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	Mar 2026
Annual Generation	179.9 TWh
Power Plants	2,075
Utilities	965
Ranked #7 out of 65 in terms of net annual generation
Ranked #8 out of 54 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 40.1% Solar \| 27.8% Water \| 12.2% Wind \| 10.2% Nuclear \| 9.7%

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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
Mojave 3/4/5	Terra-Gen Operating Co-Wind	Mojave, CA	133 GWh	Nov 1990	Dec 2024	Wind
TPC Windfarms LLC	Terra-Gen Operating Co-Wind	Mojave, CA	46 GWh	Nov 1986	Dec 2024	Wind
Ridgetop	Terra-Gen Operating Co-Wind	Mojave, CA	146 GWh	Mar 1994	Dec 2024	Wind
Oak Creek Energy Systems I	Terra-Gen Operating Co-Wind	Mojave, CA	54 GWh	May 1982	Dec 2024	Wind
Edwards Sanborn S1	Terra-Gen Operating Co-Hybrid	Mojave, CA	101 GWh	Feb 2022	Dec 2025	Solar
Edwards Sanborn E1B	Terra-Gen Operating Co-Hybrid	Mojave, CA	355 GWh	Oct 2022	Dec 2025	Solar
Oasis Alta	Terra-Gen Operating Co-Wind	Mojave, CA	57 GWh	Mar 2021	Dec 2024	Wind
Windhub Solar A LLC	EDP Renewables North America LLC	Mojave, CA	47 GWh	Nov 2019	Dec 2024	Solar
Edwards Sanborn E4	Terra-Gen Operating Co-Hybrid	Mojave, CA	321 GWh	Nov 2022	Dec 2025	Solar
Voyager Wind I	Terra-Gen Operating Co-Wind	Mojave, CA	389 GWh	Nov 2019	Dec 2025	Wind
Edwards Sanborn 1C	Terra-Gen Operating Co-Hybrid	Mojave, CA	38 GWh	-	Dec 2025	Solar
Edwards Sanborn E5	Terra-Gen Operating Co-Hybrid	Mojave, CA	155 GWh	Nov 2022	Dec 2025	Solar
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	81 GWh	Nov 2018	Dec 2024	Wind
Voyager Wind II	Terra-Gen Operating Co-Wind	Mojave, CA	477 GWh	Nov 2018	Dec 2025	Wind
Edwards Sanborn S3	Terra-Gen Operating Co-Hybrid	Mojave, CA	84 GWh	Feb 2022	Dec 2025	Solar
Edwards Sanborn E2	Terra-Gen Operating Co-Hybrid	Mojave, CA	301 GWh	Nov 2021	Dec 2025	Solar
Edwards Sanborn E1A	Terra-Gen Operating Co-Hybrid	Mojave, CA	333 GWh	Jul 2022	Dec 2025	Solar
Edwards Sanborn E3	Terra-Gen Operating Co-Hybrid	Mojave, CA	56 GWh	Nov 2021	Dec 2025	Solar
SEPV Mojave West	AES Distributed Energy	Mojave, CA	54 GWh	May 2016	Dec 2024	Solar
Voyager Wind III	Terra-Gen Operating Co-Wind	Mojave, CA	133 GWh	Nov 2018	Dec 2025	Wind
Edwards Sanborn S4	Terra-Gen Operating Co-Hybrid	Mojave, CA	89 GWh	Oct 2022	Dec 2025	Solar
Pit 7	Pacific Gas & Electric Co.	Montgomery Creek, CA	439 GWh	Aug 1965	Dec 2025	Water
Hatchet Creek Project	Mega Renewables	Montgomery Creek, CA	23 GWh	Nov 1986	Dec 2024	Water
Roaring Creek Water Power	Shasta Hydroelectric Inc	Montgomery Creek, CA	7 GWh	Nov 1986	Dec 2024	Water
Montgomery Creek Hydro	Central Rivers Power US, LLC	Montgomery Creek, CA	10 GWh	Dec 1986	Dec 2024	Water
