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
Gas Utilization Facility	City of San Diego - (CA)	San Diego, CA	27 GWh	May 1985	Jul 2026	Other Biomass Gas
Larkspur Energy Facility	Diamond Generating Corporation	San Diego, CA	23 GWh	Jun 2001	Dec 2025	Natural Gas
Watkins Manufacturing Co.	Watkins Manufacturing Corporation	San Diego, CA	8 GWh	Oct 2001	Jul 2026	Natural Gas
San Diego - EMDF at San Diego	California PV Energy 3, LLC	San Diego, CA	5 GWh	Mar 2021	Dec 2025	Solar
Kilroy Solar	Nautilus Solar Solutions	San Diego, CA	6 GWh	Dec 2017	Dec 2025	Solar
University of San Diego	Bloom Energy 2009 PPA	San Diego, CA	8 GWh	Nov 2016	Dec 2025	Natural Gas
Lindberg FIeld Solar	Lindberg Field Solar I LLC	San Diego, CA	3 GWh	Aug 2015	Dec 2025	Solar
Amazon SAN3 Solar Project	Solar Star Prime 4 LLC	San Diego, CA	8 GWh	Apr 2024	Dec 2025	Solar
Illumina Way SD	Bloom Energy	San Diego, CA	28 GWh	Aug 2019	Dec 2025	Natural Gas
San Diego Community College	Bloom Energy	San Diego, CA	7 GWh	Feb 2020	Dec 2025	Natural Gas
AT&T - San Diego Trade Street	Bloom Energy	San Diego, CA	4 GWh	Feb 2016	Dec 2025	Natural Gas
County of San Diego COC Hybrid	Solar Star California LXXVIII, LLC	San Diego, CA	3 GWh	Jun 2020	Dec 2025	Solar
W Plant	Qualcomm Incorporated	San Diego, CA	14 GWh	Jun 2005	Jul 2026	Natural Gas
Lindberg Field Solar 2	Lindberg Field Solar 2, LLC	San Diego, CA	2 GWh	Jan 2017	Dec 2025	Solar
Amazon - SAN5	Onyx Asset Services Group	San Diego, CA	530 MWh	Oct 2025	Dec 2025	Solar
CA - DGS RFP - RJ Donovan State Prison	Forefront Power, LLC	San Diego, CA	2 GWh	Dec 2023	Dec 2025	Solar
Shelter Creek Condominiums Solar	Vista Solar, Inc.	San Bruno, CA	3 GWh	Jan 2020	Dec 2025	Solar
Google Bayhill Solar PV and Microgrid	Google, Inc.	San Bruno, CA	651 MWh	Mar 2024	Dec 2025	Solar
OES Biogas Power	Organic Energy Solutions, Inc.	San Bernardino, CA	904 MWh	-	Dec 2025	Other Biomass Gas
RPUWD Scheuer Well Solar Project	MN8 Energy LLC	San Bernardino, CA	1 GWh	May 2018	Dec 2025	Solar
SB Water Reclamation Fuel Cell	San Bernardino Fuel Cell, LLC	San Bernardino, CA	8 GWh	May 2021	Dec 2025	Other Biomass Gas : 79.3% Natural Gas : 20.7%
Colton Solar One, LLC	Colton Solar One, LLC	San Bernardino, CA	4 GWh	May 2015	Dec 2025	Solar
Waterman Turnout Hydroelectric	San Bernardino Valley Mun. Water Dist.	San Bernardino, CA	2 GWh	Aug 2024	Dec 2025	Water
Chambers 4 - San Bernardino SNA7	MN8 Energy LLC	San Bernardino, CA	3 GWh	Nov 2018	Dec 2025	Solar
Devil Canyon	California Dept. of Water Resources	San Bernardino, CA	736 GWh	Nov 1972	Jul 2026	Water
Kohls San Bernardino Solar Facility	SunE WF3 KHL A Holdings, LLC	San Bernardino, CA	1 GWh	Oct 2007	Dec 2025	Solar
Salinas River Cogeneration	Salinas River Cogeneration Co	San Ardo, CA	256 GWh	Oct 1991	Jul 2026	Natural Gas
Aera San Ardo Cogen Facility	Aera Energy LLC-San Ardo	San Ardo, CA	20 GWh	Jun 1989	Dec 2025	Natural Gas
ATLAS Solar V, LLC	ATLAS Solar V, LLC	Salome, AZ	9 GWh	-	Jul 2026	Solar
D'Arrigo Brothers - Phase 4	CalCom Energy	Salinas, CA	4 GWh	Feb 2019	Dec 2025	Solar
Taylor Farms - Schilling Place	Bloom Energy	Salinas, CA	8 GWh	Jun 2019	Dec 2025	Natural Gas
