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
RE Kent South, LLC	Onward Energy	Lemoore, CA	36 GWh	Nov 2014	Dec 2025	Solar
RE Mustang LLC	MN8 Energy LLC	Lemoore, CA	221 GWh	Jul 2016	Dec 2025	Solar
RE Old River One, LLC	Onward Energy	Bakersfield, CA	38 GWh	Nov 2014	Dec 2025	Solar
RE Rio Grande Solar LLC	MN8 Energy LLC	Mojave, CA	10 GWh	Nov 2013	Dec 2025	Solar
RE Rosamond One LLC	MN8 Energy LLC	Rosamond, CA	51 GWh	Dec 2013	Dec 2025	Solar
RE Rosamond Two LLC	MN8 Energy LLC	Rosamond, CA	49 GWh	Dec 2013	Dec 2025	Solar
RE Tranquillity	Southern Power Co	Cantua Creek, CA	485 GWh	Jun 2016	Dec 2025	Solar
RE-VFO LLC	RE-VFO LLC	Visalia, CA	2 GWh	Apr 2009	Dec 2025	Solar
RE Victor Phelan Solar One LLC	MN8 Energy LLC	Adelanto, CA	45 GWh	Nov 2013	Dec 2025	Solar
Red Bluff	California Power Holdings LLC	Red Bluff, CA	10 GWh	Jul 2001	Dec 2024	Natural Gas
Redcrest Solar Farm	AES Distributed Energy	Edison, CA	34 GWh	Sep 2015	Dec 2025	Solar
Redlands Community Hospital	Bloom Energy	Redlands, CA	9 GWh	May 2021	Dec 2025	Natural Gas
Redwood 4 Solar Farm	54 KR 8me LLC	Edison, CA	19 GWh	Nov 2017	Dec 2025	Solar
Reedley Community College Solar	Forefront Power, LLC	Reedley, CA	4 GWh	Nov 2018	Dec 2024	Solar
Regional Wastewater Control Facility	City of Stockton MUD - (CA)	Stockton, CA	4 GWh	Oct 2000	Dec 2025	Other Biomass Gas : 98.0% Natural Gas : 1.9%
Regulus Solar Project	Regulus Solar, LLC	Bakersfield, CA	150 GWh	Oct 2014	Dec 2025	Solar
Resurgence Solar	Resurgence Solar	Boron, CA	246 GWh	Jul 2023	May 2026	Solar
Resurgence Solar II	Resurgence Solar II	Boron, CA	133 GWh	Jul 2023	May 2026	Solar
Rexford Solar Farm	AES Clean Energy	Ducor, CA	708 GWh	Jan 2025	May 2026	Solar
Richmond Cogen	Chevron Products Company-Richmond	Richmond, CA	956 GWh	Jul 1992	May 2026	Natural Gas : 97.6% Other Gas : 2.4%
Ridgetop	Terra-Gen Operating Co-Wind	Mojave, CA	118 GWh	Mar 1994	Dec 2025	Wind
Ridgetop Energy LLC	Terra-Gen Operating Co-Wind	Mojave, CA	24 GWh	Dec 1983	Dec 2025	Wind
Rio Bravo Hydro Project	Olcese Water District	Bakersfield, CA	27 GWh	Apr 1989	Nov 2025	Water
Rio Bravo Rocklin	Rio Bravo Rocklin	Lincoln, CA	147 GWh	May 1989	Dec 2025	Wood/Wood Waste Solids : 99.0% Natural Gas : 1.0%
Rio Bravo Solar 1 LLC	Duke Energy Renewables Services	McKittrick, CA	52 GWh	Nov 2016	Dec 2025	Solar
Rio Bravo Solar II LLC	Duke Energy Renewables Services	McKittrick, CA	52 GWh	Nov 2016	Dec 2025	Solar
Rio Vista Solar	Rio Vista Executive Boat & RV Storage, LLC	Rio Vista, CA	3 GWh	Mar 2025	Dec 2025	Solar
Rising Tree Wind Farm	Rising Tree Wind Farm LLC	Mojave, CA	250 GWh	Dec 2014	Dec 2025	Wind
Rising Tree Wind Farm II	Rising Tree Wind Farm II LLC	Mojave, CA	54 GWh	Dec 2014	Dec 2025	Wind
Rising Tree Wind Farm III	Rising Tree Wind Farm III LLC	Mojave, CA	260 GWh	May 2015	Dec 2025	Wind
River Ranch Dairy	Renewable Solar, Inc	Hanford, CA	995 MWh	May 2024	Dec 2025	Solar
Riverside Energy Resource Center	City of Riverside - (CA)	Riverside, CA	17 GWh	May 2006	Dec 2025	Natural Gas
Riverside RWQCP Fuel Cell	Riverside Fuel Cell, LLC	Riverside, CA	9 GWh	Jul 2016	Dec 2024	Other Biomass Gas : 83.8% Natural Gas : 16.2%
