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 1,101 to 1,200 of 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
GSPP 126 Little Bow Rd N, LLCGreen Street Power PartnersGouverneur, NY3 GWhNov 2023Dec 2024 Solar
GSPP 126 Little Bow Rd S, LLCGreen Street Power PartnersGouverneur, NY4 GWhNov 2023Dec 2024 Solar
Saratoga Solar III, LLCGreen Street Power PartnersMiddle Grove, NY6 GWhNov 2023Dec 2024 Solar
Saratoga Solar IV, LLCGreen Street Power PartnersRock City Falls, NY4 GWhSep 2023Dec 2024 Solar
Pulpit HillLSE Fornax LLCAmherst, MA7 GWhJun 2019Dec 2024 Solar
Sand RoadLSE Phoenix LLCNorth Canaan, CT4 GWhOct 2021Dec 2024 Solar
Norfolk Landfill Solar ProjectNJR Clean Energy Ventures CorporationNorfolk, CT494 MWhNov 2024Dec 2024 Solar
Raffia Road Solar ProjectNJR Clean Energy Ventures CorporationEnfield, CT11 MWhNov 2024Dec 2024 Solar
Brewer (CSG)Nautilus Solar SolutionsBrewer, ME2 GWhJul 2024Dec 2024 Solar
Sturbridge BarnLSE Ara LLCCharlton, MA2 GWhMay 2018Dec 2024 Solar
BunceLSE Indus LLCNorth Canaan, CT3 GWhMar 2022Dec 2024 Solar
Monument ValleyLSE Lepus LLCGreat Barrington, MA3 GWhDec 2021Dec 2024 Solar
SandwichLSE Ophiuchus LLCSandwich, MA5 GWhJun 2023Dec 2024 Solar
Dynamic Energy CT STAGMilford Pepes Farm Road Solar LLCMilford, CT2 GWhJul 2023Dec 2024 Solar
Jericho Gravel Solar FarmSoCore Energy LLCJerico, VT2 GWhDec 2020Dec 2024 Solar
Jericho Landfill Solar FarmSoCore Energy LLCJerico, VT2 GWhDec 2020Dec 2024 Solar
Ellington - 277 Sadds MillOnyx Asset Services GroupEllington, CT3 GWhFeb 2024Dec 2024 Solar
ISM Solar Shepherd AcresNavisun LLCSouth Paris, ME65 MWhNov 2024Dec 2024 Solar
Augusta Road Bowdoin Solar, LLCREA Investments, LLCBowdoin, ME5 GWhJan 2022Dec 2024 Solar
Canton GLC Solar, LLCREA Investments, LLCCanton, ME4 GWhMar 2024Dec 2024 Solar
Church Hill Road Augusta Solar, LLCREA Investments, LLCAugusta, ME6 GWhJan 2022Dec 2024 Solar
Plympton Lake Street SolarREA Investments, LLCPlympton, MA2 GWhNov 2022Dec 2024 Solar
Mariaville Road Elsworth Solar, LLCREA Investments, LLCEllsworth, ME3 GWhApr 2022Dec 2024 Solar
Plympton Main Street Solar, LLCREA Investments, LLCPlympton, MA8 GWhNov 2023Dec 2024 Solar
Market Street Gardiner Solar, LLCREA Investments, LLCGardiner, ME6 GWhJun 2022Dec 2024 Solar
North Nobleboro Road, LLCREA Investments, LLCWaldoboro, ME4 GWhMay 2021Dec 2024 Solar
Nutting Ridge Solar, LLCREA Investments, LLCOtisfield, ME6 GWhMay 2023Dec 2024 Solar
Perkins Road Belfast Solar, LLCREA Investments, LLCBelfast, ME9 GWhMay 2021Dec 2024 Solar
Route 3 China Solar, LLCREA Investments, LLCChina, ME8 GWhNov 2022Dec 2024 Solar
Ward Solar 1, LLCREA Investments, LLCCarver, MA3 GWhJan 2019Dec 2024 Solar
Dairy FarmGreenbacker Renewable Energy CorporationAnson, ME542 MWhSep 2024Dec 2024 Solar
Old Frontier Solar IIIOld Frontier Solar III PV, LLCSouth Deerfield, MA4 GWhAug 2022Dec 2024 Solar
CP East Hampton I & II SolarNJR Clean Energy Ventures CorporationEast Hampton, CT3 GWhJan 2021Dec 2024 Solar
118 EchoMadison Energy Investments LLCMashpee, MA4 MWhJun 2023Dec 2024 Solar
WaterboroMadison Energy Investments LLCEast Waterboro, ME3 GWhJun 2023Dec 2024 Solar
Lebanon CSG LLCDimension Energy LLCLebanon, ME64 MWhNov 2024Dec 2024 Solar
