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 AuthorityISO New England
States Connecticut Maine Massachusetts New Hampshire New York Rhode Island Vermont
Last Update Nov 2025
Annual Generation 105.5 TWh
Power Plants1,577
Utilities819
Ranked #15 out of 65 in terms of net annual generation
Ranked #11 out of 53 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 55.8% Nuclear | 26% Water | 5% Other Fuel | 4.4% Wind | 4% Solar | 1.5% Coal | 0.4%

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

List of All ISO New England Power Plants

Displaying Results 1 to 100 of 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
A Street 1Captona A Street 1 Johnston LLCJohnston, RI2 GWhNov 2018Dec 2024 Solar
A Street 2Captona A Street 2 Johnston LLCJohnston, RI3 GWhNov 2018Dec 2024 Solar
ActonActon H Road Solar 1, LLCActon, ME5 GWhNov 2021Dec 2024 Solar
Acton Solar LandfillHeliovaas LLCActon, MA2 GWhNov 2013Nov 2024 Solar
Acushnet AD MakepeaceCleanCapital HoldingsWareham, MA6 GWhJun 2012Dec 2024 Solar
Acushnet-Braley Road 1CleanCapital HoldingsFreetown, MA2 GWhDec 2012Dec 2024 Solar
Acushnet Hawes Reed RoadCleanCapital HoldingsDartmouth, MA2 GWhJun 2012Dec 2024 Solar
Acushnet- High HillCleanCapital HoldingsDartmouth, MA3 GWhFeb 2013Dec 2024 Solar
Acushnet MA 1Navisun LLCAcushnet, MA2 GWhNov 2023Dec 2024 Solar
Acushnet MA 2 (CSG)Navisun LLCAcushnet, MA1 GWhFeb 2024Dec 2024 Solar
Adams Farm SolarAltus Power America Management, LLCAthol, MA3 GWhSep 2013Dec 2024 Solar
Adams Grove SolarSoCore Energy LLCAdams, MA6 GWhAug 2022Dec 2024 Solar
Adams SolarEcos Energy LLCLebanon, CT2 GWhFeb 2018Dec 2024 Solar
Adirondack A+B Community Solar GardenBWC Connecticut River LLCWestport, MA8 GWhNov 2018Dec 2024 Solar
Advance Stores Company, IncTesla Inc.Enfield, CT1 GWhOct 2014Dec 2024 Solar
Aegean Drive SolarAegean Drive Solar LLCMethuen, MA3 GWhAug 2021Dec 2024 Solar
Agawam SolarCitizens Enterprises CorporationAgawam, MA2 GWhFeb 2012Dec 2024 Solar
AIS Solar ProjectTerraform ArcadiaLeominster, MA3 GWhNov 2016Dec 2024 Solar
Ajax Solar, LLC (MA)Green Street Power PartnersWest Bridgewater, MA4 GWhNov 2017Dec 2024 Solar
ALDI DC 2PowerflexSouth Windsor, CT1 GWhJan 2018Dec 2024 Solar
Alexander Road SolarRPNY Solar 7, LLCBatavia, NY943 MWhJun 2024Dec 2024 Solar
Algonquin Windsor LocksAhlstrom Power Windsor Locks LLCWindsor Locks, CT119 GWhDec 1989Aug 2025 Natural Gas : 99.9%
Alicea Solar Project Hybrid CSGAES Distributed EnergySouthbridge, MA4 GWhNov 2020Dec 2024 Solar
Alton Road SolarRevity Energy LLCBradford, RI24 GWhNov 2019Dec 2024 Solar
Amaterasu LLCAES Distributed EnergyLancaster, MA7 GWhMay 2021Dec 2024 Solar
Amazon BDL3 Solar ProjectSolar Star Prime 1 LLCNew Haven, CT2 GWhSep 2019Dec 2024 Solar
Ameresco Chicopee EnergyAMERESCO Chicopee Energy LLCChicopee, MA9 GWhJan 2004Dec 2024 Landfill Gas
Amherst College Co GenAmherst CollegeAmherst, MA7 GWhOct 2006Dec 2024 Natural Gas
AmoskeagCentral Rivers Power NH, LLCManchester, NH77 GWhJul 1922Dec 2024 Water
Annese Solar Project Hybrid CSGAES Distributed EnergySouthbridge, MA8 GWhNov 2020Dec 2024 Solar
ANP Bellingham Energy ProjectBellingham Power Generation LLCBellingham, MA3 TWhOct 2002Aug 2025 Natural Gas