Pit 6	Pacific Gas & Electric Co.	Montgomery Creek, CA	242 GWh	Jul 1965	Dec 2024	Water
CA - Ventura Co CCD - Moorpark College	Forefront Power, LLC	Moorpark, CA	5 GWh	Jul 2023	Dec 2024	Solar
EMWD - Moreno Valley RWRF	SkyHigh 2 Solar	Moreno Valley, CA	6 GWh	Jun 2021	Dec 2024	Solar
SunEdison Walgreens Moreno Valley	SunE WG113 Moreno Valley LLC	Moreno Valley, CA	900 MWh	Aug 2007	Dec 2024	Solar
Dynegy Moss Landing Power Plant Hybrid	Dynegy -Moss Landing LLC	Moss Landing, CA	2 TWh	Nov 1967	Dec 2025	Natural Gas
Spicer Meadow Project	Northern California Power Agny	Murphys, CA	22 GWh	Oct 1989	Dec 2024	Water
Collierville Powerhouse	Northern California Power Agny	Murphys, CA	342 GWh	Oct 1989	Dec 2025	Water
Murphys	Utica Water & Power Authority	Murphys, CA	15 GWh	Feb 1954	Dec 2024	Water
RCWD PV Project	MN8 Energy LLC	Murrieta, CA	8 GWh	May 2016	Dec 2024	Solar
Grizzly	City of Santa Clara - (CA)	N/A, CA	30 GWh	Oct 1993	Dec 2024	Water
Muck Valley Hydroelectric	Brookfield Renewable Trading and Marketing LP	NA, CA	82 GWh	Nov 1988	Dec 2024	Water
Kaiser Napa Valley Corporate Dr Fuel Cel	2016 ESA Project Company, LLC	Napa, CA	38 GWh	May 2017	Dec 2024	Natural Gas
Soscol Ferry Solar	Soscol Ferry Solar	Napa, CA	5 GWh	Nov 2020	Dec 2024	Solar
Bowman	Nevada Irrigation District	Nevada City, CA	11 GWh	Aug 1986	Dec 2024	Water
Deer Creek PH	Nevada Irrigation District	Nevada City, CA	12 GWh	Apr 1908	Dec 2024	Water
Scott Flat	Nevada Irrigation District	Nevada City, CA	4 GWh	Jan 1985	Oct 2024	Water
SEPV Cuyama Hybrid	SEPV Cuyama, LLC	New Cuyama, CA	3 GWh	Nov 2023	Dec 2024	Solar
Newberry Solar 1 LLC	Newberry Solar 1 LLC	Newberry Springs, CA	1 GWh	Nov 2013	Dec 2023	Solar
Central 40	Central 40, LLC	Newman, CA	69 GWh	Jan 2021	Dec 2025	Solar
Frontier Solar LLC	Boralex US Operations LLC	Newman, CA	39 GWh	May 2016	Dec 2024	Solar
Hoag Hospital Cogen Plant	Hoag Memorial Presbyterian Hospital	Newport Beach, CA	27 GWh	Jun 2006	Dec 2025	Natural Gas
Ivanpah 3	NRG Energy Services	Nipton, CA	237 GWh	Nov 2013	Dec 2025	Solar : 96.4% Natural Gas : 3.6%
Ivanpah 2	NRG Energy Services	Nipton, CA	244 GWh	Nov 2013	Dec 2025	Solar : 95.6% Natural Gas : 4.4%
Ivanpah 1	NRG Energy Services	Nipton, CA	208 GWh	Nov 2013	Dec 2025	Solar : 96.3% Natural Gas : 3.7%
Stateline Solar	Southern Power Co	Nipton, CA	620 GWh	Nov 2015	Dec 2024	Solar
Beardsley	Oakdale&South San Joaquin Irrigation D.	None, CA	56 GWh	Apr 1957	Dec 2024	Water
Donnells	Oakdale&South San Joaquin Irrigation D.	None, CA	219 GWh	May 1957	Dec 2024	Water
Mammoth Pool	Southern California Edison Co	North Fork, CA	466 GWh	Feb 1960	Dec 2025	Water
A G Wishon	Pacific Gas & Electric Co.	North Fork, CA	22 GWh	Aug 1910	Dec 2024	Water
Big Creek 4	Southern California Edison Co	North Fork, CA	365 GWh	May 1951	Dec 2025	Water
