California Independent System Operator

Balancing Authority Summary Information

California Independent System Operator is ranked #7 out of 65 balancing authorities in terms of total annual electricity generation.

Balancing Authority	California Independent System Operator
States	Arizona California Nevada
Last Update	Jun 2025
Annual Generation	190.4 TWh
Power Plants	1,943
Utilities	893
Ranked #7 out of 65 in terms of net annual generation
Ranked #7 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 44% Solar \| 24.9% Water \| 11.3% Wind \| 10.6% Nuclear \| 9.7%

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Daily Net Generation for California Independent System Operator for the past 3 Years

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Voyager Wind I	Terra-Gen Operating Co-Wind	Mojave, CA	399 GWh	Nov 2019	Mar 2025	Wind
Eagle Creek	ZGlobal Inc	Taft, CA	8 GWh	Nov 2019	Dec 2023	Solar
Kaiser - Harbor City	Bloom Energy	Harbor City, CA	16 GWh	Nov 2019	Dec 2023	Natural Gas
ATT North Watney	Bloom Energy	Fairfield, CA	7 GWh	Nov 2019	Dec 2023	Natural Gas
CalTech - Pasadena Wilson Ave	Bloom Energy	Pasadena, CA	8 GWh	Nov 2019	Dec 2023	Natural Gas
Wright Solar Park	Wright Solar Park LLC	Los Banos, CA	354 GWh	Nov 2019	Mar 2025	Solar
Sunshine Valley Solar	EDP Renewables North America LLC	Armagosa, NV	268 GWh	Nov 2019	Mar 2025	Solar
Windhub Solar A LLC	EDP Renewables North America LLC	Mojave, CA	45 GWh	Nov 2019	Dec 2023	Solar
CalCity Solar 1	CalCity Solar 1, LLC	California City, CA	7 GWh	Oct 2019	Dec 2023	Solar
Valentine Solar, LLC	EDF Renewable Asset Holdings, Inc.	Rosamond, CA	292 GWh	Oct 2019	Mar 2025	Solar
Illumina Way SD	Bloom Energy	San Diego, CA	25 GWh	Aug 2019	Dec 2023	Natural Gas
Kaiser - Woodland Hills	Bloom Energy	Woodland Hills, CA	18 GWh	Aug 2019	Dec 2023	Natural Gas
EQX010 Great Oaks Fuel Cell	2016 ESA Project Company, LLC	San Jose, CA	17 GWh	Aug 2019	Dec 2023	Natural Gas
CID Solar (CA)	DG California Solar LLC	Corcoran, CA	3 GWh	Aug 2019	Dec 2023	Solar
Antelope DSR 3	AES Distributed Energy	Lancaster, CA	36 GWh	Aug 2019	Dec 2023	Solar
American Canyon Solar	RP Napa Solar 1, LLC	American Canyon, CA	7 GWh	Aug 2019	Dec 2023	Solar
San Pablo Raceway	AES Distributed Energy	Lancaster, CA	245 GWh	Jul 2019	Mar 2025	Solar
Solar Star Palo Alto I, LLC	DG 1 Acquisition Co., LLC	Palo Alto, CA	2 GWh	Jul 2019	Dec 2023	Solar
Taylor Farms - Schilling Place	Bloom Energy	Salinas, CA	6 GWh	Jun 2019	Dec 2023	Natural Gas
Verwey-Hanford Dairy Digester #2	Hanford Renewable Energy LLC	Hanford, CA	5 GWh	Jun 2019	Dec 2023	Other Biomass Gas
Verwey-Hanford Dairy Digester #3	Hanford Renewable Energy LLC	Hanford, CA	5 GWh	Jun 2019	Dec 2023	Other Biomass Gas
Moonlight Packing - Phase 2	CalCom Energy	Reedley, CA	3 GWh	May 2019	Dec 2023	Solar