Riverview Energy Center	Gilroy Energy Center for Riverview	Antioch, CA	12 GWh	Apr 2003	Dec 2025	Natural Gas
Roaring Creek Water Power	Shasta Hydroelectric Inc	Montgomery Creek, CA	6 GWh	Nov 1986	Dec 2025	Water
Robert O Schulz Solar Farm	South San Joaquin Irr District	Oakdale, CA	4 GWh	Apr 2008	Dec 2025	Solar
Rock Creek	Pacific Gas & Electric Co.	Storrie, CA	472 GWh	Feb 1950	May 2026	Water
Rodeo Solar C2	AES Distributed Energy	Lancaster, CA	4 GWh	Apr 2014	Dec 2025	Solar
Rodeo Solar D2	AES Distributed Energy	Lancaster, CA	3 GWh	Apr 2014	Dec 2025	Solar
Rollins	Nevada Irrigation District	Colfax, CA	37 GWh	Jul 1980	Dec 2025	Water
Rosamond South 1	Golden Fields Solar IV, LLC	Rosamond, CA	324 GWh	Jul 2025	May 2026	Solar
RPUWD Scheuer Well Solar Project	MN8 Energy LLC	San Bernardino, CA	1 GWh	May 2018	Dec 2025	Solar
Rudy Solar, LLC	CD US Solar PO 3, LLC	Silver Lake, CA	3 GWh	Nov 2014	Dec 2025	Solar
Rush Creek	Southern California Edison Co	June lake, CA	30 GWh	Sep 1916	Dec 2025	Water
Russell City Energy Center	Russell City Energy Company LLC	Hayward, CA	2 TWh	Jul 2013	May 2026	Natural Gas
Rutan	CD US Solar MT 2 LLC	Palmdale, CA	3 GWh	Dec 2013	Dec 2025	Solar
Sacramento Municipal Util Dist	South Sutter Water District	Sacramento, CA	14 GWh	Jan 1985	Dec 2025	Water
Saint Agnes Medical Center	Saint Agnes Medical Center	Fresno, CA	32 GWh	Apr 2001	May 2026	Natural Gas
Salinas River Cogeneration	Salinas River Cogeneration Co	San Ardo, CA	255 GWh	Oct 1991	May 2026	Natural Gas
Salka Cabazon Wind	Salka Cabazon Wind LLC	North Palm Springs, CA	13 GWh	Dec 1998	Dec 2025	Wind
Salt Springs	Pacific Gas & Electric Co.	Pioneer, CA	113 GWh	May 1931	Dec 2025	Water
San Antonio Regional Hospital	San Antonio Regional Hospital	Upland, CA	13 GWh	Dec 1984	Dec 2025	Natural Gas
San Antonio West Solar Rooftop	SS San Antonio West LLC	Chino, CA	2 GWh	Jul 2012	Dec 2025	Solar
San Diego Community College	Bloom Energy	San Diego, CA	7 GWh	Feb 2020	Dec 2025	Natural Gas
San Diego - EMDF at San Diego	California PV Energy 3, LLC	San Diego, CA	5 GWh	Mar 2021	Dec 2025	Solar
San Diego - NCRC at Vista	California PV Energy 3, LLC	Vista, CA	3 GWh	Feb 2021	Dec 2025	Solar
San Diego State University	San Diego State University	San Diego, CA	57 GWh	Aug 2002	May 2026	Natural Gas : 97.4% Solar : 2.6%
San Dimas	Metropolitan Water District of S CA	San Dimas, CA	10 GWh	May 1981	Sep 2025	Water
San Dimas Wash Generating Station	San Gabriel Valley Mun Wtr Dt	San Dimas, CA	1 GWh	Feb 1986	Sep 2025	Water
San Gabriel Hydro Project	Los Angeles County-San Gabriel	Azusa, CA	2 GWh	Nov 1987	Apr 2025	Water
San Gorgonio Farms Wind Farm	San Gorgonio Farms Inc	Whitewater, CA	52 GWh	Feb 1983	Dec 2025	Wind
San Gorgonio Westwinds II LLC	Terra-Gen Operating Co-Wind	North Palm Springs, CA	123 GWh	May 1999	Dec 2025	Wind
San Gorgonio Windplant WPP1993	FPL Energy Operating Services, Inc.	North Palm Springs, CA	192 GWh	Nov 2011	Dec 2025	Wind
San Joaquin Solar	GASNA 6P, LLC	San Joaquin, CA	22 GWh	Apr 2018	Dec 2025	Solar
San Jose Cogeneration	San Jose State University Fclts Dev &Ops	San Jose, CA	35 GWh	Nov 1984	May 2026	Natural Gas
