SEPV Mojave West | AES Distributed Energy | Mojave, CA | 53 GWh | May 2016 | Dec 2025 | Solar |
| DSH (CA) - Coalinga State Hospital | Team-Solar, Inc. | Coalinga, CA | 4 GWh | Jun 2014 | Dec 2025 | Solar |
| CDCR (CA) - Pleasant Valley State Prison | Team-Solar, Inc. | Coalinga, CA | 3 GWh | Jun 2014 | Dec 2025 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #25 | Arizona Public Service Company | 25.2 TWh | 100 |
| #54 | Arlington Valley, LLC | 3.2 TWh | 1 |
| #38 | Balancing Authority of Northern California | 13.7 TWh | 90 |
| #49 | Imperial Irrigation District | 6.2 TWh | 66 |
| #29 | Los Angeles Department of Water and Power | 18.8 TWh | 131 |
| #22 | Nevada Power Company | 36.8 TWh | 143 |
| #51 | PUD No. 1 of Douglas County | 4.4 TWh | 4 |
| #19 | Salt River Project Agricultural Improvement and Power District | 60.3 TWh | 49 |
| #57 | Turlock Irrigation District | 1.9 TWh | 11 |
| #40 | Western Area Power Administration - Desert Southwest Region | 10.4 TWh | 34 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #3 | Electric Reliability Council of Texas, Inc. | 494.1 TWh | 1,471 |
| #5 | Southwest Power Pool | 306.8 TWh | 856 |
| #6 | Southern Company Services, Inc. - Trans | 253.5 TWh | 422 |
| #7 | California Independent System Operator | 169.4 TWh | 2,135 |
| #9 | Tennessee Valley Authority | 163.4 TWh | 207 |
| #10 | Florida Power & Light Co. | 152.2 TWh | 187 |
| #12 | New York Independent System Operator | 134.3 TWh | 1,299 |
| #13 | Duke Energy Carolinas | 112.6 TWh | 577 |
| #15 | ISO New England | 111.1 TWh | 1,629 |
| #16 | Bonneville Power Administration | 91.6 TWh | 167 |