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	192.0 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 \| 45.4% Solar \| 23.1% Water \| 12% Wind \| 10.1% Nuclear \| 9.1%

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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
MM Lopez Energy	MM Lopez Energy LLC	Lake View Terrace, CA	26 GWh	Nov 1998	Dec 2023	Landfill Gas
MM Tulare Energy	MM Tulare Energy LLC	Visalia, CA	10 GWh	Apr 1998	Dec 2023	Landfill Gas
Marina Landfill Gas	Monterey Regional Waste Mgmt	Marina, CA	34 GWh	Mar 1998	Dec 2023	Landfill Gas
Sunnyvale City of WPCP	Sunnyvale City of WPCP	Sunnyvale, CA	10 GWh	Oct 1997	Dec 2023	Natural Gas : 40.7% Landfill Gas : 30.6% Other Biomass Gas : 28.7%
MM San Diego-Miramar	MM San Diego Energy-Miramar	San Diego, CA	36 GWh	Jun 1997	Dec 2023	Landfill Gas : 90.2% Other Biomass Gas : 9.8%
Tehachapi Wind Resource II	CalWind Resources Inc	Tehachapi, CA	42 GWh	Dec 1996	Dec 2023	Wind
Mojave Siphon	California Dept. of Water Resources	Hesperia, CA	70 GWh	Jul 1996	Dec 2023	Water
Sonoma Central Landfill Phase II	County of Sonoma Dept of Trnsp	Petaluma, CA	7 GWh	May 1996	Dec 2023	Landfill Gas
Combustion Turbine Project No 2	Northern California Power Agny	Lodi, CA	7 GWh	Mar 1996	Dec 2023	Natural Gas
Parnassus Central Utility Plant	University of California-San Francisco	San Francisco, CA	69 GWh	Dec 1995	Sep 2024	Natural Gas
Crockett Cogen Project	Crockett Cogeneration	Crockett, CA	2 TWh	Nov 1995	Sep 2024	Natural Gas
CCCSD Wastewater Treatment Plnt	Central Contra Costa Sanitary District	Martinez, CA	21 GWh	Nov 1995	Sep 2024	Natural Gas
Martinez Refining	Martinez Refining Co	Martinez, CA	708 GWh	Oct 1995	Sep 2024	Natural Gas : 96.7% Other Gas : 3.3%
Bear Mountain Limited	WCAC Operating Company	Bakersfield, CA	42 GWh	Mar 1995	Sep 2024	Natural Gas
Etiwanda	Metropolitan Water District of S CA	Rancho Cucamonga, CA	17 GWh	Nov 1994	Dec 2023	Water
Elk Hills Cogen	California Resources Elk Hills LLC	Tupman, CA	81 GWh	Oct 1994	Aug 2024	Natural Gas
Goal Line LP	Goal Line LP	Escondido, CA	13 GWh	Jul 1994	Sep 2024	Natural Gas
Solano Wind	Sacramento Municipal Util Dist	Rio Vista, CA	593 GWh	May 1994	Sep 2024	Wind
Ridgetop	Terra-Gen Operating Co-Wind	Mojave, CA	120 GWh	Mar 1994	Dec 2023	Wind
Springville Hydroelectric	Calleguas Mun Water District	Camarillo, CA	363 MWh	Feb 1994	Dec 2023	Water
Deadwood Creek	Hydro Sierra Energy, LLC	Dobbins, CA	3 GWh	Nov 1993	Aug 2023	Water
Grizzly	City of Santa Clara - (CA)	N/A, CA	2 GWh	Oct 1993	Dec 2023	Water
J.R. Simplot Company	J.R. Simplot Company	Lathrop, CA	9 GWh	Sep 1993	Dec 2023	Waste Heat
Sonoma Central Landfill Phase I	County of Sonoma Dept of Trnsp	Petaluma, CA	8 GWh	Jun 1993	Dec 2023	Landfill Gas
Plant No 1 Orange County	Orange County Sanitation Dist	Fountain Valley, CA	39 GWh	May 1993	Dec 2023	Other Biomass Gas : 80.7% Natural Gas : 19.3%