San Manuel Central Plant Cogens	Yuhaaviatam of San Manuel Nation	Highland, CA	18 GWh	May 2021	Dec 2025	Natural Gas
San Pablo Raceway	AES Distributed Energy	Lancaster, CA	215 GWh	Jul 2019	May 2026	Solar
Sand Bar Power Plant	Tri-Dam Power Authority	Stanislaus Ntl. Fores, CA	83 GWh	Apr 1986	Dec 2025	Water
Sand Drag LLC	Avenal Solar Holdings LLC	Avenal, CA	32 GWh	Jul 2011	Dec 2025	Solar
Sandrini Solar 100	EDPR CA Solar Park II LLC	Mettler, CA	254 GWh	Nov 2024	May 2026	Solar
Sandrini Solar 200	EDPR CA Solar Park LLC	Mettler, CA	445 GWh	Nov 2024	May 2026	Solar
Santa Barbara ReSource Center	County of Santa Barbara - (CA)	Goleta, CA	9 GWh	May 2021	Dec 2025	Other Biomass Gas
Santa Cruz Energy	Santa Cruz Energy LLC	Santa Cruz, CA	9 GWh	Oct 2009	Dec 2025	Landfill Gas
Santa Fe Springs Rooftop Solar BLDG H	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Feb 2015	Dec 2025	Solar
Santa Fe Springs Rooftop Solar BLDG M	Golden Springs Development Company LLC	Santa Fe Springs, CA	3 GWh	Feb 2015	Dec 2025	Solar
Santa Rita Jail Fuel Cell	SRJFC, LLC	Dublin, CA	9 GWh	Nov 2016	Dec 2024	Natural Gas
Santa Rosa Junior College Petaluma Solar	Sonoma County Junior College District	Petaluma, CA	2 GWh	Jun 2018	Dec 2025	Solar
SB Water Reclamation Fuel Cell	San Bernardino Fuel Cell, LLC	San Bernardino, CA	9 GWh	May 2021	Dec 2024	Other Biomass Gas : 91.7% Natural Gas : 8.3%
SC 1 Data Center, Phase 2	Xeres Ventures LLC	Santa Clara, CA	392 MWh	Aug 2011	May 2026	Distillate Fuel Oil
Scarlet II Hybrid	EDPR Scarlet II LLC	Cantua Creek, CA	387 GWh	Nov 2024	May 2026	Solar
Scarlet Solar (CA)	EDP Renewables North America LLC	Fresno, CA	483 GWh	May 2024	May 2026	Solar
SCC - San Jose	Bloom Energy	San Jose, CA	8 GWh	Feb 2014	Dec 2025	Natural Gas
SCCCD - Clovis Community College	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2018	Dec 2024	Solar
SCCCD - Fresno Community College	Forefront Power, LLC	Fresno, CA	3 GWh	Sep 2018	Dec 2024	Solar
SCDA Solar 1	SCDA Solar 1, LLC	Sacramento, CA	14 GWh	Sep 2017	Dec 2025	Solar
SCE-Snowline-Duncan Road (North)	SunEdison LLC	Phelan, CA	3 GWh	Sep 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 (North)	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
Scott Flat	Nevada Irrigation District	Nevada City, CA	4 GWh	Jan 1985	Oct 2025	Water
SCU000 El Camino Real Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	12 GWh	Nov 2018	Dec 2025	Natural Gas
SCV Water - Gladbach Water Treatment Plant Phases I and II	SCV Water	Santa Clara, CA	858 MWh	Nov 2014	Oct 2025	Solar
SDCCD - Miramar	CleanCapital Holdings	San Diego, CA	1 GWh	Jan 2011	Dec 2025	Solar
SDCWA - Twin Oaks	CleanCapital Holdings	San Marcos, CA	2 GWh	Apr 2011	Dec 2025	Solar
SE Athos II, LLC	SE Athos II, LLC	Desert Center, CA	559 GWh	Nov 2021	May 2026	Solar
Sealed Air Madera Solar Project	Sealed Air Corporation	Madera, CA	7 GWh	Apr 2022	Dec 2025	Solar
SeaWorld Aquatica	Onyx Asset Services Group	Chula Vista, CA	2 GWh	Apr 2018	Dec 2024	Solar
Sentinel Energy Center, LLC	Sentinel Energy Center LLC	Desert Hot Springs, CA	124 GWh	Apr 2013	May 2026	Natural Gas
SEPV 1	CVI CleanCapital Solar 1 LLC	Palmdale, CA	3 GWh	Apr 2012	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