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 2024
Annual Generation 102.8 TWh
Power Plants1,487
Utilities782
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 | 57.6% Nuclear | 25% Water | 7.7% Other Fuel | 4.6% Wind | 3.3% Solar | 1.2% Coal | 0.1%

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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 1,204
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME26 GWhDec 1956Aug 2024 Residual Fuel Oil : 98.9% Distillate Fuel Oil : 1.1%
Franklin 1CD US Solar MT 2 LLCWrentham, MA4 GWhOct 2013Dec 2023 Solar
International Paper Woronoco MillEagle Creek Renewable Energy, LLCWoronoco, MA6 GWhDec 1912Dec 2023 Water
Worcester LandfillCity of Worcester DPWWorcester, MA9 GWhApr 2017Dec 2023 Solar
Clark UniversityClark UniversityWorcester, MA9 GWhDec 2012Dec 2023 Natural Gas
Univ of Massachusetts Medical CenterUniversity of Massachusetts MedicalWorcester, MA68 GWhMar 1974Dec 2023 Natural Gas : 97.4% Residual Fuel Oil : 2.4%
Norton Powerhouse 2Norton Powerhouse 2Worcester, MA29 GWhOct 2022Dec 2023 Natural Gas
ME-EDFR-Phase I-WoolwichGreen Mile Solar, LLCWoolwich, ME2 GWhAug 2023Dec 2023 Solar
Park SolarEcos Energy LLCWoodbridge, CT20 MWhNov 2023Dec 2023 Solar
UI RCP Woodbridge FCUnited Illuminating CoWoodbridge, CT16 GWhNov 2016Dec 2023 Natural Gas
Richmond NMCAAES Distributed EnergyWood River Junction, RI6 GWhNov 2018Aug 2024 Solar
WoburnGreenbacker Renewable Energy CorporationWoburn, MA2 GWhNov 2020Dec 2023 Solar
Cenergy - Wiscasset (CSG)Luminace Sunbeam Development Holdings, LLCWiscasset, ME3 GWhJun 2023Dec 2023 Solar
Deer Island Treatment PlantMassachusetts Wtr Rauth-Deer IWinthrop, MA38 GWhJul 1995Aug 2024 Other Biomass Gas : 70.5% Distillate Fuel Oil : 16.1% Water : 10.2% Solar : 1.6% Wind : 1.6%
Hydro Kennebec ProjectHydro Kennebec LLCWinslow, ME70 GWhDec 1988Dec 2023 Water
Winslow PV - BD Solar 2 LLCBD Solar 2 LLCWinslow, ME11 GWhJun 2022Dec 2023 Solar
Chace Mill Winooski OneCity of Burlington Electric - (VT)Winooski, VT36 GWhMar 1993Dec 2023 Water
Rollins Wind ProjectEvergreen Wind, LLCWinn Village, ME132 GWhJun 2011Dec 2023 Wind
Rainbow (CT)Farmington River Power CompanyWindsor, CT38 GWhNov 1925Aug 2024 Water
Bradley Energy CenterAmeresco Select IncWindsor Locks, CT13 GWhOct 2002Dec 2023 Natural Gas
Algonquin Windsor LocksAlgonquin Windsor Locks LLCWindsor Locks, CT130 GWhDec 1989Aug 2024 Natural Gas : 99.9%
Scotland DamFirstLight Power Resources Services LLCWindham, CT10 GWhDec 1936Dec 2023 Water
Platt HillLSE Pictor LLCWinchester, CT4 GWhDec 2021Dec 2023 Solar
580 River SolarNuGen Capital ManagementWinchendon, MA4 GWhAug 2018Dec 2023 Solar
Winchendon SolarAltus Power America Management, LLCWinchendon, MA2 GWhMar 2014Dec 2023 Solar
Winchendon Landfill SolarOnyx Asset Services GroupWinchendon, MA3 GWhSep 2018Dec 2023 Solar
Happy Hollow CSG HybridREA Investments, LLCWinchendon, MA8 GWhSep 2019Dec 2023 Solar
Pleasant StreetGreenbacker Renewable Energy CorporationWilton, ME98 MWhNov 2023Dec 2023 Solar
Aziscohos Hydroelectric ProjectBrookfield White Pine Hydro LLCWilson Mills, ME39 GWhMay 1988Dec 2023 Water
Kearsarge WilmingtonKearsarge Wilmington LLCWilmington, MA2 GWhNov 2017Dec 2023 Solar
Wilmington SolarMN8 Energy LLCWilmington, MA3 GWhOct 2015Dec 2023 Solar
GMP Solar - WillistonGreen Mountain Power CorpWilliston, VT7 GWhOct 2016Aug 2024 Solar
Williamstown SolarCVI CleanCapital Solar 1 LLCWilliamstown, VT2 GWhNov 2012Dec 2023 Solar
