ISO New England

Balancing Authority Summary Information

ISO New England is ranked #15 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 Nov 2025
Annual Generation 105.5 TWh
Power Plants1,577
Utilities819
Ranked #15 out of 65 in terms of net annual generation
Ranked #12 out of 53 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 55.8% Nuclear | 26% Water | 5% Other Fuel | 4.4% Wind | 4% Solar | 1.5% 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 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Sheldon SolarExcelsior Energy CapitalSheldon Springs, VT3 GWhAug 2013Dec 2024 Solar
Sheldon Springs HydroelectricCentral Rivers Power US, LLCSheldon Springs, VT68 GWhJun 1988Dec 2024 Water
Limerick Road Solar FarmLimerick Road Solar, LLCShelburne, VT3 GWhNov 2013Dec 2024 Solar
Sheffield WindEvergreen Wind, LLCSheffield, VT73 GWhSep 2011Sep 2025 Wind
Berkshire 1PPS Berkshire Solar LLCSheffield, MA2 GWhNov 2011Dec 2024 Solar
Seaboard Sheffield, LLCNavisun LLCSheffield, MA2 GWhMar 2021Dec 2024 Solar
ShawmutBrookfield White Pine Hydro LLCShawmut, ME17 GWhDec 1912Dec 2024 Water
SunGen Sharon 1 LLCSunGen Sharon 1 LLCSharon, VT3 GWhJul 2012Dec 2024 Solar
1 CommercialMadison Energy Investments LLCSharon, MA770 MWhAug 2023Dec 2024 Solar
Woodland Avenue Solar 1Woodland Avenue Solar 1, LLCSeekonk, MA8 GWhJul 2020Dec 2024 Solar
Caterpillar HillAES Clean EnergySedgwick, ME9 GWhNov 2023Dec 2024 Solar
Georges River EnergyRobbins Lumber IncSearsmont, ME52 GWhNov 2018Dec 2024 Wood/Wood Waste Solids
Robbins LumberRobbins Lumber IncSearsmont, ME97 MWhDec 1980Dec 2023 Distillate Fuel Oil
Deerfield Wind LLCAvangrid Power LLCSearsburg, VT95 GWhNov 2017Sep 2025 Wind
SearsburgGreat River Hydro, LLCSearsburg, VT15 GWhFeb 1922Dec 2024 Water
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT12 GWhMay 1997Sep 2025 Wind
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990Sep 2025 Nuclear
Scituate PVAES Distributed EnergyScituate, MA3 GWhSep 2013Dec 2024 Solar
Scituate WindScituate Wind LLCScituate, MA2 GWhFeb 2012Dec 2024 Wind
BWC Beech Ridge Brook, LLCNavisun LLCScarborough, ME8 GWhApr 2023Dec 2024 Solar
Savoy Solar PVNSTAR Electric CompanySavoy, MA3 GWhJan 2019Dec 2024 Solar
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA226 GWhJul 1985Sep 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 -NYNautilus Solar SolutionsSanford, ME7 GWhJan 2024Dec 2024 Solar
Sanford SolarSanford Airport Solar, LLCSanford, ME88 GWhOct 2020Sep 2025 Solar
Sanford CGANautilus Solar SolutionsSanford, ME230 MWhMay 2022Dec 2024 Solar
SandwichLSE Ophiuchus LLCSandwich, MA5 GWhJun 2023Dec 2024 Solar
ASD Cotuit MA Solar LLCASD Cotuit MA Solar LLCSandwich, MA2 GWhOct 2023Dec 2024 Solar
Green MeadowsAltus Power America Management, LLCSandwich, MA5 GWhApr 2014Dec 2024 Solar
CanalCanal Generating LLCSandwich, MA352 GWhMay 1968Sep 2025 Natural Gas : 59.2% Residual Fuel Oil : 37.0% Distillate Fuel Oil : 3.8%
Renew Canal 1 CSG LLCNRG Renew Canal 1 LLCSandwich, MA2 GWhMay 2017Dec 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, MA2 TWhApr 2018Sep 2025 Natural Gas
Cape Cod Air Force Station - 6 SWSUS Air ForceSagamore, MA5 GWhDec 2013Sep 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
Park StGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2024 Solar
Gray SolarEcos Energy LLCRutland, VT3 GWhJul 2023Dec 2024 Solar
Main Street Solar ProjectGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2024 Solar
