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 Jul 2026
Annual Generation 111.1 TWh
Power Plants1,629
Utilities833
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 | 54.9% Nuclear | 25% Wind | 5.1% Water | 4.5% Other Fuel | 4.4% Solar | 1.6% Coal | 0.1%

Map of ISO New England

Register Now for Comprehensive Access

Subscribe now to access all power plant data, utility information, FERC EQR data, and more for ISO New England.

Create Your Account Today

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

List of All ISO New England Power Plants

Displaying Results 1,301 to 1,367 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
NE Renewable Fitchburg, LLCNE Renewable Fitchburg, LLCWestminster, MA79 GWhJul 1992Dec 2025 Wood/Wood Waste Solids : 98.7% Natural Gas : 1.3%
WestminsterMN8 Energy LLCWestminster, VT2 GWhNov 2016Dec 2025 Solar
Weston Landfill SolarAmeresco, Inc - WestonWeston, MA3 GWhFeb 2016Dec 2025 Solar
Westport MA 2 Community SolarNavisun LLCWestport, MA2 GWhAug 2016Dec 2025 Solar
Westport MA 1 Community SolarNavisun LLCWestport, MA2 GWhAug 2016Dec 2025 Solar
Brookwood Drive Community SolarAES Distributed EnergyWestport, MA5 GWhJul 2022Dec 2025 Solar
Pine Hill WestportGreenbacker Renewable Energy CorporationWestport, MA3 GWhMay 2025Dec 2025 Solar
Westport B Community Solar GardenBWC Hamilton Brook LLCWestport, MA8 GWhOct 2018Dec 2025 Solar
Adirondack A+B Community Solar GardenBWC Connecticut River LLCWestport, MA8 GWhNov 2018Dec 2024 Solar
Westport (MA)Sunrise on Drift Rd. LLCWestport, MA4 GWhSep 2020Dec 2024 Solar
Westport Community Solar GardenBWC Bass River LLCWestport, MA4 GWhJun 2017Dec 2024 Solar
Westport Stone & Sand Solar (CSG)AES Clean EnergyWestport, MA7 GWhFeb 2024Dec 2025 Solar
Westtown CSGAltus Power America Management, LLCWesttown, NY3 GWhApr 2019Dec 2025 Solar
Huntington FallsGreen Mountain Power CorpWeybridge, VT12 GWhSep 1988Dec 2025 Water
WeybridgeGreen Mountain Power CorpWeybridge, VT10 GWhJan 1951Dec 2025 Water
Fairview Farms SolarNuGen Capital ManagementWhately, MA3 GWhMay 2014Dec 2025 Solar
Whately SolarCitizens Enterprises CorporationWhately, MA2 GWhFeb 2013Dec 2025 Solar
Whatley RenewablesWhatley Renewables, LLCWhatley, MA2 GWhSep 2020Dec 2025 Solar
Long Plain SolarLong Plain Solar, LLCWhatley, MA4 GWhNov 2019Dec 2025 Solar
LR Wheatfield Solar 1LR Wheatfield Solar 1, LLCWheatfield, NY8 GWhSep 2020Dec 2025 Solar
Deweys MillGreen Mountain Power CorpWhite River Jct., VT2 GWhMay 1989Dec 2025 Water
NE Renewable Whitefield, LLCNE Renewable Whitefield, LLCWhitefield, NH59 GWhFeb 1988Dec 2025 Wood/Wood Waste Solids
HarrimanGreat River Hydro, LLCWhitingham, VT98 GWhApr 1924Dec 2025 Water
NEDC Solar SiteMassachusetts Electric CoWhitinsville, MA953 MWhMay 2010Dec 2025 Solar
Syncarpha Northbridge I Hybrid(CSG)Syncarpha Northbridge I, LLCWhitinsville, MA8 GWhNov 2021Dec 2025 Solar
Syncarpha Northbridge II Hybrid CSGSyncarpha Northbridge II, LLCWhitinsville, MA8 GWhMar 2021Dec 2025 Solar
Three Rivers Solar LLCASD Three Rivers Road MA Solar LLCWilbraham, MA154 MWhOct 2024Dec 2024 Solar
WilbrahamBWC East Brook, LLCWilbraham, MA6 GWhNov 2020Dec 2025 Solar
ZPD-PT Solar Project 2017-021 LLC HybridAES Distributed EnergyWilbraham, MA2 GWhDec 2020Dec 2025 Solar
West Haydenville PJ Community SolarAES Distributed EnergyWilliamsburg, MA9 GWhAug 2022Dec 2025 Solar : 99.8%
Williams College - Campus CHPPresident & Trustees of Williams CollegeWilliamstown, MA3 GWhFeb 2003Dec 2025 Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
Williamstown SolarCVI CleanCapital Solar 1 LLCWilliamstown, VT2 GWhNov 2012Dec 2025 Solar
GMP Solar - WilliamstownGreen Mountain Power CorpWilliamstown, VT7 GWhNov 2016May 2026 Solar
