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 to 100 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Jiminy Peak Wind QFJiminy Peak Mountain Resort, LLCHancock, MA2 MWhJul 2007Apr 2025 Wind
Stanley Black & DeckerOnyx Asset Services GroupEast Longmeadow, MA6 MWhNov 2025Dec 2025 Solar
CCSU Co-Gen-STBY GenCentral Connecticut State UniversityNew Britain, CT10 MWhSep 1993Dec 2025 Natural Gas
Oak Leaf Solar XVI Community SolarNavisun LLCPittsfield, MA10 MWhNov 2025Dec 2025 Solar
NE Renewable Power JonesboroStored Solar J&WEJonesboro, ME16 MWhNov 1987Jun 2025 Gaseous Propane : 66.7% Wood/Wood Waste Solids : 33.3%
376 NashMadison Energy Investments LLCNew Bedford, MA17 MWhNov 2024Dec 2025 Solar
Wilkins StationTown of Marblehead - (MA)Marblehead, MA32 MWhOct 1975Dec 2025 Distillate Fuel Oil
Framingham State University PlantFramingham State UniversityFramingham, MA38 MWhMay 1974May 2026 Solar : 63.2% Distillate Fuel Oil : 36.8%
Oak Leaf Solar XVII Community SolarNavisun LLCPittsfield, MA47 MWhNov 2025Dec 2025 Solar
Chocksett Rd Energy Storage ProjectSterling Municipal Light Department - (MA)Sterling, MA62 MWhMar 2017Dec 2025 Electricity used for energy storage
665 Scenic HighwayMadison Energy Investments LLCBourne, MA89 MWhNov 2022Dec 2025 Solar
Redman North Community SolarAES Distributed EnergyBrockport, NY106 MWhJan 2022Dec 2025 Solar
Fishers Island 1Connecticut Mun Elec Engy CoopFisher's Island, NY129 MWhNov 2010Dec 2025 Distillate Fuel Oil
Jewett City 1Connecticut Mun Elec Engy CoopJewett City, CT139 MWhJan 2010Dec 2025 Distillate Fuel Oil
Orbit Energy RIAnaergiaJohnston, RI144 MWhJun 2017Dec 2024 Other Biomass Gas
20 BedfordMadison Energy Investments LLCBridgewater, MA146 MWhNov 2024Dec 2025 Solar
Lee Site 31 SolarNSTAR Electric CompanyLee, MA149 MWhJul 2018Dec 2025 Solar
High Street StationTown of Ipswich - (MA)Ipswich, MA153 MWhMay 1937Dec 2025 Natural Gas : 92.3% Distillate Fuel Oil : 7.7%
Three Rivers Solar LLCASD Three Rivers Road MA Solar LLCWilbraham, MA154 MWhOct 2024Dec 2024 Solar
Mascoma HydroGreen Mountain Power CorpW. Lebanon, NH202 MWhNov 1988Dec 2025 Water
Spring Hill RoadAES Distributed EnergyBarre, MA243 MWhNov 2015May 2026 Solar
BJ's Wholesale Club, Inc- UxbridgeTesla Inc.Uxbridge, MA270 MWhJun 2017Dec 2024 Solar
TorringtonConnecticut Jet Power LLCTorrington, CT277 MWhOct 1967Dec 2025 Kerosene
BranfordConnecticut Jet Power LLCBranford, CT288 MWhOct 1967Dec 2025 Kerosene
M Street JetMassachusetts Bay Trans AuthBoston, MA294 MWhApr 1979Dec 2025 Kerosene
Franklin DriveConnecticut Jet Power LLCTorrington, CT294 MWhOct 1968Dec 2025 Kerosene
Colchester 16Green Mountain Power CorpColchester, VT310 MWhSep 1965Dec 2025 Distillate Fuel Oil
Cherry StreetTown of Hudson - (MA)Hudson, MA320 MWhApr 1951Dec 2025 Distillate Fuel Oil : 58.5% Natural Gas : 41.5%
Wrightsville Hydro PlantWashington Electric Coop - (VT)Montpelier, VT374 MWhAug 1985Dec 2025 Water
Lebanon Pines 1 & 2Connecticut Mun Elec Engy CoopLebanon, CT374 MWhMar 2010Dec 2025 Distillate Fuel Oil
Gary Court 1 & 2Connecticut Mun Elec Engy CoopGroton, CT381 MWhJun 2010Dec 2025 Distillate Fuel Oil
