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

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Frontier Solar LLC	Boralex US Operations LLC	Newman, CA	48 GWh	May 2016	Dec 2025	Solar
Windhub Solar A LLC	EDP Renewables North America LLC	Mojave, CA	48 GWh	Nov 2019	Dec 2025	Solar
RE Gaskell West 5 LLC	RE Gaskell West LLC	Rosamond, CA	48 GWh	Apr 2023	Dec 2025	Solar
Walnut Creek Energy Park	Walnut Creek LLC	Industry, CA	48 GWh	Mar 2013	Jul 2026	Natural Gas
Corcoran Solar 3	RWE Clean Energy	Corcoran, CA	48 GWh	Jan 2016	Dec 2025	Solar
Wildwood Solar I, LLC	Deriva Energy	Wasco, CA	48 GWh	Jan 2015	Dec 2025	Solar
TA-Acacia, LLC	Onward Energy	Lancaster, CA	48 GWh	Oct 2014	Dec 2025	Solar
Dome Project	Sentinel Peak Resources California, LLC	Fellows, CA	48 GWh	Jul 1988	Dec 2025	Natural Gas
RE Rosamond Two LLC	MN8 Energy LLC	Rosamond, CA	49 GWh	Dec 2013	Dec 2025	Solar
White River Solar 2	RWE Clean Energy	Alpaugh, CA	49 GWh	Aug 2014	Dec 2025	Solar
Almond	Westlands Almond LLC	Lemoore, CA	49 GWh	Aug 2023	Dec 2025	Solar
Oro Loma	RWE Clean Energy	Oro Loma, CA	49 GWh	Dec 2016	Dec 2025	Solar
Oasis Alta	Terra-Gen Operating Co-Wind	Mojave, CA	49 GWh	Mar 2021	Dec 2025	Wind
Vega Solar	Vega Solar, LLC	Los Banos, CA	49 GWh	Feb 2015	Dec 2025	Solar
Alamo Solar	Onward Energy	Oro Grande, CA	49 GWh	Apr 2015	Dec 2025	Solar
Antelope Big Sky Ranch	AES Distributed Energy	Lancaster, CA	50 GWh	Jul 2016	Dec 2025	Solar
Maricopa West Solar PV, LLC	Onward Energy	Taft, CA	50 GWh	Nov 2015	Dec 2025	Solar
RE Kansas South LLC	RE Kansas South LLC	Lemoore, CA	51 GWh	May 2013	Dec 2025	Solar
Pumpjack Solar I	Deriva Energy	McKittrick, CA	51 GWh	Dec 2014	Dec 2025	Solar
RE Gaskell West 3 LLC	RE Gaskell West LLC	Rosamond, CA	51 GWh	Apr 2023	Dec 2025	Solar
RE Rosamond One LLC	MN8 Energy LLC	Rosamond, CA	51 GWh	Dec 2013	Dec 2025	Solar
Cascade Solar	Cascade Solar LLC	Joshua Tree, CA	51 GWh	Dec 2013	Dec 2025	Solar
CED Ducor 2	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
Rio Bravo Solar II LLC	Deriva Energy	McKittrick, CA	52 GWh	Nov 2016	Dec 2025	Solar
San Gorgonio Farms Wind Farm	San Gorgonio Farms Inc	Whitewater, CA	52 GWh	Feb 1983	Dec 2025	Wind
CED Ducor 4	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
Atwell Island West Solar	RWE Clean Energy	Alpaugh, CA	52 GWh	Apr 2015	Dec 2025	Solar
Rio Bravo Solar 1 LLC	Deriva Energy	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
CED Ducor 1	RWE Clean Energy	Ducor, CA	52 GWh	Nov 2016	Dec 2025	Solar
SEPV Mojave West	AES Distributed Energy	Mojave, CA	53 GWh	May 2016	Dec 2025	Solar
Portal Ridge Solar B, LLC	Portal Ridge Solar, LLC	Lancaster, CA	53 GWh	Jan 2017	Dec 2025	Solar
Solar Oasis LLC	Solar Oasis, LLC	Palmdale, CA	53 GWh	Dec 2015	Dec 2025	Solar
Lockheed Martin Palmdale Solar PV	Lockheed Martin Corporation	Palmdale, CA	53 GWh	Apr 2016	Dec 2025	Solar
Lone Valley Solar Park II LLC	Lone Valley Solar Park II LLC	Lucerne Valley, CA	53 GWh	Nov 2014	Dec 2025	Solar
Axium Modesto Solar	Axium US Solar Holdings LLC	Modesto, CA	53 GWh	Nov 2012	Dec 2025	Solar
