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	Oct 2026
Annual Generation	168.7 TWh
Power Plants	2,170
Utilities	1,001
Ranked #7 out of 64 in terms of net annual generation
Ranked #14 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 32% Solar \| 30.9% Water \| 12.2% Wind \| 11.8% Nuclear \| 11.2% Coal \| 0%

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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
SunEdison Anheuser Busch Fairfield	SunE M5 Holdings LLC	Fairfield, CA	1 GWh	Nov 2008	Dec 2025	Solar
Wolfskill Energy Center	Gilroy Energy Center LLC	Fairfield, CA	4 GWh	Dec 2002	Dec 2025	Natural Gas
ATT North Watney	Bloom Energy	Fairfield, CA	8 GWh	Nov 2019	Dec 2025	Natural Gas
Anheuser Busch - Fairfield	Bloom Energy	Fairfield, CA	21 GWh	Nov 2022	Dec 2025	Natural Gas
Shasta Solar Farm	Ignite Solar Holdings LLC	Fall River Mills, CA	6 GWh	Feb 2014	Dec 2025	Solar
Dixie Valley	Ormat Nevada Inc	Fallon, NV	469 GWh	May 1988	Jul 2026	Geothermal
Cawelo Water District Solar	Scooby Solar, LLC	Famoso, CA	7 GWh	Sep 2023	Dec 2025	Solar
Farmersville	Arevon Energy, Inc.	Farmersville, CA	6 GWh	Jun 2014	Dec 2025	Solar
Midway Sunset Cogen	Midway-Sunset Cogeneration Co	Fellows, CA	8 GWh	Apr 1989	Jul 2026	Natural Gas
Dome Project	Sentinel Peak Resources California, LLC	Fellows, CA	48 GWh	Jul 1988	Dec 2025	Natural Gas
Sunrise Power LLC	Sunrise Power Co LLC	Fellows, CA	2 TWh	May 2001	Jul 2026	Natural Gas
Ventura Solar	Ventura Solar LLC	Fillmore, CA	6 GWh	Aug 2021	Dec 2025	Solar
Wonderful Orchards - New Columbia	Wonderful Renewable Energy, LLC.	Firebaugh, CA	11 GWh	Aug 2020	Dec 2025	Solar
Wonderful Firebaugh	Wonderful Renewable Energy, LLC.	Firebaugh, CA	10 GWh	Jul 2022	Dec 2025	Solar
Firebaugh-CCS-PV-1	Mike Woolf Farming	Firebaugh, CA	2 GWh	Feb 2015	Dec 2025	Solar
Conflitti Solar	CES Electron Farm One, LLC	Firebaugh, CA	100 MWh	-	Dec 2025	Solar
Wellhead Power Panoche	Wellhead Services, Inc	Firebaugh, CA	7 GWh	Jul 1973	Dec 2025	Natural Gas
CalPeak Power Panoche Peaker Plant	CalPeak Power, LLC	Firebaugh, CA	2 GWh	Nov 2001	Nov 2025	Natural Gas
Panoche Energy Center	Panoche Energy Center, LLC	Firebaugh, CA	731 GWh	May 2009	Jul 2026	Natural Gas
Midway Peaking LLC	CalPeak Power, LLC	Firebaugh, CA	6 GWh	Apr 2009	Dec 2025	Natural Gas
Westside Solar Station	Pacific Gas & Electric Co.	Five Points, CA	12 GWh	Jul 2011	Dec 2025	Solar
Five Points Solar Station	Pacific Gas & Electric Co.	Five Points, CA	13 GWh	Aug 2011	Dec 2025	Solar
Five Points Solar Park	Boralex US Operations LLC	Five Points, CA	81 GWh	Aug 2016	Dec 2025	Solar
Whitney Point Solar	Whitney Point Solar, LLC	Five Points, CA	54 GWh	Feb 2017	Dec 2025	Solar
NextEra Westside PV	Westside Solar, LLC	Five Points, CA	26 GWh	Feb 2017	Dec 2025	Solar
Mountain View Ind Park 1-sline001	Prologis Logistics Services Incorporated	Fontana, CA	371 MWh	Aug 2023	Dec 2025	Solar
IOS II-LAX9	Madison Energy Holdings LLC	Fontana, CA	4 GWh	Jan 2020	Dec 2025	Solar
Woodleaf	South Feather Water and Power Agency	Forbestown, CA	167 GWh	Oct 1963	Dec 2025	Water
Forbestown	South Feather Water and Power Agency	Forbestown, CA	115 GWh	Sep 1963	Dec 2025	Water
Sly Creek	South Feather Water and Power Agency	Forbestown, CA	27 GWh	Jun 1983	Dec 2025	Water
Ralston	Placer County Water Agency - (CA)	Foresthill, CA	303 GWh	Sep 1966	Dec 2025	Water
Oxbow (CA)	Placer County Water Agency - (CA)	Foresthill, CA	23 GWh	Sep 1966	Dec 2025	Water
