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 2025
Annual Generation 105.5 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 | 26% Water | 5% Other Fuel | 4.4% Wind | 4% Solar | 1.5% Coal | 0.4%

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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
Medtronic - New Haven 2Bloom EnergyNorth Haven, CT16 GWhSep 2020Dec 2024 Natural Gas
Medway HydroBrookfield Black Bear Hydro, LLCMedway, ME23 GWhDec 1922Dec 2024 Water
MendonBWC Box Pond LLCMendon, MA4 GWhNov 2017Dec 2024 Solar
Merrill Road SolarNextGrid Mangrove, LLCLewiston, ME7 GWhFeb 2022Dec 2024 Solar
Merrimac SolarConsolidated Edison Development Inc.Merrimac, MA2 GWhNov 2013Dec 2024 Solar
MerrimackGranite Shore PowerBow, NH364 GWhNov 1960Sep 2025 Bituminous Coal : 99.7%
Merrimack Solar Farm, LLCMerrimack Solar FarmMerrimack, NH4 GWhDec 2018Dec 2024 Solar
Messalonskee 2 (Oakland)Messalonskee Stream Hydro LLCOakland, ME11 GWhDec 1923Dec 2024 Water
Messalonskee 3Messalonskee Stream Hydro LLCOakland, ME7 GWhDec 1917Dec 2024 Water
Messalonskee 5Messalonskee Stream Hydro LLCWaterville, ME3 GWhDec 1934Dec 2024 Water
Methuen LandfillCleanCapital HoldingsMethuen, MA2 GWhJun 2013Dec 2024 Solar
MEVS DOT 109MEVS DOT, LLCAugusta, ME4 GWhJun 2023Dec 2024 Solar
MHG WallingfordStandard SolarWallingford, VT4 GWhNov 2019Dec 2024 Solar
Middlebury CollegeMiddlebury College BiomassMiddlebury, VT2 GWhDec 1979Sep 2025 Wood/Wood Waste Solids : 62.2% Natural Gas : 37.8%
Middlesex 2Green Mountain Power CorpMoretown, VT10 GWhDec 1927Dec 2024 Water
Middleton Solar ParkHG Solar Development, LLCMiddleton, MA7 GWhMay 2018Dec 2024 Solar
MiddletownMiddletown Power LLCMiddletown, CT33 GWhSep 1958Dec 2024 Residual Fuel Oil : 60.6% Natural Gas : 39.3%
Milford Hydro StationBrookfield Black Bear Hydro, LLCMilford, ME37 GWhJun 1941Dec 2024 Water
Milford Power LPMilford Power LLCMilford, MA253 GWhFeb 1993Dec 2024 Natural Gas
Milford Power ProjectMilford Power Co LLCMilford, CT4 TWhJan 2004Sep 2025 Natural Gas
Millbury MA #1092Millbury MA #1092 LLCMillbury, MA2 GWhMay 2019Dec 2024 Solar
Millbury SolarEvergreen Wind, LLCMillbury, MA4 GWhMar 2014Dec 2024 Solar
Millennium PowerMillennium Power Company, LLCCharlton, MA482 GWhMar 2001Sep 2025 Natural Gas
Millis MA 1Millis MA 1 LLCMillis, MA2 GWhOct 2018Dec 2024 Solar
MillstoneDominion Energy Nuclear Conn IncWaterford, CT16 TWhNov 1975Sep 2025 Nuclear
Milo CSGMilo CSG, LLCMilo, ME7 GWhJan 2022Dec 2024 Solar
Milo PV - BD Solar 1 LLCBD Solar 1 LLCMilo, ME31 GWhMay 2021Dec 2024 Solar
MiltonGreen Mountain Power CorpMilton, VT44 GWhJan 1929Dec 2024 Water
Milton HydroSFR Hydro CorMilton, NH6 GWhDec 1913Dec 2024 Water
Mine Falls Generating StationCity of Nashua, NHNashua, NH13 GWhNov 1985Dec 2024 Water
Missile Street (CSG)Nautilus Solar SolutionsPresque Island, ME4 MWhNov 2024Dec 2024 Solar
MM Taunton EnergyMM Taunton Energy LLCTaunton, MA6 GWhAug 1997Dec 2024 Landfill Gas
MMWAC Resource Recovery FacilityMaine Waste to EnergyAuburn, ME10 GWhMay 1992Sep 2025 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 1.9%
MonmouthMaine DG Solar Monmouth, LLCMonmouth, ME9 GWhFeb 2022Dec 2024 Solar
