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 |
| Last Update | Jun 2026 |
| Annual Generation | 173.0 TWh |
| Power Plants | 2,075 |
| Utilities | 965 |
| Ranked #7 out of 64 in terms of net annual generation | |
| Ranked #10 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 36.2% Solar | 29.3% Water | 12.2% Wind | 10.8% Nuclear | 10.8% |
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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 |
|---|---|---|---|---|---|---|
| Coso Power Developers | Coso Operating Co LLC | Inyokern, CA | 312 GWh | Oct 1989 | Mar 2026 | Geothermal |
| Bowerman Power LFG, LLC | Bowerman Power LFG, LLC | Irvine, CA | 154 GWh | Mar 2016 | Dec 2024 | Landfill Gas |
| B Braun Medical | B Braun Medical Inc | Irvine, CA | 33 GWh | Oct 1982 | Dec 2024 | Natural Gas |
| UCI Facilities Management Central Plant | University of California Irvine | Irvine, CA | 113 GWh | Jun 2007 | Mar 2026 | Natural Gas |
| ATT Kelvin | Bloom Energy | Irvine, CA | 8 GWh | Mar 2017 | Dec 2024 | Natural Gas |
| Irwindale Brew Yard, LLC | Irwindale Brew Yard, LLC | Irwindale, CA | 517 MWh | Jan 2002 | Apr 2025 | Solar : 99.8% |
| Electra | Pacific Gas & Electric Co. | Jackson, CA | 288 GWh | May 1948 | Mar 2026 | Water |
| Jacumba Solar Farm | Invenergy Services LLC | Jacumba, CA | 48 GWh | Jun 2017 | Dec 2024 | Solar |
| Pacific-Ultrapower Chinese Station | IHI Power Services Corp | Jamestown, CA | 108 GWh | Sep 1986 | Mar 2026 | Wood/Wood Waste Solids : 99.4% Gaseous Propane : 0.6% |
| Sonora 1 | Greenbacker Renewable Energy Corporation | Jamestown, CA | 621 MWh | Nov 2013 | Dec 2024 | Solar |
| Tulloch | Oakdale&South San Joaquin Irrigation D. | Jamestown, CA | 104 GWh | May 1958 | Dec 2024 | Water |
| Cascade Solar | Cascade Solar LLC | Joshua Tree, CA | 51 GWh | Dec 2013 | Dec 2024 | Solar |
| Rush Creek | Southern California Edison Co | June lake, CA | 43 GWh | Sep 1916 | Dec 2024 | Water |
| CA Jurupa Valley 3251 De Forest Circle | Catalyze Mira Loma 3251 De Forest Circle Microgrid LLC | Jurupa Valley, CA | 5 GWh | Mar 2024 | Dec 2024 | Solar |
| Dulles | Golden Springs Development Company LLC | Jurupa Valley, CA | 2 GWh | Aug 2016 | Dec 2024 | Solar |
| Kern River 3 | Southern California Edison Co | Kernville, CA | 143 GWh | Feb 1921 | Dec 2024 | Water |
| Kettleman Solar -Centaurus | Boralex US Operations LLC | Kettleman City, CA | 41 GWh | Jun 2015 | Dec 2024 | Solar |
| Blackjack Solar | South County Packing | King City, CA | 9 GWh | Nov 2020 | Dec 2024 | Solar |
| King City Power Plant | Calpine King City Cogen LLC | King City, CA | 27 GWh | Jan 1989 | Mar 2026 | Natural Gas |
| King City Peaking | Calpine Corp-King City | King City, CA | 12 GWh | Mar 2002 | Dec 2024 | Natural Gas |
| Kingsburg Cogen | KES Kingsburg LP | Kingsburg, CA | 11 GWh | Nov 1990 | Nov 2024 | Natural Gas |
| Kingsburg Solar | Altus Power America Management, LLC | Kingsburg, CA | 6 GWh | Nov 2013 | Dec 2024 | Solar |
| Kroger La Habra | Ralph's Grocery Company | La Habra, CA | 2 GWh | Mar 2020 | Dec 2024 | Solar |
