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 |
|---|---|---|---|---|---|---|
| Tule Wind LLC | Avangrid Power LLC | Boulevard, CA | 339 GWh | Nov 2017 | May 2026 | Wind |
| Manzana Wind LLC | Avangrid Power LLC | Rosamond, CA | 519 GWh | Nov 2012 | Dec 2025 | Wind |
| Dillon Wind LLC | Avangrid Power LLC | North Palm Springs, CA | 138 GWh | Mar 2008 | Dec 2025 | Wind |
| Phoenix Wind Power LLC | Avangrid Power LLC | North Palm Springs, CA | 5 GWh | May 1999 | Dec 2025 | Wind |
| Camino Solar Hybrid | Avangrid Power LLC | Rosamond, CA | 133 GWh | Mar 2025 | May 2026 | Solar |
| Avenal Park | Avenal Solar Holdings LLC | Avenal, CA | 10 GWh | Jul 2011 | Dec 2025 | Solar |
| Sand Drag LLC | Avenal Solar Holdings LLC | Avenal, CA | 32 GWh | Jul 2011 | Dec 2025 | Solar |
| Sun City Project LLC | Avenal Solar Holdings LLC | Avenal, CA | 33 GWh | Jul 2011 | Dec 2025 | Solar |
| Axium Modesto Solar | Axium US Solar Holdings LLC | Modesto, CA | 53 GWh | Nov 2012 | Dec 2025 | Solar |
| B Braun Medical | B Braun Medical Inc | Irvine, CA | 29 GWh | Oct 1982 | Mar 2025 | Natural Gas |
| Baker Creek Hydroelectric | Baker Station Associates, LP | Bridgeville, CA | 3 GWh | Oct 2014 | Dec 2025 | Water |
| JD Foods - JD Foods | Barrier Solar Inc | Fresno, CA | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Calibrant Bakersfield LLC | Bay4 Energy Services, LLC | Bakersfield, CA | 4 GWh | Jan 2022 | Dec 2024 | Solar |
| BCE Seal Beach | BCE Seal Beach | Seal Beach, CA | 8 GWh | Oct 2025 | Apr 2026 | Solar |
| Bear Valley Power Plant | Bear Valley Electric Service | Big Bear Lake, CA | 2 GWh | Dec 2004 | Dec 2025 | Natural Gas |
| PE Berkeley | Berkeley Cogeneration Facility | Berkeley, CA | 147 GWh | May 1987 | May 2026 | Natural Gas |
| Berry Cogen Tanne Hills 18 | Berry Petroleum Co | Maricopa, CA | 139 GWh | Nov 1986 | May 2026 | Natural Gas |
| Berry Cogen | Berry Petroleum Co | Taft, CA | 9 GWh | Nov 1986 | May 2026 | Natural Gas |
| Berry NMW Cogens | Berry Petroleum Co | Bakersfield, CA | 76 GWh | Oct 2017 | Dec 2025 | Natural Gas |
| BigBeau Solar, LLC | Big Beau Solar, LLC | Rosamond, CA | 330 GWh | Jan 2022 | May 2026 | Solar |
| Big Creek Water Works | Big Creek Water Works Ltd | Hyampom, CA | 6 GWh | Dec 1986 | May 2026 | Water |
| Biola University Hybrid | Biola University | La Mirada, CA | 14 GWh | Mar 1990 | May 2026 | Natural Gas |
| Juniper Networks Sunnyvale | Bloom Energy | Sunnyvale, CA | 4 GWh | Nov 2012 | Dec 2024 | Natural Gas |
| Pixar - Emeryville | Bloom Energy | Emeryville, CA | 7 GWh | Dec 2013 | Dec 2025 | Natural Gas |
| Franklin Templeton San Mateo | Bloom Energy | San Mateo, CA | 9 GWh | Oct 2011 | Dec 2025 | Natural Gas |
| Life Technologies - Pleasanton | Bloom Energy | Pleasanton, CA | 8 GWh | Feb 2013 | Dec 2025 | Natural Gas |
| Maxim | Bloom Energy | San Jose, CA | 7 GWh | Jul 2014 | Dec 2025 | Natural Gas |
| Kellogg's - San Jose | Bloom Energy | San Jose, CA | 9 GWh | Aug 2013 | Dec 2025 | Natural Gas |
| Xilinx San Jose | Bloom Energy | San Jose, CA | 8 GWh | Jan 2012 | Dec 2025 | Natural Gas |
| Life Technologies Carlsbad | Bloom Energy | Carlsbad, CA | 9 GWh | Jul 2012 | Dec 2025 | Natural Gas |
| Kaiser - Harbor City | Bloom Energy | Harbor City, CA | 17 GWh | Nov 2019 | Dec 2025 | Natural Gas |
| Taylor Farms - Schilling Place | Bloom Energy | Salinas, CA | 8 GWh | Jun 2019 | Dec 2025 | Natural Gas |
| ATT Kelvin | Bloom Energy | Irvine, CA | 8 GWh | Mar 2017 | Dec 2025 | Natural Gas |