Monson SolarAltus Power America Management, LLCMonson, MA4 GWhJun 2014Dec 2024 Solar
Monson Solar, LLCMonson Solar, LLCMonson, MA3 GWhJul 2017Dec 2024 Solar
Montague Road SolarMontague Road Solar, LLCAmherst, MA5 GWhNov 2019Dec 2024 Solar
Montague Site 36-GrosolarNSTAR Electric CompanyMillers Falls, MA6 GWhSep 2018Sep 2025 Solar
Montville StationMontville Power LLCUncasville, CT28 GWhDec 1953Dec 2024 Natural Gas : 52.4% Residual Fuel Oil : 46.4% Distillate Fuel Oil : 1.2%
Monument ValleyLSE Lepus LLCGreat Barrington, MA3 GWhDec 2021Dec 2024 Solar
MoretownNextEra Renewable Fuels, LLCWaterbury, VT5 GWhNov 2008Dec 2023 Landfill Gas
Moretown Generating StationMoretown Hydroelectric LLCMoretown, VT3 GWhDec 1988Dec 2023 Water
Morin Solar 2013 LLCCVI CleanCapital Solar 6Warren, MA5 GWhNov 2013Dec 2024 Solar
MorrisvilleVillage of Morrisville - (VT)Morrisville, VT5 GWhJul 1924Dec 2024 Water
MoscowGreenbacker Renewable Energy CorporationMoscow, ME14 GWh-Sep 2025 Wind
Mt. Tom Solar Project HybridMt. Tom Solar, LLCHolyoke, MA4 GWhDec 2016Dec 2024 Solar
Mt Wachusett Community CollegeMt Wachusett Community CollegeGardner, MA4 GWhFeb 2011Sep 2025 Wind
Mystic Generating StationConstellation Mystic Power LLCCharlestown, MA2 TWhMay 1969Mar 2024 Natural Gas
NaplesNaples Casco Solar 1, LLCNaples, ME3 GWhNov 2021Dec 2024 Solar
Nashua PlantNextEra Renewable Fuels, LLCNashua, NH13 GWhMar 1996Dec 2024 Landfill Gas
Natick MallNatick MallNatick, MA4 GWhSep 2018Dec 2024 Solar
NationwideNationwide Solar Energy LLCLancaster, MA5 GWhMay 2021Dec 2024 Solar
Nautilus Goat Island Solar LLC (CSG)Nautilus Solar SolutionsBurrillville, RI4 GWhJul 2019Dec 2024 Solar
Naval Sub Base New London Fuel CellGroton Station Fuel Cell, LLCGroton, CT44 GWhNov 2022Dec 2024 Natural Gas
NBC Field's Point Wind FarmNarragansett Bay CommissionProvidence, RI7 GWhSep 2012Sep 2025 Wind
NE Renewable Fitchburg, LLCNE Renewable Fitchburg, LLCWestminster, MA61 GWhJul 1992Dec 2024 Wood/Wood Waste Solids : 98.1% Natural Gas : 1.9%
NE Renewable Springfield, LLCNE Renewable Springfield, LLCSpringfield, NH33 GWhNov 1987Dec 2024 Wood/Wood Waste Solids
NE Renewable Whitefield, LLCNE Renewable Whitefield, LLCWhitefield, NH54 GWhFeb 1988Dec 2024 Wood/Wood Waste Solids
Nebraska Valley Solar FarmTown of Stowe- (VT)Stowe, VT1 GWhJul 2016Dec 2024 Solar
NEDC Solar SiteMassachusetts Electric CoWhitinsville, MA979 MWhMay 2010Dec 2024 Solar
New Bedford (MA) PlymouthBWC Origination 4, LLCPlymouth, MA7 GWhJun 2014Dec 2024 Solar
New England Wind LLCAvangrid Power LLCFlorida, MA75 GWhNov 2012Sep 2025 Wind
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%
New MarlboroughSunrise on Knight Rd. LLCNew Marlborough, MA7 GWhMay 2021Dec 2024 Solar
New Milford Gas RecoveryWM Renewable Energy LLCNew Milford, CT5 GWhApr 2008Dec 2024 Landfill Gas
Newfound HydroelectricEagle Creek Renewable Energy, LLCBristol, NH4 GWhNov 1983Dec 2024 Water
NewingtonGranite Shore PowerNewington, NH95 GWhMay 1974Aug 2025 Natural Gas : 60.0% Residual Fuel Oil : 39.5% Distillate Fuel Oil : 0.6%
Newington Energy CenterEssential Power Operating Services, LLCNewington, NH2 TWhSep 2002Sep 2025 Natural Gas : 95.7% Distillate Fuel Oil : 4.3%
