ISO New England

Balancing Authority Summary Information

ISO New England is ranked #14 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 Jul 2025
Annual Generation 103.8 TWh
Power Plants1,561
Utilities814
Ranked #14 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 | 57.2% Nuclear | 24.5% Water | 6.2% Other Fuel | 4.5% Wind | 3.7% Solar | 1.4% 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 301 to 400 of 1,270
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
MMWAC Resource Recovery FacilityMaine Waste to EnergyAuburn, ME10 GWhMay 1992Apr 2025 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.9%
Augusta PV - BD Solar Augusta LLCBD Solar Augusta LLCAugusta, ME10 GWhMay 2021Dec 2024 Solar
Quinebaug Lower ProjectQuinebaug Associates LLCBrooklyn, CT10 GWhMar 1990Dec 2023 Water
Wesleyan University Cogen 1Wesleyan UniversityMiddletown, CT10 GWhJan 2009Dec 2024 Natural Gas
Dynamic Madison (CSG)MN8 Energy LLCMadison, ME10 GWhJul 2022Dec 2024 Solar
BaldwinMaine DG Solar Baldwin, LLCWest Baldwin, ME10 GWhFeb 2022Dec 2024 Solar
Blodgett Solar CSGBlodgett Street Solar 1, LLCTyngsboro, MA10 GWhJul 2021Dec 2024 Solar
Middlesex 2Green Mountain Power CorpMoretown, VT10 GWhDec 1927Dec 2024 Water
160 Tihonet Rd Hybrid(CSG)160TIH WHAM8 Solar, LLCWareham, MA10 GWhNov 2021Dec 2023 Solar
MA Military Reservation Wind ProjectAir Force Civil Engineer CenterOtis ANG Base Bourne, MA10 GWhNov 2009Dec 2024 Wind
Redman South Community SolarAES Distributed EnergyBrockport, NY10 GWhJan 2022Dec 2024 Solar
Ameresco Chicopee EnergyAMERESCO Chicopee Energy LLCChicopee, MA9 GWhJan 2004Dec 2024 Landfill Gas
Hopkins Hill CSGNautilus Solar SolutionsWest Greenwich, RI9 GWhOct 2020Dec 2024 Solar
Rhode Island HospitalRhode Island HospitalProvidence, RI9 GWhSep 1974Apr 2025 Natural Gas : 89.3% Residual Fuel Oil : 10.7%
MonmouthMaine DG Solar Monmouth, LLCMonmouth, ME9 GWhFeb 2022Dec 2024 Solar
FryeburgNautilus Solar SolutionsFryeburg, ME9 GWhApr 2023Dec 2024 Solar
Dynamic Corinth (CSG)MN8 Energy LLCCorinth, ME9 GWhSep 2022Dec 2024 Solar
Connecticut CollegeBloom EnergyNew London, CT9 GWhAug 2019Dec 2024 Natural Gas
Cenergy - Waterville (CSG)Luminace Sunbeam Development Holdings, LLCWaterville, ME9 GWhJun 2023Dec 2024 Solar
Syncarpha Puddon II Hybrid CSGSyncarpha Puddon II, LLCNorthbridge, MA9 GWhFeb 2021Dec 2024 Solar
OaklandNautilus Solar SolutionsOakland, ME9 GWhAug 2022Dec 2024 Solar
WED Coventry 2WED Coventry Two, LLCCoventry, RI9 GWhJul 2016Apr 2025 Wind
Gregg FallsEagle Creek Renewable Energy, LLCGoffstown, NH9 GWhNov 1985Dec 2024 Water
Trinity College Fuel CellAEP Onsite Partners, LLCHartford, CT9 GWhJul 2018Dec 2023 Natural Gas
Harmony SolarMaine DG Solar Harmony, LLCHarmony, ME9 GWhJul 2022Dec 2024 Solar
Goodwin HydroelectricMetropolitan Dist of HartfordW. Hartland, CT9 GWhMar 1986Dec 2024 Water
Syncarpha Northbridge I Hybrid(CSG)Syncarpha Northbridge I, LLCWhitinsville, MA9 GWhNov 2021Dec 2024 Solar
Clement Dam Hydro LLCEagle Creek Renewable Energy, LLCTilton, NH9 GWhNov 1984Dec 2024 Water
GMP Solar - Panton HybridGreen Mountain Power CorpPanton, VT9 GWhNov 2016Apr 2025 Solar : 96.3% Electricity used for energy storage : 3.7%
Kearsarge West Shore Solar LLCKearsarge West Shore Solar LLCPortsmouth, RI9 GWhNov 2022Dec 2024 Solar
