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	Jul 2026
Annual Generation	169.4 TWh
Power Plants	2,135
Utilities	988
Ranked #7 out of 64 in terms of net annual generation
Ranked #12 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 34% Solar \| 30% Water \| 12.4% Wind \| 11.3% Nuclear \| 11%

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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
RE Victor Phelan Solar One LLC	MN8 Energy LLC	Adelanto, CA	45 GWh	Nov 2013	Dec 2025	Solar
Broadway 2 - UC Riverside	MN8 Energy LLC	Riverside, CA	4 GWh	Aug 2014	Dec 2025	Solar
UC Merced Solar Hybrid	MN8 Energy LLC	Merced, CA	8 GWh	Nov 2018	Dec 2025	Solar
Slate Hybrid	MN8 Energy LLC	Stratford, CA	713 GWh	Oct 2021	May 2026	Solar
UC Riverside Lots 30 & 32	MN8 Energy LLC	Riverside, CA	7 GWh	Nov 2017	Dec 2025	Solar
Stanford Campus Solar	MN8 Energy LLC	Stanford, CA	6 GWh	Feb 2017	Dec 2025	Solar
Broadway 3 - UC Merced 1	MN8 Energy LLC	Merced, CA	929 MWh	Sep 2009	Dec 2025	Solar
RPUWD Scheuer Well Solar Project	MN8 Energy LLC	San Bernardino, CA	1 GWh	May 2018	Dec 2025	Solar
CSU Long Beach Lots 7 & 14	MN8 Energy LLC	Long Beach, CA	7 GWh	Nov 2017	Dec 2025	Solar
Vandenberg Solar Project	MN8 Energy LLC	Vandenberg Airforce B, CA	39 GWh	Nov 2017	Dec 2025	Solar
Mount Signal Solar Farm II	MN8 Energy LLC	Calexico, CA	373 GWh	Dec 2019	May 2026	Solar
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 2024	Solar
Solar Star California, XLIV, LLC	MN8 Energy LLC	Pearblossom, CA	23 GWh	Nov 2016	Dec 2025	Solar
American Kings Solar, LLC	MN8 Energy LLC	Lemoore, CA	288 GWh	Nov 2020	May 2026	Solar
Solar Star California, XLI, LLC	MN8 Energy LLC	Rosamond, CA	139 GWh	Nov 2016	May 2026	Solar
Golden Fields Solar I, LLC	MN8 Energy LLC	Rosamond, CA	140 GWh	Nov 2016	May 2026	Solar
RCWD PV Project	MN8 Energy LLC	Murrieta, CA	8 GWh	May 2016	Dec 2025	Solar
Chambers 4 - San Bernardino SNA7	MN8 Energy LLC	San Bernardino, CA	3 GWh	Nov 2018	Dec 2025	Solar
Chambers 4 - Redland LGB4	MN8 Energy LLC	Redlands, CA	4 GWh	Feb 2019	Dec 2025	Solar
Chambers 4 - Rialto LGB8	MN8 Energy LLC	Rialto, CA	3 GWh	Nov 2018	Dec 2025	Solar
Chambers 4 - Eastvale DCA2	MN8 Energy LLC	Eastvale, CA	424 MWh	Nov 2018	Dec 2024	Solar
Chambers 4 - Eastvale LGB3	MN8 Energy LLC	Eastvale, CA	4 GWh	Jan 2019	Dec 2024	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
Chevron - Lost Hills Hybrid	MN8 Energy LLC	Lost Hills, CA	64 GWh	Mar 2020	May 2026	Solar
Grossmont HS Solar Project	MN8 Energy LLC	El Cajon, CA	2 GWh	Nov 2018	Dec 2025	Solar
Broadway 4 - Target Shafter	MN8 Energy LLC	Shafter, CA	3 GWh	Aug 2018	Dec 2025	Solar
Lafayette 2 - MLK Jr. Hospital (MLK)	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	Solar
Frontier HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Mar 2025	Solar
Liberty HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Dec 2025	Solar
Target Woodland Solar Project	MN8 Energy LLC	Woodland, CA	3 GWh	Nov 2018	Dec 2025	Solar