TLR000 Hansen Fuel Cell	2016 ESA Project Company, LLC	Salinas, CA	20 GWh	Aug 2018	Dec 2025	Natural Gas
Beringer	SunStrong Management, LLC	Saint Helena, CA	2 GWh	Dec 2008	Dec 2025	Solar
Sacramento Municipal Util Dist	South Sutter Water District	Sacramento, CA	14 GWh	Jan 1985	Dec 2025	Water
FRV SI Transport Solar LP	FRV SI Transport Solar, L.P. (Sacremento)	Sacramento, CA	1 GWh	Jul 2010	Dec 2025	Solar
CA - Amazon - SMF6	Forefront Power, LLC	Sacramento, CA	361 MWh	Sep 2025	Dec 2025	Solar
SCDA Solar 1	SCDA Solar 1, LLC	Sacramento, CA	14 GWh	Sep 2017	Dec 2025	Solar
Gosselin Hydro Plant	Humboldt Bay Mun Water Dist	Ruth, CA	5 GWh	May 1983	Dec 2025	Water
Catalina Solar 2, LLC	Onward Energy	Rosamond, CA	55 GWh	Jul 2015	Dec 2025	Solar
Manzana Wind LLC	Avangrid Power LLC	Rosamond, CA	519 GWh	Nov 2012	Dec 2025	Wind
RE Rosamond One LLC	MN8 Energy LLC	Rosamond, CA	51 GWh	Dec 2013	Dec 2025	Solar
Solar Star 2	Solar Star California XX, LLC	Rosamond, CA	764 GWh	Feb 2014	Jul 2026	Solar
Catalina Solar LLC	EDF Renewable Asset Holdings, Inc.	Rosamond, CA	265 GWh	Nov 2012	Nov 2025	Solar
Pacific Wind LLC	EDF Renewable Asset Holdings, Inc.	Rosamond, CA	295 GWh	Jul 2012	Dec 2025	Wind
Solar Star 1	Solar Star California XIX, LLC	Rosamond, CA	880 GWh	Feb 2014	Jul 2026	Solar
RE Rosamond Two LLC	MN8 Energy LLC	Rosamond, CA	49 GWh	Dec 2013	Dec 2025	Solar
Valentine Solar, LLC	EDF Renewable Asset Holdings, Inc.	Rosamond, CA	267 GWh	Oct 2019	Jul 2026	Solar
Kingbird A Solar LLC	Arevon Energy, Inc.	Rosamond, CA	38 GWh	Mar 2016	Dec 2025	Solar
Golden Fields Solar I, LLC	MN8 Energy LLC	Rosamond, CA	136 GWh	Nov 2016	Jul 2026	Solar
RE Gaskell West 5 LLC	RE Gaskell West LLC	Rosamond, CA	48 GWh	Apr 2023	Dec 2025	Solar
Willow Spring Solar, LLC	Willow Spring Solar LLC	Rosamond, CA	220 GWh	Dec 2018	Jul 2026	Solar
RE Gaskell West 4 LLC	RE Gaskell West LLC	Rosamond, CA	48 GWh	Apr 2023	Dec 2025	Solar
RE Gaskell West 3 LLC	RE Gaskell West LLC	Rosamond, CA	51 GWh	Apr 2023	Dec 2025	Solar
Solar Star California, XLI, LLC	MN8 Energy LLC	Rosamond, CA	135 GWh	Nov 2016	Jul 2026	Solar
RE Gaskell West 2 LLC	RE Gaskell West LLC	Rosamond, CA	123 GWh	Apr 2023	Jul 2026	Solar
Chaparral Springs	Leeward Asset Management, LLC	Rosamond, CA	399 GWh	Mar 2025	Jul 2026	Solar
RE Garland A	Southern Power Co	Rosamond, CA	57 GWh	Aug 2016	Dec 2025	Solar
North Rosamond Solar LLC	North Rosamond Solar, LLC	Rosamond, CA	361 GWh	May 2019	Jul 2026	Solar
Golden Field Solar III, LLC	Golden Fields Solar III, LLC	Rosamond, CA	535 GWh	Nov 2020	Jul 2026	Solar : 99.4%
Rabbitbrush Solar, LLC	Leeward Asset Management, LLC	Rosamond, CA	250 GWh	Sep 2022	Jul 2026	Solar
Kingbird B Solar, LLC	Arevon Energy, Inc.	Rosamond, CA	55 GWh	Mar 2016	Dec 2025	Solar
RE Astoria	RE Astoria LLC	Rosamond, CA	186 GWh	Nov 2016	Jul 2026	Solar
BigBeau Solar, LLC	Big Beau Solar, LLC	Rosamond, CA	323 GWh	Jan 2022	Jul 2026	Solar
RE Garland	Southern Power Co	Rosamond, CA	510 GWh	Oct 2016	Dec 2025	Solar
City of Rosamond (CA)	Standard Solar	Rosamond, CA	3 GWh	Apr 2023	Dec 2025	Solar
RE Astoria 2	RE Astoria 2 LLC	Rosamond, CA	188 GWh	Nov 2016	Jul 2026	Solar
Camino Solar Hybrid	Avangrid Power LLC	Rosamond, CA	134 GWh	Mar 2025	Jul 2026	Solar
