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 Oct 2026
Annual Generation 112.2 TWh
Power Plants1,667
Utilities846
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% Nuclear | 25.3% Wind | 5.7% Water | 4.6% Other Fuel | 4.5% Solar | 1.6% Coal | 0%

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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 1,001 to 1,100 of 1,387
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Samoset SolarSamoset Solar, LLCRockport, ME4 GWhJun 2023Dec 2025 Solar
BWC Maces Pond LLCNavisun LLCRockport, ME4 GWhNov 2021Dec 2025 Solar
Brassua Hydroelectric ProjectBrassua Hydroelectric LPRockwood, ME13 GWhAug 1989Aug 2025 Water
Town of Rocky Hill PV CSGTesla Inc.Rocky Hill, CT5 GWhFeb 2018Dec 2025 Solar
RollinsfordGreen Mountain Power CorpRollinsford, NH3 GWhSep 1986Dec 2025 Water
700 BinnewaterMadison Energy Investments LLCRosendale, NY2 GWhAug 2022Dec 2025 Solar
ShermanGreat River Hydro, LLCRowe, MA28 GWhNov 1926Dec 2025 Water
Record Hill WindRecord Hill Wind LLCRoxbury, ME110 GWhDec 2011Dec 2025 Wind
RoxWindRoxWind LLCRoxbury, ME44 GWhOct 2021Dec 2025 Wind
Mainely Solar (Wyman Hill Solar LLC)Wyman Hill Solar, LLCRumford, ME6 GWhNov 2022Dec 2025 Solar
Rumford CogenerationND Paper, Inc.Rumford, ME401 GWhDec 1989Jul 2026 Black Liquor : 54.2% Tire-derived Fuels : 20.8% Wood/Wood Waste Solids : 16.7% Bituminous Coal : 6.0% Residual Fuel Oil : 1.1% Natural Gas : 0.6% Sludge Waste : 0.6%
Rumford Power LLCRumford PowerRumford, ME793 GWhJun 2000Dec 2025 Natural Gas
Rumford Falls Hydro FacilityBrookfield Power New EnglandRumford, ME212 GWhDec 1917Dec 2025 Water
Texon Hydroelectric ProjectHitchcock Hydro, LLCRussell, MA4 GWhDec 1981Dec 2025 Water
Holiday Hill Community WindGreenbacker Renewable Energy CorporationRussell, MA12 GWhNov 2019Dec 2025 Wind
Indian River HydroEagle Creek Renewable Energy, LLCRussell, MA2 GWhNov 1909Dec 2025 Water
Russell (MA)Sunrise on Blandford Rd. LLCRussell, MA5 GWhOct 2020Dec 2025 Solar
Wachusett SolarWachusett Solar, LLCRutland, MA3 GWhJul 2019Dec 2025 Solar
Upper Blackstone (MA) Treasure ValleyNexamp Treasure Valley Solar, LLCRutland, MA6 GWhJun 2014Dec 2025 Solar
RGS-Rutland VNM SREC II Project (MA)TerraForm Solar XVII, LLCRutland, MA3 GWhOct 2015Dec 2025 Solar
Pleasantdale Road Community SolarPleasantdale Road Solar, LLCRutland, MA1 GWhAug 2017Dec 2025 Solar
Golden Hills SolarGolden Hills Solar, LLCRutland, MA7 GWhAug 2017Dec 2025 Solar
GlenGreen Mountain Power CorpRutland, VT6 GWhJul 1920Dec 2025 Water
Stafford Hill Solar HybridGreen Mountain Power CorpRutland, VT355 MWhFeb 2015Jun 2026 Solar
Main Street Solar ProjectGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2025 Solar
Gray SolarEcos Energy LLCRutland, VT3 GWhJul 2023Dec 2025 Solar
Park StGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2025 Solar
MacKinnon SolarEcos Energy LLCRutland, VT3 GWhJul 2021Dec 2025 Solar
Sabattus SB01Nautilus Solar SolutionsSabattus, ME8 GWhSep 2023Dec 2025 Solar
Cenergy - PulkBAP Grounded 2 LLCSabattus, ME8 GWhNov 2024Dec 2025 Solar
Cataract HydroBrookfield White Pine Hydro LLCSaco, ME23 GWhDec 1936Dec 2025 Water
