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%

Map of California Independent System Operator

Register Now for Comprehensive Access

Subscribe now to access all power plant data, utility information, FERC EQR data, and more for California Independent System Operator.

Create Your Account Today

Daily Net Generation for California Independent System Operator for the past 3 Years

Download Generation

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Mojave Solar Project	Mojave Solar LLC	Hinkley, CA	586 GWh	Nov 2014	Feb 2026	Solar
Marsh Landing Generating Station	Marsh Landing LLC	Antioch, CA	15 GWh	Apr 2013	Feb 2026	Natural Gas
UCI Facilities Management Central Plant	University of California Irvine	Irvine, CA	113 GWh	Jun 2007	Feb 2026	Natural Gas
Ivanpah 3	NRG Energy Services	Nipton, CA	231 GWh	Nov 2013	Feb 2026	Solar : 96.2% Natural Gas : 3.8%
Ivanpah 2	NRG Energy Services	Nipton, CA	229 GWh	Nov 2013	Feb 2026	Solar : 95.5% Natural Gas : 4.5%
Canyon Power Plant	City of Anaheim - (CA)	Anaheim, CA	14 GWh	Jul 2011	Feb 2026	Natural Gas
Ameresco Ox Mountain	AMERESCO Ox Mountain Energy LLC	Half Moon Bay, CA	81 GWh	Nov 2008	Feb 2026	Landfill Gas
Panoche Energy Center	Panoche Energy Center, LLC	Firebaugh, CA	669 GWh	May 2009	Feb 2026	Natural Gas
Carlsbad Energy Center	NRG California Peaker Operations LLC	Carlsbad, CA	193 GWh	Nov 2018	Feb 2026	Natural Gas
Colusa Generating Station	Pacific Gas & Electric Co.	Maxwell, CA	2 TWh	Nov 2010	Feb 2026	Natural Gas
Gateway Generating Station	Pacific Gas & Electric Co.	Antioch, CA	3 TWh	Dec 2008	Feb 2026	Natural Gas
SC 1 Data Center, Phase 2	Xeres Ventures LLC	Santa Clara, CA	386 MWh	Aug 2011	Feb 2026	Distillate Fuel Oil
Russell City Energy Center	Russell City Energy Company LLC	Hayward, CA	2 TWh	Jul 2013	Feb 2026	Natural Gas
Miramar Energy Facility	San Diego Gas & Electric Co	San Diego, CA	6 GWh	May 2005	Feb 2026	Natural Gas
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%
THUMS	THUMS Long Beach Company	Long Beach, CA	159 GWh	Dec 2002	Feb 2026	Natural Gas
Malburg	City of Vernon	Vernon, CA	306 GWh	Sep 2005	Feb 2026	Natural Gas
WWTP Power Generation Station	East Bay Municipal Util Dist	Oakland, CA	30 GWh	Jul 1985	Feb 2026	Other Biomass Gas : 99.0% Distillate Fuel Oil : 1.0%
Donald Von Raesfeld Power Plant	City of Santa Clara - (CA)	Santa Clara, CA	777 GWh	Feb 2005	Feb 2026	Natural Gas
Palomar Energy	San Diego Gas & Electric Co	Escondido, CA	1 TWh	Sep 2005	Feb 2026	Natural Gas
Elk Hills Cogen	California Resources Elk Hills LLC	Tupman, CA	41 GWh	Oct 1994	Feb 2026	Natural Gas
Tracy Combined Cycle Power Plant	MRP San Joaquin Energy LLC.	Tracy, CA	841 GWh	Mar 2003	Feb 2026	Natural Gas
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%
Los Esteros Critical Energy Center	Los Esteros Critical Energy Facility LLC	San Jose, CA	152 GWh	Jan 2003	Feb 2026	Natural Gas
Mountain View I & II	AES Distributed Energy	North Palm Springs, CA	260 GWh	May 2001	Feb 2026	Wind
Pastoria Energy Facility, LLC	Calpine Corp - Pastoria Energy Center	Lebec, CA	4 TWh	Apr 2005	Feb 2026	Natural Gas
Golden Acorn Casino	Foundation HA Energy Generation, LLC	Campo, CA	4 GWh	Jun 2014	Feb 2026	Wind
Anheuser-Busch #2	Foundation HA Energy Generation, LLC	Fairfield, CA	4 GWh	Oct 2014	Feb 2026	Wind
Elk Hills Power LLC	Elk Hills Power LLC	Tupman, CA	3 TWh	Jun 2003	Feb 2026	Natural Gas
Metcalf Energy Center	Calpine Corp - Metcalf Energy Center	San Jose, CA	2 TWh	May 2005	Feb 2026	Natural Gas
