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 301 to 400 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Somerset PlantSappi Fine Paper North America-SomersetSkowhegan, ME568 GWhDec 1975May 2026 Black Liquor : 45.9% Wood/Wood Waste Solids : 32.4% Natural Gas : 13.1% Tire-derived Fuels : 4.1% Residual Fuel Oil : 3.7% Sludge Waste : 0.5%
Weston HydroBrookfield White Pine Hydro LLCSkowhegan, ME57 GWhDec 1919Dec 2025 Water
DWW Solar llDWW Solar ll LLCSimsbury, CT46 GWhNov 2019May 2026 Solar
SidneyNautilus Solar SolutionsSidney, ME2 GWhApr 2023Dec 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
ShrewsburyTown of Shrewsbury - (MA)Shrewsbury, MA2 GWhOct 1969Dec 2025 Distillate Fuel Oil
Shrewsbury SolarRWE Clean EnergyShrewsbury, MA4 GWhSep 2012Dec 2025 Solar
Shirley WaterAltus Power America Management, LLCShirley, MA3 GWhJul 2016Dec 2025 Solar
DevensAltus Power America Management, LLCShirley, MA5 GWhMay 2014Dec 2025 Solar
EBZ SolarCitizens Enterprises CorporationShirley, MA3 GWhDec 2012Dec 2025 Solar
Shirley LandfillAltus Power America Management, LLCShirley, MA1 GWhApr 2017Dec 2025 Solar
Derby HydroMcCallum Enterprises I LPShelton, CT23 GWhDec 1988Dec 2025 Water
Emerald Gardens PKI, LLCEmerald Gardens PKI, LLCShelton, CT2 GWhSep 2021Dec 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
Limerick Road Solar FarmLimerick Road Solar, LLCShelburne, VT3 GWhNov 2013Dec 2025 Solar
Sheffield WindEvergreen Wind, LLCSheffield, VT57 GWhSep 2011May 2026 Wind
Berkshire 1PPS Berkshire Solar LLCSheffield, MA2 GWhNov 2011Dec 2024 Solar
Seaboard Sheffield, LLCNavisun LLCSheffield, MA2 GWhMar 2021Dec 2025 Solar
ShawmutBrookfield White Pine Hydro LLCShawmut, ME23 GWhDec 1912Dec 2025 Water
SunGen Sharon 1 LLCSunGen Sharon 1 LLCSharon, VT2 GWhJul 2012Dec 2025 Solar
1 CommercialMadison Energy Investments LLCSharon, MA622 MWhAug 2023Oct 2025 Solar
Woodland Avenue Solar 1Woodland Avenue Solar 1, LLCSeekonk, MA9 GWhJul 2020Dec 2025 Solar
Caterpillar HillAES Clean EnergySedgwick, ME9 GWhNov 2023Dec 2025 Solar
Georges River EnergyRobbins Lumber IncSearsmont, ME52 GWhNov 2018Dec 2024 Wood/Wood Waste Solids
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT10 GWhMay 1997May 2026 Wind
SearsburgGreat River Hydro, LLCSearsburg, VT16 GWhFeb 1922Dec 2025 Water
Deerfield Wind LLCAvangrid Power LLCSearsburg, VT92 GWhNov 2017May 2026 Wind
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990May 2026 Nuclear
Scituate WindScituate Wind LLCScituate, MA3 GWhFeb 2012Dec 2025 Wind
Scituate PVAES Distributed EnergyScituate, MA3 GWhSep 2013Dec 2025 Solar
BWC Beech Ridge Brook, LLCNavisun LLCScarborough, ME8 GWhApr 2023Dec 2025 Solar
MEVS WaterhouseMEVS LLCScarborogh, ME3 GWhNov 2024Dec 2025 Solar
Savoy Solar PVNSTAR Electric CompanySavoy, MA3 GWhJan 2019Dec 2025 Solar
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA180 GWhJul 1985May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
515 Main Saugus515 Main Saugus LLCSaugus, MA2 GWhAug 2017Dec 2025 Solar
Sanford CGANautilus Solar SolutionsSanford, ME8 GWhMay 2022Dec 2025 Solar
Sanford -NYNautilus Solar SolutionsSanford, ME8 GWhJan 2024Dec 2025 Solar
Sanford SolarSanford Airport Solar, LLCSanford, ME87 GWhOct 2020May 2026 Solar
SandwichLSE Ophiuchus LLCSandwich, MA5 GWhJun 2023Dec 2024 Solar
ASD Cotuit MA Solar LLCASD Cotuit MA Solar LLCSandwich, MA2 GWhOct 2023Dec 2024 Solar
Renew Canal 1 CSG LLCNRG Renew Canal 1 LLCSandwich, MA2 GWhMay 2017Dec 2024 Solar
Green MeadowsAltus Power America Management, LLCSandwich, MA5 GWhApr 2014Dec 2025 Solar
CanalCanal Generating LLCSandwich, MA546 GWhMay 1968May 2026 Residual Fuel Oil : 55.3% Natural Gas : 34.6% Distillate Fuel Oil : 10.1%
SalisburyGreen Mountain Power CorpSalisbury, VT2 GWhJan 1917Dec 2025 Water
Silver Lake (VT)Green Mountain Power CorpSalisbury, VT5 GWhJan 1917Dec 2025 Water
True NorthCD US Solar MT1 LLCSalisbury, MA6 GWhJul 2012Dec 2025 Solar
Salem Harbor Power Development LPSalem Harbor Power Development LPSalem, MA2 TWhApr 2018May 2026 Natural Gas
Madawaska SolarSoCore Energy LLCSaint David, ME4 GWhNov 2024Dec 2025 Solar