| University of California San Diego Hybri | University of California San Diego | La Jolla, CA | 210 GWh | Jun 2001 | Mar 2026 | Natural Gas |
| Univ of California San Diego Solar | University of California San Diego | La Jolla, CA | 2 GWh | Nov 2008 | Dec 2024 | Solar |
| Grossmont Hospital | Sharp Grossmont Hospital | La Mesa, CA | 25 GWh | Jul 1983 | Dec 2024 | Natural Gas |
| PFMG Solar Grossmont Helix LLC | Altus Power America Management, LLC | La Mesa, CA | 2 GWh | Apr 2018 | Dec 2024 | Solar |
| Biola University Hybrid | Biola University | La Mirada, CA | 13 GWh | Mar 1990 | Mar 2026 | Natural Gas |
| Staples La Mirada, CA | SunE WF3-ST Holdings, LLC | La Mirada, CA | 871 MWh | Feb 2009 | Dec 2024 | Solar |
| Weymouth Solar Plant | Metropolitan Water District of S CA | La Verne, CA | 5 GWh | May 2016 | Dec 2024 | Solar |
| Gilead Sciences La Verne Rooftop Solar | Gilead Sciences, Inc. - La Verne | La Verne, CA | 3 GWh | Jun 2021 | Dec 2024 | Solar |
| Lake Elsinore Canopies - Lakeside HS | Standard Solar | Lake Elsinore, CA | 2 GWh | Feb 2022 | Dec 2024 | Solar |
| Isabella Hydro Project | Isabella Partners | Lake Isabella, CA | 43 GWh | Nov 1990 | Dec 2024 | Water |
| MM Lopez Energy | MM Lopez Energy LLC | Lake View Terrace, CA | 25 GWh | Nov 1998 | Dec 2024 | Landfill Gas |
| Portal | Southern California Edison Co | Lakeshore, CA | 19 GWh | Nov 1956 | Dec 2024 | Water |
| Division 3 | Tesla Inc. | Lancaster, CA | 458 MWh | May 2014 | Dec 2024 | Solar |
| Summer Solar D2 | AES Distributed Energy | Lancaster, CA | 2 GWh | Jun 2014 | Dec 2024 | Solar |
| Western Antelope Dry Ranch | AES Distributed Energy | Lancaster, CA | 22 GWh | Nov 2016 | Dec 2024 | Solar |
| TA-Acacia, LLC | Onward Energy | Lancaster, CA | 52 GWh | Oct 2014 | Dec 2024 | Solar |
| Summer North Solar | AES Distributed Energy | Lancaster, CA | 10 GWh | Nov 2014 | Dec 2024 | Solar |
| Kettering Solar 2 | Tesla Inc. | Lancaster, CA | 2 GWh | May 2014 | Dec 2024 | Solar |
| Kettering Solar 1 | Tesla Inc. | Lancaster, CA | 2 GWh | May 2014 | Dec 2024 | Solar |
| Ma | CD US Solar MT 2 LLC | Lancaster, CA | 2 GWh | Sep 2013 | Dec 2024 | Solar |
| Division 2 | Tesla Inc. | Lancaster, CA | 541 MWh | May 2014 | Dec 2024 | Solar |
| Division 1 | Tesla Inc. | Lancaster, CA | 3 GWh | May 2014 | Dec 2024 | Solar |
| Summer Solar C2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2024 | Solar |
| Lancaster Baptist Church | Tesla Inc. | Lancaster, CA | 1 GWh | Nov 2011 | Dec 2024 | Solar |
| Lancaster Solar 1 | Boralex US Operations LLC | Lancaster, CA | 2 GWh | Oct 2014 | Dec 2024 | Solar |
| AV Solar Ranch One | AV Solar Ranch 1 LLC | Lancaster, CA | 564 GWh | Jul 2014 | Mar 2026 | Solar |
| Sierra Solar Greenworks | AES Distributed Energy | Lancaster, CA | 39 GWh | Oct 2015 | Dec 2024 | Solar |
| Lancaster Solar 2 | Boralex US Operations LLC | Lancaster, CA | 3 GWh | Oct 2014 | Dec 2024 | Solar |
| Lancaster Dry Farm Ranch B | AES Distributed Energy | Lancaster, CA | 8 GWh | Oct 2014 | Dec 2024 | Solar |
