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
Lake Herman	Greenbacker Renewable Energy Corporation	Benicia, CA	8 GWh	Oct 2021	Dec 2025	Solar
Caribou 1	Pacific Gas & Electric Co.	Belden, CA	276 GWh	May 1921	Dec 2025	Water
Butt Valley	Pacific Gas & Electric Co.	Belden, CA	145 GWh	Nov 1958	Dec 2025	Water
Caribou 2	Pacific Gas & Electric Co.	Belden, CA	491 GWh	Oct 1958	Jul 2026	Water
Belden	Pacific Gas & Electric Co.	Belden, CA	430 GWh	Aug 1969	Jul 2026	Water
Amazon PSP1	Greenbacker Renewable Energy Corporation	Beaumont, CA	7 GWh	Sep 2021	Dec 2025	Solar
Ameresco Keller Canyon	AMERESCO Keller Canyon LLC	Bay Point, CA	16 GWh	Jun 2009	Dec 2025	Landfill Gas
Longboat Solar, LLC	Deriva Energy	Barstow, CA	54 GWh	Nov 2016	Dec 2025	Solar
Kings River PH	Pacific Gas & Electric Co.	Balch Camp, CA	81 GWh	Feb 1962	Dec 2025	Water
Balch 1	Pacific Gas & Electric Co.	Balch Camp, CA	71 GWh	Jan 1927	Dec 2025	Water
Haas	Pacific Gas & Electric Co.	Balch Camp, CA	174 GWh	Nov 1958	Jul 2026	Water
Balch 2	Pacific Gas & Electric Co.	Balch Camp, CA	342 GWh	Oct 1958	Dec 2025	Water
Kern Oil & Refining Co	Kern Oil & Refining Co	Bakersfield, CA	36 GWh	Sep 2002	Jul 2026	Natural Gas
Improvement Dst No. 4	Kern County Water Agency - (CA)	Bakersfield, CA	12 MWh	Dec 2008	Dec 2024	Solar
Live Oak Limited	WCAC Operating Company	Bakersfield, CA	18 GWh	Feb 1992	Jul 2026	Natural Gas
Badger Creek Limited	WCAC Operating Company	Bakersfield, CA	4 GWh	Mar 1991	Jul 2026	Natural Gas
Kern River Eastridge Cogen	Chevron USA Inc	Bakersfield, CA	211 GWh	May 1988	Jul 2026	Natural Gas
Western Power & Steam Inc	Western Power and Steam II LLC	Bakersfield, CA	21 GWh	Feb 1990	Jul 2026	Natural Gas
Kern River Cogeneration	Kern River Cogeneration Co	Bakersfield, CA	105 GWh	Jun 1985	Jul 2026	Natural Gas
Bear Mountain Limited	WCAC Operating Company	Bakersfield, CA	38 GWh	Mar 1995	Jul 2026	Natural Gas
Kern River 1	Southern California Edison Co	Bakersfield, CA	176 GWh	Apr 1907	Dec 2025	Water
Regulus Solar Project	Regulus Solar, LLC	Bakersfield, CA	150 GWh	Oct 2014	Dec 2025	Solar
Southeast Kern River Cogen	Chevron USA Inc	Bakersfield, CA	43 GWh	Jan 1989	Jul 2026	Natural Gas
McKittrick Limited	WCAC Operating Company	Bakersfield, CA	5 GWh	Sep 1991	Jul 2026	Natural Gas
RE Old River One, LLC	Onward Energy	Bakersfield, CA	38 GWh	Nov 2014	Dec 2025	Solar
High Sierra Limited	WCAC Operating Company	Bakersfield, CA	6 GWh	Feb 1989	Dec 2025	Natural Gas
Kern Front Limited	WCAC Operating Company	Bakersfield, CA	5 GWh	Jan 1989	Dec 2025	Natural Gas
Double C Generation Limited Partnership	WCAC Operating Company	Bakersfield, CA	6 GWh	Feb 1989	Dec 2025	Natural Gas
Chalk Cliff Limited	WCAC Operating Company	Bakersfield, CA	3 GWh	Feb 1990	Jun 2026	Natural Gas
ABEC Bidart-Old River LLC	ABEC Bidart-Old River LLC	Bakersfield, CA	16 GWh	Nov 2013	Dec 2025	Other Biomass Gas
Rio Bravo Hydro Project	Olcese Water District	Bakersfield, CA	27 GWh	Apr 1989	Nov 2025	Water
Shafter Solar LLC	Shafter Solar LLC	Bakersfield, CA	41 GWh	Apr 2015	Dec 2025	Solar
Sycamore Cogeneration	Sycamore Cogeneration Co	Bakersfield, CA	144 GWh	Nov 1987	Jun 2026	Natural Gas
