ISO New England

Balancing Authority Summary Information

ISO New England is ranked #15 out of 64 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 Oct 2026
Annual Generation 112.2 TWh
Power Plants1,667
Utilities846
Ranked #15 out of 64 in terms of net annual generation
Ranked #10 out of 53 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 54% Nuclear | 25.3% Wind | 5.7% Water | 4.6% Other Fuel | 4.5% Solar | 1.6% Coal | 0%

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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 101 to 200 of 1,387
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
New Haven SteamGeneration Bridge II Connecticut, LLCNew Haven, CT141 GWhJun 1975Jul 2026 Residual Fuel Oil : 53.7% Natural Gas : 31.8% Distillate Fuel Oil : 12.3% Kerosene : 2.3%
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990Jul 2026 Nuclear
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA133 GWhOct 1981Jul 2026 Distillate Fuel Oil : 73.3% Natural Gas : 26.7%
Farmington SolarFarmington Solar, LLCFarmington, ME127 GWhSep 2021Jul 2026 Solar
Quinebaug SolarQuinebaug Solar, LLCCanterbury, CT76 GWhNov 2021Jul 2026 Solar
NBC Field's Point Wind FarmNarragansett Bay CommissionProvidence, RI7 GWhSep 2012Jul 2026 Wind
Framingham State University PlantFramingham State UniversityFramingham, MA48 MWhMay 1974Jul 2026 Solar : 62.5% Distillate Fuel Oil : 37.5%
UI RCP Bridgeport SeasideUnited Illuminating CoBridgeport, CT18 GWhOct 2015Jul 2026 Natural Gas : 85.3% Solar : 14.7%
UI RCP New Haven Fuel CellUnited Illuminating CoNew Haven, CT21 GWhJul 2015Jul 2026 Natural Gas
GMP Solar - Panton HybridGreen Mountain Power CorpPanton, VT8 GWhNov 2016Jul 2026 Solar
Essex Junction 19Green Mountain Power CorpEssex Junction, VT36 GWhDec 1916Jul 2026 Water : 99.0% Distillate Fuel Oil : 1.0%
GMP Solar - RichmondGreen Mountain Power CorpRichmond, VT3 GWhSep 2016Jul 2026 Solar
Rainbow (CT)Farmington River Power CompanyWindsor, CT19 GWhNov 1925Jul 2026 Water
Deerfield Wind LLCAvangrid Power LLCSearsburg, VT94 GWhNov 2017Jul 2026 Wind
Antrim WindAntrim Wind Energy LLCAntrim, NH79 GWhNov 2019Jul 2026 Wind
Salem Harbor Power Development LPSalem Harbor Power Development LPSalem, MA1 TWhApr 2018Jul 2026 Natural Gas
Berlin 5Green Mountain Power CorpBerlin, VT1 GWhMay 1972Jul 2026 Kerosene
MillstoneDominion Energy Nuclear Conn IncWaterford, CT17 TWhNov 1975Jul 2026 Nuclear
Bridgeport StationGeneration Bridge II Connecticut, LLCBridgeport, CT3 TWhJul 1961Jul 2026 Natural Gas : 84.6% Distillate Fuel Oil : 15.4%
Exelon West Medway II LLCConstellation Power, IncMedway, MA231 GWhFeb 2019Jul 2026 Natural Gas : 94.7% Kerosene : 5.3%
CanalCanal Generating LLCSandwich, MA467 GWhMay 1968Jul 2026 Residual Fuel Oil : 59.3% Natural Gas : 28.9% Distillate Fuel Oil : 11.7%
J C McNeilCity of Burlington Electric - (VT)Burlington, VT189 GWhMay 1984Jul 2026 Wood/Wood Waste Solids : 99.6%
Kendall Square StationKendall Green Energy, LLCCambridge, MA1 TWhMay 1949Jul 2026 Natural Gas : 97.3% Distillate Fuel Oil : 2.7%
Spring Hill RoadAES Distributed EnergyBarre, MA306 MWhNov 2015Jul 2026 Solar
MerrimackGranite Shore PowerBow, NH32 GWhNov 1960Jul 2026 Bituminous Coal : 92.8% Jet Fuel : 7.1%
SchillerGranite Shore PowerPortsmouth, NH561 MWhSep 1952Jul 2026 Jet Fuel