ANP Blackstone Energy ProjectANP Blackstone Energy Company LLCBlackstone, MA3 TWhMay 2001Aug 2025 Natural Gas
Anson Abenaki HydrosEagle Creek Renewable Energy, LLCMadison, ME116 GWhDec 1949Dec 2024 Water
Antanavica SolarCypress Creek RenewablesLeicester, MA1 GWhJul 2018Dec 2024 Solar
Antares-GRE 314 East Lyme LLCMN8 Energy LLCEast Lyme, CT4 GWhMay 2014Aug 2025 Solar
Antrim WindAntrim Wind Energy LLCAntrim, NH75 GWhNov 2019Aug 2025 Wind
ApolloSunrise on Wing Ln. LLCAcushnet, MA2 GWhAug 2021Dec 2024 Solar
Arctaris Saddleback SolarArctaris Saddleback Solar, LLCDallas Plantation, ME5 GWhOct 2023Dec 2024 Solar
AscutneyGreen Mountain Power CorpWeatherfield, VT228 MWhJul 1961Jun 2025 Distillate Fuel Oil
ASD Cotuit MA Solar LLCASD Cotuit MA Solar LLCSandwich, MA2 GWhOct 2023Dec 2024 Solar
ASD Wallum MA Solar LLC(CSG)ASD Wallum MA Solar LLCDouglas, MA9 GWhDec 2021Dec 2024 Solar
Ashby Duffy CSG Solar FarmLSE Cassiopeia LLCAshby, MA3 GWhNov 2017Dec 2024 Solar
Ashby Solar, LLC CSGAshby Solar, LLCFitchburg, MA3 GWhJun 2018Dec 2024 Solar
Ashland SolarCitizens Enterprises CorporationAshland, MA7 GWhNov 2019Dec 2024 Solar
Athens AT01Nautilus Solar SolutionsAthens, ME7 GWhMay 2022Dec 2024 Solar
Athens EnergyAthens Energy, LLCAthens, ME58 GWhSep 2016Dec 2024 Wood/Wood Waste Solids
Athens RidgeGreenbacker Renewable Energy CorporationAthens, ME4 GWhFeb 2024Dec 2024 Solar
Auburn Solar ProjectAgilitas Energy, Inc.Auburn, MA8 GWhApr 2022Dec 2024 Solar
AugustaMaine DG Solar Augusta, LLCAugusta, ME5 GWhFeb 2022Dec 2024 Solar
Augusta PV - BD Solar Augusta LLCBD Solar Augusta LLCAugusta, ME10 GWhMay 2021Dec 2024 Solar
Augusta Road Bowdoin Solar, LLCREA Investments, LLCBowdoin, ME5 GWhJan 2022Dec 2024 Solar
Axio Green LLCAltus Power America Management, LLCGreenfield Township, MA3 GWhMay 2012Dec 2024 Solar
Ayers IslandCentral Rivers Power NH, LLCBristol, NH40 GWhJul 1925Dec 2024 Water
Ayers Village SolarAltus Power America Management, LLCMethuen, MA3 GWhMay 2014Dec 2024 Solar
Aziscohos Hydroelectric ProjectBrookfield White Pine Hydro LLCWilson Mills, ME36 GWhMay 1988Dec 2024 Water
Backus Microgrid ProjectConnecticut Mun Elec Engy CoopNorwich, CT800 MWhJul 2014Aug 2025 Distillate Fuel Oil
Baldwin (ME)Maine DG Solar Baldwin, LLCWest Baldwin, ME10 GWhFeb 2022Dec 2024 Solar
Ball Mountain HydroEagle Creek Renewable Energy, LLCJamaica, VT61 MWhMar 2016Dec 2024 Water
Barefoot SolarMadison Energy Investments LLCFairfiled, ME7 GWhNov 2022Dec 2024 Solar
Barker LowerKEI (Maine) Power Management (III) LLCAuburn, ME4 GWhMar 1986Dec 2024 Water
Barnstable LandfillClean Focus Yield, LLCMarstons Mills, MA5 GWhAug 2014Dec 2024 Solar
Barre II Solar ProjectKearsarge Solar LLCBarre, MA2 GWhMar 2014Dec 2024 Solar
Barre Solar III LLCAES Distributed EnergyBarre, MA1 GWhFeb 2018Dec 2024 Solar
Barrett Farm Solar - Phase IOnyx Asset Services GroupThompson, CT3 GWhSep 2017Dec 2024 Solar
Barrett PVMN8 Energy LLCOxford, MA20 GWhOct 2016Dec 2024 Solar
Barrow SolarEcos Energy LLCSomers, CT3 GWhMay 2021Dec 2024 Solar
Barton Acres Solar, LLC CSG38 Degrees North, LLCPhillipston, MA2 GWhSep 2017Dec 2024 Solar
