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
Los Esteros Critical Energy Center	Los Esteros Critical Energy Facility LLC	San Jose, CA	180 GWh	Jan 2003	Jul 2026	Natural Gas
San Gabriel Hydro Project	Los Angeles County-San Gabriel	Azusa, CA	2 GWh	Nov 1987	Apr 2025	Water
Total Energy Facilities	Los Angeles County Sanitation	Carson, CA	157 GWh	Dec 1985	Dec 2025	Other Biomass Gas : 94.7% Natural Gas : 5.3%
Calabasas Gas to Energy Facility	Los Angeles County Sanitation	Agoura, CA	32 GWh	Jun 2010	Dec 2025	Landfill Gas
Puente Hills Energy Recovery	Los Angeles County Sanitation	Whittier, CA	145 GWh	Sep 1986	Jul 2026	Landfill Gas
Toyota Long Beach Trigen	Long Beach Trigen, LLC	Long Beach, CA	13 GWh	Oct 2023	Dec 2025	Other Biomass Gas
Long Beach Generation	Long Beach Generation LLC	Long Beach, CA	6 GWh	Nov 1976	Dec 2025	Natural Gas
Lone Valley Solar Park II LLC	Lone Valley Solar Park II LLC	Lucerne Valley, CA	53 GWh	Nov 2014	Dec 2025	Solar
Lone Valley Solar Park I LLC	Lone Valley Solar Park I LLC	Lucerne Valley, CA	24 GWh	Nov 2014	Dec 2025	Solar
Loma Linda University Cogen	Loma Linda University	Loma Linda, CA	61 GWh	Jan 1980	Jul 2026	Natural Gas
Lockheed Martin Palmdale Solar PV	Lockheed Martin Corporation	Palmdale, CA	53 GWh	Apr 2016	Dec 2025	Solar
Little Bear 5	Little Bear Solar 5, LLC (Longroad)	Mendota, CA	106 GWh	Nov 2020	Jul 2026	Solar
Little Bear 4	Little Bear Solar 4, LLC (Longroad)	Mendota, CA	41 GWh	Nov 2020	Jul 2026	Solar
Little Bear 3	Little Bear Solar 3, LLC (Longroad)	Mendota, CA	20 GWh	Nov 2020	Dec 2025	Solar
Little Bear Solar 1, LLC	Little Bear Solar 1, LLC (Longroad)	Mendota, CA	71 GWh	Nov 2020	Jul 2026	Solar
Lindberg FIeld Solar	Lindberg Field Solar I LLC	San Diego, CA	3 GWh	Aug 2015	Dec 2025	Solar
Lindberg Field Solar 2	Lindberg Field Solar 2, LLC	San Diego, CA	2 GWh	Jan 2017	Dec 2025	Solar
Lincoln WWTF Hybrid	Lincoln Solar Star, LLC	Lincoln, CA	6 GWh	Jul 2021	Dec 2025	Solar
Lemoore West	Leprino Foods	Lemoore, CA	17 GWh	Nov 2022	Dec 2025	Solar
Chaparral Springs	Leeward Asset Management, LLC	Rosamond, CA	399 GWh	Mar 2025	Jul 2026	Solar
Rabbitbrush Solar, LLC	Leeward Asset Management, LLC	Rosamond, CA	250 GWh	Sep 2022	Jul 2026	Solar
White Wing Solar	Leeward Asset Management, LLC	Yuma, AZ	445 GWh	Sep 2024	Jul 2026	Solar
Buena Vista Energy LLC	Leeward Asset Management, LLC	Byron, CA	96 GWh	Nov 2006	Dec 2025	Wind
Kumeyaay Wind	Leeward Asset Management, LLC	Campo, CA	131 GWh	Nov 2005	Dec 2025	Wind
Lavio Solar	Lavio Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2025	Solar
L-8 Solar Project	L-8 Solar Project LLC	Palmdale, CA	2 GWh	Apr 2012	Dec 2025	Solar
Kyocera International Inc.(San Diego)	Kyocera International, Inc	San Diego, CA	14 GWh	Aug 2012	Dec 2025	Natural Gas
Vacaville Hospital	KP Vacaville Solar, LLC	Vacaville, CA	2 GWh	Nov 2019	Dec 2025	Solar
KP Ontario Vineyard Solar	KP Ontario Vineyard O.P. Surgicenter B Solar LLC	Ontario, CA	3 GWh	Nov 2024	Dec 2025	Solar
Pine Flat	Kings River Conservation Dist	Piedra, CA	333 GWh	Dec 1983	Jul 2026	Water
Kingsburg Cogen	KES Kingsburg LP	Kingsburg, CA	8 GWh	Nov 1990	Sep 2025	Natural Gas
Kern River Cogeneration	Kern River Cogeneration Co	Bakersfield, CA	105 GWh	Jun 1985	Jul 2026	Natural Gas
Kern Oil & Refining Co	Kern Oil & Refining Co	Bakersfield, CA	36 GWh	Sep 2002	Jul 2026	Natural Gas
