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
L-8 Solar Project	L-8 Solar Project LLC	Palmdale, CA	2 GWh	Apr 2012	Dec 2025	Solar
Lavio Solar	Lavio Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2025	Solar
Rabbitbrush Solar, LLC	Leeward Asset Management, LLC	Rosamond, CA	250 GWh	Sep 2022	Jul 2026	Solar
Chaparral Springs	Leeward Asset Management, LLC	Rosamond, CA	399 GWh	Mar 2025	Jul 2026	Solar
White Wing Solar	Leeward Asset Management, LLC	Yuma, AZ	445 GWh	Sep 2024	Jul 2026	Solar
Kumeyaay Wind	Leeward Asset Management, LLC	Campo, CA	131 GWh	Nov 2005	Dec 2025	Wind
Buena Vista Energy LLC	Leeward Asset Management, LLC	Byron, CA	96 GWh	Nov 2006	Dec 2025	Wind
Lemoore West	Leprino Foods	Lemoore, CA	17 GWh	Nov 2022	Dec 2025	Solar
Lincoln WWTF Hybrid	Lincoln Solar Star, LLC	Lincoln, CA	6 GWh	Jul 2021	Dec 2025	Solar
Lindberg Field Solar 2	Lindberg Field Solar 2, LLC	San Diego, CA	2 GWh	Jan 2017	Dec 2025	Solar
Lindberg FIeld Solar	Lindberg Field Solar I LLC	San Diego, CA	3 GWh	Aug 2015	Dec 2025	Solar
Little Bear Solar 1, LLC	Little Bear Solar 1, LLC (Longroad)	Mendota, CA	71 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 4	Little Bear Solar 4, LLC (Longroad)	Mendota, CA	41 GWh	Nov 2020	Jul 2026	Solar
Little Bear 5	Little Bear Solar 5, LLC (Longroad)	Mendota, CA	106 GWh	Nov 2020	Jul 2026	Solar
Lockheed Martin Palmdale Solar PV	Lockheed Martin Corporation	Palmdale, CA	53 GWh	Apr 2016	Dec 2025	Solar
Loma Linda University Cogen	Loma Linda University	Loma Linda, CA	61 GWh	Jan 1980	Jul 2026	Natural Gas
Lone Valley Solar Park I LLC	Lone Valley Solar Park I LLC	Lucerne Valley, CA	24 GWh	Nov 2014	Dec 2025	Solar
Lone Valley Solar Park II LLC	Lone Valley Solar Park II LLC	Lucerne Valley, CA	53 GWh	Nov 2014	Dec 2025	Solar
Long Beach Generation	Long Beach Generation LLC	Long Beach, CA	6 GWh	Nov 1976	Dec 2025	Natural Gas
Toyota Long Beach Trigen	Long Beach Trigen, LLC	Long Beach, CA	13 GWh	Oct 2023	Dec 2025	Other Biomass Gas
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
Total Energy Facilities	Los Angeles County Sanitation	Carson, CA	157 GWh	Dec 1985	Dec 2025	Other Biomass Gas : 94.7% Natural Gas : 5.3%
San Gabriel Hydro Project	Los Angeles County-San Gabriel	Azusa, CA	2 GWh	Nov 1987	Apr 2025	Water
Los Esteros Critical Energy Center	Los Esteros Critical Energy Facility LLC	San Jose, CA	180 GWh	Jan 2003	Jul 2026	Natural Gas
Los Medanos Energy Center	Los Medanos Energy Center LLC	Pittsburg, CA	3 TWh	Jul 2001	Jul 2026	Natural Gas
Tulare Success Power Project	Lower Tule River Irrgtn Dist	Porterville, CA	1 GWh	Nov 1989	Aug 2025	Water
Luna Valley	Luna Valley Solar I, LLC	Mendota, CA	369 GWh	Jul 2025	Jul 2026	Solar
Lakeside Pipeline	Maas Energy Works	Hanford, CA	8 GWh	Jun 2023	Dec 2025	Solar
Van der Hoek Solar Array/ Dairy	Maas Energy Works	Helm, CA	667 MWh	Jul 2017	Dec 2025	Solar
Van der Kooi Dairy Solar Array	Maas Energy Works	Riverdale, CA	3 GWh	Mar 2021	Dec 2025	Solar
Five H Farms Solar Array	Maas Energy Works	Merced, CA	2 GWh	Mar 2021	Dec 2025	Solar