JSR000 N Mathilda Fuel Cell	2016 ESA Project Company, LLC	Sunnyvale, CA	9 GWh	May 2019	Dec 2023	Natural Gas
HL Solar	HL Solar LLC	Wendel, CA	11 GWh	May 2019	Dec 2023	Solar
North Rosamond Solar LLC	North Rosamond Solar, LLC	Rosamond, CA	398 GWh	May 2019	Mar 2025	Solar
Extreme San Ignacio	Bloom Energy	San Jose, CA	6 GWh	Apr 2019	Dec 2023	Natural Gas
Cloverdale Solar Center	Adapture Renewables, Inc.	Cloverdale, CA	2 GWh	Apr 2019	Dec 2023	Solar
Foundation Mann Packing	Foundation CA Fund IX Manager, LLC	Gonzales, CA	6 GWh	Mar 2019	Dec 2023	Wind
GEN005 Antibody Fuel Cell	2016 ESA Project Company, LLC	Oceanside, CA	16 GWh	Mar 2019	Dec 2023	Natural Gas
D'Arrigo Brothers - Phase 4	CalCom Energy	Salinas, CA	4 GWh	Feb 2019	Dec 2023	Solar
Extreme Via Del Oro	Bloom Energy	San Jose, CA	8 GWh	Feb 2019	Dec 2023	Natural Gas
Tracy 210	Costco Wholesale	Tracy, CA	16 GWh	Feb 2019	Dec 2023	Natural Gas
Chambers 4 - Eastvale LGB3	MN8 Energy LLC	Eastvale, CA	4 GWh	Jan 2019	Dec 2023	Solar
CA Flats Solar 150, LLC	Arevon Energy, Inc.	Shandon, CA	315 GWh	Jan 2019	Mar 2025	Solar
CST001 McCarthy Fuel Cell	2016 ESA Project Company, LLC	Milpitas, CA	8 GWh	Dec 2018	Dec 2023	Natural Gas
Willow Spring Solar, LLC	Willow Spring Solar LLC	Rosamond, CA	239 GWh	Dec 2018	Mar 2025	Solar
OK Produce Fresno Carport	OK Produce	Fresno, CA	3 GWh	Dec 2018	Dec 2023	Solar
Blackwell Solar Park	Consolidated Edison Development Inc.	Lost Hills, CA	40 GWh	Dec 2018	Dec 2023	Solar
Voyager Wind II	Terra-Gen Operating Co-Wind	Mojave, CA	494 GWh	Nov 2018	Mar 2025	Wind
Voyager Wind III	Terra-Gen Operating Co-Wind	Mojave, CA	149 GWh	Nov 2018	Mar 2025	Wind
Voyager Wind IV	Terra-Gen Operating Co-Wind	Mojave, CA	70 GWh	Nov 2018	Dec 2023	Wind
Wistaria Ranch Solar	Consolidated Edison Development Inc.	Calexico, CA	297 GWh	Nov 2018	Mar 2025	Solar
UC Merced Solar Hybrid	MN8 Energy LLC	Merced, CA	8 GWh	Nov 2018	Dec 2023	Solar
Chambers 4 - Rialto LGB8	MN8 Energy LLC	Rialto, CA	3 GWh	Nov 2018	Dec 2023	Solar
SCU000 El Camino Real Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	11 GWh	Nov 2018	Dec 2023	Natural Gas
Reedley Community College Solar	Forefront Power, LLC	Reedley, CA	4 GWh	Nov 2018	Dec 2023	Solar
SCCCD - Clovis Community College	Forefront Power, LLC	Fresno, CA	2 GWh	Nov 2018	Dec 2023	Solar
Grossmont HS Solar Project	MN8 Energy LLC	El Cajon, CA	2 GWh	Nov 2018	Dec 2023	Solar
Green Beanworks B PV	AES Distributed Energy	Lancaster, CA	6 GWh	Nov 2018	Dec 2023	Solar
Carlsbad Energy Center	NRG California Peaker Operations LLC	Carlsbad, CA	267 GWh	Nov 2018	Mar 2025	Natural Gas
Antelope Expansion 2	AES Distributed Energy	Lancaster, CA	260 GWh	Nov 2018	Mar 2025	Solar
County of San Diego SBRC	MN8 Energy LLC	Chula Vista, CA	2 GWh	Nov 2018	Dec 2023	Solar
