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
SunE- E Philadelphia Ontario	SunEdison LLC	Ontario, CA	2 GWh	Feb 2016	Dec 2025	Solar
Munro Valley Solar	Ecos Energy LLC	Olancha, CA	9 GWh	Sep 2016	Dec 2025	Solar
Ocotillo Express LLC	Pattern Operators LP	Ocotillo, CA	372 GWh	Nov 2012	May 2026	Wind
Genentech-Oceanside Hybrid	Tesla Inc.	Oceanside, CA	4 GWh	Mar 2016	Dec 2024	Solar
Gilead Oceanside Solar Project	Gilead Sciences Inc.	Oceanside, CA	952 MWh	Nov 2021	Dec 2025	Solar
GEN005 Antibody Fuel Cell	2016 ESA Project Company, LLC	Oceanside, CA	19 GWh	Mar 2019	Dec 2025	Natural Gas
Oakley Solar Project	Oakley Solar Project LLC	Oakley, CA	2 GWh	May 2013	Dec 2025	Solar
CSD 2- Freedom High	CleanCapital Holdings	Oakley, CA	1 GWh	Jul 2013	Dec 2025	Solar
California PV Energy at ISD WWTP	California PV Energy LLC	Oakley, CA	2 GWh	Jul 2014	Dec 2025	Solar
Dynegy Oakland Power Plant	Dynegy Oakland, LLC	Oakland, CA	2 GWh	Oct 1978	May 2026	Jet Fuel
Power Generation Station (PGS) 2	East Bay Municipal Util Dist - (CA)	Oakland, CA	20 GWh	Nov 2011	Dec 2025	Other Biomass Gas
WWTP Power Generation Station	East Bay Municipal Util Dist - (CA)	Oakland, CA	31 GWh	Jul 1985	May 2026	Other Biomass Gas : 98.9% Distillate Fuel Oil : 1.1%
Robert O Schulz Solar Farm	South San Joaquin Irr District	Oakdale, CA	4 GWh	Apr 2008	Dec 2025	Solar
Frankenheimer Power Plant	Turlock Irrigation District	Oakdale, CA	11 GWh	Feb 1983	Dec 2025	Water
Waste Mangement Redwood LFGTE	WM Renewable Energy LLC	Novato, CA	22 GWh	Apr 2017	Dec 2025	Landfill Gas
Cottonwood Solar, LLC Cottonwood Carport	Onward Energy	Novato, CA	1 GWh	Apr 2016	Dec 2025	Solar
Silveira Ranch Road Solar	Silveira Ranch Road Solar	Novato, CA	5 GWh	Feb 2021	Dec 2025	Solar
Center Hybrid	Southern California Edison Co	Norwalk, CA	2 GWh	Aug 2007	Dec 2025	Natural Gas
Whitewater Hill Wind Partners	Shell Wind Energy Inc.	North Palm Springs, CA	127 GWh	Sep 2002	Dec 2025	Wind
Garnet Wind Energy Center	Terra-Gen Operating Co-Wind	North Palm Springs, CA	17 GWh	May 2009	Dec 2025	Wind
San Gorgonio Windplant WPP1993	FPL Energy Operating Services, Inc.	North Palm Springs, CA	192 GWh	Nov 2011	Dec 2025	Wind
Phoenix Wind Power LLC	Avangrid Power LLC	North Palm Springs, CA	5 GWh	May 1999	Dec 2025	Wind
Mountain View IV	AES Distributed Energy	North Palm Springs, CA	173 GWh	Jan 2012	Dec 2025	Wind
Salka Cabazon Wind	Salka Cabazon Wind LLC	North Palm Springs, CA	13 GWh	Dec 1998	Dec 2025	Wind
Mesa Wind Power LLC	Mesa Wind Power LLC	North Palm Springs, CA	114 GWh	Oct 1984	May 2026	Wind
Indigo Energy Facility	Diamond Generating Corporation	North Palm Springs, CA	6 GWh	Jun 2001	Dec 2025	Natural Gas
Dillon Wind LLC	Avangrid Power LLC	North Palm Springs, CA	138 GWh	Mar 2008	Dec 2025	Wind
Mountain View I & II	AES Distributed Energy	North Palm Springs, CA	250 GWh	May 2001	May 2026	Wind
San Gorgonio Westwinds II LLC	Terra-Gen Operating Co-Wind	North Palm Springs, CA	123 GWh	May 1999	Dec 2025	Wind
Mountain View III	Avangrid Power LLC	North Palm Springs, CA	81 GWh	Nov 2003	Dec 2025	Wind
Karen Avenue Wind Farm	San Gorgonio Farms Inc	North Palm Springs, CA	26 GWh	Dec 1984	Dec 2025	Wind