Otay Mesa Generating Project	Otay Mesa Energy Center LLC	San Diego, CA	1 TWh	Sep 2009	Feb 2026	Natural Gas
Delta Energy Center	Delta Energy Center LLC	Pittsburg, CA	4 TWh	Apr 2002	Feb 2026	Natural Gas
Los Medanos Energy Center	Los Medanos Energy Center LLC	Pittsburg, CA	2 TWh	Jul 2001	Feb 2026	Natural Gas
Sunrise Power LLC	Sunrise Power Co LLC	Fellows, CA	2 TWh	May 2001	Feb 2026	Natural Gas
La Paloma Generating Plant	CXA La Paloma LLC	McKittrick, CA	1 TWh	Dec 2002	Feb 2026	Natural Gas
Crockett Cogen Project	Crockett Cogeneration	Crockett, CA	1 TWh	Nov 1995	Feb 2026	Natural Gas
Desert Star Energy Center	Desert Star Energy Center SDG&E	Boulder City, NV	371 GWh	Apr 2000	Feb 2026	Natural Gas
Martinez Refining	Martinez Refining Co	Martinez, CA	725 GWh	Oct 1995	Feb 2026	Natural Gas : 96.7% Other Gas : 3.3%
Saint Agnes Medical Center	Saint Agnes Medical Center	Fresno, CA	34 GWh	Apr 2001	Feb 2026	Natural Gas
Live Oak Limited	WCAC Operating Company	Bakersfield, CA	21 GWh	Feb 1992	Feb 2026	Natural Gas
Collierville Powerhouse	Northern California Power Agny	Murphys, CA	375 GWh	Oct 1989	Feb 2026	Water
W Plant	Qualcomm Incorporated	San Diego, CA	24 GWh	Jun 2005	Feb 2026	Natural Gas
Wright Solar Park	Wright Solar Park LLC	Los Banos, CA	403 GWh	Nov 2019	Feb 2026	Solar
Biola University Hybrid	Biola University	La Mirada, CA	13 GWh	Mar 1990	Feb 2026	Natural Gas
Borden Solar Farm	41MB 8me, LLC	Madera, CA	107 GWh	May 2020	Feb 2026	Solar
CP Kelco San Diego Plant	CP Kelco US Inc.	San Diego, CA	75 GWh	Sep 1983	Feb 2026	Natural Gas
Richmond Cogen	Chevron Products Company-Richmond	Richmond, CA	979 GWh	Jul 1992	Feb 2026	Natural Gas : 97.6% Other Gas : 2.4%
Kern River Eastridge Cogen	Chevron USA Inc	Bakersfield, CA	219 GWh	May 1988	Feb 2026	Natural Gas
Berry Placerita Cogen	Shadow Wolf Energy	Santa Clarita, CA	4 GWh	Feb 1990	Feb 2026	Natural Gas
Taft 26C Cogen	Chevron USA Inc	Taft, CA	40 GWh	Jun 1982	Feb 2026	Natural Gas
Dixie Valley	Ormat Nevada Inc	Fallon, NV	456 GWh	May 1988	Feb 2026	Geothermal
Wheelabrator Shasta	Shasta Sustainable Resource Management, Inc.	Anderson, CA	286 GWh	Sep 1987	Feb 2026	Wood/Wood Waste Solids
Salinas River Cogeneration	Salinas River Cogeneration Co	San Ardo, CA	253 GWh	Oct 1991	Feb 2026	Natural Gas
PE Berkeley	Berkeley Cogeneration Facility	Berkeley, CA	151 GWh	May 1987	Feb 2026	Natural Gas
South Belridge Cogeneration Facility	AERA Energy LLC	McKittrick, CA	473 GWh	Nov 1985	Feb 2026	Natural Gas
Southeast Kern River Cogen	Chevron USA Inc	Bakersfield, CA	28 GWh	Jan 1989	Feb 2026	Natural Gas
Sunshine Valley Solar	EDP Renewables North America LLC	Armagosa, NV	260 GWh	Nov 2019	Feb 2026	Solar
Municipal Cogen Plant	Palm Springs City of	Palm Springs, CA	7 GWh	Apr 1985	Feb 2026	Natural Gas
Torrance Refining Company, LLC	Torrance Refining Company, LLC	Torrance, CA	74 GWh	Aug 1983	Feb 2026	Other Gas : 66.2% Waste Heat : 33.8%
Berry Cogen Tanne Hills 18	Berry Petroleum Co	Maricopa, CA	139 GWh	Nov 1986	Feb 2026	Natural Gas
Little Bear Solar 1, LLC	Little Bear Solar 1, LLC (Longroad)	Mendota, CA	60 GWh	Nov 2020	Feb 2026	Solar
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%
Desert Quartzite	Desert Quartzite LLC	Blythe, CA	830 GWh	Nov 2024	Feb 2026	Solar
SRI International Cogen Project	IPT SRI Cogeneration Inc	Menlo Park, CA	24 GWh	Mar 1987	Feb 2026	Natural Gas
North Rosamond Solar LLC	North Rosamond Solar, LLC	Rosamond, CA	391 GWh	May 2019	Feb 2026	Solar
Mesa Wind Power LLC	Brookfield Renewable Trading and Marketing LP	North Palm Springs, CA	117 GWh	Oct 1984	Feb 2026	Wind