Cymric 36W Cogen	Chevron USA Inc	McKittrick, CA	53 GWh	Sep 1982	Dec 2025	Natural Gas
Rising Tree Wind Farm II	Rising Tree Wind Farm II LLC	Mojave, CA	54 GWh	Dec 2014	Dec 2025	Wind
Whitney Point Solar	Whitney Point Solar, LLC	Five Points, CA	54 GWh	Feb 2017	Dec 2025	Solar
Longboat Solar, LLC	Deriva Energy	Barstow, CA	54 GWh	Nov 2016	Dec 2025	Solar
Sunray 2	Sunray Energy 2, LLC	Daggett, CA	55 GWh	Nov 1984	Dec 2025	Solar
Antelope DSR 3	AES Distributed Energy	Lancaster, CA	55 GWh	Aug 2019	Dec 2025	Solar
Kingbird B Solar, LLC	Arevon Energy, Inc.	Rosamond, CA	55 GWh	Mar 2016	Dec 2025	Solar
Catalina Solar 2, LLC	Onward Energy	Rosamond, CA	55 GWh	Jul 2015	Dec 2025	Solar
Gaskell West 1 Solar Facility	Southern Power Co	Lancaster, CA	56 GWh	Feb 2018	Dec 2025	Solar
Summer Solar LLC	AES Distributed Energy	Lancaster, CA	56 GWh	Jun 2016	Dec 2025	Solar
Potrero Hills Energy Producers	Potrero Hills Energy Producers, LLC	Suisun City, CA	56 GWh	Mar 2016	Dec 2025	Landfill Gas
Beardsley	Oakdale&South San Joaquin Irrigation D.	None, CA	56 GWh	Apr 1957	Dec 2025	Water
RE Garland A	Southern Power Co	Rosamond, CA	57 GWh	Aug 2016	Dec 2025	Solar
P66 Rodeo Solar	P66 Rodeo Solar	Rodeo, CA	57 GWh	Mar 2023	Jul 2026	Solar
Edwards Sanborn E3	Terra-Gen Operating Co-Hybrid	Mojave, CA	57 GWh	Nov 2021	Jul 2026	Solar
Oak Creek Energy Systems I	Terra-Gen Operating Co-Wind	Mojave, CA	57 GWh	May 1982	Dec 2025	Wind
Alpaugh 50	RWE Clean Energy	Alpaugh, CA	57 GWh	Nov 2012	Dec 2025	Solar
TA-High Desert LLC	TA-High Desert LLC	Lancaster, CA	58 GWh	Feb 2013	Dec 2025	Solar
Forks of Butte Hydro Project	Hypower Energy, LLC	Magalia, CA	58 GWh	Feb 1992	Dec 2025	Water
RB Inyokern Solar WDAT 1203 (CSG)	Dimension Energy LLC	Ridgecrest, CA	58 GWh	Nov 2024	Dec 2025	Solar
Lost Hills/Blackwell	Southern Power Co	Lost Hills, CA	59 GWh	Mar 2015	Dec 2025	Solar
San Diego State University	San Diego State University	San Diego, CA	59 GWh	Aug 2002	Jul 2026	Natural Gas : 97.5% Solar : 2.5%
Adelanto Solar, LLC	Adelanto Solar, LLC	Adelanto, CA	59 GWh	Aug 2015	Dec 2025	Solar
Loma Linda University Cogen	Loma Linda University	Loma Linda, CA	61 GWh	Jan 1980	Jul 2026	Natural Gas
McKittrick Cogen	Chevron USA Inc	McKittrick, CA	61 GWh	May 2012	Dec 2025	Natural Gas
Solar Borrego I	NRG Solar Borrego I	Borrego Springs, CA	61 GWh	Jan 2013	Dec 2025	Solar
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%
Chevron - Lost Hills Hybrid	MN8 Energy LLC	Lost Hills, CA	63 GWh	Mar 2020	Jul 2026	Solar
El Segundo Energy Center LLC	NRG Energy Services LLC	El Segundo, CA	63 GWh	Jun 2013	Jul 2026	Natural Gas
Cuyama Solar, LLC	Cuyama Solar, LLC	Cuyama, CA	63 GWh	Oct 2017	Jul 2026	Solar
Greenleaf 2 Power Plant	Greenleaf Energy LLC	Yuba City, CA	64 GWh	Sep 1989	Jun 2026	Natural Gas
Glass House Camarillo Cultivation	Glass House Camarillo Cultivation	Camarillo, CA	64 GWh	Jul 2012	Dec 2025	Natural Gas
Chicago Park	Nevada Irrigation District	Colfax, CA	65 GWh	Oct 1965	Dec 2025	Water
