California Independent System Operator

Balancing Authority Summary Information

California Independent System Operator is ranked #7 out of 65 balancing authorities in terms of total annual electricity generation.

Balancing Authority	California Independent System Operator
States	Arizona California Nevada
Last Update	Apr 2026
Annual Generation	176.8 TWh
Power Plants	2,075
Utilities	965
Ranked #7 out of 65 in terms of net annual generation
Ranked #10 out of 54 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 38.5% Solar \| 28.7% Water \| 12.1% Wind \| 10.2% Nuclear \| 10.1%

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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
Catalina Solar 2, LLC	Onward Energy	Rosamond, CA	53 GWh	Jul 2015	Dec 2024	Solar
Adelanto Solar, LLC	Adelanto Solar, LLC	Adelanto, CA	53 GWh	Aug 2015	Dec 2024	Solar
SEPV Mojave West	AES Distributed Energy	Mojave, CA	54 GWh	May 2016	Dec 2024	Solar
Antelope Big Sky Ranch	AES Distributed Energy	Lancaster, CA	54 GWh	Jul 2016	Dec 2024	Solar
Oak Creek Energy Systems I	Terra-Gen Operating Co-Wind	Mojave, CA	54 GWh	May 1982	Dec 2024	Wind
San Diego State University	San Diego State University	San Diego, CA	56 GWh	Aug 2002	Feb 2026	Natural Gas : 97.2% Solar : 2.8%
Beardsley	Oakdale&South San Joaquin Irrigation D.	None, CA	56 GWh	Apr 1957	Dec 2024	Water
Kingbird B Solar, LLC	Arevon Energy, Inc.	Rosamond, CA	56 GWh	Mar 2016	Dec 2024	Solar
Alamo	California Dept. of Water Resources	Pearblossom, CA	56 GWh	Jun 1986	Dec 2024	Water
Edwards Sanborn E3	Terra-Gen Operating Co-Hybrid	Mojave, CA	57 GWh	Nov 2021	Feb 2026	Solar
TA-High Desert LLC	TA-High Desert LLC	Lancaster, CA	57 GWh	Feb 2013	Dec 2024	Solar
Oasis Alta	Terra-Gen Operating Co-Wind	Mojave, CA	57 GWh	Mar 2021	Dec 2024	Wind
Antelope DSR 3	AES Distributed Energy	Lancaster, CA	58 GWh	Aug 2019	Dec 2024	Solar
Sunray 2	Sunray Energy 2, LLC	Daggett, CA	58 GWh	Nov 1984	Dec 2024	Solar
RE Garland A	Southern Power Co	Rosamond, CA	58 GWh	Aug 2016	Dec 2024	Solar
Potrero Hills Energy Producers	Potrero Hills Energy Producers, LLC	Suisun City, CA	59 GWh	Mar 2016	Dec 2024	Landfill Gas
Rising Tree Wind Farm II	Rising Tree Wind Farm II LLC	Mojave, CA	59 GWh	Dec 2014	Dec 2024	Wind
Cymric 36W Cogen	Chevron USA Inc	McKittrick, CA	59 GWh	Sep 1982	Dec 2024	Natural Gas
Plant No 2 Orange County	Orange County Sanitation Dist	Huntington Beach, CA	59 GWh	May 1993	Dec 2024	Other Biomass Gas : 73.7% Natural Gas : 26.0%
Mammoth G1	Ormat Nevada Inc	Mammoth lakes, CA	60 GWh	Nov 1984	Dec 2024	Geothermal
Chicago Park	Nevada Irrigation District	Colfax, CA	60 GWh	Oct 1965	Dec 2024	Water
Friant Hydro Facility	Friant Power Authority	Friant, CA	60 GWh	Mar 1985	Dec 2024	Water
Little Bear Solar 1, LLC	Little Bear Solar 1, LLC (Longroad)	Mendota, CA	60 GWh	Nov 2020	Feb 2026	Solar
