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 Dec 2025
Annual Generation 105.8 TWh
Power Plants1,577
Utilities819
Ranked #15 out of 65 in terms of net annual generation
Ranked #12 out of 53 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 55.8% Nuclear | 25.9% Water | 5% Other Fuel | 4.4% Wind | 4% Solar | 1.5% Coal | 0.3%

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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 701 to 800 of 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
EHC West HopkintonGreen Mountain Power CorpWest Hopkinton, NH3 GWhJun 1985Jul 2024 Water
RollinsfordGreen Mountain Power CorpRollinsford, NH2 GWhSep 1986Dec 2024 Water
CavendishGreen Mountain Power CorpCavendish, VT830 MWhJan 1907Dec 2024 Water
WeybridgeGreen Mountain Power CorpWeybridge, VT14 GWhJan 1951Dec 2024 Water
Mascoma HydroGreen Mountain Power CorpW. Lebanon, NH2 GWhNov 1988Dec 2024 Water
ME-EDFR-Phase I-WoolwichGreen Mile Solar, LLCWoolwich, ME7 GWhAug 2023Dec 2024 Solar
HarrimanGreat River Hydro, LLCWhitingham, VT91 GWhApr 1924Dec 2024 Water
Deerfield 4Great River Hydro, LLCBuckland, MA20 GWhJul 1912Dec 2024 Water
Deerfield 3Great River Hydro, LLCBuckland, MA25 GWhJul 1912Dec 2024 Water
Deerfield 5Great River Hydro, LLCFlorida, MA42 GWhSep 1974Dec 2024 Water
McindoesGreat River Hydro, LLCBarnet, VT53 GWhDec 1930Dec 2024 Water
Deerfield 2Great River Hydro, LLCConway, MA29 GWhJul 1913Dec 2024 Water
ShermanGreat River Hydro, LLCRowe, MA27 GWhNov 1926Dec 2024 Water
ComerfordGreat River Hydro, LLCMonroe, NH400 GWhAug 1930Dec 2024 Water
Bellows FallsGreat River Hydro, LLCBellow Falls, VT264 GWhFeb 1928Dec 2024 Water
S C MooreGreat River Hydro, LLCLittleton, NH341 GWhDec 1956Dec 2024 Water
Vernon DamGreat River Hydro, LLCVernon, VT160 GWhJul 1909Dec 2024 Water
WilderGreat River Hydro, LLCHartford, VT179 GWhOct 1950Dec 2024 Water
SearsburgGreat River Hydro, LLCSearsburg, VT15 GWhFeb 1922Dec 2024 Water
Great Lakes Hydro America - MEGreat Lakes Hydro America LLCMillinocket, ME571 GWhJun 1917Dec 2024 Water
Berlin GorhamGreat Lakes Hydro America LLCBerlin, NH133 GWhDec 1913Dec 2024 Water
NewportGreat Bay Hydro CorpNewport, VT21 GWhDec 1935Dec 2024 Water
Gravel Pit Solar, LLCGravel Pit Solar, LLCEast Windsor, CT113 GWh-Sep 2025 Solar
White LakeGranite Shore PowerTamworth, NH484 MWhJun 1968Dec 2024 Jet Fuel
NewingtonGranite Shore PowerNewington, NH95 GWhMay 1974Aug 2025 Natural Gas : 60.0% Residual Fuel Oil : 39.5% Distillate Fuel Oil : 0.6%
Lost NationGranite Shore PowerGroveton, NH422 MWhAug 1969Dec 2024 Distillate Fuel Oil
MerrimackGranite Shore PowerBow, NH364 GWhNov 1960Sep 2025 Bituminous Coal : 99.7%
SchillerGranite Shore PowerPortsmouth, NH590 MWhSep 1952Sep 2025 Jet Fuel
Granite RidgeGranite Ridge Energy LLCLondonderry, NH3 TWhFeb 2003Sep 2025 Natural Gas
Granby Solar, LLC CSGGranby Solar, LLCGranby, MA6 GWhJun 2021Dec 2024 Solar
Golden Hills SolarGolden Hills Solar, LLCRutland, MA8 GWhAug 2017Dec 2024 Solar
New Haven HarborGeneration Bridge II Connecticut, LLCNew Haven, CT93 GWhJun 1975Sep 2025 Natural Gas : 72.8% Residual Fuel Oil : 17.4% Distillate Fuel Oil : 6.4% Kerosene : 3.3%
Bridgeport StationGeneration Bridge II Connecticut, LLCBridgeport, CT4 TWhJul 1961Sep 2025 Natural Gas : 98.6% Distillate Fuel Oil : 1.4%