Rosamond South 1	Golden Fields Solar IV, LLC	Rosamond, CA	415 GWh	Jul 2025	Jul 2026	Solar
P66 Rodeo Solar	P66 Rodeo Solar	Rodeo, CA	57 GWh	Mar 2023	Jul 2026	Solar
Tequesquite Landfill Solar PV Project	Solar Star California XXXI, LLC	Riverside, CA	11 GWh	Sep 2015	Dec 2025	Solar
Broadway 2 - UC Riverside	MN8 Energy LLC	Riverside, CA	4 GWh	Aug 2014	Dec 2025	Solar
Park Meridian #1	Altus Power America Management, LLC	Riverside, CA	3 GWh	Feb 2015	Dec 2025	Solar
UC Riverside Lots 30 & 32	MN8 Energy LLC	Riverside, CA	7 GWh	Nov 2017	Dec 2025	Solar
Chambers 4 - Riverside LGB6	MN8 Energy LLC	Riverside, CA	2 GWh	Nov 2018	Dec 2025	Solar
Riverside RWQCP Fuel Cell	Riverside Fuel Cell, LLC	Riverside, CA	7 GWh	Jul 2016	Dec 2025	Other Biomass Gas : 72.9% Natural Gas : 27.1%
Lake Mathews	Metropolitan Water District of S CA	Riverside, CA	6 GWh	Jul 1980	Oct 2025	Water
Springs Generating Station	City of Riverside - (CA)	Riverside, CA	878 MWh	Jun 2002	Dec 2025	Natural Gas
Riverside Energy Resource Center	City of Riverside - (CA)	Riverside, CA	17 GWh	May 2006	Nov 2025	Natural Gas
Van der Kooi Dairy Solar Array	Maas Energy Works	Riverdale, CA	3 GWh	Mar 2021	Dec 2025	Solar
Open Sky Ranch Inc	Bravo REC Management LLC	Riverdale, CA	4 GWh	Jun 2024	Dec 2025	Solar
Open Sky Dairy	Renewable Solar, Inc	Riverdale, CA	419 MWh	Jun 2024	Dec 2025	Solar
Five Points Pipeline	Maas Energy Works	Riverdale, CA	22 MWh	Nov 2025	Dec 2025	Solar
AltaGas Ripon Energy Inc.	AltaGas Ripon Energy Inc.	Ripon, CA	2 GWh	Mar 1988	Jul 2026	Natural Gas
Shiloh I Wind Project	Avangrid Power LLC	Rio Vista, CA	400 GWh	Apr 2006	Dec 2025	Wind
Solano Wind	Sacramento Municipal Util Dist	Rio Vista, CA	708 GWh	May 1994	Jul 2026	Wind
Rio Vista Solar	Rio Vista Executive Boat & RV Storage, LLC	Rio Vista, CA	3 GWh	Mar 2025	Dec 2025	Solar
RB Inyokern Solar WDAT 1281 (CSG)	Dimension Energy LLC	Ridgecrest, CA	34 GWh	Nov 2024	Dec 2025	Solar
RB Inyokern Solar WDAT 1203 (CSG)	Dimension Energy LLC	Ridgecrest, CA	58 GWh	Nov 2024	Dec 2025	Solar
Naval Air Weapons Station China Lake	MN8 Energy LLC	Ridgecrest, CA	24 GWh	Aug 2012	Dec 2025	Solar
Richmond Cogen	Chevron Products Company-Richmond	Richmond, CA	957 GWh	Jul 1992	Jul 2026	Natural Gas : 97.6% Other Gas : 2.4%
CA Dept of Public Health at Richmond	California PV Energy LLC	Richmond, CA	4 GWh	Dec 2016	Dec 2025	Solar
Marin Clean Energy Solar One	AES Distributed Energy	Richmond, CA	21 GWh	Nov 2017	Dec 2025	Solar
Luciana	Tulare Solar Center, LLC	Richgrove, CA	138 GWh	Mar 2022	Jul 2026	Solar
Chambers 4 - Rialto LGB8	MN8 Energy LLC	Rialto, CA	3 GWh	Nov 2018	Dec 2025	Solar
Niagara Bottling - Rialto	SkyHigh 2 Solar	Rialto, CA	8 GWh	Nov 2021	Dec 2025	Solar
Fontana	Southern California Edison Co	Rialto, CA	2 GWh	Nov 1917	Nov 2025	Water
2081 Terzian Solar Project	Solarenewal LLC	Reedley, CA	1 GWh	Jan 2014	Dec 2025	Solar
FTF-PackingShed	Family Tree Farms	Reedley, CA	748 MWh	May 2013	Dec 2025	Solar
Moonlight Packing - Phase 2	CalCom Energy	Reedley, CA	3 GWh	May 2019	Dec 2025	Solar
Reedley Community College Solar	Forefront Power, LLC	Reedley, CA	4 GWh	Nov 2018	Nov 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