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 Apr 2026
Annual Generation 111.1 TWh
Power Plants1,577
Utilities819
Ranked #15 out of 65 in terms of net annual generation
Ranked #11 out of 54 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 55.8% Nuclear | 24.9% Wind | 4.6% Water | 4.5% Other Fuel | 4.4% Solar | 1.5% 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 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%
SchillerGranite Shore PowerPortsmouth, NH1 GWhSep 1952Jan 2026 Jet Fuel
Berlin 5Green Mountain Power CorpBerlin, VT2 GWhMay 1972Jan 2026 Kerosene
New Haven HarborGeneration Bridge II Connecticut, LLCNew Haven, CT167 GWhJun 1975Jan 2026 Residual Fuel Oil : 45.1% Natural Gas : 40.3% Distillate Fuel Oil : 12.2% Kerosene : 2.5%
Bucksport Generation LLCBucksport Generation LLCBucksport, ME23 GWhJun 1965Jan 2026 Distillate Fuel Oil : 52.1% Natural Gas : 47.9%
Dept of Corrections NCCI WindDept of Corrections NCCI WindGardner, MA5 GWhOct 2013Jan 2026 Wind
Framingham State University PlantFramingham State UniversityFramingham, MA29 MWhMay 1974Jan 2026 Solar : 65.5% Distillate Fuel Oil : 34.5%
Spring Hill RoadAES Distributed EnergyBarre, MA705 MWhNov 2015Jan 2026 Solar
Stafford Hill Solar HybridGreen Mountain Power CorpRutland, VT563 MWhFeb 2015Jan 2026 Solar
Rainbow (CT)Farmington River Power CompanyWindsor, CT22 GWhNov 1925Feb 2026 Water
MillstoneDominion Energy Nuclear Conn IncWaterford, CT17 TWhNov 1975Feb 2026 Nuclear
Bridgeport StationGeneration Bridge II Connecticut, LLCBridgeport, CT3 TWhJul 1961Feb 2026 Natural Gas : 85.2% Distillate Fuel Oil : 14.8%
J C McNeilCity of Burlington Electric - (VT)Burlington, VT196 GWhMay 1984Feb 2026 Wood/Wood Waste Solids : 99.8%
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME339 GWhDec 1956Feb 2026 Residual Fuel Oil : 99.6%
Kendall Square StationKendall Green Energy, LLCCambridge, MA2 TWhMay 1949Feb 2026 Natural Gas : 97.5% Distillate Fuel Oil : 2.5%
CanalCanal Generating LLCSandwich, MA537 GWhMay 1968Feb 2026 Residual Fuel Oil : 56.2% Natural Gas : 33.6% Distillate Fuel Oil : 10.3%
MerrimackGranite Shore PowerBow, NH116 GWhNov 1960Feb 2026 Bituminous Coal : 97.5% Jet Fuel : 2.4%
Manchester StreetManchester Street, LLC.Providence, RI2 TWhAug 1995Feb 2026 Natural Gas : 91.8% Distillate Fuel Oil : 8.2%
AscutneyGreen Mountain Power CorpWeatherfield, VT377 MWhJul 1961Feb 2026 Distillate Fuel Oil
Essex Junction 19Green Mountain Power CorpEssex Junction, VT33 GWhDec 1916Feb 2026 Water : 98.9% Distillate Fuel Oil : 1.1%
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA176 GWhOct 1981Feb 2026 Distillate Fuel Oil : 56.2% Natural Gas : 43.8%
SeabrookNextEra Energy Seabrook LLCSeabrook, NH11 TWhJul 1990Feb 2026 Nuclear
Searsburg Wind TurbineGreen Mountain Power CorpSearsburg, VT11 GWhMay 1997Feb 2026 Wind
NewingtonGranite Shore PowerNewington, NH153 GWhMay 1974Feb 2026 Residual Fuel Oil : 65.7% Natural Gas : 32.8% Distillate Fuel Oil : 1.5%
General Electric Aircraft EnginesGeneral Electric Aircraft EnginesLynn, MA2 GWhDec 1947Feb 2026 Solar
Hampton FacilityFoss Manufacturing Company LLCHampton, NH27 GWhSep 1978Feb 2026 Natural Gas
Indian Orchard Plant 1Solutia Inc-IndianSpringfield, MA5 GWhApr 1985Feb 2026 Natural Gas
Rumford CogenerationND Paper, Inc.Rumford, ME405 GWhDec 1989Feb 2026 Black Liquor : 52.7% Tire-derived Fuels : 21.8% Wood/Wood Waste Solids : 16.1% Bituminous Coal : 7.1% Residual Fuel Oil : 1.4% Sludge Waste : 0.8%
Algonquin Windsor LocksAhlstrom Power Windsor Locks LLCWindsor Locks, CT147 GWhDec 1989Feb 2026 Natural Gas : 92.2% Distillate Fuel Oil : 7.8%
Covanta Southeastern Connecticut CompanyCovanta Southeastern Connecticut CompanyPreston, CT113 GWhNov 1991Feb 2026 Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Distillate Fuel Oil : 1.9%
Pepperell Hydro Power PlantEagle Creek Renewable Energy, LLCPepperell, MA4 GWhDec 1919Feb 2026 Water
Deer Island Treatment PlantMassachusetts Wtr Rauth-Deer IWinthrop, MA34 GWhJul 1995Feb 2026 Other Biomass Gas : 82.0% Distillate Fuel Oil : 13.4% Wind : 2.8% Solar : 1.8%
Pittsfield Generating LPPittsfield Generating Company, LPPittsfield, MA136 GWhJun 1990Feb 2026 Natural Gas : 96.9% Distillate Fuel Oil : 3.1%

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator176.8 TWh2,075
#9Tennessee Valley Authority163.1 TWh204
#10Florida Power & Light Co.150.9 TWh187
#12New York Independent System Operator134.4 TWh1,211
#13Duke Energy Carolinas112.5 TWh565
#15ISO New England111.1 TWh1,577
#16Bonneville Power Administration88.3 TWh163
#17Duke Energy Progress East64.8 TWh559
#18PacifiCorp East61.1 TWh216
#19Salt River Project Agricultural Improvement and Power District60.0 TWh48