Phoenix Wind Power LLC	Avangrid Power LLC	North Palm Springs, CA	3 GWh	May 1999	Dec 2024	Wind
San Gorgonio Windplant WPP1993	FPL Energy Operating Services, Inc.	North Palm Springs, CA	202 GWh	Nov 2011	Dec 2024	Wind
Indigo Energy Facility	Diamond Generating Corporation	North Palm Springs, CA	25 GWh	Jun 2001	Dec 2024	Natural Gas
Mesa Wind Power LLC	Brookfield Renewable Trading and Marketing LP	North Palm Springs, CA	123 GWh	Oct 1984	Dec 2025	Wind
Mountain View III	Avangrid Power LLC	North Palm Springs, CA	76 GWh	Nov 2003	Dec 2024	Wind
Karen Avenue Wind Farm	San Gorgonio Farms Inc	North Palm Springs, CA	23 GWh	Dec 1984	Dec 2024	Wind
Mountain View I & II	AES Distributed Energy	North Palm Springs, CA	275 GWh	May 2001	Dec 2025	Wind
Whitewater Hill Wind Partners	Shell Wind Energy Inc.	North Palm Springs, CA	128 GWh	Sep 2002	Dec 2024	Wind
San Gorgonio Westwinds II LLC	Terra-Gen Operating Co-Wind	North Palm Springs, CA	124 GWh	May 1999	Dec 2024	Wind
Garnet Wind Energy Center	Terra-Gen Operating Co-Wind	North Palm Springs, CA	12 GWh	May 2009	Dec 2024	Wind
Salka Cabazon Wind	Salka Cabazon Wind LLC	North Palm Springs, CA	8 GWh	Dec 1998	Dec 2024	Wind
Dillon Wind LLC	Avangrid Power LLC	North Palm Springs, CA	142 GWh	Mar 2008	Dec 2024	Wind
Mountain View IV	AES Distributed Energy	North Palm Springs, CA	187 GWh	Jan 2012	Dec 2024	Wind
Center Hybrid	Southern California Edison Co	Norwalk, CA	7 GWh	Aug 2007	Dec 2024	Natural Gas
Waste Mangement Redwood LFGTE	WM Renewable Energy LLC	Novato, CA	13 GWh	Apr 2017	Dec 2024	Landfill Gas
Cottonwood Solar, LLC Cottonwood Carport	Onward Energy	Novato, CA	2 GWh	Apr 2016	Dec 2024	Solar
Silveira Ranch Road Solar	Silveira Ranch Road Solar	Novato, CA	4 GWh	Feb 2021	Dec 2024	Solar
Robert O Schulz Solar Farm	South San Joaquin Irr District	Oakdale, CA	2 GWh	Apr 2008	Dec 2024	Solar
Frankenheimer Power Plant	Turlock Irrigation District	Oakdale, CA	13 GWh	Feb 1983	Oct 2024	Water
Dynegy Oakland Power Plant	Dynegy Oakland, LLC	Oakland, CA	2 GWh	Oct 1978	Nov 2025	Jet Fuel
Power Generation Station (PGS) 2	East Bay Municipal Util Dist	Oakland, CA	16 GWh	Nov 2011	Dec 2024	Other Biomass Gas
WWTP Power Generation Station	East Bay Municipal Util Dist	Oakland, CA	30 GWh	Jul 1985	Dec 2025	Other Biomass Gas : 99.0% Distillate Fuel Oil : 1.0%
Oakley Solar Project	Oakley Solar Project LLC	Oakley, CA	2 GWh	May 2013	Dec 2024	Solar
CSD 2- Freedom High	CleanCapital Holdings	Oakley, CA	1 GWh	Jul 2013	Dec 2024	Solar
California PV Energy at ISD WWTP	California PV Energy LLC	Oakley, CA	2 GWh	Jul 2014	Dec 2024	Solar
Genentech-Oceanside Hybrid	Tesla Inc.	Oceanside, CA	4 GWh	Mar 2016	Dec 2024	Solar
