ISO New England

Balancing Authority Summary Information

ISO New England is ranked #15 out of 64 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 Jul 2026
Annual Generation 111.1 TWh
Power Plants1,629
Utilities833
Ranked #15 out of 64 in terms of net annual generation
Ranked #10 out of 53 in terms of annual generation from natural gas
Power Plant Types Natural Gas | 54.9% Nuclear | 25% Wind | 5.1% Water | 4.5% Other Fuel | 4.4% Solar | 1.6% 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 601 to 700 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
205 Sturbridge AAltus Power America Management, LLCBrimfield, MA4 GWhMay 2014Dec 2025 Solar
Barker LowerKEI (Maine) Power Management (III) LLCAuburn, ME4 GWhMar 1986Dec 2025 Water
Bullock Road Solar 1Bullock Road Solar 1, LLCFreetown, MA4 GWhJun 2018Dec 2025 Solar
Rounseville SolarRounseville Solar 1, LLCRochester, MA4 GWhJan 2020Dec 2025 Solar
Gardner - Otter River RoadOtter River Road Solar LLCGardner, MA4 GWhSep 2019Dec 2025 Solar
651 Chase Solar NGNuGen Capital ManagementLunenburg, MA4 GWhMay 2014Dec 2025 Solar
Marshfield 6Green Mountain Power CorpMarshfield, VT4 GWhDec 1926Dec 2025 Water
Braley Road 2Mass Solar, LLCFreetown, MA4 GWhFeb 2015Dec 2025 Solar
Cottage Street Solar FacilityWestern Massachusetts Electric CompanySpringfield, MA4 GWhApr 2014May 2026 Solar
Syncarpha Tewksbury Hybrid CSGSyncarpha Tewksbury, LLCTewksbury, MA4 GWhJan 2022Dec 2025 Solar
Kearsarge HaverhillKearsarge Haverhill LLCHaverhill, MA4 GWhFeb 2021Dec 2025 Solar
Halifax SolarNuGen Capital ManagementHalifax, MA4 GWhJul 2015Dec 2025 Solar
Samoset SolarSamoset Solar, LLCRockport, ME4 GWhJun 2023Dec 2025 Solar
Texon Hydroelectric ProjectHitchcock Hydro, LLCRussell, MA4 GWhDec 1981Dec 2025 Water
Swaggertown Solar IGreen Street Power PartnersGlenville, NY4 GWhOct 2024Dec 2025 Solar
Madawaska SolarSoCore Energy LLCSaint David, ME4 GWhNov 2024Dec 2025 Solar
New Milford Gas RecoveryWM Renewable Energy LLCNew Milford, CT4 GWhApr 2008Dec 2025 Landfill Gas
Upper BarkerKEI (Maine) Power Management (III) LLCAuburn, ME4 GWhApr 1987Dec 2025 Water
GSPP 641 Ferris Road WestGreen Street Power PartnersLawrence, NY4 GWhNov 2024Dec 2025 Solar
Spencer Solar MACitizens Enterprises CorporationSpencer, MA4 GWhFeb 2020Dec 2025 Solar
Mt Wachusett Community CollegeMt Wachusett Community CollegeGardner, MA4 GWhFeb 2011May 2026 Wind
Niagara Bottling - BloomfieldWestbound Solar 3, LLCBloomfield, CT4 GWhOct 2022Dec 2025 Solar
Nautilus Goat Island Solar LLC (CSG)Nautilus Solar SolutionsBurrillville, RI4 GWhJul 2019Dec 2025 Solar
North BrookfieldMass Solar, LLCNorth Brookfield, MA4 GWhMay 2014Dec 2025 Solar
Princeton Wind FarmTown of Princeton - (MA)Princeton, MA4 GWhDec 2009Dec 2025 Wind
North Nobleboro Road, LLCREA Investments, LLCWaldoboro, ME4 GWhMay 2021Dec 2025 Solar
ZPD-PT Solar Project 2017-023 LLC HybridAES Distributed EnergySouthbridge, MA4 GWhDec 2020Dec 2025 Solar : 99.9%
Alicea Solar Project Hybrid CSGAES Distributed EnergySouthbridge, MA4 GWhNov 2020Dec 2025 Solar
Wesleyan University Cogen 1Wesleyan UniversityMiddletown, CT4 GWhJan 2009Dec 2025 Natural Gas