Improvement Dst No. 4	Kern County Water Agency - (CA)	Bakersfield, CA	12 MWh	Dec 2008	Dec 2024	Solar
Kaweah Delta District Hospital	Kaweah Delta Hospital	Visalia, CA	22 GWh	Sep 2008	Jul 2026	Natural Gas
ISH Solar Hospital SDMC	Kaiser Permanente	San Diego, CA	1 GWh	Nov 2011	Dec 2025	Solar
ISH Solar Hospital Downey	Kaiser Permanente	Downey, CA	1 GWh	Aug 2011	Dec 2025	Solar
Sun Pacific - Lerdo	JKB Energy	Shafter, CA	6 GWh	Sep 2020	Dec 2025	Solar
San Francisco Bay Coffee	JBR, Inc.	Lincoln, CA	1 GWh	May 2014	Dec 2025	Solar
Java Solar, LLC	Java Solar, LLC	Lemoore, CA	22 GWh	Oct 2022	Dec 2025	Solar
Isabella Hydro Project	Isabella Partners	Lake Isabella, CA	32 GWh	Nov 1990	Dec 2025	Water
Irwindale Brew Yard, LLC	Irwindale Brew Yard, LLC	Irwindale, CA	517 MWh	Jan 2002	Apr 2025	Solar : 99.8%
SRI International Cogen Project	IPT SRI Cogeneration Inc	Menlo Park, CA	24 GWh	Mar 1987	Jul 2026	Natural Gas
Desert Green Solar Farm LLC	Invenergy Services LLC	Boulevard, CA	10 GWh	Oct 2014	Dec 2025	Solar
Jacumba Solar Farm	Invenergy Services LLC	Jacumba, CA	46 GWh	Jun 2017	Dec 2025	Solar
Blythe Mesa Solar II	Intersect USA, LLC	Blythe, CA	569 GWh	Nov 2022	Jul 2026	Solar
Oberon Solar Project	Intersect USA, LLC	Desert Center, CA	559 GWh	Aug 2023	Jul 2026	Solar
Oberon II Solar Project	Intersect USA, LLC	Desert Center, CA	563 GWh	Aug 2023	Jul 2026	Solar
Imperial Valley Solar, LLC	Imperial Valley Solar, LLC	Calexico, CA	442 GWh	Oct 2013	Dec 2025	Solar
Mount Signal Solar Farm V	Imperial Valley Solar 3, LLC	Calexico, CA	633 GWh	Oct 2018	Jul 2026	Solar
Pacific-Ultrapower Chinese Station	IHI Power Services Corp	Jamestown, CA	101 GWh	Sep 1986	Jul 2026	Wood/Wood Waste Solids : 98.0% Gaseous Propane : 2.0%
Shasta Solar Farm	Ignite Solar Holdings LLC	Fall River Mills, CA	6 GWh	Feb 2014	Dec 2025	Solar
SF Azalea, LLC	Idemitsu Renewables	Lost Hills, CA	107 GWh	Nov 2025	Jul 2026	Solar
Forks of Butte Hydro Project	Hypower Energy, LLC	Magalia, CA	58 GWh	Feb 1992	Dec 2025	Water
Deadwood Creek	Hydro Sierra Energy, LLC	Dobbins, CA	2 GWh	Nov 1993	Dec 2025	Water
Gosselin Hydro Plant	Humboldt Bay Mun Water Dist	Ruth, CA	5 GWh	May 1983	Dec 2025	Water
Hoag Hospital Cogen Plant	Hoag Memorial Presbyterian Hospital	Newport Beach, CA	27 GWh	Jun 2006	Jul 2026	Natural Gas
HL Power	HL Power Company	Wendel, CA	196 GWh	Jun 1989	Dec 2025	Wood/Wood Waste Solids : 99.4% Natural Gas : 0.6%
Henry Miller RD	Henry Miller Reclamation District	Dos Palos, CA	3 GWh	Sep 2018	Dec 2025	Solar
Heliocentric	Heliocentric LLC	Palmdale, CA	2 GWh	Feb 2012	Dec 2025	Solar
Valley Center	Heelstone Energy Holdings, LLC	Valley Center, CA	4 GWh	Nov 2016	Dec 2025	Solar
NLP Granger	Heelstone Energy Holdings, LLC	Valley Center, CA	5 GWh	Aug 2016	Dec 2025	Solar
Sunny Cow Solar, LLC	Headwater Energy, LLC	Bakersfield, CA	5 GWh	Sep 2023	Dec 2025	Solar
Hat Creek Bioenergy	Hat Creek Bioenergy, LLC	Burney, CA	12 GWh	May 2025	Dec 2025	Wood/Wood Waste Solids
Harris Farms Solar Facility	Harris Farms Inc	Coalinga, CA	3 GWh	Feb 2024	Dec 2025	Solar
Harbor Cogen	Harbor Cogeneration Co.	Wilmington, CA	9 GWh	Nov 1988	Nov 2025	Natural Gas
Verwey-Hanford Dairy Digester #3	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
Verwey-Hanford Dairy Digester #2	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
