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
Alamo Solar	Onward Energy	Oro Grande, CA	49 GWh	Apr 2015	Dec 2025	Solar
Oro Loma	RWE Clean Energy	Oro Loma, CA	49 GWh	Dec 2016	Dec 2025	Solar
Kelly Ridge	South Feather Water and Power Agency	Oroville, CA	69 GWh	Aug 1963	Dec 2025	Water
Butte College Main Campus Solar	Butte-Glenn Community College District	Oroville, CA	7 GWh	Jun 2011	Dec 2025	Solar
Edward C Hyatt	California Dept. of Water Resources	Oroville, CA	2 TWh	Feb 1968	May 2026	Water
Thermalito	California Dept. of Water Resources	Oroville, CA	302 GWh	Jan 1968	May 2026	Water
Oroville Cogeneration, LLC	Apex Power Generation Corp.	Oroville, CA	116 MWh	Dec 1989	Dec 2025	Natural Gas
Thermalito Diverson Dam	California Dept. of Water Resources	Oroville, CA	10 GWh	Jun 1987	Dec 2025	Water
Oxnard Wastewater Treatment Plant	City of Oxnard - (CA)	Oxnard, CA	3 GWh	Jul 1981	May 2026	Other Biomass Gas : 97.6% Natural Gas : 2.4%
Ormond Beach	Ormond Beach Power, LLC	Oxnard, CA	5 GWh	Jul 1971	May 2026	Natural Gas
Oxnard Paper Mill	New-Indy, Oxnard LLC	Oxnard, CA	150 GWh	Feb 1986	May 2026	Natural Gas
McGrath Peaker	Southern California Edison Co	Oxnard, CA	3 GWh	Oct 2012	Dec 2025	Natural Gas
SunEdison Procter & Gamble Oxnard	SunE U6 Holdings LLC	Oxnard, CA	2 GWh	Sep 2009	Dec 2025	Solar
E F Oxnard Energy Facility	EF Oxnard, LLC	Oxnard, CA	8 GWh	May 1990	May 2026	Natural Gas
Oxnard	Procter&Gamble Paper Products Co-Oxnard	Oxnard, CA	425 GWh	Jun 1982	May 2026	Natural Gas
CA OXNARD 2600 Sakioka Dr	Catalyze Oxnard 2600 Sakioka Drive Microgrid, LLC	Oxnard, CA	3 GWh	Jun 2025	Dec 2025	Solar
IGS OXR1	Greenbacker Renewable Energy Corporation	Oxnard, CA	9 GWh	Jul 2024	Dec 2025	Solar
Panoche Valley Solar Farm	RWE Clean Energy	Paicines, CA	240 GWh	Dec 2017	May 2026	Solar
Orange Grove Peaking Facility	Orange Grove Energy LP	Pala, CA	9 GWh	May 2010	Dec 2025	Natural Gas
North Palm Springs 1A	Altus Power America Management, LLC	Palm Springs, CA	5 GWh	Mar 2012	Dec 2025	Solar
East Winds Project	Terra-Gen Operating Co-Wind	Palm Springs, CA	6 GWh	Nov 1983	Dec 2025	Wind
Municipal Cogen Plant	Palm Springs, City of - (CA)	Palm Springs, CA	7 GWh	Apr 1985	May 2026	Natural Gas
Garnet Solar Generation Station I LLC	Garnet Solar Generation Station I LLC	Palm Springs, CA	9 GWh	Nov 2014	Dec 2024	Solar
North Palm Springs 4A	Altus Power America Management, LLC	Palm Springs, CA	8 GWh	Sep 2012	Dec 2025	Solar
Wagner Wind LLC	Greenbacker Renewable Energy Corporation	Palm Springs, CA	10 GWh	Nov 2012	Dec 2025	Wind
Coachella Hills Wind	Terra-Gen Operating Co-Wind	Palm Springs, CA	201 GWh	Feb 2021	May 2026	Wind
Palm Springs DAC PV	Palm Springs USD	Palm Springs, CA	1 GWh	Mar 2021	Dec 2025	Solar
Green Beanworks D PV	AES Distributed Energy	Palmdale, CA	6 GWh	Jul 2018	Dec 2025	Solar
Green Beanworks C PV	AES Distributed Energy	Palmdale, CA	8 GWh	Jul 2018	Dec 2025	Solar
One Ten Partners PV	One Ten Partners, LLC	Palmdale, CA	6 GWh	Aug 2017	Dec 2025	Solar
Solar Oasis LLC	Solar Oasis, LLC	Palmdale, CA	53 GWh	Dec 2015	Dec 2025	Solar
SEPV 18	AES Distributed Energy	Palmdale, CA	4 GWh	Dec 2015	Dec 2025	Solar
SEPV 1	CVI CleanCapital Solar 1 LLC	Palmdale, CA	3 GWh	Apr 2012	Dec 2025	Solar