Cape Cod Air Force Station - 6 SWSUS Space ForceSagamore, MA6 GWhDec 2013Jul 2026 Wind
Madawaska SolarSoCore Energy LLCSaint David, ME4 GWhNov 2024Dec 2025 Solar
Salem Harbor Power Development LPSalem Harbor Power Development LPSalem, MA1 TWhApr 2018Jul 2026 Natural Gas
True NorthCD US Solar MT1 LLCSalisbury, MA6 GWhJul 2012Dec 2025 Solar
Silver Lake (VT)Green Mountain Power CorpSalisbury, VT5 GWhJan 1917Dec 2025 Water
SalisburyGreen Mountain Power CorpSalisbury, VT2 GWhJan 1917Dec 2025 Water
Renew Canal 1 CSG LLCNRG Renew Canal 1 LLCSandwich, MA2 GWhMay 2017Dec 2025 Solar
CanalCanal Generating LLCSandwich, MA467 GWhMay 1968Jul 2026 Residual Fuel Oil : 59.3% Natural Gas : 28.9% Distillate Fuel Oil : 11.7%
Green MeadowsAltus Power America Management, LLCSandwich, MA5 GWhApr 2014Dec 2025 Solar
SandwichLSE Ophiuchus LLCSandwich, MA4 GWhJun 2023Dec 2025 Solar
ASD Cotuit MA Solar LLCASD Cotuit MA Solar LLCSandwich, MA4 GWhOct 2023Dec 2025 Solar
Sanford SolarSanford Airport Solar, LLCSanford, ME89 GWhOct 2020Jul 2026 Solar
Mousam River SolarWalden Renewables Development LLCSanford, ME7 GWhOct 2025Dec 2025 Solar
Sanford CGANautilus Solar SolutionsSanford, ME8 GWhMay 2022Dec 2025 Solar
Sanford -NYNautilus Solar SolutionsSanford, ME8 GWhJan 2024Dec 2025 Solar
515 Main Saugus515 Main Saugus LLCSaugus, MA2 GWhAug 2017Dec 2025 Solar
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA182 GWhJul 1985Jul 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Savoy Solar PVNSTAR Electric CompanySavoy, MA3 GWhJan 2019Dec 2025 Solar
MEVS WaterhouseMEVS LLCScarborogh, ME3 GWhNov 2024Dec 2025 Solar
BWC Beech Ridge Brook, LLCNavisun LLCScarborough, ME8 GWhApr 2023Dec 2025 Solar
Scituate WindScituate Wind LLCScituate, MA3 GWhFeb 2012Dec 2025 Wind
Scituate PVAES Distributed EnergyScituate, MA3 GWhSep 2013Dec 2025 Solar
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990Jul 2026 Nuclear
Deerfield Wind LLCAvangrid Power LLCSearsburg, VT94 GWhNov 2017Jul 2026 Wind
SearsburgGreat River Hydro, LLCSearsburg, VT16 GWhFeb 1922Dec 2025 Water
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT10 GWhMay 1997Jul 2026 Wind
Georges River EnergyRobbins Lumber IncSearsmont, ME51 GWhNov 2018Dec 2025 Wood/Wood Waste Solids
Caterpillar HillAES Clean EnergySedgwick, ME9 GWhNov 2023Dec 2025 Solar
Woodland Avenue Solar 1Woodland Avenue Solar 1, LLCSeekonk, MA9 GWhJul 2020Dec 2025 Solar
1 CommercialMadison Energy Investments LLCSharon, MA622 MWhAug 2023Oct 2025 Solar
SunGen Sharon 1 LLCSunGen Sharon 1 LLCSharon, VT2 GWhJul 2012Dec 2025 Solar
ShawmutBrookfield White Pine Hydro LLCShawmut, ME23 GWhDec 1912Dec 2025 Water
Berkshire 1PPS Berkshire Solar LLCSheffield, MA2 GWhNov 2011Dec 2025 Solar
Sheffield HewinsNavisun LLCSheffield, MA2 GWhNov 2022Dec 2025 Solar
Seaboard Sheffield, LLCNavisun LLCSheffield, MA2 GWhMar 2021Dec 2025 Solar
Sheffield WindEvergreen Wind, LLCSheffield, VT57 GWhSep 2011Jul 2026 Wind
Limerick Road Solar FarmLimerick Road Solar, LLCShelburne, VT3 GWhNov 2013Dec 2025 Solar
Sheldon SolarExcelsior Energy CapitalSheldon Springs, VT2 GWhAug 2013Dec 2025 Solar
Sheldon Springs HydroelectricCentral Rivers Power US, LLCSheldon Springs, VT52 GWhJun 1988Dec 2025 Water