Mammoth Pool	Southern California Edison Co	North Fork, CA	569 GWh	Feb 1960	May 2026	Water
A G Wishon	Pacific Gas & Electric Co.	North Fork, CA	24 GWh	Aug 1910	Oct 2025	Water
Big Creek 4	Southern California Edison Co	North Fork, CA	392 GWh	May 1951	May 2026	Water
Donnells	Oakdale&South San Joaquin Irrigation D.	None, CA	233 GWh	May 1957	Dec 2025	Water
Beardsley	Oakdale&South San Joaquin Irrigation D.	None, CA	56 GWh	Apr 1957	Dec 2025	Water
Stateline Solar	Southern Power Co	Nipton, CA	640 GWh	Nov 2015	Dec 2025	Solar
Ivanpah 2	NRG Energy Services	Nipton, CA	236 GWh	Nov 2013	May 2026	Solar : 96.8% Natural Gas : 3.2%
Ivanpah 3	NRG Energy Services	Nipton, CA	211 GWh	Nov 2013	May 2026	Solar : 96.5% Natural Gas : 3.5%
Ivanpah 1	NRG Energy Services	Nipton, CA	197 GWh	Nov 2013	May 2026	Solar : 96.2% Natural Gas : 3.8%
Hoag Hospital Cogen Plant	Hoag Memorial Presbyterian Hospital	Newport Beach, CA	28 GWh	Jun 2006	May 2026	Natural Gas
Central 40	Central 40, LLC	Newman, CA	76 GWh	Jan 2021	May 2026	Solar
Frontier Solar LLC	Boralex US Operations LLC	Newman, CA	48 GWh	May 2016	Dec 2025	Solar
SEPV Cuyama Hybrid	SEPV Cuyama, LLC	New Cuyama, CA	3 GWh	Nov 2023	Dec 2025	Solar
Deer Creek PH	Nevada Irrigation District	Nevada City, CA	15 GWh	Apr 1908	Dec 2025	Water
Bowman	Nevada Irrigation District	Nevada City, CA	14 GWh	Aug 1986	Dec 2025	Water
Scott Flat	Nevada Irrigation District	Nevada City, CA	4 GWh	Jan 1985	Oct 2025	Water
Soscol Ferry Solar	Soscol Ferry Solar	Napa, CA	4 GWh	Nov 2020	Dec 2025	Solar
Kaiser Napa Valley Corporate Dr Fuel Cel	2016 ESA Project Company, LLC	Napa, CA	39 GWh	May 2017	Dec 2025	Natural Gas
Muck Valley Hydroelectric	Malacha Hydro Limited Partnership	NA, CA	90 GWh	Nov 1988	Dec 2025	Water
Grizzly	City of Santa Clara - (CA)	N/A, CA	43 GWh	Oct 1993	Dec 2025	Water
RCWD PV Project	MN8 Energy LLC	Murrieta, CA	8 GWh	May 2016	Dec 2025	Solar
Murphys	Utica Water & Power Authority	Murphys, CA	15 GWh	Feb 1954	Dec 2025	Water
Collierville Powerhouse	Northern California Power Agny	Murphys, CA	396 GWh	Oct 1989	May 2026	Water
Spicer Meadow Project	Northern California Power Agny	Murphys, CA	14 GWh	Oct 1989	Dec 2025	Water
Dynegy Moss Landing Power Plant Hybrid	Dynegy -Moss Landing LLC	Moss Landing, CA	2 TWh	Nov 1967	May 2026	Natural Gas
SunEdison Walgreens Moreno Valley	SunE WG113 Moreno Valley LLC	Moreno Valley, CA	599 MWh	Aug 2007	Dec 2025	Solar
EMWD - Moreno Valley RWRF	SkyHigh 2 Solar	Moreno Valley, CA	5 GWh	Jun 2021	Dec 2025	Solar
CA - Ventura Co CCD - Moorpark College	Forefront Power, LLC	Moorpark, CA	5 GWh	Jul 2023	Dec 2024	Solar
Roaring Creek Water Power	Shasta Hydroelectric Inc	Montgomery Creek, CA	6 GWh	Nov 1986	Dec 2025	Water
Hatchet Creek Project	Mega Renewables	Montgomery Creek, CA	22 GWh	Nov 1986	Dec 2025	Water
Montgomery Creek Hydro	Central Rivers Power US, LLC	Montgomery Creek, CA	9 GWh	Dec 1986	Dec 2025	Water
Pit 6	Pacific Gas & Electric Co.	Montgomery Creek, CA	262 GWh	Jul 1965	Dec 2025	Water
Pit 7	Pacific Gas & Electric Co.	Montgomery Creek, CA	376 GWh	Aug 1965	May 2026	Water
GreenStruxure BBU004, LLC	ClearGen LLC	Montebello, CA	2 GWh	Nov 2023	Dec 2025	Solar
