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
Central CA Fuel Cell 1, LLC	Cordia	Tulare, CA	13 GWh	Apr 2018	Dec 2025	Natural Gas
Tulare BioMAT Fuel Cell	Central CA Fuel Cell 2, LLC	Tulare, CA	6 GWh	Nov 2019	Dec 2025	Other Biomass Gas : 77.3% Natural Gas : 22.7%
Visalia CSG LLC	Dimension Energy LLC	Tulare, CA	8 GWh	Feb 2024	Dec 2025	Solar
TWC	Bravo REC Management LLC	Tulare, CA	2 GWh	Jul 2024	Dec 2025	Solar
Tulare CSG LLC	Dimension Energy LLC	Tulare, CA	6 GWh	Sep 2024	Dec 2025	Solar
Trona Solar III	Trona Solar III LLC	Trona, CA	5 GWh	Mar 2023	Dec 2025	Solar
Argus Cogen Plant	Searles Valley Minerals Operations Inc.	Trona, CA	154 GWh	Nov 1947	Jul 2026	Bituminous Coal : 71.3% Natural Gas : 28.7%
Tranquillity ID	Tranquillity Solar 1, LLC	Tranquillity, CA	2 GWh	Feb 2018	Dec 2025	Solar
IPC 25 Solar	Prologis Logistics Services Incorporated	Tracy, CA	5 GWh	Jun 2024	Dec 2025	Solar
Prologis L.P	Powerflex	Tracy, CA	6 GWh	Jul 2018	Dec 2025	Solar
Tracy 210	Costco Wholesale	Tracy, CA	21 GWh	Feb 2019	Dec 2025	Natural Gas
Tracy 18 - SLCVA418	Prologis Logistics Services Incorporated	Tracy, CA	182 MWh	Sep 2025	Dec 2025	Solar
Medline Ind. Phase 2 Tracy	Powerflex	Tracy, CA	2 GWh	Mar 2018	Aug 2025	Solar
Tracy Combined Cycle Power Plant	MRP San Joaquin Energy LLC.	Tracy, CA	669 GWh	Mar 2003	Jul 2026	Natural Gas
Foundation ST	Foundation HA Energy Generation, LLC	Tracy, CA	2 GWh	May 2011	Dec 2025	Wind
Torrance Refining Company, LLC	Torrance Refining Company, LLC	Torrance, CA	68 GWh	Aug 1983	Jul 2026	Other Gas : 56.6% Waste Heat : 43.4%
Mesquite Solar 1	RWE Clean Energy	Tonopah, AZ	392 GWh	Oct 2011	Dec 2025	Solar
Mesquite Solar 4, LLC	RWE Clean Energy	Tonopah, AZ	140 GWh	Dec 2023	Jul 2026	Solar
Mesquite Solar 3, LLC	RWE Clean Energy	Tonopah, AZ	437 GWh	Nov 2016	Jul 2026	Solar
Mesquite Solar 2, LLC	RWE Clean Energy	Tonopah, AZ	248 GWh	Nov 2016	Jul 2026	Solar
Blue Moon Farms	Bravo REC Management LLC	Tipton, CA	2 GWh	Jul 2024	Dec 2025	Solar
Tipton 1 - (CA)	CleanCapital Holdings	Tipton, CA	8 GWh	Nov 2024	Dec 2025	Solar
Tipton 2 - (CA)	CleanCapital Holdings	Tipton, CA	3 GWh	Nov 2024	Dec 2025	Solar
Deer Creek Hybrid	Deer Creek Solar I, LLC	Terra Bella, CA	17 GWh	-	Jul 2026	Solar
Vintner Solar	Ecos Energy LLC	Templeton, CA	4 GWh	Mar 2014	Dec 2025	Solar
Tehachapi Wind Resource II	CalWind Resources Inc	Tehachapi, CA	48 GWh	Dec 1996	Dec 2025	Wind
85 A	Wind Wall 1 LLC	Tehachapi, CA	71 GWh	Dec 1984	Dec 2025	Wind
85 B	Wind Wall 1 LLC	Tehachapi, CA	93 GWh	Dec 1984	Dec 2025	Wind
Windstar 1	Nextera Energy Resources	Tehachapi, CA	255 GWh	Jan 2012	Dec 2025	Wind
Sky River Wind Energy Center	Sky River Wind LLC	Tehachapi, CA	211 GWh	Jan 1991	Dec 2025	Wind
Victory Garden (Tehachapi)	Wind Stream Operations LLC	Tehachapi, CA	33 GWh	Nov 1981	Dec 2024	Wind
Helzel & Schwarzhoff 86	Wind Stream Operations LLC	Tehachapi, CA	3 GWh	Nov 1986	Dec 2024	Wind
ZCO	Wind Stream Operations LLC	Tehachapi, CA	1 GWh	Nov 1985	Dec 2024	Wind
Coram Energy LLC (ECT)	Nextera Energy Resources	Tehachapi, CA	22 GWh	Apr 2005	Dec 2025	Wind
