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 112.3 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 | 54.2% Nuclear | 25.2% Wind | 5.6% Water | 4.6% Other Fuel | 4.4% 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 1,101 to 1,200 of 1,387
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Stetson Road Solar - Barre IKearsarge Solar LLCBarre, MA2 GWhApr 2014Dec 2025 Solar
Stetson Wind IEvergreen Wind, LLCDanforth, ME146 GWhDec 2008Dec 2025 Wind
Stetson Wind IIEvergreen Wind, LLCDanforth, ME55 GWhFeb 2010Dec 2025 Wind
Stevens Mills DamEagle Creek Renewable Energy, LLCFranklin, NH4 GWhMay 1982Dec 2025 Water
StevensonFirstLight Power Resources Services LLCMonroe, CT71 GWhDec 1918Dec 2025 Water
Stillwater BBrookfield Black Bear Hydro, LLCOld Town, ME9 GWhAug 2013Dec 2025 Water
Stillwater Hydro StationBrookfield Black Bear Hydro, LLCStillwater, ME6 GWhDec 1912Dec 2025 Water
Stone Hill Solar CSGMN8 Energy LLCNorth Easton, MA2 GWhJun 2014Dec 2025 Solar
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA133 GWhOct 1981Jul 2026 Distillate Fuel Oil : 73.3% Natural Gas : 26.7%
Stow PVAES Distributed EnergyStow, MA3 GWhNov 2013Dec 2025 Solar
Sturbridge BarnLSE Ara LLCCharlton, MA2 GWhMay 2018Dec 2025 Solar
Subase Microgrid ProjectConnecticut Mun Elec Engy CoopGroton, CT30 GWhNov 2022Dec 2025 Natural Gas
Sudbury LandfillHeliovaas LLCSudbury, MA1 GWhNov 2013Dec 2025 Solar
Sudbury SolarEcos Energy LLCSudbury, VT2 GWhApr 2016Dec 2025 Solar
Sugar Hill Solar 1Sugar Hill Solar 1, LLCClifton Park, NY8 GWhNov 2020Dec 2025 Solar
Sullivan SolarAltus Power America Management, LLCNew Bedford, MA2 GWhJul 2014Dec 2025 Solar
Sunderland Solar PVNSTAR Electric CompanySunderland, MA2 GWhAug 2018Dec 2025 Solar
SunGen Sharon 1 LLCSunGen Sharon 1 LLCSharon, VT2 GWhJul 2012Dec 2025 Solar
Sunpin BlandfordBlandford Sun, LLCSouthwick, MA6 GWhMay 2020Dec 2025 Solar
Sutton Solar 2, LLC CSGSutton Solar 2, LLCSutton, MA1 GWhNov 2020Dec 2025 Solar
Sutton Solar CSGSutton Solar, LLCSutton, MA3 GWhOct 2016Dec 2025 Solar
SVEP Solar Project CompanyCVI CleanCapital Solar 1 LLCPownal, VT2 GWhNov 2012Dec 2025 Solar
Swaggertown Solar IGreen Street Power PartnersGlenville, NY4 GWhOct 2024Dec 2025 Solar
Swaggertown Solar IIGreen Street Power PartnersGlenville, NY7 GWhAug 2024Dec 2025 Solar
Sydney SolarEcos Energy LLCHampton, CT3 GWhMay 2020Dec 2025 Solar
Syncarpha Blandford Hybrid CSGSyncarpha Blandford, LLCBlandford, MA8 GWhNov 2019Dec 2025 Solar
Syncarpha FreetownMarie's Way Solar I, LLCFreetown, MA6 GWhOct 2016Dec 2025 Solar
Syncarpha Halifax Hybrid CSGSyncarpha Halifax, LLCHalifax, MA3 GWhNov 2020Dec 2025 Solar
Syncarpha Hancock I CSGSyncarpha Hancock I, LLCHancock, MA3 GWhOct 2017Dec 2025 Solar
Syncarpha Hancock II CSGSyncarpha Hancock II, LLCHancock, MA3 GWhOct 2017Dec 2025 Solar
Syncarpha Hancock III CSGSyncarpha Hancock III, LLCPittsfield, MA1 GWhOct 2017Dec 2025 Solar
Syncarpha Leicester Hybrid CSGSyncarpha Leicester, LLCLeicester, MA4 GWhMay 2021Dec 2025 Solar