Target Woodland Solar Project	MN8 Energy LLC	Woodland, CA	3 GWh	Nov 2018	Dec 2023	Solar
Liberty HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Dec 2023	Solar
Frontier HS Solar Project	MN8 Energy LLC	Bakersfield, CA	3 GWh	Nov 2018	Dec 2023	Solar
Ratkovich Alhambra	Bloom Energy	Alhambra, CA	8 GWh	Nov 2018	Dec 2023	Natural Gas
Lancaster	Clean Focus Yield, LLC	Lancaster, CA	8 GWh	Oct 2018	Dec 2023	Solar
Mount Signal Solar Farm V	Imperial Valley Solar 3, LLC	Calexico, CA	645 GWh	Oct 2018	Mar 2025	Solar
SCCCD - Fresno Community College	Forefront Power, LLC	Fresno, CA	4 GWh	Sep 2018	Dec 2023	Solar
Henry Miller RD	Henry Miller Reclamation District	Dos Palos, CA	3 GWh	Sep 2018	Dec 2023	Solar
San Joaquin Solar	GASNA 6P, LLC	Helm, CA	37 GWh	Sep 2018	Dec 2023	Solar
PSREC/SIAD Solar	Plumas Sierra Rural Electric Coop	Herlong, CA	5 GWh	Aug 2018	Dec 2023	Solar
Keysight - Santa Rosa	Bloom Energy	Santa Rosa, CA	34 GWh	Aug 2018	Dec 2023	Natural Gas
Broadway 4 - Target Shafter	MN8 Energy LLC	Shafter, CA	3 GWh	Aug 2018	Dec 2023	Solar
Guadalupe Solar Farm	County of Santa Clara (CA)	San Jose, CA	2 GWh	Aug 2018	Dec 2023	Solar
AGT000 Stevens Creek Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	6 GWh	Aug 2018	Dec 2023	Natural Gas
EQX011 Duane Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	21 GWh	Aug 2018	Dec 2023	Natural Gas
TLR000 Hansen Fuel Cell	2016 ESA Project Company, LLC	Salinas, CA	8 GWh	Aug 2018	Dec 2023	Natural Gas
Green Beanworks D PV	AES Distributed Energy	Palmdale, CA	6 GWh	Jul 2018	Dec 2023	Solar
Green Beanworks C PV	AES Distributed Energy	Palmdale, CA	7 GWh	Jul 2018	Dec 2023	Solar
Prologis L.P	EnterSolar	Tracy, CA	3 GWh	Jul 2018	Dec 2023	Solar
Foundation SaIinas Valley State Prison	Foundation CA Fund IX Manager, LLC	Soledad, CA	5 GWh	Jul 2018	Dec 2023	Wind
Pacific Ethanol Madera Solar Array	Seaboard Energy California, LLC	Madera, CA	1 GWh	Jul 2018	Dec 2023	Solar
Foundation California Training Facility	Foundation CA Fund IX Manager, LLC	Soledad, CA	6 GWh	Jul 2018	Dec 2023	Wind
Micro Santa Clara	Bloom Energy	San Jose, CA	15 GWh	Jun 2018	Dec 2023	Natural Gas
California City	MN8 Energy LLC	California City, CA	5 GWh	Jun 2018	Dec 2023	Solar
Santa Rosa Junior College Petaluma Solar	Sonoma County Junior College District	Petaluma, CA	2 GWh	Jun 2018	Dec 2023	Solar
Central CA Fuel Cell 1	Central CA Fuel Cell 1	Tulare, CA	18 GWh	Apr 2018	Dec 2023	Natural Gas
PFMG Solar Grossmont Helix LLC	Altus Power America Management, LLC	La Mesa, CA	2 GWh	Apr 2018	Dec 2023	Solar
Stenner Creek Solar	Stenner Creek Solar LLC	San Luis Obispo, CA	700 MWh	Apr 2018	Dec 2023	Solar
KSR053 Cantara Fuel Cell	2016 ESA Project Company, LLC	Panorama City, CA	5 GWh	Apr 2018	Dec 2023	Natural Gas
SeaWorld Aquatica	Onyx Asset Services Group	Chula Vista, CA	2 GWh	Apr 2018	Dec 2023	Solar
