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 | 57.3% Nuclear | 24.5% Water | 6% Other Fuel | 4.5% Wind | 3.7% Solar | 1.4% 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 301 to 400 of 1,270
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Georges River EnergyRobbins Lumber IncSearsmont, ME40 GWhNov 2018Dec 2023 Wood/Wood Waste Solids
Robbins LumberRobbins Lumber IncSearsmont, ME97 MWhDec 1980Dec 2023 Distillate Fuel Oil
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT11 GWhMay 1997Apr 2025 Wind
Deerfield Wind LLCAvangrid Power LLCSearsburg, VT93 GWhNov 2017Apr 2025 Wind
SearsburgGreat River Hydro, LLCSearsburg, VT15 GWhFeb 1922Dec 2024 Water
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990Apr 2025 Nuclear
Scituate WindScituate Wind LLCScituate, MA2 GWhFeb 2012Dec 2024 Wind
Scituate PVAES Distributed EnergyScituate, MA3 GWhSep 2013Dec 2024 Solar
BWC Beech Ridge Brook, LLCNavisun LLCScarborough, ME5 GWhApr 2023Dec 2023 Solar
Savoy Solar PVNSTAR Electric CompanySavoy, MA3 GWhJan 2019Dec 2024 Solar
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA229 GWhJul 1985Apr 2025 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
515 Main Saugus515 Main Saugus LLCSaugus, MA2 GWhAug 2017Dec 2024 Solar
Sanford CGANautilus Solar SolutionsSanford, ME230 MWhMay 2022Dec 2024 Solar
Sanford -NYNautilus Solar SolutionsSanford, ME7 GWhJan 2024Dec 2024 Solar
Sanford SolarSanford Airport Solar, LLCSanford, ME85 GWhOct 2020Apr 2025 Solar
Renew Canal 1 CSG LLCNRG Renew Canal 1 LLCSandwich, MA2 GWhMay 2017Dec 2024 Solar
Green MeadowsAltus Power America Management, LLCSandwich, MA5 GWhApr 2014Dec 2024 Solar
CanalCanal Generating LLCSandwich, MA304 GWhMay 1968Apr 2025 Natural Gas : 72.9% Residual Fuel Oil : 24.6% Distillate Fuel Oil : 2.5%
ASD Cotuit MA Solar LLCASD Cotuit MA Solar LLCSandwich, MA2 GWhOct 2023Dec 2024 Solar
SalisburyGreen Mountain Power CorpSalisbury, VT2 GWhJan 1917Dec 2024 Water
Silver Lake (VT)Green Mountain Power CorpSalisbury, VT5 GWhJan 1917Dec 2024 Water
True NorthCD US Solar MT1 LLCSalisbury, MA6 GWhJul 2012Dec 2024 Solar
Salem Harbor Power Development LPSalem Harbor Power Development LPSalem, MA1 TWhApr 2018Apr 2025 Natural Gas
Cape Cod Air Force Station - 6 SWSUS Air ForceSagamore, MA4 GWhDec 2013Apr 2025 Wind
Cataract HydroBrookfield White Pine Hydro LLCSaco, ME28 GWhDec 1936Dec 2024 Water
Sabattus SB01Nautilus Solar SolutionsSabattus, ME8 GWhSep 2023Dec 2024 Solar
MacKinnon SolarEcos Energy LLCRutland, VT3 GWhJul 2021Dec 2024 Solar
Gray SolarEcos Energy LLCRutland, VT3 GWhJul 2023Dec 2024 Solar
Park StGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2024 Solar
Main Street Solar ProjectGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2024 Solar
GlenGreen Mountain Power CorpRutland, VT6 GWhJul 1920Dec 2024 Water
Stafford Hill Solar HybridGreen Mountain Power CorpRutland, VT923 MWhFeb 2015Apr 2025 Solar
Golden Hills SolarGolden Hills Solar, LLCRutland, MA8 GWhAug 2017Dec 2024 Solar
RGS-Rutland VNM SREC II Project (MA)TerraForm Solar XVII, LLCRutland, MA2 GWhOct 2015Dec 2024 Solar
Upper Blackstone (MA) Treasure ValleyNexamp Treasure Valley Solar, LLCRutland, MA7 GWhJun 2014Dec 2024 Solar