Gilead Oceanside Solar Project	Gilead Sciences Inc.	Oceanside, CA	2 GWh	Nov 2021	Dec 2024	Solar
GEN005 Antibody Fuel Cell	2016 ESA Project Company, LLC	Oceanside, CA	21 GWh	Mar 2019	Dec 2024	Natural Gas
Ocotillo Express LLC	Pattern Operators LP	Ocotillo, CA	435 GWh	Nov 2012	Dec 2025	Wind
Munro Valley Solar	Ecos Energy LLC	Olancha, CA	11 GWh	Sep 2016	Dec 2024	Solar
SunE- E Philadelphia Ontario	SunEdison LLC	Ontario, CA	2 GWh	Feb 2016	Dec 2024	Solar
Terra Francesco	Altus Power America Management, LLC	Ontario, CA	2 GWh	Feb 2015	Dec 2024	Solar
PVN Milliken, LLC	PVN Milliken, LLC	Ontario, CA	5 GWh	May 2017	Dec 2024	Solar
Kaiser Ontario	Bloom Energy 2009 PPA	Ontario, CA	3 GWh	Sep 2012	Dec 2024	Natural Gas
Oltmans SCE at Jurupa	California PV Energy LLC	Ontario, CA	2 GWh	Nov 2013	Dec 2024	Solar
Oltmans SCE at Champagne	California PV Energy LLC	Ontario, CA	2 GWh	Nov 2013	Dec 2024	Solar
Mira Loma Peaker	Southern California Edison Co	Ontario, CA	11 GWh	Aug 2007	Dec 2024	Natural Gas
New-Indy Ontario Mill	New-Indy Ontario LLC	Ontario, CA	245 GWh	May 1985	Dec 2025	Natural Gas
Black Butte	City of Santa Clara - (CA)	Orland, CA	15 GWh	Aug 1988	Dec 2024	Water
Alamo Solar	Onward Energy	Oro Grande, CA	48 GWh	Apr 2015	Dec 2024	Solar
Oro Loma	Consolidated Edison Development Inc.	Oro Loma, CA	25 GWh	Dec 2016	Dec 2024	Solar
Edward C Hyatt	California Dept. of Water Resources	Oroville, CA	2 TWh	Feb 1968	Dec 2025	Water
Kelly Ridge	South Feather Water and Power Agency	Oroville, CA	67 GWh	Aug 1963	Dec 2024	Water
Thermalito Diverson Dam	California Dept. of Water Resources	Oroville, CA	19 GWh	Jun 1987	Dec 2024	Water
Oroville Cogeneration LP	Apex Power Generation Corp.	Oroville, CA	672 MWh	Dec 1989	Dec 2024	Natural Gas

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#26	Arizona Public Service Company	24.1 TWh	92
#55	Arlington Valley, LLC	3.0 TWh	1
#37	Balancing Authority of Northern California	14.4 TWh	87
#48	Imperial Irrigation District	6.4 TWh	66
#31	Los Angeles Department of Water and Power	18.3 TWh	124
#22	Nevada Power Company	37.3 TWh	139
#64	New Harquahala Generating Company, LLC	107.5 GWh	1
#19	Salt River Project Agricultural Improvement and Power District	60.3 TWh	48
#57	Turlock Irrigation District	2.0 TWh	11
#39	Western Area Power Administration - Desert Southwest Region	10.0 TWh	33

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	484.9 TWh	1,313
#5	Southwest Power Pool	300.1 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	179.9 TWh	2,075
#9	Tennessee Valley Authority	162.4 TWh	204
#10	Florida Power & Light Co.	150.5 TWh	187
#12	New York Independent System Operator	134.0 TWh	1,211
#13	Duke Energy Carolinas	112.4 TWh	565
#15	ISO New England	110.5 TWh	1,577
#16	Bonneville Power Administration	85.9 TWh	163