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 |
|---|---|---|---|---|---|---|
| AP North Lake I, LP | AP North Lake I, LP | Hemet, CA | 46 GWh | Jul 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% |
| Adelanto Solar, LLC | Adelanto Solar, LLC | Adelanto, CA | 59 GWh | Aug 2015 | Dec 2025 | Solar |
| Morgan Lancaster 1 | Terraform Arcadia | Lancaster, CA | 818 MWh | Aug 2015 | Dec 2025 | Solar |
| Lindberg FIeld Solar | Lindberg Field Solar I LLC | San Diego, CA | 3 GWh | Aug 2015 | Dec 2024 | Solar |
| Redcrest Solar Farm | AES Distributed Energy | Edison, CA | 34 GWh | Sep 2015 | Dec 2025 | Solar |
| Columbia Solar Energy, LLC | Columbia Solar Energy LLC | Pittsburg, CA | 12 GWh | Sep 2015 | Dec 2025 | Solar |
| Tequesquite Landfill Solar PV Project | Solar Star California XXXI, LLC | Riverside, CA | 11 GWh | Sep 2015 | Dec 2025 | Solar |
| Fresno Solar | Wellhead Services, Inc | San Joaquin, CA | 5 GWh | Sep 2015 | Aug 2025 | Solar |
| Silver State Solar Power South | Silver State Solar Power South, LLC | Primm Valley, NV | 633 GWh | Oct 2015 | May 2026 | Solar |
| Quinto Solar PV Project | Arevon Energy, Inc. | Gustine, CA | 243 GWh | Oct 2015 | Dec 2025 | Solar |
| Sierra Solar Greenworks | AES Distributed Energy | Lancaster, CA | 41 GWh | Oct 2015 | Dec 2025 | Solar |
| Morelos del Sol | Southern Power Co | Lost Hills, CA | 31 GWh | Oct 2015 | Dec 2025 | Solar |
| Equinix San Jose | Bloom Energy | San Jose, CA | 7 GWh | Oct 2015 | Dec 2025 | Natural Gas |
| Stateline Solar | Southern Power Co | Nipton, CA | 640 GWh | Nov 2015 | 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 |
| Maricopa West Solar PV, LLC | Onward Energy | Taft, CA | 50 GWh | Nov 2015 | Dec 2025 | Solar |
| Citizen B | AES Distributed Energy | Mendota, CA | 9 GWh | Nov 2015 | Dec 2025 | Solar |
| Adera Solar | AES Distributed Energy | Chowchilla, CA | 33 GWh | Nov 2015 | Dec 2025 | Solar |
| Golden Hills Wind | Golden Hills Wind, LLC | Livermore, CA | 253 GWh | Nov 2015 | Dec 2025 | Wind |
| Solar Oasis LLC | Solar Oasis, LLC | Palmdale, CA | 53 GWh | Dec 2015 | Dec 2025 | Solar |
| SEPV 18 | AES Distributed Energy | Palmdale, CA | 4 GWh | Dec 2015 | Dec 2025 | Solar |
| Corcoran Solar 3 | RWE Clean Energy | Corcoran, CA | 48 GWh | Jan 2016 | Dec 2025 | Solar |
| Lemoore 1 | AES Distributed Energy | Lemoore, CA | 1 GWh | Jan 2016 | Sep 2025 | Solar |
| Whitethorn Solar LLC | Whitethorn Solar LLC | Livermore, CA | 5 GWh | Jan 2016 | Dec 2025 | Solar |
| SunE- E Philadelphia Ontario | SunEdison LLC | Ontario, CA | 2 GWh | Feb 2016 | Dec 2025 | Solar |
| Blythe Solar 110, LLC | Blythe Solar 110, LLC | Blythe, CA | 284 GWh | Feb 2016 | Dec 2025 | Solar |
| CalTech - Pasadena (PPA) | Bloom Energy 2009 PPA | Pasadena, CA | 7 GWh | Feb 2016 | Dec 2025 | Natural Gas |
| AT&T - San Diego Trade Street | Bloom Energy | San Diego, CA | 4 GWh | Feb 2016 | Dec 2025 | Natural Gas |
| Delta Electronics Fremont | Delta Electronics (Americas) Ltd | Fremont, CA | 701 MWh | Mar 2016 | Dec 2025 | Solar |
| Imperial Solar Energy Center West | CSOLAR IV West LLC | Seeley, CA | 357 GWh | Mar 2016 | Dec 2025 | Solar |
| Bowerman Power LFG, LLC | Bowerman Power LFG, LLC | Irvine, CA | 151 GWh | Mar 2016 | Dec 2025 | Landfill Gas |