GMP Solar - WilliamstownGreen Mountain Power CorpWilliamstown, VT7 GWhNov 2016Jul 2026 Solar
Manchester StreetManchester Street, LLC.Providence, RI2 TWhAug 1995Jul 2026 Natural Gas : 92.5% Distillate Fuel Oil : 7.5%
AscutneyGreen Mountain Power CorpWeatherfield, VT406 MWhJul 1961Jul 2026 Distillate Fuel Oil
GMP Solar - WillistonGreen Mountain Power CorpWilliston, VT6 GWhOct 2016Jul 2026 Solar
GMP Solar - HartfordGreen Mountain Power CorpHartford, VT7 GWhNov 2016Jul 2026 Solar
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME323 GWhDec 1956Jul 2026 Residual Fuel Oil : 99.6%
Southbridge SolarAES Distributed EnergySouthbridge, MA2 GWhFeb 2016Jul 2026 Solar
WED Green Hill, LLCWED Green Hill, LLCJohnston, RI6 GWhDec 2018Jun 2026 Wind
Middlebury CollegeMiddlebury College BiomassMiddlebury, VT2 GWhDec 1979Jun 2026 Wood/Wood Waste Solids : 58.5% Natural Gas : 41.5%
WED Shun I, LLCWED Shun I, LLCJohnston, RI7 GWhDec 2018Jun 2026 Wind
Stafford Hill Solar HybridGreen Mountain Power CorpRutland, VT355 MWhFeb 2015Jun 2026 Solar
Wind Colebrook SouthWind Colebrook SouthColebrook, CT11 GWhOct 2015Jun 2026 Wind
WED Coventry 2WED Coventry Two, LLCCoventry, RI9 GWhJul 2016Jun 2026 Wind
Medway GridMedway Grid LLCMedway, MA18 GWh-Jun 2026 Electricity used for energy storage
Medtronic - New Haven 2Bloom EnergyNorth Haven, CT17 GWhSep 2020Dec 2025 Natural Gas
Medtronic - New HavenBloom EnergyNorth Haven, CT18 GWhSep 2020Dec 2025 Natural Gas
Equinix - BillericaBloom EnergyBillerica, MA14 GWhAug 2021Dec 2025 Natural Gas
WoburnGreenbacker Renewable Energy CorporationWoburn, MA2 GWhNov 2020Dec 2025 Solar
Charlemont AAgilitas Energy, Inc.Charlemont, MA3 GWhAug 2021Dec 2025 Solar
Fairhaven EAgilitas Energy, Inc.Fairhaven, MA3 GWhJul 2021Dec 2025 Solar
Barrow SolarEcos Energy LLCSomers, CT3 GWhMay 2021Dec 2025 Solar
Indian River HydroEagle Creek Renewable Energy, LLCRussell, MA2 GWhNov 1909Dec 2025 Water
Gorham Solar 1 (CSG)CleanCapital HoldingsGorham, ME7 GWhOct 2023Dec 2025 Solar
MacKinnon SolarEcos Energy LLCRutland, VT3 GWhJul 2021Dec 2025 Solar
McHenry SolarEcos Energy LLCHampton, CT2 GWhSep 2021Dec 2025 Solar
MA CS Uxbridge Community SolarMA CS Uxbridge, LLCUxbridge, MA7 GWhJan 2023Dec 2025 Solar
BWC Maces Pond LLCNavisun LLCRockport, ME4 GWhNov 2021Dec 2025 Solar
Howard Lane SolarNJR Clean Energy Ventures CorporationGlocester, RI2 GWhAug 2023Dec 2025 Solar
Hartland SolarMadison Energy Holdings LLCHartland, ME7 GWhNov 2021Dec 2025 Solar
Unity SolarMadison Energy Holdings LLCUnity, ME7 GWhNov 2021Dec 2025 Solar
GD Johnson Scituate I, LLCGD Johnson Scituate I, LLCCranston, RI6 GWhNov 2021Dec 2025 Solar
GDIM 1, LLCGDIM 1, LLCNorth Smithfield, RI15 GWhNov 2021Dec 2025 Solar
GDIM 2, LLCGDIM 2, LLCNorth Smithfield, RI13 GWhNov 2021Dec 2025 Solar
GDIM 3, LLCGDIM 3, LLCNorth Smithfield, RI15 GWhNov 2021Dec 2025 Solar
GDIM 4, LLCGDIM 4, LLCNorth Smithfield, RI14 GWhNov 2021Dec 2025 Solar
Green Providence Wind I, LLCGreen Providence Wind I, LLCProvidence, RI2 GWhNov 2021Dec 2025 Wind
Green Providence Wind II, LLCGreen Providence Wind II, LLCProvidence, RI5 GWhNov 2021Dec 2025 Wind
Baldwin (ME)Maine DG Solar Baldwin, LLCWest Baldwin, ME10 GWhFeb 2022Dec 2025 Solar
AugustaMaine DG Solar Augusta, LLCAugusta, ME5 GWhFeb 2022Dec 2025 Solar
