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
Pacific Ethanol Madera Solar Array	Seaboard Energy California, LLC	Madera, CA	4 GWh	Jul 2018	Dec 2025	Solar
Guadalupe Solar Farm	County of Santa Clara - (CA)	San Jose, CA	1 GWh	Aug 2018	Dec 2025	Solar
PSREC/SIAD Solar	Plumas Sierra Rural Electric Coop	Herlong, CA	6 GWh	Aug 2018	Dec 2025	Solar
AGT000 Stevens Creek Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	17 GWh	Aug 2018	Dec 2025	Natural Gas
EQX011 Duane Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	31 GWh	Aug 2018	Dec 2025	Natural Gas
TLR000 Hansen Fuel Cell	2016 ESA Project Company, LLC	Salinas, CA	20 GWh	Aug 2018	Dec 2025	Natural Gas
Broadway 4 - Target Shafter	MN8 Energy LLC	Shafter, CA	3 GWh	Aug 2018	Dec 2025	Solar
Keysight - Santa Rosa	Bloom Energy	Santa Rosa, CA	34 GWh	Aug 2018	Dec 2025	Natural Gas
SCCCD - Fresno Community College	Forefront Power, LLC	Fresno, CA	3 GWh	Sep 2018	Dec 2024	Solar
Henry Miller RD	Henry Miller Reclamation District	Dos Palos, CA	3 GWh	Sep 2018	Dec 2025	Solar
Mount Signal Solar Farm V	Imperial Valley Solar 3, LLC	Calexico, CA	639 GWh	Oct 2018	May 2026	Solar
Lancaster	Clean Focus Yield, LLC	Lancaster, CA	8 GWh	Oct 2018	Dec 2025	Solar
Carlsbad Energy Center	NRG California Peaker Operations LLC	Carlsbad, CA	195 GWh	Nov 2018	May 2026	Natural Gas
Antelope Expansion 2	AES Distributed Energy	Lancaster, CA	234 GWh	Nov 2018	May 2026	Solar
Green Beanworks B PV	AES Distributed Energy	Lancaster, CA	6 GWh	Nov 2018	Dec 2025	Solar
Voyager Wind II	Terra-Gen Operating Co-Wind	Mojave, CA	431 GWh	Nov 2018	May 2026	Wind
Voyager Wind III	Terra-Gen Operating Co-Wind	Mojave, CA	119 GWh	Nov 2018	May 2026	Wind
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	79 GWh	Nov 2018	Dec 2025	Wind
Wistaria Ranch Solar	RWE Clean Energy	Calexico, CA	271 GWh	Nov 2018	May 2026	Solar
UC Merced Solar Hybrid	MN8 Energy LLC	Merced, CA	8 GWh	Nov 2018	Dec 2025	Solar
County of San Diego SBRC	MN8 Energy LLC	Chula Vista, CA	2 GWh	Nov 2018	Dec 2025	Solar
Target Woodland Solar Project	MN8 Energy LLC	Woodland, CA	3 GWh	Nov 2018	Dec 2025	Solar
Liberty HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Dec 2025	Solar
Frontier HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Mar 2025	Solar
Ratkovich Alhambra	Bloom Energy	Alhambra, CA	7 GWh	Nov 2018	Dec 2025	Natural Gas
Grossmont HS Solar Project	MN8 Energy LLC	El Cajon, CA	2 GWh	Nov 2018	Dec 2025	Solar
SCCCD - Clovis Community College	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2018	Dec 2024	Solar
Reedley Community College Solar	Forefront Power, LLC	Reedley, CA	4 GWh	Nov 2018	Dec 2024	Solar
SCU000 El Camino Real Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	12 GWh	Nov 2018	Dec 2025	Natural Gas
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 - San Bernardino SNA7	MN8 Energy LLC	San Bernardino, CA	3 GWh	Nov 2018	Dec 2025	Solar
CST001 McCarthy Fuel Cell	2016 ESA Project Company, LLC	Milpitas, CA	9 GWh	Dec 2018	Dec 2025	Natural Gas
OK Produce Fresno Carport	OK Produce	Fresno, CA	3 GWh	Dec 2018	Dec 2025	Solar