Pleasantdale Road Community SolarPleasantdale Road Solar, LLCRutland, MA1 GWhAug 2017Dec 2024 Solar
Wachusett SolarWachusett Solar, LLCRutland, MA4 GWhJul 2019Dec 2024 Solar
RutlandGreen Mountain Power CorpRutland City, VT84 MWhNov 1962Mar 2024 Distillate Fuel Oil
Texon Hydroelectric ProjectHitchcock Hydro, LLCRussell, MA6 GWhDec 1981Dec 2023 Water
Holiday Hill Community WindGreenbacker Renewable Energy CorporationRussell, MA10 GWhNov 2019Dec 2024 Wind
Indian River HydroEagle Creek Renewable Energy, LLCRussell, MA1 GWhNov 1909Dec 2024 Water
Mainely Solar (Wyman Hill Solar LLC)Wyman Hill Solar, LLCRumford, ME5 GWhNov 2022Dec 2024 Solar
Rumford CogenerationND Paper, Inc.Rumford, ME437 GWhDec 1989Apr 2025 Black Liquor : 53.6% Tire-derived Fuels : 22.6% Wood/Wood Waste Solids : 12.3% Bituminous Coal : 7.3% Residual Fuel Oil : 3.1% Sludge Waste : 1.0%
Rumford Power LLCRumford PowerRumford, ME638 GWhJun 2000Dec 2024 Natural Gas
Rumford Falls Hydro FacilityBrookfield Power New EnglandRumford, ME261 GWhDec 1917Dec 2024 Water
RoxWindRoxWind LLCRoxbury, ME36 GWhOct 2021Dec 2024 Wind
Record Hill WindRecord Hill Wind LLCRoxbury, ME115 GWhDec 2011Dec 2024 Wind
ShermanGreat River Hydro, LLCRowe, MA27 GWhNov 1926Dec 2024 Water
700 BinnewaterMadison Energy Investments LLCRosendale, NY2 GWhAug 2022Dec 2024 Solar
RollinsfordGreen Mountain Power CorpRollinsford, NH2 GWhSep 1986Dec 2024 Water
Town of Rocky Hill PV CSGTesla Inc.Rocky Hill, CT5 GWhFeb 2018Dec 2024 Solar
Brassua Hydroelectric ProjectBrassua Hydroelectric LPRockwood, ME10 GWhAug 1989Dec 2024 Water
Samoset SolarSamoset Solar, LLCRockport, ME4 GWhJun 2023Dec 2024 Solar
BWC Maces Pond LLCNavisun LLCRockport, ME4 GWhNov 2021Dec 2023 Solar
Rockland Solar CSGMN8 Energy LLCRockland, MA2 GWhNov 2013Dec 2024 Solar
Saratoga Solar IV, LLCGreen Street Power PartnersRock City Falls, NY4 GWhSep 2023Dec 2024 Solar
Turnkey Landfill Gas RecoveryWM Renewable Energy LLCRochester, NH44 GWhJan 1992Dec 2024 Landfill Gas
Quittacas Pond SolarConsolidated Edison Solutions Inc.Rochester, MA5 GWhNov 2013Dec 2024 Solar
Rochester MA 2Rochester MA 2 LLCRochester, MA2 GWhNov 2018Dec 2024 Solar
Old Middleboro Road SolarAgilitas Energy, Inc.Rochester, MA11 GWhDec 2022Dec 2024 Solar
Rounseville SolarRounseville Solar 1, LLCRochester, MA4 GWhJan 2020Dec 2024 Solar
GMP Solar - RichmondGreen Mountain Power CorpRichmond, VT3 GWhSep 2016Apr 2025 Solar
GD Richmond Buttonwoods I, LLCGD Richmond Buttonwoods I, LLCRichmond, RI2 GWhNov 2019Dec 2024 Solar
WED Kingstown Solar I, LLC - WestCleanCapital HoldingsRichmond, RI2 GWhNov 2017Dec 2024 Solar
WED Stilson SolarCleanCapital HoldingsRichmond, RI3 GWhNov 2017Dec 2024 Solar
Richmond HillGreenbacker Renewable Energy CorporationRichmond, ME3 GWhNov 2023Dec 2024 Solar
BWC Swan Pond River CSGBWC Swan Pond River, LLCRehoboth, MA2 GWhNov 2015Dec 2023 Solar
Rehoboth SolarCitizens Enterprises CorporationRehoboth, MA3 GWhNov 2013Dec 2024 Solar
GSPP Raynham TMLP, LLC CSGGreen Street Power PartnersRaynham, MA4 GWhJan 2019Dec 2024 Solar
Williams RdAES Distributed EnergyRansomville, NY6 GWhAug 2021Dec 2024 Solar
RandolphAltus Power America Management, LLCRandolph, MA6 GWhOct 2017Dec 2024 Solar
Water Street SolarAES Distributed EnergyRandolph, ME7 GWhNov 2022Dec 2024 Solar
