ISO New England

Balancing Authority Summary Information

ISO New England is ranked #15 out of 65 balancing authorities in terms of total annual electricity generation.

Balancing Authority	ISO New England
States	Connecticut Maine Massachusetts New Hampshire New York Rhode Island Vermont
Last Update	Dec 2024
Annual Generation	103.6 TWh
Power Plants	1,487
Utilities	782
Ranked #15 out of 65 in terms of net annual generation
Ranked #12 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 57.2% Nuclear \| 25.3% Water \| 7.3% Other Fuel \| 4.5% Wind \| 3.4% Solar \| 1.2% Coal \| 0.2%

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Daily Net Generation for ISO New England for the past 3 Years

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
A Street 1	Captona A Street 1 Johnston LLC	Johnston, RI	2 GWh	Nov 2018	Dec 2023	Solar
A Street 2	Captona A Street 2 Johnston LLC	Johnston, RI	3 GWh	Nov 2018	Dec 2023	Solar
Acton	Acton H Road Solar 1, LLC	Acton, ME	5 GWh	Nov 2021	Dec 2023	Solar
Acton Solar Landfill	Heliovaas LLC	Acton, MA	1 GWh	Nov 2013	Dec 2023	Solar
Acushnet AD Makepeace	CleanCapital Holdings	Wareham, MA	6 GWh	Jun 2012	Dec 2023	Solar
Acushnet-Braley Road 1	CleanCapital Holdings	Freetown, MA	3 GWh	Dec 2012	Dec 2023	Solar
Acushnet Hawes Reed Road	CleanCapital Holdings	Dartmouth, MA	2 GWh	Jun 2012	Dec 2023	Solar
Acushnet- High Hill	CleanCapital Holdings	Dartmouth, MA	4 GWh	Feb 2013	Dec 2023	Solar
Acushnet MA 1	Navisun LLC	Acushnet, MA	59 MWh	Nov 2023	Dec 2023	Solar
Adams Farm Solar	Altus Power America Management, LLC	Athol, MA	4 GWh	Sep 2013	Dec 2023	Solar
Adams Solar	Ecos Energy LLC	Lebanon, CT	1 GWh	Feb 2018	Dec 2023	Solar
Adirondack A+B Community Solar Garden	BWC Connecticut River LLC	Westport, MA	8 GWh	Nov 2018	Dec 2023	Solar
Advance Stores Company, Inc	Tesla Inc.	Enfield, CT	1 GWh	Oct 2014	Dec 2023	Solar
Agawam Solar	Citizens Enterprises Corporation	Agawam, MA	2 GWh	Feb 2012	Dec 2023	Solar
AIS Solar Project	Terraform Arcadia	Leominster, MA	4 GWh	Nov 2016	Dec 2023	Solar
Ajax Solar, LLC (MA)	Green Street Power Partners	West Bridgewater, MA	4 GWh	Nov 2017	Dec 2023	Solar
ALDI DC 2	EnterSolar	South Windsor, CT	2 GWh	Jan 2018	Dec 2023	Solar
Algonquin Windsor Locks	Algonquin Windsor Locks LLC	Windsor Locks, CT	129 GWh	Dec 1989	Sep 2024	Natural Gas : 99.9%
Alicea Solar Project Hybrid CSG	AES Distributed Energy	Southbridge, MA	4 GWh	Nov 2020	Dec 2023	Solar
Alton Road Solar	Revity Energy LLC	Bradford, RI	24 GWh	Nov 2019	Dec 2023	Solar
Amaterasu LLC	AES Distributed Energy	Lancaster, MA	7 GWh	May 2021	Dec 2023	Solar
Amazon BDL3 Solar Project	Solar Star Prime 1 LLC	New Haven, CT	1 GWh	Sep 2019	Dec 2023	Solar
Ameresco Chicopee Energy	AMERESCO Chicopee Energy LLC	Chicopee, MA	14 GWh	Jan 2004	Dec 2023	Landfill Gas