San Gorgonio Farms Wind Farm	San Gorgonio Farms Inc	Whitewater, CA	61 GWh	Feb 1983	Dec 2024	Wind
Covanta Stanislaus Energy	Covanta Stanislaus Inc	Crows Landing, CA	62 GWh	Aug 1988	Dec 2024	Non-biogenic Municipal Solid Waste : 50.0% Biogenic Municipal Solid Waste : 40.9% Distillate Fuel Oil : 9.1%
Loma Linda University Cogen	Loma Linda University	Loma Linda, CA	62 GWh	Jan 1980	Feb 2026	Natural Gas
Solar Borrego I	NRG Solar Borrego I	Borrego Springs, CA	62 GWh	Jan 2013	Dec 2024	Solar
Chevron - Lost Hills Hybrid	MN8 Energy LLC	Lost Hills, CA	64 GWh	Mar 2020	Feb 2026	Solar
Cuyama Solar, LLC	Cuyama Solar, LLC	Cuyama, CA	64 GWh	Oct 2017	Feb 2026	Solar
Forks of Butte Hydro Project	Hypower Energy, LLC	Magalia, CA	66 GWh	Feb 1992	Dec 2024	Water
Pio Pico Energy Center	Pio Pico Energy Center LLC	San Diego, CA	66 GWh	Oct 2016	Dec 2024	Natural Gas
Parnassus Central Utility Plant	University of California-San Francisco	San Francisco, CA	66 GWh	Dec 1995	Feb 2026	Natural Gas
Kelly Ridge	South Feather Water and Power Agency	Oroville, CA	67 GWh	Aug 1963	Dec 2024	Water
McKittrick Cogen	Chevron USA Inc	McKittrick, CA	67 GWh	May 2012	Dec 2024	Natural Gas
MCAGCC Cogen Plant	DOD USMC Marine Air Ground Combat	Twentynine Palms, CA	69 GWh	Jan 2003	Dec 2024	Natural Gas
Central 40	Central 40, LLC	Newman, CA	71 GWh	Jan 2021	Feb 2026	Solar
85 A	Wind Wall 1 LLC	Tehachapi, CA	71 GWh	Dec 1984	Dec 2024	Wind
Riverside Energy Resource Center	City of Riverside - (CA)	Riverside, CA	72 GWh	May 2006	Dec 2024	Natural Gas
Mojave 16/17/18	Terra-Gen Operating Co-Wind	Mojave, CA	74 GWh	Nov 1989	Dec 2024	Wind
Torrance Refining Company, LLC	Torrance Refining Company, LLC	Torrance, CA	74 GWh	Aug 1983	Feb 2026	Other Gas : 66.2% Waste Heat : 33.8%
CP Kelco San Diego Plant	CP Kelco US Inc.	San Diego, CA	75 GWh	Sep 1983	Feb 2026	Natural Gas
Berry NMW Cogens	Berry Petroleum Co	Bakersfield, CA	75 GWh	Oct 2017	Dec 2024	Natural Gas
Mountain View III	Avangrid Power LLC	North Palm Springs, CA	76 GWh	Nov 2003	Dec 2024	Wind
Glass House Camarillo Cultivation	Glass House Camarillo Cultivation	Camarillo, CA	78 GWh	Jul 2012	Dec 2024	Natural Gas
Mesa Wind Repower	Mesa Wind Repower	Whitewater, CA	80 GWh	May 2024	Dec 2024	Wind
Lost Hills/Blackwell	Southern Power Co	Lost Hills, CA	81 GWh	Mar 2015	Dec 2024	Solar
Narrows PH	Yuba County Water Agency	Grass Valley, CA	81 GWh	Nov 1942	Dec 2024	Water
Ameresco Ox Mountain	AMERESCO Ox Mountain Energy LLC	Half Moon Bay, CA	81 GWh	Nov 2008	Feb 2026	Landfill Gas
El Dorado	El Dorado Irrigation District	Pollock Pines, CA	81 GWh	Dec 1923	Dec 2024	Water
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	81 GWh	Nov 2018	Dec 2024	Wind
Aidlin Geothermal Power Plant	Geysers Power Co LLC	Middletown, CA	81 GWh	Apr 1989	Dec 2024	Geothermal
Edwards Sanborn 1C	Terra-Gen Operating Co-Hybrid	Mojave, CA	81 GWh	-	Feb 2026	Solar