L-8 Solar Project	L-8 Solar Project LLC	Palmdale, CA	2 GWh	Apr 2012	Dec 2025	Solar
Rutan	CD US Solar MT 2 LLC	Palmdale, CA	3 GWh	Dec 2013	Dec 2025	Solar
Arrache 8083	CD US Solar MT 2 LLC	Palmdale, CA	3 GWh	Aug 2013	Dec 2025	Solar
Arrache 4013	CD US Solar MT 2 LLC	Palmdale, CA	4 GWh	Jul 2013	Dec 2025	Solar
Arrache 4006	CD US Solar MT 2 LLC	Palmdale, CA	2 GWh	Jul 2013	Dec 2025	Solar
Heliocentric	Heliocentric LLC	Palmdale, CA	2 GWh	Feb 2012	Dec 2025	Solar
SEPV Palmdale East	AES Distributed Energy	Palmdale, CA	24 GWh	Jul 2015	Dec 2025	Solar
Solar Star Palo Alto I, LLC	DG 1 Acquisition Co., LLC	Palo Alto, CA	2 GWh	Jul 2019	Dec 2025	Solar
KSR053 Cantara Fuel Cell	2016 ESA Project Company, LLC	Panorama City, CA	12 GWh	Apr 2018	Dec 2025	Natural Gas
Ameresco Butte County	Ameresco Butte County LLC	Paradise, CA	15 GWh	Jan 2013	Dec 2025	Landfill Gas
Caltech Central	Bloom Energy 2009 PPA	Pasadena, CA	8 GWh	Oct 2010	Dec 2025	Natural Gas
Glenarm	City of Pasadena - (CA)	Pasadena, CA	130 GWh	Dec 1975	Dec 2025	Natural Gas
California Institute of Technology	California Institute-Technology	Pasadena, CA	60 GWh	Jul 2003	May 2026	Natural Gas
CalTech - Pasadena Wilson Ave	Bloom Energy	Pasadena, CA	19 GWh	Nov 2019	Dec 2025	Natural Gas
CalTech - Pasadena (PPA)	Bloom Energy 2009 PPA	Pasadena, CA	7 GWh	Feb 2016	Dec 2025	Natural Gas
Paso Robles - Municipal Airport	Onyx Asset Services Group	Paso Robles, CA	8 GWh	Dec 2023	Dec 2025	Solar
Sutter Home Winery TCC	REC SHW, LLC	Paso Robles, CA	2 GWh	Apr 2024	Dec 2025	Solar
Firestone Walker Brewery - Phase 1	SkyHigh 2 Solar	Paso Robles, CA	4 GWh	Oct 2020	Dec 2025	Solar
Meridian Vineyards	CVI CleanCapital Solar 1 LLC	Paso Robles, CA	1 GWh	Nov 2010	Dec 2024	Solar
Alamo	California Dept. of Water Resources	Pearblossom, CA	66 GWh	Jun 1986	Dec 2025	Water
Solar Star California, XLIV, LLC	MN8 Energy LLC	Pearblossom, CA	23 GWh	Nov 2016	Dec 2025	Solar
EMWD - Perris Valley RWRF	SkyHigh 2 Solar	Perris, CA	8 GWh	Jun 2021	Dec 2025	Solar
Lavio Solar	Lavio Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2025	Solar
Stage Gulch Solar	Stage Gulch Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2025	Solar
Bodega Avenue Solar LLC	Bodega Avenue Solar LLC	Petaluma, CA	4 GWh	Dec 2020	Dec 2025	Solar
Santa Rosa Junior College Petaluma Solar	Sonoma County Junior College District	Petaluma, CA	2 GWh	Jun 2018	Dec 2025	Solar
Sonoma Central Landfill Phase I	County of Sonoma Dept of Trnsp	Petaluma, CA	583 MWh	Jun 1993	Dec 2025	Landfill Gas
Sonoma Central Landfill Phase II	County of Sonoma Dept of Trnsp	Petaluma, CA	2 GWh	May 1996	Dec 2025	Landfill Gas
SCE-Snowline-White Road (North)	SunEdison LLC	Phelan, CA	3 GWh	Oct 2014	Dec 2025	Solar
SCE-Snowline-Duncan Road (South)	SunEdison LLC	Phelan, CA	2 GWh	Sep 2014	Dec 2025	Solar
SCE-Snowline-White Rd (Central)	SunEdison LLC	Phelan, CA	3 GWh	Oct 2014	Dec 2025	Solar
SCE-Snowline-White Road (South)	SunEdison LLC	Phelan, CA	3 GWh	Oct 2014	Dec 2025	Solar
SCE-Snowline-Duncan Road (North)	SunEdison LLC	Phelan, CA	3 GWh	Sep 2014	Dec 2025	Solar
Pine Flat	Kings River Conservation Dist	Piedra, CA	353 GWh	Dec 1983	May 2026	Water