Calibrant Bakersfield LLC	Bay4 Energy Services, LLC	Bakersfield, CA	4 GWh	Jan 2022	Dec 2024	Solar
AVI Bakersfield	Anthony Vineyards, Inc.	Bakersfield, CA	3 GWh	May 2022	Dec 2025	Solar
Bakersfield Industrial PV 1	AES Distributed Energy	Bakersfield, CA	1 GWh	Nov 2017	Oct 2025	Solar
Sunny Cow Solar, LLC	Headwater Energy, LLC	Bakersfield, CA	5 GWh	Sep 2023	Dec 2025	Solar
Bakersfield PV 1	AES Distributed Energy	Bakersfield, CA	6 GWh	Nov 2017	Dec 2025	Solar
Kern Co Sheriff	TotalEnergies Renewables USA LLC	Bakersfield, CA	56 MWh	Jul 2025	Dec 2025	Solar
Frontier HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Mar 2025	Solar
Allied Potato	Renewable Solar, Inc	Bakersfield, CA	310 MWh	Apr 2025	Dec 2025	Solar
Wheeler Ridge	Agilitas Energy, Inc.	Bakersfield, CA	13 GWh	Aug 2023	Dec 2025	Solar
E&B Resources	Terraform Arcadia	Bakersfield, CA	2 GWh	Nov 2013	Dec 2025	Solar
Liberty HS Solar Project	MN8 Energy LLC	Bakersfield, CA	2 GWh	Nov 2018	Dec 2025	Solar
Lerdo Detention Facility - Solar 2, 3	County of Kern - (CA)	Bakersfield, CA	2 GWh	Oct 2021	Dec 2025	Solar
Vulcan San Emidio Solar	Renew Solar VMC LLC	Bakersfield, CA	4 GWh	Feb 2023	Dec 2025	Solar
Kern Del Oro	REC KDO, LLC	Bakersfield, CA	2 GWh	Nov 2024	Dec 2025	Solar
North Kern 3	Madison Energy Investments LLC	Bakersfield, CA	14 GWh	Nov 2023	Dec 2025	Solar
ABEC #3 dba Lakeview Dairy	ABEC #3 LLC	Bakersfield, CA	5 GWh	Jan 2018	Dec 2025	Other Biomass Gas
Amazon Bakersfield 1 Solar Project	Solar Star Prime 3, LLC	Bakersfield, CA	8 GWh	Dec 2023	Dec 2025	Solar
Kern Sunset 1886-WD	Standard Solar	Bakersfield, CA	5 GWh	Oct 2024	Dec 2025	Solar
ABEC #4 dba CE&S Dairy	ABEC #4 LLC	Bakersfield, CA	7 GWh	Jan 2018	Dec 2025	Other Biomass Gas
Berry NMW Cogens	Berry Petroleum Co	Bakersfield, CA	76 GWh	Oct 2017	Dec 2025	Natural Gas
San Gabriel Hydro Project	Los Angeles County-San Gabriel	Azusa, CA	2 GWh	Nov 1987	Apr 2025	Water
Diablo Canyon	Pacific Gas & Electric Co.	Avila Beach, CA	18 TWh	Apr 1985	Jul 2026	Nuclear
Avenal Park	Avenal Solar Holdings LLC	Avenal, CA	10 GWh	Jul 2011	Dec 2025	Solar
Sun City Project LLC	Avenal Solar Holdings LLC	Avenal, CA	33 GWh	Jul 2011	Dec 2025	Solar
Sand Drag LLC	Avenal Solar Holdings LLC	Avenal, CA	32 GWh	Jul 2011	Dec 2025	Solar
CED Avenal	RWE Clean Energy	Avenal, CA	16 GWh	Dec 2016	Dec 2025	Solar
Pebbly Beach Generating Station Hybrid	Southern California Edison Co	Avalon, CA	28 GWh	Jun 1958	Jul 2026	Distillate Fuel Oil : 95.4% Gaseous Propane : 4.6%
Combie South	Nevada Irrigation District	Auburn, CA	4 GWh	Mar 1984	Dec 2025	Water
Newcastle	Pacific Gas & Electric Co.	Auburn, CA	6 GWh	Nov 1986	Dec 2025	Water
Wise	Pacific Gas & Electric Co.	Auburn, CA	30 GWh	Feb 1917	Dec 2025	Water
Halsey	Pacific Gas & Electric Co.	Auburn, CA	22 GWh	Nov 1916	Dec 2025	Water
Big Creek 2A	Southern California Edison Co	Auberry, CA	325 GWh	Jul 1928	Jul 2026	Water
Big Creek 8	Southern California Edison Co	Auberry, CA	152 GWh	Jul 1921	Dec 2025	Water
Big Creek 3	Southern California Edison Co	Auberry, CA	760 GWh	Aug 1923	Jul 2026	Water