Generate Colchester Fuel Cells, LLCGenerate Colchester Fuel Cells, LLCColchester, CT77 GWhSep 2021Dec 2024 Natural Gas
General Electric Aircraft EnginesGeneral Electric Aircraft EnginesLynn, MA2 GWhDec 1947Sep 2025 Solar
GenConn Middletown LLCGenConn Middletown LLCMiddletown, CT6 GWhMay 2011Dec 2024 Kerosene : 57.4% Natural Gas : 42.6%
GenConn Devon LLCGenConn Devon LLCMilford, CT4 GWhMay 2010Dec 2024 Kerosene : 90.3% Natural Gas : 9.7%
GDIM 4, LLCGDIM 4, LLCNorth Smithfield, RI14 GWhNov 2021Dec 2024 Solar
GDIM 3, LLCGDIM 3, LLCNorth Smithfield, RI15 GWhNov 2021Dec 2024 Solar
GDIM 2, LLCGDIM 2, LLCNorth Smithfield, RI13 GWhNov 2021Dec 2024 Solar
GDIM 1, LLCGDIM 1, LLCNorth Smithfield, RI14 GWhNov 2021Dec 2024 Solar
GD West Greenwich Victory I, LLCGD West Greenwich Victory I, LLCWest Greenwich, RI3 GWhNov 2019Dec 2024 Solar
GD West Greenwich Nooseneck I, LLCGD West Greenwich Nooseneck I, LLCWest Greenwich, RI33 GWhNov 2022Dec 2024 Solar
GD Richmond Buttonwoods I, LLCGD Richmond Buttonwoods I, LLCRichmond, RI2 GWhNov 2019Dec 2024 Solar
GD Johnson Scituate I, LLCGD Johnson Scituate I, LLCCranston, RI6 GWhNov 2021Dec 2024 Solar
GD Hopkinton Main I, LLCGD Hopkinton Main I, LLCHopkinton, RI16 GWhOct 2020Dec 2024 Solar
GD Glocester White Oak I, LLCGD Glocester White Oak I, LLCGlocester, RI3 GWhNov 2020Dec 2024 Solar
Gardner Solar 1Gardner Solar 1, LLCGardner, MA3 GWhApr 2014Dec 2024 Solar
Fusion Solar Center LLCFusion Solar Centre, L.L.CBaltic, CT40 GWhFeb 2018Sep 2025 Solar
Frito Lay IncorporatedFrito Lay Incorporated DayvilleDayville, CT24 GWhFeb 2009Sep 2025 Natural Gas
French King Solar LLCFrench King Solar LLCErving, MA8 GWhOct 2022Dec 2024 Solar
CVEC Round 4 Brewster Captn Golf CourseFreemans Way Solar Project 2019, LLCBrewster, MA1 GWhFeb 2022Dec 2024 Solar
Framingham State University PlantFramingham State UniversityFramingham, MA41 MWhMay 1974Sep 2025 Solar : 78.0% Distillate Fuel Oil : 22.0%
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME66 GWhDec 1956Sep 2025 Residual Fuel Oil : 99.2% Distillate Fuel Oil : 0.8%
Cape Gas TurbineFPL Energy Cape LLCPortland, ME111 MWhDec 1969Dec 2024 Distillate Fuel Oil
Foxwoods CoGenFoxwoods Resort CasinoMashantucket, CT11 GWhMay 2010Dec 2024 Natural Gas
Fox Island Wind LLCFox Island Wind LLCVinalhaven, ME8 GWhOct 2009Dec 2024 Wind
Foster SolarFoster Solar, LLCNorth Scituate, RI2 GWhJul 2016Dec 2024 Solar
Hampton FacilityFoss Manufacturing Company LLCHampton, NH24 GWhSep 1978Sep 2025 Natural Gas
Fitchburg RenewablesFitchburg Renewables, LLCFitchburg, MA6 GWhFeb 2020Dec 2024 Solar
Fisher Road SolarFisher Road Solar I, LLCDartmouth, MA8 GWhApr 2015Dec 2024 Solar
CabotFirstLight Power Resources, Inc. - MAMontague, MA304 GWhDec 1914Dec 2024 Water
NFM Solar Power LLCFirstLight Power Resources, Inc. - MANorthfield, MA2 GWhFeb 2012Dec 2024 Solar
Turners FallsFirstLight Power Resources, Inc. - MAMontague, MA12 GWhDec 1904Dec 2024 Water
Bulls BridgeFirstLight Power Resources Services LLCNew Milford, CT31 GWhDec 1902Dec 2024 Water
TunnelFirstLight Power Resources Services LLCPreston, CT8 GWhDec 1918Dec 2024 Water
TaftvilleFirstLight Power Resources Services LLCTaftville, CT3 GWhDec 1905Dec 2024 Water
StevensonFirstLight Power Resources Services LLCMonroe, CT96 GWhDec 1918Dec 2024 Water