GMP Solar - WilliamstownGreen Mountain Power CorpWilliamstown, VT7 GWhNov 2016Aug 2024 Solar
Williams College - Campus CHPPresident & Trustees of Williams CollegeWilliamstown, MA2 GWhFeb 2003Dec 2023 Natural Gas : 93.7% Distillate Fuel Oil : 6.3%
West Haydenville PJ Community SolarAES Distributed EnergyWilliamsburg, MA8 GWhAug 2022Dec 2023 Solar
ZPD-PT Solar Project 2017-021 LLC Hybrid CSGAES Distributed EnergyWilbraham, MA2 GWhDec 2020Dec 2023 Solar : 99.8%
WilbrahamBWC East Brook, LLCWilbraham, MA6 GWhNov 2020Dec 2023 Solar
RedbridgeCentral Rivers Power MA, LLCWilbraham, MA18 GWhDec 1925Aug 2023 Water
Collins FacilityElevate Power Management LLCWilbraham, MA7 GWhFeb 1985Dec 2023 Water
NEDC Solar SiteMassachusetts Electric CoWhitinsville, MA878 MWhMay 2010Dec 2023 Solar
Syncarpha Northbridge II Hybrid CSGSyncarpha Northbridge II, LLCWhitinsville, MA8 GWhMar 2021Dec 2023 Solar
Syncarpha Northbridge I Hybrid(CSG)Syncarpha Northbridge I, LLCWhitinsville, MA9 GWhNov 2021Dec 2023 Solar
HarrimanGreat River Hydro, LLCWhitingham, VT126 GWhApr 1924Dec 2023 Water
NE Renewable Whitefield, LLCNE Renewable Whitefield, LLCWhitefield, NH13 GWhFeb 1988Dec 2023 Wood/Wood Waste Solids
Deweys MillGreen Mountain Power CorpWhite River Jct., VT2 GWhMay 1989Dec 2023 Water
LR Wheatfield Solar 1LR Wheatfield Solar 1, LLCWheatfield, NY8 GWhSep 2020Dec 2023 Solar
Whatley RenewablesWhatley Renewables, LLCWhatley, MA2 GWhSep 2020Dec 2023 Solar
Long Plain SolarLong Plain Solar, LLCWhatley, MA3 GWhNov 2019Dec 2023 Solar
Whately SolarCitizens Enterprises CorporationWhately, MA2 GWhFeb 2013Dec 2023 Solar
Fairview Farms SolarNuGen Capital ManagementWhately, MA3 GWhMay 2014Dec 2023 Solar
Huntington FallsGreen Mountain Power CorpWeybridge, VT33 GWhSep 1988Dec 2023 Water
WeybridgeGreen Mountain Power CorpWeybridge, VT16 GWhJan 1951Dec 2023 Water
Westtown CSGAltus Power America Management, LLCWesttown, NY3 GWhApr 2019Dec 2023 Solar
Westport MA 1 Community SolarNavisun LLCWestport, MA2 GWhAug 2016Dec 2023 Solar
Westport MA 2 Community SolarNavisun LLCWestport, MA2 GWhAug 2016Dec 2023 Solar
Brookwood Drive Community SolarAES Distributed EnergyWestport, MA5 GWhJul 2022Dec 2023 Solar
Westport Community Solar GardenBWC Bass River LLCWestport, MA3 GWhJun 2017Dec 2023 Solar
Adirondack A+B Community Solar GardenBWC Connecticut River LLCWestport, MA8 GWhNov 2018Dec 2023 Solar
Westport B Community Solar GardenBWC Hamilton Brook LLCWestport, MA7 GWhOct 2018Dec 2023 Solar
Weston Landfill SolarAmeresco, Inc - WestonWeston, MA3 GWhFeb 2016Dec 2023 Solar
WestminsterMN8 Energy LLCWestminster, VT3 GWhNov 2016Dec 2023 Solar
NE Renewable Fitchburg, LLCNE Renewable Fitchburg, LLCWestminster, MA36 GWhJul 1992Dec 2023 Wood/Wood Waste Solids : 97.6% Natural Gas : 2.4%
Westminster Renewables, LLC CSGWestminster Renewables, LLCWestminster, MA2 GWhSep 2018Dec 2023 Solar
Theodore Drive Community SolarTheodore Drive Solar, LLCWestminster, MA2 GWhFeb 2018Dec 2023 Solar
Syncarpha Westminster Hybrid CSGSyncarpha Westminster, LLCWestminster, MA6 GWhOct 2022Dec 2023 Solar
Fitchburg Gas RecoveryWM Renewable Energy LLCWestminster, MA31 GWhSep 2007Dec 2023 Landfill Gas
TES RowtierSkyHigh 2 SolarWestminster, MA5 GWhMar 2021Dec 2023 Solar
28 Livermore Hill Road Solar28 Livermore Hill Road Solar, LLCWestminster, MA8 GWhMay 2020Dec 2023 Solar
Westford Solar ParkMN8 Energy LLCWestford, MA4 GWhMar 2012Dec 2023 Solar
