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
SCV Water - Gladbach Water Treatment Plant Phases I and II	SCV Water	Santa Clara, CA	858 MWh	Nov 2014	Oct 2025	Solar
Athos Solar Project	SE Athos I, LLC	Desert Center, CA	675 GWh	May 2022	Jul 2026	Solar
SE Athos II, LLC	SE Athos II, LLC	Desert Center, CA	516 GWh	Nov 2021	Jul 2026	Solar
Pacific Ethanol Madera Solar Array	Seaboard Energy California, LLC	Madera, CA	4 GWh	Jul 2018	Dec 2025	Solar
Sealed Air Madera Solar Project	Sealed Air Corporation	Madera, CA	7 GWh	Apr 2022	Dec 2025	Solar
Argus Cogen Plant	Searles Valley Minerals Operations Inc.	Trona, CA	154 GWh	Nov 1947	Jul 2026	Bituminous Coal : 71.3% Natural Gas : 28.7%
Sentinel Energy Center, LLC	Sentinel Energy Center LLC	Desert Hot Springs, CA	165 GWh	Apr 2013	Jul 2026	Natural Gas
Welport Lease Project	Sentinel Peak Resources California, LLC	McKittrick, CA	34 GWh	Feb 1990	Dec 2025	Natural Gas
Dome Project	Sentinel Peak Resources California, LLC	Fellows, CA	48 GWh	Jul 1988	Dec 2025	Natural Gas
SEPV Cuyama Hybrid	SEPV Cuyama, LLC	New Cuyama, CA	3 GWh	Nov 2023	Dec 2025	Solar
SEPV Sierra	SEPV Sierra, LLC	Lancaster, CA	5 GWh	Mar 2020	Dec 2025	Solar
Diablo Winds LLC	Sequitur Renewables, LLC	Livermore, CA	31 GWh	Nov 2004	Dec 2025	Wind
Berry Placerita Cogen	Shadow Wolf Energy	Santa Clarita, CA	4 GWh	Feb 1990	Jul 2026	Natural Gas
Shafter Solar LLC	Shafter Solar LLC	Bakersfield, CA	41 GWh	Apr 2015	Dec 2025	Solar
Grossmont Hospital	Sharp Grossmont Hospital	La Mesa, CA	29 GWh	Jul 1983	Dec 2025	Natural Gas
Roaring Creek Water Power	Shasta Hydroelectric Inc	Montgomery Creek, CA	6 GWh	Nov 1986	Dec 2025	Water
Wheelabrator Shasta	Shasta Sustainable Resource Management, Inc.	Anderson, CA	290 GWh	Sep 1987	Jul 2026	Wood/Wood Waste Solids
Cabazon Wind Partners	Shell Wind Energy Inc.	Cabazon, CA	108 GWh	Sep 2002	Dec 2025	Wind
Whitewater Hill Wind Partners	Shell Wind Energy Inc.	North Palm Springs, CA	127 GWh	Sep 2002	Dec 2025	Wind
Sierra Nevada Brewing Co Hybrid	Sierra Nevada Brewing Co	Chico, CA	11 GWh	Apr 2005	Dec 2025	Natural Gas : 65.7% Solar : 19.5% Other Biomass Gas : 14.9%
Sierra Pacific Sonora	Sierra Pacific Industries	Standard, CA	43 GWh	Jan 2001	Dec 2025	Wood/Wood Waste Solids
Sierra Pacific Lincoln Facility	Sierra Pacific Industries	Lincoln, CA	80 GWh	Feb 2004	Dec 2025	Wood/Wood Waste Solids
SPI Anderson 2	Sierra Pacific Industries	Anderson, CA	122 GWh	Jul 2015	Dec 2025	Wood/Wood Waste Solids : 99.3% Natural Gas : 0.7%
Sierra Pacific Quincy Facility	Sierra Pacific Industries	Quincy, CA	202 GWh	Nov 1986	Dec 2025	Wood/Wood Waste Solids
Sierra Pacific Burney Facility	Sierra Pacific Industries	Burney, CA	95 GWh	Sep 1986	Dec 2025	Wood/Wood Waste Solids
Sierra Pacific Chinese Camp	Sierra Pacific Industries	Chinese Camp, CA	5 GWh	Feb 2022	Dec 2025	Solar
Sierra Pacific Industries (2042-RD)	Sierra Pacific Industries	Red Bluff, CA	17 GWh	Apr 2020	Dec 2025	Solar
Signal Hill West Unit	Signal Hill Petroleum, Inc	Signal Hill, CA	39 GWh	Jun 2004	Jul 2026	Other Gas
Silicon Valley Clean Water	Silicon Valley Clean Water	Redwood City, CA	8 GWh	Feb 2015	Dec 2025	Other Biomass Gas : 95.0% Natural Gas : 5.0%
