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 501 to 600 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Carver FallsGreen Mountain Power CorpHampton, NY4 GWhJan 1922Dec 2025 Water
Nexamp Peak CSGNexamp Peak, LLCHancock, MA2 GWhNov 2015Dec 2025 Solar
Syncarpha Hancock II CSGSyncarpha Hancock II, LLCHancock, MA3 GWhOct 2017Dec 2025 Solar
Syncarpha Hancock I CSGSyncarpha Hancock I, LLCHancock, MA3 GWhOct 2017Dec 2025 Solar
Jiminy Peak Wind QFJiminy Peak Mountain Resort, LLCHancock, MA2 MWhJul 2007Apr 2025 Wind
Dartmouth College Heating PlantDartmouth CollegeHanover, NH11 GWhDec 1969May 2026 Residual Fuel Oil
Hardwick-Athol & Eagle HillMadison Energy Investments LLCHardwick, MA2 GWhJun 2015Sep 2025 Solar
ER Center Road Solar, LLCAltus Power America Management, LLCHardwick, VT3 GWhApr 2022Dec 2025 Solar
Billings RoadAltus Power America Management, LLCHardwick, VT2 GWhOct 2021Dec 2025 Solar
Harmony Solar (ME)Maine DG Solar Harmony, LLCHarmony, ME9 GWhJul 2022Dec 2025 Solar
Ocean State PowerOcean State Power CoHarrisville, RI1 TWhNov 1990Dec 2025 Natural Gas : 99.7%
Ocean State Power IIOcean State Power IIHarrisville, RI577 GWhSep 1991Dec 2025 Natural Gas : 99.9%
Trinity College Fuel CellOnsite Partners, LLCHartford, CT12 GWhJul 2018Dec 2024 Natural Gas
Hartford Landfill Solar EGFMaterials Innovation Recycling AuthorityHartford, CT1 GWhMay 2014Dec 2024 Solar
HSCo CHPCartier Energy, LLCHartford, CT28 GWhSep 2009Dec 2025 Natural Gas
Hartford Hospital CogenerationCartier Energy, LLCHartford, CT39 GWhJun 1988Dec 2024 Natural Gas
Enfield Solar OneEnfield Solar One, LLCHartford, CT8 GWhMar 2024Dec 2025 Solar
GMP Solar - HartfordGreen Mountain Power CorpHartford, VT7 GWhNov 2016May 2026 Solar
WilderGreat River Hydro, LLCHartford, VT134 GWhOct 1950Dec 2025 Water
Hartland SolarMadison Energy Holdings LLCHartland, ME7 GWhNov 2021Dec 2025 Solar
Harwich LandfillClean Focus Yield, LLCHarwich, MA6 GWhJul 2014Dec 2025 Solar
Hatfield Renewables Community SolarHatfield Renewables, LLCHatfield, MA3 GWhAug 2017Dec 2025 Solar
Hatfield Solar PVNSTAR Electric CompanyHatfield, MA5 GWhNov 2018Dec 2025 Solar
DG Haverhill CSGDG Haverhill LLCHaverhill, MA7 GWhAug 2017Dec 2025 Solar
Haverhill Solar Power ProjectMassachusetts Electric CoHaverhill, MA1 GWhNov 2010Dec 2025 Solar
Covanta HaverhillOgden Projects Inc-HaverhillHaverhill, MA287 GWhApr 1989May 2026 Non-biogenic Municipal Solid Waste : 52.8% Biogenic Municipal Solid Waste : 43.2% Distillate Fuel Oil : 4.1%
Bradford SolarBradford Solar, LLCHaverhill, MA8 GWhMar 2017Dec 2024 Solar
Kearsarge HaverhillKearsarge Haverhill LLCHaverhill, MA4 GWhFeb 2021Dec 2025 Solar
Williamsburg Solar LLC VNEM CSGTesla Inc.Haydenville, MA1 GWhJan 2016Dec 2025 Solar
Highgate FallsVillage of Swanton - (VT)Highgate, VT32 GWhJul 1923Dec 2025 Water
Hillsborough HosierySilverstreet HydroHillsboro, NH2 GWhNov 1989Dec 2024 Water
JackmanCentral Rivers Power NH, LLCHillsborough, NH8 GWhJan 1926Aug 2025 Water