Merced Pipeline	Maas Energy Works	Merced, CA	1 GWh	Jun 2023	Dec 2025	Solar
Five Points Pipeline	Maas Energy Works	Riverdale, CA	22 MWh	Nov 2025	Dec 2025	Solar
Diamond H Dairy Power	Madera DP 2, LLC	Chowchilla, CA	12 GWh	Sep 2021	Dec 2025	Other Biomass Gas
Site 980 65	Madera-Chowchilla Power Auth	Madera, CA	2 GWh	Jan 1985	Jun 2025	Water
ESCA-LL-COLTON, LLC	Madison Energy Holdings LLC	Colton, CA	4 GWh	Aug 2021	Dec 2025	Solar
IOS II-LAX9	Madison Energy Holdings LLC	Fontana, CA	4 GWh	Jan 2020	Dec 2025	Solar
North Kern 3	Madison Energy Investments LLC	Bakersfield, CA	14 GWh	Nov 2023	Dec 2025	Solar
North Kern 1	Madison Energy Investments LLC	Shafter, CA	7 GWh	May 2023	Dec 2025	Solar
Amazon Visalia (FAT2)	Madison Energy Investments LLC	Visalia, CA	4 GWh	Feb 2023	Dec 2025	Solar
Wheeler Ridge 2	Madison Energy Investments LLC	Arvin, CA	14 GWh	Oct 2023	Dec 2025	Solar
North Kern 2	Madison Energy Investments LLC	City of Shafter, CA	6 GWh	Jun 2024	Dec 2025	Solar
HL Solar (Lassen)	Madison Energy Investments LLC	Wendel, CA	12 GWh	May 2019	Dec 2025	Solar
Corcoran Irrigation District	Madison Energy Investments LLC	Corcoran, CA	4 GWh	Aug 2019	Sep 2025	Solar
Venable Solar 2	Madison Energy Investments LLC	Blythe, CA	3 GWh	Mar 2015	Sep 2025	Solar
Venable Solar 1	Madison Energy Investments LLC	Blythe, CA	4 GWh	Mar 2015	Dec 2025	Solar
Muck Valley Hydroelectric	Malacha Hydro Limited Partnership	NA, CA	90 GWh	Nov 1988	Dec 2025	Water
Marsh Landing Generating Station	Marsh Landing LLC	Antioch, CA	26 GWh	Apr 2013	Jul 2026	Natural Gas
Martinez Refining	Martinez Refining Co	Martinez, CA	662 GWh	Oct 1995	Jul 2026	Natural Gas : 96.3% Other Gas : 3.7%
Maverick Solar 4, LLC	Maverick Solar 4, LLC	Desert Center, CA	294 GWh	Nov 2020	Jul 2026	Solar
Maverick Solar 6, LLC	Maverick Solar 6, LLC	Desert Center, CA	233 GWh	Oct 2021	Jul 2026	Solar
Maverick Solar 7, LLC	Maverick Solar 7, LLC	Desert Center, CA	397 GWh	Nov 2021	Jul 2026	Solar
Maverick Solar, LLC	Maverick Solar, LLC	Desert Center, CA	312 GWh	Nov 2020	Jul 2026	Solar
McCoy Solar Energy Project Hybrid	McCoy Solar, LLC	Blythe, CA	639 GWh	Jul 2015	Dec 2025	Solar
Bidwell Ditch Project	Mega Renewables	Hat Creek, CA	12 GWh	Feb 1987	Dec 2025	Water
Hatchet Creek Project	Mega Renewables	Montgomery Creek, CA	22 GWh	Nov 1986	Dec 2025	Water
Humboldt Sawmill Company	Mendocino Forest Products	Scotia, CA	119 GWh	Dec 1937	Jul 2026	Wood/Wood Waste Solids : 99.8%
Parker	Merced Irrigation District	Snelling, CA	6 GWh	Mar 1982	Jun 2025	Water
McSwain	Merced Irrigation District	Snelling, CA	27 GWh	Jun 1967	Oct 2025	Water
Merced Falls	Merced Irrigation District	Snelling, CA	9 GWh	Jun 1930	Sep 2025	Water
Exchequer	Merced Irrigation District	Snelling, CA	246 GWh	Jun 1967	Dec 2025	Water
Mesa Wind Power LLC	Mesa Wind Power LLC	North Palm Springs, CA	117 GWh	Oct 1984	Jul 2026	Wind
Mesa Wind Repower	Mesa Wind Repower	Whitewater, CA	80 GWh	May 2024	Dec 2024	Wind
Weymouth Solar Plant	Metropolitan Water District of S CA	La Verne, CA	3 GWh	May 2016	Dec 2025	Solar