Plant No 2 Orange County	Orange County Sanitation Dist	Huntington Beach, CA	59 GWh	May 1993	Dec 2023	Other Biomass Gas : 77.5% Natural Gas : 22.5%
MM West Covina	MM West Covina Energy LLC	West Covina, CA	40 GWh	May 1993	Dec 2023	Landfill Gas : 99.4% Natural Gas : 0.6%
Coram Tehachapi	Nextera Energy Resources	Tehachapi, CA	4 GWh	Aug 1992	Dec 2023	Wind
Richmond Cogen	Chevron Products Company-Richmond	Richmond, CA	922 GWh	Jul 1992	Sep 2024	Natural Gas : 97.8% Other Gas : 2.2%
Forks of Butte Hydro Project	HYPOWER INC	Magalia, CA	42 GWh	Feb 1992	Dec 2023	Water
Live Oak Limited	WCAC Operating Company	Bakersfield, CA	23 GWh	Feb 1992	Sep 2024	Natural Gas
Salinas River Cogeneration	Salinas River Cogeneration Co	San Ardo, CA	229 GWh	Oct 1991	Sep 2024	Natural Gas
McKittrick Limited	WCAC Operating Company	Bakersfield, CA	17 GWh	Sep 1991	Sep 2024	Natural Gas
Badger Creek Limited	WCAC Operating Company	Bakersfield, CA	21 GWh	Mar 1991	Sep 2024	Natural Gas
Sky River Wind Energy Center	Sky River Wind LLC	Tehachapi, CA	202 GWh	Jan 1991	Dec 2023	Wind
City of Tulare Water Facility	City of Tulare Water Pollution Control	Tulare, CA	24 GWh	Dec 1990	Dec 2022	Natural Gas : 83.2% Solar : 16.8%
Isabella Hydro Project	Isabella Partners	Lake Isabella, CA	3 GWh	Nov 1990	Mar 2023	Water
Kingsburg Cogen	KES Kingsburg LP	Kingsburg, CA	5 GWh	Nov 1990	Dec 2023	Natural Gas
Mammoth G3	Ormat Nevada Inc	Mammoth Lakes, CA	104 GWh	Nov 1990	Dec 2023	Geothermal
Mammoth G2	Ormat Nevada Inc	Mammoth Lakes, CA	62 GWh	Nov 1990	Dec 2023	Geothermal
Mojave 3/4/5	Terra-Gen Operating Co-Wind	Mojave, CA	83 GWh	Nov 1990	Dec 2023	Wind
Yuba City Cogen Partners	Wellhead Services, Inc	Yuba City, CA	19 GWh	Nov 1990	Dec 2023	Natural Gas
Agnews Power Plant	OLS Energy-Agnews Inc.	San Jose, CA	36 GWh	Oct 1990	Dec 2023	Natural Gas
MM Yolo Power	Yolo County Community Services Department	Woodland, CA	18 GWh	Sep 1990	Dec 2023	Landfill Gas
SEGS IX	Terra-Gen Operating Co-Solar	Hinkley, CA	112 GWh	Aug 1990	Sep 2024	Solar
Kings River Syphon	Orange Cove Irrigation District	Sanger, CA	1 GWh	Aug 1990	May 2023	Water
E F Oxnard Energy Facility	EF Oxnard, LLC	Oxnard, CA	8 GWh	May 1990	Sep 2024	Natural Gas
Biola University Hybrid	Biola University	La Mirada, CA	11 GWh	Mar 1990	Sep 2024	Natural Gas
Burney Creek	Snow Mountain Hydro LLC	Burney, CA	6 GWh	Feb 1990	Dec 2023	Water
Ponderosa Bailey Creek	Snow Mountain Hydro LLC	Manton, CA	3 GWh	Feb 1990	Dec 2023	Water
Chalk Cliff Limited	WCAC Operating Company	Bakersfield, CA	22 GWh	Feb 1990	Sep 2024	Natural Gas
Berry Placerita Cogen	Shadow Wolf Energy	Santa Clarita, CA	31 GWh	Feb 1990	Sep 2024	Natural Gas
Terminus Hydroelectric Project	Eagle Creek Renewable Energy, LLC	Lemon Cove, CA	61 GWh	Feb 1990	Dec 2023	Water
Western Power & Steam Inc	Western Power and Steam II LLC	Bakersfield, CA	28 GWh	Feb 1990	Sep 2024	Natural Gas