Painted Hills Wind Park	Terra-Gen Operating Co-Wind	Whitewater, CA	161 GWh	Oct 1985	Feb 2026	Wind
Gas Utilization Facility	City of San Diego	San Diego, CA	30 GWh	May 1985	Feb 2026	Other Biomass Gas
Oxnard	Procter&Gamble Paper Products Co-Oxnard	Oxnard, CA	482 GWh	Jun 1982	Feb 2026	Natural Gas
Great Valley Solar Portfolio Holdings, L	Consolidated Edison Development Inc.	Cantua Creek, CA	493 GWh	Nov 2017	Feb 2026	Solar
AltaGas Ripon Energy Inc.	AltaGas Ripon Energy Inc.	Ripon, CA	396 MWh	Mar 1988	Feb 2026	Natural Gas
Elevation Solar C	AES Distributed Energy	Lancaster, CA	101 GWh	Nov 2016	Feb 2026	Solar
RE Astoria	RE Astoria LLC	Rosamond, CA	182 GWh	Nov 2016	Feb 2026	Solar
RE Astoria 2	RE Astoria 2 LLC	Rosamond, CA	148 GWh	Nov 2016	Feb 2026	Solar
Oxnard Wastewater Treatment Plant	Oxnard City of	Oxnard, CA	3 GWh	Jul 1981	Feb 2026	Other Biomass Gas : 96.1% Natural Gas : 3.9%
Watson Cogeneration	ARCO Products Co-Watson	Carson, CA	2 TWh	Nov 1987	Feb 2026	Natural Gas : 77.2% Other Gas : 22.1% Waste/Other Oil : 0.7%
CA Flats Solar 130, LLC	California Flats Solar 130, LLC	Shandon, CA	263 GWh	Oct 2017	Feb 2026	Solar
CA Flats Solar 150, LLC	Arevon Energy, Inc.	Shandon, CA	309 GWh	Jan 2019	Feb 2026	Solar
Cuyama Solar, LLC	Cuyama Solar, LLC	Cuyama, CA	64 GWh	Oct 2017	Feb 2026	Solar
US Borax	U S Borax Inc	Boron, CA	267 GWh	Jun 1984	Feb 2026	Natural Gas
Calistoga Power Plant	Geysers Power Co LLC	Middletown, CA	456 GWh	Feb 1984	Feb 2026	Geothermal
San Diego State University	San Diego State University	San Diego, CA	56 GWh	Aug 2002	Feb 2026	Natural Gas : 97.2% Solar : 2.8%
Humboldt Sawmill Company	Mendocino Forest Products	Scotia, CA	105 GWh	Dec 1937	Feb 2026	Wood/Wood Waste Solids : 99.8%
Coso Power Developers	Coso Operating Co LLC	Inyokern, CA	311 GWh	Oct 1989	Feb 2026	Geothermal
Coso Finance Partners	Coso Operating Co LLC	Inyokern, CA	372 GWh	Jun 1987	Feb 2026	Geothermal
Blythe Solar II, LLC	Blythe Solar II, LLC	Blythe, CA	337 GWh	Jun 2016	Feb 2026	Solar
Blythe Solar III, LLC Hybrid	Blythe Solar III, LLC	Blythe, CA	358 GWh	Apr 2020	Feb 2026	Solar
Blythe Solar IV, LLC	Blythe Solar IV, LLC	Blythe, CA	356 GWh	Oct 2020	Feb 2026	Solar
Argus Cogen Plant	Searles Valley Minerals Operations Inc.	Trona, CA	227 GWh	Nov 1947	Feb 2026	Bituminous Coal : 92.5% Natural Gas : 7.5%
Solverde 1	AES Distributed Energy	Lancaster, CA	202 GWh	Nov 2016	Feb 2026	Solar
Badger Creek Limited	WCAC Operating Company	Bakersfield, CA	4 GWh	Mar 1991	Feb 2026	Natural Gas
Antelope DSR 1	AES Distributed Energy	Lancaster, CA	120 GWh	Nov 2016	Feb 2026	Solar
San Jose Cogeneration	San Jose State University Fclts Dev &Ops	San Jose, CA	35 GWh	Nov 1984	Feb 2026	Natural Gas
Kern River Cogeneration	Kern River Cogeneration Co	Bakersfield, CA	92 GWh	Jun 1985	Feb 2026	Natural Gas
Puente Hills Energy Recovery	Los Angeles County Sanitation	Whittier, CA	147 GWh	Sep 1986	Feb 2026	Landfill Gas
Lockhart Solar PV, LLC	Terra-Gen Operating Co-Solar	Hinkley, CA	241 GWh	Nov 1989	Feb 2026	Solar
New-Indy Ontario Mill	New-Indy Ontario LLC	Ontario, CA	245 GWh	May 1985	Feb 2026	Natural Gas
Greenleaf 2 Power Plant	Greenleaf Energy LLC	Yuba City, CA	39 GWh	Sep 1989	Feb 2026	Natural Gas
Marathon Bay Area Cogen	Tesoro Marketing & Refining Co. LLC (Martinez)	Martinez, CA	544 GWh	Jan 1987	Feb 2026	Natural Gas
King City Power Plant	Calpine King City Cogen LLC	King City, CA	22 GWh	Jan 1989	Feb 2026	Natural Gas

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