MonmouthMaine DG Solar Monmouth, LLCMonmouth, ME9 GWhFeb 2022Dec 2025 Solar
NolanLSE Crater LLCGreat Barrington, MA1 GWhOct 2017Dec 2025 Solar
Truck StopLSE Corona Austrina LLCWest Stockridge, MA3 GWhOct 2017Dec 2025 Solar
Bradford SolarBradford Solar, LLCHaverhill, MA7 GWhMar 2017Dec 2025 Solar
Whatley RenewablesWhatley Renewables, LLCWhatley, MA2 GWhSep 2020Dec 2025 Solar
Wachusett SolarWachusett Solar, LLCRutland, MA3 GWhJul 2019Dec 2025 Solar
ER Sand HillAltus Power America Management, LLCCastleton, VT3 GWhOct 2022Dec 2025 Solar
Dartmouth Farms SolarDartmouth Farms Solar, LLCDartmouth, MA4 GWhOct 2017Dec 2025 Solar
Foster SolarFoster Solar, LLCNorth Scituate, RI2 GWhJul 2016Dec 2025 Solar
MA-Dighton-AMA CS Dighton, LLCDighton, MA6 GWhMay 2024Dec 2025 Solar
Brockelman Road Solar 2Brockelman Road Solar 2, LLCLancaster, MA2 GWhJul 2021Dec 2025 Solar
TES RowtierSkyHigh 2 SolarWestminster, MA10 GWhMar 2021Dec 2025 Solar
Southington Solar OneDG Connecticut III, LLCSouthington, CT9 GWhJan 2022Dec 2025 Solar
Faunce Corner Community SolarFaunce Corner Road Dartmouth Solar 1, LLCDartmouth, MA2 GWhJun 2022Dec 2025 Solar
VenturaVentura Drive Dartmouth Solar 1, LLCDartmouth, MA2 GWhMay 2022Dec 2025 Solar
Kearsarge Ludlow LLCKearsarge Ludlow LLCLudlow, MA6 GWhNov 2020Dec 2025 Solar
Kearsarge AcushnetKearsarge Acushnet LLCAcushnet, MA3 GWhJan 2020Dec 2025 Solar
Long Plain SolarLong Plain Solar, LLCWhatley, MA4 GWhNov 2019Dec 2025 Solar
Settlers SolarSettlers Solar, LLCLunenberg, MA7 GWhNov 2020Dec 2025 Solar
Griffin Road Solar 2Griffin Road Solar 2, LLCCharlton, MA2 GWhMay 2020Dec 2025 Solar
Woodland Avenue Solar 1Woodland Avenue Solar 1, LLCSeekonk, MA9 GWhJul 2020Dec 2025 Solar
RT405 Westerlo Solar 2RT405 Westerlo Solar 2, LLCAlbany, NY8 GWhFeb 2020Dec 2025 Solar
Webster SolarWebster Solar, LLCWebster, MA1 GWhNov 2017Dec 2025 Solar
LR Wheatfield Solar 1LR Wheatfield Solar 1, LLCWheatfield, NY8 GWhSep 2020Dec 2025 Solar
Pendleton Solar 1Pendleton Solar 1, LLCLockport, NY7 GWhSep 2020Dec 2025 Solar
Centech Gas GeneratorTown of Shrewsbury - (MA)Shrewsbury, MA428 MWhMar 2019Dec 2025 Natural Gas
Cream Street SolarCream Street Solar, LLCHyde Park, NY4 GWhNov 2020Dec 2025 Solar
Little Falls SolarLittle Falls SolarLittle Falls, NY3 GWhSep 2020Dec 2025 Solar
Little Falls Solar 1Little Falls Solar 1, LLCLittle Falls, NY3 GWhAug 2020Dec 2025 Solar
Burlington Solar 1DG Connecticut III, LLCBurlington, CT6 GWhJan 2022Dec 2025 Solar
1639 RT 29 Solar 11639 RT 29 Solar 1, LLCGloversville, NY7 GWhNov 2020Dec 2025 Solar
1639 RT 29 Solar 21639 RT 29 Solar 2, LLCGloversville, NY4 GWhNov 2020Dec 2025 Solar
Easton CSG 1 LLCEaston CSG 1 LLCEaston, ME6 GWhJan 2024Dec 2025 Solar
Limestone CSG 1 LLCLimestone CSG 1 LLCLimestone, ME6 GWhNov 2024Dec 2025 Solar
Limestone CSG 2 LLCLimestone CSG 2 LLCLimestone, ME5 GWhOct 2024Dec 2025 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator168.7 TWh2,170
#9Tennessee Valley Authority166.2 TWh209
#10Florida Power & Light Co.153.0 TWh188
#12New York Independent System Operator134.1 TWh1,334
#13Duke Energy Carolinas113.4 TWh578
#15ISO New England112.2 TWh1,667
#16Bonneville Power Administration91.1 TWh170
#17Duke Energy Progress East66.2 TWh574
#18PacifiCorp East61.4 TWh223
#19Salt River Project Agricultural Improvement and Power District60.5 TWh51