Three Forks Water Power Project	Grizzly Mountain Ranch	Zenia, CA	3 GWh	Nov 1984	Dec 2024	Water
Greenleaf 2 Power Plant	Greenleaf Energy LLC	Yuba City, CA	64 GWh	Sep 1989	Jun 2026	Natural Gas
Wagner Wind LLC	Greenbacker Renewable Energy Corporation	Palm Springs, CA	10 GWh	Nov 2012	Dec 2025	Wind
IGS OXR1	Greenbacker Renewable Energy Corporation	Oxnard, CA	9 GWh	Jul 2024	Dec 2025	Solar
Amazon PSP1	Greenbacker Renewable Energy Corporation	Beaumont, CA	7 GWh	Sep 2021	Dec 2025	Solar
Summit Winds	Greenbacker Renewable Energy Corporation	Livermore, CA	176 GWh	Jun 2021	Jul 2026	Wind
Dos Palos	Greenbacker Renewable Energy Corporation	Dos Palos, CA	2 GWh	Oct 2021	Dec 2024	Solar
Lake Herman	Greenbacker Renewable Energy Corporation	Benicia, CA	8 GWh	Oct 2021	Dec 2025	Solar
Goose Haven Energy Center	Goose Haven Energy Center	Suisun, CA	4 GWh	Dec 2002	Dec 2025	Natural Gas
Google Bayhill Solar PV and Microgrid	Google, Inc.	San Bruno, CA	651 MWh	Mar 2024	Dec 2025	Solar
Google Moffett Park Solar Project	Google, Inc.	Sunnyvale, CA	3 GWh	Feb 2021	Dec 2025	Solar
Building G	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Aug 2016	Dec 2025	Solar
Freeway Springs	Golden Springs Development Company LLC	Santa Fe Springs, CA	3 GWh	Sep 2016	Dec 2025	Solar
Dulles	Golden Springs Development Company LLC	Jurupa Valley, CA	2 GWh	Aug 2016	Dec 2025	Solar
Buidling L	Golden Springs Development Company LLC	Santa Fe Springs, CA	1 GWh	Oct 2016	Dec 2025	Solar
Santa Fe Springs Rooftop Solar BLDG M	Golden Springs Development Company LLC	Santa Fe Springs, CA	3 GWh	Feb 2015	Dec 2025	Solar
Santa Fe Springs Rooftop Solar BLDG H	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Feb 2015	Dec 2025	Solar
Building F	Golden Springs Development Company LLC	Santa Fe Springs, CA	1 GWh	Oct 2016	Dec 2025	Solar
Golden Springs Building C-1	Golden Springs Development Company LLC	Santa Fe Springs, CA	1 GWh	Jan 2012	Dec 2025	Solar
Golden Springs Building D	Golden Springs Development Company LLC	Santa Fe Springs, CA	2 GWh	Feb 2012	Dec 2025	Solar
Golden Hills Wind	Golden Hills Wind, LLC	Livermore, CA	253 GWh	Nov 2015	Dec 2025	Wind
Golden Hills North Wind Energy Center	Golden Hills Interconnection Wind, LLC	Livermore, CA	125 GWh	Oct 2017	Jul 2026	Wind
Rosamond South 1	Golden Fields Solar IV, LLC	Rosamond, CA	415 GWh	Jul 2025	Jul 2026	Solar
Golden Field Solar III, LLC	Golden Fields Solar III, LLC	Rosamond, CA	535 GWh	Nov 2020	Jul 2026	Solar : 99.4%
Goal Line LP	Goal Line LP	Escondido, CA	13 GWh	Jul 1994	Jul 2026	Natural Gas
Glass House Camarillo Cultivation	Glass House Camarillo Cultivation	Camarillo, CA	64 GWh	Jul 2012	Dec 2025	Natural Gas
Lambie Energy Center	Gilroy Energy Center LLC	Suisun, CA	5 GWh	Dec 2002	Dec 2025	Natural Gas
Wolfskill Energy Center	Gilroy Energy Center LLC	Fairfield, CA	4 GWh	Dec 2002	Dec 2025	Natural Gas
Riverview Energy Center	Gilroy Energy Center for Riverview	Antioch, CA	12 GWh	Apr 2003	Dec 2025	Natural Gas
Gilead Sciences La Verne Rooftop Solar	Gilead Sciences, Inc. - La Verne	La Verne, CA	2 GWh	Jun 2021	Dec 2025	Solar
Gilead Foster City Solar Project	Gilead Sciences Inc. Foster City	Foster City, CA	2 GWh	Mar 2021	Dec 2025	Solar
Gilead Oceanside Solar Project	Gilead Sciences Inc.	Oceanside, CA	952 MWh	Nov 2021	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