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 2024
Annual Generation 102.8 TWh
Power Plants1,487
Utilities782
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 | 57.6% Nuclear | 25% Water | 7.7% Other Fuel | 4.6% Wind | 3.3% Solar | 1.2% 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 101 to 200 of 1,204
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Anson Abenaki HydrosEagle Creek Renewable Energy, LLCMadison, ME145 GWhDec 1949Dec 2023 Water
WilderGreat River Hydro, LLCHartford, VT192 GWhOct 1950Dec 2023 Water
WeybridgeGreen Mountain Power CorpWeybridge, VT16 GWhJan 1951Dec 2023 Water
Cherry StreetTown of Hudson - (MA)Hudson, MA417 MWhApr 1951Dec 2023 Distillate Fuel Oil : 73.9% Natural Gas : 26.1%
Oakdale Power StationMassachusetts Water Res AuthWest Boylston, MA12 GWhApr 1951Dec 2023 Water
Hadley FallsCity of Holyoke Gas and Electric Dept.Holyoke, MA218 GWhDec 1951Dec 2023 Water
SchillerGranite Shore PowerPortsmouth, NH776 MWhSep 1952Aug 2024 Jet Fuel
Waterbury 22Green Mountain Power CorpWaterbury, VT16 GWhMay 1953Dec 2023 Water
Montville StationNRG Montville Operations IncUncasville, CT36 GWhDec 1953Dec 2023 Residual Fuel Oil : 65.3% Natural Gas : 33.4% Distillate Fuel Oil : 1.3%
Harris HydroBrookfield White Pine Hydro LLCWest Forks, ME278 GWhDec 1953Dec 2023 Water
ShepaugFirstLight Power Resources Services LLCSouthbury, CT163 GWhDec 1954Dec 2023 Water
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME26 GWhDec 1956Aug 2024 Residual Fuel Oil : 98.9% Distillate Fuel Oil : 1.1%
S C MooreGreat River Hydro, LLCLittleton, NH328 GWhDec 1956Dec 2023 Water
Central Power PlantState of Rhode IslandCranston, RI19 GWhJul 1958Aug 2024 Natural Gas
MiddletownMiddletown Power LLCMiddletown, CT170 GWhSep 1958Dec 2023 Natural Gas : 79.3% Residual Fuel Oil : 20.7%
MerrimackGranite Shore PowerBow, NH151 GWhNov 1960Aug 2024 Bituminous Coal : 98.9% Jet Fuel : 0.9%
Bridgeport StationGeneration Bridge II Connecticut, LLCBridgeport, CT3 TWhJul 1961Aug 2024 Natural Gas
AscutneyGreen Mountain Power CorpWeatherfield, VT239 MWhJul 1961Aug 2024 Distillate Fuel Oil
RutlandGreen Mountain Power CorpRutland City, VT84 MWhNov 1962Mar 2024 Distillate Fuel Oil
Potter Station 2Town of Braintree - (MA)Braintree, MA32 GWhJun 1963Dec 2023 Natural Gas : 88.2% Distillate Fuel Oil : 11.8%
Androscoggin MillPixelle Androscoggin LLCJay, ME69 GWhDec 1963Mar 2023 Natural Gas : 51.1% Black Liquor : 37.4% Wood/Wood Waste Solids : 11.6%
Red Shield Envir Old Town FacilityND Paper, Inc.Old Town, ME66 GWhJun 1965Apr 2023 Wood/Wood Waste Solids : 63.4% Black Liquor : 22.1% Natural Gas : 11.8% Residual Fuel Oil : 2.7%
Bucksport Generation LLCBucksport Generation LLCBucksport, ME21 GWhJun 1965Aug 2024 Natural Gas : 98.9% Distillate Fuel Oil : 1.1%
Colchester 16Green Mountain Power CorpColchester, VT4 MWhSep 1965Dec 2023 Distillate Fuel Oil
Cleary Flood HybridCity of TauntonTaunton, MA50 GWhMay 1966Dec 2023 Natural Gas : 95.5% Distillate Fuel Oil : 4.5%
Tenth StreetCity of Norwich - (CT)Norwich, CT4 GWhApr 1967Dec 2023 Water
BranfordConnecticut Jet Power LLCBranford, CT68 MWhOct 1967Dec 2023 Kerosene
Torrington TerminalConnecticut Jet Power LLCTorrington, CT67 MWhOct 1967Dec 2023 Kerosene
CanalCanal Generating LLCSandwich, MA202 GWhMay 1968Aug 2024 Natural Gas : 77.7% Residual Fuel Oil : 21.1% Distillate Fuel Oil : 1.2%
White LakeGranite Shore PowerTamworth, NH552 MWhJun 1968Dec 2023 Jet Fuel
Franklin DriveConnecticut Jet Power LLCTorrington, CT100 MWhOct 1968Dec 2023 Kerosene
Oak Bluffs Diesel Generating FacilityVineyard Reliability LLCOak Bluffs, MA1 GWhDec 1968Dec 2023 Distillate Fuel Oil
