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
Point Wind	Terra-Gen Operating Co-Wind	Tehachapi, CA	218 GWh	Feb 2021	Jul 2026	Wind
Coachella Hills Wind	Terra-Gen Operating Co-Wind	Palm Springs, CA	202 GWh	Feb 2021	Jul 2026	Wind
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	79 GWh	Nov 2018	Dec 2025	Wind
Voyager Wind III	Terra-Gen Operating Co-Wind	Mojave, CA	117 GWh	Nov 2018	Jul 2026	Wind
Voyager Wind II	Terra-Gen Operating Co-Wind	Mojave, CA	419 GWh	Nov 2018	Jul 2026	Wind
E&B Resources	Terraform Arcadia	Bakersfield, CA	2 GWh	Nov 2013	Dec 2025	Solar
Corcoran	Terraform Arcadia	Corcoran, CA	2 GWh	Dec 2013	Dec 2025	Solar
Morgan Lancaster 1	Terraform Arcadia	Lancaster, CA	818 MWh	Aug 2015	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
Division 3	Tesla Inc.	Lancaster, CA	1 GWh	May 2014	Dec 2025	Solar
Division 2	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Dec 2025	Solar
Kettering Solar 1	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Nov 2025	Solar
Kettering Solar 2	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Nov 2025	Solar
Division 1	Tesla Inc.	Lancaster, CA	2 GWh	May 2014	Dec 2025	Solar
Las Virgenes Municipal Water District	Tesla Inc.	Calabasas, CA	1 GWh	Jan 2014	Dec 2025	Solar
Lancaster Baptist Church	Tesla Inc.	Lancaster, CA	1 GWh	Nov 2011	Dec 2025	Solar
Monterey Regional Water Pollution Contro	Tesla Inc.	Marina, CA	1 GWh	Nov 2010	Dec 2025	Solar
Fremont CA AutoFactory	Tesla Inc.	Fremont, CA	524 MWh	Feb 2022	Dec 2025	Solar
Genentech-Oceanside Hybrid	Tesla Inc.	Oceanside, CA	6 GWh	Mar 2016	Dec 2025	Solar
Walnut Unified School District Walnut HS	Tesla Inc.	Walnut, CA	327 MWh	Jan 2020	Jun 2025	Solar
Clovis High School	Tesla Inc.	Clovis, CA	2 GWh	Mar 2018	Dec 2025	Solar
Clovis East High School	Tesla Inc.	Clovis, CA	1 GWh	Mar 2018	Dec 2025	Solar
Clovis North High School	Tesla Inc.	Fresno, CA	2 GWh	Nov 2017	Dec 2025	Solar
Genentech Vacaville Meter #1	Tesla Inc.	Vacaville, CA	12 GWh	Apr 2017	Dec 2025	Solar
Fremont - Kato Rd	Tesla Inc.	Fremont, CA	2 GWh	Nov 2016	Dec 2025	Solar
Marathon Bay Area Cogen	Tesoro Marketing & Refining Co. LLC (Martinez)	Martinez, CA	598 GWh	Jan 1987	Jul 2026	Natural Gas
University of the Pacific	The Greater Light USA LLC	Stockton, CA	6 GWh	Apr 2022	Dec 2025	Solar
Berrenda Mesa Water District	The Greater Light USA LLC	Lost Hills, CA	15 GWh	Jun 2023	Nov 2025	Solar
THUMS	THUMS Long Beach Company	Long Beach, CA	158 GWh	Dec 2002	Jul 2026	Natural Gas
Titan Solar 1 (CA)	Titan Solar 1, LLC	Borrego Springs, CA	157 GWh	Nov 2020	Jul 2026	Solar
Topaz Solar Farm	Topaz Solar Farms LLC	Santa Margarita, CA	974 GWh	Mar 2013	Jul 2026	Solar
Cold Canyon 1	Toro Energy of California SLO	San Luis Obispo, CA	11 GWh	Jun 2013	Dec 2025	Landfill Gas
Torrance Refining Company, LLC	Torrance Refining Company, LLC	Torrance, CA	68 GWh	Aug 1983	Jul 2026	Other Gas : 56.6% Waste Heat : 43.4%
Kern Co Sheriff	TotalEnergies Renewables USA LLC	Bakersfield, CA	56 MWh	Jul 2025	Dec 2025	Solar
Thermo Fisher Pleasanton	TotalEnergies Renewables USA LLC	Pleasanton, CA	1 GWh	Jun 2025	Dec 2025	Solar