Derby HydroMcCallum Enterprises I LPShelton, CT23 GWhDec 1988Dec 2025 Water
Emerald Gardens PKI, LLCEmerald Gardens PKI, LLCShelton, CT2 GWhSep 2021Dec 2025 Solar
DevensAltus Power America Management, LLCShirley, MA5 GWhMay 2014Dec 2025 Solar
Shirley LandfillAltus Power America Management, LLCShirley, MA1 GWhApr 2017Dec 2025 Solar
Shirley WaterAltus Power America Management, LLCShirley, MA3 GWhJul 2016Dec 2025 Solar
EBZ SolarCitizens Enterprises CorporationShirley, MA3 GWhDec 2012Dec 2025 Solar
ShrewsburyTown of Shrewsbury - (MA)Shrewsbury, MA2 GWhOct 1969Dec 2025 Distillate Fuel Oil
Shrewsbury SolarRWE Clean EnergyShrewsbury, MA4 GWhSep 2012Dec 2025 Solar
Centech Gas GeneratorTown of Shrewsbury - (MA)Shrewsbury, MA428 MWhMar 2019Dec 2025 Natural Gas
SELCO Community SolarMassachusetts Mun Wholes Electric CoShrewsbury, MA5 GWhMay 2018Dec 2025 Solar
SidneyNautilus Solar SolutionsSidney, ME2 GWhApr 2023Dec 2025 Solar
DWW Solar llDWW Solar ll LLCSimsbury, CT47 GWhNov 2019Jul 2026 Solar
ME Novel Lighthouse - Front St. Solar CSLuminace Sunbeam Development Holdings, LLCSkowhegan, ME5 GWhApr 2023Dec 2025 Solar
Bates College SkowheganWestbound Solar 3, LLCSkowhegan, ME8 GWhAug 2023Dec 2025 Solar
Weston HydroBrookfield White Pine Hydro LLCSkowhegan, ME57 GWhDec 1919Dec 2025 Water
Somerset PlantSappi Fine Paper North America-SomersetSkowhegan, ME565 GWhDec 1975Jul 2026 Black Liquor : 47.1% Wood/Wood Waste Solids : 31.7% Natural Gas : 13.0% Tire-derived Fuels : 4.1% Residual Fuel Oil : 3.4% Sludge Waste : 0.5%
Smithfield Solar Farm, LLCSmithfield Solar FarmSmithfield, RI4 GWhJun 2020Dec 2025 Solar
Elizabeth Mines Solar 1Elizabeth Mines Solar 1, LLCSo. Strafford, VT7 GWhOct 2017Dec 2025 Solar
Williams HydroBrookfield White Pine Hydro LLCSolon, ME64 GWhDec 1938Dec 2025 Water
Somers Solar Center, LLCOnward EnergySomers, CT9 GWhNov 2013Dec 2025 Solar
CTGB OsbornTotalEnergies Renewables USA LLCSomers, CT3 GWhNov 2024Dec 2025 Solar
Blair SolarEcos Energy LLCSomers, CT2 GWhDec 2020Dec 2025 Solar
Madison Solar (CT)Ecos Energy LLCSomers, CT2 GWhDec 2020Dec 2025 Solar
Few SolarEcos Energy LLCSomers, CT2 GWhDec 2020Dec 2025 Solar
Bilton SolarEcos Energy LLCSomers, CT3 GWhAug 2023Dec 2025 Solar
Barrow SolarEcos Energy LLCSomers, CT3 GWhMay 2021Dec 2025 Solar
Somersworth Lower Great DamGreen Mountain Power CorpSomersworth, NH498 MWhJun 1985Dec 2025 Water
CoreSite - SomervilleBloom EnergySomerville, MA28 GWhAug 2020Dec 2025 Natural Gas
Salmon FallsGreen Mountain Power CorpSouth Berwick, ME2 GWhJun 1986Dec 2025 Water
158th Fighter Wing Solar Farm158th Fighter WingSouth Burlington, VT1 GWhAug 2011Dec 2025 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator168.7 TWh2,170
#9Tennessee Valley Authority166.2 TWh209
#10Florida Power & Light Co.153.0 TWh188
#12New York Independent System Operator134.1 TWh1,334
#13Duke Energy Carolinas113.4 TWh578
#15ISO New England112.2 TWh1,667
#16Bonneville Power Administration91.1 TWh170
#17Duke Energy Progress East66.2 TWh574
#18PacifiCorp East61.4 TWh223
#19Salt River Project Agricultural Improvement and Power District60.5 TWh51