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 1,201 to 1,300 of 1,387
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
ME - EDF - Phase II - BelfastShining Solar Partners, LLCBelfast, ME8 GWhAug 2024Dec 2025 Solar
Marston Mills SolarSoCore Energy LLCMarstons Mills, MA6 GWhNov 2021Dec 2025 Solar
GD Richmond Beaver River I LLCGD Richmond Beaver River I LLCRichmond, RI6 GWhMar 2025Dec 2025 Solar
White Brook Renewables PVWhite Brook Renewables LLCWest Greenwich, RI7 GWhNov 2024Dec 2025 Solar
Brattleboro (Windham Landfill)Altus Power America Management, LLCBrattleboro, VT6 GWhJul 2018Dec 2025 Solar
CTGB Manson YouthTotalEnergies Renewables USA LLCCheshire, CT3 GWhNov 2024Dec 2025 Solar
CTGB OsbornTotalEnergies Renewables USA LLCSomers, CT3 GWhNov 2024Dec 2025 Solar
CTGB Maloney and WebsterTotalEnergies Renewables USA LLCCheshire, CT3 GWhJun 2025Dec 2025 Solar
MD - EDFR - Phase II - LewistonHayworth Solar Partners, LLCLewiston, ME8 GWhOct 2024Dec 2025 Solar
20 BedfordMadison Energy Investments LLCBridgewater, MA146 MWhNov 2024Dec 2025 Solar
SP-231 CliftonMadison Energy Investments LLCClifton, ME5 GWhNov 2024Dec 2025 Solar
376 NashMadison Energy Investments LLCNew Bedford, MA17 MWhNov 2024Dec 2025 Solar
Roosevelt TrailMadison Energy Investments LLCWindham, ME1 GWhNov 2024Dec 2025 Solar
SP-339 Mechanic FallsMadison Energy Investments LLCMechanic Falls, ME1 GWhNov 2024Dec 2025 Solar
1519 Crandall Road1519 Crandall Road LLCTiverton, RI6 GWhNov 2020Dec 2025 Solar
BWC Mystic RiverBWC Mystic River LLCMendon, MA2 GWhJun 2017Dec 2025 Solar
BWC Origination 19BWC Origination 19 LLCHopedale, MA2 GWhJul 2017Dec 2025 Solar
BWC Origination 8 LLC Sturbridge 1BWC Origination 8 LLC Sturbridge 1 LLCSturbridge, MA1 GWhJul 2017Dec 2025 Solar
BWC Origination 8 LLC Sturbridge 2BWC Origination 8 LLC Sturbridge 2 LLCSturbridge, MA1 GWhAug 2017Dec 2025 Solar
Dudley Landfill Solar LLCDudley Landfill Solar LLCDudley, MA1 GWhApr 2025Dec 2025 Solar
Hampden Landfill Solar LLCHampden Landfill Solar LLCHampden, MA2 GWhNov 2024Dec 2025 Solar
Manville Hill Road SolarManville Hill Road Solar LLCCumberland, RI7 GWhApr 2021Dec 2025 Solar
Penobscot Narrows Solar IPenobscot Narrows Solar I LLCBucksport, ME7 GWhMay 2024Dec 2025 Solar
MEVS Clark LLCMEVS Clark LLCBingham, ME6 GWhSep 2023Dec 2025 Solar
Danton XI Solar LLCDanton XI Solar LLCMethuen, MA2 GWhDec 2013Dec 2025 Solar
NL MA - CopicutStandard SolarFreetown, MA6 GWhMay 2025Dec 2025 Solar
Bilton SolarEcos Energy LLCSomers, CT3 GWhAug 2023Dec 2025 Solar
Ava SolarEcos Energy LLCWare, MA2 GWhNov 2023Dec 2025 Solar
Mousam River SolarWalden Renewables Development LLCSanford, ME7 GWhOct 2025Dec 2025 Solar
0 MiddleMadison Energy Investments LLCChatham, MA3 GWhAug 2022Dec 2025 Solar
15 LincolnMadison Energy Investments LLCNorfolk, MA1 GWhNov 2022Dec 2025 Solar
BroadheadMadison Energy Investments LLCWaterville, ME7 GWhFeb 2023Dec 2025 Solar
TJA MA Wakeby RoadStandard SolarBarnstable, MA1 GWhAug 2025Dec 2025 Solar
MEVS WaterhouseMEVS LLCScarborogh, ME3 GWhNov 2024Dec 2025 Solar
Lisbon CSG LLCDimension Energy LLCLisbon, ME142 MWhSep 2025Dec 2025 Solar
Turner CSG LLCDimension Energy LLCTurner, ME428 MWhJul 2025Dec 2025 Solar
Water Line Solar, LLCDimension Energy LLCNorth Yarmouth, ME773 MWhMay 2025Dec 2025 Solar