CED Westfield Solar, LLCConsolidated Edison Development Inc.Westfield, MA3 GWhJul 2016Dec 2023 Solar
GSPP Terrawatt Westfield LLC CSGGreen Street Power PartnersWestfield, MA6 GWhJan 2019Dec 2023 Solar
Twiss Street SolarCitizens Enterprises CorporationWestfield, MA2 GWhDec 2014Dec 2023 Solar
White Rock Road LLCWhite Rock Road LLCWesterly, RI10 GWhNov 2022Dec 2023 Solar
Kearsarge WesterlyKearsarge Westerly LLCWesterly, RI6 GWhNov 2020Dec 2023 Solar
S D Warren WestbrookElevate Power Management LLCWestbrook, ME33 GWhDec 1902Dec 2023 Water
Westbrook Energy Center Power PlantWestbrook Energy CenterWestbrook, ME3 TWhApr 2001Aug 2024 Natural Gas
Westborough Solar LLCSunRay Power LLCWestborough, MA2 GWhMar 2014Dec 2023 Solar
SEMASS Resource RecoverySEMASS PartnershipWest Wareham, MA568 GWhJun 1988Aug 2024 Non-biogenic Municipal Solid Waste : 54.2% Biogenic Municipal Solid Waste : 44.4% Natural Gas : 1.3%
West Tisbury Generating FacilityVineyard Reliability LLCWest Tisbury, MA2 GWhDec 1974Dec 2023 Distillate Fuel Oil
Truck StopStrata Manager, LLCWest Stockridge, MA3 GWhOct 2017Dec 2023 Solar
EHC West HopkintonGreen Mountain Power CorpWest Hopkinton, NH4 GWhJun 1985Dec 2023 Water
GD West Greenwich Victory I, LLCGD West Greenwich Victory I, LLCWest Greenwich, RI3 GWhNov 2019Dec 2023 Solar
West Greenwich SolarConsolidated Edison Development Inc.West Greenwich, RI3 GWhApr 2013Aug 2024 Solar
University Solar, LLCAES Distributed EnergyWest Greenwich, RI28 GWhNov 2019Aug 2024 Solar
Hopkins Hill CSGNautilus Solar SolutionsWest Greenwich, RI11 GWhOct 2020Dec 2023 Solar
GD West Greenwich Nooseneck I, LLCGD West Greenwich Nooseneck I, LLCWest Greenwich, RI28 GWhNov 2022Dec 2023 Solar
Robin Hollow SolarRobin Hollow Solar, LLCWest Greenwich, RI48 GWhNov 2023Aug 2024 Solar
TPE Hopkins Solar Holdings1, LLCNautilus Solar SolutionsWest Greenwhich, RI10 GWhOct 2020Dec 2022 Solar
Harris HydroBrookfield White Pine Hydro LLCWest Forks, ME278 GWhDec 1953Dec 2023 Water
West Enfield HydroBrookfield Black Bear Hydro, LLCWest Enfield, ME100 GWhMar 1988Dec 2023 Water
Indeck West Enfield Energy CenterStored Solar J&WEWest Enfield, ME13 GWhNov 1987Dec 2023 Wood/Wood Waste Solids : 99.7%
West CharlestonBarton Village, IncWest Charleston, VT6 GWhJun 1931Dec 2023 Water
West Brookfield Solar, LLCCVI CleanCapital Solar 7West Brookfield, MA1 GWhDec 2015Dec 2023 Solar
West Brookfield Solar - Gilbertsville Rd (CSG)Nautilus Solar SolutionsWest Brookfield, MA6 GWhMay 2017Dec 2023 Solar
Ajax Solar, LLC (MA)Green Street Power PartnersWest Bridgewater, MA4 GWhNov 2017Dec 2023 Solar
West Bridgewater AB CSGMN8 Energy LLCWest Bridgewater, MA3 GWhMay 2017Dec 2023 Solar
West Boylston Community Shared SolarTown of West Boylston - (MA)West Boylston, MA2 GWhNov 2016Dec 2023 Solar
Oakdale Power StationMassachusetts Water Res AuthWest Boylston, MA12 GWhApr 1951Dec 2023 Water
BaldwinMaine DG Solar Baldwin, LLCWest Baldwin, ME9 GWhFeb 2022Dec 2023 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator191.5 TWh1,943
#9Tennessee Valley Authority157.5 TWh170
#10Florida Power & Light Co.147.7 TWh159
#12New York Independent System Operator130.0 TWh1,100
#13Duke Energy Carolinas110.9 TWh556
#15ISO New England102.8 TWh1,487
#16Bonneville Power Administration80.0 TWh158
#17Duke Energy Progress East63.3 TWh554
#18Salt River Project Agricultural Improvement and Power District59.0 TWh45
#19PacifiCorp East52.6 TWh204