Caterpillar HillAES Clean EnergySedgwick, ME9 GWhNov 2023Dec 2024 Solar
Southington Solar OneDG Connecticut III, LLCSouthington, CT9 GWhJan 2022Dec 2024 Solar
Worcester LandfillCity of Worcester DPWWorcester, MA9 GWhApr 2017Dec 2023 Solar
JackmanCentral Rivers Power NH, LLCHillsborough, NH9 GWhJan 1926Dec 2024 Water
West Street Solar 1 LLCAES Distributed EnergyGardner, MA9 GWhNov 2019Dec 2024 Solar
GMP Solar/Storage-Ferrisburgh HybridGreen Mountain Power CorpFerrisburgh, VT9 GWhAug 2019Apr 2025 Solar : 93.2% Electricity used for energy storage : 6.8%
Ryan Road Solar LLC Hybrid(CSG)AES Distributed EnergyNorth Brookfield, MA9 GWhNov 2021Dec 2024 Solar
West Haydenville PJ Community SolarAES Distributed EnergyWilliamsburg, MA9 GWhAug 2022Dec 2024 Solar
Syncarpha Puddon I Hybrid CSGSyncarpha Puddon I, LLCNorthbridge, MA9 GWhFeb 2021Dec 2024 Solar
Cenergy - Wiscasset (CSG)Luminace Sunbeam Development Holdings, LLCWiscasset, ME9 GWhJun 2023Dec 2024 Solar
East Windsor Solar OneDG Connecticut III, LLCEast Windsor, CT9 GWhNov 2021Dec 2024 Solar
Perkins Road Belfast Solar, LLCREA Investments, LLCBelfast, ME9 GWhMay 2021Dec 2024 Solar
Palmyra PV - BD Solar Palmyra LLCBD Solar Palmyra LLCPalmyra, ME8 GWhMay 2022Dec 2024 Solar
LR Wheatfield Solar 1LR Wheatfield Solar 1, LLCWheatfield, NY8 GWhSep 2020Dec 2024 Solar
Pittsfield Solar (N. Main St)Maine DG Solar Pittsfield, LLCPittsfield, ME8 GWhSep 2023Dec 2024 Solar
KilvertCaptona Kilvert Street Warwick LLCWarwick, RI8 GWhNov 2018Dec 2024 Solar
GMP Solar/Storage-Milton HybridGreen Mountain Power CorpMilton, VT8 GWhAug 2019Apr 2025 Solar : 94.0% Electricity used for energy storage : 6.0%
Sugar Hill Solar 1Sugar Hill Solar 1, LLCClifton Park, NY8 GWhNov 2020Dec 2024 Solar
Blacksmith Road Solar 1Blacksmith Road Solar 1, LLCFalmouth, MA8 GWhNov 2021Dec 2023 Solar
North BridgtonNautilus Solar SolutionsOakland, ME8 GWhOct 2022Dec 2024 Solar
Southwick Solar PVNSTAR Electric CompanySouthwick, MA8 GWhDec 2018Apr 2025 Solar
Wilbur Woods Solar LLCAES Distributed EnergyOrange, MA8 GWhAug 2021Dec 2024 Solar
Syncarpha Northbridge II Hybrid CSGSyncarpha Northbridge II, LLCWhitinsville, MA8 GWhMar 2021Dec 2023 Solar
Adirondack A+B Community Solar GardenBWC Connecticut River LLCWestport, MA8 GWhNov 2018Dec 2024 Solar
Clark Road Solar 1, LLCClark Road Solar 1, LLCGardner, MA8 GWhNov 2020Dec 2023 Solar
Woodland Avenue Solar 1Woodland Avenue Solar 1, LLCSeekonk, MA8 GWhJul 2020Dec 2024 Solar
Wilmarth SolarWilmarth Lane Solar 1, LLCPlainville, MA8 GWhJan 2020Dec 2023 Solar
Fairfield PV - BD Solar Fairfield LLCBD Solar Fairfield LLCFairfield, ME8 GWhMay 2021Dec 2024 Solar
RT405 Westerlo Solar 2RT405 Westerlo Solar 2, LLCAlbany, NY8 GWhFeb 2020Dec 2024 Solar
DusenberryAES Distributed EnergyTroy, NY8 GWhNov 2021Dec 2024 Solar
Town HouseNautilus Solar SolutionsChelsea, ME8 GWhNov 2022Dec 2024 Solar
Syncarpha Blandford Hybrid CSGSyncarpha Blandford, LLCBlandford, MA8 GWhNov 2019Dec 2023 Solar
Marshfield 6Green Mountain Power CorpMarshfield, VT8 GWhDec 1926Dec 2024 Water
Main Rd Community SolarAES Distributed EnergyNewstead, NY8 GWhJun 2022Dec 2024 Solar
Fort FairfieldStandard SolarFort Fairfield, ME8 GWhJul 2023Dec 2024 Solar
River RoadNorridgewock River Road Solar, LLCNorridgewock, ME8 GWhFeb 2022Dec 2024 Solar
Route 3 China Solar, LLCREA Investments, LLCChina, ME8 GWhNov 2022Dec 2024 Solar