Boundary Line Solar, LLCDimension Energy LLCNorth Yarmouth, ME87 MWhSep 2025Dec 2025 Solar
Stanley Black & DeckerOnyx Asset Services GroupEast Longmeadow, MA6 MWhNov 2025Dec 2025 Solar
New Britain - 142 Deming RdOnyx Asset Services GroupBerlin, CT44 MWhNov 2025Dec 2025 Solar
Lebanon West Lebanon Solar 1Lebanon West Lebanon Solar 1, LLCLebanon, ME3 GWhNov 2024Dec 2025 Solar
Berwick Hubbard Solar 1Berwick Hubbard Solar 1, LLCBerwick, ME6 GWhNov 2024Dec 2025 Solar
Sheffield HewinsNavisun LLCSheffield, MA2 GWhNov 2022Dec 2025 Solar
GSPP 9557 E Rd S, LLCGreen Street Power PartnersLowville, NY2 GWhMar 2025Dec 2025 Solar
GSPP 9605 E Rd N, LLCGreen Street Power PartnersLowville, NY2 GWhMar 2025Dec 2025 Solar
GSPP ROUTE 262, LLCGreen Street Power PartnersBergen, NY332 MWhJul 2025Dec 2025 Solar
GSPP Worcester Business Center, LLCGreen Street Power PartnersWorcester, MA300 MWhJul 2025Dec 2025 Solar
Medway GridMedway Grid LLCMedway, MA18 GWh-Jun 2026 Electricity used for energy storage
Middlebury CollegeMiddlebury College BiomassMiddlebury, VT2 GWhDec 1979Jun 2026 Wood/Wood Waste Solids : 58.5% Natural Gas : 41.5%
WED Coventry 2WED Coventry Two, LLCCoventry, RI9 GWhJul 2016Jun 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 Green Hill, LLCWED Green Hill, LLCJohnston, RI6 GWhDec 2018Jun 2026 Wind
WED Shun I, LLCWED Shun I, LLCJohnston, RI7 GWhDec 2018Jun 2026 Wind
Rainbow (CT)Farmington River Power CompanyWindsor, CT19 GWhNov 1925Jul 2026 Water
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%
J C McNeilCity of Burlington Electric - (VT)Burlington, VT189 GWhMay 1984Jul 2026 Wood/Wood Waste Solids : 99.6%
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME323 GWhDec 1956Jul 2026 Residual Fuel Oil : 99.6%
Kendall Square StationKendall Green Energy, LLCCambridge, MA1 TWhMay 1949Jul 2026 Natural Gas : 97.3% Distillate Fuel Oil : 2.7%
CanalCanal Generating LLCSandwich, MA467 GWhMay 1968Jul 2026 Residual Fuel Oil : 59.3% Natural Gas : 28.9% Distillate Fuel Oil : 11.7%
MerrimackGranite Shore PowerBow, NH32 GWhNov 1960Jul 2026 Bituminous Coal : 92.8% Jet Fuel : 7.1%
SchillerGranite Shore PowerPortsmouth, NH561 MWhSep 1952Jul 2026 Jet Fuel
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
Berlin 5Green Mountain Power CorpBerlin, VT1 GWhMay 1972Jul 2026 Kerosene
Essex Junction 19Green Mountain Power CorpEssex Junction, VT36 GWhDec 1916Jul 2026 Water : 99.0% Distillate Fuel Oil : 1.0%
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA133 GWhOct 1981Jul 2026 Distillate Fuel Oil : 73.3% Natural Gas : 26.7%
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990Jul 2026 Nuclear
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%
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT10 GWhMay 1997Jul 2026 Wind
NewingtonGranite Shore PowerNewington, NH136 GWhMay 1974Jul 2026 Residual Fuel Oil : 73.7% Natural Gas : 24.7% Distillate Fuel Oil : 1.6%
General Electric Aircraft EnginesGeneral Electric Aircraft EnginesLynn, MA2 GWhDec 1947Jul 2026 Solar
Hampton FacilityFoss Manufacturing Company LLCHampton, NH28 GWhSep 1978Jul 2026 Natural Gas
Indian Orchard Plant 1Solutia Inc-IndianSpringfield, MA10 GWhApr 1985Jul 2026 Natural Gas
Rumford CogenerationND Paper, Inc.Rumford, ME401 GWhDec 1989Jul 2026 Black Liquor : 54.2% Tire-derived Fuels : 20.8% Wood/Wood Waste Solids : 16.7% Bituminous Coal : 6.0% Residual Fuel Oil : 1.1% Natural Gas : 0.6% Sludge Waste : 0.6%