GMP Solar - WillistonGreen Mountain Power CorpWilliston, VT6 GWhOct 2016May 2026 Solar
Kearsarge WilmingtonKearsarge Wilmington LLCWilmington, MA2 GWhNov 2017Dec 2025 Solar
Wilmington SolarMN8 Energy LLCWilmington, MA2 GWhOct 2015Dec 2025 Solar
Aziscohos Hydroelectric ProjectBrookfield White Pine Hydro LLCWilson Mills, ME30 GWhMay 1988Dec 2025 Water
Pleasant StreetGreenbacker Renewable Energy CorporationWilton, ME5 GWhNov 2023Dec 2025 Solar
Happy Hollow CSG HybridREA Investments, LLCWinchendon, MA9 GWhSep 2019Dec 2024 Solar
580 River SolarNuGen Capital ManagementWinchendon, MA4 GWhAug 2018Dec 2025 Solar
Winchendon Landfill SolarOnyx Asset Services GroupWinchendon, MA3 GWhSep 2018Dec 2024 Solar
Winchendon SolarAltus Power America Management, LLCWinchendon, MA3 GWhMar 2014Dec 2025 Solar
Platt HillLSE Pictor LLCWinchester, CT3 GWhDec 2021Dec 2025 Solar
Scotland DamFirstLight Power Resources Services LLCWindham, CT4 GWhDec 1936Dec 2025 Water
Roosevelt TrailMadison Energy Investments LLCWindham, ME1 GWhNov 2024Dec 2025 Solar
Algonquin Windsor LocksAhlstrom Power Windsor Locks LLCWindsor Locks, CT147 GWhDec 1989May 2026 Natural Gas : 92.2% Distillate Fuel Oil : 7.8%
Bradley Energy CenterAmeresco Select IncWindsor Locks, CT11 GWhOct 2002Dec 2025 Natural Gas
Rainbow (CT)Farmington River Power CompanyWindsor, CT22 GWhNov 1925May 2026 Water
Amazon BDL4Telyon AMZ Windsor LLCWindsor, CT4 GWhDec 2024Dec 2025 Solar
Rollins Wind ProjectEvergreen Wind, LLCWinn Village, ME147 GWhJun 2011Dec 2025 Wind
Chace Mill Winooski OneCity of Burlington Electric - (VT)Winooski, VT17 GWhMar 1993Dec 2025 Water
Hydro Kennebec ProjectHydro Kennebec LLCWinslow, ME37 GWhDec 1988Nov 2025 Water
Winslow PV - BD Solar 2 LLCBD Solar 2 LLCWinslow, ME10 GWhJun 2022Dec 2025 Solar
Deer Island Treatment PlantMassachusetts Wtr Rauth-Deer IWinthrop, MA33 GWhJul 1995May 2026 Other Biomass Gas : 82.5% Distillate Fuel Oil : 13.1% Wind : 2.7% Solar : 1.8%
Cenergy - Wiscasset (CSG)Luminace Sunbeam Development Holdings, LLCWiscasset, ME8 GWhJun 2023Dec 2025 Solar
WoburnGreenbacker Renewable Energy CorporationWoburn, MA2 GWhNov 2020Dec 2025 Solar
Richmond NMCAAES Distributed EnergyWood River Junction, RI6 GWhNov 2018May 2026 Solar
UI RCP Woodbridge FCUnited Illuminating CoWoodbridge, CT17 GWhNov 2016Dec 2025 Natural Gas
Park SolarEcos Energy LLCWoodbridge, CT1 GWhNov 2023Dec 2025 Solar
ME-EDFR-Phase I-WoolwichGreen Mile Solar, LLCWoolwich, ME8 GWhAug 2023Dec 2025 Solar
Norton Powerhouse 2Norton Powerhouse 2Worcester, MA29 GWhOct 2022Dec 2025 Natural Gas
Clark UniversityClark UniversityWorcester, MA4 GWhDec 2012Dec 2025 Natural Gas
Worcester LandfillCity of Worcester DPW - (MA)Worcester, MA8 GWhApr 2017Dec 2025 Solar
Univ of Massachusetts Medical CenterUniversity of Massachusetts MedicalWorcester, MA63 GWhMar 1974Dec 2025 Natural Gas : 99.3% Distillate Fuel Oil : 0.6%
International Paper Woronoco MillEagle Creek Renewable Energy, LLCWoronoco, MA7 GWhDec 1912Dec 2025 Water
Franklin 1CD US Solar MT 2 LLCWrentham, MA4 GWhOct 2013Dec 2025 Solar
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME339 GWhDec 1956May 2026 Residual Fuel Oil : 99.6%

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator169.4 TWh2,135
#9Tennessee Valley Authority163.4 TWh207
#10Florida Power & Light Co.152.2 TWh187
#12New York Independent System Operator134.3 TWh1,299
#13Duke Energy Carolinas112.6 TWh577
#15ISO New England111.1 TWh1,629
#16Bonneville Power Administration91.6 TWh167
#17Duke Energy Progress East64.5 TWh565
#18PacifiCorp East60.9 TWh222
#19Salt River Project Agricultural Improvement and Power District60.3 TWh49