Muck Valley Hydroelectric	Brookfield Renewable Trading and Marketing LP	NA, CA	82 GWh	Nov 1988	Dec 2024	Water
Mammoth G2	Ormat Nevada Inc	Mammoth Lakes, CA	82 GWh	Nov 1990	Dec 2024	Geothermal
SJ/SC WPCP	San Jose/Santa Clara Water P C	San Jose, CA	83 GWh	Jan 1953	Feb 2026	Natural Gas : 52.9% Other Biomass Gas : 47.0%
Edwards Sanborn S3	Terra-Gen Operating Co-Hybrid	Mojave, CA	83 GWh	Feb 2022	Feb 2026	Solar
Alpaugh 50	Consolidated Edison Development Inc.	Alpaugh, CA	85 GWh	Nov 2012	Dec 2024	Solar
FPL Energy Montezuma Winds LLC	FPL Energy Montezuma Wind	Birds Landing, CA	85 GWh	Oct 2010	Dec 2024	Wind
Sand Bar Power Plant	Tri-Dam Power Authority	Stanislaus Ntl. Fores, CA	85 GWh	Apr 1986	Dec 2024	Water
West Point PH	Pacific Gas & Electric Co.	Pioneer, CA	89 GWh	Oct 1948	Jun 2024	Water
Buena Vista Energy LLC	Leeward Asset Management, LLC	Byron, CA	90 GWh	Nov 2006	Dec 2024	Wind
Edwards Sanborn S4	Terra-Gen Operating Co-Hybrid	Mojave, CA	90 GWh	Oct 2022	Feb 2026	Solar
Southeast Resource Recovery	SERRF Joint Powers Authority	Long Beach, CA	90 GWh	Jun 1988	Mar 2024	Non-biogenic Municipal Solid Waste : 51.7% Biogenic Municipal Solid Waste : 42.3% Natural Gas : 6.1%
Kern River Cogeneration	Kern River Cogeneration Co	Bakersfield, CA	92 GWh	Jun 1985	Feb 2026	Natural Gas
AM Wind Repower LLC	Brookfield Renewable Trading and Marketing LP	Whitewater, CA	93 GWh	-	Feb 2026	Wind
Five Points Solar Park	Boralex US Operations LLC	Five Points, CA	93 GWh	Aug 2016	Dec 2024	Solar
Sierra Pacific Lincoln Facility	Sierra Pacific Industries	Lincoln, CA	94 GWh	Feb 2004	Dec 2024	Wood/Wood Waste Solids
CM48	Consolidated Edison Development Inc.	Boulder City, NV	94 GWh	May 2010	Dec 2024	Solar
J S Eastwood	Southern California Edison Co	Shaver Lake, CA	96 GWh	Nov 1987	Feb 2026	Water
Bucks Creek	Pacific Gas & Electric Co.	Storrie, CA	96 GWh	Feb 1928	Mar 2024	Water
Sierra Pacific Burney Facility	Sierra Pacific Industries	Burney, CA	96 GWh	Sep 1986	Dec 2024	Wood/Wood Waste Solids
Cabazon Wind Partners	Shell Wind Energy Inc.	Cabazon, CA	97 GWh	Sep 2002	Dec 2024	Wind
85 B	Wind Wall 1 LLC	Tehachapi, CA	98 GWh	Dec 1984	Dec 2024	Wind
Edwards Sanborn S1	Terra-Gen Operating Co-Hybrid	Mojave, CA	100 GWh	Feb 2022	Feb 2026	Solar
Elevation Solar C	AES Distributed Energy	Lancaster, CA	101 GWh	Nov 2016	Feb 2026	Solar
Mammoth G3	Ormat Nevada Inc	Mammoth Lakes, CA	103 GWh	Nov 1990	Dec 2024	Geothermal
Tulloch	Oakdale&South San Joaquin Irrigation D.	Jamestown, CA	104 GWh	May 1958	Dec 2024	Water
Humboldt Sawmill Company	Mendocino Forest Products	Scotia, CA	105 GWh	Dec 1937	Feb 2026	Wood/Wood Waste Solids : 99.8%
Kings River PH	Pacific Gas & Electric Co.	Balch Camp, CA	107 GWh	Feb 1962	Dec 2024	Water
Little Bear 5	Little Bear Solar 5, LLC (Longroad)	Mendota, CA	107 GWh	Nov 2020	Feb 2026	Solar
