ISO New England

Balancing Authority Summary Information

ISO New England is ranked #14 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 Jun 2025
Annual Generation 103.4 TWh
Power Plants1,561
Utilities814
Ranked #14 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 | 57.1% Nuclear | 24.6% Water | 6.2% Other Fuel | 4.5% Wind | 3.7% Solar | 1.4% 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 101 to 200 of 1,270
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Wells (ME)Nautilus Solar SolutionsWells, ME6 GWhJun 2022Dec 2024 Solar
Wellesley College Central Utility PlantWellesley CollegeWellesley, MA480 MWhMay 1985Dec 2023 Natural Gas
DG Webster LLC CSGDG Webster, LLCWebster, MA2 GWhNov 2017Dec 2023 Solar
Webster SolarWebster Solar, LLCWebster, MA1 GWhNov 2017Dec 2024 Solar
AscutneyGreen Mountain Power CorpWeatherfield, VT192 MWhJul 1961Feb 2025 Distillate Fuel Oil
Messalonskee 5Messalonskee Stream Hydro LLCWaterville, ME3 GWhDec 1934Dec 2024 Water
Lockwood Hydroelectric FacilityMerimil Ltd PartnershipWaterville, ME14 GWhSep 1985Dec 2024 Water
Cenergy - Waterville (CSG)Luminace Sunbeam Development Holdings, LLCWaterville, ME9 GWhJun 2023Dec 2024 Solar
Webb Road SolarNextGrid Mastic, LLCWaterville, ME6 GWhAug 2022Dec 2024 Solar
Watertown Solar One, LLCDG Connecticut III, LLCWatertown, CT3 GWhMay 2021Dec 2024 Solar
Town of HalfmoonTesla Inc.Waterford, NY1 GWhMay 2017Dec 2024 Solar
MillstoneDominion Energy Nuclear Conn IncWaterford, CT17 TWhNov 1975Apr 2025 Nuclear
Waterbury 22Green Mountain Power CorpWaterbury, VT15 GWhMay 1953Dec 2024 Water
MoretownNextEra Renewable Fuels, LLCWaterbury, VT5 GWhNov 2008Dec 2023 Landfill Gas
Waterbury GenerationEngie North AmericaWaterbury, CT44 GWhMay 2009Dec 2024 Natural Gas : 99.8%
WED Kingstown Solar I - East ArrayCleanCapital HoldingsWashington, RI5 GWhNov 2017Dec 2024 Solar
Washington WS01Nautilus Solar SolutionsWashington, ME6 GWhMay 2022Dec 2024 Solar
KilvertCaptona Kilvert Street Warwick LLCWarwick, RI8 GWhNov 2018Dec 2024 Solar
Blackhorse Farm Solar, LLC CSGAES Distributed EnergyWarren, RI6 GWhNov 2020Nov 2024 Solar
Morin Solar 2013 LLCCVI CleanCapital Solar 6Warren, MA5 GWhNov 2013Dec 2024 Solar
Mass Midstate Solar 1Evergreen Wind, LLCWarren, MA7 GWhApr 2014Dec 2024 Solar
Mass Midstate Solar 2Evergreen Wind, LLCWarren, MA7 GWhApr 2014Dec 2024 Solar
Mass Midstate Solar 3Evergreen Wind, LLCWarren, MA6 GWhApr 2014Dec 2024 Solar
Cronin Road Solar 1, LLC CSG HybridAES Distributed EnergyWarren, MA3 GWhMay 2020Dec 2024 Solar
ZPD-PT Solar Project 2017-006 LLC HybridAES Distributed EnergyWarren, MA5 GWhJun 2021Dec 2024 Solar
160 Tihonet Rd Hybrid(CSG)160TIH WHAM8 Solar, LLCWareham, MA10 GWhNov 2021Dec 2023 Solar
299 Farm to Market Rd Hybrid(CSG)299F2M WHAM8 Solar, LLCWareham, MA8 GWhNov 2021Dec 2023 Solar
77 Farm to Market Rd Hybrid(CSG)77F2M WHAM8 Solar, LLCWareham, MA11 GWhNov 2021Dec 2023 Solar
Cranberry Highway Solar LLCCranberry Highway Solar, LLCWareham, MA2 GWhFeb 2021Dec 2024 Solar : 99.2% Electricity used for energy storage : 0.8%
71 Charlotte Furnace Rd Hybrid(CSG)71CFR WHAM8 Solar, LLCWareham, MA7 GWhNov 2021Dec 2023 Solar
Acushnet AD MakepeaceCleanCapital HoldingsWareham, MA6 GWhJun 2012Dec 2024 Solar
