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	Nov 2024
Annual Generation	191.5 TWh
Power Plants	1,943
Utilities	893
Ranked #7 out of 65 in terms of net annual generation
Ranked #7 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 45.6% Solar \| 23.1% Water \| 12.1% Wind \| 10% Nuclear \| 9%

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

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Coalinga 25D Cogen	Chevron USA Inc	Coalinga, CA	67 GWh	Sep 1986	Dec 2023	Natural Gas
French Meadows	Placer County Water Agency	Foresthill, CA	67 GWh	Sep 1966	Dec 2023	Water
Central 40	Central 40, LLC	Newman, CA	69 GWh	Jan 2021	Aug 2024	Solar
Mountain View III	Avangrid Renewables LLC	North Palm Springs, CA	69 GWh	Nov 2003	Dec 2023	Wind
Parnassus Central Utility Plant	University of California-San Francisco	San Francisco, CA	69 GWh	Dec 1995	Aug 2024	Natural Gas
Mojave Siphon	California Dept. of Water Resources	Hesperia, CA	70 GWh	Jul 1996	Dec 2023	Water
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	70 GWh	Nov 2018	Dec 2023	Wind
Edwards Sanborn S4	Terra-Gen Operating Co-Hybrid	Mojave, CA	71 GWh	Oct 2022	Aug 2024	Solar
Alpaugh 50	Consolidated Edison Development Inc.	Alpaugh, CA	72 GWh	Nov 2012	Dec 2023	Solar
Berry NMW Cogens	Berry Petroleum Co	Bakersfield, CA	72 GWh	Oct 2017	Dec 2023	Natural Gas
Rollins	Nevada Irrigation District	Colfax, CA	73 GWh	Jul 1980	Dec 2023	Water
Narrows PH	Yuba County Water Agency	Grass Valley, CA	73 GWh	Nov 1942	Dec 2023	Water
Wadham Energy LP	Wadham Energy Ltd Partners	Williams, CA	74 GWh	Feb 1989	Dec 2023	Agricultural By-Products : 99.5% Natural Gas : 0.5%
Gilroy Power Plant	Calpine Gilroy Cogen LP	Gilroy, CA	75 GWh	Sep 1987	Nov 2023	Natural Gas
Cuyama Solar, LLC	Cuyama Solar, LLC	Cuyama, CA	75 GWh	Oct 2017	Aug 2024	Solar
Estrella Solar & Storage	AES Clean Energy	Lancaster, CA	75 GWh	Nov 2023	Aug 2024	Solar
Lost Hills/Blackwell	Southern Power Co	Lost Hills, CA	77 GWh	Mar 2015	Dec 2023	Solar
Aidlin Geothermal Power Plant	Geysers Power Co LLC	Middletown, CA	77 GWh	Apr 1989	Dec 2023	Geothermal
Edwards Sanborn S3	Terra-Gen Operating Co-Hybrid	Mojave, CA	79 GWh	Feb 2022	Aug 2024	Solar
Elk Hills Cogen	California Resources Elk Hills LLC	Tupman, CA	81 GWh	Oct 1994	Aug 2024	Natural Gas
SJ/SC WPCP	San Jose/Santa Clara Water P C	San Jose, CA	82 GWh	Jan 1953	Aug 2024	Other Biomass Gas : 50.4% Natural Gas : 49.5%
Canyon Power Plant	City of Anaheim - (CA)	Anaheim, CA	82 GWh	Jul 2011	Aug 2024	Natural Gas
West Point PH	Pacific Gas & Electric Co.	Pioneer, CA	82 GWh	Oct 1948	Dec 2023	Water
Beardsley	Oakdale&South San Joaquin Irrigation D.	None, CA	83 GWh	Apr 1957	Dec 2023	Water
Muck Valley Hydroelectric	Brookfield Renewable Trading and Marketing LP	NA, CA	83 GWh	Nov 1988	Dec 2023	Water
