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
Almond	Westlands Almond LLC	Lemoore, CA	49 GWh	Aug 2023	Dec 2025	Solar
ATT Kelvin	Bloom Energy	Irvine, CA	8 GWh	Mar 2017	Dec 2025	Natural Gas
FLEX Gibraltar	Bloom Energy	Milpitas, CA	8 GWh	Jan 2017	Dec 2025	Natural Gas
PFMG Solar Grossmont Helix LLC	Altus Power America Management, LLC	La Mesa, CA	2 GWh	Apr 2018	Dec 2025	Solar
SFDK Solar	AES Distributed Energy	Vallejo, CA	10 GWh	Nov 2019	Dec 2025	Solar
Foundation Dole Fresh Vegetables	Foundation CA Fund X Manager LLC	Soledad, CA	18 GWh	Jul 2022	Dec 2025	Wind
HL Solar (Lassen)	Madison Energy Investments LLC	Wendel, CA	12 GWh	May 2019	Dec 2025	Solar
Equinix Caspian Dr. Fuel Cell	2016 ESA Project Company, LLC	Sunnyvale, CA	39 GWh	Nov 2017	Dec 2025	Natural Gas
Antelope Expansion 3A	AES Distributed Energy	Lancaster, CA	40 GWh	May 2021	Dec 2025	Solar
Antelope Expansion 3B	AES Distributed Energy	Lancaster, CA	13 GWh	May 2021	Dec 2025	Solar
American Canyon Solar	RP Napa Solar 1, LLC	American Canyon, CA	6 GWh	Aug 2019	Dec 2025	Solar
Malech Solar Farm	County of Santa Clara - (CA)	San Jose, CA	5 GWh	Sep 2017	Dec 2025	Solar
Hellyer Solar Farm	County of Santa Clara - (CA)	San Jose, CA	241 MWh	Jul 2017	Dec 2025	Solar
Guadalupe Solar Farm	County of Santa Clara - (CA)	San Jose, CA	1 GWh	Aug 2018	Dec 2025	Solar
Mission College Blvd. Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	36 GWh	Nov 2017	Dec 2025	Natural Gas
Kaiser East La Palma Ave. Fuel Cell	2016 ESA Project Company, LLC	Anaheim, CA	18 GWh	Aug 2017	Dec 2025	Natural Gas
Kaiser Deer Valley Rd. Fuel Cell	2016 ESA Project Company, LLC	Antioch, CA	11 GWh	Mar 2017	Dec 2025	Natural Gas
Kaiser Owens Dr. Fuel Cell	2016 ESA Project Company, LLC	Pleasanton, CA	8 GWh	Aug 2017	Dec 2025	Natural Gas
Kaiser Napa Valley Corporate Dr Fuel Cel	2016 ESA Project Company, LLC	Napa, CA	39 GWh	May 2017	Dec 2025	Natural Gas
Equinix Great Oaks Blvd. Fuel Cell	2016 ESA Project Company, LLC	San Jose, CA	27 GWh	Nov 2017	Dec 2025	Natural Gas
Equinix Lundy Ave. Fuel Cell	2016 ESA Project Company, LLC	San Jose, CA	31 GWh	Aug 2017	Dec 2025	Natural Gas
Equinix Douglas St. Fuel Cell	2016 ESA Project Company, LLC	El Segundo, CA	15 GWh	Aug 2017	Dec 2025	Natural Gas
Equinix Maple Ave. Fuel Cell	2016 ESA Project Company, LLC	El Segundo, CA	8 GWh	Aug 2017	Dec 2025	Natural Gas
Solar Star Palo Alto I, LLC	DG 1 Acquisition Co., LLC	Palo Alto, CA	2 GWh	Jul 2019	Dec 2025	Solar
Windsor Floating Solar	CA ODEVI LLC	Windsor, CA	3 GWh	Oct 2020	Dec 2025	Solar
Grossmont HS Solar Project	MN8 Energy LLC	El Cajon, CA	2 GWh	Nov 2018	Dec 2025	Solar
CalCity Solar 1	CalCity Solar 1, LLC	California City, CA	8 GWh	Oct 2019	Dec 2025	Solar
Eagle Creek	ZGlobal Inc	Taft, CA	8 GWh	Nov 2019	Dec 2025	Solar
Santa Barbara ReSource Center	County of Santa Barbara - (CA)	Goleta, CA	9 GWh	May 2021	Dec 2025	Other Biomass Gas
Bio-Rad	Vista Solar, Inc.	Hercules, CA	3 GWh	Sep 2021	Dec 2025	Solar
Alticor Inc - Solar Project	MN8 Energy LLC	Buena Park, CA	1 GWh	Nov 2017	Dec 2025	Solar
Niagara Bottling Stockton	ClearGen LLC	Stockton, CA	2 GWh	Dec 2017	Dec 2025	Solar