Amherst College Co Gen	Amherst College	Amherst, MA	5 GWh	Oct 2006	Dec 2023	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Amoskeag	Central Rivers Power NH, LLC	Manchester, NH	114 GWh	Jul 1922	Dec 2023	Water
Androscoggin Energy Center	JGT2 Energy LLC	Jay, ME	82 GWh	Sep 1999	Dec 2023	Natural Gas : 96.1% Distillate Fuel Oil : 3.9%
Androscoggin Mill	Pixelle Androscoggin LLC	Jay, ME	69 GWh	Dec 1963	Mar 2023	Natural Gas : 51.1% Black Liquor : 37.4% Wood/Wood Waste Solids : 11.6%
Annese Solar Project Hybrid CSG	AES Distributed Energy	Southbridge, MA	7 GWh	Nov 2020	Dec 2023	Solar
ANP Bellingham Energy Project	Bellingham Power Generation LLC	Bellingham, MA	3 TWh	Oct 2002	Sep 2024	Natural Gas
ANP Blackstone Energy Project	ANP Blackstone Energy Company LLC	Blackstone, MA	2 TWh	May 2001	Sep 2024	Natural Gas
Anson Abenaki Hydros	Eagle Creek Renewable Energy, LLC	Madison, ME	145 GWh	Dec 1949	Dec 2023	Water
Antanavica Solar	Cypress Creek Renewables	Leicester, MA	1 GWh	Jul 2018	Dec 2023	Solar
Antares-GRE 314 East Lyme LLC	MN8 Energy LLC	East Lyme, CT	4 GWh	May 2014	Sep 2024	Solar
Antrim Wind	Antrim Wind Energy LLC	Antrim, NH	66 GWh	Nov 2019	Sep 2024	Wind
Arctaris Saddleback Solar	Arctaris Saddleback Solar, LLC	Dallas Plantation, ME	201 MWh	Oct 2023	Dec 2023	Solar
Ascutney	Green Mountain Power Corp	Weatherfield, VT	239 MWh	Jul 1961	Aug 2024	Distillate Fuel Oil
ASD Cotuit MA Solar LLC	ASD Cotuit MA Solar LLC	Sandwich, MA	110 MWh	Oct 2023	Dec 2023	Solar
ASD Wallum MA Solar LLC(CSG)	ASD Wallum MA Solar LLC	Douglas, MA	7 GWh	Dec 2021	Dec 2023	Solar
Ashby Duffy CSG Solar Farm	LSE Cassiopeia LLC	Ashby, MA	3 GWh	Nov 2017	Dec 2023	Solar
Ashby Solar, LLC CSG	Ashby Solar, LLC	Fitchburg, MA	3 GWh	Jun 2018	Dec 2023	Solar
Ashland Solar	Citizens Enterprises Corporation	Ashland, MA	7 GWh	Nov 2019	Dec 2023	Solar
Athens AT01	Nautilus Solar Solutions	Athens, ME	7 GWh	May 2022	Dec 2023	Solar
Athens Energy	Athens Energy, LLC	Athens, ME	60 GWh	Sep 2016	Dec 2023	Wood/Wood Waste Solids
Auburn Solar Project	Agilitas Energy, Inc.	Auburn, MA	8 GWh	Apr 2022	Dec 2023	Solar
Augusta	Maine DG Solar Augusta, LLC	Augusta, ME	5 GWh	Feb 2022	Dec 2023	Solar
Augusta PV - BD Solar Augusta LLC	BD Solar Augusta LLC	Augusta, ME	7 GWh	May 2021	Dec 2023	Solar
Axio Green LLC	Altus Power America Management, LLC	Greenfield Township, MA	2 GWh	May 2012	Dec 2023	Solar
Ayers Island	Central Rivers Power NH, LLC	Bristol, NH	54 GWh	Jul 1925	Dec 2023	Water
Ayers Village Solar	Altus Power America Management, LLC	Methuen, MA	3 GWh	May 2014	Dec 2023	Solar
Aziscohos Hydroelectric Project	Brookfield White Pine Hydro LLC	Wilson Mills, ME	39 GWh	May 1988	Dec 2023	Water