Tehachapi Wind Resource I	CalWind Resources Inc	Tehachapi, CA	12 GWh	Nov 1984	Dec 2025	Wind
Coram Energy LLC	Nextera Energy Resources	Tehachapi, CA	9 GWh	Dec 2004	Dec 2025	Wind
Coram Energy LLC (4.5MW)	Nextera Energy Resources	Tehachapi, CA	9 GWh	Nov 1985	Dec 2025	Wind
CA-DGS-California Correctional Inst	Forefront Power, LLC	Tehachapi, CA	4 GWh	Mar 2024	Dec 2025	Solar
Point Wind	Terra-Gen Operating Co-Wind	Tehachapi, CA	218 GWh	Feb 2021	Jul 2026	Wind
Cantua Solar Station	Pacific Gas & Electric Co.	TBD, CA	23 GWh	May 2012	Dec 2025	Solar
Giffen	Pacific Gas & Electric Co.	TBD, CA	12 GWh	May 2012	Dec 2025	Solar
Algonquin SKIC20 Solar LLC	Algonquin Power Co	Taft, CA	41 GWh	Apr 2015	Dec 2025	Solar
Berry Cogen	Berry Petroleum Co	Taft, CA	9 GWh	Nov 1986	May 2026	Natural Gas
Taft 26C Cogen	Chevron USA Inc	Taft, CA	46 GWh	Jun 1982	Jul 2026	Natural Gas
Algonquin SKIC 10 Solar, LLC	Algonquin Power Co	Taft, CA	16 GWh	Dec 2016	Dec 2025	Solar
Northern Orchard Solar PV, LLC	RWE Clean Energy	Taft, CA	416 GWh	Jun 2025	Jul 2026	Solar
Eagle Creek	ZGlobal Inc	Taft, CA	8 GWh	Nov 2019	Dec 2025	Solar
Maricopa West Solar PV, LLC	Onward Energy	Taft, CA	50 GWh	Nov 2015	Dec 2025	Solar
Sunshine Gas Producers	Sunshine Gas Producers LLC	Sylmar, CA	132 GWh	Jul 2014	Jul 2026	Landfill Gas
High Sierra Cogeneration Plant	Plumas Sierra Rural Electric Coop	Susanville, CA	33 GWh	Jan 2010	Dec 2025	Natural Gas
Juniper Networks Sunnyvale	Bloom Energy	Sunnyvale, CA	4 GWh	Nov 2012	Dec 2024	Natural 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%
Google Moffett Park Solar Project	Google, Inc.	Sunnyvale, CA	3 GWh	Feb 2021	Dec 2025	Solar
Equinix Caspian Dr. Fuel Cell	2016 ESA Project Company, LLC	Sunnyvale, CA	39 GWh	Nov 2017	Dec 2025	Natural Gas
JSR000 N Mathilda Fuel Cell	2016 ESA Project Company, LLC	Sunnyvale, CA	9 GWh	May 2019	Dec 2025	Natural Gas
Goose Haven Energy Center	Goose Haven Energy Center	Suisun, CA	4 GWh	Dec 2002	Dec 2025	Natural Gas
Creed Energy Center	Creed Energy Center LLC	Suisun, CA	3 GWh	Dec 2002	Nov 2025	Natural Gas
Lambie Energy Center	Gilroy Energy Center LLC	Suisun, CA	5 GWh	Dec 2002	Dec 2025	Natural Gas
Potrero Hills Energy Producers	Potrero Hills Energy Producers, LLC	Suisun City, CA	56 GWh	Mar 2016	Dec 2025	Landfill Gas
Slate Hybrid	MN8 Energy LLC	Stratford, CA	690 GWh	Oct 2021	Jul 2026	Solar
Bucks Creek	Pacific Gas & Electric Co.	Storrie, CA	192 GWh	Feb 1928	Dec 2025	Water
Cresta	Pacific Gas & Electric Co.	Storrie, CA	342 GWh	Oct 1949	Dec 2025	Water
Rock Creek	Pacific Gas & Electric Co.	Storrie, CA	438 GWh	Feb 1950	Jul 2026	Water
Poe	Pacific Gas & Electric Co.	Storrie, CA	197 GWh	Sep 1958	Jul 2026	Water
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%
Stockton Biomass	DTE Stockton LLC	Stockton, CA	355 GWh	Nov 1987	Dec 2025	Wood/Wood Waste Solids : 99.6%
Niagara Bottling Stockton	ClearGen LLC	Stockton, CA	2 GWh	Dec 2017	Dec 2025	Solar
University of the Pacific	The Greater Light USA LLC	Stockton, CA	6 GWh	Apr 2022	Dec 2025	Solar
