ISO New England

Balancing Authority Summary Information

ISO New England is ranked #15 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 Nov 2024
Annual Generation 102.8 TWh
Power Plants1,487
Utilities782
Ranked #15 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 | 57.6% Nuclear | 25% Water | 7.7% Other Fuel | 4.6% Wind | 3.3% Solar | 1.2% 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 101 to 200 of 1,204
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Block Island Wind FarmDeepwater Wind Block Island LLCNA, RI97 GWhNov 2016Aug 2024 Wind
Lawrence Hydroelectric AssociatesCentral Rivers Power US, LLCLawrence, MA94 GWhJun 1981Dec 2023 Water
Wheelabrator Concord FacilityWheelabrator Environmental SystemsConcord, NH94 GWhMar 1989Aug 2024 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Weston HydroBrookfield White Pine Hydro LLCSkowhegan, ME88 GWhDec 1919Dec 2023 Water
Deerfield Wind LLCAvangrid Renewables LLCSearsburg, VT88 GWhNov 2017Aug 2024 Wind
Sanford SolarSanford Airport Solar, LLCSanford, ME88 GWhOct 2020Aug 2024 Solar
Saddleback Ridge Wind FarmCPV Saddleback Ridge Wind, LLCCarthage, ME83 GWhNov 2014Dec 2023 Wind
Generate Colchester Fuel Cells, LLCGenerate Colchester Fuel Cells, LLCColchester, CT82 GWhSep 2021Dec 2023 Natural Gas
Androscoggin Energy CenterJGT2 Energy LLCJay, ME82 GWhSep 1999Dec 2023 Natural Gas : 96.1% Distillate Fuel Oil : 3.9%
Bull Hill Wind ProjectEvergreen Wind, LLCEastbrook, ME82 GWhSep 2012Dec 2023 Wind
Regional Waste SystemsEcomainePortland, ME81 GWhMay 1988Aug 2024 Non-biogenic Municipal Solid Waste : 54.4% Biogenic Municipal Solid Waste : 44.5% Natural Gas : 1.0%
Quinebaug SolarQuinebaug Solar, LLCCanterbury, CT77 GWhNov 2021Aug 2024 Solar
Sheldon Springs HydroelectricCentral Rivers Power US, LLCSheldon Springs, VT75 GWhJun 1988Dec 2023 Water
SJA Solar LLC-Solterra Monastery CSGSJA Solar, LLCSpencer, MA72 GWhNov 2016Dec 2023 Solar
Pejepscot Hydroelectric ProjectTopsham Hydro PartnersTopsham, ME71 GWhOct 1987Dec 2023 Water
Berkshire PowerBerkshire Power Co LLCAgawam, MA70 GWhAug 1999Dec 2023 Natural Gas
Hydro Kennebec ProjectHydro Kennebec LLCWinslow, ME70 GWhDec 1988Dec 2023 Water
Pfizer Groton PlantPfizer IncGroton, CT69 GWhDec 1947Aug 2024 Natural Gas : 97.6% Distillate Fuel Oil : 2.4%
Deer RipsBrookfield White Pine Hydro LLCAuburn, ME69 GWhDec 1902Dec 2023 Water
Androscoggin MillPixelle Androscoggin LLCJay, ME69 GWhDec 1963Mar 2023 Natural Gas : 51.1% Black Liquor : 37.4% Wood/Wood Waste Solids : 11.6%
Univ of Massachusetts Medical CenterUniversity of Massachusetts MedicalWorcester, MA68 GWhMar 1974Dec 2023 Natural Gas : 97.4% Residual Fuel Oil : 2.4%
Antrim WindAntrim Wind Energy LLCAntrim, NH67 GWhNov 2019Aug 2024 Wind
Red Shield Envir Old Town FacilityND Paper, Inc.Old Town, ME66 GWhJun 1965Apr 2023 Wood/Wood Waste Solids : 63.4% Black Liquor : 22.1% Natural Gas : 11.8% Residual Fuel Oil : 2.7%
Sheffield WindEvergreen Wind, LLCSheffield, VT64 GWhSep 2011Aug 2024 Wind
Sikorsky Aircraft CHPSikorsky Aircraft CorporationStratford, CT64 GWhMay 2010Dec 2023 Natural Gas : 99.9%
Deerfield 5Great River Hydro, LLCFlorida, MA63 GWhSep 1974Dec 2023 Water
New England Wind LLCAvangrid Renewables LLCFlorida, MA62 GWhNov 2012Aug 2024 Wind
Gillette SBMCThe Gillette CompanyBoston, MA61 GWhJan 1971Aug 2024 Natural Gas : 99.9%
Lempster Wind LLCAvangrid Renewables LLCLempster, NH61 GWhNov 2008Aug 2024 Wind
Athens EnergyAthens Energy, LLCAthens, ME60 GWhSep 2016Dec 2023 Wood/Wood Waste Solids
Pontook Hydro FacilityPontook Operating LPDummer, NH58 GWhNov 1986Dec 2023 Water