Edwards Sanborn E3	Terra-Gen Operating Co-Hybrid	Mojave, CA	58 GWh	Nov 2021	May 2026	Solar
Voyager Wind II	Terra-Gen Operating Co-Wind	Mojave, CA	431 GWh	Nov 2018	May 2026	Wind
Voyager Wind III	Terra-Gen Operating Co-Wind	Mojave, CA	119 GWh	Nov 2018	May 2026	Wind
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	79 GWh	Nov 2018	Dec 2025	Wind
Windhub Solar A LLC	EDP Renewables North America LLC	Mojave, CA	48 GWh	Nov 2019	Dec 2025	Solar
Edwards Sanborn S1	Terra-Gen Operating Co-Hybrid	Mojave, CA	98 GWh	Feb 2022	May 2026	Solar
Edwards Sanborn S3	Terra-Gen Operating Co-Hybrid	Mojave, CA	81 GWh	Feb 2022	May 2026	Solar
Edwards Sanborn 1C	Terra-Gen Operating Co-Hybrid	Mojave, CA	206 GWh	Oct 2025	May 2026	Solar
Edwards Sanborn S4	Terra-Gen Operating Co-Hybrid	Mojave, CA	93 GWh	Oct 2022	May 2026	Solar
Edwards Sanborn E5	Terra-Gen Operating Co-Hybrid	Mojave, CA	153 GWh	Nov 2022	May 2026	Solar
Edwards Sanborn E4	Terra-Gen Operating Co-Hybrid	Mojave, CA	330 GWh	Nov 2022	May 2026	Solar
Oasis Alta	Terra-Gen Operating Co-Wind	Mojave, CA	49 GWh	Mar 2021	Dec 2025	Wind
Voyager Wind I	Terra-Gen Operating Co-Wind	Mojave, CA	343 GWh	Nov 2019	May 2026	Wind
Edwards Sanborn E1B	Terra-Gen Operating Co-Hybrid	Mojave, CA	354 GWh	Oct 2022	May 2026	Solar
SEPV Mojave West	AES Distributed Energy	Mojave, CA	53 GWh	May 2016	Dec 2025	Solar
Edwards Sanborn E1A	Terra-Gen Operating Co-Hybrid	Mojave, CA	318 GWh	Jul 2022	May 2026	Solar
Bellefield Solar and Energy Storage Farm	50LW 8me LLC	Mojave, CA	382 GWh	Nov 2025	May 2026	Solar
Edwards Sanborn E2	Terra-Gen Operating Co-Hybrid	Mojave, CA	292 GWh	Nov 2021	May 2026	Solar
Oasis Wind	Terra-Gen Operating Co-Wind	Mojave, CA	221 GWh	Nov 2004	Dec 2025	Wind
Ridgetop Energy LLC	Terra-Gen Operating Co-Wind	Mojave, CA	24 GWh	Dec 1983	Dec 2025	Wind
Rising Tree Wind Farm	Rising Tree Wind Farm LLC	Mojave, CA	250 GWh	Dec 2014	Dec 2025	Wind
RE Columbia 3 LLC	MN8 Energy LLC	Mojave, CA	23 GWh	Dec 2013	Dec 2025	Solar
Cameron Ridge LLC	Terra-Gen Operating Co-Wind	Mojave, CA	148 GWh	Nov 1984	Dec 2025	Wind
RE Camelot LLC	Onward Energy	Mojave, CA	121 GWh	Nov 2014	Dec 2025	Solar
RE Rio Grande Solar LLC	MN8 Energy LLC	Mojave, CA	10 GWh	Nov 2013	Dec 2025	Solar
Oak Creek Energy Systems I	Terra-Gen Operating Co-Wind	Mojave, CA	57 GWh	May 1982	Dec 2025	Wind
RE Columbia Two, LLC	Onward Energy	Mojave, CA	41 GWh	Nov 2014	Dec 2025	Solar
Mojave 3/4/5	Terra-Gen Operating Co-Wind	Mojave, CA	125 GWh	Nov 1990	Dec 2025	Wind
Mustang Hills LLC	Mustang Hills, LLC (Longroad)	Mojave, CA	267 GWh	Apr 2012	Dec 2025	Wind
Alta Wind VIII	Nextera Energy Resources	Mojave, CA	219 GWh	Dec 2011	Dec 2025	Wind
Alta Wind X	Alta Wind X, LLC	Mojave, CA	361 GWh	Dec 2013	Dec 2025	Wind
Alta Wind Energy Center V	Alta Wind V, LLC	Mojave, CA	254 GWh	Mar 2011	Dec 2025	Wind
Alta Wind XI	Alta Wind XI, LLC	Mojave, CA	251 GWh	Dec 2013	Dec 2025	Wind
Alta Wind Energy Center IV	Alta Wind IV, LLC	Mojave, CA	168 GWh	Mar 2011	Dec 2025	Wind
Alta Wind Energy Center III	Alta Wind III, LLC	Mojave, CA	318 GWh	Jan 2011	Dec 2025	Wind

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