LNG 1 & 2Connecticut Mun Elec Engy CoopNorwich, CT382 MWhMar 2010Dec 2025 Distillate Fuel Oil
Stafford Hill Solar HybridGreen Mountain Power CorpRutland, VT390 MWhFeb 2015May 2026 Solar
Lost NationGranite Shore PowerGroveton, NH422 MWhAug 1969Dec 2024 Distillate Fuel Oil
Centech Gas GeneratorTown of Shrewsbury - (MA)Shrewsbury, MA428 MWhMar 2019Dec 2025 Natural Gas
AscutneyGreen Mountain Power CorpWeatherfield, VT437 MWhJul 1961May 2026 Distillate Fuel Oil
West Boylston Community Shared SolarTown of West Boylston - (MA)West Boylston, MA447 MWhNov 2016Dec 2025 Solar
Bridge Street 1 & 2Connecticut Mun Elec Engy CoopGroton, CT452 MWhJun 2010Dec 2025 Distillate Fuel Oil
Acton Solar LandfillHeliovaas LLCActon, MA475 MWhNov 2013Dec 2025 Solar
White LakeGranite Shore PowerTamworth, NH484 MWhJun 1968Dec 2024 Jet Fuel
Water Treatment 1 & 2Connecticut Mun Elec Engy CoopGroton, CT494 MWhSep 2010May 2026 Distillate Fuel Oil
Somersworth Lower Great DamGreen Mountain Power CorpSomersworth, NH498 MWhJun 1985Dec 2025 Water
1 CommercialMadison Energy Investments LLCSharon, MA622 MWhAug 2023Oct 2025 Solar
Cosgrove Intake and Power StationMassachusetts Water Res AuthClinton, MA646 MWhDec 1968Jan 2025 Water
Burlington GTCity of Burlington Electric - (VT)Burlington, VT684 MWhAug 1971Dec 2025 Distillate Fuel Oil
W K SandersVillage of Morrisville - (VT)Hyde Park, VT716 MWhJun 1983Nov 2025 Water
Fort Hill 1, 2, 3 & 4Connecticut Mun Elec Engy CoopUncasville, CT734 MWhJul 2010May 2026 Distillate Fuel Oil
East Windsor Solar TwoEast Windsor Solar Two, LLCEast Windsor, CT749 MWhAug 2025Dec 2025 Solar
Cape Gas TurbineFPL Energy Cape LLCPortland, ME752 MWhDec 1969Dec 2025 Distillate Fuel Oil
ZPD-PT Solar Project 2017-044 LLC CSGAES Distributed EnergySpencer, MA812 MWhSep 2021Dec 2025 Solar
118 EchoMadison Energy Investments LLCMashpee, MA814 MWhJun 2023Dec 2025 Solar
Glastonbury Solar OneNJR Clean Energy Ventures CorporationGlastonbury, CT821 MWhAug 2025Dec 2025 Solar
Backus Microgrid ProjectConnecticut Mun Elec Engy CoopNorwich, CT843 MWhJul 2014May 2026 Distillate Fuel Oil
East WindsorNJR Clean Energy Ventures CorporationEast Windsor, CT869 MWhAug 2025Dec 2025 Solar
Wilson Solar (MA)RWE Clean EnergySpencer, MA870 MWhMay 2013Dec 2025 Solar
SchillerGranite Shore PowerPortsmouth, NH888 MWhSep 1952May 2026 Jet Fuel
Cedarville CSGAltus Power America Management, LLCPlymouth, MA914 MWhJun 2017Dec 2025 Solar
NEDC Solar SiteMassachusetts Electric CoWhitinsville, MA953 MWhMay 2010Dec 2025 Solar
BrooksideTerraform ArcadiaNorth Smithfield, RI969 MWhOct 2015Nov 2025 Solar
Ball Mountain HydroEagle Creek Renewable Energy, LLCJamaica, VT995 MWhMar 2016Dec 2025 Water
Williamsburg Solar LLC VNEM CSGTesla Inc.Haydenville, MA1 GWhJan 2016Dec 2025 Solar
Acushnet MA 1Navisun LLCAcushnet, MA1 GWhNov 2023Dec 2025 Solar
Acushnet MA 2 (CSG)Navisun LLCAcushnet, MA1 GWhFeb 2024Dec 2025 Solar
Advance Stores Company, IncTesla Inc.Enfield, CT1 GWhOct 2014Mar 2025 Solar
IOS - MEW Phase 1Madison Energy Holdings LLCMadison, ME1 GWhDec 2016Dec 2024 Solar