Little Bear Solar 1, LLC	Little Bear Solar 1, LLC (Longroad)	Mendota, CA	83 GWh	Nov 2020	Aug 2024	Solar
CP Kelco San Diego Plant	CP Kelco US Inc.	San Diego, CA	83 GWh	Sep 1983	Aug 2024	Natural Gas
Mojave 3/4/5	Terra-Gen Operating Co-Wind	Mojave, CA	83 GWh	Nov 1990	Dec 2023	Wind
Ameresco Ox Mountain	AMERESCO Ox Mountain Energy LLC	Half Moon Bay, CA	84 GWh	Nov 2008	Aug 2024	Landfill Gas
Bucks Creek	Pacific Gas & Electric Co.	Storrie, CA	85 GWh	Feb 1928	Sep 2023	Water
Ocotillo Wells	Conductive Power	Borrego Springs, CA	87 GWh	Aug 2023	Aug 2024	Solar
85 B	Wind Wall 1 LLC	Tehachapi, CA	87 GWh	Dec 1984	Dec 2023	Wind
Sierra Pacific Lincoln Facility	Sierra Pacific Industries	Lincoln, CA	88 GWh	Feb 2004	Dec 2023	Wood/Wood Waste Solids
Drum 1	Pacific Gas & Electric Co.	Alta, CA	88 GWh	Oct 1913	Dec 2023	Water
Covanta Stanislaus Energy	Covanta Stanislaus Inc	Crows Landing, CA	90 GWh	Aug 1988	Aug 2024	Non-biogenic Municipal Solid Waste : 51.5% Biogenic Municipal Solid Waste : 42.1% Distillate Fuel Oil : 6.4%
Southeast Resource Recovery	SERRF Joint Powers Authority	Long Beach, CA	90 GWh	Jun 1988	Mar 2024	Non-biogenic Municipal Solid Waste : 51.7% Biogenic Municipal Solid Waste : 42.3% Natural Gas : 6.1%
Buena Vista Energy LLC	Leeward Asset Management, LLC	Byron, CA	91 GWh	Nov 2006	Dec 2023	Wind
Alamo	California Dept. of Water Resources	Pearblossom, CA	91 GWh	Jun 1986	Dec 2023	Water
Mariposa Energy Project	Diamond Generating Corporation	Byron, CA	93 GWh	Sep 2012	Aug 2024	Natural Gas
CM48	Consolidated Edison Development Inc.	Boulder City, NV	93 GWh	May 2010	Dec 2023	Solar
Edwards Sanborn S1	Terra-Gen Operating Co-Hybrid	Mojave, CA	93 GWh	Feb 2022	Aug 2024	Solar
Sierra Pacific Burney Facility	Sierra Pacific Industries	Burney, CA	94 GWh	Sep 1986	Dec 2023	Wood/Wood Waste Solids
RE Gaskell West 2 LLC	RE Gaskell West LLC	Rosamond, CA	95 GWh	Apr 2023	Aug 2024	Solar
Southeast Kern River Cogen	Chevron USA Inc	Bakersfield, CA	96 GWh	Jan 1989	Aug 2024	Natural Gas
W R Gianelli	California Dept. of Water Resources	Gustine, CA	96 GWh	Feb 1967	Aug 2024	Water
Elevation Solar C	AES Distributed Energy	Lancaster, CA	97 GWh	Nov 2016	Aug 2024	Solar
FPL Energy Montezuma Winds LLC	FPL Energy Montezuma Wind	Birds Landing, CA	98 GWh	Oct 2010	Dec 2023	Wind
Pio Pico Energy Center	Pio Pico Energy Center LLC	San Diego, CA	100 GWh	Oct 2016	Dec 2023	Natural Gas
El Dorado	El Dorado Irrigation District	Pollock Pines, CA	101 GWh	Dec 1923	Dec 2023	Water
Five Points Solar Park	Five Points Solar Park, LLC	Five Points, CA	102 GWh	Aug 2016	Dec 2023	Solar
Mesquite Solar 4, LLC	Consolidated Edison Development Inc.	Tonopah, AZ	104 GWh	-	Aug 2024	Solar
Mammoth G3	Ormat Nevada Inc	Mammoth Lakes, CA	104 GWh	Nov 1990	Dec 2023	Geothermal
Friant Hydro Facility	Friant Power Authority	Friant, CA	106 GWh	Mar 1985	Dec 2023	Water