NewportGreat Bay Hydro CorpNewport, VT21 GWhDec 1935Dec 2024 Water
Newton Rumford LandfillNewton Municipal Solar LLC - RumfordNewton, MA3 GWhJun 2017Dec 2024 Solar
Nexamp Peak CSGNexamp Peak, LLCHancock, MA2 GWhNov 2015Dec 2024 Solar
Next Generation Solar FarmCypress Creek RenewablesNew Haven, VT4 GWhNov 2017Dec 2024 Solar
Nextsun Energy LittletonGreenbacker Renewable Energy CorporationLittleton, MA5 GWhSep 2013Dec 2024 Solar
NFM Solar Power LLCFirstLight Power Resources, Inc. - MANorthfield, MA2 GWhFeb 2012Dec 2024 Solar
Niagara Bottling - BloomfieldWestbound Solar 3, LLCBloomfield, CT5 GWhOct 2022Dec 2024 Solar
Niagara Depot SolarNiagara Depot Solar, LLCNiagara Falls, NY5 GWhJun 2023Dec 2024 Solar
NolanLSE Crater LLCGreat Barrington, MA2 GWhOct 2017Dec 2024 Solar
Norcap NorthLSE Canes Venatici LLCEast Windsor, CT3 GWhNov 2017Dec 2024 Solar
Norcap SouthLSE Coma Berenices LLCEast Windsor, CT4 GWhNov 2017Dec 2024 Solar
Norfolk Landfill Solar ProjectNJR Clean Energy Ventures CorporationNorfolk, CT494 MWhNov 2024Dec 2024 Solar
North Adams LandfillSyncarpha North Adams, LLCNorth Adams, MA3 GWhSep 2015Dec 2024 Solar
North BridgtonNautilus Solar SolutionsOakland, ME8 GWhOct 2022Dec 2024 Solar
North BrookfieldMass Solar, LLCNorth Brookfield, MA4 GWhMay 2014Dec 2024 Solar
North GorhamBrookfield White Pine Hydro LLCGorham, ME7 GWhDec 1924Dec 2024 Water
North Haven Solar OneNorth Haven Solar One, LLCNorth Haven, CT3 GWhFeb 2024Dec 2024 Solar
North Kingstown Solar LLCNorth Kingstown Solar LLCNorth Kingstown, RI3 GWhAug 2022Dec 2024 Solar
North Nobleboro Road, LLCREA Investments, LLCWaldoboro, ME4 GWhMay 2021Dec 2024 Solar
North ProvidenceCaptona N.P. LLCNorth Providence, RI3 GWhSep 2018Dec 2024 Solar
North Smithfield Solar Power 1AEP Onsite Partners, LLCNorth Smithfield, RI1 GWhNov 2018Dec 2024 Solar
North Stonington Solar Center, LLCAdapture Renewables, Inc.North Stonington, CT30 GWhSep 2022Dec 2024 Solar
Northampton Landfill Solar PVAmeresco Glendale Road Solar PV LLCNorthampton, MA4 GWhOct 2017Dec 2024 Solar
Northbridge SolarConsolidated Edison Development Inc.South Grafton, MA3 GWhJul 2013Dec 2024 Solar
NortonMadison Energy Holdings LLCNorton, MA1 GWhFeb 2023Dec 2024 Solar
Norton Landfill SolarCitizens Enterprises CorporationNorton, MA2 GWhDec 2016Dec 2024 Solar
Norton LLCGreenbacker Renewable Energy CorporationNorton, MA4 GWhAug 2020Apr 2024 Solar
Norton Powerhouse 2Norton Powerhouse 2Worcester, MA29 GWhOct 2022Dec 2024 Natural Gas
Norwich WWTPCity of Norwich - (CT)Norwich, CT1 MWhApr 2006Mar 2024 Distillate Fuel Oil
Notus Wind 1Notus Clean Energy LLCE. Falmouth, MA4 GWhJun 2010Dec 2024 Wind
NunnepogClean Focus Yield, LLCEdgartown, MA2 GWhMay 2014Dec 2024 Solar
Nutmeg SolarNutmeg Solar LLCEnfield, CT34 GWhNov 2020Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.0 TWh2,075
#9Tennessee Valley Authority161.6 TWh204
#10Florida Power & Light Co.148.9 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.5 TWh565
#15ISO New England105.5 TWh1,577
#16Bonneville Power Administration80.5 TWh163
#17Duke Energy Progress East64.3 TWh559
#18PacifiCorp East61.1 TWh216
#19Salt River Project Agricultural Improvement and Power District60.0 TWh48