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 Authority | California Independent System Operator |
|---|---|
| States | Arizona California Nevada |
| Last Update | Nov 2025 |
| Annual Generation | 188.0 TWh |
| Power Plants | 2,075 |
| Utilities | 965 |
| 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 | 43.1% Solar | 26.4% Water | 11.1% Wind | 10.6% Nuclear | 9.4% |
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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 |
|---|---|---|---|---|---|---|
| SEPV9 Power Plant | Duke Energy Renewables Services | Twentynine Palms, CA | 24 GWh | May 2013 | Dec 2024 | Solar |
| Tahquitz High School | AES Distributed Energy | Hemet, CA | 2 GWh | Aug 2012 | Dec 2024 | Solar |
| Wagner Wind LLC | Greenbacker Renewable Energy Corporation | Palm Springs, CA | 16 GWh | Nov 2012 | Dec 2024 | Wind |
| SEPV 8 | Duke Energy Renewables Services | Twentynine Palms, CA | 33 GWh | May 2013 | Dec 2024 | Solar |
| West Valley High School Solar | AES Distributed Energy | Hemet, CA | 1 GWh | Aug 2012 | Dec 2024 | Solar |
| Venable Solar 1 | Venable Solar, LLC | Blythe, CA | 3 GWh | Mar 2015 | Dec 2024 | Solar |
| Venable Solar 2 | Venable Solar, LLC | Blythe, CA | 3 GWh | Mar 2015 | Dec 2024 | Solar |
| Xilinx San Jose | Bloom Energy | San Jose, CA | 8 GWh | Jan 2012 | Dec 2024 | Natural Gas |
| Juniper Networks Sunnyvale | Bloom Energy | Sunnyvale, CA | 4 GWh | Nov 2012 | Dec 2024 | Natural Gas |
| Life Technologies Carlsbad | Bloom Energy | Carlsbad, CA | 9 GWh | Jul 2012 | Dec 2024 | Natural Gas |
| Kingsburg Solar | Altus Power America Management, LLC | Kingsburg, CA | 6 GWh | Nov 2013 | Dec 2024 | Solar |
| Exeter Solar | Altus Power America Management, LLC | Exeter, CA | 5 GWh | Jan 2014 | Dec 2024 | Solar |
| Ivanhoe Solar | Altus Power America Management, LLC | Visalia, CA | 6 GWh | Dec 2013 | Dec 2024 | Solar |
| Lindsay Solar | Altus Power America Management, LLC | Lindsay, CA | 6 GWh | Dec 2013 | Dec 2024 | Solar |
| Porterville Solar | Altus Power America Management, LLC | Porterville, CA | 6 GWh | Dec 2013 | Dec 2024 | Solar |
| G2 Energy Hay Rd | G2 Energy LLC | Vacaville, CA | 12 GWh | May 2013 | Dec 2024 | Landfill Gas |
| Radiance Solar 4 | Greenbacker Renewable Energy Corporation | Lancaster, CA | 3 GWh | Jun 2013 | Dec 2024 | Solar |
| Radiance Solar 5 | Greenbacker Renewable Energy Corporation | Lancaster, CA | 3 GWh | Jun 2013 | Dec 2024 | Solar |
| Atwell Island | SPS Atwell Island LLC | Alpaugh, CA | 33 GWh | Feb 2013 | Dec 2024 | Solar |
| Gridley Main | Altus Power America Management, LLC | Gridley, CA | 2 GWh | Feb 2013 | Dec 2024 | Solar |
| Gridley Main Two | Altus Power America Management, LLC | Gridley, CA | 3 GWh | Mar 2013 | Dec 2024 | Solar |
| White River Solar | Consolidated Edison Development Inc. | Alpaugh, CA | 44 GWh | Jun 2013 | Dec 2024 | Solar |
| Corcoran Solar | Consolidated Edison Development Inc. | Corcoran, CA | 35 GWh | Jul 2013 | Dec 2024 | Solar |
| Oakley Solar Project | Oakley Solar Project LLC | Oakley, CA | 2 GWh | May 2013 | Dec 2024 | Solar |
