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 #11 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%

Map of ISO New England

Register Now for Comprehensive Access

Subscribe now to access all power plant data, utility information, FERC EQR data, and more for ISO New England.

Create Your Account Today

Daily Net Generation for ISO New England for the past 3 Years

List of All ISO New England Power Plants

Displaying Results 1 to 100 of 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Mainely Solar (Wyman Hill Solar LLC)Wyman Hill Solar, LLCRumford, ME5 GWhNov 2022Dec 2024 Solar
Woods Hill SolarWoods Hill Solar, LLCPomfret, CT25 GWhNov 2018Aug 2025 Solar
Woodland Avenue Solar 1Woodland Avenue Solar 1, LLCSeekonk, MA8 GWhJul 2020Dec 2024 Solar
Waste Management Crossroads LFGTEWM Renewable Energy LLCNorridgewock, ME18 GWhFeb 2009Dec 2024 Landfill Gas
New Milford Gas RecoveryWM Renewable Energy LLCNew Milford, CT5 GWhApr 2008Dec 2024 Landfill Gas
Turnkey Landfill Gas RecoveryWM Renewable Energy LLCRochester, NH44 GWhJan 1992Dec 2024 Landfill Gas
Fitchburg Gas RecoveryWM Renewable Energy LLCWestminster, MA32 GWhSep 2007Dec 2024 Landfill Gas
Wind Colebrook SouthWind Colebrook SouthColebrook, CT11 GWhOct 2015Aug 2025 Wind
Wilmarth SolarWilmarth Lane Solar 1, LLCPlainville, MA8 GWhJan 2020Dec 2024 Solar
White Rock Road LLCWhite Rock Road LLCWesterly, RI7 GWhNov 2022Dec 2024 Solar
Wheelabrator Concord FacilityWheelabrator Environmental SystemsConcord, NH94 GWhMar 1989Aug 2025 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator North AndoverWheelabrator Environmental SystemsNorth Andover, MA237 GWhApr 1985Aug 2025 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator Millbury FacilityWheelabrator Environmental SystemsMillbury, MA318 GWhAug 1987Aug 2025 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA235 GWhJul 1985Aug 2025 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator BridgeportWheelabrator Environmental SystemsBridgeport, CT470 GWhJun 1988Aug 2025 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator LisbonWheelabrator Environmental SystemsLisbon, CT101 GWhSep 1995Aug 2025 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Whatley RenewablesWhatley Renewables, LLCWhatley, MA2 GWhSep 2020Dec 2024 Solar
Westminster Renewables, LLC CSGWestminster Renewables, LLCWestminster, MA2 GWhSep 2018Dec 2024 Solar
Indian Orchard PV FacilityWestern Massachusetts Electric CompanySpringfield, MA3 GWhNov 2011Dec 2024 Solar
Silver Lake Solar Photovoltaic FacilityWestern Massachusetts Electric CompanyPittsfield, MA805 MWhNov 2010Dec 2024 Solar
Cottage Street Solar FacilityWestern Massachusetts Electric CompanySpringfield, MA3 GWhApr 2014Aug 2025 Solar
Westbrook Energy Center Power PlantWestbrook Energy CenterWestbrook, ME3 TWhApr 2001Aug 2025 Natural Gas
Niagara Bottling - BloomfieldWestbound Solar 3, LLCBloomfield, CT5 GWhOct 2022Dec 2024 Solar
OverlookWestbound Solar 3, LLCWestminster, MA7 GWhFeb 2023Dec 2024 Solar
Bates College SkowheganWestbound Solar 3, LLCSkowhegan, ME8 GWhAug 2023Dec 2024 Solar
Wesleyan University Cogen 1Wesleyan UniversityMiddletown, CT7 GWhJan 2009Dec 2024 Natural Gas
Wendell MA 1Wendell MA 1 LLCWendell, MA1 GWhNov 2018Dec 2024 Solar
Wellesley College Central Utility PlantWellesley CollegeWellesley, MA889 MWhMay 1985Dec 2024 Natural Gas
WED Shun III, LLCWED Shun III, LLCJohnston, RI7 GWhDec 2018Dec 2024 Wind