Cape Cod Air Force Station - 6 SWSUS Space ForceSagamore, MA6 GWhDec 2013May 2026 Wind
Cataract HydroBrookfield White Pine Hydro LLCSaco, ME23 GWhDec 1936Dec 2025 Water
Sabattus SB01Nautilus Solar SolutionsSabattus, ME8 GWhSep 2023Dec 2025 Solar
Cenergy - PulkBAP Grounded 2 LLCSabattus, ME8 GWhNov 2024Dec 2025 Solar
MacKinnon SolarEcos Energy LLCRutland, VT3 GWhJul 2021Dec 2025 Solar
Park StGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2025 Solar
Gray SolarEcos Energy LLCRutland, VT3 GWhJul 2023Dec 2025 Solar
Stafford Hill Solar HybridGreen Mountain Power CorpRutland, VT390 MWhFeb 2015May 2026 Solar
GlenGreen Mountain Power CorpRutland, VT6 GWhJul 1920Dec 2025 Water
Main Street Solar ProjectGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 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
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
Wachusett SolarWachusett Solar, LLCRutland, MA3 GWhJul 2019Dec 2025 Solar
Indian River HydroEagle Creek Renewable Energy, LLCRussell, MA2 GWhNov 1909Dec 2025 Water
Holiday Hill Community WindGreenbacker Renewable Energy CorporationRussell, MA12 GWhNov 2019Dec 2025 Wind
Russell (MA)Sunrise on Blandford Rd. LLCRussell, MA5 GWhOct 2020Dec 2024 Solar
Texon Hydroelectric ProjectHitchcock Hydro, LLCRussell, MA4 GWhDec 1981Dec 2025 Water
Rumford CogenerationND Paper, Inc.Rumford, ME400 GWhDec 1989May 2026 Black Liquor : 55.5% Tire-derived Fuels : 20.6% Wood/Wood Waste Solids : 16.0% Bituminous Coal : 6.1% Residual Fuel Oil : 1.2% Sludge Waste : 0.7%
Rumford Falls Hydro FacilityBrookfield Power New EnglandRumford, ME212 GWhDec 1917Dec 2025 Water
Rumford Power LLCRumford PowerRumford, ME793 GWhJun 2000Dec 2025 Natural Gas
Mainely Solar (Wyman Hill Solar LLC)Wyman Hill Solar, LLCRumford, ME6 GWhNov 2022Dec 2025 Solar
RoxWindRoxWind LLCRoxbury, ME44 GWhOct 2021Dec 2025 Wind
Record Hill WindRecord Hill Wind LLCRoxbury, ME110 GWhDec 2011Dec 2025 Wind
ShermanGreat River Hydro, LLCRowe, MA28 GWhNov 1926Dec 2025 Water
700 BinnewaterMadison Energy Investments LLCRosendale, NY2 GWhAug 2022Dec 2025 Solar
RollinsfordGreen Mountain Power CorpRollinsford, NH3 GWhSep 1986Dec 2025 Water
Town of Rocky Hill PV CSGTesla Inc.Rocky Hill, CT5 GWhFeb 2018Dec 2025 Solar
Brassua Hydroelectric ProjectBrassua Hydroelectric LPRockwood, ME13 GWhAug 1989Aug 2025 Water
Samoset SolarSamoset Solar, LLCRockport, ME4 GWhJun 2023Dec 2025 Solar
BWC Maces Pond LLCNavisun LLCRockport, ME4 GWhNov 2021Dec 2025 Solar
Rockland Solar CSGMN8 Energy LLCRockland, MA2 GWhNov 2013Dec 2025 Solar
Saratoga Solar IV, LLCGreen Street Power PartnersRock City Falls, NY5 GWhSep 2023Dec 2025 Solar
Turnkey Landfill Gas RecoveryWM Renewable Energy LLCRochester, NH39 GWhJan 1992Dec 2025 Landfill Gas
Quittacas Pond SolarRWE Clean EnergyRochester, MA5 GWhNov 2013Dec 2025 Solar
Rochester MA 2Rochester MA 2 LLCRochester, MA1 GWhNov 2018Dec 2025 Solar
Rounseville SolarRounseville Solar 1, LLCRochester, MA4 GWhJan 2020Dec 2025 Solar
Old Middleboro Road SolarAgilitas Energy, Inc.Rochester, MA8 GWhDec 2022Dec 2025 Solar
GMP Solar - RichmondGreen Mountain Power CorpRichmond, VT3 GWhSep 2016May 2026 Solar
WED Stilson SolarCleanCapital HoldingsRichmond, RI3 GWhNov 2017Dec 2025 Solar
WED Kingstown Solar I, LLC - WestCleanCapital HoldingsRichmond, RI2 GWhNov 2017Dec 2025 Solar
GD Richmond Buttonwoods I, LLCCleanCapital HoldingsRichmond, RI2 GWhNov 2019Dec 2025 Solar
GD Richmond Beaver River I LLCGD Richmond Beaver River I LLCRichmond, RI6 GWhMar 2025Dec 2025 Solar
Richmond HillGreenbacker Renewable Energy CorporationRichmond, ME3 GWhNov 2023Dec 2025 Solar
BWC Swan Pond River CSGBWC Swan Pond River, LLCRehoboth, MA3 GWhNov 2015Dec 2025 Solar
Rehoboth SolarCitizens Enterprises CorporationRehoboth, MA3 GWhNov 2013Dec 2025 Solar
GSPP Raynham TMLP, LLC CSGGreen Street Power PartnersRaynham, MA4 GWhJan 2019Dec 2025 Solar
Williams RdAES Distributed EnergyRansomville, NY6 GWhAug 2021Dec 2025 Solar
RandolphAltus Power America Management, LLCRandolph, MA6 GWhOct 2017Dec 2025 Solar

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