Barton Solar FarmBarton Solar, LLCBarton, VT2 GWhOct 2014Dec 2024 Solar
Bashaw Solar CSG 1, LLCBashaw Solar 1, LLCNewbury, MA3 GWhMar 2017Dec 2024 Solar
Bates College SkowheganWestbound Solar 3, LLCSkowhegan, ME8 GWhAug 2023Dec 2024 Solar
Battle Creek SolarEcos Energy LLCBennington, VT3 GWhSep 2018Dec 2024 Solar
BD Solar Ellsworth LLCBD Solar Hancock North LLCAugusta, ME6 GWhMay 2022Dec 2024 Solar
BD Solar Hancock LLCBD Solar Hancock LLCAugusta, ME7 GWhMay 2022Dec 2024 Solar
Beacon Solar, LLCBeacon Solar, LLCEasthampton, MA9 GWhOct 2022Dec 2024 Solar
Beaver Ridge WindCPV Beaver Ridge Wind LLCFreedom, ME10 GWhOct 2008Dec 2024 Wind
Becton CanaanDG Northeast 1, LLCNorth Canaan, CT3 GWhFeb 2018Dec 2024 Solar
BelchertownAltus Power America Management, LLCBelchertown, MA1 GWhNov 2015Dec 2024 Solar
Belchertown Renewables Community SolarBelchertown Renewables, LLCBelchertown, MA6 GWhFeb 2018Dec 2024 Solar
BeldensGreen Mountain Power CorpNew Haven, VT14 GWhJul 1913Dec 2024 Water
Bellingham Cogeneration FacilityNortheast Energy Associates LPBellingham, MA368 GWhAug 1991Dec 2024 Natural Gas : 99.9%
Bellingham PVTerraform ArcadiaDouglas, MA4 GWhSep 2013Dec 2024 Solar
Bellows FallsGreat River Hydro, LLCBellow Falls, VT264 GWhFeb 1928Dec 2024 Water
Benton Falls AssociatesEssex Hydro Associates LLCBenton, ME4 GWhNov 1987Dec 2024 Water
BerkleyCaptona Berkley LLCBerkley, MA4 GWhMar 2017Dec 2024 Solar
Berkley East Solar LLCSunEdison LLCBerkley, MA5 GWhJun 2013Dec 2024 Solar
Berkshire 1PPS Berkshire Solar LLCSheffield, MA2 GWhNov 2011Dec 2024 Solar
Berkshire PowerBerkshire Power Co LLCAgawam, MA573 GWhAug 1999Dec 2024 Natural Gas
Berkshire Wind Power ProjectMassachusetts Mun Wholes Electric CoLanesboro, MA38 GWhApr 2011Aug 2025 Wind
Berlin 5Green Mountain Power CorpBerlin, VT1 GWhMay 1972Aug 2025 Kerosene
Berlin GorhamGreat Lakes Hydro America LLCBerlin, NH133 GWhDec 1913Dec 2024 Water
BeverlyIntegrys MA Solar, LLCBeverly, MA3 GWhApr 2014Dec 2024 Solar
Big George PV CSGAltus Power America Management, LLCPlymouth, MA1 GWhAug 2018Dec 2024 Solar
Billings RoadGreenbacker Renewable Energy CorporationHardwick, VT2 GWhOct 2021Dec 2024 Solar
Bingham WindOnward EnergyBingham, ME488 GWhNov 2016Aug 2025 Wind
Bird Machine Solar FarmBird Machine Solar Farm, LLCSouth Walpole, MA6 GWhJul 2017Dec 2024 Solar
BJ's Wholesale Club, Inc- UxbridgeTesla Inc.Uxbridge, MA270 MWhJun 2017Dec 2024 Solar
Blackhorse Farm Solar, LLC CSGAES Distributed EnergyWarren, RI6 GWhNov 2020Nov 2024 Solar
Blacksmith Road Solar 1Blacksmith Road Solar 1, LLCFalmouth, MA8 GWhNov 2021Dec 2024 Solar
Blackstone/TupperwareBlackstone Hydro Inc.North Smithfield, RI2 GWhDec 1980Jul 2025 Water
Blair SolarEcos Energy LLCSomers, CT2 GWhDec 2020Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.1 TWh2,075
#9Tennessee Valley Authority161.5 TWh204
#10Florida Power & Light Co.148.6 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.7 TWh565
#15ISO New England105.5 TWh1,577
#16Bonneville Power Administration80.5 TWh163
#17Duke Energy Progress East64.2 TWh559
#18PacifiCorp East61.0 TWh216
#19Salt River Project Agricultural Improvement and Power District60.2 TWh48