| Cold Canyon 1 | Toro Energy of California SLO | San Luis Obispo, CA | 4 GWh | Jun 2013 | Dec 2024 | Landfill Gas |
| Alta Wind X | Alta Wind X, LLC | Mojave, CA | 379 GWh | Dec 2013 | Dec 2024 | Wind |
| Alta Wind XI | Alta Wind XI, LLC | Mojave, CA | 269 GWh | Dec 2013 | Dec 2024 | Wind |
| Ameresco Johnson Canyon | Ameresco Johnson Canyon LLC | Gonzales, CA | 9 GWh | Apr 2013 | Dec 2024 | Landfill Gas |
| Lone Valley Solar Park I LLC | Lone Valley Solar Park I LLC | Lucerne Valley, CA | 24 GWh | Nov 2014 | Dec 2024 | Solar |
| Victor Dry Farm Ranch A | AES Distributed Energy | Victorville, CA | 10 GWh | May 2015 | Dec 2024 | Solar |
| Victor Dry Farm Ranch B | AES Distributed Energy | Victorville, CA | 10 GWh | May 2015 | Dec 2024 | Solar |
| Centinela Solar Energy | Arevon Energy, Inc. | Calexico, CA | 353 GWh | Jun 2013 | Dec 2024 | Solar |
| Glass House Camarillo Cultivation | Glass House Camarillo Cultivation | Camarillo, CA | 78 GWh | Jul 2012 | Dec 2024 | Natural Gas |
| Ameresco Vasco Road | Ameresco Vasco Road, LLC | Livermore, CA | 32 GWh | Feb 2013 | Dec 2024 | Landfill Gas |
| Ameresco San Joaquin | Ameresco San Joaquin, LLC | Linden, CA | 31 GWh | Mar 2014 | Dec 2024 | Landfill Gas |
| Ameresco Forward | Ameresco Forward, LLC | Manteca, CA | 32 GWh | Jan 2014 | Dec 2024 | Landfill Gas |
| Arrache 4006 | CD US Solar MT 2 LLC | Palmdale, CA | 2 GWh | Jul 2013 | Dec 2024 | Solar |
| Arrache 4013 | CD US Solar MT 2 LLC | Palmdale, CA | 3 GWh | Jul 2013 | Dec 2024 | Solar |
| Arrache 8083 | CD US Solar MT 2 LLC | Palmdale, CA | 3 GWh | Aug 2013 | Dec 2024 | Solar |
| Nunn | CD US Solar MT 2 LLC | Apple Valley, CA | 2 GWh | Jun 2013 | Dec 2024 | Solar |
| Rutan | CD US Solar MT 2 LLC | Palmdale, CA | 4 GWh | Dec 2013 | Dec 2024 | Solar |
| Vinam | CD US Solar MT 2 LLC | Lancaster, CA | 3 GWh | Jun 2013 | Dec 2024 | Solar |
| Ma | CD US Solar MT 2 LLC | Lancaster, CA | 2 GWh | Sep 2013 | Dec 2024 | Solar |
| Horn | CD US Solar MT 2 LLC | Lancaster, CA | 3 GWh | Sep 2013 | Dec 2024 | Solar |
| Watts 3115 | CD US Solar MT 2 LLC | Adelanto, CA | 4 GWh | Jul 2013 | Dec 2024 | Solar |
| McCoy Solar Energy Project Hybrid | McCoy Solar, LLC | Blythe, CA | 647 GWh | Jul 2015 | Dec 2024 | Solar |
| Campo Verde Solar | Southern Power Co | El Centro, CA | 295 GWh | Sep 2013 | Dec 2024 | Solar |
| RE Rosamond One LLC | MN8 Energy LLC | Rosamond, CA | 52 GWh | Dec 2013 | Dec 2024 | Solar |
| RE Rosamond Two LLC | MN8 Energy LLC | Rosamond, CA | 48 GWh | Dec 2013 | Dec 2024 | Solar |
| RE Rio Grande Solar LLC | MN8 Energy LLC | Mojave, CA | 11 GWh | Nov 2013 | Dec 2024 | Solar |
| RE Columbia 3 LLC | MN8 Energy LLC | Mojave, CA | 24 GWh | Dec 2013 | Dec 2024 | Solar |
| Chuckawalla Solar | Altus Power America Management, LLC | Blythe, CA | 7 GWh | May 2012 | Dec 2024 | Solar |
| Bear Creek Solar (CA) | Ecos Energy LLC | Lodi, CA | 4 GWh | Jan 2014 | Dec 2024 | Solar |
| Vintner Solar | Ecos Energy LLC | Templeton, CA | 4 GWh | Mar 2014 | Dec 2024 | Solar |
| Kettleman Solar Project | Ecos Energy LLC | Lodi, CA | 3 GWh | Mar 2014 | Dec 2024 | Solar |
