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
Morelos del Sol	Southern Power Co	Lost Hills, CA	31 GWh	Oct 2015	Dec 2025	Solar
EQX011 Duane Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	31 GWh	Aug 2018	Dec 2025	Natural Gas
Apple Campus 2 Fuel Cell	Apple, Inc	Cupertino, CA	31 GWh	May 2017	Dec 2025	Landfill Gas
Ameresco Forward	Ameresco Forward, LLC	Manteca, CA	32 GWh	Jan 2014	Dec 2025	Landfill Gas
WWTP Power Generation Station	East Bay Municipal Util Dist - (CA)	Oakland, CA	32 GWh	Jul 1985	Jul 2026	Other Biomass Gas : 98.9% Distillate Fuel Oil : 1.1%
Calabasas Gas to Energy Facility	Los Angeles County Sanitation	Agoura, CA	32 GWh	Jun 2010	Dec 2025	Landfill Gas
Sand Drag LLC	Avenal Solar Holdings LLC	Avenal, CA	32 GWh	Jul 2011	Dec 2025	Solar
Saint Agnes Medical Center	Saint Agnes Medical Center	Fresno, CA	32 GWh	Apr 2001	Jul 2026	Natural Gas
Isabella Hydro Project	Isabella Partners	Lake Isabella, CA	32 GWh	Nov 1990	Dec 2025	Water
SEPV 8	Deriva Energy	Twentynine Palms, CA	32 GWh	May 2013	Dec 2025	Solar
Pastoria Solar	Pastoria Solar Energy Company, LLC	Lebec, CA	32 GWh	-	Jul 2026	Solar
Hat Creek 1	Pacific Gas & Electric Co.	Burney, CA	32 GWh	Jul 1921	Dec 2025	Water
Tropico Solar PV Plant	Arevon Energy, Inc.	Delano, CA	32 GWh	Aug 2016	Dec 2025	Solar
Adera Solar	AES Distributed Energy	Chowchilla, CA	33 GWh	Nov 2015	Dec 2025	Solar
Ameresco Vasco Road	Ameresco Vasco Road, LLC	Livermore, CA	33 GWh	Feb 2013	Dec 2025	Landfill Gas
Victory Garden (Tehachapi)	Wind Stream Operations LLC	Tehachapi, CA	33 GWh	Nov 1981	Dec 2024	Wind
Terminus Hydroelectric Project	Eagle Creek Renewable Energy, LLC	Lemon Cove, CA	33 GWh	Feb 1990	Dec 2025	Water
High Sierra Cogeneration Plant	Plumas Sierra Rural Electric Coop	Susanville, CA	33 GWh	Jan 2010	Dec 2025	Natural Gas
Sun City Project LLC	Avenal Solar Holdings LLC	Avenal, CA	33 GWh	Jul 2011	Dec 2025	Solar
University of California Santa Cruz	University of California Santa Cruz	Santa Cruz, CA	34 GWh	Aug 2013	Dec 2025	Natural Gas : 91.4% Solar : 8.6%
CSUF Trigeneration	California State University at Fullerton	Fullerton, CA	34 GWh	Sep 2010	Jul 2026	Natural Gas : 80.2% Solar : 19.8%
Welport Lease Project	Sentinel Peak Resources California, LLC	McKittrick, CA	34 GWh	Feb 1990	Dec 2025	Natural Gas
Dominguez Plant	Eco Services Corp.	Long Beach, CA	34 GWh	Jul 1976	Dec 2025	Waste Heat
Atwell Island	SPS Atwell Island LLC	Alpaugh, CA	34 GWh	Feb 2013	Dec 2025	Solar
Redcrest Solar Farm	AES Distributed Energy	Edison, CA	34 GWh	Sep 2015	Dec 2025	Solar
Keysight - Santa Rosa	Bloom Energy	Santa Rosa, CA	34 GWh	Aug 2018	Dec 2025	Natural Gas
RB Inyokern Solar WDAT 1281 (CSG)	Dimension Energy LLC	Ridgecrest, CA	34 GWh	Nov 2024	Dec 2025	Solar
San Jose Cogeneration	San Jose State University Fclts Dev &Ops	San Jose, CA	35 GWh	Nov 1984	Jul 2026	Natural Gas
Coronal Lost Hills	Arevon Energy, Inc.	Lost Hills, CA	35 GWh	Apr 2015	Dec 2025	Solar
Feather River Energy Center	Calpine Corp-Yuba City	Yuba City, CA	35 GWh	Dec 2002	Dec 2025	Natural Gas