Blackwell Solar Park	RWE Clean Energy	Lost Hills, CA	39 GWh	Dec 2018	Dec 2025	Solar
Willow Spring Solar, LLC	Willow Spring Solar LLC	Rosamond, CA	219 GWh	Dec 2018	May 2026	Solar
CA Flats Solar 150, LLC	Arevon Energy, Inc.	Shandon, CA	288 GWh	Jan 2019	May 2026	Solar
Chambers 4 - Eastvale LGB3	MN8 Energy LLC	Eastvale, CA	4 GWh	Jan 2019	Dec 2024	Solar
D'Arrigo Brothers - Phase 4	CalCom Energy	Salinas, CA	4 GWh	Feb 2019	Dec 2025	Solar
Tracy 210	Costco Wholesale	Tracy, CA	21 GWh	Feb 2019	Dec 2025	Natural Gas
Chambers 4 - Redland LGB4	MN8 Energy LLC	Redlands, CA	4 GWh	Feb 2019	Dec 2025	Solar
GEN005 Antibody Fuel Cell	2016 ESA Project Company, LLC	Oceanside, CA	19 GWh	Mar 2019	Dec 2025	Natural Gas
Foundation Mann Packing	Foundation CA Fund IX Manager, LLC	Gonzales, CA	6 GWh	Mar 2019	Dec 2025	Wind
Cloverdale Solar Center	Adapture Renewables, Inc.	Cloverdale, CA	2 GWh	Apr 2019	Dec 2025	Solar
North Rosamond Solar LLC	North Rosamond Solar, LLC	Rosamond, CA	362 GWh	May 2019	May 2026	Solar
HL Solar (Lassen)	Madison Energy Investments LLC	Wendel, CA	12 GWh	May 2019	Dec 2025	Solar
Moonlight Packing - Phase 2	CalCom Energy	Reedley, CA	3 GWh	May 2019	Dec 2025	Solar
JSR000 N Mathilda Fuel Cell	2016 ESA Project Company, LLC	Sunnyvale, CA	9 GWh	May 2019	Dec 2025	Natural Gas
Taylor Farms - Schilling Place	Bloom Energy	Salinas, CA	8 GWh	Jun 2019	Dec 2025	Natural Gas
Verwey-Hanford Dairy Digester #2	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
Verwey-Hanford Dairy Digester #3	Hanford Renewable Energy LLC	Hanford, CA	6 GWh	Jun 2019	Dec 2025	Other Biomass Gas
San Pablo Raceway	AES Distributed Energy	Lancaster, CA	215 GWh	Jul 2019	May 2026	Solar
Solar Star Palo Alto I, LLC	DG 1 Acquisition Co., LLC	Palo Alto, CA	2 GWh	Jul 2019	Dec 2025	Solar
Antelope DSR 3	AES Distributed Energy	Lancaster, CA	55 GWh	Aug 2019	Dec 2025	Solar
American Canyon Solar	RP Napa Solar 1, LLC	American Canyon, CA	6 GWh	Aug 2019	Dec 2025	Solar
Corcoran Irrigation District	Madison Energy Investments LLC	Corcoran, CA	4 GWh	Aug 2019	Sep 2025	Solar
Illumina Way SD	Bloom Energy	San Diego, CA	28 GWh	Aug 2019	Dec 2025	Natural Gas
EQX010 Great Oaks Fuel Cell	2016 ESA Project Company, LLC	San Jose, CA	19 GWh	Aug 2019	Dec 2025	Natural Gas
Kaiser - Woodland Hills	Bloom Energy	Woodland Hills, CA	21 GWh	Aug 2019	Dec 2025	Natural Gas
Sutter Santa Rosa Solar	Sutter Santa Rosa Solar LLC	Santa Rosa, CA	2 GWh	Aug 2019	Dec 2025	Solar
CalCity Solar 1	CalCity Solar 1, LLC	California City, CA	8 GWh	Oct 2019	Dec 2025	Solar
South County Detention Center Solar	SoCore Energy LLC	Porterville, CA	2 GWh	Oct 2019	Dec 2025	Solar
North Juvenile Detention Center Solar	SoCore Energy LLC	Visalia, CA	2 GWh	Oct 2019	Dec 2025	Solar
Tulare Akers Professional Center	SoCore Energy LLC	Visalia, CA	2 GWh	Oct 2019	Dec 2025	Solar
Valentine Solar, LLC	EDF Renewable Asset Holdings, Inc.	Rosamond, CA	270 GWh	Oct 2019	May 2026	Solar
Wright Solar Park	Wright Solar Park LLC	Los Banos, CA	392 GWh	Nov 2019	May 2026	Solar
Sunshine Valley Solar	EDP Renewables North America LLC	Armagosa, NV	249 GWh	Nov 2019	May 2026	Solar