Clovis High School	Tesla Inc.	Clovis, CA	1 GWh	Mar 2018	Dec 2023	Solar
Clovis East High School	Tesla Inc.	Clovis, CA	1 GWh	Mar 2018	Dec 2023	Solar
Merced 1 PV	ZGlobal Inc	Los Banos, CA	7 GWh	Mar 2018	Dec 2023	Solar
KSR028 Merced Fuel Cell	2016 ESA Project Company, LLC	San Leandro, CA	14 GWh	Mar 2018	Dec 2023	Natural Gas
Medline Ind. Phase 2 Tracy	EnterSolar	Tracy, CA	2 GWh	Mar 2018	Dec 2023	Solar
Lavio Solar	Lavio Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2023	Solar
Stage Gulch Solar	Stage Gulch Solar, LLC	Petaluma, CA	2 GWh	Mar 2018	Dec 2023	Solar
Tranquillity ID	Tranquillity Solar 1, LLC	Tranquillity, CA	3 GWh	Feb 2018	Dec 2023	Solar
Gaskell West 1 Solar Facility	Southern Power Co	Lancaster, CA	26 GWh	Feb 2018	Dec 2023	Solar
ABEC #2 dba West-Star Dairy	ABEC #2 LLC	Buttonwillow, CA	8 GWh	Jan 2018	Dec 2023	Other Biomass Gas
ABEC #3 dba Lakeview Dairy	ABEC #3 LLC	Bakersfield, CA	8 GWh	Jan 2018	Dec 2023	Other Biomass Gas
ABEC #4 dba CE&S Dairy	ABEC #4 LLC	Bakersfield, CA	8 GWh	Jan 2018	Dec 2023	Other Biomass Gas
EQX015 Great Oaks Fuel Cell	2016 ESA Project Company, LLC	San Jose, CA	29 GWh	Dec 2017	Dec 2023	Natural Gas
Kilroy Solar	Nautilus Solar Solutions	San Diego, CA	7 GWh	Dec 2017	Dec 2023	Solar
Niagara Bottling Stockton	EnterSolar	Stockton, CA	2 GWh	Dec 2017	Dec 2023	Solar
Panoche Valley Solar Farm	Consolidated Edison Development Inc.	Paicines, CA	309 GWh	Dec 2017	Mar 2025	Solar
Delano Land 1	AES Distributed Energy	Delano, CA	990 MWh	Nov 2017	Dec 2023	Solar
Bakersfield Industrial PV 1	AES Distributed Energy	Bakersfield, CA	2 GWh	Nov 2017	Dec 2023	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#26	Arizona Public Service Company	23.0 TWh	75
#55	Arlington Valley, LLC	3.4 TWh	1
#35	Balancing Authority of Northern California	15.1 TWh	83
#48	Imperial Irrigation District	5.9 TWh	65
#33	Los Angeles Department of Water and Power	17.7 TWh	120
#22	Nevada Power Company	38.2 TWh	136
#54	New Harquahala Generating Company, LLC	3.5 TWh	1
#18	Salt River Project Agricultural Improvement and Power District	58.7 TWh	45
#58	Turlock Irrigation District	2.1 TWh	11
#44	Western Area Power Administration - Desert Southwest Region	8.1 TWh	30

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#3	Electric Reliability Council of Texas, Inc.	476.4 TWh	1,139
#5	Southwest Power Pool	297.0 TWh	762
#6	Southern Company Services, Inc. - Trans	252.0 TWh	393
#7	California Independent System Operator	190.4 TWh	1,943
#8	Tennessee Valley Authority	158.8 TWh	170
#10	Florida Power & Light Co.	148.6 TWh	159
#12	New York Independent System Operator	130.6 TWh	1,100
#13	Duke Energy Carolinas	111.4 TWh	556
#15	ISO New England	103.1 TWh	1,487
#16	Bonneville Power Administration	82.1 TWh	158