Borden Solar Farm	41MB 8me, LLC	Madera, CA	107 GWh	May 2020	Feb 2026	Solar
Salt Springs	Pacific Gas & Electric Co.	Pioneer, CA	108 GWh	May 1931	Dec 2024	Water
Ocotillo Wells	Conductive Power	Borrego Springs, CA	108 GWh	Aug 2023	Feb 2026	Solar
Rio Bravo Fresno	Rio Bravo Fresno	Fresno, CA	108 GWh	Jun 1988	Oct 2024	Wood/Wood Waste Solids : 94.7% Natural Gas : 5.3%
Pacific-Ultrapower Chinese Station	IHI Power Services Corp	Jamestown, CA	109 GWh	Sep 1986	Feb 2026	Wood/Wood Waste Solids : 99.5% Gaseous Propane : 0.5%
RE Gaskell West 2 LLC	RE Gaskell West LLC	Rosamond, CA	110 GWh	Apr 2023	Feb 2026	Solar
SEGS IX	Terra-Gen Operating Co-Solar	Hinkley, CA	112 GWh	Aug 1990	Sep 2024	Solar
UCI Facilities Management Central Plant	University of California Irvine	Irvine, CA	113 GWh	Jun 2007	Feb 2026	Natural Gas
Mesa Wind Power LLC	Brookfield Renewable Trading and Marketing LP	North Palm Springs, CA	117 GWh	Oct 1984	Feb 2026	Wind
Pardee	East Bay Municipal Util Dist	Valley Springs, CA	118 GWh	Jun 1930	Dec 2024	Water
Alpine Solar	Alpine BESS LLC	Lancaster, CA	119 GWh	Jan 2013	Dec 2024	Solar
Antelope DSR 1	AES Distributed Energy	Lancaster, CA	120 GWh	Nov 2016	Feb 2026	Solar
Camino Solar Hybrid	Avangrid Power LLC	Rosamond, CA	120 GWh	-	Feb 2026	Solar
San Gorgonio Westwinds II LLC	Terra-Gen Operating Co-Wind	North Palm Springs, CA	124 GWh	May 1999	Dec 2024	Wind
Baldy Mesa 2_Silver Peak Hybrid	AES Clean Energy	Adelanto, CA	125 GWh	Nov 2024	Feb 2026	Solar
Voyager Wind III	Terra-Gen Operating Co-Wind	Mojave, CA	125 GWh	Nov 2018	Feb 2026	Wind
RE Camelot LLC	Onward Energy	Mojave, CA	125 GWh	Nov 2014	Dec 2024	Solar
Kumeyaay Wind	Leeward Asset Management, LLC	Campo, CA	127 GWh	Nov 2005	Dec 2024	Wind
Whitewater Hill Wind Partners	Shell Wind Energy Inc.	North Palm Springs, CA	128 GWh	Sep 2002	Dec 2024	Wind
Forbestown	South Feather Water and Power Agency	Forbestown, CA	129 GWh	Sep 1963	Dec 2024	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#26	Arizona Public Service Company	24.6 TWh	92
#54	Arlington Valley, LLC	3.3 TWh	1
#37	Balancing Authority of Northern California	14.1 TWh	87
#48	Imperial Irrigation District	6.3 TWh	66
#30	Los Angeles Department of Water and Power	18.4 TWh	124
#22	Nevada Power Company	36.8 TWh	139
#64	New Harquahala Generating Company, LLC	32.9 GWh	1
#19	Salt River Project Agricultural Improvement and Power District	60.0 TWh	48
#57	Turlock Irrigation District	2.0 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.	488.2 TWh	1,313
#5	Southwest Power Pool	302.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	176.8 TWh	2,075
#9	Tennessee Valley Authority	163.1 TWh	204
#10	Florida Power & Light Co.	150.9 TWh	187
#12	New York Independent System Operator	134.4 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565
#15	ISO New England	111.1 TWh	1,577
#16	Bonneville Power Administration	88.3 TWh	163