Backus Microgrid Project	Connecticut Mun Elec Engy Coop	Norwich, CT	937 MWh	Jul 2014	Sep 2024	Distillate Fuel Oil
Baldwin	Maine DG Solar Baldwin, LLC	West Baldwin, ME	9 GWh	Feb 2022	Dec 2023	Solar
Ball Mountain Hydro	Eagle Creek Renewable Energy, LLC	Jamaica, VT	2 GWh	Mar 2016	Nov 2023	Water
Barefoot Solar	Madison Energy Investments LLC	Fairfiled, ME	4 GWh	Nov 2022	Dec 2023	Solar
Barker Lower	KEI (Maine) Power Management (III) LLC	Auburn, ME	8 GWh	Mar 1986	Dec 2023	Water
Barnstable Landfill	Clean Focus Yield, LLC	Marstons Mills, MA	5 GWh	Aug 2014	Dec 2023	Solar
Barre II Solar Project	Kearsarge Solar LLC	Barre, MA	2 GWh	Mar 2014	Dec 2023	Solar
Barre Solar III LLC	AES Distributed Energy	Barre, MA	1 GWh	Feb 2018	Dec 2023	Solar
Barrett Farm Solar - Phase I	Onyx Asset Services Group	Thompson, CT	3 GWh	Sep 2017	Dec 2023	Solar
Barrett PV	MN8 Energy LLC	Oxford, MA	17 GWh	Oct 2016	Dec 2023	Solar
Barrow Solar	Ecos Energy LLC	Somers, CT	3 GWh	May 2021	Dec 2023	Solar
Barton Acres Solar, LLC CSG	38 Degrees North, LLC	Phillipston, MA	2 GWh	Sep 2017	Dec 2023	Solar
Barton Solar Farm	Barton Solar, LLC	Barton, VT	2 GWh	Oct 2014	Dec 2023	Solar
Bashaw Solar CSG 1, LLC	Bashaw Solar 1, LLC	Newbury, MA	7 GWh	Mar 2017	Dec 2023	Solar
Battle Creek Solar	Ecos Energy LLC	Bennington, VT	4 GWh	Sep 2018	Dec 2023	Solar
BD Solar Ellsworth LLC	BD Solar Hancock North LLC	Augusta, ME	2 GWh	May 2022	Dec 2023	Solar
BD Solar Hancock LLC	BD Solar Hancock LLC	Augusta, ME	6 GWh	May 2022	Mar 2023	Solar
Beacon Solar, LLC	Beacon Solar, LLC	Easthampton, MA	4 GWh	Oct 2022	Dec 2023	Solar
Beaver Ridge Wind	CPV Beaver Ridge Wind LLC	Freedom, ME	10 GWh	Oct 2008	Dec 2023	Wind
Becton Canaan	DG Northeast 1, LLC	North Canaan, CT	3 GWh	Feb 2018	Dec 2023	Solar
Belchertown	Altus Power America Management, LLC	Belchertown, MA	1 GWh	Nov 2015	Dec 2023	Solar
Belchertown Renewables Community Solar	Belchertown Renewables, LLC	Belchertown, MA	6 GWh	Feb 2018	Dec 2023	Solar
Beldens	Green Mountain Power Corp	New Haven, VT	19 GWh	Jul 1913	Dec 2023	Water
Bellingham Cogeneration Facility	Northeast Energy Associates LP	Bellingham, MA	102 GWh	Aug 1991	Nov 2023	Natural Gas : 88.2% Distillate Fuel Oil : 11.8%
Bellingham PV	Terraform Arcadia	Douglas, MA	4 GWh	Sep 2013	Dec 2023	Solar
Bellows Falls	Great River Hydro, LLC	Bellow Falls, VT	305 GWh	Feb 1928	Dec 2023	Water
Benton Falls Associates	Essex Hydro Associates LLC	Benton, ME	17 GWh	Nov 1987	Dec 2023	Water
Berkley	Captona Berkley LLC	Berkley, MA	4 GWh	Mar 2017	Dec 2023	Solar
Berkley East Solar LLC	SunEdison LLC	Berkley, MA	5 GWh	Jun 2013	Dec 2023	Solar
Berkshire 1	PPS Berkshire Solar LLC	Sheffield, MA	2 GWh	Nov 2011	Dec 2023	Solar
Berkshire Power	Berkshire Power Co LLC	Agawam, MA	70 GWh	Aug 1999	Dec 2023	Natural Gas
