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 | Oct 2026 |
| Annual Generation | 168.7 TWh |
| Power Plants | 2,170 |
| Utilities | 1,001 |
| Ranked #7 out of 64 in terms of net annual generation | |
| Ranked #14 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 32% Solar | 30.9% Water | 12.2% Wind | 11.8% Nuclear | 11.2% Coal | 0% |
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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 |
|---|---|---|---|---|---|---|
| San Gorgonio Farms Wind Farm | San Gorgonio Farms Inc | Whitewater, CA | 52 GWh | Feb 1983 | Dec 2025 | Wind |
| AM Wind Repower | AM Wind Repower LLC | Whitewater, CA | 90 GWh | Feb 2025 | Jul 2026 | Wind |
| Mesa Wind Repower | Mesa Wind Repower | Whitewater, CA | 80 GWh | May 2024 | Dec 2024 | Wind |
| Olsen | Olsen Power Partners | Whitmore, CA | 15 GWh | Dec 1989 | Dec 2025 | Water |
| Puente Hills Energy Recovery | Los Angeles County Sanitation | Whittier, CA | 145 GWh | Sep 1986 | Jul 2026 | Landfill Gas |
| Wadham Energy | Wadham Energy LP | Williams, CA | 145 GWh | Feb 1989 | Dec 2025 | Agricultural By-Products : 99.7% |
| Abel Road Bioenergy | ACC Renewable Resources | Williams, CA | 23 GWh | Jun 2022 | Dec 2025 | Agricultural By-Products |
| Harbor Cogen | Harbor Cogeneration Co. | Wilmington, CA | 9 GWh | Nov 1988 | Nov 2025 | Natural Gas |
| Diamond Valley Solar Project | Ecos Energy LLC | Winchester, CA | 2 GWh | Dec 2014 | Dec 2025 | Solar |
| Diamond Valley Lake | Metropolitan Water District of S CA | Winchester, CA | 1 GWh | Apr 2001 | Oct 2025 | Water |
| Windsor Floating Solar | CA ODEVI LLC | Windsor, CA | 3 GWh | Oct 2020 | Dec 2025 | Solar |
| Monticello Dam | Solano Irrigation District | Winters, CA | 41 GWh | May 1983 | Dec 2025 | Water |
| Kaiser - Woodland Hills | Bloom Energy | Woodland Hills, CA | 21 GWh | Aug 2019 | Dec 2025 | Natural Gas |
| Target Woodland Solar Project | MN8 Energy LLC | Woodland, CA | 3 GWh | Nov 2018 | Dec 2025 | Solar |
| Woodland Biomass Power Ltd | DTE Energy Services-Woodland | Woodland, CA | 162 GWh | Aug 1989 | Dec 2025 | Wood/Wood Waste Solids : 99.5% |
| Yolo County Solar Project | Yolo County of - (CA) | Woodland, CA | 446 MWh | Nov 2010 | Nov 2025 | Solar |
| Walgreens Woodland Distribution Center | SunE WG45 Woodland LLC | Woodland, CA | 432 MWh | Jul 2007 | Dec 2025 | Solar |
| MM Yolo Power | Yolo County Community Services Department | Woodland, CA | 16 GWh | Sep 1990 | Dec 2025 | Landfill Gas |
| Yorba Linda | Metropolitan Water District of S CA | Yorba Linda, CA | 9 GWh | Oct 1981 | Nov 2025 | Water |
| Yuba City Energy Center | Calpine Corp-Yuba City | Yuba City, CA | 23 GWh | Jul 2002 | Dec 2025 | Natural Gas |
| Greenleaf 2 Power Plant | Greenleaf Energy LLC | Yuba City, CA | 64 GWh | Sep 1989 | Jun 2026 | Natural Gas |
| Feather River Energy Center | Calpine Corp-Yuba City | Yuba City, CA | 35 GWh | Dec 2002 | Dec 2025 | Natural Gas |
| Yuba City Cogen Partners | Wellhead Services, Inc | Yuba City, CA | 15 GWh | Nov 1990 | Dec 2025 | Natural Gas |
| Greenleaf 1 | Calpine Greenleaf Holding, Inc. | Yuba City, CA | 3 GWh | Jan 1989 | Dec 2025 | Natural Gas |
| White Wing Solar | Leeward Asset Management, LLC | Yuma, AZ | 445 GWh | Sep 2024 | Jul 2026 | Solar |
| Three Forks Water Power Project | Grizzly Mountain Ranch | Zenia, CA | 3 GWh | Nov 1984 | Dec 2024 | Water |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #25 | Arizona Public Service Company | 25.8 TWh | 102 |
| #55 | Arlington Valley, LLC | 3.2 TWh | 1 |
| #38 | Balancing Authority of Northern California | 13.9 TWh | 91 |
| #49 | Imperial Irrigation District | 6.2 TWh | 66 |
| #29 | Los Angeles Department of Water and Power | 19.3 TWh | 132 |
| #22 | Nevada Power Company | 38.6 TWh | 143 |
| #51 | PUD No. 1 of Douglas County | 4.4 TWh | 5 |
| #19 | Salt River Project Agricultural Improvement and Power District | 60.5 TWh | 51 |
| #57 | Turlock Irrigation District | 1.9 TWh | 11 |
| #39 | Western Area Power Administration - Desert Southwest Region | 10.6 TWh | 36 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #3 | Electric Reliability Council of Texas, Inc. | 506.3 TWh | 1,487 |
| #5 | Southwest Power Pool | 314.5 TWh | 876 |
| #6 | Southern Company Services, Inc. - Trans | 259.3 TWh | 423 |
| #7 | California Independent System Operator | 168.7 TWh | 2,170 |
| #9 | Tennessee Valley Authority | 166.2 TWh | 209 |
| #10 | Florida Power & Light Co. | 153.0 TWh | 188 |
| #12 | New York Independent System Operator | 134.1 TWh | 1,334 |
| #13 | Duke Energy Carolinas | 113.4 TWh | 578 |
| #15 | ISO New England | 112.2 TWh | 1,667 |
| #16 | Bonneville Power Administration | 91.1 TWh | 170 |