West Point PH	Pacific Gas & Electric Co.	Pioneer, CA	18 GWh	Oct 1948	Dec 2025	Water
Tiger Creek	Pacific Gas & Electric Co.	Pioneer, CA	216 GWh	May 1931	Dec 2025	Water
Salt Springs	Pacific Gas & Electric Co.	Pioneer, CA	113 GWh	May 1931	Dec 2025	Water
Delta Energy Center	Delta Energy Center LLC	Pittsburg, CA	3 TWh	Apr 2002	May 2026	Natural Gas
Los Medanos Energy Center	Los Medanos Energy Center LLC	Pittsburg, CA	3 TWh	Jul 2001	May 2026	Natural Gas
Columbia Solar Energy, LLC	Columbia Solar Energy LLC	Pittsburg, CA	12 GWh	Sep 2015	Dec 2025	Solar
Case Vander Eyk, Jr Dairy Solar	Bravo REC Management LLC	Pixley, CA	2 GWh	Sep 2023	Dec 2025	Solar
El Dorado County	SkyHigh 2 Solar	Placerville, CA	3 GWh	Feb 2021	Dec 2025	Solar
Chili Bar	Sacramento Municipal Util Dist	Placerville, CA	25 GWh	Feb 1965	Dec 2025	Water
Life Technologies - Pleasanton	Bloom Energy	Pleasanton, CA	8 GWh	Feb 2013	Dec 2025	Natural Gas
Kaiser Owens Dr. Fuel Cell	2016 ESA Project Company, LLC	Pleasanton, CA	8 GWh	Aug 2017	Dec 2025	Natural Gas
Thermo Fisher Pleasanton	TotalEnergies Renewables USA LLC	Pleasanton, CA	1 GWh	Jun 2025	Dec 2025	Solar
El Dorado	El Dorado Irrigation District	Pollock Pines, CA	81 GWh	Dec 1923	Dec 2025	Water
Tulare Success Power Project	Lower Tule River Irrgtn Dist	Porterville, CA	1 GWh	Nov 1989	Aug 2025	Water
Porterville Solar	Altus Power America Management, LLC	Porterville, CA	6 GWh	Dec 2013	Dec 2025	Solar
Porterville 6 and 7	Arevon Energy, Inc.	Porterville, CA	4 GWh	Jun 2014	Dec 2025	Solar
South County Detention Center Solar	SoCore Energy LLC	Porterville, CA	2 GWh	Oct 2019	Dec 2025	Solar
Silver State Solar Power South	Silver State Solar Power South, LLC	Primm Valley, NV	633 GWh	Oct 2015	May 2026	Solar
Sierra Pacific Quincy Facility	Sierra Pacific Industries	Quincy, CA	202 GWh	Nov 1986	Dec 2025	Wood/Wood Waste Solids
Ramona 1	MN8 Energy LLC	Ramona, CA	3 GWh	Nov 2013	Dec 2025	Solar
Ramona 2	MN8 Energy LLC	Ramona, CA	9 GWh	Nov 2013	Dec 2025	Solar
Ramona Solar Energy	San Diego Gas & Electric Co	Ramona, CA	2 GWh	Mar 2017	Dec 2025	Solar
9150 Hermosa Solar GM	Valta Energy	Rancho Cucamonga, CA	3 GWh	Nov 2022	Dec 2024	Solar
Chaffey College Rancho Cucamonga Campus	Chaffey Community College District	Rancho Cucamonga, CA	7 GWh	Jan 2017	Dec 2025	Solar
SunE Rochester	SunE Solar XVI Lessor, LLC	Rancho Cucamonga, CA	946 MWh	Jul 2016	Dec 2025	Solar
Rancho Cucamonga Dist #1	Altus Power America Management, LLC	Rancho Cucamonga, CA	3 GWh	Mar 2015	Dec 2025	Solar
Etiwanda	Metropolitan Water District of S CA	Rancho Cucamonga, CA	1 GWh	Nov 1994	Jul 2025	Water
Grapeland Hybrid	Southern California Edison Co	Rancho Cucamonga, CA	2 GWh	Aug 2007	Dec 2025	Natural Gas
Foundation IE	Foundation HA Energy Generation, LLC	Rancho Cucamonga, CA	404 MWh	Nov 2011	Dec 2025	Wind
Red Bluff	California Power Holdings LLC	Red Bluff, CA	10 GWh	Jul 2001	Dec 2024	Natural Gas
Foundation Wal-Mart Red Bluff	Foundation CA Fund VI Manager LLC	Red Bluff, CA	1 GWh	Aug 2012	May 2026	Wind
Sierra Pacific Industries (2042-RD)	Sierra Pacific Industries	Red Bluff, CA	17 GWh	Apr 2020	Dec 2025	Solar
Chambers 4 - Redland LGB4	MN8 Energy LLC	Redlands, CA	4 GWh	Feb 2019	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