Westport (MA)Sunrise on Drift Rd. LLCWestport, MA4 GWhSep 2020Dec 2024 Solar
Forbes Street SolarAltus Power America Management, LLCEast Providence, RI4 GWhNov 2013Dec 2025 Solar
Westford Solar ParkMN8 Energy LLCWestford, MA4 GWhMar 2012Dec 2025 Solar
ME - Novel (Lighthouse Ph I) Mars HillMars Hill Road Solar Farm, LLCWestfield, ME4 GWhJul 2024Dec 2025 Solar
Clemons Road SolarRPNY Solar 4, LLCMinoa, NY4 GWhJun 2024Dec 2025 Solar
Iron Horse Solar I CSGIron Horse Solar 1, LLCNorth Billerica, MA4 GWhNov 2016Dec 2025 Solar
ME Novel Lighthouse - Penobscot CSGLuminace Sunbeam Development Holdings, LLCPatten, ME4 GWhAug 2024Dec 2025 Solar
Carver FallsGreen Mountain Power CorpHampton, NY4 GWhJan 1922Dec 2025 Water
Town of Needham VNEM CSGTesla Inc.Needham, MA4 GWhJan 2016Dec 2025 Solar
Shrewsbury SolarRWE Clean EnergyShrewsbury, MA4 GWhSep 2012Dec 2025 Solar
GardinerKEI (Maine) Power Management (III) LLCGardiner, ME4 GWhJun 1985Jun 2025 Water
Bellingham PVTerraform ArcadiaDouglas, MA4 GWhSep 2013Dec 2025 Solar
Antares-GRE 314 East Lyme LLCMN8 Energy LLCEast Lyme, CT4 GWhMay 2014May 2026 Solar
196 Tremont St(CSG)196TRE WHAM8 Solar, LLCCarver, MA4 GWhOct 2021Dec 2024 Solar
Mechanic Street (CSG)Nautilus Solar SolutionsPresque Island, ME4 GWhNov 2024Dec 2025 Solar
Montague Road SolarMontague Road Solar, LLCAmherst, MA4 GWhNov 2019Dec 2025 Solar
Southern Sky Renew Energy Berkley LLCSouthern Sky Renewable Energy Berkley, LLCBerkley, MA4 GWhMay 2014Dec 2025 Solar
Mt. Tom Solar Project HybridMt. Tom Solar, LLCHolyoke, MA4 GWhDec 2016Dec 2025 Solar
Sheridan Road Solar FarmREA Investments, LLCAshland, ME4 GWhJul 2024Dec 2025 Solar
Meadow SolarAltus Power America Management, LLCBoston, MA4 GWhNov 2016Dec 2025 Solar
Fairhaven MA 2RWE Clean EnergyFairhaven, MA4 GWhAug 2021Dec 2025 Solar
Peterson Road SolarPeterson Road Solar, LLCPalmer, MA4 GWhMar 2017Dec 2025 Solar
Deerfield CSG SolarMN8 Energy LLCDeerfield, MA4 GWhNov 2017Dec 2025 Solar
Grafton PVMN8 Energy LLCGrafton, MA4 GWhSep 2016Dec 2025 Solar
Groveland SolarRWE Clean EnergyGroveland, MA4 GWhNov 2012Dec 2025 Solar
Missile Street (CSG)Nautilus Solar SolutionsPresque Island, ME4 GWhNov 2024Dec 2025 Solar
ISM Solar Cranston CSGNautilus Solar SolutionsCranston, RI4 GWhNov 2020Dec 2025 Solar
Livermore Falls CSGLivermore Falls CSG, LLCLivermore Falls, ME4 GWhApr 2022Dec 2025 Solar
Franklin 1CD US Solar MT 2 LLCWrentham, MA4 GWhOct 2013Dec 2025 Solar
580 River SolarNuGen Capital ManagementWinchendon, MA4 GWhAug 2018Dec 2025 Solar
Chicopee SolarCitizens Enterprises CorporationChicopee, MA4 GWhNov 2013Dec 2025 Solar
Ajax Solar, LLC (MA)Green Street Power PartnersWest Bridgewater, MA4 GWhNov 2017Dec 2025 Solar
Smithfield Solar Farm, LLCSmithfield Solar FarmSmithfield, RI4 GWhJun 2020Dec 2025 Solar
Exelon Medway LLCConstellation Power, IncMedway, MA4 GWhJun 1970Dec 2025 Distillate Fuel Oil
Syncarpha Leicester Hybrid CSGSyncarpha Leicester, LLCLeicester, MA4 GWhMay 2021Dec 2025 Solar
BNRG Masardis (CSG)Nautilus Solar SolutionsMasardis, ME4 GWhNov 2024Dec 2025 Solar
WED GW Solar, LLCCleanCapital HoldingsLincoln, RI4 GWhDec 2018Dec 2025 Solar
BWC Maces Pond LLCNavisun LLCRockport, ME4 GWhNov 2021Dec 2025 Solar