| Radiance Solar 4 | Greenbacker Renewable Energy Corporation | Lancaster, CA | 3 GWh | Jun 2013 | Dec 2024 | Solar |
| Rodeo Solar C2 | AES Distributed Energy | Lancaster, CA | 3 GWh | Apr 2014 | Dec 2024 | Solar |
| Radiance Solar 5 | Greenbacker Renewable Energy Corporation | Lancaster, CA | 3 GWh | Jun 2013 | Dec 2024 | Solar |
| TA-High Desert LLC | TA-High Desert LLC | Lancaster, CA | 57 GWh | Feb 2013 | Dec 2024 | Solar |
| Western Antelope Blue Sky Ranch A | AES Distributed Energy | Lancaster, CA | 45 GWh | Oct 2014 | Dec 2024 | Solar |
| Alpine Solar | Alpine BESS LLC | Lancaster, CA | 119 GWh | Jan 2013 | 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 |
| Vinam | CD US Solar MT 2 LLC | Lancaster, CA | 3 GWh | Jun 2013 | Dec 2024 | Solar |
| Summer Solar B2 | AES Distributed Energy | Lancaster, CA | 3 GWh | May 2014 | Dec 2024 | Solar |
| Horn | CD US Solar MT 2 LLC | Lancaster, CA | 3 GWh | Sep 2013 | Dec 2024 | Solar |
| SEPV Sierra | SEPV Sierra, LLC | Lancaster, CA | 5 GWh | Mar 2020 | Dec 2024 | Solar |
| Antelope DSR 3 | AES Distributed Energy | Lancaster, CA | 58 GWh | Aug 2019 | Dec 2024 | Solar |
| Raceway Solar & Storage | AES Clean Energy | Lancaster, CA | 364 GWh | Apr 2024 | Mar 2026 | Solar |
| US-TOPCO (Soccer Center) | Tesla Inc. | Lancaster, CA | 7 GWh | Nov 2016 | Dec 2024 | Solar |
| AVS Lancaster 1 | Tesla Inc. | Lancaster, CA | 9 GWh | Nov 2016 | Dec 2024 | Solar |
| Lancaster WAD B | AES Distributed Energy | Lancaster, CA | 7 GWh | Mar 2017 | Dec 2024 | Solar |
| Elevation Solar C | AES Distributed Energy | Lancaster, CA | 105 GWh | Nov 2016 | Mar 2026 | Solar |
| Antelope DSR 1 | AES Distributed Energy | Lancaster, CA | 120 GWh | Nov 2016 | Mar 2026 | Solar |
| Morgan Lancaster 1 | Terraform Arcadia | Lancaster, CA | 796 MWh | Aug 2015 | Dec 2024 | Solar |
| CSP Los Angeles | Ecoplexus, Inc | Lancaster, CA | 6 GWh | Sep 2022 | Dec 2024 | Solar |
| Western Antelope Blue Sky B | AES Distributed Energy | Lancaster, CA | 50 GWh | Nov 2016 | Dec 2024 | Solar |
| Antelope DSR 2 | AES Distributed Energy | Lancaster, CA | 12 GWh | Nov 2016 | Dec 2024 | Solar |
| North Lancaster Ranch | AES Distributed Energy | Lancaster, CA | 37 GWh | Nov 2016 | Dec 2024 | Solar |
| Solverde 1 | AES Distributed Energy | Lancaster, CA | 202 GWh | Nov 2016 | Mar 2026 | Solar |
| Central Antelope Dry Ranch C | AES Distributed Energy | Lancaster, CA | 33 GWh | Apr 2016 | Dec 2024 | Solar |
| Antelope Expansion 3A | AES Distributed Energy | Lancaster, CA | 32 GWh | May 2021 | Dec 2024 | Solar |
| Bayshore Solar B, LLC | AES Distributed Energy | Lancaster, CA | 45 GWh | Nov 2017 | Dec 2024 | Solar |
| Bayshore Solar C, LLC | AES Distributed Energy | Lancaster, CA | 41 GWh | Nov 2017 | Dec 2024 | Solar |
| Antelope Expansion 1B | AES Distributed Energy | Lancaster, CA | 45 GWh | Oct 2022 | Dec 2024 | Solar |
| Bayshore Solar A, LLC | AES Distributed Energy | Lancaster, CA | 46 GWh | Nov 2017 | Dec 2024 | Solar |
| Lancaster | Clean Focus Yield, LLC | Lancaster, CA | 8 GWh | Oct 2018 | Dec 2024 | Solar |