| FLEX Gibraltar | Bloom Energy | Milpitas, CA | 8 GWh | Jan 2017 | Dec 2025 | Natural Gas |
| SCC - San Jose | Bloom Energy | San Jose, CA | 8 GWh | Feb 2014 | Dec 2025 | Natural Gas |
| Kaiser - Woodland Hills | Bloom Energy | Woodland Hills, CA | 21 GWh | Aug 2019 | Dec 2025 | Natural Gas |
| Micro Santa Clara | Bloom Energy | San Jose, CA | 25 GWh | Jun 2018 | Dec 2025 | Natural Gas |
| Ratkovich Alhambra | Bloom Energy | Alhambra, CA | 7 GWh | Nov 2018 | Dec 2025 | Natural Gas |
| Anheuser Busch - Fairfield | Bloom Energy | Fairfield, CA | 21 GWh | Nov 2022 | Dec 2025 | Natural Gas |
| Redlands Community Hospital | Bloom Energy | Redlands, CA | 9 GWh | May 2021 | Dec 2025 | Natural Gas |
| ATT North Watney | Bloom Energy | Fairfield, CA | 8 GWh | Nov 2019 | Dec 2025 | Natural Gas |
| Enloe Medical - Chico | Bloom Energy | Chico, CA | 15 GWh | May 2021 | Dec 2025 | Natural Gas |
| Comcast - Universal City | Bloom Energy | Universal City, CA | 7 GWh | Aug 2021 | Dec 2025 | Natural Gas |
| AT&T - San Diego Trade Street | Bloom Energy | San Diego, CA | 4 GWh | Feb 2016 | Dec 2025 | Natural Gas |
| CalTech - Pasadena Wilson Ave | Bloom Energy | Pasadena, CA | 19 GWh | Nov 2019 | Dec 2025 | Natural Gas |
| AT&T - Hayward | Bloom Energy | Hayward, CA | 8 GWh | Oct 2016 | Dec 2025 | Natural Gas |
| AT&T - Hawthorne | Bloom Energy | Hawthorne, CA | 8 GWh | Sep 2016 | Dec 2025 | Natural Gas |
| Equinix San Jose | Bloom Energy | San Jose, CA | 7 GWh | Oct 2015 | Dec 2025 | Natural Gas |
| Intel Santa Clara | Bloom Energy | Santa Clara, CA | 7 GWh | Dec 2014 | Dec 2025 | Natural Gas |
| Kaiser - LA | Bloom Energy | Los Angeles, CA | 37 GWh | May 2020 | Dec 2025 | Natural Gas |
| Illumina Way SD | Bloom Energy | San Diego, CA | 28 GWh | Aug 2019 | Dec 2025 | Natural Gas |
| AT&T - Gardena | Bloom Energy | Gardena, CA | 8 GWh | May 2013 | Dec 2025 | Natural Gas |
| AT&T - Redwood City | Bloom Energy | Redwood City, CA | 3 GWh | Feb 2013 | Dec 2025 | Natural Gas |
| DirecTV - Los Angeles | Bloom Energy | Los Angeles, CA | 8 GWh | Sep 2016 | Dec 2025 | Natural Gas |
| Keysight - Santa Rosa | Bloom Energy | Santa Rosa, CA | 34 GWh | Aug 2018 | Dec 2025 | Natural Gas |
| AT&T Anaheim | Bloom Energy | Anaheim, CA | 7 GWh | Aug 2016 | Dec 2025 | Natural Gas |
| San Diego Community College | Bloom Energy | San Diego, CA | 7 GWh | Feb 2020 | Dec 2025 | Natural Gas |
| Life Technologies - Fremont | Bloom Energy | Fremont, CA | 10 GWh | Nov 2020 | Dec 2025 | Natural Gas |
| AT&T Holger | Bloom Energy | San Jose, CA | 1 GWh | May 2016 | Dec 2025 | Natural Gas |
| CalTech - Pasadena (PPA) | Bloom Energy 2009 PPA | Pasadena, CA | 7 GWh | Feb 2016 | Dec 2025 | Natural Gas |
| University of San Diego | Bloom Energy 2009 PPA | San Diego, CA | 8 GWh | Nov 2016 | Dec 2025 | Natural Gas |
| Caltech Central | Bloom Energy 2009 PPA | Pasadena, CA | 8 GWh | Oct 2010 | Dec 2025 | Natural Gas |
| Kaiser Ontario | Bloom Energy 2009 PPA | Ontario, CA | 8 GWh | Sep 2012 | Dec 2025 | Natural Gas |
| Kaiser Downey | Bloom Energy 2009 PPA | Downey, CA | 8 GWh | May 2012 | Dec 2025 | Natural Gas |
| Blythe Solar 110, LLC | Blythe Solar 110, LLC | Blythe, CA | 284 GWh | Feb 2016 | Dec 2025 | Solar |
| Blythe Solar II, LLC | Blythe Solar II, LLC | Blythe, CA | 329 GWh | Jun 2016 | May 2026 | Solar |
| Blythe Solar III, LLC Hybrid | Blythe Solar III, LLC | Blythe, CA | 347 GWh | Apr 2020 | May 2026 | Solar |