Falls VillageFirstLight Power Resources Services LLCFalls Village, CT30 GWhDec 1913Dec 2024 Water
ShepaugFirstLight Power Resources Services LLCSouthbury, CT117 GWhDec 1954Dec 2024 Water
Scotland DamFirstLight Power Resources Services LLCWindham, CT7 GWhDec 1936Dec 2024 Water
Federal Road Solar 1, LLC CSGFederal Road Solar 1, LLCSouth Carver, MA8 GWhNov 2015Dec 2024 Solar
Faunce Corner Community SolarFaunce Corner Road Dartmouth Solar 1, LLCDartmouth, MA2 GWhJun 2022Dec 2024 Solar
Farmington SolarFarmington Solar, LLCFarmington, ME129 GWhSep 2021Sep 2025 Solar
Rainbow (CT)Farmington River Power CompanyWindsor, CT20 GWhNov 1925Sep 2025 Water
Farley Road Community SolarFarley Road Solar, LLCDudley, MA2 GWhJul 2017Dec 2024 Solar
Fairhaven WindFairhaven Wind LLCFairhaven, MA4 GWhMar 2012Dec 2024 Wind
Fairhaven EFairhaven MA 1, LLCFairhaven, MA3 GWhJul 2021Dec 2024 Solar
Fairfield University CHP PlantFairfield UniversityFairfield, CT26 GWhSep 2007Dec 2024 Natural Gas
Sheldon SolarExcelsior Energy CapitalSheldon Springs, VT3 GWhAug 2013Dec 2024 Solar
Bull Hill Wind ProjectEvergreen Wind, LLCEastbrook, ME74 GWhSep 2012Dec 2024 Wind
Millbury SolarEvergreen Wind, LLCMillbury, MA4 GWhMar 2014Dec 2024 Solar
Mass Midstate Solar 1Evergreen Wind, LLCWarren, MA7 GWhApr 2014Dec 2024 Solar
Stetson Wind IEvergreen Wind, LLCDanforth, ME121 GWhDec 2008Dec 2024 Wind
Mass Midstate Solar 2Evergreen Wind, LLCWarren, MA7 GWhApr 2014Dec 2024 Solar
Rollins Wind ProjectEvergreen Wind, LLCWinn Village, ME136 GWhJun 2011Dec 2024 Wind
Stetson Wind IIEvergreen Wind, LLCDanforth, ME50 GWhFeb 2010Dec 2024 Wind
Sheffield WindEvergreen Wind, LLCSheffield, VT73 GWhSep 2011Sep 2025 Wind
Mass Midstate Solar 3Evergreen Wind, LLCWarren, MA6 GWhApr 2014Dec 2024 Solar
Benton Falls AssociatesEssex Hydro Associates LLCBenton, ME4 GWhNov 1987Dec 2024 Water
Newington Energy CenterEssential Power Operating Services, LLCNewington, NH2 TWhSep 2002Sep 2025 Natural Gas : 95.7% Distillate Fuel Oil : 4.3%
Whitcomb Solar FarmERWR Whitcomb Farm Solar LLCEssex Junction, VT3 GWhSep 2014Dec 2024 Solar
Erving CSGErving Poplar Mountain Solar 1, LLCErving, MA1 GWhAug 2020Dec 2024 Solar
Erving Paper MillsErving Paper Mills IncErving, MA42 GWhNov 2013Sep 2025 Natural Gas : 98.9% Distillate Fuel Oil : 1.1%
Errol Hydroelectric ProjectErrol Hydroelectric Co LLCErrol, NH15 GWhOct 1986Dec 2024 Water
Waterbury GenerationEngie North AmericaWaterbury, CT44 GWhMay 2009Dec 2024 Natural Gas : 99.8%
ENGIE 2019 ProjectCo-MA1, LLCENGIE 2019 ProjectCo MA-1, LLCAgawam, MA6 GWhFeb 2021Dec 2024 Solar
Enfield Solar OneEnfield Solar One, LLCHartford, CT5 GWhMar 2024Dec 2024 Solar
Emerald Marshfields, LLCEmerald Marshfield, LLCMarshfield, MA2 GWhNov 2022Dec 2024 Solar
Emerald Gardens PKI, LLCEmerald Gardens PKI, LLCShelton, CT2 GWhSep 2021Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.2 TWh2,075
#9Tennessee Valley Authority161.7 TWh204
#10Florida Power & Light Co.149.1 TWh187
#12New York Independent System Operator131.9 TWh1,211
#13Duke Energy Carolinas112.3 TWh565
#15ISO New England105.8 TWh1,577
#16Bonneville Power Administration80.6 TWh163
#17Duke Energy Progress East64.4 TWh559
#18PacifiCorp East61.1 TWh216
#19Salt River Project Agricultural Improvement and Power District59.9 TWh48