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 |
|---|---|---|---|---|---|---|
| Chuckawalla Solar | Altus Power America Management, LLC | Blythe, CA | 7 GWh | May 2012 | Dec 2025 | Solar |
| Vintner Solar | Ecos Energy LLC | Templeton, CA | 4 GWh | Mar 2014 | Dec 2025 | Solar |
| Kettleman Solar Project | Ecos Energy LLC | Lodi, CA | 3 GWh | Mar 2014 | Dec 2025 | Solar |
| Ironwood Solar LLC | Altus Power America Management, LLC | Blythe, CA | 7 GWh | Mar 2012 | Dec 2025 | Solar |
| Desert Hot Springs Solar | RWE Clean Energy | Desert Hot Springs, CA | 3 GWh | Nov 2013 | Dec 2025 | Solar |
| Madera Community Hospital | CleanCapital Holdings | Madera, CA | 2 GWh | Sep 2011 | Dec 2025 | Solar |
| City of Hayward WWTP | City of Hayward (CA) | Hayward, CA | 11 GWh | Oct 2010 | Dec 2025 | Other Biomass Gas : 72.3% Solar : 23.6% Natural Gas : 4.1% |
| Desert Sunlight 250, LLC | NextEra Energy Desert Sunlight 250, LLC | Desert Center, CA | 517 GWh | Oct 2013 | Dec 2025 | Solar |
| Sonora 1 | CleanCapital Holdings | Jamestown, CA | 858 MWh | Nov 2013 | Dec 2025 | Solar |
| Oltmans SCE at Champagne | California PV Energy LLC | Ontario, CA | 2 GWh | Nov 2013 | Dec 2025 | Solar |
| Oltmans SCE at Jurupa | California PV Energy LLC | Ontario, CA | 2 GWh | Nov 2013 | Dec 2025 | Solar |
| Sierra Nevada Brewing Co Hybrid | Sierra Nevada Brewing Co | Chico, CA | 11 GWh | Apr 2005 | Dec 2025 | Natural Gas : 65.7% Solar : 19.5% Other Biomass Gas : 14.9% |
| Cascade Solar | Cascade Solar LLC | Joshua Tree, CA | 51 GWh | Dec 2013 | Dec 2025 | Solar |
| Solar Gen 2 Solar Facility | Southern Power Co | Calipatria, CA | 377 GWh | Oct 2014 | Dec 2025 | Solar |
| One Market Plaza | Paramount Group Inc | San Francisco, CA | 1 GWh | Nov 2003 | Dec 2025 | Natural Gas |
| Industry Solar Power Generation Station | AES Distributed Energy | Adelanto, CA | 4 GWh | Nov 2013 | Dec 2025 | Solar |
| Navajo Solar Power Generation Station 1 | AES Distributed Energy | Apple Valley, CA | 4 GWh | Nov 2013 | Dec 2025 | Solar |
| Powhatan Solar Power Generation Station | AES Distributed Energy | Apple Valley, CA | 4 GWh | Nov 2013 | Dec 2025 | Solar |
| Otoe Solar Power Generation Station 1 LL | AES Distributed Energy | Apple Valley, CA | 3 GWh | Nov 2013 | Dec 2025 | Solar |
| Westlands Solar PV Farm | Boralex US Operations LLC | Huron, CA | 39 GWh | Jan 2014 | Dec 2025 | Solar |
| Transamerica Pyramid | Transamerica Pyramid Properties LLC | San Francisco, CA | 4 MWh | Jun 2007 | Dec 2025 | Natural Gas |
| Western Antelope Blue Sky Ranch A | AES Distributed Energy | Lancaster, CA | 43 GWh | Oct 2014 | Dec 2025 | Solar |
| Western Antelope Dry Ranch | AES Distributed Energy | Lancaster, CA | 26 GWh | Nov 2016 | Dec 2025 | Solar |
| Monterey Regional Water Pollution Contro | Tesla Inc. | Marina, CA | 1 GWh | Nov 2010 | Dec 2025 | Solar |
| Lancaster Baptist Church | Tesla Inc. | Lancaster, CA | 1 GWh | Nov 2011 | Dec 2025 | Solar |
| Tulare 1 and 2 | Arevon Energy, Inc. | Tulare, CA | 5 GWh | Dec 2013 | Dec 2025 | Solar |
| Stateline Solar | Southern Power Co | Nipton, CA | 640 GWh | Nov 2015 | Dec 2025 | Solar |
| Mira Loma | Costco Wholesale | Mira Loma, CA | 2 GWh | Oct 2011 | Dec 2025 | Solar |
| ABEC Bidart-Old River LLC | ABEC Bidart-Old River LLC | Bakersfield, CA | 16 GWh | Nov 2013 | Dec 2025 | Other Biomass Gas |
| Lost Hills/Blackwell | Southern Power Co | Lost Hills, CA | 59 GWh | Mar 2015 | Dec 2025 | Solar |
| North Star Solar | Southern Power Co | Mendota, CA | 133 GWh | May 2015 | Dec 2025 | Solar |
