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%

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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 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
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
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
MEVS WaterhouseMEVS LLCScarborogh, ME3 GWhNov 2024Dec 2025 Solar
Stanley Black & DeckerOnyx Asset Services GroupEast Longmeadow, MA6 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
New Haven SteamGeneration Bridge II Connecticut, LLCNew Haven, CT167 GWhJun 1975Jan 2026 Residual Fuel Oil : 45.1% Natural Gas : 40.3% Distillate Fuel Oil : 12.2% Kerosene : 2.5%
Central Power PlantState of Rhode IslandCranston, RI19 GWhJul 1958Mar 2026 Natural Gas : 97.5% Distillate Fuel Oil : 2.5%
Southbridge SolarAES Distributed EnergySouthbridge, MA2 GWhFeb 2016Mar 2026 Solar
J C McNeilCity of Burlington Electric - (VT)Burlington, VT224 GWhMay 1984Apr 2026 Wood/Wood Waste Solids : 99.8%
NewingtonGranite Shore PowerNewington, NH157 GWhMay 1974Apr 2026 Residual Fuel Oil : 64.1% Natural Gas : 34.5% Distillate Fuel Oil : 1.4%
Rhode Island State Energy CenterRISEC Operating ServicesJohnston, RI4 TWhSep 2002Apr 2026 Natural Gas
Rainbow (CT)Farmington River Power CompanyWindsor, CT22 GWhNov 1925May 2026 Water
MillstoneDominion Energy Nuclear Conn IncWaterford, CT17 TWhNov 1975May 2026 Nuclear
Bridgeport StationGeneration Bridge II Connecticut, LLCBridgeport, CT3 TWhJul 1961May 2026 Natural Gas : 84.6% Distillate Fuel Oil : 15.4%
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME339 GWhDec 1956May 2026 Residual Fuel Oil : 99.6%
Kendall Square StationKendall Green Energy, LLCCambridge, MA1 TWhMay 1949May 2026 Natural Gas : 97.3% Distillate Fuel Oil : 2.7%
CanalCanal Generating LLCSandwich, MA546 GWhMay 1968May 2026 Residual Fuel Oil : 55.3% Natural Gas : 34.6% Distillate Fuel Oil : 10.1%
MerrimackGranite Shore PowerBow, NH116 GWhNov 1960May 2026 Bituminous Coal : 97.6% Jet Fuel : 2.3%
SchillerGranite Shore PowerPortsmouth, NH888 MWhSep 1952May 2026 Jet Fuel
Manchester StreetManchester Street, LLC.Providence, RI2 TWhAug 1995May 2026 Natural Gas : 92.2% Distillate Fuel Oil : 7.8%
AscutneyGreen Mountain Power CorpWeatherfield, VT437 MWhJul 1961May 2026 Distillate Fuel Oil
Berlin 5Green Mountain Power CorpBerlin, VT2 GWhMay 1972May 2026 Kerosene
Essex Junction 19Green Mountain Power CorpEssex Junction, VT34 GWhDec 1916May 2026 Water : 98.8% Distillate Fuel Oil : 1.2%
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA164 GWhOct 1981May 2026 Distillate Fuel Oil : 61.3% Natural Gas : 38.7%
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990May 2026 Nuclear
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT10 GWhMay 1997May 2026 Wind
General Electric Aircraft EnginesGeneral Electric Aircraft EnginesLynn, MA2 GWhDec 1947May 2026 Solar
Hampton FacilityFoss Manufacturing Company LLCHampton, NH28 GWhSep 1978May 2026 Natural Gas
Indian Orchard Plant 1Solutia Inc-IndianSpringfield, MA7 GWhApr 1985May 2026 Natural Gas
Rumford CogenerationND Paper, Inc.Rumford, ME400 GWhDec 1989May 2026 Black Liquor : 55.5% Tire-derived Fuels : 20.6% Wood/Wood Waste Solids : 16.0% Bituminous Coal : 6.1% Residual Fuel Oil : 1.2% Sludge Waste : 0.7%
Algonquin Windsor LocksAhlstrom Power Windsor Locks LLCWindsor Locks, CT147 GWhDec 1989May 2026 Natural Gas : 92.2% Distillate Fuel Oil : 7.8%
Covanta Southeastern Connecticut CompanyCovanta Southeastern Connecticut CompanyPreston, CT108 GWhNov 1991May 2026 Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Distillate Fuel Oil : 2.1%
Pepperell Hydro Power PlantEagle Creek Renewable Energy, LLCPepperell, MA2 GWhDec 1919May 2026 Water
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%
Pittsfield Generating LPPittsfield Generating Company, LPPittsfield, MA136 GWhJun 1990May 2026 Natural Gas : 96.9% Distillate Fuel Oil : 3.1%
MMWAC Resource Recovery FacilityMaine Waste to EnergyAuburn, ME8 GWhMay 1992May 2026 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.8%
Otis HydroEagle Creek Renewable Energy, LLCLivermore Falls, ME38 GWhDec 1984May 2026 Water
Blackstone/TupperwareBlackstone Hydro Inc.North Smithfield, RI2 GWhDec 1980May 2026 Water
Regional Waste SystemsEcomainePortland, ME87 GWhMay 1988May 2026 Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7%