| Blythe Solar IV, LLC | Blythe Solar IV, LLC | Blythe, CA | 343 GWh | Oct 2020 | May 2026 | Solar |
| Bodega Avenue Solar LLC | Bodega Avenue Solar LLC | Petaluma, CA | 4 GWh | Dec 2020 | Dec 2025 | Solar |
| Bishop Ranch BR 1-X | Bollinger Canyon Road BR 1-X Solar Project 2020 | San Ramon, CA | 2 GWh | Feb 2022 | Dec 2024 | 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 |
| Frontier Solar LLC | Boralex US Operations LLC | Newman, CA | 48 GWh | May 2016 | Dec 2025 | Solar |
| Kettleman Solar -Centaurus | Boralex US Operations LLC | Kettleman City, CA | 43 GWh | Jun 2015 | Dec 2025 | Solar |
| Five Points Solar Park | Boralex US Operations LLC | Five Points, CA | 81 GWh | Aug 2016 | Dec 2025 | Solar |
| Westlands Solar PV Farm | Boralex US Operations LLC | Huron, CA | 39 GWh | Jan 2014 | Dec 2025 | Solar |
| Bowerman Power LFG, LLC | Bowerman Power LFG, LLC | Irvine, CA | 151 GWh | Mar 2016 | Dec 2025 | Landfill Gas |
| TWC | Bravo REC Management LLC | Tulare, CA | 2 GWh | Jul 2024 | Dec 2025 | Solar |
| Lone Oak | Bravo REC Management LLC | Hanford, CA | 6 GWh | Feb 2023 | Dec 2025 | Solar |
| Elkhorn Dairy | Bravo REC Management LLC | Visalia, CA | 1 GWh | Jan 2009 | Dec 2025 | Solar |
| Double J Dairy Array | Bravo REC Management LLC | Visalia, CA | 9 GWh | Oct 2023 | Dec 2025 | Solar |
| Case Vander Eyk, Jr Dairy Solar | Bravo REC Management LLC | Pixley, CA | 2 GWh | Sep 2023 | Dec 2025 | Solar |
| Open Sky Ranch Inc | Bravo REC Management LLC | Riverdale, CA | 4 GWh | Jun 2024 | Dec 2025 | Solar |
| Dixie Creek Dairy Solar | Bravo REC Management LLC | Hanford, CA | 6 GWh | Jun 2024 | Dec 2025 | Solar |
| Blue Moon Farms | Bravo REC Management LLC | Tipton, CA | 2 GWh | Jul 2024 | Dec 2025 | Solar |
| Brea Expansion Plant | Brea Power II | Brea, CA | 246 GWh | Oct 2012 | May 2026 | Landfill Gas |
| Blacksand Generating Facility | Bridge Energy LLC | Brea, CA | 31 GWh | May 2000 | Dec 2025 | Natural Gas |
| BCE Los Alamitos 1 | Bright Canyon Energy | Los Alamitos, CA | 19 GWh | Jul 2023 | Dec 2024 | Solar |
| Broadridge Cogen | Broadridge Customer Communications | El Dorado Hills, CA | 16 GWh | Apr 2008 | Dec 2024 | Natural Gas : 91.9% Solar : 8.1% |
| Burney Forest Products | Burney Forest Products, A Joint Venture | Burney, CA | 103 GWh | Sep 1989 | Dec 2025 | Wood/Wood Waste Solids : 69.9% Natural Gas : 30.1% |
| Butte College Main Campus Solar | Butte-Glenn Community College District | Oroville, CA | 7 GWh | Jun 2011 | Dec 2025 | Solar |
| C&H Sugar Plant | C&H Sugar Company Inc | Crockett, CA | 41 GWh | Sep 1957 | Apr 2026 | Purchased Steam |
| Windsor Floating Solar | CA ODEVI LLC | Windsor, CA | 3 GWh | Oct 2020 | Dec 2025 | Solar |
| CalCity Solar 1 | CalCity Solar 1, LLC | California City, CA | 8 GWh | Oct 2019 | Dec 2025 | Solar |
| Graniterock Quarry | CalCom Energy | Aromas, CA | 9 GWh | Aug 2022 | Dec 2025 | Solar |
| D'Arrigo Brothers - Phase 4 | CalCom Energy | Salinas, CA | 4 GWh | Feb 2019 | Dec 2025 | Solar |
| Moonlight Packing - Phase 2 | CalCom Energy | Reedley, CA | 3 GWh | May 2019 | Dec 2025 | Solar |
| Alamo | California Dept. of Water Resources | Pearblossom, CA | 66 GWh | Jun 1986 | Dec 2025 | Water |
| W E Warne | California Dept. of Water Resources | Gorman, CA | 211 GWh | Oct 1982 | Dec 2025 | Water |
| Thermalito | California Dept. of Water Resources | Oroville, CA | 302 GWh | Jan 1968 | May 2026 | Water |
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 |