Algonquin Windsor LocksAhlstrom Power Windsor Locks LLCWindsor Locks, CT145 GWhDec 1989Jul 2026 Natural Gas : 92.1% Distillate Fuel Oil : 7.9%
Covanta Southeastern Connecticut CompanyCovanta Southeastern Connecticut CompanyPreston, CT106 GWhNov 1991Jul 2026 Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Distillate Fuel Oil : 2.2%
Pepperell Hydro Power PlantEagle Creek Renewable Energy, LLCPepperell, MA2 GWhDec 1919Jul 2026 Water
Deer Island Treatment PlantMassachusetts Wtr Rauth-Deer IWinthrop, MA32 GWhJul 1995Jul 2026 Other Biomass Gas : 81.7% Distillate Fuel Oil : 13.7% Wind : 2.8% Solar : 1.8%
Pittsfield Generating LPPittsfield Generating Company, LPPittsfield, MA64 GWhJun 1990Jul 2026 Natural Gas : 93.3% Distillate Fuel Oil : 6.7%
MMWAC Resource Recovery FacilityMaine Waste to EnergyAuburn, ME7 GWhMay 1992Jul 2026 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.9%
Otis HydroEagle Creek Renewable Energy, LLCLivermore Falls, ME41 GWhDec 1984Jul 2026 Water
Blackstone/TupperwareBlackstone Hydro Inc.North Smithfield, RI2 GWhDec 1980Jul 2026 Water
Regional Waste SystemsEcomainePortland, ME87 GWhMay 1988Jul 2026 Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7%
Bucksport Generation LLCBucksport Generation LLCBucksport, ME26 GWhJun 1965Jul 2026 Natural Gas : 53.6% Distillate Fuel Oil : 46.4%
SEMASS Resource RecoverySEMASS PartnershipWest Wareham, MA546 GWhJun 1988Jul 2026 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 1.7%
Somerset PlantSappi Fine Paper North America-SomersetSkowhegan, ME565 GWhDec 1975Jul 2026 Black Liquor : 47.1% Wood/Wood Waste Solids : 31.7% Natural Gas : 13.0% Tire-derived Fuels : 4.1% Residual Fuel Oil : 3.4% Sludge Waste : 0.5%
Central Power PlantState of Rhode IslandCranston, RI15 GWhJul 1958Jul 2026 Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
Covanta Bristol EnergyCovanta Bristol IncBristol, CT108 GWhNov 1987Jul 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Covanta HaverhillOgden Projects Inc-HaverhillHaverhill, MA291 GWhApr 1989Jul 2026 Non-biogenic Municipal Solid Waste : 52.8% Biogenic Municipal Solid Waste : 43.2% Distillate Fuel Oil : 4.0%
Wheelabrator Concord FacilityWheelabrator Environmental SystemsConcord, NH93 GWhMar 1989Jul 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator North AndoverWheelabrator Environmental SystemsNorth Andover, MA247 GWhApr 1985Jul 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator Millbury FacilityWheelabrator Environmental SystemsMillbury, MA288 GWhAug 1987Jul 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA182 GWhJul 1985Jul 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator BridgeportWheelabrator Environmental SystemsBridgeport, CT429 GWhJun 1988Jul 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Rhode Island HospitalRhode Island HospitalProvidence, RI40 GWhSep 1974Jul 2026 Natural Gas : 83.2% Residual Fuel Oil : 16.8%
Gillette SBMCThe Gillette CompanyBoston, MA59 GWhJan 1971Jul 2026 Natural Gas
Erving Paper MillsErving Paper Mills IncErving, MA42 GWhNov 2013Jul 2026 Natural Gas : 98.0% Distillate Fuel Oil : 2.0%
Pfizer Groton PlantPfizer IncGroton, CT79 GWhDec 1947Jul 2026 Natural Gas : 89.1% Distillate Fuel Oil : 10.9%

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