County of San Diego SBRC	MN8 Energy LLC	Chula Vista, CA	2 GWh	Nov 2018	Dec 2025	Solar
Broadway 3 - UCSB Lot 38	MN8 Energy LLC	Santa Barbara, CA	3 GWh	Nov 2016	Dec 2025	Solar
Hudson - High Desert Hybrid	MN8 Energy LLC	Victorville, CA	295 GWh	Nov 2021	May 2026	Solar
CSU Fresno Solar Project	MMA Fresno Power LP	Fresno, CA	1 GWh	Nov 2007	Dec 2025	Solar
MM West Covina	MM West Covina Energy LLC	West Covina, CA	40 GWh	May 1993	Dec 2025	Landfill Gas : 99.7%
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 Lopez Energy	MM Lopez Energy LLC	Lake View Terrace, CA	26 GWh	Nov 1998	Dec 2025	Landfill Gas
Firebaugh-CCS-PV-1	Mike Woolf Farming	Firebaugh, CA	2 GWh	Feb 2015	Dec 2025	Solar
Midway Sunset Cogen	Midway-Sunset Cogeneration Co	Fellows, CA	6 GWh	Apr 1989	Apr 2026	Natural Gas
Temescal	Metropolitan Water District of S CA	Corona, CA	14 GWh	Jun 1983	Apr 2025	Water
San Dimas	Metropolitan Water District of S CA	San Dimas, CA	10 GWh	May 1981	Sep 2025	Water
Corona	Metropolitan Water District of S CA	Corona, CA	13 GWh	Jul 1983	Apr 2025	Water
Diamond Valley Lake	Metropolitan Water District of S CA	Winchester, CA	1 GWh	Apr 2001	Oct 2025	Water
Lake Mathews	Metropolitan Water District of S CA	Riverside, CA	6 GWh	Jul 1980	Oct 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
Weymouth Solar Plant	Metropolitan Water District of S CA	La Verne, CA	3 GWh	May 2016	Dec 2025	Solar
Mesa Wind Repower	Mesa Wind Repower	Whitewater, CA	80 GWh	May 2024	Dec 2024	Wind
Mesa Wind Power LLC	Mesa Wind Power LLC	North Palm Springs, CA	114 GWh	Oct 1984	May 2026	Wind
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
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
Humboldt Sawmill Company	Mendocino Forest Products	Scotia, CA	118 GWh	Dec 1937	May 2026	Wood/Wood Waste Solids : 99.9%
Hatchet Creek Project	Mega Renewables	Montgomery Creek, CA	22 GWh	Nov 1986	Dec 2025	Water
Bidwell Ditch Project	Mega Renewables	Hat Creek, CA	11 GWh	Feb 1987	Dec 2024	Water
McCoy Solar Energy Project Hybrid	McCoy Solar, LLC	Blythe, CA	639 GWh	Jul 2015	Dec 2025	Solar
Maverick Solar, LLC	Maverick Solar, LLC	Desert Center, CA	330 GWh	Nov 2020	May 2026	Solar
Maverick Solar 7, LLC	Maverick Solar 7, LLC	Desert Center, CA	398 GWh	Nov 2021	May 2026	Solar
Maverick Solar 6, LLC	Maverick Solar 6, LLC	Desert Center, CA	246 GWh	Oct 2021	May 2026	Solar
Maverick Solar 4, LLC	Maverick Solar 4, LLC	Desert Center, CA	296 GWh	Nov 2020	May 2026	Solar
Martinez Refining	Martinez Refining Co	Martinez, CA	669 GWh	Oct 1995	May 2026	Natural Gas : 96.6% Other Gas : 3.4%
Marsh Landing Generating Station	Marsh Landing LLC	Antioch, CA	18 GWh	Apr 2013	May 2026	Natural Gas
Muck Valley Hydroelectric	Malacha Hydro Limited Partnership	NA, CA	90 GWh	Nov 1988	Dec 2025	Water
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
North Kern 1	Madison Energy Investments LLC	Shafter, CA	7 GWh	May 2023	Dec 2025	Solar
North Kern 2	Madison Energy Investments LLC	City of Shafter, CA	6 GWh	Jun 2024	Dec 2025	Solar