Kerckhoff 2	Pacific Gas & Electric Co.	Auberry, CA	450 GWh	Apr 1983	Jul 2026	Water
Big Creek 2	Southern California Edison Co	Auberry, CA	377 GWh	Nov 1913	Dec 2025	Water
City of Atwater NEM	SoCore Energy LLC	Atwater, CA	2 GWh	Nov 2024	Dec 2025	Solar
Atascadero State Hospital	Ecoplexus, Inc	Atascadero, CA	3 GWh	Jul 2020	Dec 2025	Solar
Wheeler Ridge 2	Madison Energy Investments LLC	Arvin, CA	14 GWh	Oct 2023	Dec 2025	Solar
Tejon Castac Water District Solar	CTMW Solar, LLC	Arvin, CA	4 GWh	Apr 2024	Dec 2025	Solar
Orion Solar II	Orion Solar II, LLC	Arvin, CA	16 GWh	May 2014	Dec 2025	Solar
Orion Solar I	Orion Solar I LLC	Arvin, CA	27 GWh	Mar 2014	Dec 2025	Solar
Adobe Solar	Southern Power Co	Arvin, CA	36 GWh	Apr 2014	Dec 2025	Solar
Graniterock Quarry	CalCom Energy	Aromas, CA	9 GWh	Aug 2022	Dec 2025	Solar
Sunshine Valley Solar	EDP Renewables North America LLC	Armagosa, NV	246 GWh	Nov 2019	Jul 2026	Solar
Sun Streams, LLC	EDP Renewables North America LLC	Arlington, AZ	336 GWh	Dec 2019	Jul 2026	Solar
Foster Clean Power A	Foster Clean Power A, LLC	Arcata, CA	846 MWh	Sep 2025	Dec 2025	Solar
Foster Clean Power B	Foster Clean Power B LLC	Arcata, CA	901 MWh	Aug 2025	Dec 2025	Solar
Cabrillo College	Forefront Power, LLC	Aptos, CA	4 GWh	Nov 2023	Dec 2025	Solar
Otoe Solar Power Generation Station 1 LL	AES Distributed Energy	Apple Valley, CA	3 GWh	Nov 2013	Dec 2025	Solar
Powhatan Solar Power Generation Station	AES Distributed Energy	Apple Valley, CA	4 GWh	Nov 2013	Dec 2025	Solar
Nunn	CD US Solar MT 2 LLC	Apple Valley, CA	1 GWh	Jun 2013	Dec 2025	Solar
Foundation Cemex BMQ	Foundation CA Fund VI Manager LLC	Apple Valley, CA	4 GWh	Nov 2012	Dec 2025	Wind
Navajo Solar Power Generation Station 1	AES Distributed Energy	Apple Valley, CA	4 GWh	Nov 2013	Dec 2025	Solar
SunEdison Walmart Apple Valley DC	SunE M5 Holdings LLC	Apple Valley, CA	715 MWh	Feb 2009	Nov 2025	Solar
SunAnza	Arizona Electric Pwr Coop Inc	Anza, CA	8 GWh	Aug 2017	Dec 2025	Solar
Kaiser Deer Valley Rd. Fuel Cell	2016 ESA Project Company, LLC	Antioch, CA	11 GWh	Mar 2017	Dec 2025	Natural Gas
Riverview Energy Center	Gilroy Energy Center for Riverview	Antioch, CA	12 GWh	Apr 2003	Dec 2025	Natural Gas
Marsh Landing Generating Station	Marsh Landing LLC	Antioch, CA	26 GWh	Apr 2013	Jul 2026	Natural Gas
Gateway Generating Station	Pacific Gas & Electric Co.	Antioch, CA	2 TWh	Dec 2008	Jul 2026	Natural Gas
Angels	Utica Water & Power Authority	Angels Camp, CA	6 GWh	Dec 1939	Dec 2025	Water
Wheelabrator Shasta	Shasta Sustainable Resource Management, Inc.	Anderson, CA	290 GWh	Sep 1987	Jul 2026	Wood/Wood Waste Solids
Coleman PH	Pacific Gas & Electric Co.	Anderson, CA	31 GWh	May 1979	Dec 2025	Water
SPI Anderson 2	Sierra Pacific Industries	Anderson, CA	122 GWh	Jul 2015	Dec 2025	Wood/Wood Waste Solids : 99.3% Natural Gas : 0.7%
Kaiser East La Palma Ave. Fuel Cell	2016 ESA Project Company, LLC	Anaheim, CA	18 GWh	Aug 2017	Dec 2025	Natural Gas
AT&T Anaheim	Bloom Energy	Anaheim, CA	7 GWh	Aug 2016	Dec 2025	Natural Gas
Canyon Power Plant	City of Anaheim - (CA)	Anaheim, CA	43 GWh	Jul 2011	Jul 2026	Natural Gas

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