| Kingbird A Solar LLC | Arevon Energy, Inc. | Rosamond, CA | 38 GWh | Mar 2016 | Dec 2025 | Solar |
| Potrero Hills Energy Producers | Potrero Hills Energy Producers, LLC | Suisun City, CA | 56 GWh | Mar 2016 | Dec 2025 | Landfill Gas |
| Kingbird B Solar, LLC | Arevon Energy, Inc. | Rosamond, CA | 55 GWh | Mar 2016 | Dec 2025 | Solar |
| Genentech-Oceanside Hybrid | Tesla Inc. | Oceanside, CA | 4 GWh | Mar 2016 | Dec 2024 | Solar |
| Cottonwood Solar, LLC Cottonwood Carport | Onward Energy | Novato, CA | 1 GWh | Apr 2016 | Dec 2025 | Solar |
| Central Antelope Dry Ranch C | AES Distributed Energy | Lancaster, CA | 39 GWh | Apr 2016 | Dec 2025 | Solar |
| Westside Solar Power PV1 | Westside Assets LLC | Lemoore, CA | 5 GWh | Apr 2016 | Dec 2024 | Solar |
| SEPV Mojave West | AES Distributed Energy | Mojave, CA | 53 GWh | May 2016 | Dec 2025 | Solar |
| Frontier Solar LLC | Boralex US Operations LLC | Newman, CA | 48 GWh | May 2016 | Dec 2025 | Solar |
| Weymouth Solar Plant | Metropolitan Water District of S CA | La Verne, CA | 3 GWh | May 2016 | Dec 2025 | Solar |
| RCWD PV Project | MN8 Energy LLC | Murrieta, CA | 8 GWh | May 2016 | Dec 2025 | Solar |
| AT&T Holger | Bloom Energy | San Jose, CA | 1 GWh | May 2016 | Dec 2025 | Natural Gas |
| RE Tranquillity | Southern Power Co | Cantua Creek, CA | 485 GWh | Jun 2016 | Dec 2025 | Solar |
| Blythe Solar II, LLC | Blythe Solar II, LLC | Blythe, CA | 329 GWh | Jun 2016 | May 2026 | Solar |
| Summer Solar LLC | AES Distributed Energy | Lancaster, CA | 56 GWh | Jun 2016 | Dec 2025 | Solar |
| Henrietta Solar Project | Southern Power Co | Lemoore, CA | 170 GWh | Jul 2016 | Dec 2025 | Solar |
| RE Mustang LLC | MN8 Energy LLC | Lemoore, CA | 221 GWh | Jul 2016 | Dec 2025 | Solar |
| Riverside RWQCP Fuel Cell | Riverside Fuel Cell, LLC | Riverside, CA | 9 GWh | Jul 2016 | Dec 2024 | Other Biomass Gas : 83.8% Natural Gas : 16.2% |
| SunE Rochester | SunE Solar XVI Lessor, LLC | Rancho Cucamonga, CA | 946 MWh | Jul 2016 | Dec 2025 | Solar |
| Antelope Big Sky Ranch | AES Distributed Energy | Lancaster, CA | 50 GWh | Jul 2016 | Dec 2025 | Solar |
| Soboba Community Solar Project | Soboba Band of Luiseno Indians | San Jacinto, CA | 4 GWh | Jul 2016 | Dec 2025 | Solar |
| Five Points Solar Park | Boralex US Operations LLC | Five Points, CA | 81 GWh | Aug 2016 | 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 |
| Copper Mountain Solar 4, LLC | RWE Clean Energy | Boulder City, NV | 248 GWh | Aug 2016 | Dec 2025 | Solar |
| Building G | Golden Springs Development Company LLC | Santa Fe Springs, CA | 2 GWh | Aug 2016 | Dec 2025 | Solar |
| Dulles | Golden Springs Development Company LLC | Jurupa Valley, CA | 2 GWh | Aug 2016 | Dec 2025 | Solar |
| RE Garland A | Southern Power Co | Rosamond, CA | 57 GWh | Aug 2016 | Dec 2025 | Solar |
| NLP Granger | Heelstone Energy Holdings, LLC | Valley Center, CA | 5 GWh | Aug 2016 | Dec 2025 | Solar |
| AT&T Anaheim | Bloom Energy | Anaheim, CA | 7 GWh | Aug 2016 | Dec 2025 | Natural Gas |
| Freeway Springs | Golden Springs Development Company LLC | Santa Fe Springs, CA | 3 GWh | Sep 2016 | Dec 2025 | Solar |
| Munro Valley Solar | Ecos Energy LLC | Olancha, CA | 9 GWh | Sep 2016 | Dec 2025 | Solar |
| Verwey-Hanford Dairy Digester #1 | AlsoEnergy | Hanford, CA | 3 GWh | Sep 2016 | Dec 2025 | Other Biomass Gas |