515 Main Saugus515 Main Saugus LLCSaugus, MA2 GWhAug 2017Dec 2024 Solar
Aegean Drive SolarAegean Drive Solar LLCMethuen, MA3 GWhAug 2021Dec 2024 Solar
Downing Parkway SolarDowning Parkway Solar LLCPittsfield, MA3 GWhJun 2015Dec 2024 Solar
Millbury MA #1092Millbury MA #1092 LLCMillbury, MA2 GWhMay 2019Dec 2024 Solar
Millis MA 1Millis MA 1 LLCMillis, MA2 GWhOct 2018Dec 2024 Solar
Rochester MA 2Rochester MA 2 LLCRochester, MA2 GWhNov 2018Dec 2024 Solar
Wendell MA 1Wendell MA 1 LLCWendell, MA1 GWhNov 2018Dec 2024 Solar
Walden Solar Maine VWalden Solar Maine V LLCLeeds, ME76 MWhNov 2024Dec 2024 Solar
ME - Novel (Lighthouse Ph I) Mars HillMars Hill Road Solar Farm, LLCWestfield, ME22 MWhJul 2024Dec 2024 Solar
Central Heating PlantUniversity of Massachusetts AmherstAmherst, MA104 GWhSep 2007Dec 2024 Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
Stamford Health Tully Health CenterStamford Health Tully Health CenterStamford, CT5 GWhApr 2002Dec 2024 Natural Gas
OverlookWestbound Solar 3, LLCWestminster, MA7 GWhFeb 2023Dec 2024 Solar
Bates College SkowheganWestbound Solar 3, LLCSkowhegan, ME8 GWhAug 2023Dec 2024 Solar
Randall Road Solar IGreen Street Power PartnersBallston Spa, NY2 GWhJun 2024Dec 2024 Solar
Randall Road Solar IIGreen Street Power PartnersBallston Spa, NY1 GWhJun 2024Dec 2024 Solar
Swaggertown Solar IGreen Street Power PartnersGlenville, NY122 MWhOct 2024Dec 2024 Solar
New MarlboroughSunrise on Knight Rd. LLCNew Marlborough, MA7 GWhMay 2021Dec 2024 Solar
Peru (MA)Sunrise on West Main Rd. LLCPeru, MA5 GWhOct 2020Dec 2024 Solar
Russell (MA)Sunrise on Blandford Rd. LLCRussell, MA5 GWhOct 2020Dec 2024 Solar
TollandSunrise on Clubhouse Rd. LLCTolland, MA8 GWhNov 2020Dec 2024 Solar
WesthamptonSunrise on Montague Rd. LLCWesthampton, MA7 GWhNov 2020Dec 2024 Solar
Westport (MA)Sunrise on Drift Rd. LLCWestport, MA4 GWhSep 2020Dec 2024 Solar
Swaggertown Solar IIGreen Street Power PartnersGlenville, NY1 GWhAug 2024Dec 2024 Solar
Partridge SolarSoCore Energy LLCLanesborough, MA8 GWhAug 2022Dec 2024 Solar
Saddleback SolarSoCore Energy LLCLanesborough, MA4 GWhAug 2022Dec 2024 Solar
Skyline SolarSoCore Energy LLCLanesborough, MA7 GWhAug 2022Dec 2024 Solar
Adams Grove SolarSoCore Energy LLCAdams, MA6 GWhAug 2022Dec 2024 Solar
ApolloSunrise on Wing Ln. LLCAcushnet, MA2 GWhAug 2021Dec 2024 Solar
ME - EDF - Phase II - BelfastShining Solar Partners, LLCBelfast, ME427 MWhAug 2024Dec 2024 Solar
Marston Mills SolarSoCore Energy LLCMarstons Mills, MA6 GWhNov 2021Dec 2024 Solar
Brattleboro (Windham Landfill)Greenbacker Renewable Energy CorporationBrattleboro, VT7 GWhJul 2018Dec 2024 Solar
Indeck Jonesboro Energy CenterStored Solar J&WEJonesboro, ME16 MWhNov 1987Jun 2025 Gaseous Propane : 66.7% Wood/Wood Waste Solids : 33.3%
NewingtonGranite Shore PowerNewington, NH95 GWhMay 1974Aug 2025 Natural Gas : 60.0% Residual Fuel Oil : 39.5% Distillate Fuel Oil : 0.6%
Indian Orchard Plant 1Solutia Inc-IndianSpringfield, MA137 MWhApr 1985Aug 2025 Natural Gas
Bucksport Generation LLCBucksport Generation LLCBucksport, ME10 GWhJun 1965Aug 2025 Natural Gas : 97.3% Distillate Fuel Oil : 2.7%