Boston Scientific SolarConsolidated Edison Solutions Inc.Quincy, MA2 GWhNov 2012Dec 2024 Solar
Outer Cape Community BatteryEversourceProvincetown, MA42 MWhNov 2022Apr 2025 Electricity used for energy storage
Manchester StreetManchester Street, LLC.Providence, RI2 TWhAug 1995Apr 2025 Natural Gas : 98.3% Distillate Fuel Oil : 1.7%
Rhode Island HospitalRhode Island HospitalProvidence, RI9 GWhSep 1974Apr 2025 Natural Gas : 89.3% Residual Fuel Oil : 10.7%
Little BayAltus Power America Management, LLCProvidence, RI2 GWhFeb 2014Dec 2024 Solar
NBC Field's Point Wind FarmNarragansett Bay CommissionProvidence, RI7 GWhSep 2012Apr 2025 Wind
Thundermist HydroCity of WoonsocketProvidence, RI90 MWhMay 1981Dec 2024 Water
Green Providence Wind II, LLCGreen Providence Wind II, LLCProvidence, RI4 GWhNov 2021Dec 2024 Wind
Green Providence Wind I, LLCGreen Providence Wind I, LLCProvidence, RI2 GWhNov 2021Dec 2024 Wind
ProctorGreen Mountain Power CorpProctor, VT31 GWhJul 1905Dec 2024 Water
Princeton Wind FarmTown of Princeton - (MA)Princeton, MA4 GWhDec 2009Dec 2024 Wind
Covanta Southeastern Connecticut CompanyCovanta Southeastern Connecticut CompanyPreston, CT113 GWhNov 1991Apr 2025 Non-biogenic Municipal Solid Waste : 54.2% Biogenic Municipal Solid Waste : 44.4% Distillate Fuel Oil : 1.4%
TunnelFirstLight Power Resources Services LLCPreston, CT8 GWhDec 1918Dec 2024 Water
Mechanic Street (CSG)Nautilus Solar SolutionsPresque Island, ME3 MWhNov 2024Dec 2024 Solar
Missile Street (CSG)Nautilus Solar SolutionsPresque Island, ME4 MWhNov 2024Dec 2024 Solar
SVEP Solar Project CompanyCVI CleanCapital Solar 1 LLCPownal, VT2 GWhNov 2012Dec 2023 Solar
WED Portsmouth One, LLCGreenbacker Renewable Energy CorporationPortsmouth, RI4 GWhJul 2016Dec 2024 Wind
Founders Homestead Farms SolarAES Distributed EnergyPortsmouth, RI6 GWhNov 2019Apr 2025 Solar
Kearsarge West Shore Solar LLCKearsarge West Shore Solar LLCPortsmouth, RI9 GWhNov 2022Dec 2024 Solar
Tank Farm 4Solar Breakers LLCPortsmouth, RI10 GWhSep 2022Dec 2024 Solar
McAllister LandfillSolar Breakers LLCPortsmouth, RI1 GWhSep 2022Dec 2024 Solar
Roger Williams - Melville at PortsmouthLuminace Solar Rhode Island, LLCPortsmouth, RI5 GWhFeb 2021Dec 2024 Solar
SchillerGranite Shore PowerPortsmouth, NH598 MWhSep 1952Apr 2025 Jet Fuel
Regional Waste SystemsEcomainePortland, ME82 GWhMay 1988Apr 2025 Non-biogenic Municipal Solid Waste : 54.5% Biogenic Municipal Solid Waste : 44.6% Natural Gas : 0.8%
Cape Gas TurbineFPL Energy Cape LLCPortland, ME111 MWhDec 1969Dec 2024 Distillate Fuel Oil
Woods Hill SolarWoods Hill Solar, LLCPomfret, CT25 GWhNov 2018Apr 2025 Solar
Lewiston Junction Road SolarNextGrid Peppertree, LLCPoland, ME7 GWhDec 2021Dec 2024 Solar
Plympton Main Street Solar, LLCREA Investments, LLCPlympton, MA8 GWhNov 2023Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator189.7 TWh2,051
#8Tennessee Valley Authority158.8 TWh204
#10Florida Power & Light Co.149.0 TWh187
#12New York Independent System Operator130.8 TWh1,191
#13Duke Energy Carolinas111.8 TWh565
#14ISO New England103.8 TWh1,561
#16Bonneville Power Administration80.6 TWh163
#17Duke Energy Progress East64.9 TWh558
#18Salt River Project Agricultural Improvement and Power District59.0 TWh48
#19PacifiCorp East58.1 TWh215