UCI Facilities Management Central Plant	University of California Irvine	Irvine, CA	112 GWh	Jun 2007	Aug 2024	Natural Gas
Dutch Flat	Pacific Gas & Electric Co.	Alta, CA	112 GWh	Feb 1943	Dec 2023	Water
San Gorgonio Westwinds II LLC	Terra-Gen Operating Co-Wind	North Palm Springs, CA	112 GWh	May 1999	Dec 2023	Wind
Antelope DSR 1	AES Distributed Energy	Lancaster, CA	114 GWh	Nov 2016	Aug 2024	Solar
SEGS IX	Terra-Gen Operating Co-Solar	Hinkley, CA	114 GWh	Aug 1990	Aug 2024	Solar
AES Huntington Beach LLC	AES Huntington Beach LLC	Huntington Beach, CA	115 GWh	May 1958	Jul 2024	Natural Gas
Sunshine Gas Producers	Sunshine Gas Producers LLC	Sylmar, CA	116 GWh	Jul 2014	Aug 2024	Landfill Gas
Little Bear 5	Little Bear Solar 5, LLC (Longroad)	Mendota, CA	118 GWh	Nov 2020	Aug 2024	Solar
RE Camelot LLC	Onward Energy	Mojave, CA	118 GWh	Nov 2014	Dec 2023	Solar
Borden Solar Farm	41MB 8me, LLC	Madera, CA	118 GWh	May 2020	Aug 2024	Solar
Cabazon Wind Partners	Shell Wind Energy Inc.	Cabazon, CA	118 GWh	Sep 2002	Dec 2023	Wind
Ridgetop	Terra-Gen Operating Co-Wind	Mojave, CA	120 GWh	Mar 1994	Dec 2023	Wind
Cresta	Pacific Gas & Electric Co.	Storrie, CA	122 GWh	Oct 1949	Dec 2023	Water
Humboldt Sawmill Company	Mendocino Forest Products	Scotia, CA	123 GWh	Dec 1937	Aug 2024	Wood/Wood Waste Solids : 99.7%
Sand Bar Power Plant	Tri-Dam Power Authority	Stanislaus Ntl. Fores, CA	124 GWh	Apr 1986	Dec 2023	Water
Tulloch	Oakdale&South San Joaquin Irrigation D.	Jamestown, CA	125 GWh	May 1958	Dec 2023	Water
Resurgence Solar II	Resurgence Solar II	Boron, CA	125 GWh	Jul 2023	Aug 2024	Solar
Cameron Ridge LLC	Terra-Gen Operating Co-Wind	Mojave, CA	125 GWh	Nov 1984	Dec 2023	Wind
Scarlet Solar (CA)	EDP Renewables North America LLC	Fresno, CA	125 GWh	-	Aug 2024	Solar
Golden Hills North Wind Energy Center	Golden Hills Interconnection Wind, LLC	Livermore, CA	127 GWh	Oct 2017	Aug 2024	Wind
Luciana	Tulare Solar Center, LLC	Richgrove, CA	128 GWh	Mar 2022	Aug 2024	Solar
Edwards Sanborn E5	Terra-Gen Operating Co-Hybrid	Mojave, CA	133 GWh	Nov 2022	Aug 2024	Solar
Desert Harvest II LLC	Desert Harvest II LLC	Desert Center, CA	134 GWh	Nov 2020	Aug 2024	Solar
Chicago Park	Nevada Irrigation District	Colfax, CA	135 GWh	Oct 1965	Dec 2023	Water
North Star Solar	Southern Power Co	Mendota, CA	136 GWh	May 2015	Dec 2023	Solar
Pacific-Ultrapower Chinese Station	IHI Power Services Corp	Jamestown, CA	136 GWh	Sep 1986	Aug 2024	Wood/Wood Waste Solids : 99.6%
Berry Cogen Tanne Hills 18	Berry Petroleum Co	Maricopa, CA	137 GWh	Nov 1986	Aug 2024	Natural Gas
Golden Fields Solar I, LLC	MN8 Energy LLC	Rosamond, CA	140 GWh	Nov 2016	Aug 2024	Solar
Marsh Landing Generating Station	Marsh Landing LLC	Antioch, CA	141 GWh	Apr 2013	Aug 2024	Natural Gas
SPI Anderson 2	Sierra Pacific Industries	Anderson, CA	142 GWh	Jul 2015	Dec 2023	Wood/Wood Waste Solids : 99.8%