Welport Lease Project	Sentinel Peak Resources California, LLC	McKittrick, CA	21 GWh	Feb 1990	Dec 2023	Natural Gas
Cove Hydroelectric	Snow Mountain Hydro LLC	Burney, CA	14 GWh	Jan 1990	Dec 2023	Water
Fresno Cogen Partners	Wellhead Services, Inc	San Joaquin, CA	3 GWh	Dec 1989	Dec 2023	Natural Gas
Bear Creek	Central Rivers Power US, LLC	Shingletown, CA	6 GWh	Dec 1989	Dec 2023	Water
Olsen	Olsen Power Partners	Whitmore, CA	18 GWh	Dec 1989	Dec 2023	Water
EDF Renewable Windfarm V Inc	EDF Renewable Asset Holdings, Inc.	Birds Landing, CA	21 GWh	Dec 1989	Dec 2023	Wind
Oroville Cogeneration LP	Oroville Cogeneration LP	Oroville, CA	235 MWh	Dec 1989	Dec 2023	Natural Gas
Carson Cogeneration	Carson Cogeneration Co	Carson, CA	35 GWh	Nov 1989	Dec 2023	Natural Gas
Tulare Success Power Project	Lower Tule River Irrgtn Dist	Porterville, CA	538 MWh	Nov 1989	Dec 2022	Water
Lockhart Solar PV, LLC	Terra-Gen Operating Co-Solar	Hinkley, CA	224 GWh	Nov 1989	Sep 2024	Solar
Lost Creek I	Snow Mountain Hydro LLC	Burney, CA	5 GWh	Nov 1989	Dec 2023	Water
Mojave 16/17/18	Terra-Gen Operating Co-Wind	Mojave, CA	54 GWh	Nov 1989	Dec 2023	Wind
Kekawaka Power House	Eagle Creek Renewable Energy, LLC	Mirinda, CA	8 GWh	Nov 1989	Dec 2022	Water
Coso Power Developers	Coso Operating Co LLC	Inyokern, CA	328 GWh	Oct 1989	Sep 2024	Geothermal
Spicer Meadow Project	Northern California Power Agny	Murphys, CA	30 GWh	Oct 1989	Dec 2023	Water
Collierville Powerhouse	Northern California Power Agny	Murphys, CA	532 GWh	Oct 1989	Sep 2024	Water
Greenleaf 2 Power Plant	Greenleaf Energy LLC	Yuba City, CA	34 GWh	Sep 1989	Sep 2024	Natural Gas
Burney Forest Products	Burney Forest Products, A Joint Venture	Burney, CA	187 GWh	Sep 1989	Dec 2023	Wood/Wood Waste Solids : 96.1% Natural Gas : 3.9%
Nelson Creek	Nelson Creek Power Inc	Big Bend, CA	3 GWh	Sep 1989	Dec 2023	Water
Woodland Biomass Power Ltd	DTE Energy Services-Woodland	Woodland, CA	172 GWh	Aug 1989	Dec 2023	Wood/Wood Waste Solids : 99.6%
HL Power	HL Power Company	Wendel, CA	205 GWh	Jun 1989	Dec 2023	Wood/Wood Waste Solids : 99.7%
Aera San Ardo Cogen Facility	Aera Energy LLC-San Ardo	San Ardo, CA	24 GWh	Jun 1989	Dec 2023	Natural Gas
Rio Bravo Rocklin	Rio Bravo Rocklin	Lincoln, CA	147 GWh	May 1989	Dec 2023	Wood/Wood Waste Solids : 98.8% Natural Gas : 1.2%
Solano County Cogen Plant	Solano County	Fairfield, CA	8 GWh	May 1989	Dec 2023	Natural Gas
Rio Bravo Hydro Project	Olcese Water District	Bakersfield, CA	31 GWh	Apr 1989	Dec 2023	Water
Aidlin Geothermal Power Plant	Geysers Power Co LLC	Middletown, CA	77 GWh	Apr 1989	Dec 2023	Geothermal
Midway Sunset Cogen	Midway-Sunset Cogeneration Co	Fellows, CA	267 GWh	Apr 1989	Sep 2024	Natural Gas
Mt Poso Cogeneration	Mt Poso Cogeneration Co	Bakersfield, CA	268 GWh	Apr 1989	Sep 2023	Wood/Wood Waste Solids : 99.5% Natural Gas : 0.5%