WED Shun II, LLCWED Shun II, LLCJohnston, RI6 GWhDec 2018Dec 2024 Wind
WED Shun I, LLCWED Shun I, LLCJohnston, RI7 GWhDec 2018Aug 2025 Wind
WED Plainfield, LLCWED Plainfield, LLCJohnston, RI6 GWhDec 2018Dec 2024 Wind
WED Plainfield III, LLCWED Plainfield III, LLCJohnston, RI6 GWhDec 2018Dec 2024 Wind
WED Plainfield II, LLCWED Plainfield II, LLCJohnston, RI6 GWhDec 2018Dec 2024 Wind
WED NK GreenWED NK Green LLCNorth Kingstown, RI2 GWhFeb 2012Dec 2024 Wind
WED Green Hill, LLCWED Green Hill, LLCJohnston, RI7 GWhDec 2018Aug 2025 Wind
WED Coventry 2WED Coventry Two, LLCCoventry, RI10 GWhJul 2016Aug 2025 Wind
WED Coventry 3WED Coventry Three, LLCCoventry, RI2 GWhJul 2016Dec 2024 Wind
WED Coventry Seven, LLCWED Coventry Seven, LLCCoventry, RI5 GWhNov 2020Dec 2024 Solar
WED Coventry 1WED Coventry One, LLCCoventry, RI2 GWhSep 2016Dec 2024 Wind
WED Coventry 4WED Coventry Four, LLCCoventry, RI2 GWhJul 2016Dec 2024 Wind
Webster SolarWebster Solar, LLCWebster, MA1 GWhNov 2017Dec 2024 Solar
Silver MapleWEB Silver Maple Wind LLCClifton, ME59 GWhSep 2022Dec 2024 Wind
WEB BrookfieldWEB Brookfield Solar LLCBrookfield, MA6 GWhNov 2021Dec 2024 Solar
BrimfieldWEB Brimfield Solar LLCBrimfield, MA3 GWhNov 2021Dec 2024 Solar
Weaver WindWeaver Wind, LLC (Longroad)Township 16, ME226 GWhNov 2020Aug 2025 Wind
Waterside Power, LLCWaterside Power, LLCStamford, CT2 GWhMay 2003Dec 2024 Distillate Fuel Oil
Wrightsville Hydro PlantWashington Electric Coop - (VT)Montpelier, VT2 GWhAug 1985Nov 2024 Water
Coventry Clean Energy CorporationWashington Electric Coop - (VT)Coventry, VT49 GWhJun 2005Dec 2024 Landfill Gas
Ware Palmer Road Solar LLC CSGWare Palmer Road Solar LLCWare, MA5 GWhMay 2021Dec 2024 Solar
Walpole Solar 2Walpole Solar 2, LLCWalpole, MA3 GWhMar 2014Dec 2024 Solar
Wallingford SolarWallingford Renewable Energy, LLCWallingford, CT21 GWhAug 2021Dec 2024 Solar
Wallingford EnergyWallingford Energy LLCWallingford, CT88 GWhJul 2001Dec 2024 Natural Gas
Walden Solar Maine VWalden Solar Maine V LLCLeeds, ME76 MWhNov 2024Dec 2024 Solar
Wachusett SolarWachusett Solar, LLCRutland, MA4 GWhJul 2019Dec 2024 Solar
Hopkinton Phase 2Vista Solar, Inc.Ashaway, RI4 GWhAug 2020Dec 2024 Solar
Oak Bluffs Diesel Generating FacilityVineyard Reliability LLCOak Bluffs, MA2 GWhDec 1968Dec 2024 Distillate Fuel Oil
West Tisbury Generating FacilityVineyard Reliability LLCWest Tisbury, MA3 GWhDec 1974Dec 2024 Distillate Fuel Oil
Highgate FallsVillage of Swanton - (VT)Highgate, VT47 GWhJul 1923Dec 2024 Water
Cadys FallsVillage of Morrisville - (VT)Morrisville, VT139 MWhJul 1914Dec 2024 Water
W K SandersVillage of Morrisville - (VT)Hyde Park, VT548 MWhJun 1983Dec 2024 Water
MorrisvilleVillage of Morrisville - (VT)Morrisville, VT5 GWhJul 1924Dec 2024 Water
VPPSA Project 10Vermont Public Power Supply AuthoritySwanton, VT1 GWhApr 2010Dec 2024 Distillate Fuel Oil
VenturaVentura Drive Dartmouth Solar 1, LLCDartmouth, MA2 GWhMay 2022Oct 2024 Solar
FedEx MiddletownVCP Realty, LLCMiddletown, CT151 MWhOct 2024Dec 2024 Solar
Cape Cod Air Force Station - 6 SWSUS Air ForceSagamore, MA4 GWhDec 2013Aug 2025 Wind
Upton Community SolarUpton Solar, LLCUpton, MA3 GWhAug 2017Dec 2024 Solar
Univ of Massachusetts Medical CenterUniversity of Massachusetts MedicalWorcester, MA69 GWhMar 1974Dec 2024 Natural Gas : 99.2% Distillate Fuel Oil : 0.7%
Central Heating PlantUniversity of Massachusetts AmherstAmherst, MA104 GWhSep 2007Dec 2024 Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
