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

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Vulcan San Emidio Solar	Renew Solar VMC LLC	Bakersfield, CA	4 GWh	Feb 2023	Dec 2024	Solar
Danell Bros Inc	Renewable Solar, Inc	Hanford, CA	6 GWh	Aug 2021	Dec 2025	Solar
Dover Dairy	Renewable Solar, Inc	Hanford, CA	2 GWh	Apr 2022	Dec 2025	Solar
Zonneveld Oak Grove	Renewable Solar, Inc	Laton, CA	388 MWh	May 2024	Dec 2025	Solar
River Ranch Dairy	Renewable Solar, Inc	Hanford, CA	995 MWh	May 2024	Dec 2025	Solar
Allied Potato	Renewable Solar, Inc	Bakersfield, CA	310 MWh	Apr 2025	Dec 2025	Solar
Open Sky Dairy	Renewable Solar, Inc	Riverdale, CA	419 MWh	Jun 2024	Dec 2025	Solar
Avalon Dairy	Renewable Solar, Inc	Wasco, CA	792 MWh	Aug 2024	Dec 2025	Solar
Superior Almond Hulling	Renewable Solar, Inc	Cantua Creek, CA	472 MWh	Aug 2024	Dec 2025	Solar
Resurgence Solar	Resurgence Solar	Boron, CA	246 GWh	Jul 2023	May 2026	Solar
Resurgence Solar II	Resurgence Solar II	Boron, CA	133 GWh	Jul 2023	May 2026	Solar
Rio Bravo Rocklin	Rio Bravo Rocklin	Lincoln, CA	147 GWh	May 1989	Dec 2025	Wood/Wood Waste Solids : 99.0% Natural Gas : 1.0%
Rio Vista Solar	Rio Vista Executive Boat & RV Storage, LLC	Rio Vista, CA	3 GWh	Mar 2025	Dec 2025	Solar
Rising Tree Wind Farm II	Rising Tree Wind Farm II LLC	Mojave, CA	54 GWh	Dec 2014	Dec 2025	Wind
Rising Tree Wind Farm III	Rising Tree Wind Farm III LLC	Mojave, CA	260 GWh	May 2015	Dec 2025	Wind
Rising Tree Wind Farm	Rising Tree Wind Farm LLC	Mojave, CA	250 GWh	Dec 2014	Dec 2025	Wind
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%
American Canyon Solar	RP Napa Solar 1, LLC	American Canyon, CA	6 GWh	Aug 2019	Dec 2025	Solar
Avenue 26 Solar	RPCA Solar 1, LLC	Chowchilla, CA	13 GWh	Oct 2024	Dec 2025	Solar
Byron Highway Solar	RPCA Solar 3, LLC	Byron, CA	12 GWh	Oct 2022	Dec 2025	Solar
East Cleveland Road Solar	RPCA Solar 7, LLC	El Nido, CA	6 GWh	Jan 2025	Dec 2025	Solar
Russell City Energy Center	Russell City Energy Company LLC	Hayward, CA	2 TWh	Jul 2013	May 2026	Natural Gas
CED Ducor 3	RWE Clean Energy	Ducor, CA	38 GWh	Nov 2016	Dec 2025	Solar
White River Solar	RWE Clean Energy	Alpaugh, CA	36 GWh	Jun 2013	Dec 2025	Solar
Oro Loma	RWE Clean Energy	Oro Loma, CA	49 GWh	Dec 2016	Dec 2025	Solar
Corcoran Solar 2	RWE Clean Energy	Corcoran, CA	47 GWh	Apr 2015	Dec 2025	Solar
Corcoran Solar 3	RWE Clean Energy	Corcoran, CA	48 GWh	Jan 2016	Dec 2025	Solar
Corcoran Solar	RWE Clean Energy	Corcoran, CA	22 GWh	Jul 2013	Dec 2025	Solar
Atwell Island West Solar	RWE Clean Energy	Alpaugh, CA	52 GWh	Apr 2015	Dec 2025	Solar
Blackwell Solar Park	RWE Clean Energy	Lost Hills, CA	39 GWh	Dec 2018	Dec 2025	Solar
Panoche Valley Solar Farm	RWE Clean Energy	Paicines, CA	240 GWh	Dec 2017	May 2026	Solar
CED Ducor 4	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
Great Valley Solar Portfolio Holdings, L	RWE Clean Energy	Cantua Creek, CA	491 GWh	Nov 2017	May 2026	Solar
CED Ducor 2	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
CED Ducor 1	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
Copper Mountain Solar 4, LLC	RWE Clean Energy	Boulder City, NV	248 GWh	Aug 2016	Dec 2025	Solar