Diamond Valley Lake	Metropolitan Water District of S CA	Winchester, CA	1 GWh	Apr 2001	Oct 2025	Water
Corona	Metropolitan Water District of S CA	Corona, CA	13 GWh	Jul 1983	Apr 2025	Water
Temescal	Metropolitan Water District of S CA	Corona, CA	14 GWh	Jun 1983	Apr 2025	Water
Etiwanda	Metropolitan Water District of S CA	Rancho Cucamonga, CA	1 GWh	Nov 1994	Jul 2025	Water
Yorba Linda	Metropolitan Water District of S CA	Yorba Linda, CA	9 GWh	Oct 1981	Nov 2025	Water
San Dimas	Metropolitan Water District of S CA	San Dimas, CA	10 GWh	May 1981	Sep 2025	Water
Lake Mathews	Metropolitan Water District of S CA	Riverside, CA	6 GWh	Jul 1980	Oct 2025	Water
Midway Sunset Cogen	Midway-Sunset Cogeneration Co	Fellows, CA	8 GWh	Apr 1989	Jul 2026	Natural Gas
Firebaugh-CCS-PV-1	Mike Woolf Farming	Firebaugh, CA	2 GWh	Feb 2015	Dec 2025	Solar
MM Lopez Energy	MM Lopez Energy LLC	Lake View Terrace, CA	26 GWh	Nov 1998	Dec 2025	Landfill Gas
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%
MM West Covina	MM West Covina Energy LLC	West Covina, CA	40 GWh	May 1993	Dec 2025	Landfill Gas : 99.7%
CSU Fresno Solar Project	MMA Fresno Power LP	Fresno, CA	1 GWh	Nov 2007	Dec 2025	Solar
Ramona 2	MN8 Energy LLC	Ramona, CA	9 GWh	Nov 2013	Dec 2025	Solar
RE Rosamond One LLC	MN8 Energy LLC	Rosamond, CA	51 GWh	Dec 2013	Dec 2025	Solar
RE Rosamond Two LLC	MN8 Energy LLC	Rosamond, CA	49 GWh	Dec 2013	Dec 2025	Solar
RE Rio Grande Solar LLC	MN8 Energy LLC	Mojave, CA	10 GWh	Nov 2013	Dec 2025	Solar
RE Columbia 3 LLC	MN8 Energy LLC	Mojave, CA	23 GWh	Dec 2013	Dec 2025	Solar
RE Victor Phelan Solar One LLC	MN8 Energy LLC	Adelanto, CA	45 GWh	Nov 2013	Dec 2025	Solar
RE Mustang LLC	MN8 Energy LLC	Lemoore, CA	221 GWh	Jul 2016	Dec 2025	Solar
Naval Air Weapons Station China Lake	MN8 Energy LLC	Ridgecrest, CA	24 GWh	Aug 2012	Dec 2025	Solar
Gap Pacific Distribution Center	MN8 Energy LLC	Fresno, CA	5 GWh	Sep 2008	Dec 2025	Solar
Valley Center 1	MN8 Energy LLC	Valley Center, CA	4 GWh	Nov 2013	Dec 2025	Solar
Valley Center 2	MN8 Energy LLC	Valley Center, CA	8 GWh	Nov 2013	Dec 2025	Solar
Ramona 1	MN8 Energy LLC	Ramona, CA	3 GWh	Nov 2013	Dec 2025	Solar
California City	MN8 Energy LLC	California City, CA	5 GWh	Jun 2018	Dec 2025	Solar
Alticor Inc - Solar Project	MN8 Energy LLC	Buena Park, CA	1 GWh	Nov 2017	Dec 2025	Solar
Lafayette 2 - Internal Services Dept	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	Solar
Grossmont HS Solar Project	MN8 Energy LLC	El Cajon, CA	2 GWh	Nov 2018	Dec 2025	Solar
Chevron - Lost Hills Hybrid	MN8 Energy LLC	Lost Hills, CA	63 GWh	Mar 2020	Jul 2026	Solar
Lafayette 2 - MLK Jr. Hospital (MLK)	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	Solar
Slate Hybrid	MN8 Energy LLC	Stratford, CA	690 GWh	Oct 2021	Jul 2026	Solar
Liberty HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Dec 2025	Solar
CSU Long Beach Lots 7 & 14	MN8 Energy LLC	Long Beach, CA	7 GWh	Nov 2017	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