| DirecTV - Los Angeles | Bloom Energy | Los Angeles, CA | 8 GWh | Sep 2016 | Dec 2025 | Natural Gas |
| AT&T - Hawthorne | Bloom Energy | Hawthorne, CA | 8 GWh | Sep 2016 | Dec 2025 | Natural Gas |
| AT&T - Hayward | Bloom Energy | Hayward, CA | 8 GWh | Oct 2016 | Dec 2025 | Natural Gas |
| Pio Pico Energy Center | Pio Pico Energy Center LLC | San Diego, CA | 47 GWh | Oct 2016 | Dec 2025 | Natural Gas |
| Building F | Golden Springs Development Company LLC | Santa Fe Springs, CA | 1 GWh | Oct 2016 | Dec 2025 | Solar |
| Buidling L | Golden Springs Development Company LLC | Santa Fe Springs, CA | 1 GWh | Oct 2016 | Dec 2025 | Solar |
| RE Garland | Southern Power Co | Rosamond, CA | 510 GWh | Oct 2016 | Dec 2025 | Solar |
| Western Antelope Dry Ranch | AES Distributed Energy | Lancaster, CA | 26 GWh | Nov 2016 | 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 |
| Western Antelope Blue Sky B | AES Distributed Energy | Lancaster, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| North Lancaster Ranch | AES Distributed Energy | Lancaster, CA | 39 GWh | Nov 2016 | Dec 2025 | Solar |
| Elevation Solar C | AES Distributed Energy | Lancaster, CA | 107 GWh | Nov 2016 | May 2026 | Solar |
| RE Astoria | RE Astoria LLC | Rosamond, CA | 187 GWh | Nov 2016 | May 2026 | Solar |
| RE Astoria 2 | RE Astoria 2 LLC | Rosamond, CA | 177 GWh | Nov 2016 | May 2026 | Solar |
| CED Ducor 1 | RWE Clean Energy | Ducor, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| CED Ducor 2 | RWE Clean Energy | Ducor, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| CED Ducor 3 | RWE Clean Energy | Ducor, CA | 38 GWh | Nov 2016 | Dec 2025 | Solar |
| CED Ducor 4 | RWE Clean Energy | Ducor, CA | 52 GWh | Nov 2016 | Dec 2025 | Solar |
| AVS Lancaster 1 | Tesla Inc. | Lancaster, CA | 6 GWh | Nov 2016 | Dec 2025 | Solar |
| US-TOPCO (Soccer Center) | Tesla Inc. | Lancaster, CA | 4 GWh | Nov 2016 | Dec 2025 | Solar |
| Solverde 1 | AES Distributed Energy | Lancaster, CA | 203 GWh | Nov 2016 | May 2026 | Solar |
| Antelope DSR 1 | AES Distributed Energy | Lancaster, CA | 119 GWh | Nov 2016 | May 2026 | Solar |
| Antelope DSR 2 | AES Distributed Energy | Lancaster, CA | 14 GWh | Nov 2016 | Dec 2025 | Solar |
| Mesquite Solar 2, LLC | RWE Clean Energy | Tonopah, AZ | 257 GWh | Nov 2016 | May 2026 | Solar |
| Mesquite Solar 3, LLC | RWE Clean Energy | Tonopah, AZ | 446 GWh | Nov 2016 | May 2026 | Solar |
| Santa Rita Jail Fuel Cell | SRJFC, LLC | Dublin, CA | 9 GWh | Nov 2016 | Dec 2024 | Natural Gas |
| Longboat Solar, LLC | Duke Energy Renewables Services | Barstow, CA | 54 GWh | Nov 2016 | Dec 2025 | Solar |
| Valley Center | Heelstone Energy Holdings, LLC | Valley Center, CA | 4 GWh | Nov 2016 | Dec 2025 | Solar |
| Golden Fields Solar I, LLC | MN8 Energy LLC | Rosamond, CA | 140 GWh | Nov 2016 | May 2026 | Solar |
| Solar Star California, XLI, LLC | MN8 Energy LLC | Rosamond, CA | 139 GWh | Nov 2016 | May 2026 | Solar |
| Solar Star California, XLIV, LLC | MN8 Energy LLC | Pearblossom, CA | 23 GWh | Nov 2016 | Dec 2025 | Solar |
| CSUF State College | MN8 Energy LLC | Fullerton, CA | 2 GWh | Nov 2016 | Dec 2024 | Solar |
| CSUF Nutwood Solar | MN8 Energy LLC | Fullerton, CA | 3 GWh | Nov 2016 | 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 |