VEC Magee Hill SolarSoCore Energy LLCHinesburgh, VT2 GWhOct 2017Dec 2025 Solar
Hinsdale Solar PVNSTAR Electric CompanyHinsdale, MA3 GWhDec 2018Dec 2025 Solar
HiramBrookfield White Pine Hydro LLCHiram, ME31 GWhDec 1916Dec 2025 Water
Bonny EagleBrookfield White Pine Hydro LLCHollis, ME31 GWhDec 1909Dec 2025 Water
Holliston Solar CSGMN8 Energy LLCHolliston, MA1 GWhJun 2015Dec 2025 Solar
Bourne (MA) - Holliston INVT LICENSES, LLCHolliston, MA3 GWhNov 2014Dec 2025 Solar
Holliston LLCGreenbacker Renewable Energy CorporationHolliston, MA2 GWhSep 2020Dec 2025 Solar
Riverside HolyokeCity of Holyoke Gas and Elec Dept - (MA)Holyoke, MA22 GWhDec 1905Dec 2025 Water
Hadley FallsCity of Holyoke Gas and Elec Dept - (MA)Holyoke, MA137 GWhDec 1951Dec 2025 Water
Holyoke Solar Cooperative at MuellerHolyoke Solar LLCHolyoke, MA4 GWhNov 2011Dec 2025 Solar
BoatlockCity of Holyoke Gas and Elec Dept - (MA)Holyoke, MA12 GWhDec 1920Dec 2025 Water
ChemicalCity of Holyoke Gas and Elec Dept - (MA)Holyoke, MA5 GWhDec 1934Dec 2025 Water
Mt. Tom Solar Project HybridMt. Tom Solar, LLCHolyoke, MA4 GWhDec 2016Dec 2025 Solar
Cabot HolyokeCity of Holyoke Gas and Elec Dept - (MA)Holyoke, MA3 GWhDec 1892Dec 2025 Water
HooksettCentral Rivers Power NH, LLCHooksett, NH6 GWhJul 1927Dec 2025 Water
BWC Origination 19BWC Origination 19 LLCHopedale, MA2 GWhJul 2017Dec 2025 Solar
Hopkinton CSGAltus Power America Management, LLCHopkinton, MA3 GWhMar 2019Dec 2025 Solar
GD Hopkinton Main I, LLCGD Hopkinton Main I, LLCHopkinton, RI16 GWhOct 2020Dec 2025 Solar
Corkwood Solar (CSG)NextGrid Corkwood, LLCHowland, ME6 GWhOct 2023Dec 2025 Solar
Williamsville Hybrid CSG147 Williamsville Solar 1, LLCHubbardston, MA9 GWhAug 2021Dec 2024 Solar
KS Solar Six LLCKearsarge Solar LLCHubbardston, MA3 GWhNov 2013Dec 2025 Solar
Cherry StreetTown of Hudson - (MA)Hudson, MA320 MWhApr 1951Dec 2025 Distillate Fuel Oil : 58.5% Natural Gas : 41.5%
HudsonCaptona Hudson LLCHudson, MA5 GWhApr 2017Dec 2025 Solar
Cream Street SolarCream Street Solar, LLCHyde Park, NY4 GWhNov 2020Dec 2025 Solar
W K SandersVillage of Morrisville - (VT)Hyde Park, VT716 MWhJun 1983Nov 2025 Water
MasspowerMasspowerIndian Orchard, MA442 GWhJun 1993Dec 2025 Natural Gas
Indian OrchardCentral Rivers Power MA, LLCIndian Orchard, MA3 GWhDec 1927Dec 2025 Water
High Street StationTown of Ipswich - (MA)Ipswich, MA153 MWhMay 1937Dec 2025 Natural Gas : 92.3% Distillate Fuel Oil : 7.7%
Ipswich Wind TurbineTown of Ipswich - (MA)Ipswich, MA2 GWhApr 2011Dec 2025 Wind
Ball Mountain HydroEagle Creek Renewable Energy, LLCJamaica, VT995 MWhMar 2016Dec 2025 Water
International Paper Jay HydroEagle Creek Renewable Energy, LLCJay, ME12 GWhDec 1911Dec 2025 Water
International Paper Riley HydroEagle Creek Renewable Energy, LLCJay, ME20 GWhNov 1981Dec 2025 Water
Jericho Landfill Solar FarmSoCore Energy LLCJerico, VT1 GWhDec 2020Dec 2025 Solar
Jericho Gravel Solar FarmSoCore Energy LLCJerico, VT2 GWhDec 2020Dec 2025 Solar