Donaghy-Stockton	Donaghy Sales Inc.	Stockton, CA	2 GWh	Sep 2021	Dec 2025	Solar
Amazon - Stockton - Roof (SCK1) - (CA)	Forefront Power, LLC	Stockton, CA	4 GWh	Feb 2023	Dec 2025	Solar
Stanton Energy Reliability Center Hybrid	Wellhead Services, Inc	Stanton, CA	2 GWh	Jun 2020	Jul 2026	Natural Gas
Barre Peaker	Southern California Edison Co	Stanton, CA	5 GWh	Aug 2007	Nov 2025	Natural Gas
Sand Bar Power Plant	Tri-Dam Power Authority	Stanislaus Ntl. Fores, CA	83 GWh	Apr 1986	Dec 2025	Water
Stanford Campus Solar	MN8 Energy LLC	Stanford, CA	6 GWh	Feb 2017	Dec 2025	Solar
Sierra Pacific Sonora	Sierra Pacific Industries	Standard, CA	43 GWh	Jan 2001	Dec 2025	Wood/Wood Waste Solids
Phoenix	Pacific Gas & Electric Co.	Sonora, CA	5 GWh	Jan 1940	Dec 2025	Water
City of Soledad Water Reclamation	Foundation HA Energy Generation, LLC	Soledad, CA	4 GWh	Oct 2014	Dec 2025	Wind
CA-DGS RFP-Salinas Valley State Prison	Forefront Power, LLC	Soledad, CA	8 GWh	Oct 2023	Dec 2025	Solar
Foundation Dole Fresh Vegetables	Foundation CA Fund X Manager LLC	Soledad, CA	18 GWh	Jul 2022	Dec 2025	Wind
Foundation SaIinas Valley State Prison	Foundation CA Fund IX Manager, LLC	Soledad, CA	5 GWh	Jul 2018	Dec 2025	Wind
Foundation California Training Facility	Foundation CA Fund IX Manager, LLC	Soledad, CA	6 GWh	Jul 2018	Dec 2025	Wind
CA-DGS- RFP-Correctional Training Fac	Forefront Power, LLC	Soledad, CA	4 GWh	Feb 2024	Dec 2025	Solar
McSwain	Merced Irrigation District	Snelling, CA	27 GWh	Jun 1967	Oct 2025	Water
Parker	Merced Irrigation District	Snelling, CA	6 GWh	Mar 1982	Jun 2025	Water
Exchequer	Merced Irrigation District	Snelling, CA	246 GWh	Jun 1967	Dec 2025	Water
Merced Falls	Merced Irrigation District	Snelling, CA	9 GWh	Jun 1930	Sep 2025	Water
Madelyn Solar, LLC	CD US Solar PO 3, LLC	Silver Lake, CA	2 GWh	Nov 2014	Dec 2025	Solar
Rudy Solar, LLC	CD US Solar PO 3, LLC	Silver Lake, CA	3 GWh	Nov 2014	Dec 2025	Solar
Mitchell Solar, LLC	CD US Solar PO 3, LLC	Silver Lake, CA	4 GWh	Nov 2014	Dec 2025	Solar
Signal Hill West Unit	Signal Hill Petroleum, Inc	Signal Hill, CA	39 GWh	Jun 2004	Jul 2026	Other Gas
Haypress	EIF Haypress LLC	Sierra City, CA	17 GWh	Nov 1988	Jun 2025	Water
Bear Creek (CA)	Central Rivers Power US, LLC	Shingletown, CA	7 GWh	Dec 1989	Dec 2025	Water
Deer Creek 2	Altus Power America Management, LLC	Shingle Springs, CA	3 GWh	Nov 2021	Dec 2025	Solar
J S Eastwood	Southern California Edison Co	Shaver Lake, CA	100 GWh	Nov 1987	Jul 2026	Water
CA Flats Solar 150, LLC	Arevon Energy, Inc.	Shandon, CA	282 GWh	Jan 2019	Jul 2026	Solar
CA Flats Solar 130, LLC	California Flats Solar 130, LLC	Shandon, CA	258 GWh	Oct 2017	Jul 2026	Solar
Highway 43 1887-WD	Standard Solar	Shafter, CA	3 GWh	Oct 2024	Dec 2025	Solar
North Kern 1	Madison Energy Investments LLC	Shafter, CA	7 GWh	May 2023	Dec 2025	Solar
Sun Pacific - Lerdo	JKB Energy	Shafter, CA	6 GWh	Sep 2020	Dec 2025	Solar
Broadway 4 - Target Shafter	MN8 Energy LLC	Shafter, CA	3 GWh	Aug 2018	Dec 2025	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