Cosgrove Intake and Power StationMassachusetts Water Res AuthClinton, MA5 GWhDec 1968Dec 2023 Water
Mystic Generating StationConstellation Mystic Power LLCCharlestown, MA2 TWhMay 1969Mar 2024 Natural Gas
Cos CobConnecticut Jet Power LLCGreenwich, CT1 GWhAug 1969Dec 2023 Kerosene
Exelon Framingham LLCConstellation Power, IncFramingham, MA792 MWhAug 1969Dec 2023 Distillate Fuel Oil
Lost NationGranite Shore PowerGroveton, NH428 MWhAug 1969Dec 2023 Distillate Fuel Oil
Cape Gas TurbineFPL Energy Cape LLCPortland, ME532 MWhDec 1969Dec 2023 Distillate Fuel Oil
Dartmouth College Heating PlantDartmouth CollegeHanover, NH10 GWhDec 1969Aug 2024 Residual Fuel Oil
Exelon Medway LLCConstellation Power, IncMedway, MA4 GWhJun 1970Dec 2023 Distillate Fuel Oil
South MeadowNAES CorpHartford, CT1 GWhJul 1970Dec 2022 Kerosene
Gillette SBMCThe Gillette CompanyBoston, MA61 GWhJan 1971Aug 2024 Natural Gas : 99.9%
Burlington GTCity of Burlington Electric - (VT)Burlington, VT472 MWhAug 1971Dec 2023 Distillate Fuel Oil
Waters RiverCity of Peabody - (MA)Peabody, MA4 GWhNov 1971Dec 2023 Natural Gas : 76.6% Distillate Fuel Oil : 23.4%
UMass BostonUMass BostonDorchester, MA659 MWhDec 1971Dec 2023 Solar : 91.2% Distillate Fuel Oil : 8.8%
Berlin 5Green Mountain Power CorpBerlin, VT1 GWhMay 1972Aug 2024 Kerosene
North Main StreetCity of Norwich - (CT)Norwich, CT138 MWhJul 1972May 2023 Distillate Fuel Oil
Univ of Massachusetts Medical CenterUniversity of Massachusetts MedicalWorcester, MA68 GWhMar 1974Dec 2023 Natural Gas : 97.4% Residual Fuel Oil : 2.4%
Framingham State University PlantFramingham State UniversityFramingham, MA72 MWhMay 1974Aug 2024 Solar : 81.9% Distillate Fuel Oil : 18.1%
NewingtonGranite Shore PowerNewington, NH53 GWhMay 1974Aug 2024 Natural Gas : 91.5% Residual Fuel Oil : 8.3%
Deerfield 5Great River Hydro, LLCFlorida, MA63 GWhSep 1974Dec 2023 Water
Fife BrookBear Swamp Power Company LLCFlorida, MA33 GWhSep 1974Dec 2023 Water
Rhode Island HospitalRhode Island HospitalProvidence, RI9 GWhSep 1974Aug 2024 Natural Gas : 89.3% Residual Fuel Oil : 10.7%
West Tisbury Generating FacilityVineyard Reliability LLCWest Tisbury, MA2 GWhDec 1974Dec 2023 Distillate Fuel Oil
New Haven HarborGeneration Bridge II Connecticut, LLCNew Haven, CT30 GWhJun 1975Aug 2024 Natural Gas : 83.2% Kerosene : 16.8%
Wilkins StationTown of Marblehead - (MA)Marblehead, MA78 MWhOct 1975Dec 2023 Distillate Fuel Oil
MillstoneDominion Energy Nuclear Conn IncWaterford, CT16 TWhNov 1975Aug 2024 Nuclear
Somerset PlantSappi Fine Paper North America-SomersetSkowhegan, ME485 GWhDec 1975Aug 2024 Black Liquor : 46.4% Wood/Wood Waste Solids : 37.3% Tire-derived Fuels : 6.7% Natural Gas : 6.2% Residual Fuel Oil : 2.3% Sludge Waste : 1.0%
Front StreetCity of Chicopee - (MA)Chicopee, MA476 MWhDec 1977Dec 2023 Distillate Fuel Oil
Hampton FacilityFoss Manufacturing Company LLCHampton, NH26 GWhSep 1978Aug 2024 Natural Gas
M Street JetMassachusetts Bay Trans AuthBoston, MA275 MWhApr 1979Dec 2023 Kerosene
Middlebury CollegeMiddlebury College BiomassMiddlebury, VT2 GWhDec 1979Aug 2024 Wood/Wood Waste Solids : 77.1% Natural Gas : 22.9%
Medical Area Total Energy PlantMATEP LLCBoston, MA339 GWhDec 1979Dec 2023 Natural Gas : 99.7%
Blackstone/TupperwareBlackstone Hydro Inc.North Smithfield, RI4 GWhDec 1980Aug 2024 Water
Robbins LumberRobbins Lumber IncSearsmont, ME97 MWhDec 1980Dec 2023 Distillate Fuel Oil
Thundermist HydroCity of WoonsocketProvidence, RI5 GWhMay 1981Sep 2023 Water
Lawrence Hydroelectric AssociatesCentral Rivers Power US, LLCLawrence, MA94 GWhJun 1981Dec 2023 Water