| Ironwood Solar LLC | Altus Power America Management, LLC | Blythe, CA | 7 GWh | Mar 2012 | Dec 2024 | Solar |
| Madera Community Hospital | CleanCapital Holdings | Madera, CA | 72 MWh | Sep 2011 | Dec 2024 | Solar |
| City of Hayward WWTP | City of Hayward | Hayward, CA | 11 GWh | Oct 2010 | Dec 2024 | Other Biomass Gas : 60.4% Solar : 27.7% Natural Gas : 12.0% |
| Garnet Solar Generation Station I LLC | Garnet Solar Generation Station I LLC | Palm Springs, CA | 9 GWh | Nov 2014 | Dec 2024 | Solar |
| Desert Sunlight 250, LLC | NextEra Energy Desert Sunlight 250, LLC | Desert Center, CA | 556 GWh | Oct 2013 | Dec 2024 | Solar |
| Sonora 1 | Greenbacker Renewable Energy Corporation | Jamestown, CA | 621 MWh | Nov 2013 | Dec 2024 | Solar |
| Oltmans SCE at Champagne | California PV Energy LLC | Ontario, CA | 2 GWh | Nov 2013 | Dec 2024 | Solar |
| Oltmans SCE at Jurupa | California PV Energy LLC | Ontario, CA | 2 GWh | Nov 2013 | Dec 2024 | Solar |
| Sierra Nevada Brewing Co Hybrid | Sierra Nevada Brewing Co | Chico, CA | 10 GWh | Apr 2005 | Dec 2024 | Natural Gas : 76.8% Solar : 21.6% Other Biomass Gas : 1.6% |
| Cascade Solar | Cascade Solar LLC | Joshua Tree, CA | 51 GWh | Dec 2013 | Dec 2024 | Solar |
| Solar Gen 2 Solar Facility | Southern Power Co | Calipatria, CA | 364 GWh | Oct 2014 | Dec 2024 | Solar |
| One Market Plaza | Paramount Group Inc | San Francisco, CA | 177 MWh | Nov 2003 | Dec 2024 | Natural Gas |
| Industry Solar Power Generation Station | AES Distributed Energy | Adelanto, CA | 4 GWh | Nov 2013 | Dec 2024 | Solar |
| Navajo Solar Power Generation Station 1 | AES Distributed Energy | Apple Valley, CA | 4 GWh | Nov 2013 | Dec 2024 | Solar |
| Powhatan Solar Power Generation Station | AES Distributed Energy | Apple Valley, CA | 3 GWh | Nov 2013 | Dec 2024 | Solar |
| Otoe Solar Power Generation Station 1 LL | AES Distributed Energy | Apple Valley, CA | 3 GWh | Nov 2013 | Dec 2024 | Solar |
| Westlands Solar PV Farm | Boralex US Operations LLC | Huron, CA | 34 GWh | Jan 2014 | Dec 2024 | Solar |
| Western Antelope Blue Sky Ranch A | AES Distributed Energy | Lancaster, CA | 45 GWh | Oct 2014 | Dec 2024 | Solar |
| Western Antelope Dry Ranch | AES Distributed Energy | Lancaster, CA | 22 GWh | Nov 2016 | Dec 2024 | Solar |
| Monterey Regional Water Pollution Contro | Tesla Inc. | Marina, CA | 1 GWh | Nov 2010 | Dec 2024 | Solar |
| Lancaster Baptist Church | Tesla Inc. | Lancaster, CA | 1 GWh | Nov 2011 | Dec 2024 | Solar |
| Tulare 1 and 2 | Arevon Energy, Inc. | Tulare, CA | 5 GWh | Dec 2013 | Dec 2024 | Solar |
| Stateline Solar | Southern Power Co | Nipton, CA | 620 GWh | Nov 2015 | Dec 2024 | Solar |
| Mira Loma | Costco Wholesale | Mira Loma, CA | 2 GWh | Oct 2011 | Dec 2024 | Solar |
| ABEC Bidart-Old River LLC | ABEC Bidart-Old River LLC | Bakersfield, CA | 16 GWh | Nov 2013 | Dec 2024 | Other Biomass Gas |
| Lost Hills/Blackwell | Southern Power Co | Lost Hills, CA | 81 GWh | Mar 2015 | Dec 2024 | Solar |
| North Star Solar | Southern Power Co | Mendota, CA | 132 GWh | May 2015 | Dec 2024 | Solar |