Wareham Solar PVNSTAR Electric CompanyWareham, MA1 GWhNov 2018Dec 2024 Solar
Onset West Community Solar FacilityKearsarge Onset LLCWareham, MA2 GWhMar 2016Dec 2024 Solar
BWC Pocasset RiverBWC Pocasset River, LLCWareham, MA2 GWhNov 2018Dec 2024 Solar
BWC Harlow BrookBWC Harlow Brook, LLCWareham, MA2 GWhNov 2018Dec 2024 Solar
BWC Wareham RiverBWC Wareham River, LLCWareham, MA2 GWhNov 2018Dec 2024 Solar
BWC Gibbs BrookBWC Gibbs Brook, LLCWareham, MA6 GWhNov 2018Dec 2024 Solar
Tihonet SolarConsolidated Edison Solutions Inc.Wareham, MA2 GWhApr 2014Dec 2023 Solar
Wareham MA 1 Community SolarNavisun LLCWareham, MA3 GWhAug 2016Dec 2023 Solar
Onset East Community Solar FacilityKearsarge Onset LLCWareham, MA2 GWhMar 2016Dec 2024 Solar
Ware Palmer Road Solar LLC CSGWare Palmer Road Solar LLCWare, MA4 GWhMay 2021Dec 2023 Solar
Town of Ware - Canadian Tree(CSG)MA CS Ware West, LLCWare, MA2 GWhNov 2021Dec 2024 Solar
Dynamic - WalpoleAES Distributed EnergyWalpole, MA3 GWhMay 2017Dec 2024 Solar
Walpole Solar 2Walpole Solar 2, LLCWalpole, MA3 GWhMar 2014Dec 2024 Solar
MHG WallingfordStandard SolarWallingford, VT4 GWhNov 2019Dec 2024 Solar
Wallingford EnergyWallingford Energy LLCWallingford, CT88 GWhJul 2001Dec 2024 Natural Gas
Wallingford SolarWallingford Renewable Energy, LLCWallingford, CT21 GWhAug 2021Dec 2024 Solar
North Nobleboro Road, LLCREA Investments, LLCWaldoboro, ME4 GWhMay 2021Dec 2024 Solar
Mascoma HydroGreen Mountain Power CorpW. Lebanon, NH2 GWhNov 1988Dec 2024 Water
Goodwin HydroelectricMetropolitan Dist of HartfordW. Hartland, CT9 GWhMar 1986Dec 2024 Water
Fox Island Wind LLCFox Island Wind LLCVinalhaven, ME8 GWhOct 2009Dec 2024 Wind
Vernon DamGreat River Hydro, LLCVernon, VT160 GWhJul 1909Dec 2024 Water
Vergennes 9Green Mountain Power CorpVergennes, VT8 GWhDec 1911Dec 2024 Water
Maine Independence StationCasco Bay Energy Co LLCVeazie, ME3 TWhApr 2000Dec 2024 Natural Gas
Palombo Solar, LLC CSG38 Degrees North, LLCUxbridge, MA3 GWhNov 2017Dec 2024 Solar
Kearsarge UxbridgeKearsarge Uxbridge LLCUxbridge, MA3 GWhAug 2018Dec 2024 Solar
Palombo B Solar, LLC CSG38 Degrees North, LLCUxbridge, MA2 GWhNov 2017Dec 2024 Solar
Town of Uxbridge MA at Commerce DrLuminace Solar Net Metering, LLCUxbridge, MA3 GWhMay 2012Dec 2024 Solar
Hurteau Solar Project HybridAES Distributed EnergyUxbridge, MA3 GWhFeb 2020Dec 2024 Solar
BJ's Wholesale Club, Inc- UxbridgeTesla Inc.Uxbridge, MA270 MWhJun 2017Dec 2024 Solar
MA CS Uxbridge Community SolarMA CS Uxbridge, LLCUxbridge, MA7 GWhJan 2023Dec 2024 Solar
Upton Community SolarUpton Solar, LLCUpton, MA3 GWhAug 2017Dec 2024 Solar
Three Corners SolarThree Corners Solar, LLCUnity, ME142 GWhJun 2024Apr 2025 Solar
Unity SolarMadison Energy Holdings LLCUnity, ME8 GWhNov 2021Dec 2024 Solar
Fort Hill 1, 2, 3 & 4Connecticut Mun Elec Engy CoopUncasville, CT520 MWhJul 2010Apr 2025 Distillate Fuel Oil
Montville StationMontville Power LLCUncasville, CT28 GWhDec 1953Dec 2024 Natural Gas : 52.4% Residual Fuel Oil : 46.4% Distillate Fuel Oil : 1.2%
Tyngsborough SolarCitizens Enterprises CorporationTyngsborough, MA4 GWhDec 2016Dec 2024 Solar
Blodgett Solar CSGBlodgett Street Solar 1, LLCTyngsboro, MA10 GWhJul 2021Dec 2024 Solar
