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
Lincoln Landfill	Energy 2001 Inc	Lincoln, CA	29 GWh	Oct 2004	Dec 2025	Landfill Gas
Signal Hill West Unit	Signal Hill Petroleum, Inc	Signal Hill, CA	39 GWh	Jun 2004	May 2026	Other Gas
Sycamore Energy LLC	Sycamore Energy LLC	Santee, CA	23 GWh	Mar 2004	Dec 2025	Landfill Gas
Sierra Pacific Lincoln Facility	Sierra Pacific Industries	Lincoln, CA	80 GWh	Feb 2004	Dec 2025	Wood/Wood Waste Solids
Naval Hospital Medical Center	Department of the Navy	San Diego, CA	17 GWh	Nov 2003	May 2026	Natural Gas
Blythe Energy Inc	AltaGas Blythe Operations Inc	Blythe, CA	316 GWh	Nov 2003	May 2026	Natural Gas
Mountain View III	Avangrid Power LLC	North Palm Springs, CA	81 GWh	Nov 2003	Dec 2025	Wind
One Market Plaza	Paramount Group Inc	San Francisco, CA	1 GWh	Nov 2003	Dec 2025	Natural Gas
California Institute of Technology	California Institute-Technology	Pasadena, CA	60 GWh	Jul 2003	May 2026	Natural Gas
Elk Hills Power LLC	Elk Hills Power LLC	Tupman, CA	3 TWh	Jun 2003	May 2026	Natural Gas
High Winds LLC	FPLE High Winds, LLC	Birds Landing, CA	214 GWh	Jun 2003	Dec 2025	Wind
Agua Mansa Power Plant	E I Colton LLC	Colton, CA	4 GWh	May 2003	Dec 2025	Natural Gas
Riverview Energy Center	Gilroy Energy Center for Riverview	Antioch, CA	12 GWh	Apr 2003	Dec 2025	Natural Gas
High Desert Power Plant	MRP Generation Holdings, LLC	Victorville, CA	3 TWh	Mar 2003	May 2026	Natural Gas
Tracy Combined Cycle Power Plant	MRP San Joaquin Energy LLC.	Tracy, CA	698 GWh	Mar 2003	May 2026	Natural Gas
Los Esteros Critical Energy Center	Los Esteros Critical Energy Facility LLC	San Jose, CA	167 GWh	Jan 2003	May 2026	Natural Gas
MCAGCC Cogen Plant	DOD USMC Marine Air Ground Combat	Twentynine Palms, CA	69 GWh	Jan 2003	Dec 2024	Natural Gas
La Paloma Generating Plant	CXA La Paloma LLC	McKittrick, CA	1 TWh	Dec 2002	May 2026	Natural Gas
Creed Energy Center	Creed Energy Center LLC	Suisun, CA	3 GWh	Dec 2002	Dec 2025	Natural Gas
Lambie Energy Center	Gilroy Energy Center LLC	Suisun, CA	5 GWh	Dec 2002	Dec 2025	Natural Gas
Goose Haven Energy Center	Goose Haven Energy Center	Suisun, CA	4 GWh	Dec 2002	Dec 2025	Natural Gas
Feather River Energy Center	Calpine Corp-Yuba City	Yuba City, CA	35 GWh	Dec 2002	Dec 2025	Natural Gas
Wolfskill Energy Center	Gilroy Energy Center LLC	Fairfield, CA	4 GWh	Dec 2002	Dec 2025	Natural Gas
THUMS	THUMS Long Beach Company	Long Beach, CA	158 GWh	Dec 2002	May 2026	Natural Gas
Valero Refinery Cogeneration Unit 1	Valero Refining Co California	Benicia, CA	237 GWh	Sep 2002	Feb 2026	Natural Gas : 85.2% Other Gas : 14.8%
Cabazon Wind Partners	Shell Wind Energy Inc.	Cabazon, CA	108 GWh	Sep 2002	Dec 2025	Wind
Whitewater Hill Wind Partners	Shell Wind Energy Inc.	North Palm Springs, CA	127 GWh	Sep 2002	Dec 2025	Wind
Kern Oil & Refining Co	Kern Oil & Refining Co	Bakersfield, CA	36 GWh	Sep 2002	May 2026	Natural Gas
San Diego State University	San Diego State University	San Diego, CA	57 GWh	Aug 2002	May 2026	Natural Gas : 97.4% Solar : 2.6%
Yuba City Energy Center	Calpine Corp-Yuba City	Yuba City, CA	23 GWh	Jul 2002	Dec 2025	Natural Gas
Springs Generating Station	City of Riverside - (CA)	Riverside, CA	878 MWh	Jun 2002	Dec 2025	Natural Gas
CalPeak Power Vaca Dixon Peaker Plant	CalPeak Power, LLC	Vacaville, CA	7 GWh	May 2002	Dec 2025	Natural Gas
Henrietta Peaker	MRP San Joaquin Energy LLC.	Lemoore, CA	3 GWh	May 2002	May 2026	Natural Gas
SF Southeast Cogen Plant	City & County of San Francisco - (CA)	San Francisco, CA	341 MWh	May 2002	Dec 2025	Other Biomass Gas