Windhub Solar A LLC	EDP Renewables North America LLC	Mojave, CA	48 GWh	Nov 2019	Dec 2025	Solar
Voyager Wind I	Terra-Gen Operating Co-Wind	Mojave, CA	343 GWh	Nov 2019	May 2026	Wind
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%
SFDK Solar	AES Distributed Energy	Vallejo, CA	10 GWh	Nov 2019	Dec 2025	Solar
Eagle Creek	ZGlobal Inc	Taft, CA	8 GWh	Nov 2019	Dec 2025	Solar
ATT North Watney	Bloom Energy	Fairfield, CA	8 GWh	Nov 2019	Dec 2025	Natural Gas
Vacaville Hospital	KP Vacaville Solar, LLC	Vacaville, CA	2 GWh	Nov 2019	Dec 2025	Solar
CalTech - Pasadena Wilson Ave	Bloom Energy	Pasadena, CA	19 GWh	Nov 2019	Dec 2025	Natural Gas
Kaiser - Harbor City	Bloom Energy	Harbor City, CA	17 GWh	Nov 2019	Dec 2025	Natural Gas
Sun Streams, LLC	EDP Renewables North America LLC	Arlington, AZ	403 GWh	Dec 2019	May 2026	Solar
Mount Signal Solar Farm II	MN8 Energy LLC	Calexico, CA	373 GWh	Dec 2019	May 2026	Solar
AES Alamitos Energy Center	AES Alamitos Energy, LLC	Long Beach, CA	1 TWh	Jan 2020	May 2026	Natural Gas
AES Huntington Beach Energy Project	AES Huntington Beach Energy, LLC	Huntington Beach, CA	2 TWh	Jan 2020	May 2026	Natural Gas
Shelter Creek Condominiums Solar	Vista Solar, Inc.	San Bruno, CA	4 GWh	Jan 2020	Dec 2024	Solar
IOS II-LAX9	Madison Energy Holdings LLC	Fontana, CA	4 GWh	Jan 2020	Dec 2025	Solar
Walnut Unified School District Walnut HS	Tesla Inc.	Walnut, CA	327 MWh	Jan 2020	Jun 2025	Solar
CA Institute for Women	Ecoplexus, Inc	Chino, CA	2 GWh	Jan 2020	Dec 2025	Solar
Fresno Bullard High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2024	Solar
Fresno Hoover High School Hybrid	Forefront Power, LLC	Fresno, CA	2 GWh	Feb 2020	Dec 2024	Solar
San Diego Community College	Bloom Energy	San Diego, CA	7 GWh	Feb 2020	Dec 2025	Natural Gas
Chevron - Lost Hills Hybrid	MN8 Energy LLC	Lost Hills, CA	64 GWh	Mar 2020	May 2026	Solar
Kroger La Habra	Ralph's Grocery Company	La Habra, CA	2 GWh	Mar 2020	Dec 2024	Solar
SEPV Sierra	SEPV Sierra, LLC	Lancaster, CA	5 GWh	Mar 2020	Dec 2025	Solar
Sierra Pacific Industries (2042-RD)	Sierra Pacific Industries	Red Bluff, CA	17 GWh	Apr 2020	Dec 2025	Solar
Still Water Power	Still Water Power LLC	Hanford, CA	1 GWh	Apr 2020	Dec 2025	Other Biomass Gas
Blythe Solar III, LLC Hybrid	Blythe Solar III, LLC	Blythe, CA	347 GWh	Apr 2020	May 2026	Solar
Borden Solar Farm	41MB 8me, LLC	Madera, CA	99 GWh	May 2020	May 2026	Solar
Kaiser - LA	Bloom Energy	Los Angeles, CA	37 GWh	May 2020	Dec 2025	Natural Gas
DGS Wasco State Prison	Forefront Power, LLC	Wasco, CA	4 GWh	Jun 2020	Dec 2024	Solar
County of San Diego COC Hybrid	Solar Star California LXXVIII, LLC	San Diego, CA	3 GWh	Jun 2020	Dec 2025	Solar
Stanton Energy Reliability Center Hybrid	Wellhead Services, Inc	Stanton, CA	4 GWh	Jun 2020	May 2026	Natural Gas
Lafayette 2 - Internal Services Dept	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	Solar
Lafayette 2 - MLK Jr. Hospital (MLK)	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	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