| Portal Ridge Solar C, LLC | Portal Ridge Solar, LLC | Lancaster, CA | 25 GWh | Jan 2017 | Dec 2024 | Solar |
| Antelope Expansion 2 | AES Distributed Energy | Lancaster, CA | 250 GWh | Nov 2018 | Mar 2026 | Solar |
| Antelope Big Sky Ranch | AES Distributed Energy | Lancaster, CA | 54 GWh | Jul 2016 | Dec 2024 | Solar |
| Antelope Expansion 3B | AES Distributed Energy | Lancaster, CA | 11 GWh | May 2021 | Dec 2024 | Solar |
| Portal Ridge Solar B, LLC | Portal Ridge Solar, LLC | Lancaster, CA | 47 GWh | Jan 2017 | Dec 2024 | Solar |
| Gaskell West 1 Solar Facility | Southern Power Co | Lancaster, CA | 53 GWh | Feb 2018 | Dec 2024 | Solar |
| Foundation CDCR LAC | Foundation CA Fund VIII Manager, LLC | Lancaster, CA | 5 GWh | Nov 2017 | Dec 2024 | Wind |
| Estrella Solar & Storage | AES Clean Energy | Lancaster, CA | 156 GWh | Nov 2023 | Mar 2026 | Solar |
| Central Antelope Dry Ranch B LLC | Central Antelope Dry Ranch B, LLC | Lancaster, CA | 7 GWh | Aug 2017 | Dec 2024 | Solar |
| San Pablo Raceway | AES Distributed Energy | Lancaster, CA | 239 GWh | Jul 2019 | Mar 2026 | Solar |
| Green Beanworks B PV | AES Distributed Energy | Lancaster, CA | 7 GWh | Nov 2018 | Dec 2024 | Solar |
| Summer Solar LLC | AES Distributed Energy | Lancaster, CA | 49 GWh | Jun 2016 | Dec 2024 | Solar |
| Lancaster Little Rock | AES Distributed Energy | Landers, CA | 3 GWh | Nov 2014 | Dec 2024 | Solar |
| Zonneveld Oak Grove | Renewable Solar, Inc | Laton, CA | 3 GWh | May 2024 | Dec 2024 | Solar |
| IKEA Tejon 345 | IKEA Property Inc | Lebec, CA | 929 MWh | Mar 2011 | Oct 2024 | Solar |
| Pastoria Energy Facility, LLC | Calpine Corp - Pastoria Energy Center | Lebec, CA | 4 TWh | Apr 2005 | Mar 2026 | Natural Gas |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #26 | Arizona Public Service Company | 24.8 TWh | 92 |
| #54 | Arlington Valley, LLC | 3.2 TWh | 1 |
| #37 | Balancing Authority of Northern California | 13.7 TWh | 87 |
| #49 | Imperial Irrigation District | 6.2 TWh | 66 |
| #29 | Los Angeles Department of Water and Power | 18.6 TWh | 124 |
| #22 | Nevada Power Company | 36.3 TWh | 139 |
| #19 | Salt River Project Agricultural Improvement and Power District | 60.1 TWh | 48 |
| #38 | Tucson Electric Power | 13.7 TWh | 53 |
| #57 | Turlock Irrigation District | 1.9 TWh | 11 |
| #39 | Western Area Power Administration - Desert Southwest Region | 10.3 TWh | 33 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #3 | Electric Reliability Council of Texas, Inc. | 489.5 TWh | 1,313 |
| #5 | Southwest Power Pool | 304.8 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 252.5 TWh | 417 |
| #7 | California Independent System Operator | 173.0 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 163.7 TWh | 204 |
| #10 | Florida Power & Light Co. | 151.0 TWh | 187 |
| #12 | New York Independent System Operator | 134.9 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.2 TWh | 565 |
| #15 | ISO New England | 111.3 TWh | 1,577 |
| #16 | Bonneville Power Administration | 90.2 TWh | 163 |