Syncarpha Millbury Hybrid (CSG)Syncarpha Millbury, LLCMillbury, MA8 GWhSep 2022Dec 2025 Solar
Syncarpha Northampton Hybrid CSGSyncarpha Northampton, LLCNorthampton, MA5 GWhNov 2020Dec 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
Syncarpha Palmer, LLCSyncarpha Palmer, LLCPalmer, MA7 GWhNov 2015Dec 2025 Solar
Syncarpha Puddon I Hybrid CSGSyncarpha Puddon I, LLCNorthbridge, MA8 GWhFeb 2021Dec 2025 Solar
Syncarpha Puddon II Hybrid CSGSyncarpha Puddon II, LLCNorthbridge, MA8 GWhFeb 2021Dec 2025 Solar
Syncarpha Still River, LLC CSGSyncarpha Still River, LLCBolton, MA4 GWhNov 2016Dec 2025 Solar
Syncarpha Tewksbury Hybrid CSGSyncarpha Tewksbury, LLCTewksbury, MA4 GWhJan 2022Dec 2025 Solar
Syncarpha Westminster Hybrid CSGSyncarpha Westminster, LLCWestminster, MA6 GWhOct 2022Dec 2025 Solar
TaftvilleFirstLight Power Resources Services LLCTaftville, CT2 GWhDec 1905Dec 2025 Water
Tanglewood Circle Solar 1 LLCTanglewood Circle Solar 1 LLCBecket, MA7 GWhOct 2018Dec 2025 Solar
Tank Farm 4Solar Breakers LLCPortsmouth, RI13 GWhSep 2022Dec 2025 Solar
Technology Drive SolarRWE Clean EnergyBrattleboro, VT3 GWhAug 2014Dec 2025 Solar
TempletonSunny Templeton, LLCTempleton, MA2 GWhNov 2014Dec 2025 Solar
Tenth StreetCity of Norwich - (CT)Norwich, CT2 GWhApr 1967Dec 2025 Water
TES RowtierSkyHigh 2 SolarWestminster, MA10 GWhMar 2021Dec 2025 Solar
Texon Hydroelectric ProjectHitchcock Hydro, LLCRussell, MA4 GWhDec 1981Dec 2025 Water
Theodore Drive Community SolarTheodore Drive Solar, LLCWestminster, MA2 GWhFeb 2018Dec 2025 Solar
Three Corners SolarThree Corners Solar, LLCUnity, ME196 GWhJun 2024Jul 2026 Solar
Three Rivers Solar LLCASD Three Rivers Road MA Solar LLCWilbraham, MA6 GWhOct 2024Dec 2025 Solar
Thundermist HydroCity of Woonsocket - (RI)Providence, RI3 GWhMay 1981Jul 2025 Water
Ticket Network South WindsorPowerflexSouth Windsor, CT2 GWhApr 2018Dec 2024 Solar
Tihonet SolarRWE Clean EnergyWareham, MA2 GWhApr 2014Dec 2025 Solar
Tisbury Landfill SolarClean Focus Yield, LLCTisbury, MA2 GWhJun 2014Dec 2025 Solar
Tiverton Power PlantTiverton Power LLCTiverton, RI2 TWhFeb 2000Dec 2025 Natural Gas
TJA MA Wakeby RoadStandard SolarBarnstable, MA1 GWhAug 2025Dec 2025 Solar
TollandSunrise on Clubhouse Rd. LLCTolland, MA8 GWhNov 2020Dec 2025 Solar
Tolland Solar NG LLCNuGen Capital ManagementTolland, MA5 GWhSep 2014Dec 2025 Solar
Toray Plastic America's CHP PlantToray Plastics AmericaNorth Kingstown, RI157 GWhDec 2002Dec 2025 Natural Gas
TorringtonConnecticut Jet Power LLCTorrington, CT277 MWhOct 1967Dec 2025 Kerosene
Torrington Solar One, LLCDG Connecticut III, LLCTorrington, CT3 GWhFeb 2021Dec 2025 Solar
Town HouseNautilus Solar SolutionsChelsea, ME8 GWhNov 2022Dec 2025 Solar
Town of Amherst SolarAgilitas Energy, Inc.Amherst, MA4 GWhJul 2022Dec 2025 Solar
Town of BranfordTesla Inc.Branford, CT2 GWhMay 2018Dec 2025 Solar
Town of Burrillville Solar CSGStandard SolarBurrillville, RI7 GWhSep 2020Dec 2025 Solar
Town of East Bridgewater CSGTesla Inc.East Bridgewater, MA1 GWhMay 2013Dec 2025 Solar