McindoesGreat River Hydro, LLCBarnet, VT56 GWhDec 1930Dec 2023 Water
Boott HydropowerBoott Hydro, LLC - HybridLowell, MA56 GWhSep 1985Dec 2022 Water
Ayers IslandCentral Rivers Power NH, LLCBristol, NH54 GWhJul 1925Dec 2023 Water
HiramBrookfield White Pine Hydro LLCHiram, ME54 GWhDec 1916Dec 2023 Water
Milford Hydro StationBrookfield Black Bear Hydro, LLCMilford, ME53 GWhJun 1941Dec 2023 Water
Spruce Mountain WIndCPV Spruce Mountain Wind LLCBryant Pond, ME53 GWhNov 2011Dec 2023 Wind
NewingtonGranite Shore PowerNewington, NH53 GWhMay 1974Aug 2024 Natural Gas : 91.5% Residual Fuel Oil : 8.3%
Falls VillageFirstLight Power Resources Services LLCFalls Village, CT52 GWhDec 1913Dec 2023 Water
Silver MapleWEB Silver Maple Wind LLCClifton, ME52 GWhSep 2022Dec 2023 Wind
Coventry Clean Energy CorporationWashington Electric Coop - (VT)Coventry, VT52 GWhJun 2005Dec 2023 Landfill Gas
Canton Mountain WindCPV Canton Mountain Wind LLCCanton, ME50 GWhOct 2017Dec 2023 Wind
Essex Junction 19Green Mountain Power CorpEssex Junction, VT50 GWhDec 1916Aug 2024 Water : 99.5% Distillate Fuel Oil : 0.5%
Highgate FallsVillage of Swanton - (VT)Highgate, VT50 GWhJul 1923Dec 2023 Water
Cleary Flood HybridCity of TauntonTaunton, MA50 GWhMay 1966Dec 2023 Natural Gas : 95.5% Distillate Fuel Oil : 4.5%
Dry Bridge Solar (Brown University)MN8 Energy LLCNorth Kingstown, RI49 GWhOct 2023Aug 2024 Solar
Robin Hollow SolarRobin Hollow Solar, LLCWest Greenwich, RI48 GWhNov 2023Aug 2024 Solar
UNH 7.9 MW PlantEmcor Energy ServicesDurham, NH48 GWhAug 2006Aug 2024 Landfill Gas : 70.9% Natural Gas : 27.3% Distillate Fuel Oil : 1.8%
Three Corners SolarThree Corners Solar, LLCUnity, ME48 GWh-Aug 2024 Solar
MiltonGreen Mountain Power CorpMilton, VT48 GWhJan 1929Dec 2023 Water
Stetson Wind IIEvergreen Wind, LLCDanforth, ME46 GWhFeb 2010Dec 2023 Wind
DWW Solar llDWW Solar ll LLCSimsbury, CT46 GWhNov 2019Aug 2024 Solar
Bonny EagleBrookfield White Pine Hydro LLCHollis, ME45 GWhDec 1909Dec 2023 Water
Turnkey Landfill Gas RecoveryWM Renewable Energy LLCRochester, NH45 GWhJan 1992Dec 2023 Landfill Gas
Garvins FallsCentral Rivers Power NH, LLCBow, NH44 GWhJul 1925Dec 2023 Water
Hartford Hospital CogenerationCartier Energy, LLCHartford, CT44 GWhJun 1988Dec 2023 Natural Gas : 99.8%
Erving Paper MillsErving Paper Mills IncErving, MA42 GWhNov 2013Aug 2024 Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
Pfizer Groton Fuel CellGroton Fuel Cell 1 LLCGroton, CT42 GWhSep 2016Dec 2023 Natural Gas
Bulls BridgeFirstLight Power Resources Services LLCNew Milford, CT42 GWhDec 1902Dec 2023 Water
Riverside HolyokeCity of Holyoke Gas and Electric Dept.Holyoke, MA40 GWhDec 1905Dec 2023 Water
Georges River EnergyRobbins Lumber IncSearsmont, ME40 GWhNov 2018Dec 2023 Wood/Wood Waste Solids
Waterbury GenerationEngie North AmericaWaterbury, CT40 GWhMay 2009Dec 2023 Natural Gas : 99.7%
Deerfield 2Great River Hydro, LLCConway, MA39 GWhJul 1913Dec 2023 Water
South Windsor Fuel CellSouth Energy Investments LLCSouth Windsor, CT39 GWhFeb 2020Dec 2023 Natural Gas
Aziscohos Hydroelectric ProjectBrookfield White Pine Hydro LLCWilson Mills, ME39 GWhMay 1988Dec 2023 Water
Rainbow (CT)Farmington River Power CompanyWindsor, CT38 GWhNov 1925Aug 2024 Water
Fusion Solar Center LLCFusion Solar Centre, L.L.CBaltic, CT38 GWhFeb 2018Aug 2024 Solar
Deer Island Treatment PlantMassachusetts Wtr Rauth-Deer IWinthrop, MA38 GWhJul 1995Aug 2024 Other Biomass Gas : 70.5% Distillate Fuel Oil : 16.1% Water : 10.2% Solar : 1.6% Wind : 1.6%
ShawmutBrookfield White Pine Hydro LLCShawmut, ME37 GWhDec 1912Dec 2023 Water