RE Kent South, LLC	Onward Energy	Lemoore, CA	36 GWh	Nov 2014	Dec 2025	Solar
Bishop Creek 4	Southern California Edison Co	Bishop, CA	36 GWh	Aug 1905	Dec 2025	Water
Kern Oil & Refining Co	Kern Oil & Refining Co	Bakersfield, CA	36 GWh	Sep 2002	Jul 2026	Natural Gas
White River Solar	RWE Clean Energy	Alpaugh, CA	36 GWh	Jun 2013	Dec 2025	Solar
Mission College Blvd. Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	36 GWh	Nov 2017	Dec 2025	Natural Gas
Adobe Solar	Southern Power Co	Arvin, CA	36 GWh	Apr 2014	Dec 2025	Solar
C&H Sugar Plant	C&H Sugar Company Inc	Crockett, CA	36 GWh	Sep 1957	Jul 2026	Purchased Steam
Angela Solar Project	Angiola East LLC	Alpaugh, CA	37 GWh	-	Jul 2026	Solar
Rollins	Nevada Irrigation District	Colfax, CA	37 GWh	Jul 1980	Dec 2025	Water
Kaiser - LA	Bloom Energy	Los Angeles, CA	37 GWh	May 2020	Dec 2025	Natural Gas
Sunray 3	Sunray Energy 3 LLC	Daggett, CA	37 GWh	Nov 1985	Dec 2025	Solar
RE Old River One, LLC	Onward Energy	Bakersfield, CA	38 GWh	Nov 2014	Dec 2025	Solar
Bear Mountain Limited	WCAC Operating Company	Bakersfield, CA	38 GWh	Mar 1995	Jul 2026	Natural Gas
Kingbird A Solar LLC	Arevon Energy, Inc.	Rosamond, CA	38 GWh	Mar 2016	Dec 2025	Solar
CED Ducor 3	RWE Clean Energy	Ducor, CA	38 GWh	Nov 2016	Dec 2025	Solar
North Lancaster Ranch	AES Distributed Energy	Lancaster, CA	39 GWh	Nov 2016	Dec 2025	Solar
Wildwood Solar II	Deriva Energy	Wasco, CA	39 GWh	Dec 2016	Dec 2025	Solar
Equinix Caspian Dr. Fuel Cell	2016 ESA Project Company, LLC	Sunnyvale, CA	39 GWh	Nov 2017	Dec 2025	Natural Gas
Altamont Gas Recovery	WM Renewable Energy LLC	Livermore, CA	39 GWh	Feb 1969	Dec 2025	Landfill Gas
Solar Blythe LLC	NRG Solar Blythe	Blythe, CA	39 GWh	Nov 2009	Dec 2025	Solar
Coalinga 25D Cogen	Chevron USA Inc	Coalinga, CA	39 GWh	Sep 1986	Dec 2025	Natural Gas
Central Antelope Dry Ranch C	AES Distributed Energy	Lancaster, CA	39 GWh	Apr 2016	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
Blackwell Solar Park	RWE Clean Energy	Lost Hills, CA	39 GWh	Dec 2018	Dec 2025	Solar
Westlands Solar PV Farm	Boralex US Operations LLC	Huron, CA	39 GWh	Jan 2014	Dec 2025	Solar
Signal Hill West Unit	Signal Hill Petroleum, Inc	Signal Hill, CA	39 GWh	Jun 2004	Jul 2026	Other Gas
Vandenberg Solar Project	MN8 Energy LLC	Vandenberg Airforce B, CA	39 GWh	Nov 2017	Dec 2025	Solar
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%
Antelope Expansion 3A	AES Distributed Energy	Lancaster, CA	40 GWh	May 2021	Dec 2025	Solar
MM West Covina	MM West Covina Energy LLC	West Covina, CA	40 GWh	May 1993	Dec 2025	Landfill Gas : 99.7%
Algonquin SKIC20 Solar LLC	Algonquin Power Co	Taft, CA	41 GWh	Apr 2015	Dec 2025	Solar
Bayshore Solar C, LLC	AES Distributed Energy	Lancaster, CA	41 GWh	Nov 2017	Dec 2025	Solar
RE Adams East, LLC	Onward Energy	Fresno, CA	41 GWh	Nov 2014	Dec 2025	Solar
CID Solar, LLC	Onward Energy	Corcoran, CA	41 GWh	Nov 2014	Dec 2025	Solar
Solar Blythe 2	NRG Solar Blythe II LLC	Blythe, CA	41 GWh	Mar 2017	Dec 2025	Solar
Monticello Dam	Solano Irrigation District	Winters, CA	41 GWh	May 1983	Dec 2025	Water