CED Avenal	RWE Clean Energy	Avenal, CA	16 GWh	Dec 2016	Dec 2025	Solar
Copper Mountain Solar 2	RWE Clean Energy	Boulder City, NV	726 GWh	Jun 2012	Dec 2025	Solar
Alpaugh 50	RWE Clean Energy	Alpaugh, CA	57 GWh	Nov 2012	Dec 2025	Solar
Desert Hot Springs Solar	RWE Clean Energy	Desert Hot Springs, CA	3 GWh	Nov 2013	Dec 2025	Solar
White River Solar 2	RWE Clean Energy	Alpaugh, CA	49 GWh	Aug 2014	Dec 2025	Solar
CM10	RWE Clean Energy	Boulder City, NV	18 GWh	Nov 2008	Dec 2025	Solar
Alpaugh North	RWE Clean Energy	Alpaugh, CA	21 GWh	Nov 2012	Dec 2025	Solar
Mesquite Solar 1	RWE Clean Energy	Tonopah, AZ	392 GWh	Oct 2011	Dec 2025	Solar
CM48	RWE Clean Energy	Boulder City, NV	90 GWh	May 2010	Dec 2025	Solar
Mesquite Solar 4, LLC	RWE Clean Energy	Tonopah, AZ	142 GWh	Dec 2023	May 2026	Solar
Mesquite Solar 2, LLC	RWE Clean Energy	Tonopah, AZ	257 GWh	Nov 2016	May 2026	Solar
Wistaria Ranch Solar	RWE Clean Energy	Calexico, CA	271 GWh	Nov 2018	May 2026	Solar
Fifth Standard Solar PV, LLC (Hybrid)	RWE Clean Energy	Huron, CA	338 GWh	Aug 2023	May 2026	Solar
Mesquite Solar 3, LLC	RWE Clean Energy	Tonopah, AZ	446 GWh	Nov 2016	May 2026	Solar
Northern Orchard Solar PV, LLC	RWE Clean Energy	Taft, CA	366 GWh	Jun 2025	May 2026	Solar
Chili Bar	Sacramento Municipal Util Dist	Placerville, CA	25 GWh	Feb 1965	Dec 2025	Water
Solano Wind	Sacramento Municipal Util Dist	Rio Vista, CA	724 GWh	May 1994	May 2026	Wind
Saint Agnes Medical Center	Saint Agnes Medical Center	Fresno, CA	32 GWh	Apr 2001	May 2026	Natural Gas
Salinas River Cogeneration	Salinas River Cogeneration Co	San Ardo, CA	255 GWh	Oct 1991	May 2026	Natural Gas
Salka Cabazon Wind	Salka Cabazon Wind LLC	North Palm Springs, CA	13 GWh	Dec 1998	Dec 2025	Wind
San Antonio Regional Hospital	San Antonio Regional Hospital	Upland, CA	13 GWh	Dec 1984	Dec 2025	Natural Gas
SB Water Reclamation Fuel Cell	San Bernardino Fuel Cell, LLC	San Bernardino, CA	9 GWh	May 2021	Dec 2024	Other Biomass Gas : 91.7% Natural Gas : 8.3%
Waterman Turnout Hydroelectric	San Bernardino Valley Mun. Water Dist.	San Bernardino, CA	2 GWh	Aug 2024	Dec 2025	Water
Ramona Solar Energy	San Diego Gas & Electric Co	Ramona, CA	2 GWh	Mar 2017	Dec 2025	Solar
Palomar Energy	San Diego Gas & Electric Co	Escondido, CA	1 TWh	Sep 2005	May 2026	Natural Gas
Miramar Energy Facility	San Diego Gas & Electric Co	San Diego, CA	11 GWh	May 2005	May 2026	Natural Gas
Cuyamaca Peak Energy Plant	San Diego Gas & Electric Co	El Cajon, CA	10 GWh	Apr 2002	Dec 2025	Natural Gas
San Diego State University	San Diego State University	San Diego, CA	57 GWh	Aug 2002	May 2026	Natural Gas : 97.4% Solar : 2.6%
San Dimas Wash Generating Station	San Gabriel Valley Mun Wtr Dt	San Dimas, CA	1 GWh	Feb 1986	Sep 2025	Water
Karen Avenue Wind Farm	San Gorgonio Farms Inc	North Palm Springs, CA	26 GWh	Dec 1984	Dec 2025	Wind
San Gorgonio Farms Wind Farm	San Gorgonio Farms Inc	Whitewater, CA	52 GWh	Feb 1983	Dec 2025	Wind
San Jose Cogeneration	San Jose State University Fclts Dev &Ops	San Jose, CA	35 GWh	Nov 1984	May 2026	Natural Gas
SJ/SC WPCP	San Jose/Santa Clara Water P C	San Jose, CA	69 GWh	Jan 1953	May 2026	Natural Gas : 54.1% Other Biomass Gas : 45.7%
Santa Cruz Energy	Santa Cruz Energy LLC	Santa Cruz, CA	9 GWh	Oct 2009	Dec 2025	Landfill Gas