Delta Energy Center	Delta Energy Center LLC	Pittsburg, CA	3 TWh	Apr 2002	May 2026	Natural Gas
Cuyamaca Peak Energy Plant	San Diego Gas & Electric Co	El Cajon, CA	10 GWh	Apr 2002	Dec 2025	Natural Gas
King City Peaking	Calpine Corp-King City	King City, CA	5 GWh	Mar 2002	Dec 2025	Natural Gas
Irwindale Brew Yard, LLC	Irwindale Brew Yard, LLC	Irwindale, CA	517 MWh	Jan 2002	Apr 2025	Solar : 99.8%
CalPeak Power Panoche Peaker Plant	CalPeak Power, LLC	Firebaugh, CA	2 GWh	Nov 2001	Dec 2025	Natural Gas
Border Hybrid Energy Center	CalPeak Power, LLC	San Diego, CA	9 GWh	Oct 2001	Dec 2025	Natural Gas
CalPeak Power Enterprise Peaker Plant	CalPeak Power, LLC	Escondido, CA	2 GWh	Oct 2001	Dec 2025	Natural Gas
Gilroy Peaking Energy Center	Calpine Gilroy Cogen LP	Gilroy, CA	31 GWh	Oct 2001	Dec 2025	Natural Gas
Watkins Manufacturing Co.	Watkins Manufacturing Corporation	San Diego, CA	8 GWh	Oct 2001	May 2026	Natural Gas
Hanford Energy Park Peaker	MRP San Joaquin Energy LLC.	Hanford, CA	3 GWh	Aug 2001	Apr 2026	Natural Gas
Century Generating Facility	Colton Power LP	Colton, CA	563 MWh	Aug 2001	Dec 2025	Natural Gas
Los Medanos Energy Center	Los Medanos Energy Center LLC	Pittsburg, CA	3 TWh	Jul 2001	May 2026	Natural Gas
Drews Generating Facility	Colton Power LP	Colton, CA	570 MWh	Jul 2001	Dec 2025	Natural Gas
Red Bluff	California Power Holdings LLC	Red Bluff, CA	10 GWh	Jul 2001	Dec 2024	Natural Gas
Indigo Energy Facility	Diamond Generating Corporation	North Palm Springs, CA	6 GWh	Jun 2001	Dec 2025	Natural Gas
Larkspur Energy Facility	Diamond Generating Corporation	San Diego, CA	23 GWh	Jun 2001	Dec 2025	Natural Gas
University of California San Diego Hybri	University of California San Diego	La Jolla, CA	232 GWh	Jun 2001	May 2026	Natural Gas
Sunrise Power LLC	Sunrise Power Co LLC	Fellows, CA	2 TWh	May 2001	May 2026	Natural Gas
Mountain View I & II	AES Distributed Energy	North Palm Springs, CA	250 GWh	May 2001	May 2026	Wind
Chowchilla II	California Power Holdings LLC	Chowchilla, CA	16 GWh	May 2001	Dec 2024	Natural Gas
Diamond Valley Lake	Metropolitan Water District of S CA	Winchester, CA	1 GWh	Apr 2001	Oct 2025	Water
Saint Agnes Medical Center	Saint Agnes Medical Center	Fresno, CA	32 GWh	Apr 2001	May 2026	Natural Gas
Chula Vista Energy Center	Wellhead Services, Inc	Chula Vista, CA	373 MWh	Apr 2001	Dec 2025	Natural Gas
Sierra Pacific Sonora	Sierra Pacific Industries	Standard, CA	43 GWh	Jan 2001	Dec 2025	Wood/Wood Waste Solids
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%
Blacksand Generating Facility	Bridge Energy LLC	Brea, CA	31 GWh	May 2000	Dec 2025	Natural Gas
Desert Star Energy Center	Desert Star Energy Center SDG&E	Boulder City, NV	329 GWh	Apr 2000	May 2026	Natural Gas
Childrens Hospital	DTE San Diego COGEN Inc.	San Diego, CA	26 GWh	Mar 2000	May 2026	Natural Gas : 99.9%
San Gorgonio Westwinds II LLC	Terra-Gen Operating Co-Wind	North Palm Springs, CA	123 GWh	May 1999	Dec 2025	Wind
Phoenix Wind Power LLC	Avangrid Power LLC	North Palm Springs, CA	5 GWh	May 1999	Dec 2025	Wind
Salka Cabazon Wind	Salka Cabazon Wind LLC	North Palm Springs, CA	13 GWh	Dec 1998	Dec 2025	Wind
MM Lopez Energy	MM Lopez Energy LLC	Lake View Terrace, CA	26 GWh	Nov 1998	Dec 2025	Landfill Gas
Marina Landfill Gas	Monterey Regional Waste Mgmt	Marina, CA	10 GWh	Mar 1998	Dec 2025	Landfill Gas
Sunnyvale City of WPCP	City of Sunnyvale WPCP - (CA)	Sunnyvale, CA	7 GWh	Oct 1997	Dec 2025	Other Biomass Gas : 41.3% Landfill Gas : 36.4% Natural Gas : 22.3%