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%
Little Bear 4	Little Bear Solar 4, LLC (Longroad)	Mendota, CA	41 GWh	Nov 2020	Jul 2026	Solar
Shafter Solar LLC	Shafter Solar LLC	Bakersfield, CA	41 GWh	Apr 2015	Dec 2025	Solar
Sierra Solar Greenworks	AES Distributed Energy	Lancaster, CA	41 GWh	Oct 2015	Dec 2025	Solar
Wonderful Lost Hills	Wonderful Renewable Energy, LLC.	Lost Hills, CA	41 GWh	Aug 2021	Dec 2025	Solar
RE Columbia Two, LLC	Onward Energy	Mojave, CA	41 GWh	Nov 2014	Dec 2025	Solar
Bayshore Solar B, LLC	AES Distributed Energy	Lancaster, CA	42 GWh	Nov 2017	Dec 2025	Solar
Lockhart Solar PV IV, LLC	Terra-Gen Operating Co-Solar	Hinkley, CA	42 GWh	-	Jul 2026	Solar
Coalinga Cogeneration Facility	Aera Energy LLC-Coalinga	Coalinga, CA	42 GWh	May 1988	Dec 2025	Natural Gas
TPC Windfarms LLC	Terra-Gen Operating Co-Wind	Mojave, CA	42 GWh	Nov 1986	Dec 2025	Wind
French Meadows	Placer County Water Agency - (CA)	Foresthill, CA	43 GWh	Sep 1966	Dec 2025	Water
Sierra Pacific Sonora	Sierra Pacific Industries	Standard, CA	43 GWh	Jan 2001	Dec 2025	Wood/Wood Waste Solids
Kettleman Solar -Centaurus	Boralex US Operations LLC	Kettleman City, CA	43 GWh	Jun 2015	Dec 2025	Solar
Canyon Power Plant	City of Anaheim - (CA)	Anaheim, CA	43 GWh	Jul 2011	Jul 2026	Natural Gas
Western Antelope Blue Sky Ranch A	AES Distributed Energy	Lancaster, CA	43 GWh	Oct 2014	Dec 2025	Solar
Grizzly	City of Santa Clara - (CA)	N/A, CA	43 GWh	Oct 1993	Dec 2025	Water
Southeast Kern River Cogen	Chevron USA Inc	Bakersfield, CA	43 GWh	Jan 1989	Jul 2026	Natural Gas
Mammoth G1	Ormat Nevada Inc	Mammoth lakes, CA	44 GWh	Nov 1984	Dec 2025	Geothermal
Bayshore Solar A, LLC	AES Distributed Energy	Lancaster, CA	44 GWh	Nov 2017	Dec 2025	Solar
RE Victor Phelan Solar One LLC	MN8 Energy LLC	Adelanto, CA	45 GWh	Nov 2013	Dec 2025	Solar
Taft 26C Cogen	Chevron USA Inc	Taft, CA	46 GWh	Jun 1982	Jul 2026	Natural Gas
AP North Lake I, LP	AP North Lake I, LP	Hemet, CA	46 GWh	Jul 2015	Dec 2025	Solar
Hat Creek 2	Pacific Gas & Electric Co.	Burney, CA	46 GWh	Aug 1921	Dec 2025	Water
Mojave Siphon	California Dept. of Water Resources	Hesperia, CA	46 GWh	Jul 1996	Dec 2025	Water
Jacumba Solar Farm	Invenergy Services LLC	Jacumba, CA	46 GWh	Jun 2017	Dec 2025	Solar
Nicolis Solar PV Plant	Arevon Energy, Inc.	Delano, CA	46 GWh	Aug 2016	Dec 2025	Solar
Antelope Expansion 1B	AES Distributed Energy	Lancaster, CA	47 GWh	Oct 2022	Dec 2025	Solar
Corcoran Solar 2	RWE Clean Energy	Corcoran, CA	47 GWh	Apr 2015	Dec 2025	Solar
Pio Pico Energy Center	Pio Pico Energy Center LLC	San Diego, CA	47 GWh	Oct 2016	Dec 2025	Natural Gas
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%
Hayworth Solar	AES Distributed Energy	Edison, CA	47 GWh	Nov 2015	Dec 2025	Solar
RE Gaskell West 4 LLC	RE Gaskell West LLC	Rosamond, CA	48 GWh	Apr 2023	Dec 2025	Solar
Tehachapi Wind Resource II	CalWind Resources Inc	Tehachapi, CA	48 GWh	Dec 1996	Dec 2025	Wind
Paulsell	Crow Creek Solar, LLC	Crows Landing, CA	48 GWh	May 2024	Jul 2026	Solar

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