Tranquillity ID	Tranquillity Solar 1, LLC	Tranquillity, CA	2 GWh	Feb 2018	Dec 2025	Solar
Transamerica Pyramid	Transamerica Pyramid Properties LLC	San Francisco, CA	4 MWh	Jun 2007	Dec 2025	Natural Gas
Sand Bar Power Plant	Tri-Dam Power Authority	Stanislaus Ntl. Fores, CA	83 GWh	Apr 1986	Dec 2025	Water
VS BC Pacific Gateway, LLC	TRITEC Americas	Los Angeles, CA	2 GWh	Feb 2025	Dec 2025	Solar
Trona Solar III	Trona Solar III LLC	Trona, CA	5 GWh	Mar 2023	Dec 2025	Solar
Luciana	Tulare Solar Center, LLC	Richgrove, CA	138 GWh	Mar 2022	Jul 2026	Solar
Frankenheimer Power Plant	Turlock Irrigation District	Oakdale, CA	11 GWh	Feb 1983	Dec 2025	Water
US Borax	U S Borax Inc	Boron, CA	263 GWh	Jun 1984	Jul 2026	Natural Gas
UCI Facilities Management Central Plant	University of California Irvine	Irvine, CA	114 GWh	Jun 2007	Jul 2026	Natural Gas
Univ of California San Diego Solar	University of California San Diego	La Jolla, CA	4 GWh	Nov 2008	Dec 2025	Solar
University of California San Diego Hybri	University of California San Diego	La Jolla, CA	227 GWh	Jun 2001	Jul 2026	Natural Gas
University of California Santa Cruz	University of California Santa Cruz	Santa Cruz, CA	34 GWh	Aug 2013	Dec 2025	Natural Gas : 91.4% Solar : 8.6%
Parnassus Central Utility Plant	University of California-San Francisco	San Francisco, CA	67 GWh	Dec 1995	Jul 2026	Natural Gas
Energy Center	University of Redlands	Redlands, CA	4 GWh	Jan 2007	Dec 2025	Natural Gas
Univ of San Francisco Cogen	University of San Francisco	San Francisco, CA	5 GWh	Aug 1987	Dec 2024	Natural Gas
Angels	Utica Water & Power Authority	Angels Camp, CA	6 GWh	Dec 1939	Dec 2025	Water
Murphys	Utica Water & Power Authority	Murphys, CA	15 GWh	Feb 1954	Dec 2025	Water
Valero Refinery Cogeneration Unit 1	Valero Refining Co California	Benicia, CA	237 GWh	Sep 2002	Feb 2026	Natural Gas : 85.2% Other Gas : 14.8%
9150 Hermosa Solar GM	Valta Energy	Rancho Cucamonga, CA	3 GWh	Nov 2022	Dec 2025	Solar
Vasco Winds	Vasco Winds, LLC	Livermore, CA	234 GWh	Nov 2011	Oct 2025	Wind
Vega Solar	Vega Solar, LLC	Los Banos, CA	49 GWh	Feb 2015	Dec 2025	Solar
Ventura Solar	Ventura Solar LLC	Fillmore, CA	6 GWh	Aug 2021	Dec 2025	Solar
Verizon Comms Garage Top Solar Project	Verizon Communications	San Jose, CA	348 MWh	Aug 2025	Jun 2025	Solar
Victory Pass	Victory Pass I, LLC	Desert Center, CA	563 GWh	Feb 2024	Jul 2026	Solar
Bio-Rad	Vista Solar, Inc.	Hercules, CA	3 GWh	Sep 2021	Dec 2025	Solar
Shelter Creek Condominiums Solar	Vista Solar, Inc.	San Bruno, CA	3 GWh	Jan 2020	Dec 2025	Solar
Wadham Energy	Wadham Energy LP	Williams, CA	145 GWh	Feb 1989	Dec 2025	Agricultural By-Products : 99.7%
Walnut Creek Energy Park	Walnut Creek LLC	Industry, CA	48 GWh	Mar 2013	Jul 2026	Natural Gas
Watkins Manufacturing Co.	Watkins Manufacturing Corporation	San Diego, CA	8 GWh	Oct 2001	Jul 2026	Natural Gas
McKittrick Limited	WCAC Operating Company	Bakersfield, CA	5 GWh	Sep 1991	Jul 2026	Natural Gas
High Sierra Limited	WCAC Operating Company	Bakersfield, CA	6 GWh	Feb 1989	Dec 2025	Natural Gas
Kern Front Limited	WCAC Operating Company	Bakersfield, CA	5 GWh	Jan 1989	Dec 2025	Natural Gas