NE Renewable Fitchburg, LLCNE Renewable Fitchburg, LLCWestminster, MA36 GWhJul 1992Dec 2023 Wood/Wood Waste Solids : 97.6% Natural Gas : 2.4%
Chace Mill Winooski OneCity of Burlington Electric - (VT)Winooski, VT36 GWhMar 1993Dec 2023 Water
PetersonGreen Mountain Power CorpMilton, VT36 GWhJan 1948Dec 2023 Water
Montville StationNRG Montville Operations IncUncasville, CT36 GWhDec 1953Dec 2023 Residual Fuel Oil : 65.3% Natural Gas : 33.4% Distillate Fuel Oil : 1.3%
West BuxtonBrookfield White Pine Hydro LLCBuxton, ME36 GWhDec 1903Dec 2023 Water
ShermanGreat River Hydro, LLCRowe, MA35 GWhNov 1926Dec 2023 Water
Ellsworth Hydro StationBrookfield Black Bear Hydro, LLCEllsworth, ME35 GWhJun 1924Dec 2023 Water
Dartmouth Power Associates LPMorris Energy Operations Company, LLCDartmouth, MA35 GWhFeb 1992Dec 2023 Natural Gas : 99.0% Distillate Fuel Oil : 1.0%
ProctorGreen Mountain Power CorpProctor, VT35 GWhJul 1905Dec 2023 Water
Deerfield 3Great River Hydro, LLCBuckland, MA34 GWhJul 1912Dec 2023 Water
Subase Microgrid ProjectConnecticut Mun Elec Engy CoopGroton, CT34 GWhNov 2022Dec 2023 Natural Gas
Naval Sub Base New London Fuel CellGroton Station Fuel Cell, LLCGroton, CT34 GWhNov 2022Dec 2023 Natural Gas
Pittsfield Generating LPPittsfield Generating Company, LPPittsfield, MA34 GWhJun 1990Aug 2024 Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Fife BrookBear Swamp Power Company LLCFlorida, MA33 GWhSep 1974Dec 2023 Water
Nutmeg SolarNutmeg Solar LLCEnfield, CT33 GWhNov 2020Dec 2023 Solar
Huntington FallsGreen Mountain Power CorpWeybridge, VT33 GWhSep 1988Dec 2023 Water
Eastman FallsCentral Rivers Power NH, LLCFranklin, NH33 GWhJul 1937Dec 2023 Water
S D Warren WestbrookElevate Power Management LLCWestbrook, ME33 GWhDec 1902Dec 2023 Water
Dodge Falls AssociatesDodge Falls Associates LPBath, NH32 GWhNov 1990Dec 2023 Water
Potter Station 2Town of Braintree - (MA)Braintree, MA32 GWhJun 1963Dec 2023 Natural Gas : 88.2% Distillate Fuel Oil : 11.8%
NE Renewable Springfield, LLCNE Renewable Springfield, LLCSpringfield, NH32 GWhNov 1987Dec 2023 Wood/Wood Waste Solids
Berkshire Wind Power ProjectMassachusetts Mun Wholes Electric CoLanesboro, MA32 GWhApr 2011Aug 2024 Wind
Penobscot Energy RecoveryESOCO Orrington LLCOrrington, ME31 GWhOct 1987May 2023 Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.3% Distillate Fuel Oil : 1.6%
Eastern Maine Medical CenterEastern Maine Medical CenterBangor, ME31 GWhSep 2006Aug 2024 Natural Gas
Otis HydroEagle Creek Renewable Energy, LLCLivermore Falls, ME31 GWhDec 1984Aug 2024 Water
North Stonington Solar Center, LLCAdapture Renewables, Inc.North Stonington, CT31 GWhSep 2022Dec 2023 Solar
Fitchburg Gas RecoveryWM Renewable Energy LLCWestminster, MA31 GWhSep 2007Dec 2023 Landfill Gas
New Haven HarborGeneration Bridge II Connecticut, LLCNew Haven, CT30 GWhJun 1975Aug 2024 Natural Gas : 83.2% Kerosene : 16.8%
CoreSite - SomervilleBloom EnergySomerville, MA30 GWhAug 2020Dec 2023 Natural Gas
Deerfield 4Great River Hydro, LLCBuckland, MA29 GWhJul 1912Dec 2023 Water
Norton Powerhouse 2Norton Powerhouse 2Worcester, MA29 GWhOct 2022Dec 2023 Natural Gas

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator191.5 TWh1,943
#9Tennessee Valley Authority157.5 TWh170
#10Florida Power & Light Co.147.7 TWh159
#12New York Independent System Operator130.0 TWh1,100
#13Duke Energy Carolinas110.9 TWh556
#15ISO New England102.8 TWh1,487
#16Bonneville Power Administration80.0 TWh158
#17Duke Energy Progress East63.3 TWh554
#18Salt River Project Agricultural Improvement and Power District59.0 TWh45
#19PacifiCorp East52.6 TWh204