Silveira Ranch Road Solar	Silveira Ranch Road Solar	Novato, CA	5 GWh	Feb 2021	Dec 2025	Solar
Silver State Solar Power South	Silver State Solar Power South, LLC	Primm Valley, NV	621 GWh	Oct 2015	Jul 2026	Solar
Sky River Wind Energy Center	Sky River Wind LLC	Tehachapi, CA	211 GWh	Jan 1991	Dec 2025	Wind
EMWD - Moreno Valley RWRF	SkyHigh 2 Solar	Moreno Valley, CA	5 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 - San Jacinto RES BCT	SkyHigh 2 Solar	San Jacinto, CA	11 GWh	Apr 2022	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 - Sun City RWRF	SkyHigh 2 Solar	Menifee, CA	4 GWh	Jun 2021	Dec 2025	Solar
CSU San Jose State University	SkyHigh 2 Solar	San Jose, CA	2 GWh	Nov 2021	Dec 2025	Solar
Niagara Bottling - Rialto	SkyHigh 2 Solar	Rialto, CA	8 GWh	Nov 2021	Dec 2025	Solar
EMWD - Perris Valley RWRF	SkyHigh 2 Solar	Perris, CA	8 GWh	Jun 2021	Dec 2025	Solar
Firestone Walker Brewery - Phase 1	SkyHigh 2 Solar	Paso Robles, CA	4 GWh	Oct 2020	Dec 2025	Solar
Lost Creek I	Snow Mountain Hydro LLC	Burney, CA	6 GWh	Nov 1989	Dec 2025	Water
Ponderosa Bailey Creek	Snow Mountain Hydro LLC	Manton, CA	4 GWh	Feb 1990	Dec 2025	Water
Cove Hydroelectric	Snow Mountain Hydro LLC	Burney, CA	17 GWh	Jan 1990	Dec 2025	Water
Burney Creek	Snow Mountain Hydro LLC	Burney, CA	9 GWh	Feb 1990	Dec 2025	Water
Soboba Community Solar Project	Soboba Band of Luiseno Indians	San Jacinto, CA	4 GWh	Jul 2016	Dec 2025	Solar
South County Detention Center Solar	SoCore Energy LLC	Porterville, CA	2 GWh	Oct 2019	Dec 2025	Solar
Civic Center East	SoCore Energy LLC	Visalia, CA	3 GWh	Nov 2020	Dec 2025	Solar
City of Atwater NEM	SoCore Energy LLC	Atwater, CA	2 GWh	Nov 2024	Dec 2025	Solar
Bob Wiley Detention Center	SoCore Energy LLC	Visalia, CA	3 GWh	Aug 2020	Dec 2025	Solar
Tulare Akers Professional Center	SoCore Energy LLC	Visalia, CA	2 GWh	Oct 2019	Dec 2025	Solar
Government Plaza Solar	SoCore Energy LLC	Visalia, CA	2 GWh	Oct 2020	Dec 2025	Solar
North Juvenile Detention Center Solar	SoCore Energy LLC	Visalia, CA	2 GWh	Oct 2019	Dec 2025	Solar
Solano County Cogen Plant	Solano County - (CA)	Fairfield, CA	8 GWh	May 1989	Dec 2025	Natural Gas
Monticello Dam	Solano Irrigation District	Winters, CA	41 GWh	May 1983	Dec 2025	Water
Solar Oasis LLC	Solar Oasis, LLC	Palmdale, CA	53 GWh	Dec 2015	Dec 2025	Solar
Corcoran Irrigation District Floating So	Solar Powered Ag, LLC	Corcoran, CA	3 GWh	Apr 2025	Dec 2025	Solar
Bear Creek Solar (Orinda)	Solar Star Bear Creek, LLC	Orinda, CA	7 GWh	Mar 2025	Dec 2025	Solar
County of San Diego COC Hybrid	Solar Star California LXXVIII, LLC	San Diego, CA	3 GWh	Jun 2020	Dec 2025	Solar
Solar Star 1	Solar Star California XIX, LLC	Rosamond, CA	880 GWh	Feb 2014	Jul 2026	Solar
Solar Star 2	Solar Star California XX, LLC	Rosamond, CA	764 GWh	Feb 2014	Jul 2026	Solar
Tequesquite Landfill Solar PV Project	Solar Star California XXXI, LLC	Riverside, CA	11 GWh	Sep 2015	Dec 2025	Solar
UC Davis South Campus	Solar Star California XXXII, LLC	Davis, CA	12 GWh	Feb 2015	Dec 2025	Solar
Orange Coast College PH2 Solar Project	Solar Star Coastal Pirate, LLC	Costa Mesa, CA	4 GWh	Apr 2022	Dec 2025	Solar
Amazon Bakersfield 1 Solar Project	Solar Star Prime 3, LLC	Bakersfield, CA	8 GWh	Dec 2023	Dec 2025	Solar