Rainbow (CT)Farmington River Power CompanyWindsor, CT20 GWhNov 1925Sep 2025 Water
MillstoneDominion Energy Nuclear Conn IncWaterford, CT16 TWhNov 1975Sep 2025 Nuclear
Bridgeport StationGeneration Bridge II Connecticut, LLCBridgeport, CT4 TWhJul 1961Sep 2025 Natural Gas : 98.6% Distillate Fuel Oil : 1.4%
J C McNeilCity of Burlington Electric - (VT)Burlington, VT228 GWhMay 1984Sep 2025 Wood/Wood Waste Solids : 99.9%
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME66 GWhDec 1956Sep 2025 Residual Fuel Oil : 99.2% Distillate Fuel Oil : 0.8%
Kendall Square StationKendall Green Energy, LLCCambridge, MA2 TWhMay 1949Sep 2025 Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
CanalCanal Generating LLCSandwich, MA352 GWhMay 1968Sep 2025 Natural Gas : 59.2% Residual Fuel Oil : 37.0% Distillate Fuel Oil : 3.8%
MerrimackGranite Shore PowerBow, NH364 GWhNov 1960Sep 2025 Bituminous Coal : 99.7%
SchillerGranite Shore PowerPortsmouth, NH590 MWhSep 1952Sep 2025 Jet Fuel
Manchester StreetManchester Street, LLC.Providence, RI2 TWhAug 1995Sep 2025 Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
AscutneyGreen Mountain Power CorpWeatherfield, VT113 MWhJul 1961Sep 2025 Distillate Fuel Oil
Berlin 5Green Mountain Power CorpBerlin, VT1 GWhMay 1972Sep 2025 Kerosene
Essex Junction 19Green Mountain Power CorpEssex Junction, VT32 GWhDec 1916Sep 2025 Water : 99.6%
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA125 GWhOct 1981Sep 2025 Natural Gas : 74.6% Distillate Fuel Oil : 25.4%
SeabrookNextEra Energy Seabrook LLCSeabrook, NH10 TWhJul 1990Sep 2025 Nuclear
New Haven HarborGeneration Bridge II Connecticut, LLCNew Haven, CT93 GWhJun 1975Sep 2025 Natural Gas : 72.8% Residual Fuel Oil : 17.4% Distillate Fuel Oil : 6.4% Kerosene : 3.3%
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT12 GWhMay 1997Sep 2025 Wind
General Electric Aircraft EnginesGeneral Electric Aircraft EnginesLynn, MA2 GWhDec 1947Sep 2025 Solar
Hampton FacilityFoss Manufacturing Company LLCHampton, NH24 GWhSep 1978Sep 2025 Natural Gas
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%
Algonquin Windsor LocksAhlstrom Power Windsor Locks LLCWindsor Locks, CT125 GWhDec 1989Sep 2025 Natural Gas : 99.9%
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%
Pepperell Hydro Power PlantEagle Creek Renewable Energy, LLCPepperell, MA4 GWhDec 1919Sep 2025 Water
Deer Island Treatment PlantMassachusetts Wtr Rauth-Deer IWinthrop, MA33 GWhJul 1995Sep 2025 Other Biomass Gas : 83.9% Distillate Fuel Oil : 10.8% Wind : 2.6% Solar : 1.9% Water : 0.9%
Pittsfield Generating LPPittsfield Generating Company, LPPittsfield, MA123 GWhJun 1990Sep 2025 Natural Gas : 98.6% Distillate Fuel Oil : 1.4%
MMWAC Resource Recovery FacilityMaine Waste to EnergyAuburn, ME10 GWhMay 1992Sep 2025 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 1.9%
Otis HydroEagle Creek Renewable Energy, LLCLivermore Falls, ME28 GWhDec 1984Sep 2025 Water
Blackstone/TupperwareBlackstone Hydro Inc.North Smithfield, RI2 GWhDec 1980Sep 2025 Water
Regional Waste SystemsEcomainePortland, ME90 GWhMay 1988Sep 2025 Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7%

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