Double C Generation Limited Partnership	WCAC Operating Company	Bakersfield, CA	6 GWh	Feb 1989	Dec 2025	Natural Gas
Chalk Cliff Limited	WCAC Operating Company	Bakersfield, CA	3 GWh	Feb 1990	Jun 2026	Natural Gas
Badger Creek Limited	WCAC Operating Company	Bakersfield, CA	4 GWh	Mar 1991	Jul 2026	Natural Gas
Bear Mountain Limited	WCAC Operating Company	Bakersfield, CA	38 GWh	Mar 1995	Jul 2026	Natural Gas
Live Oak Limited	WCAC Operating Company	Bakersfield, CA	18 GWh	Feb 1992	Jul 2026	Natural Gas
Escondido Energy Center	Wellhead Services, Inc	Escondido, CA	3 GWh	Dec 2013	Dec 2025	Natural Gas
Yuba City Cogen Partners	Wellhead Services, Inc	Yuba City, CA	15 GWh	Nov 1990	Dec 2025	Natural Gas
El Cajon Energy Center	Wellhead Services, Inc	El Cajon, CA	20 GWh	May 2010	Dec 2025	Natural Gas
Chula Vista Energy Center	Wellhead Services, Inc	Chula Vista, CA	387 MWh	Apr 2001	Oct 2025	Natural Gas
Delano Energy Center	Wellhead Services, Inc	Delano, CA	5 GWh	Dec 2012	Oct 2025	Natural Gas
Wellhead Power Panoche	Wellhead Services, Inc	Firebaugh, CA	7 GWh	Jul 1973	Dec 2025	Natural Gas
Fresno Cogen Partners	Wellhead Services, Inc	San Joaquin, CA	840 MWh	Dec 1989	Dec 2025	Natural Gas
Fresno Solar	Wellhead Services, Inc	San Joaquin, CA	5 GWh	Sep 2015	Aug 2025	Solar
Stanton Energy Reliability Center Hybrid	Wellhead Services, Inc	Stanton, CA	2 GWh	Jun 2020	Jul 2026	Natural Gas
West Tambo Clean Power II	West Tambo Clean Power II	Livingston, CA	4 GWh	Oct 2024	Dec 2025	Solar
Sutter Home Winery GIR	Westbound Solar 3, LLC	American Canyon, CA	2 GWh	Jul 2023	Dec 2025	Solar
Western Power & Steam Inc	Western Power and Steam II LLC	Bakersfield, CA	21 GWh	Feb 1990	Jul 2026	Natural Gas
Almond	Westlands Almond LLC	Lemoore, CA	49 GWh	Aug 2023	Dec 2025	Solar
Solar Blue	Westlands Solar Blue	Lemoore, CA	645 GWh	Nov 2023	Jul 2026	Solar
Westside Solar Power PV1	Westside Assets LLC	Lemoore, CA	5 GWh	Apr 2016	Dec 2024	Solar
NextEra Westside PV	Westside Solar, LLC	Five Points, CA	26 GWh	Feb 2017	Dec 2025	Solar
Whitethorn Solar LLC	Whitethorn Solar LLC	Livermore, CA	5 GWh	Jan 2016	Dec 2025	Solar
Whitney Point Solar	Whitney Point Solar, LLC	Five Points, CA	54 GWh	Feb 2017	Dec 2025	Solar
Willow Spring Solar, LLC	Willow Spring Solar LLC	Rosamond, CA	220 GWh	Dec 2018	Jul 2026	Solar
Victory Garden (Tehachapi)	Wind Stream Operations LLC	Tehachapi, CA	33 GWh	Nov 1981	Dec 2024	Wind
ZCO	Wind Stream Operations LLC	Tehachapi, CA	1 GWh	Nov 1985	Dec 2024	Wind
Helzel & Schwarzhoff 86	Wind Stream Operations LLC	Tehachapi, CA	3 GWh	Nov 1986	Dec 2024	Wind
85 B	Wind Wall 1 LLC	Tehachapi, CA	93 GWh	Dec 1984	Dec 2025	Wind
85 A	Wind Wall 1 LLC	Tehachapi, CA	71 GWh	Dec 1984	Dec 2025	Wind
Waste Mangement Redwood LFGTE	WM Renewable Energy LLC	Novato, CA	22 GWh	Apr 2017	Dec 2025	Landfill Gas
Altamont Gas Recovery	WM Renewable Energy LLC	Livermore, CA	39 GWh	Feb 1969	Dec 2025	Landfill Gas
Wonderful Orchards - Belridge	Wonderful Renewable Energy, LLC.	Lost Hills, CA	12 GWh	Nov 2020	Dec 2025	Solar

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