French Meadows	Placer County Water Agency - (CA)	Foresthill, CA	43 GWh	Sep 1966	Dec 2025	Water
Middle Fork	Placer County Water Agency - (CA)	Foresthill, CA	459 GWh	Sep 1966	Jul 2026	Water
Gilead Foster City Solar Project	Gilead Sciences Inc. Foster City	Foster City, CA	2 GWh	Mar 2021	Dec 2025	Solar
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%
National Raisin	National Raisin	Fowler, CA	5 GWh	May 2015	Dec 2025	Solar
Fremont - Kato Rd	Tesla Inc.	Fremont, CA	2 GWh	Nov 2016	Dec 2025	Solar
Fremont CA AutoFactory	Tesla Inc.	Fremont, CA	524 MWh	Feb 2022	Dec 2025	Solar
Life Technologies - Fremont	Bloom Energy	Fremont, CA	10 GWh	Nov 2020	Dec 2025	Natural Gas
Delta Electronics Fremont	Delta Electronics (Americas) Ltd	Fremont, CA	701 MWh	Mar 2016	Dec 2025	Solar
JD Foods - JD Foods	Barrier Solar Inc	Fresno, CA	2 GWh	Sep 2020	Dec 2025	Solar
CA - Fresno, City of - SE Surface WTP	Forefront Power, LLC	Fresno, CA	7 GWh	Dec 2024	Dec 2025	Solar
Scarlet Solar (CA)	EDP Renewables North America LLC	Fresno, CA	480 GWh	May 2024	Jul 2026	Solar
Fresno-Clovis RWRF	Forefront Power, LLC	Fresno, CA	28 GWh	Mar 2025	Dec 2025	Solar
POM Juice Solar	Wonderful Renewable Energy, LLC.	Fresno, CA	4 GWh	Jun 2021	Dec 2025	Solar
OK Produce Fresno Carport	OK Produce	Fresno, CA	3 GWh	Dec 2018	Dec 2025	Solar
CA - Fresno County - Juvenile Hall	Forefront Power, LLC	Fresno, CA	7 GWh	Feb 2022	Dec 2025	Solar
SCCCD - Clovis Community College	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2018	Nov 2025	Solar
Fresno Bullard High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2025	Solar
Fresno Hoover High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2025	Solar
Fresno Community Solar	Agilitas Energy, Inc.	Fresno, CA	17 GWh	May 2024	Dec 2025	Solar
Fresno Sunnyside High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2020	Dec 2025	Solar
Clovis North High School	Tesla Inc.	Fresno, CA	2 GWh	Nov 2017	Dec 2025	Solar
SCCCD - Fresno Community College	Forefront Power, LLC	Fresno, CA	4 GWh	Sep 2018	Nov 2025	Solar
La Joya Del Sol	CVI CleanCapital Solar 1 LLC	Fresno, CA	806 MWh	Nov 2012	Dec 2025	Solar
Saint Agnes Medical Center	Saint Agnes Medical Center	Fresno, CA	32 GWh	Apr 2001	Jul 2026	Natural Gas
Malaga Power LLC	CalPeak Power, LLC	Fresno, CA	6 GWh	Aug 2005	Jul 2026	Natural Gas
CSU Fresno Solar Project	MMA Fresno Power LP	Fresno, CA	1 GWh	Nov 2007	Dec 2025	Solar
RE Adams East, LLC	Onward Energy	Fresno, CA	41 GWh	Nov 2014	Dec 2025	Solar
Gap Pacific Distribution Center	MN8 Energy LLC	Fresno, CA	5 GWh	Sep 2008	Dec 2025	Solar
Friant Hydro Facility	Friant Power Authority	Friant, CA	73 GWh	Mar 1985	Dec 2025	Water
CSUF Trigeneration	California State University at Fullerton	Fullerton, CA	34 GWh	Sep 2010	Jul 2026	Natural Gas : 80.2% Solar : 19.8%
CSUF Nutwood Solar	MN8 Energy LLC	Fullerton, CA	3 GWh	Nov 2016	Dec 2025	Solar
CSUF State College	MN8 Energy LLC	Fullerton, CA	2 GWh	Nov 2016	Dec 2025	Solar
AT&T - Gardena	Bloom Energy	Gardena, CA	8 GWh	May 2013	Dec 2025	Natural Gas
Gilroy Power Plant	Calpine Gilroy Cogen LP	Gilroy, CA	21 GWh	Sep 1987	Dec 2025	Natural Gas
Gilroy Peaking Energy Center	Calpine Gilroy Cogen LP	Gilroy, CA	31 GWh	Oct 2001	Dec 2025	Natural Gas
Ellwood	Ellwood Power, LLC	Goleta, CA	305 MWh	Jul 1974	Dec 2025	Natural Gas
Santa Barbara ReSource Center	County of Santa Barbara - (CA)	Goleta, CA	9 GWh	May 2021	Dec 2025	Other Biomass Gas