Vergennes 9Green Mountain Power CorpVergennes, VT8 GWhDec 1911Dec 2024 Water
GSPP 4643 Twelve Corners Road, LLCGreen Street Power PartnersAuburn, NY8 GWhMay 2023Dec 2024 Solar
Elm StreetISM Solar Dighton 3, LLCDighton, MA8 GWhNov 2020Dec 2023 Solar
PittsfordGreen Mountain Power CorpPittsford, VT8 GWhJan 1914Dec 2024 Water
Happy Hollow CSG HybridREA Investments, LLCWinchendon, MA8 GWhSep 2019Dec 2023 Solar
FDX010.0 FedEx Fuel Cell2016 ESA Project Company, LLCMiddletown, CT8 GWhAug 2018Dec 2024 Natural Gas
Randall Solar Project HybridAES Distributed EnergyBerlin, MA8 GWhJun 2021Dec 2024 Solar
28 Livermore Hill Road Solar28 Livermore Hill Road Solar, LLCWestminster, MA8 GWhMay 2020Dec 2024 Solar
Somers Solar Center, LLCOnward EnergySomers, CT8 GWhNov 2013Dec 2023 Solar
Syncarpha Millbury Hybrid (CSG)Syncarpha Millbury, LLCMillbury, MA8 GWhSep 2022Dec 2024 Solar
Bristol Landfill SolarNuGen Capital ManagementBristol, RI8 GWhFeb 2024Dec 2024 Solar
299 Farm to Market Rd Hybrid(CSG)299F2M WHAM8 Solar, LLCWareham, MA8 GWhNov 2021Dec 2023 Solar
Dennis LandfillClean Focus Yield, LLCDennis, MA8 GWhAug 2014Dec 2024 Solar
BWC Lake Lashaway, LLC HybridAES Distributed EnergyNorth Brookfield, MA8 GWhApr 2021Dec 2024 Solar
DartmouthMass Solar, LLCDartmouth, MA8 GWhMar 2014Dec 2024 Solar
Settlers SolarSettlers Solar, LLCLunenberg, MA8 GWhNov 2020Dec 2024 Solar
Lepomis PV Energy LLCCleanCapital HoldingsPlymouth, MA8 GWhMay 2014Dec 2024 Solar
Cobble MountainCity of Holyoke Gas and Electric Dept.Granville, MA8 GWhDec 1929Dec 2024 Water
Golden Hills SolarGolden Hills Solar, LLCRutland, MA8 GWhAug 2017Dec 2024 Solar
French King Solar LLCFrench King Solar LLCErving, MA8 GWhOct 2022Dec 2024 Solar
Pine HillAEP Onsite Partners, LLCJohnston, RI8 GWhJul 2020Dec 2023 Solar
Gorham Solar 1 (CSG)CleanCapital HoldingsGorham, ME8 GWhOct 2023Dec 2024 Solar
Fisher Road SolarFisher Road Solar I, LLCDartmouth, MA8 GWhApr 2015Dec 2024 Solar
Tanglewood Circle Solar 1 LLCTanglewood Circle Solar 1 LLCBecket, MA8 GWhOct 2018Dec 2024 Solar
TunnelFirstLight Power Resources Services LLCPreston, CT8 GWhDec 1918Dec 2024 Water
WED Coventry 6Greenbacker Renewable Energy CorporationCoventry, RI8 GWhJul 2016Apr 2025 Wind
W. Orange Rd Solar LLCAES Distributed EnergyOrange, MA8 GWhAug 2021Dec 2024 Solar
GMP Solar/Storage-Essex HybridGreen Mountain Power CorpEssex, VT8 GWhAug 2019Apr 2025 Solar : 93.2% Electricity used for energy storage : 6.8%
Auburn Solar ProjectAgilitas Energy, Inc.Auburn, MA8 GWhApr 2022Dec 2023 Solar
Saint Albans SolarCypress Creek RenewablesGeorgia, VT8 GWhSep 2018Dec 2024 Solar
Unity SolarMadison Energy Holdings LLCUnity, ME8 GWhNov 2021Dec 2024 Solar
Fox Island Wind LLCFox Island Wind LLCVinalhaven, ME8 GWhOct 2009Dec 2024 Wind
BWC Origination 18BWC Origination 18, LLCMattapoisett, MA8 GWhNov 2018Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator190.4 TWh2,051
#8Tennessee Valley Authority158.5 TWh204
#10Florida Power & Light Co.149.2 TWh187
#12New York Independent System Operator130.9 TWh1,191
#13Duke Energy Carolinas111.9 TWh565
#14ISO New England103.8 TWh1,561
#16Bonneville Power Administration81.2 TWh163
#17Duke Energy Progress East65.1 TWh558
#18Salt River Project Agricultural Improvement and Power District58.9 TWh48
#19PacifiCorp East57.8 TWh215