| Orion Solar I | Orion Solar I LLC | Arvin, CA | 27 GWh | Mar 2014 | Dec 2025 | Solar |
| Orion Solar II | Orion Solar II, LLC | Arvin, CA | 16 GWh | May 2014 | Dec 2025 | Solar |
| North Bay Solar 1 | AES Distributed Energy | Fairfield, CA | 2 GWh | Jul 2013 | Dec 2025 | Solar |
| Lancaster Dry Farm Ranch B | AES Distributed Energy | Lancaster, CA | 10 GWh | Oct 2014 | Dec 2025 | Solar |
| Rodeo Solar C2 | AES Distributed Energy | Lancaster, CA | 4 GWh | Apr 2014 | Dec 2025 | Solar |
| Rodeo Solar D2 | AES Distributed Energy | Lancaster, CA | 3 GWh | Apr 2014 | Dec 2025 | Solar |
| Summer Solar A2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2025 | Solar |
| Summer Solar B2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2025 | Solar |
| Summer Solar C2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2025 | Solar |
| Summer Solar D2 | AES Distributed Energy | Lancaster, CA | 2 GWh | Jun 2014 | Dec 2025 | Solar |
| Summer North Solar | AES Distributed Energy | Lancaster, CA | 13 GWh | Nov 2014 | Dec 2025 | Solar |
| Expressway Solar A | AES Distributed Energy | Victorville, CA | 5 GWh | Apr 2014 | Dec 2025 | Solar |
| Expressway Solar B | AES Distributed Energy | Victorville, CA | 4 GWh | Apr 2014 | Dec 2025 | Solar |
| Expressway Solar C2 | AES Distributed Energy | Victorville, CA | 3 GWh | Oct 2014 | Dec 2025 | Solar |
| Shasta Solar Farm | Ignite Solar Holdings LLC | Fall River Mills, CA | 6 GWh | Feb 2014 | Dec 2025 | Solar |
| Redcrest Solar Farm | AES Distributed Energy | Edison, CA | 34 GWh | Sep 2015 | Dec 2025 | Solar |
| ASTI | SunStrong Management, LLC | Cloverdale, CA | 1 GWh | Jan 2009 | Dec 2025 | Solar |
| Beringer | SunStrong Management, LLC | Saint Helena, CA | 2 GWh | Dec 2008 | Dec 2025 | Solar |
| Valley Center 1 | MN8 Energy LLC | Valley Center, CA | 4 GWh | Nov 2013 | Dec 2025 | Solar |
| Valley Center 2 | MN8 Energy LLC | Valley Center, CA | 8 GWh | Nov 2013 | Dec 2025 | Solar |
| Ramona 1 | MN8 Energy LLC | Ramona, CA | 3 GWh | Nov 2013 | Dec 2025 | Solar |
| Ramona 2 | MN8 Energy LLC | Ramona, CA | 9 GWh | Nov 2013 | Dec 2025 | Solar |
| Santa Fe Springs Rooftop Solar BLDG M | Golden Springs Development Company LLC | Santa Fe Springs, CA | 3 GWh | Feb 2015 | Dec 2025 | Solar |
| Santa Fe Springs Rooftop Solar BLDG H | Golden Springs Development Company LLC | Santa Fe Springs, CA | 2 GWh | Feb 2015 | Dec 2025 | Solar |
| Cloverdale Solar I | Altus Power America Management, LLC | Cloverdale, CA | 1 GWh | May 2014 | Dec 2025 | Solar |
| Laguna Water Reclamation Facility | City of Santa Rosa - (CA) | Santa Rosa, CA | 9 GWh | Feb 2013 | Dec 2025 | Other Biomass Gas : 83.6% Natural Gas : 16.4% |
| Las Virgenes Municipal Water District | Tesla Inc. | Calabasas, CA | 1 GWh | Jan 2014 | Dec 2025 | Solar |
| White River Solar 2 | RWE Clean Energy | Alpaugh, CA | 49 GWh | Aug 2014 | Dec 2025 | Solar |
| Henrietta Solar Project | Southern Power Co | Lemoore, CA | 170 GWh | Jul 2016 | Dec 2025 | Solar |
| RE Camelot LLC | Onward Energy | Mojave, CA | 121 GWh | Nov 2014 | Dec 2025 | Solar |
| RE Adams East, LLC | Onward Energy | Fresno, CA | 41 GWh | Nov 2014 | Dec 2025 | Solar |
| RE Kansas Solar, LLC | Onward Energy | Lemoore, CA | 24 GWh | Nov 2014 | Dec 2025 | Solar |
| RE Old River One, LLC | Onward Energy | Bakersfield, CA | 38 GWh | Nov 2014 | Dec 2025 | Solar |
| RE Columbia Two, LLC | Onward Energy | Mojave, CA | 41 GWh | Nov 2014 | Dec 2025 | Solar |
| 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 |
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 |