1639 RT 29 Solar 21639 RT 29 Solar 2, LLCGloversville, NY4 GWhNov 2020Dec 2025 Solar
CMEEC - Polaris Park Solar HybridTesla Inc.Gordon, CT4 GWhJul 2017Dec 2025 Solar : 99.9%
Town of Amherst SolarAgilitas Energy, Inc.Amherst, MA4 GWhJul 2022Dec 2025 Solar
ISM Solar Shepherd AcresNavisun LLCSouth Paris, ME4 GWhNov 2024Dec 2025 Solar
Boutillier Solar, LLC CSG38 Degrees North, LLCLeicester, MA5 GWhMar 2018Dec 2025 Solar
SandwichLSE Ophiuchus LLCSandwich, MA5 GWhJun 2023Dec 2024 Solar
Milton HydroSFR Hydro CorMilton, NH5 GWhDec 1913Dec 2025 Water
Marshfield PVTerraform ArcadiaMarshfield, MA5 GWhNov 2013Dec 2025 Solar
DevensAltus Power America Management, LLCShirley, MA5 GWhMay 2014Dec 2025 Solar
WED Kingstown Solar I - East ArrayCleanCapital HoldingsWashington, RI5 GWhNov 2017Dec 2025 Solar
Tolland Solar NG LLCNuGen Capital ManagementTolland, MA5 GWhSep 2014Dec 2025 Solar
SELCO Community SolarMassachusetts Mun Wholes Electric CoShrewsbury, MA5 GWhMay 2018Dec 2025 Solar
Saratoga Solar IV, LLCGreen Street Power PartnersRock City Falls, NY5 GWhSep 2023Dec 2025 Solar
Kearsarge Bellingham PVKearsarge Bellingham LLCBellingham, MA5 GWhNov 2016Dec 2025 Solar
Green Providence Wind II, LLCGreen Providence Wind II, LLCProvidence, RI5 GWhNov 2021Dec 2025 Wind
Kearsarge Southwick LLCKearsarge Solar LLCSouthwick, MA5 GWhFeb 2015Dec 2025 Solar
Pleasant StreetGreenbacker Renewable Energy CorporationWilton, ME5 GWhNov 2023Dec 2025 Solar
Millbury SolarEvergreen Wind, LLCMillbury, MA5 GWhMar 2014Dec 2025 Solar
Athens RidgeGreenbacker Renewable Energy CorporationAthens, ME5 GWhFeb 2024Dec 2025 Solar
ActonActon H Road Solar 1, LLCActon, ME5 GWhNov 2021Dec 2025 Solar
Pike Road Solar (NY)RPNY Solar 6, LLCBatavia, NY5 GWhJun 2024Dec 2025 Solar
Falmouth Landfill SolarCitizens Enterprises CorporationFalmouth, MA5 GWhMar 2017Dec 2025 Solar
East BarnetGreen Mountain Power CorpBarnet, VT5 GWhAug 1984Dec 2025 Water
BrockelmanIntegrys MA Solar, LLCLancaster, MA5 GWhOct 2013Dec 2025 Solar
West A&B Solar Project Hybrid CSGAES Distributed EnergySouthbridge, MA5 GWhNov 2020Dec 2025 Solar
Canton GLC Solar, LLCREA Investments, LLCCanton, ME5 GWhMar 2024Dec 2025 Solar
Elm StreetISM Solar Dighton 3, LLCDighton, MA5 GWhNov 2020Dec 2025 Solar
NationwideNationwide Solar Energy LLCLancaster, MA5 GWhMay 2021Dec 2025 Solar
Oxford SolarCitizens Enterprises CorporationOxford, MA5 GWhJan 2020Dec 2025 Solar
Exeter Ten (CSG)Nautilus Solar SolutionsExeter, RI5 GWhNov 2024Dec 2025 Solar
CED Chicopee SolarRWE Clean EnergyChicopee, MA5 GWhJun 2017Dec 2025 Solar
Webb Road SolarNextGrid Mastic, LLCWaterville, ME5 GWhAug 2022Dec 2025 Solar
AugustaMaine DG Solar Augusta, LLCAugusta, ME5 GWhFeb 2022Dec 2025 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator169.4 TWh2,135
#9Tennessee Valley Authority163.4 TWh207
#10Florida Power & Light Co.152.2 TWh187
#12New York Independent System Operator134.3 TWh1,299
#13Duke Energy Carolinas112.6 TWh577
#15ISO New England111.1 TWh1,629
#16Bonneville Power Administration91.6 TWh167
#17Duke Energy Progress East64.5 TWh565
#18PacifiCorp East60.9 TWh222
#19Salt River Project Agricultural Improvement and Power District60.3 TWh49