Bucksport Generation LLCBucksport Generation LLCBucksport, ME29 GWhJun 1965May 2026 Natural Gas : 57.8% Distillate Fuel Oil : 42.2%
SEMASS Resource RecoverySEMASS PartnershipWest Wareham, MA553 GWhJun 1988May 2026 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.7%
Somerset PlantSappi Fine Paper North America-SomersetSkowhegan, ME568 GWhDec 1975May 2026 Black Liquor : 45.9% Wood/Wood Waste Solids : 32.4% Natural Gas : 13.1% Tire-derived Fuels : 4.1% Residual Fuel Oil : 3.7% Sludge Waste : 0.5%
Covanta Bristol EnergyCovanta Bristol IncBristol, CT109 GWhNov 1987May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Covanta HaverhillOgden Projects Inc-HaverhillHaverhill, MA287 GWhApr 1989May 2026 Non-biogenic Municipal Solid Waste : 52.8% Biogenic Municipal Solid Waste : 43.2% Distillate Fuel Oil : 4.1%
Wheelabrator Concord FacilityWheelabrator Environmental SystemsConcord, NH93 GWhMar 1989May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator North AndoverWheelabrator Environmental SystemsNorth Andover, MA240 GWhApr 1985May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator Millbury FacilityWheelabrator Environmental SystemsMillbury, MA288 GWhAug 1987May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA180 GWhJul 1985May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator BridgeportWheelabrator Environmental SystemsBridgeport, CT430 GWhJun 1988May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Rhode Island HospitalRhode Island HospitalProvidence, RI53 GWhSep 1974May 2026 Natural Gas : 87.3% Residual Fuel Oil : 12.7%
Gillette SBMCThe Gillette CompanyBoston, MA54 GWhJan 1971May 2026 Natural Gas
Erving Paper MillsErving Paper Mills IncErving, MA42 GWhNov 2013May 2026 Natural Gas : 98.0% Distillate Fuel Oil : 2.0%
Pfizer Groton PlantPfizer IncGroton, CT75 GWhDec 1947May 2026 Natural Gas : 88.5% Distillate Fuel Oil : 11.5%
Dartmouth College Heating PlantDartmouth CollegeHanover, NH11 GWhDec 1969May 2026 Residual Fuel Oil
Pratt & WhitneyUnited TechnologiesEast Hartford, CT76 GWhDec 1991May 2026 Natural Gas
Wheelabrator LisbonWheelabrator Environmental SystemsLisbon, CT101 GWhSep 1995May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Bridgeport Energy ProjectBridgeport Energy LLCBridgeport, CT3 TWhMay 1998May 2026 Natural Gas
Millennium PowerMillennium Power Company, LLCCharlton, MA995 GWhMar 2001May 2026 Natural Gas
Milford Power ProjectMilford Power Co LLCMilford, CT3 TWhJan 2004May 2026 Natural Gas
Lake Road Generating PlantLake Road Generating Co LPDayville, CT6 TWhFeb 2002May 2026 Natural Gas
Granite RidgeGranite Ridge Energy LLCLondonderry, NH4 TWhFeb 2003May 2026 Natural Gas
ANP Bellingham Energy ProjectBellingham Power Generation LLCBellingham, MA3 TWhOct 2002May 2026 Natural Gas
ANP Blackstone Energy ProjectANP Blackstone Energy Company LLCBlackstone, MA3 TWhMay 2001May 2026 Natural Gas
Westbrook Energy Center Power PlantWestbrook Energy CenterWestbrook, ME4 TWhApr 2001May 2026 Natural Gas
Fore River Generating StationCalpine Fore River Energy Center, LLCNorth Weymouth, MA3 TWhJul 2003May 2026 Natural Gas : 92.7% Distillate Fuel Oil : 7.3%
Newington Energy CenterEssential Power Operating Services, LLCNewington, NH2 TWhSep 2002May 2026 Natural Gas : 92.8% Distillate Fuel Oil : 7.2%
CPV Towantic Energy CenterCPV Towantic, LLCOxford, CT6 TWhApr 2018May 2026 Natural Gas
Lempster Wind LLCAvangrid Power LLCLempster, NH62 GWhNov 2008May 2026 Wind
Kleen Energy SystemsKleen Energy Systems, LLCMiddletown, CT4 TWhJun 2011May 2026 Natural Gas : 97.9% Distillate Fuel Oil : 2.1%
Kibby Wind FacilityHelix Maine Wind Development, LLCChain of Ponds, ME242 GWhSep 2009May 2026 Wind
Oakfield Wind ProjectOnward EnergyCity of Oakfield, ME340 GWhSep 2015May 2026 Wind
Sheffield WindEvergreen Wind, LLCSheffield, VT57 GWhSep 2011May 2026 Wind
New England Wind LLCAvangrid Power LLCFlorida, MA73 GWhNov 2012May 2026 Wind
Bingham WindOnward EnergyBingham, ME474 GWhNov 2016May 2026 Wind
Fort Hill 1, 2, 3 & 4Connecticut Mun Elec Engy CoopUncasville, CT734 MWhJul 2010May 2026 Distillate Fuel Oil
Water Treatment 1 & 2Connecticut Mun Elec Engy CoopGroton, CT494 MWhSep 2010May 2026 Distillate Fuel Oil
Berkshire Wind Power ProjectMassachusetts Mun Wholes Electric CoLanesboro, MA32 GWhApr 2011May 2026 Wind
Middlebury CollegeMiddlebury College BiomassMiddlebury, VT2 GWhDec 1979May 2026 Wood/Wood Waste Solids : 60.7% Natural Gas : 39.3%

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