Stafford Hill Solar HybridGreen Mountain Power CorpRutland, VT675 MWhFeb 2015Sep 2025 Solar
GlenGreen Mountain Power CorpRutland, VT6 GWhJul 1920Dec 2024 Water
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
Golden Hills SolarGolden Hills Solar, LLCRutland, MA8 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, MA4 GWhDec 1981Dec 2024 Water
Russell (MA)Sunrise on Blandford Rd. LLCRussell, MA5 GWhOct 2020Dec 2024 Solar
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 Falls Hydro FacilityBrookfield Power New EnglandRumford, ME261 GWhDec 1917Dec 2024 Water
Rumford CogenerationND Paper, Inc.Rumford, ME429 GWhDec 1989Sep 2025 Black Liquor : 51.5% Tire-derived Fuels : 22.6% Wood/Wood Waste Solids : 14.3% Bituminous Coal : 7.6% Residual Fuel Oil : 3.2% Sludge Waste : 0.9%
Rumford Power LLCRumford PowerRumford, ME638 GWhJun 2000Dec 2024 Natural Gas
Record Hill WindRecord Hill Wind LLCRoxbury, ME115 GWhDec 2011Dec 2024 Wind
RoxWindRoxWind LLCRoxbury, ME36 GWhOct 2021Dec 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
BWC Maces Pond LLCNavisun LLCRockport, ME5 GWhNov 2021Dec 2024 Solar
Samoset SolarSamoset Solar, LLCRockport, ME4 GWhJun 2023Dec 2024 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
Old Middleboro Road SolarAgilitas Energy, Inc.Rochester, MA11 GWhDec 2022Dec 2024 Solar
Rochester MA 2Rochester MA 2 LLCRochester, MA2 GWhNov 2018Dec 2024 Solar
Rounseville SolarRounseville Solar 1, LLCRochester, MA4 GWhJan 2020Dec 2024 Solar
GMP Solar - RichmondGreen Mountain Power CorpRichmond, VT3 GWhSep 2016Sep 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
Rehoboth SolarCitizens Enterprises CorporationRehoboth, MA3 GWhNov 2013Dec 2024 Solar
BWC Swan Pond River CSGBWC Swan Pond River, LLCRehoboth, MA3 GWhNov 2015Dec 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
NBC Field's Point Wind FarmNarragansett Bay CommissionProvidence, RI7 GWhSep 2012Sep 2025 Wind
Little BayAltus Power America Management, LLCProvidence, RI2 GWhFeb 2014Dec 2024 Solar
Rhode Island HospitalRhode Island HospitalProvidence, RI8 GWhSep 1974Sep 2025 Natural Gas : 86.8% Residual Fuel Oil : 13.2%
Thundermist HydroCity of WoonsocketProvidence, RI90 MWhMay 1981Dec 2024 Water
Manchester StreetManchester Street, LLC.Providence, RI2 TWhAug 1995Sep 2025 Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
Green Providence Wind I, LLCGreen Providence Wind I, LLCProvidence, RI2 GWhNov 2021Dec 2024 Wind
Green Providence Wind II, LLCGreen Providence Wind II, LLCProvidence, RI4 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 1991Sep 2025 Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.2% Distillate Fuel Oil : 1.7%
TunnelFirstLight Power Resources Services LLCPreston, CT8 GWhDec 1918Dec 2024 Water
Missile Street (CSG)Nautilus Solar SolutionsPresque Island, ME4 MWhNov 2024Dec 2024 Solar
Mechanic Street (CSG)Nautilus Solar SolutionsPresque Island, ME3 MWhNov 2024Dec 2024 Solar
SVEP Solar Project CompanyCVI CleanCapital Solar 1 LLCPownal, VT2 GWhNov 2012Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.0 TWh2,075
#9Tennessee Valley Authority161.6 TWh204
#10Florida Power & Light Co.148.9 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.5 TWh565
#15ISO New England105.5 TWh1,577
#16Bonneville Power Administration80.5 TWh163
#17Duke Energy Progress East64.3 TWh559
#18PacifiCorp East61.1 TWh216
#19Salt River Project Agricultural Improvement and Power District60.0 TWh48