Digital FairfieldBloom EnergyTrumbull, CT16 GWhMay 2018Jun 2024 Natural Gas
DusenberryAES Distributed EnergyTroy, NY8 GWhNov 2021Dec 2024 Solar
Weaver WindWeaver Wind, LLC (Longroad)Township 16, ME213 GWhNov 2020Apr 2025 Wind
Johnston SolarConcord New EnergyTown of Johnston, RI2 GWhJun 2015Dec 2024 Solar
Franklin DriveConnecticut Jet Power LLCTorrington, CT118 MWhOct 1968Dec 2024 Kerosene
Torrington TerminalConnecticut Jet Power LLCTorrington, CT146 MWhOct 1967Dec 2024 Kerosene
Torrington Solar One, LLCDG Connecticut III, LLCTorrington, CT3 GWhFeb 2021Dec 2024 Solar
Pejepscot Hydroelectric ProjectTopsham Hydro PartnersTopsham, ME49 GWhOct 1987Dec 2024 Water
Tolland Solar NG LLCNuGen Capital ManagementTolland, MA5 GWhSep 2014Dec 2024 Solar
Tiverton Power PlantTiverton Power LLCTiverton, RI2 TWhFeb 2000Dec 2024 Natural Gas
Kearsarge FoglandKearsarge Fogland LLCTiverton, RI3 GWhOct 2020Dec 2024 Solar
Rhode Island Solar Renewable Energy IV,Rhode Island Solar Renewable Energy IV, LLCTiverton, RI21 GWhNov 2023Dec 2024 Solar
Tisbury Landfill SolarClean Focus Yield, LLCTisbury, MA2 GWhJun 2014Dec 2024 Solar
Lochmere Hydroelectric PlantEagle Creek Renewable Energy, LLCTilton, NH3 GWhNov 1984Dec 2024 Water
Clement Dam Hydro LLCEagle Creek Renewable Energy, LLCTilton, NH9 GWhNov 1984Dec 2024 Water
Barrett Farm Solar - Phase IOnyx Asset Services GroupThompson, CT3 GWhSep 2017Dec 2024 Solar
Syncarpha Tewksbury Hybrid CSGSyncarpha Tewksbury, LLCTewksbury, MA4 GWhJan 2022Dec 2023 Solar
Leominster (MA)-South Street-R&DSouth Street Solar, LLCTewksbury, MA3 GWhNov 2013Dec 2024 Solar
TempletonSunny Templeton, LLCTempleton, MA5 GWhNov 2014Dec 2024 Solar
Cleary Flood HybridCity of TauntonTaunton, MA133 GWhMay 1966Dec 2024 Natural Gas : 99.8%
MM Taunton EnergyMM Taunton Energy LLCTaunton, MA6 GWhAug 1997Dec 2024 Landfill Gas
West Water StreetCity of TauntonTaunton, MA2 GWhDec 2017Dec 2024 Distillate Fuel Oil
White LakeGranite Shore PowerTamworth, NH552 MWhJun 1968Dec 2023 Jet Fuel
TaftvilleFirstLight Power Resources Services LLCTaftville, CT3 GWhDec 1905Dec 2024 Water
Hancock Wind PlantOnward EnergyT22 MD, ME116 GWhNov 2016Apr 2025 Wind
VPPSA Project 10Vermont Public Power Supply AuthoritySwanton, VT1 GWhApr 2010Dec 2024 Distillate Fuel Oil
433 Purchase Solar NG, LLCNuGen Capital ManagementSwansea, MA4 GWhMar 2012Dec 2024 Solar
Sutton Solar CSGSutton Solar, LLCSutton, MA3 GWhOct 2016Dec 2024 Solar
Sutton Solar 2, LLC CSGSutton Solar 2, LLCSutton, MA1 GWhNov 2020Dec 2024 Solar
Sunderland Solar PVNSTAR Electric CompanySunderland, MA2 GWhAug 2018Dec 2024 Solar
Pembroke HydroEagle Creek Renewable Energy, LLCSuncook, NH7 GWhNov 1985Dec 2024 Water
Canis Major Solar FarmLSE Canis Major LLCSuffield, CT4 GWhNov 2016Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator190.5 TWh2,051
#8Tennessee Valley Authority158.7 TWh204
#10Florida Power & Light Co.149.5 TWh187
#12New York Independent System Operator130.5 TWh1,191
#13Duke Energy Carolinas111.8 TWh565
#14ISO New England103.4 TWh1,561
#16Bonneville Power Administration81.4 TWh163
#17Duke Energy Progress East65.0 TWh558
#18Salt River Project Agricultural Improvement and Power District58.8 TWh48
#19PacifiCorp East57.6 TWh215