IOS II-LAX9	Madison Energy Holdings LLC	Fontana, CA	4 GWh	Jan 2020	Dec 2025	Solar
Sierra Pacific Industries (2042-RD)	Sierra Pacific Industries	Red Bluff, CA	17 GWh	Apr 2020	Dec 2025	Solar
Central CA Fuel Cell 1, LLC	Cordia	Tulare, CA	13 GWh	Apr 2018	Dec 2025	Natural Gas
RE-VFO LLC	RE-VFO LLC	Visalia, CA	2 GWh	Apr 2009	Dec 2025	Solar
D'Arrigo Brothers - Phase 4	CalCom Energy	Salinas, CA	4 GWh	Feb 2019	Dec 2025	Solar
CD4	CD4	Mammoth Lakes, CA	236 GWh	Jun 2022	Dec 2025	Geothermal
PSREC/SIAD Solar	Plumas Sierra Rural Electric Coop	Herlong, CA	6 GWh	Aug 2018	Dec 2025	Solar
Moonlight Packing - Phase 2	CalCom Energy	Reedley, CA	3 GWh	May 2019	Dec 2025	Solar
California City	MN8 Energy LLC	California City, CA	5 GWh	Jun 2018	Dec 2025	Solar
Lafayette 2 - Internal Services Dept	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	Solar
Illumina Way SD	Bloom Energy	San Diego, CA	28 GWh	Aug 2019	Dec 2025	Natural Gas
ATT North Watney	Bloom Energy	Fairfield, CA	8 GWh	Nov 2019	Dec 2025	Natural Gas
Lafayette 2 - MLK Jr. Hospital (MLK)	MN8 Energy LLC	Los Angeles, CA	2 GWh	Jul 2020	Dec 2025	Solar
Tracy 210	Costco Wholesale	Tracy, CA	21 GWh	Feb 2019	Dec 2025	Natural Gas
North Kern State Prison Phase II	SunE P11L Holdings, LLC	Delano, CA	7 GWh	Aug 2012	Dec 2025	Solar
AGT000 Stevens Creek Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	17 GWh	Aug 2018	Dec 2025	Natural Gas
CST001 McCarthy Fuel Cell	2016 ESA Project Company, LLC	Milpitas, CA	9 GWh	Dec 2018	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
EQX011 Duane Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	31 GWh	Aug 2018	Dec 2025	Natural Gas
EQX015 Great Oaks Fuel Cell	2016 ESA Project Company, LLC	San Jose, CA	31 GWh	Dec 2017	Dec 2025	Natural Gas
JSR000 N Mathilda Fuel Cell	2016 ESA Project Company, LLC	Sunnyvale, CA	9 GWh	May 2019	Dec 2025	Natural Gas
KSR028 Merced Fuel Cell	2016 ESA Project Company, LLC	San Leandro, CA	16 GWh	Mar 2018	Dec 2025	Natural Gas
GEN005 Antibody Fuel Cell	2016 ESA Project Company, LLC	Oceanside, CA	19 GWh	Mar 2019	Dec 2025	Natural Gas
SCU000 El Camino Real Fuel Cell	2016 ESA Project Company, LLC	Santa Clara, CA	12 GWh	Nov 2018	Dec 2025	Natural Gas
KSR053 Cantara Fuel Cell	2016 ESA Project Company, LLC	Panorama City, CA	12 GWh	Apr 2018	Dec 2025	Natural Gas
TLR000 Hansen Fuel Cell	2016 ESA Project Company, LLC	Salinas, CA	20 GWh	Aug 2018	Dec 2025	Natural Gas
Soscol Ferry Solar	Soscol Ferry Solar	Napa, CA	4 GWh	Nov 2020	Dec 2025	Solar
Silveira Ranch Road Solar	Silveira Ranch Road Solar	Novato, CA	5 GWh	Feb 2021	Dec 2025	Solar
Camp San Luis Obispo	Ecoplexus, Inc	San Luis Obispo, CA	2 GWh	Jul 2024	Dec 2025	Solar
Kern Valley SP	Ecoplexus, Inc	Delano, CA	8 GWh	Aug 2023	Dec 2025	Solar
Vacaville Hospital	KP Vacaville Solar, LLC	Vacaville, CA	2 GWh	Nov 2019	Dec 2025	Solar
Oasis Alta	Terra-Gen Operating Co-Wind	Mojave, CA	49 GWh	Mar 2021	Dec 2025	Wind
FTF-PackingShed	Family Tree Farms	Reedley, CA	748 MWh	May 2013	Dec 2025	Solar
Firebaugh-CCS-PV-1	Mike Woolf Farming	Firebaugh, CA	2 GWh	Feb 2015	Dec 2025	Solar
San Diego - EMDF at San Diego	California PV Energy 3, LLC	San Diego, CA	5 GWh	Mar 2021	Dec 2025	Solar