Foundation Mann Packing	Foundation CA Fund IX Manager, LLC	Gonzales, CA	6 GWh	Mar 2019	Dec 2025	Wind
Taylor Farms	Foundation HA Energy Generation, LLC	Gonzales, CA	4 GWh	Oct 2014	Dec 2025	Wind
Ameresco Johnson Canyon	Ameresco Johnson Canyon LLC	Gonzales, CA	10 GWh	Apr 2013	Dec 2025	Landfill Gas
W E Warne	California Dept. of Water Resources	Gorman, CA	211 GWh	Oct 1982	Dec 2025	Water
Narrows PH	Yuba County Water Agency - (CA)	Grass Valley, CA	73 GWh	Nov 1942	Dec 2025	Water
Foundation Scheid Vineyards	Foundation CA Fund VIII Manager, LLC	Greenfield, CA	4 GWh	Aug 2017	Dec 2025	Wind
Gridley Main Two	Altus Power America Management, LLC	Gridley, CA	4 GWh	Mar 2013	Dec 2025	Solar
Gridley Main	Altus Power America Management, LLC	Gridley, CA	1 GWh	Feb 2013	Dec 2025	Solar
Dion R Holm	City & County of San Francisco - (CA)	Groveland, CA	552 GWh	Jul 1960	Jul 2026	Water
R C Kirkwood	City & County of San Francisco - (CA)	Groveland, CA	478 GWh	Jan 1967	Jul 2026	Water
Quinto Solar PV Project	Arevon Energy, Inc.	Gustine, CA	243 GWh	Oct 2015	Dec 2025	Solar
Ameresco Ox Mountain	AMERESCO Ox Mountain Energy LLC	Half Moon Bay, CA	83 GWh	Nov 2008	Jul 2026	Landfill Gas
Hanford Energy Park Peaker	MRP San Joaquin Energy LLC.	Hanford, CA	2 GWh	Aug 2001	Jul 2026	Natural Gas
Hanford 1 and 2	Arevon Energy, Inc.	Hanford, CA	5 GWh	Jul 2014	Dec 2025	Solar
Guernsey Solar Station	Pacific Gas & Electric Co.	Hanford, CA	22 GWh	Jul 2013	Dec 2025	Solar
Danell Bros Inc	Renewable Solar, Inc	Hanford, CA	6 GWh	Aug 2021	Dec 2025	Solar
Verwey-Hanford Dairy Digester #2	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
Dixie Creek Dairy Solar	Bravo REC Management LLC	Hanford, CA	6 GWh	Jun 2024	Dec 2025	Solar
Verwey-Hanford Dairy Digester #3	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
River Ranch Dairy	Renewable Solar, Inc	Hanford, CA	995 MWh	May 2024	Dec 2025	Solar
Lone Oak	Bravo REC Management LLC	Hanford, CA	6 GWh	Feb 2023	Dec 2025	Solar
Canal Energy S23, LLC	Canal Energy S23, LLC	Hanford, CA	10 GWh	Nov 2021	Dec 2025	Solar
Lakeside Pipeline	Maas Energy Works	Hanford, CA	8 GWh	Jun 2023	Dec 2025	Solar
Still Water Power	Still Water Power LLC	Hanford, CA	1 GWh	Apr 2020	Dec 2025	Other Biomass Gas
Dover Dairy	Renewable Solar, Inc	Hanford, CA	2 GWh	Apr 2022	Dec 2025	Solar
Verwey-Hanford Dairy Digester #1	AlsoEnergy	Hanford, CA	3 GWh	Sep 2016	Dec 2025	Other Biomass Gas
Kaiser - Harbor City	Bloom Energy	Harbor City, CA	17 GWh	Nov 2019	Dec 2025	Natural Gas
Sun Streams 2	Sun Streams 2, LLC	Hassayampa, AZ	303 GWh	May 2021	Jul 2026	Solar
Bidwell Ditch Project	Mega Renewables	Hat Creek, CA	12 GWh	Feb 1987	Dec 2025	Water
AT&T - Hawthorne	Bloom Energy	Hawthorne, CA	8 GWh	Sep 2016	Dec 2025	Natural Gas

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#25	Arizona Public Service Company	25.8 TWh	102
#55	Arlington Valley, LLC	3.2 TWh	1
#38	Balancing Authority of Northern California	13.9 TWh	91
#49	Imperial Irrigation District	6.2 TWh	66
#29	Los Angeles Department of Water and Power	19.3 TWh	132
#22	Nevada Power Company	38.6 TWh	143
#51	PUD No. 1 of Douglas County	4.4 TWh	5
#19	Salt River Project Agricultural Improvement and Power District	60.5 TWh	51
#57	Turlock Irrigation District	1.9 TWh	11
#39	Western Area Power Administration - Desert Southwest Region	10.6 TWh	36

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578
#15	ISO New England	112.2 TWh	1,667
#16	Bonneville Power Administration	91.1 TWh	170