UCONN Cogen FacilityUniversity of ConnecticutStorrs, CT123 GWhFeb 2006Aug 2025 Natural Gas : 98.9% Distillate Fuel Oil : 1.1%
Pratt & WhitneyUnited TechnologiesEast Hartford, CT79 GWhDec 1991Aug 2025 Natural Gas
UI RCP Woodbridge FCUnited Illuminating CoWoodbridge, CT18 GWhNov 2016Dec 2024 Natural Gas
UI RCP New Haven Fuel CellUnited Illuminating CoNew Haven, CT13 GWhJul 2015Aug 2025 Natural Gas
UI RCP Bridgeport SeasideUnited Illuminating CoBridgeport, CT21 GWhOct 2015Aug 2025 Natural Gas : 85.0% Solar : 15.0%
UDR Glastonbury Fuel CellUIL Distributed Resources, LLCGlastonbury, CT18 GWhJan 2016Dec 2024 Natural Gas
UB Fuel CellUB Fuel CellBridgeport, CT10 GWhMar 2015Dec 2023 Natural Gas
TPE RI WA2 SolarTPE RI WA2, LLCWarren, RI4 GWhMay 2024Dec 2024 Solar
TPE RI WA1 SolarTPE RI WA1, LLCWarren, RI4 GWhMay 2024Dec 2024 Solar
West Boylston Community Shared SolarTown of West Boylston - (MA)West Boylston, MA2 GWhNov 2016Dec 2024 Solar
Nebraska Valley Solar FarmTown of Stowe- (VT)Stowe, VT1 GWhJul 2016Dec 2024 Solar
Stafford MS Ground Mount Community SolarTown of Stafford - (CT)Stafford, CT3 GWhJun 2016Dec 2024 Solar
ShrewsburyTown of Shrewsbury - (MA)Shrewsbury, MA34 MWhOct 1969Dec 2024 Distillate Fuel Oil
Centech Gas GeneratorTown of Shrewsbury - (MA)Shrewsbury, MA537 MWhMar 2019Dec 2024 Natural Gas
Princeton Wind FarmTown of Princeton - (MA)Princeton, MA4 GWhDec 2009Dec 2024 Wind
Town of Otis Wind Energy ProjectTown of OtisOtis, MA3 GWhFeb 2018Dec 2023 Wind
Wilkins StationTown of Marblehead - (MA)Marblehead, MA94 MWhOct 1975Dec 2024 Distillate Fuel Oil
Ipswich Wind TurbineTown of Ipswich - (MA)Ipswich, MA2 GWhApr 2011Dec 2024 Wind
High Street StationTown of Ipswich - (MA)Ipswich, MA197 MWhMay 1937Dec 2024 Natural Gas : 91.9% Distillate Fuel Oil : 8.1%
Cherry StreetTown of Hudson - (MA)Hudson, MA199 MWhApr 1951Dec 2024 Natural Gas : 64.2% Distillate Fuel Oil : 35.8%
Town of Foxborough - Landfill (SREC II)Town of Foxborough - Landfill (SREC II)Foxborough, MA2 GWhJul 2017Dec 2024 Solar
Potter Station 2Town of Braintree - (MA)Braintree, MA23 GWhJun 1963Dec 2024 Natural Gas : 93.9% Distillate Fuel Oil : 6.1%
Town of Amherst SolarTown of Amherst Solar, LLCAmherst, MA4 GWhJul 2022Dec 2024 Solar
ME-EDFR-Phase I-EmbdenTower Solar Partners, LLCEmbden, ME8 GWhNov 2023Dec 2024 Solar
Toray Plastic America's CHP PlantToray Plastics AmericaNorth Kingstown, RI147 GWhDec 2002Dec 2024 Natural Gas
Pejepscot Hydroelectric ProjectTopsham Hydro PartnersTopsham, ME49 GWhOct 1987Dec 2024 Water
Tiverton Power PlantTiverton Power LLCTiverton, RI2 TWhFeb 2000Dec 2024 Natural Gas
Three Corners SolarThree Corners Solar, LLCUnity, ME189 GWhJun 2024Aug 2025 Solar
Theodore Drive Community SolarTheodore Drive Solar, LLCWestminster, MA2 GWhFeb 2018Dec 2024 Solar
Smith College Central Heating PlantThe Trustees of Smith CollegeNorthampton, MA14 GWhSep 2008Dec 2024 Natural Gas
Great Falls (VT)The Town of Lyndon Electric DepartmentLyndon, VT3 GWhJul 1915Dec 2024 Water

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.1 TWh2,075
#9Tennessee Valley Authority161.5 TWh204
#10Florida Power & Light Co.148.6 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.7 TWh565
#15ISO New England105.5 TWh1,577
#16Bonneville Power Administration80.5 TWh163
#17Duke Energy Progress East64.2 TWh559
#18PacifiCorp East61.0 TWh216
#19Salt River Project Agricultural Improvement and Power District60.2 TWh48