UMass BostonMSS Energy Holdings, LLC (d.b.a. Calibrant Energy)Dorchester, MA1 GWhDec 1971Dec 2025 Solar
Wareham Solar PVNSTAR Electric CompanyWareham, MA1 GWhNov 2018Dec 2025 Solar
CVEC Round 4 Brewster Captn Golf CourseFreemans Way Solar Project 2019, LLCBrewster, MA1 GWhFeb 2022Dec 2025 Solar
Norton LLCGreenbacker Renewable Energy CorporationNorton, MA1 GWhAug 2020Dec 2025 Solar
Nebraska Valley Solar FarmTown of Stowe - (VT)Stowe, VT1 GWhJul 2016Dec 2025 Solar
Lowell Solar LandfillHeliovaas LLCLowell, MA1 GWhNov 2013Dec 2025 Solar
Haverhill Solar Power ProjectMassachusetts Electric CoHaverhill, MA1 GWhNov 2010Dec 2025 Solar
Bridgewater Complex Co-Generation PlantMassachusetts Department of CorrectionBridgewater, MA1 GWhOct 2015Dec 2025 Natural Gas
Exelon Framingham LLCConstellation Power, IncFramingham, MA1 GWhAug 1969Dec 2025 Distillate Fuel Oil
BWC Origination 8 LLC Sturbridge 1BWC Origination 8 LLC Sturbridge 1 LLCSturbridge, MA1 GWhJul 2017Dec 2025 Solar
MA Solar Storage 1 HybridOrigis Energy USA, IncSterling, MA1 GWhFeb 2018Dec 2025 Solar
Hartford Landfill Solar EGFMaterials Innovation Recycling AuthorityHartford, CT1 GWhMay 2014Dec 2024 Solar
CMEEC - Navy NE TridentTesla Inc.Groton, CT1 GWhMay 2017Dec 2025 Solar
Wendell MA 1Wendell MA 1 LLCWendell, MA1 GWhNov 2018Dec 2025 Solar
Dudley Landfill Solar LLCDudley Landfill Solar LLCDudley, MA1 GWhApr 2025Dec 2025 Solar
Front StreetCity of Chicopee - (MA)Chicopee, MA1 GWhDec 1977Dec 2025 Distillate Fuel Oil
EHC West HopkintonGreen Mountain Power CorpWest Hopkinton, NH1 GWhJun 1985Dec 2025 Water
Maynard PVTerraform ArcadiaMaynard, MA1 GWhDec 2013Dec 2025 Solar
Conn Mun Electric Energy CoopTesla Inc.Norwich, CT1 GWhNov 2016Dec 2025 Solar
Webster SolarWebster Solar, LLCWebster, MA1 GWhNov 2017Dec 2025 Solar
VPPSA Project 10Vermont Public Power Supply AuthoritySwanton, VT1 GWhApr 2010Dec 2025 Distillate Fuel Oil
Sudbury LandfillHeliovaas LLCSudbury, MA1 GWhNov 2013Dec 2025 Solar
ALDI DC 2PowerflexSouth Windsor, CT1 GWhJan 2018Dec 2025 Solar
Sutton Solar 2, LLC CSGSutton Solar 2, LLCSutton, MA1 GWhNov 2020Dec 2025 Solar
Benz Solar 1Ecos Energy LLCAnsonia, CT1 GWhFeb 2025Dec 2025 Solar
Benz Solar 2Ecos Energy LLCAnsonia, CT1 GWhFeb 2025Dec 2025 Solar
Town of East Bridgewater CSGTesla Inc.East Bridgewater, MA1 GWhMay 2013Dec 2025 Solar
Braintree Landfill SolarAmeresco, Inc - BraintreeBraintree, MA1 GWhNov 2014Dec 2025 Solar
Mariaville Road Elsworth Solar, LLCREA Investments, LLCEllsworth, ME1 GWhApr 2022Dec 2025 Solar
BWC Origination 8 LLC Sturbridge 2BWC Origination 8 LLC Sturbridge 2 LLCSturbridge, MA1 GWhAug 2017Dec 2025 Solar
265 Pleasant Solar NG, LLCNuGen Capital ManagementLunenburg, MA1 GWhJun 2014Dec 2025 Solar
Shirley LandfillAltus Power America Management, LLCShirley, MA1 GWhApr 2017Dec 2025 Solar
Pleasantdale Road Community SolarPleasantdale Road Solar, LLCRutland, MA1 GWhAug 2017Dec 2025 Solar
East Brookfield Main Street Solar LLC CSAES Distributed EnergyEast Brookfield, MA1 GWhNov 2020Dec 2025 Solar
Charlestown Wind TurbineMWRA CharlestownCharlestown, MA1 GWhSep 2011Dec 2025 Wind

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