El Segundo Energy Center LLC	El Segundo Energy Center, LLC	El Segundo, CA	143 GWh	Jun 2013	Aug 2024	Natural Gas
Voyager Wind III	Terra-Gen Operating Co-Wind	Mojave, CA	143 GWh	Nov 2018	Aug 2024	Wind
Regulus Solar Project	Regulus Solar, LLC	Bakersfield, CA	145 GWh	Oct 2014	Dec 2023	Solar
Titan Solar 1 (CA)	Titan Solar 1, LLC	Borrego Springs, CA	145 GWh	Nov 2020	Aug 2024	Solar
Kumeyaay Wind	Leeward Asset Management, LLC	Campo, CA	145 GWh	Nov 2005	Dec 2023	Wind
Rio Bravo Fresno	Rio Bravo Fresno	Fresno, CA	145 GWh	Jun 1988	Dec 2023	Wood/Wood Waste Solids : 97.0% Natural Gas : 3.0%
Butt Valley	Pacific Gas & Electric Co.	Belden, CA	147 GWh	Nov 1958	Dec 2023	Water
Rio Bravo Rocklin	Rio Bravo Rocklin	Lincoln, CA	147 GWh	May 1989	Dec 2023	Wood/Wood Waste Solids : 98.8% Natural Gas : 1.2%
Alta Wind Energy Center IV	Alta Wind Energy Center IV	Mojave, CA	148 GWh	Mar 2011	Dec 2023	Wind
Solar Star California, XLI, LLC	MN8 Energy LLC	Rosamond, CA	148 GWh	Nov 2016	Aug 2024	Solar
RE Mustang LLC	MN8 Energy LLC	Lemoore, CA	150 GWh	Jul 2016	Dec 2023	Solar
Dillon Wind LLC	Avangrid Renewables LLC	North Palm Springs, CA	151 GWh	Mar 2008	Dec 2023	Wind
Big Creek 8	Southern California Edison Co	Auberry, CA	153 GWh	Jul 1921	Dec 2023	Water
Forbestown	South Feather Water and Power Agency	Forbestown, CA	155 GWh	Sep 1963	Dec 2023	Water
Valero Refinery Cogeneration Unit 1	Valero Refining Co California	Benicia, CA	155 GWh	Sep 2002	Aug 2024	Natural Gas : 76.7% Other Gas : 23.3%
Kern River Cogeneration	Kern River Cogeneration Co	Bakersfield, CA	156 GWh	Jun 1985	Aug 2024	Natural Gas
Puente Hills Energy Recovery	Los Angeles County Sanitation	Whittier, CA	159 GWh	Sep 1986	Aug 2024	Landfill Gas

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#28	Arizona Public Service Company	21.8 TWh	75
#52	Arlington Valley, LLC	3.6 TWh	1
#35	Balancing Authority of Northern California	15.2 TWh	83
#48	Imperial Irrigation District	5.7 TWh	65
#33	Los Angeles Department of Water and Power	15.9 TWh	120
#22	Nevada Power Company	37.6 TWh	136
#56	New Harquahala Generating Company, LLC	2.9 TWh	1
#18	Salt River Project Agricultural Improvement and Power District	59.0 TWh	45
#57	Turlock Irrigation District	2.3 TWh	11
#41	Western Area Power Administration - Desert Southwest Region	8.6 TWh	30

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	461.0 TWh	1,139
#5	Southwest Power Pool	290.4 TWh	762
#6	Southern Company Services, Inc. - Trans	247.9 TWh	393
#7	California Independent System Operator	191.5 TWh	1,943
#9	Tennessee Valley Authority	157.5 TWh	170
#10	Florida Power & Light Co.	147.7 TWh	159
#12	New York Independent System Operator	130.0 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556
#15	ISO New England	102.8 TWh	1,487
#16	Bonneville Power Administration	80.0 TWh	158