Jewett City 1Connecticut Mun Elec Engy CoopJewett City, CT139 MWhJan 2010Dec 2025 Distillate Fuel Oil
WED Plainfield II, LLCWED Plainfield II, LLCJohnston, RI8 GWhDec 2018Dec 2025 Wind
WED Green Hill, LLCWED Green Hill, LLCJohnston, RI6 GWhDec 2018May 2026 Wind
Rhode Island State Energy CenterRISEC Operating ServicesJohnston, RI4 TWhSep 2002Apr 2026 Natural Gas
Johnston LFG Turbine PlantRhode Island LFG GencoJohnston, RI173 GWhApr 2013May 2026 Landfill Gas
WED Plainfield III, LLCWED Plainfield III, LLCJohnston, RI7 GWhDec 2018Dec 2025 Wind
WED Plainfield, LLCWED Plainfield, LLCJohnston, RI7 GWhDec 2018Dec 2025 Wind
Orbit Energy RIAnaergiaJohnston, RI144 MWhJun 2017Dec 2024 Other Biomass Gas
WED Shun I, LLCWED Shun I, LLCJohnston, RI7 GWhDec 2018May 2026 Wind
Ridgewood Providence PowerRhode Island LFG GencoJohnston, RI4 GWhJul 2005Dec 2025 Landfill Gas
WED Shun II, LLCWED Shun II, LLCJohnston, RI7 GWhDec 2018Dec 2025 Wind
WED Shun III, LLCWED Shun III, LLCJohnston, RI8 GWhDec 2018Dec 2025 Wind
Plainfield PikeCaptona Plainfield Pike Johnston LLCJohnston, RI4 GWhMay 2019Dec 2025 Solar
A Street 1Captona A Street 1 Johnston LLCJohnston, RI2 GWhNov 2018Dec 2025 Solar
A Street 2Captona A Street 2 Johnston LLCJohnston, RI3 GWhNov 2018Dec 2025 Solar
Pine HillOnsite Partners, LLCJohnston, RI8 GWhJul 2020Dec 2025 Solar
NE Renewable Power JonesboroStored Solar J&WEJonesboro, ME16 MWhNov 1987Jun 2025 Gaseous Propane : 66.7% Wood/Wood Waste Solids : 33.3%
Raboth - Marion DriveMadison Energy Holdings LLCKingston, MA4 GWhFeb 2021Dec 2025 Solar
Lakeville SolarC2 MA Lakeville, LLCLakeville, MA3 GWhNov 2018Dec 2025 Solar
NationwideNationwide Solar Energy LLCLancaster, MA5 GWhMay 2021Dec 2025 Solar
Brockelman Road Solar 2Brockelman Road Solar 2, LLCLancaster, MA2 GWhJul 2021Dec 2025 Solar
Amaterasu LLCAES Distributed EnergyLancaster, MA7 GWhMay 2021Dec 2025 Solar
ZPD-PT Solar Project 2017-038 Hybrid LLCAES Distributed EnergyLancaster, MA8 GWhMar 2021Dec 2025 Solar
EDF LancasterCleanCapital HoldingsLancaster, MA5 GWhJun 2014Dec 2025 Solar
BrockelmanIntegrys MA Solar, LLCLancaster, MA5 GWhOct 2013Dec 2025 Solar
Berkshire Wind Power ProjectMassachusetts Mun Wholes Electric CoLanesboro, MA32 GWhApr 2011May 2026 Wind
Skyline SolarSoCore Energy LLCLanesborough, MA8 GWhAug 2022Dec 2025 Solar
Partridge SolarSoCore Energy LLCLanesborough, MA8 GWhAug 2022Dec 2025 Solar
Saddleback SolarSoCore Energy LLCLanesborough, MA4 GWhAug 2022Dec 2024 Solar
Lawrence Hydroelectric AssociatesCentral Rivers Power US, LLCLawrence, MA59 GWhJun 1981Dec 2025 Water
GSPP 641 Ferris Road WestGreen Street Power PartnersLawrence, NY4 GWhNov 2024Dec 2025 Solar
GSPP 409 Ferris RoadGreen Street Power PartnersLawrence, NY8 GWhNov 2024Dec 2025 Solar
Wilson Solar (CT)Ecos Energy LLCLebanon, CT2 GWhFeb 2018Dec 2025 Solar
Jefferson Solar (CT)Ecos Energy LLCLebanon, CT2 GWhDec 2017Dec 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