New Hogan Power Plant	Modesto Irrigation District	Valley Springs, CA	11 GWh	Mar 1989	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%
Double C Generation Limited Partnership	WCAC Operating Company	Bakersfield, CA	23 GWh	Feb 1989	Dec 2023	Natural Gas
High Sierra Limited	WCAC Operating Company	Bakersfield, CA	23 GWh	Feb 1989	Dec 2023	Natural Gas
King City Power Plant	Calpine King City Cogen LLC	King City, CA	44 GWh	Jan 1989	Sep 2024	Natural Gas
Greenleaf 1	Calpine Greenleaf Holding, Inc.	Yuba City, CA	3 GWh	Jan 1989	Dec 2023	Natural Gas
Kern Front Limited	WCAC Operating Company	Bakersfield, CA	22 GWh	Jan 1989	Dec 2023	Natural Gas
Southeast Kern River Cogen	Chevron USA Inc	Bakersfield, CA	86 GWh	Jan 1989	Sep 2024	Natural Gas
Haypress	EIF Haypress LLC	Sierra City, CA	22 GWh	Nov 1988	Aug 2023	Water
Muck Valley Hydroelectric	Brookfield Renewable Trading and Marketing LP	NA, CA	83 GWh	Nov 1988	Dec 2023	Water
Coso Energy Developers	Coso Operating Co LLC	Inyokern, CA	277 GWh	Nov 1988	Dec 2023	Geothermal
Harbor Cogen	Harbor Cogeneration Co.	Wilmington, CA	26 GWh	Nov 1988	Dec 2023	Natural Gas
Cymric 31X Cogen	Chevron USA Inc	McKittrick, CA	37 GWh	Sep 1988	Dec 2023	Natural Gas
Black Butte	City of Santa Clara - (CA)	Orland, CA	20 GWh	Aug 1988	Dec 2023	Water
Covanta Stanislaus Energy	Covanta Stanislaus Inc	Crows Landing, CA	85 GWh	Aug 1988	Sep 2024	Non-biogenic Municipal Solid Waste : 51.1% Biogenic Municipal Solid Waste : 41.8% Distillate Fuel Oil : 7.1%
Dome Project	Sentinel Peak Resources California, LLC	Fellows, CA	49 GWh	Jul 1988	Dec 2023	Natural Gas
Monterey One Water	Monterey One Water	Marina, CA	8 GWh	Jul 1988	Dec 2023	Other Biomass Gas : 81.7% Natural Gas : 18.3%
Rio Bravo Fresno	Rio Bravo Fresno	Fresno, CA	145 GWh	Jun 1988	Dec 2023	Wood/Wood Waste Solids : 97.0% Natural Gas : 3.0%

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#28	Arizona Public Service Company	22.0 TWh	75
#53	Arlington Valley, LLC	3.6 TWh	1
#36	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	16.0 TWh	120
#22	Nevada Power Company	37.8 TWh	136
#56	New Harquahala Generating Company, LLC	2.9 TWh	1
#18	Salt River Project Agricultural Improvement and Power District	58.9 TWh	45
#57	Turlock Irrigation District	2.3 TWh	11
#41	Western Area Power Administration - Desert Southwest Region	8.5 TWh	30

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	462.2 TWh	1,139
#5	Southwest Power Pool	290.4 TWh	762
#6	Southern Company Services, Inc. - Trans	248.1 TWh	393
#7	California Independent System Operator	192.0 TWh	1,943
#9	Tennessee Valley Authority	157.6 TWh	170
#10	Florida Power & Light Co.	147.6 TWh	159
#12	New York Independent System Operator	129.8 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556
#15	ISO New England	103.1 TWh	1,487
#16	Bonneville Power Administration	80.0 TWh	158