China Mill HydroNew Hampshire Hydro AssociatesAllenstown, NH4 GWhJun 1981Dec 2023 Water
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA26 GWhOct 1981Aug 2024 Distillate Fuel Oil : 98.4% Natural Gas : 1.6%
International Paper Riley HydroEagle Creek Renewable Energy, LLCJay, ME6 GWhNov 1981Dec 2023 Water
Texon Hydroelectric ProjectHitchcock Hydro, LLCRussell, MA6 GWhDec 1981Dec 2023 Water
Brunswick HydroBrookfield White Pine Hydro LLCBrunswick, ME123 GWhFeb 1982Dec 2023 Water
Stevens Mills DamEagle Creek Renewable Energy, LLCFranklin, NH10 GWhMay 1982Dec 2023 Water
Smith (VT)Green Mountain Power CorpBradford, VT4 GWhNov 1982Dec 2023 Water
Ottauquechee HydroGreen Mountain Power CorpN. Hartland, VT4 GWhMar 1983Dec 2023 Water
W K SandersVillage of Morrisville - (VT)Hyde Park, VT915 MWhJun 1983Dec 2023 Water
Penacook Lower FallsBriar-Hydro AssociatesBoscawen, NH23 GWhJul 1983Dec 2023 Water
Newfound HydroelectricEagle Creek Renewable Energy, LLCBristol, NH8 GWhNov 1983Dec 2023 Water
Stamford HealthStamford Health Systems, Inc.Stamford, CT84 MWhDec 1983Dec 2022 Distillate Fuel Oil
J C McNeilCity of Burlington Electric - (VT)Burlington, VT155 GWhMay 1984Aug 2024 Wood/Wood Waste Solids : 99.6%
Boltonville Hydro AssociatesBoltonville Hydro AssociatesBoltonville, VT3 GWhJun 1984Dec 2023 Water
East BarnetGreen Mountain Power CorpBarnet, VT6 GWhAug 1984Dec 2023 Water
Clement Dam Hydro LLCEagle Creek Renewable Energy, LLCTilton, NH12 GWhNov 1984Dec 2023 Water
Lochmere Hydroelectric PlantEagle Creek Renewable Energy, LLCTilton, NH4 GWhNov 1984Dec 2023 Water
Devon StationDevon Power LLCMilford, CT123 MWhDec 1984Dec 2023 Kerosene : 89.2% Natural Gas : 10.8%
Otis HydroEagle Creek Renewable Energy, LLCLivermore Falls, ME31 GWhDec 1984Aug 2024 Water
Collins FacilityElevate Power Management LLCWilbraham, MA7 GWhFeb 1985Dec 2023 Water
Wheelabrator North AndoverWheelabrator Environmental SystemsNorth Andover, MA241 GWhApr 1985Aug 2024 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wellesley College Central Utility PlantWellesley CollegeWellesley, MA480 MWhMay 1985Dec 2023 Natural Gas
EHC West HopkintonGreen Mountain Power CorpWest Hopkinton, NH4 GWhJun 1985Dec 2023 Water
Somersworth Lower Great DamGreen Mountain Power CorpSomersworth, NH5 GWhJun 1985Dec 2023 Water
GardinerKEI (Maine) Power Management (III) LLCGardiner, ME7 GWhJun 1985Dec 2023 Water
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA225 GWhJul 1985Aug 2024 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wrightsville Hydro PlantWashington Electric Coop - (VT)Montpelier, VT2 GWhAug 1985Dec 2023 Water
Lockwood Hydroelectric FacilityMerimil Ltd PartnershipWaterville, ME24 GWhSep 1985Dec 2023 Water
Boott HydropowerBoott Hydro, LLC - HybridLowell, MA56 GWhSep 1985Dec 2022 Water
Mine Falls Generating StationCity of Nashua, NHNashua, NH20 GWhNov 1985Dec 2023 Water
Gregg FallsEagle Creek Renewable Energy, LLCGoffstown, NH14 GWhNov 1985Dec 2023 Water
Pembroke HydroEagle Creek Renewable Energy, LLCSuncook, NH15 GWhNov 1985Dec 2023 Water
Goodwin HydroelectricMetropolitan Dist of HartfordW. Hartland, CT13 GWhMar 1986Dec 2023 Water

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator191.5 TWh1,943
#9Tennessee Valley Authority157.5 TWh170
#10Florida Power & Light Co.147.7 TWh159
#12New York Independent System Operator130.0 TWh1,100
#13Duke Energy Carolinas110.9 TWh556
#15ISO New England102.8 TWh1,487
#16Bonneville Power Administration80.0 TWh158
#17Duke Energy Progress East63.3 TWh554
#18Salt River Project Agricultural Improvement and Power District59.0 TWh45
#19PacifiCorp East52.6 TWh204