San Diego - NCRC at Vista	California PV Energy 3, LLC	Vista, CA	3 GWh	Feb 2021	Dec 2025	Solar
Wonderful Orchards - New Columbia	Wonderful Renewable Energy, LLC.	Firebaugh, CA	11 GWh	Aug 2020	Dec 2025	Solar
Still Water Power	Still Water Power LLC	Hanford, CA	1 GWh	Apr 2020	Dec 2025	Other Biomass Gas
Wonderful Orchards - Westside	Wonderful Renewable Energy, LLC.	Lost Hills, CA	13 GWh	Jul 2021	Dec 2025	Solar
Wonderful Orchards - Belridge	Wonderful Renewable Energy, LLC.	Lost Hills, CA	12 GWh	Nov 2020	Dec 2025	Solar
ESCA-LL-COLTON, LLC	Madison Energy Holdings LLC	Colton, CA	4 GWh	Aug 2021	Dec 2025	Solar
Dissigno Healdsburg FPV, LLC	Palmetto Power Management LLC	Healdsburg, CA	6 GWh	Nov 2020	Dec 2025	Solar
Tranquillity ID	Tranquillity Solar 1, LLC	Tranquillity, CA	2 GWh	Feb 2018	Dec 2025	Solar
Firestone Walker Brewery - Phase 1	SkyHigh 2 Solar	Paso Robles, CA	4 GWh	Oct 2020	Dec 2025	Solar
EMWD - Perris Valley RWRF	SkyHigh 2 Solar	Perris, CA	8 GWh	Jun 2021	Dec 2025	Solar
EMWD - San Jacinto RWRF NEM	SkyHigh 2 Solar	San Jacinto, CA	3 GWh	Jun 2021	Dec 2025	Solar
EMWD - Sun City RWRF	SkyHigh 2 Solar	Menifee, CA	4 GWh	Jun 2021	Dec 2025	Solar
EMWD - San Jacinto RES BCT	SkyHigh 2 Solar	San Jacinto, CA	11 GWh	Apr 2022	Dec 2025	Solar
CSU San Jose State University	SkyHigh 2 Solar	San Jose, CA	2 GWh	Nov 2021	Dec 2025	Solar
El Dorado County	SkyHigh 2 Solar	Placerville, CA	3 GWh	Feb 2021	Dec 2025	Solar
California State Univ at Channel Islands	SkyHigh 2 Solar	Camarillo, CA	8 GWh	Nov 2021	Dec 2025	Solar
EMWD - Moreno Valley RWRF	SkyHigh 2 Solar	Moreno Valley, CA	5 GWh	Jun 2021	Dec 2025	Solar
Vallecitos Water District	CleanCapital Holdings	San Marcos, CA	3 GWh	Aug 2021	Dec 2025	Solar
Byron Highway Solar	RPCA Solar 3, LLC	Byron, CA	12 GWh	Oct 2022	Dec 2025	Solar
CA Institute for Women	Ecoplexus, Inc	Chino, CA	2 GWh	Jan 2020	Dec 2025	Solar
Atascadero State Hospital	Ecoplexus, Inc	Atascadero, CA	3 GWh	Jul 2020	Dec 2025	Solar
Broadway 2 - UC Riverside	MN8 Energy LLC	Riverside, CA	4 GWh	Aug 2014	Dec 2025	Solar
Prologis L.P	Powerflex	Tracy, CA	6 GWh	Jul 2018	Dec 2025	Solar
County of San Diego COC Hybrid	Solar Star California LXXVIII, LLC	San Diego, CA	3 GWh	Jun 2020	Dec 2025	Solar
SEPV Sierra	SEPV Sierra, LLC	Lancaster, CA	5 GWh	Mar 2020	Dec 2025	Solar
Diamond H Dairy Power	Madera DP 2, LLC	Chowchilla, CA	12 GWh	Sep 2021	Dec 2025	Other Biomass Gas
Lake Herman	Greenbacker Renewable Energy Corporation	Benicia, CA	8 GWh	Oct 2021	Dec 2025	Solar
El Dorado Solar, LLC	Altus Power America Management, LLC	El Dorado Hills, CA	3 GWh	Mar 2021	Dec 2025	Solar
Catalina Express	Altus Power America Management, LLC	San Pedro, CA	2 GWh	Nov 2020	Dec 2025	Solar
Marina South	Altus Power America Management, LLC	San Pedro, CA	2 GWh	Nov 2020	Dec 2025	Solar
Deer Creek 2	Altus Power America Management, LLC	Shingle Springs, CA	3 GWh	Nov 2021	Dec 2025	Solar
Trona Solar III	Trona Solar III LLC	Trona, CA	5 GWh	Mar 2023	Dec 2025	Solar
Fremont CA AutoFactory	Tesla Inc.	Fremont, CA	524 MWh	Feb 2022	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