Wheeler Ridge 2	Madison Energy Investments LLC	Arvin, CA	14 GWh	Oct 2023	Dec 2025	Solar
Corcoran Irrigation District	Madison Energy Investments LLC	Corcoran, CA	4 GWh	Aug 2019	Sep 2025	Solar
HL Solar (Lassen)	Madison Energy Investments LLC	Wendel, CA	12 GWh	May 2019	Dec 2025	Solar
North Kern 3	Madison Energy Investments LLC	Bakersfield, CA	14 GWh	Nov 2023	Dec 2025	Solar
Amazon Visalia (FAT2)	Madison Energy Investments LLC	Visalia, CA	4 GWh	Feb 2023	Dec 2025	Solar
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
Site 980 65	Madera-Chowchilla Power Auth	Madera, CA	2 GWh	Jan 1985	Jun 2025	Water
Diamond H Dairy Power	Madera DP 2, LLC	Chowchilla, CA	12 GWh	Sep 2021	Dec 2025	Other Biomass Gas
Lakeside Pipeline	Maas Energy Works	Hanford, CA	8 GWh	Jun 2023	Dec 2025	Solar
Van der Kooi Dairy Solar Array	Maas Energy Works	Riverdale, CA	4 GWh	Mar 2021	Dec 2024	Solar
Luna Valley	Luna Valley Solar I, LLC	Mendota, CA	267 GWh	Jul 2025	May 2026	Solar
Tulare Success Power Project	Lower Tule River Irrgtn Dist	Porterville, CA	1 GWh	Nov 1989	Aug 2025	Water
Los Medanos Energy Center	Los Medanos Energy Center LLC	Pittsburg, CA	3 TWh	Jul 2001	May 2026	Natural Gas
Los Esteros Critical Energy Center	Los Esteros Critical Energy Facility LLC	San Jose, CA	167 GWh	Jan 2003	May 2026	Natural Gas
San Gabriel Hydro Project	Los Angeles County-San Gabriel	Azusa, CA	2 GWh	Nov 1987	Apr 2025	Water
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	147 GWh	Sep 1986	May 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%
Toyota Long Beach Trigen	Long Beach Trigen, LLC	Long Beach, CA	17 GWh	Oct 2023	Dec 2024	Other Biomass Gas
Long Beach Generation	Long Beach Generation LLC	Long Beach, CA	10 GWh	Nov 1976	Dec 2024	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	60 GWh	Jan 1980	May 2026	Natural Gas
Little Bear 5	Little Bear Solar 5, LLC (Longroad)	Mendota, CA	107 GWh	Nov 2020	May 2026	Solar
Little Bear 4	Little Bear Solar 4, LLC (Longroad)	Mendota, CA	38 GWh	Nov 2020	May 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	64 GWh	Nov 2020	May 2026	Solar
Lindberg FIeld Solar	Lindberg Field Solar I LLC	San Diego, CA	3 GWh	Aug 2015	Dec 2024	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#25	Arizona Public Service Company	25.2 TWh	100
#54	Arlington Valley, LLC	3.2 TWh	1
#38	Balancing Authority of Northern California	13.7 TWh	90
#49	Imperial Irrigation District	6.2 TWh	66
#29	Los Angeles Department of Water and Power	18.8 TWh	131
#22	Nevada Power Company	36.8 TWh	143
#51	PUD No. 1 of Douglas County	4.4 TWh	4
#19	Salt River Project Agricultural Improvement and Power District	60.3 TWh	49
#57	Turlock Irrigation District	1.9 TWh	11
#40	Western Area Power Administration - Desert Southwest Region	10.4 TWh	34

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	494.1 TWh	1,471
#5	Southwest Power Pool	306.8 TWh	856
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577
#15	ISO New England	111.1 TWh	1,629
#16	Bonneville Power Administration	91.6 TWh	167