| Orion Solar I | Orion Solar I LLC | Arvin, CA | 28 GWh | Mar 2014 | Dec 2024 | Solar |
| Orion Solar II | Orion Solar II, LLC | Arvin, CA | 19 GWh | May 2014 | Dec 2024 | Solar |
| North Bay Solar 1 | AES Distributed Energy | Fairfield, CA | 2 GWh | Jul 2013 | Dec 2024 | Solar |
| Lancaster Dry Farm Ranch B | AES Distributed Energy | Lancaster, CA | 8 GWh | Oct 2014 | Dec 2024 | Solar |
| Rodeo Solar C2 | AES Distributed Energy | Lancaster, CA | 3 GWh | Apr 2014 | Dec 2024 | Solar |
| Rodeo Solar D2 | AES Distributed Energy | Lancaster, CA | 3 GWh | Apr 2014 | Dec 2024 | Solar |
| Summer Solar A2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2024 | Solar |
| Summer Solar B2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2024 | Solar |
| Summer Solar C2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2024 | Solar |
| Summer Solar D2 | AES Distributed Energy | Lancaster, CA | 2 GWh | Jun 2014 | Dec 2024 | Solar |
| Summer North Solar | AES Distributed Energy | Lancaster, CA | 10 GWh | Nov 2014 | Dec 2024 | Solar |
| Expressway Solar A | AES Distributed Energy | Victorville, CA | 5 GWh | Apr 2014 | Dec 2024 | Solar |
| Expressway Solar B | AES Distributed Energy | Victorville, CA | 4 GWh | Apr 2014 | Dec 2024 | Solar |
| Expressway Solar C2 | AES Distributed Energy | Victorville, CA | 3 GWh | Oct 2014 | Dec 2024 | Solar |
| Shasta Solar Farm | Ignite Solar Holdings LLC | Fall River Mills, CA | 6 GWh | Feb 2014 | Dec 2024 | Solar |
| Redcrest Solar Farm | AES Distributed Energy | Edison, CA | 25 GWh | Sep 2015 | Dec 2024 | Solar |
| ASTI | Perpetual Energy Systems | Cloverdale, CA | 1 GWh | Jan 2009 | Dec 2024 | Solar |
| Beringer | Perpetual Energy Systems | Saint Helena, CA | 1 GWh | Dec 2008 | Dec 2024 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #26 | Arizona Public Service Company | 23.9 TWh | 92 |
| #54 | Arlington Valley, LLC | 3.4 TWh | 1 |
| #36 | Balancing Authority of Northern California | 14.7 TWh | 87 |
| #47 | Imperial Irrigation District | 6.3 TWh | 66 |
| #29 | Los Angeles Department of Water and Power | 18.9 TWh | 124 |
| #22 | Nevada Power Company | 37.2 TWh | 139 |
| #60 | New Harquahala Generating Company, LLC | 764.0 GWh | 1 |
| #19 | Salt River Project Agricultural Improvement and Power District | 60.0 TWh | 48 |
| #56 | Turlock Irrigation District | 2.1 TWh | 11 |
| #39 | Western Area Power Administration - Desert Southwest Region | 9.8 TWh | 33 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #4 | Electric Reliability Council of Texas, Inc. | 485.0 TWh | 1,313 |
| #5 | Southwest Power Pool | 299.9 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #7 | California Independent System Operator | 188.0 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 161.6 TWh | 204 |
| #10 | Florida Power & Light Co. | 148.9 TWh | 187 |
| #12 | New York Independent System Operator | 131.6 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.5 TWh | 565 |
| #15 | ISO New England | 105.5 TWh | 1,577 |
| #16 | Bonneville Power Administration | 80.5 TWh | 163 |