Palo Verde College	Scale Sustainable I, LLC	Blythe, CA	2 GWh	Jul 2009	Dec 2024	Solar
SCDA Solar 1	SCDA Solar 1, LLC	Sacramento, CA	14 GWh	Sep 2017	Dec 2025	Solar
Cawelo Water District Solar	Scooby Solar, LLC	Famoso, CA	7 GWh	Sep 2023	Dec 2024	Solar
SCV Water - Gladbach Water Treatment Plant Phases I and II	SCV Water	Santa Clara, CA	858 MWh	Nov 2014	Oct 2025	Solar
Athos Solar Project	SE Athos I, LLC	Desert Center, CA	703 GWh	May 2022	May 2026	Solar
SE Athos II, LLC	SE Athos II, LLC	Desert Center, CA	559 GWh	Nov 2021	May 2026	Solar
Pacific Ethanol Madera Solar Array	Seaboard Energy California, LLC	Madera, CA	4 GWh	Jul 2018	Dec 2025	Solar
Sealed Air Madera Solar Project	Sealed Air Corporation	Madera, CA	7 GWh	Apr 2022	Dec 2025	Solar
Argus Cogen Plant	Searles Valley Minerals Operations Inc.	Trona, CA	187 GWh	Nov 1947	May 2026	Bituminous Coal : 82.0% Natural Gas : 18.0%
Sentinel Energy Center, LLC	Sentinel Energy Center LLC	Desert Hot Springs, CA	124 GWh	Apr 2013	May 2026	Natural Gas
Welport Lease Project	Sentinel Peak Resources California, LLC	McKittrick, CA	34 GWh	Feb 1990	Dec 2025	Natural Gas
Dome Project	Sentinel Peak Resources California, LLC	Fellows, CA	48 GWh	Jul 1988	Dec 2025	Natural Gas
SEPV Cuyama Hybrid	SEPV Cuyama, LLC	New Cuyama, CA	3 GWh	Nov 2023	Dec 2025	Solar
SEPV Sierra	SEPV Sierra, LLC	Lancaster, CA	5 GWh	Mar 2020	Dec 2025	Solar
Diablo Winds LLC	Sequitur Renewables, LLC	Livermore, CA	31 GWh	Nov 2004	Dec 2025	Wind
Berry Placerita Cogen	Shadow Wolf Energy	Santa Clarita, CA	4 GWh	Feb 1990	May 2026	Natural Gas
Shafter Solar LLC	Shafter Solar LLC	Bakersfield, CA	41 GWh	Apr 2015	Dec 2025	Solar
Grossmont Hospital	Sharp Grossmont Hospital	La Mesa, CA	29 GWh	Jul 1983	Dec 2025	Natural Gas
Roaring Creek Water Power	Shasta Hydroelectric Inc	Montgomery Creek, CA	6 GWh	Nov 1986	Dec 2025	Water
Wheelabrator Shasta	Shasta Sustainable Resource Management, Inc.	Anderson, CA	290 GWh	Sep 1987	May 2026	Wood/Wood Waste Solids
Whitewater Hill Wind Partners	Shell Wind Energy Inc.	North Palm Springs, CA	127 GWh	Sep 2002	Dec 2025	Wind
Cabazon Wind Partners	Shell Wind Energy Inc.	Cabazon, CA	108 GWh	Sep 2002	Dec 2025	Wind
Sierra Nevada Brewing Co Hybrid	Sierra Nevada Brewing Co	Chico, CA	11 GWh	Apr 2005	Dec 2025	Natural Gas : 65.7% Solar : 19.5% Other Biomass Gas : 14.9%
Sierra Pacific Sonora	Sierra Pacific Industries	Standard, CA	43 GWh	Jan 2001	Dec 2025	Wood/Wood Waste Solids
Sierra Pacific Lincoln Facility	Sierra Pacific Industries	Lincoln, CA	80 GWh	Feb 2004	Dec 2025	Wood/Wood Waste Solids
SPI Anderson 2	Sierra Pacific Industries	Anderson, CA	122 GWh	Jul 2015	Dec 2025	Wood/Wood Waste Solids : 99.3% Natural Gas : 0.7%
Sierra Pacific Quincy Facility	Sierra Pacific Industries	Quincy, CA	202 GWh	Nov 1986	Dec 2025	Wood/Wood Waste Solids
Sierra Pacific Burney Facility	Sierra Pacific Industries	Burney, CA	95 GWh	Sep 1986	Dec 2025	Wood/Wood Waste Solids
Sierra Pacific Chinese Camp	Sierra Pacific Industries	Chinese Camp, CA	5 GWh	Feb 2022	Dec 2025	Solar
Sierra Pacific Industries (2042-RD)	Sierra Pacific Industries	Red Bluff, CA	17 GWh	Apr 2020	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