Amazon SAN3 Solar Project	Solar Star Prime 4 LLC	San Diego, CA	8 GWh	Apr 2024	Dec 2025	Solar
2097 Helton Solar Project	Solarenewal LLC	Merced, CA	1 GWh	Mar 2014	Dec 2025	Solar
2081 Terzian Solar Project	Solarenewal LLC	Reedley, CA	1 GWh	Jan 2014	Dec 2025	Solar
2127 Harris Solar Project	Solarenewal LLC	Live Oak, CA	885 MWh	Mar 2014	Dec 2025	Solar
Santa Rosa Junior College Petaluma Solar	Sonoma County Junior College District	Petaluma, CA	2 GWh	Jun 2018	Dec 2025	Solar
Soscol Ferry Solar	Soscol Ferry Solar	Napa, CA	4 GWh	Nov 2020	Dec 2025	Solar
Blackjack Solar	South County Packing	King City, CA	9 GWh	Nov 2020	Dec 2025	Solar
Woodleaf	South Feather Water and Power Agency	Forbestown, CA	167 GWh	Oct 1963	Dec 2025	Water
Kelly Ridge	South Feather Water and Power Agency	Oroville, CA	69 GWh	Aug 1963	Dec 2025	Water
Forbestown	South Feather Water and Power Agency	Forbestown, CA	115 GWh	Sep 1963	Dec 2025	Water
Sly Creek	South Feather Water and Power Agency	Forbestown, CA	27 GWh	Jun 1983	Dec 2025	Water
Robert O Schulz Solar Farm	South San Joaquin Irr District	Oakdale, CA	4 GWh	Apr 2008	Dec 2025	Solar
Sacramento Municipal Util Dist	South Sutter Water District	Sacramento, CA	14 GWh	Jan 1985	Dec 2025	Water
J S Eastwood	Southern California Edison Co	Shaver Lake, CA	100 GWh	Nov 1987	Jul 2026	Water
Kern River 1	Southern California Edison Co	Bakersfield, CA	176 GWh	Apr 1907	Dec 2025	Water
Bishop Creek 3	Southern California Edison Co	Bishop, CA	24 GWh	May 1913	Dec 2025	Water
Portal	Southern California Edison Co	Lakeshore, CA	26 GWh	Nov 1956	Dec 2025	Water
Bishop Creek 4	Southern California Edison Co	Bishop, CA	36 GWh	Aug 1905	Dec 2025	Water
Bishop Creek 5	Southern California Edison Co	Bishop, CA	11 GWh	May 1919	Dec 2025	Water
Mira Loma Peaker	Southern California Edison Co	Ontario, CA	1 GWh	Aug 2007	Dec 2025	Natural Gas
Bishop Creek 6	Southern California Edison Co	Bishop, CA	9 GWh	Feb 1913	Dec 2025	Water
Fontana	Southern California Edison Co	Rialto, CA	2 GWh	Nov 1917	Nov 2025	Water
Kern River 3	Southern California Edison Co	Kernville, CA	143 GWh	Feb 1921	Dec 2025	Water
Grapeland Hybrid	Southern California Edison Co	Rancho Cucamonga, CA	2 GWh	Aug 2007	Dec 2025	Natural Gas
Lundy	Southern California Edison Co	Lee Vining, CA	7 GWh	Nov 1911	Dec 2025	Water
Barre Peaker	Southern California Edison Co	Stanton, CA	5 GWh	Aug 2007	Nov 2025	Natural Gas
Solar Photovoltaic Project #42	Southern California Edison Co	Tulare, CA	6 GWh	Oct 2012	Dec 2025	Solar
Center Hybrid	Southern California Edison Co	Norwalk, CA	2 GWh	Aug 2007	Dec 2025	Natural Gas
Mammoth Pool	Southern California Edison Co	North Fork, CA	574 GWh	Feb 1960	Jul 2026	Water
Rush Creek	Southern California Edison Co	June lake, CA	30 GWh	Sep 1916	Dec 2025	Water
Poole	Southern California Edison Co	Lee Vining, CA	22 GWh	Apr 1924	Dec 2025	Water
Big Creek 1	Southern California Edison Co	Big Creek, CA	409 GWh	Oct 1913	Dec 2025	Water
Big Creek 2	Southern California Edison Co	Auberry, CA	377 GWh	Nov 1913	Dec 2025	Water
Bishop Creek 2	Southern California Edison Co	Bishop, CA	13 GWh	Oct 1908	Dec 2025	Water

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