Berkshire Wind Power Project	Massachusetts Mun Wholes Electric Co	Lanesboro, MA	30 GWh	Apr 2011	Sep 2024	Wind
Berlin 5	Green Mountain Power Corp	Berlin, VT	1 GWh	May 1972	Sep 2024	Kerosene
Berlin Gorham	Great Lakes Hydro America LLC	Berlin, NH	168 GWh	Dec 1913	Dec 2023	Water
Beverly	Integrys MA Solar, LLC	Beverly, MA	3 GWh	Apr 2014	Dec 2023	Solar
Big George PV CSG	Altus Power America Management, LLC	Plymouth, MA	1 GWh	Aug 2018	Dec 2023	Solar
Billings Road	Greenbacker Renewable Energy Corporation	Hardwick, VT	2 GWh	Oct 2021	Dec 2023	Solar
Bingham Wind	Onward Energy	Bingham, ME	428 GWh	Nov 2016	Sep 2024	Wind
Bird Machine Solar Farm	Bird Machine Solar Farm, LLC	South Walpole, MA	6 GWh	Jul 2017	Dec 2023	Solar
BJ's Wholesale Club, Inc- Uxbridge	Tesla Inc.	Uxbridge, MA	496 MWh	Jun 2017	Dec 2023	Solar
Blackhorse Farm Solar, LLC CSG	AES Distributed Energy	Warren, RI	6 GWh	Nov 2020	Dec 2023	Solar
Blacksmith Road Solar 1	Blacksmith Road Solar 1, LLC	Falmouth, MA	8 GWh	Nov 2021	Dec 2023	Solar
Blackstone/Tupperware	Blackstone Hydro Inc.	North Smithfield, RI	4 GWh	Dec 1980	Sep 2024	Water
Blair Solar	Ecos Energy LLC	Somers, CT	2 GWh	Dec 2020	Dec 2023	Solar
Blair Wire Village Solar, LLC CSG	38 Degrees North, LLC	Spencer, MA	2 GWh	Nov 2017	Dec 2023	Solar
Block Island Wind Farm	Deepwater Wind Block Island LLC	NA, RI	95 GWh	Nov 2016	Sep 2024	Wind
Blodgett Solar CSG	Blodgett Street Solar 1, LLC	Tyngsboro, MA	9 GWh	Jul 2021	Dec 2023	Solar
BlueWave Capital - Grafton (SREC II)	TerraForm Solar XVII, LLC	Grafton, MA	2 GWh	Feb 2015	Dec 2023	Solar
Boatlock	City of Holyoke Gas and Electric Dept.	Holyoke, MA	21 GWh	Dec 1920	Dec 2023	Water
Bolton PV	AES Distributed Energy	Bolton, MA	7 GWh	Nov 2013	Dec 2023	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	906.2 GWh	4
#25	Dominion Energy South Carolina, Inc.	26.0 TWh	85
#13	Duke Energy Carolinas	111.5 TWh	556
#17	Duke Energy Progress East	63.3 TWh	554
#51	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.2 TWh	20
#12	New York Independent System Operator	129.7 TWh	1,100
#1	PJM Interconnection, LLC	844.3 TWh	2,305
#31	South Carolina Public Service Authority	18.1 TWh	33
#60	Southeastern Power Administration	1.6 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#7	California Independent System Operator	191.3 TWh	1,943
#9	Tennessee Valley Authority	158.1 TWh	170
#10	Florida Power & Light Co.	147.2 TWh	159
#12	New York Independent System Operator	129.7 TWh	1,100
#13	Duke Energy Carolinas	111.5 TWh	556
#15	ISO New England	103.6 TWh	1,487
#16	Bonneville Power Administration	80.1 TWh	158
#17	Duke Energy Progress East	63.3 TWh	554
#18	Salt River Project Agricultural Improvement and Power District	58.9 TWh	45
#19	PacifiCorp East	53.1 TWh	204