Alamo	California Dept. of Water Resources	Pearblossom, CA	66 GWh	Jun 1986	Dec 2025	Water
Dutch Flat	Pacific Gas & Electric Co.	Alta, CA	66 GWh	Feb 1943	Dec 2025	Water
Mojave 16/17/18	Terra-Gen Operating Co-Wind	Mojave, CA	66 GWh	Nov 1989	Dec 2025	Wind
Parnassus Central Utility Plant	University of California-San Francisco	San Francisco, CA	67 GWh	Dec 1995	Jul 2026	Natural Gas
SJ/SC WPCP	San Jose/Santa Clara Water P C	San Jose, CA	67 GWh	Jan 1953	Jul 2026	Natural Gas : 54.3% Other Biomass Gas : 45.6%
Torrance Refining Company, LLC	Torrance Refining Company, LLC	Torrance, CA	68 GWh	Aug 1983	Jul 2026	Other Gas : 56.6% Waste Heat : 43.4%
MCAGCC Cogen Plant	DOD USMC Marine Air Ground Combat	Twentynine Palms, CA	68 GWh	Jan 2003	Dec 2025	Natural Gas
Kelly Ridge	South Feather Water and Power Agency	Oroville, CA	69 GWh	Aug 1963	Dec 2025	Water
Little Bear Solar 1, LLC	Little Bear Solar 1, LLC (Longroad)	Mendota, CA	71 GWh	Nov 2020	Jul 2026	Solar
85 A	Wind Wall 1 LLC	Tehachapi, CA	71 GWh	Dec 1984	Dec 2025	Wind
Balch 1	Pacific Gas & Electric Co.	Balch Camp, CA	71 GWh	Jan 1927	Dec 2025	Water
Central 40	Central 40, LLC	Newman, CA	72 GWh	Jan 2021	Jul 2026	Solar
Narrows PH	Yuba County Water Agency - (CA)	Grass Valley, CA	73 GWh	Nov 1942	Dec 2025	Water
Friant Hydro Facility	Friant Power Authority	Friant, CA	73 GWh	Mar 1985	Dec 2025	Water
California Institute of Technology	California Institute-Technology	Pasadena, CA	74 GWh	Jul 2003	Jul 2026	Natural Gas
CP Kelco San Diego Plant	CP Kelco US Inc.	San Diego, CA	75 GWh	Sep 1983	Jul 2026	Natural Gas
Mammoth G3	Ormat Nevada Inc	Mammoth Lakes, CA	75 GWh	Nov 1990	Dec 2025	Geothermal
Berry NMW Cogens	Berry Petroleum Co	Bakersfield, CA	76 GWh	Oct 2017	Dec 2025	Natural Gas
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	79 GWh	Nov 2018	Dec 2025	Wind
Pardee	East Bay Municipal Util Dist - (CA)	Valley Springs, CA	80 GWh	Jun 1930	Dec 2025	Water
Mesa Wind Repower	Mesa Wind Repower	Whitewater, CA	80 GWh	May 2024	Dec 2024	Wind
Sierra Pacific Lincoln Facility	Sierra Pacific Industries	Lincoln, CA	80 GWh	Feb 2004	Dec 2025	Wood/Wood Waste Solids
Edwards Sanborn S3	Terra-Gen Operating Co-Hybrid	Mojave, CA	80 GWh	Feb 2022	Jul 2026	Solar
El Dorado	El Dorado Irrigation District	Pollock Pines, CA	81 GWh	Dec 1923	Dec 2025	Water
Five Points Solar Park	Boralex US Operations LLC	Five Points, CA	81 GWh	Aug 2016	Dec 2025	Solar
Mountain View III	Avangrid Power LLC	North Palm Springs, CA	81 GWh	Nov 2003	Dec 2025	Wind
Kings River PH	Pacific Gas & Electric Co.	Balch Camp, CA	81 GWh	Feb 1962	Dec 2025	Water
Borden Solar Farm	41MB 8me, LLC	Madera, CA	82 GWh	May 2020	Jul 2026	Solar
Aidlin Geothermal Power Plant	Geysers Power Co LLC	Middletown, CA	82 GWh	Apr 1989	Dec 2025	Geothermal
Sand Bar Power Plant	Tri-Dam Power Authority	Stanislaus Ntl. Fores, CA	83 GWh	Apr 1986	Dec 2025	Water
Ameresco Ox Mountain	AMERESCO Ox Mountain Energy LLC	Half Moon Bay, CA	83 GWh	Nov 2008	Jul 2026	Landfill Gas

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