MM San Diego-Miramar	MM San Diego Energy-Miramar	San Diego, CA	40 GWh	Jun 1997	Dec 2025	Landfill Gas : 91.4% Other Biomass Gas : 8.6%
Tehachapi Wind Resource II	CalWind Resources Inc	Tehachapi, CA	48 GWh	Dec 1996	Dec 2025	Wind
Mojave Siphon	California Dept. of Water Resources	Hesperia, CA	46 GWh	Jul 1996	Dec 2025	Water
Sonoma Central Landfill Phase II	County of Sonoma Dept of Trnsp	Petaluma, CA	2 GWh	May 1996	Dec 2025	Landfill Gas
Parnassus Central Utility Plant	University of California-San Francisco	San Francisco, CA	67 GWh	Dec 1995	May 2026	Natural Gas
Crockett Cogen Project	Crockett Cogeneration	Crockett, CA	1 TWh	Nov 1995	Feb 2026	Natural Gas
CCCSD Wastewater Treatment Plnt	Central Contra Costa Sanitary District	Martinez, CA	20 GWh	Nov 1995	May 2026	Natural Gas
Martinez Refining	Martinez Refining Co	Martinez, CA	669 GWh	Oct 1995	May 2026	Natural Gas : 96.6% Other Gas : 3.4%
Bear Mountain Limited	WCAC Operating Company	Bakersfield, CA	36 GWh	Mar 1995	Mar 2026	Natural Gas
Etiwanda	Metropolitan Water District of S CA	Rancho Cucamonga, CA	1 GWh	Nov 1994	Jul 2025	Water
Elk Hills Cogen	California Resources Elk Hills LLC	Tupman, CA	88 GWh	Oct 1994	May 2026	Natural Gas
Goal Line LP	Goal Line LP	Escondido, CA	12 GWh	Jul 1994	May 2026	Natural Gas
Solano Wind	Sacramento Municipal Util Dist	Rio Vista, CA	724 GWh	May 1994	May 2026	Wind
Ridgetop	Terra-Gen Operating Co-Wind	Mojave, CA	118 GWh	Mar 1994	Dec 2025	Wind
Springville Hydroelectric	Calleguas Mun Water District	Camarillo, CA	659 MWh	Feb 1994	Dec 2025	Water
Deadwood Creek	Hydro Sierra Energy, LLC	Dobbins, CA	2 GWh	Nov 1993	Dec 2025	Water
Grizzly	City of Santa Clara - (CA)	N/A, CA	43 GWh	Oct 1993	Dec 2025	Water
Sonoma Central Landfill Phase I	County of Sonoma Dept of Trnsp	Petaluma, CA	583 MWh	Jun 1993	Dec 2025	Landfill Gas
Plant No 1 Orange County	Orange County Sanitation Dist - (CA)	Fountain Valley, CA	41 GWh	May 1993	Dec 2025	Other Biomass Gas : 81.6% Natural Gas : 18.4%
Plant No 2 Orange County	Orange County Sanitation Dist - (CA)	Huntington Beach, CA	47 GWh	May 1993	Dec 2025	Other Biomass Gas : 77.2% Natural Gas : 22.8%
MM West Covina	MM West Covina Energy LLC	West Covina, CA	40 GWh	May 1993	Dec 2025	Landfill Gas : 99.7%
Richmond Cogen	Chevron Products Company-Richmond	Richmond, CA	956 GWh	Jul 1992	May 2026	Natural Gas : 97.6% Other Gas : 2.4%
Forks of Butte Hydro Project	Hypower Energy, LLC	Magalia, CA	58 GWh	Feb 1992	Dec 2025	Water
Live Oak Limited	WCAC Operating Company	Bakersfield, CA	20 GWh	Feb 1992	Mar 2026	Natural Gas
Salinas River Cogeneration	Salinas River Cogeneration Co	San Ardo, CA	255 GWh	Oct 1991	May 2026	Natural Gas
McKittrick Limited	WCAC Operating Company	Bakersfield, CA	4 GWh	Sep 1991	Mar 2026	Natural Gas
Badger Creek Limited	WCAC Operating Company	Bakersfield, CA	5 GWh	Mar 1991	Mar 2026	Natural Gas
Sky River Wind Energy Center	Sky River Wind LLC	Tehachapi, CA	211 GWh	Jan 1991	Dec 2025	Wind
City of Tulare Water Facility	City of Tulare Water Pollution Control - (CA)	Tulare, CA	16 GWh	Dec 1990	Dec 2025	Natural Gas : 61.0% Other Biomass Gas : 20.1% Solar : 19.0%
Isabella Hydro Project	Isabella Partners	Lake Isabella, CA	32 GWh	Nov 1990	Dec 2025	Water
Kingsburg Cogen	KES Kingsburg LP	Kingsburg, CA	8 GWh	Nov 1990	Sep 2025	Natural Gas
Mammoth G3	Ormat Nevada Inc	Mammoth Lakes, CA	75 GWh	Nov 1990	Dec 2025	Geothermal

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