Town of Foxborough - Landfill (SREC II)Town of Foxborough - Landfill (SREC II)Foxborough, MA2 GWhJul 2017Dec 2025 Solar
Town of HalfmoonTesla Inc.Waterford, NY680 MWhMay 2017Dec 2025 Solar
Town of Lexington SolarSyncarpha Lexington, LLCLexington, MA3 GWhApr 2017Dec 2025 Solar
Town of Needham VNEM CSGTesla Inc.Needham, MA4 GWhJan 2016Dec 2025 Solar
Town of Norfolk MA at Medway BranchLuminace Solar Massachusetts, LLCNorfolk, MA2 GWhMay 2012Dec 2025 Solar
Town of Otis Wind Energy ProjectTown of Otis - (MA)Otis, MA4 GWhFeb 2018Dec 2025 Wind
Town of Rocky Hill PV CSGTesla Inc.Rocky Hill, CT5 GWhFeb 2018Dec 2025 Solar
Town of Uxbridge MA at Commerce DrLuminace Solar Net Metering, LLCUxbridge, MA2 GWhMay 2012Dec 2025 Solar
Town of Ware - Canadian Tree(CSG)MA CS Ware West, LLCWare, MA2 GWhNov 2021Dec 2025 Solar
Townline Community SolarAES Distributed EnergyBatavia, NY7 GWhJan 2022Dec 2025 Solar
TPE King Solar Holdings1, LLC (CSG)Nautilus Solar SolutionsNorth Smithfield, RI18 GWhMar 2022Dec 2025 Solar
TPE RI WA1 SolarTPE RI WA1, LLCWarren, RI6 GWhMay 2024Dec 2025 Solar
TPE RI WA2 SolarTPE RI WA2, LLCWarren, RI6 GWhMay 2024Dec 2025 Solar
Treasure Lane Solar 1AES Clean EnergyManchester, ME8 GWhApr 2023Dec 2025 Solar
Trinity College Fuel CellOnsite Partners, LLCHartford, CT11 GWhJul 2018Dec 2025 Natural Gas
Truck StopLSE Corona Austrina LLCWest Stockridge, MA3 GWhOct 2017Dec 2025 Solar
True NorthCD US Solar MT1 LLCSalisbury, MA6 GWhJul 2012Dec 2025 Solar
TunnelFirstLight Power Resources Services LLCPreston, CT6 GWhDec 1918Dec 2025 Water
Turner CSG LLCDimension Energy LLCTurner, ME428 MWhJul 2025Dec 2025 Solar
Turners FallsFirstLight Power Resources, Inc. - MAMontague, MA12 GWhDec 1904Dec 2025 Water
Turnkey Landfill Gas RecoveryWM Renewable Energy LLCRochester, NH39 GWhJan 1992Dec 2025 Landfill Gas
Twiss Street SolarCitizens Enterprises CorporationWestfield, MA2 GWhDec 2014Mar 2025 Solar
Tyngsborough SolarCitizens Enterprises CorporationTyngsborough, MA3 GWhDec 2016Dec 2025 Solar
UB Fuel CellUB Fuel CellBridgeport, CT10 GWhMar 2015Dec 2025 Natural Gas
UCONN Cogen FacilityUniversity of ConnecticutStorrs, CT111 GWhFeb 2006Jul 2026 Natural Gas : 95.1% Distillate Fuel Oil : 4.9%
UDR Glastonbury Fuel CellUIL Distributed Resources, LLCGlastonbury, CT16 GWhJan 2016Dec 2025 Natural Gas
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
UI RCP Woodbridge FCUnited Illuminating CoWoodbridge, CT17 GWhNov 2016Dec 2025 Natural Gas
UMASSRWE Clean EnergyAmherst, MA5 GWhSep 2016Dec 2025 Solar
UMass BostonMSS Energy Holdings, LLC (d.b.a. Calibrant Energy)Dorchester, MA1 GWhDec 1971Dec 2025 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator167.6 TWh2,170
#9Tennessee Valley Authority166.3 TWh209
#10Florida Power & Light Co.152.8 TWh188
#12New York Independent System Operator134.2 TWh1,334
#13Duke Energy Carolinas113.6 TWh578
#15ISO New England112.3 TWh1,667
#16Bonneville Power Administration91.2 TWh170
#17Duke Energy Progress East66.1 TWh574
#18PacifiCorp East61.3 TWh223
#19Salt River Project Agricultural Improvement and Power District60.3 TWh51