ISO New England

Balancing Authority Summary Information

ISO New England is ranked #14 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 Oct 2025
Annual Generation 104.0 TWh
Power Plants1,577
Utilities819
Ranked #14 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 | 57.1% Nuclear | 24.8% Water | 5.1% Other Fuel | 4.5% Wind | 3.9% Solar | 1.5% Coal | 0.4%

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Daily Net Generation for ISO New England for the past 3 Years

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List of All ISO New England Power Plants

Displaying Results 501 to 600 of 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Halifax SolarNuGen Capital ManagementHalifax, MA4 GWhJul 2015Dec 2024 Solar
Hamilton SolarEcos Energy LLCLebanon, CT2 GWhFeb 2018Dec 2024 Solar
HampdenAltus Power America Management, LLCHampden, MA5 GWhJun 2015Dec 2024 Solar
Hampden Solar PVNSTAR Electric CompanyHampden, MA6 GWhOct 2019Dec 2024 Solar
Hampshire College HybridTesla Inc.Amherst, MA5 GWhApr 2017Dec 2024 Solar
Hampton FacilityFoss Manufacturing Company LLCHampton, NH23 GWhSep 1978Jul 2025 Natural Gas
Hancock Wind PlantOnward EnergyT22 MD, ME120 GWhNov 2016Jul 2025 Wind
Happy Hollow CSG HybridREA Investments, LLCWinchendon, MA9 GWhSep 2019Dec 2024 Solar
Harbor Road Solar 1Harbor Road Solar 1, LLCCheshire, MA3 GWhNov 2021Dec 2024 Solar
Hardwick-Athol & Eagle HillSEC CRSD Solar One, LLCHardwick, MA3 GWhJun 2015Dec 2024 Solar
Harmony Solar (ME)Maine DG Solar Harmony, LLCHarmony, ME9 GWhJul 2022Dec 2024 Solar
HarrimanGreat River Hydro, LLCWhitingham, VT91 GWhApr 1924Dec 2024 Water
Harris HydroBrookfield White Pine Hydro LLCWest Forks, ME170 GWhDec 1953Dec 2024 Water
Hartford Hospital CogenerationCartier Energy, LLCHartford, CT39 GWhJun 1988Dec 2024 Natural Gas
Hartford Landfill Solar EGFMaterials Innovation Recycling AuthorityHartford, CT1 GWhMay 2014Dec 2024 Solar
Hartland SolarMadison Energy Holdings LLCHartland, ME7 GWhNov 2021Dec 2024 Solar
Harwich LandfillClean Focus Yield, LLCHarwich, MA6 GWhJul 2014Dec 2024 Solar
Hatfield Renewables Community SolarHatfield Renewables, LLCHatfield, MA3 GWhAug 2017Dec 2024 Solar
Hatfield Solar PVNSTAR Electric CompanyHatfield, MA6 GWhNov 2018Dec 2024 Solar
Haverhill Solar Power ProjectMassachusetts Electric CoHaverhill, MA1 GWhNov 2010Dec 2024 Solar
Hewlett-Packard (HP) - Andover, MATesla Inc.Andover, MA2 GWhMay 2017Dec 2024 Solar
High Street StationTown of Ipswich - (MA)Ipswich, MA197 MWhMay 1937Dec 2024 Natural Gas : 91.9% Distillate Fuel Oil : 8.1%
Highgate FallsVillage of Swanton - (VT)Highgate, VT47 GWhJul 1923Dec 2024 Water
Hillsborough HosierySilverstreet HydroHillsboro, NH2 GWhNov 1989Dec 2024 Water
Hinsdale Solar PVNSTAR Electric CompanyHinsdale, MA3 GWhDec 2018Dec 2024 Solar
HiramBrookfield White Pine Hydro LLCHiram, ME40 GWhDec 1916Dec 2024 Water
Holiday Hill Community WindGreenbacker Renewable Energy CorporationRussell, MA10 GWhNov 2019Dec 2024 Wind
Holliston LLCGreenbacker Renewable Energy CorporationHolliston, MA2 GWhSep 2020Dec 2024 Solar
Holliston Solar CSGMN8 Energy LLCHolliston, MA1 GWhJun 2015Dec 2024 Solar
Holyoke Solar Cooperative at MuellerHolyoke Solar LLCHolyoke, MA4 GWhNov 2011Dec 2024 Solar
HooksettCentral Rivers Power NH, LLCHooksett, NH5 GWhJul 1927Dec 2024 Water
Hope Farm Solar, LLCAdapture Renewables, Inc.Cranston, RI16 GWhAug 2019Dec 2024 Solar
Hopkins Hill CSGNautilus Solar SolutionsWest Greenwich, RI9 GWhOct 2020Dec 2024 Solar
Hopkinton CSGAltus Power America Management, LLCHopkinton, MA3 GWhMar 2019Dec 2024 Solar
Hopkinton Phase 2Vista Solar, Inc.Ashaway, RI4 GWhAug 2020Dec 2024 Solar
Howard Lane SolarNJR Clean Energy Ventures CorporationGlocester, RI4 GWhAug 2023Nov 2024 Solar
HSCo CHPCartier Energy, LLCHartford, CT27 GWhSep 2009Dec 2024 Natural Gas
HudsonCaptona Hudson LLCHudson, MA6 GWhApr 2017Dec 2024 Solar
Hunt Farm SolarAltus Power America Management, LLCOrange, MA3 GWhAug 2013Dec 2024 Solar
Hunt Road SolarCitizens Enterprises CorporationAmesbury, MA7 GWhNov 2016Dec 2024 Solar
Huntington FallsGreen Mountain Power CorpWeybridge, VT23 GWhSep 1988Dec 2024 Water
Hurteau Solar Project HybridAES Distributed EnergyUxbridge, MA3 GWhFeb 2020Dec 2024 Solar
Huxley SolarHuxley Solar, LLCLudlow, MA10 GWhNov 2022Dec 2024 Solar
Hydro Kennebec ProjectHydro Kennebec LLCWinslow, ME27 GWhDec 1988Dec 2024 Water
IKEA New Haven Rooftop PV & Fuel CellIKEA Property IncNew Haven, CT3 GWhJun 2012Dec 2024 Natural Gas : 73.1% Solar : 26.9%
Incom Solar, LLC CSG38 Degrees North, LLCCharlton, MA4 GWhOct 2017Dec 2024 Solar
Indeck Jonesboro Energy CenterStored Solar J&WEJonesboro, ME16 MWhNov 1987Jun 2025 Gaseous Propane : 66.7% Wood/Wood Waste Solids : 33.3%
Indeck West Enfield Energy CenterStored Solar J&WEWest Enfield, ME51 GWhNov 1987Dec 2024 Wood/Wood Waste Solids : 99.9%
Indian Hill Solar LLCCVI CleanCapital Solar 1 LLCPalmer, MA2 GWhMar 2014Dec 2024 Solar
Indian OrchardCentral Rivers Power MA, LLCIndian Orchard, MA6 GWhDec 1927Dec 2024 Water
Indian Orchard PV FacilityWestern Massachusetts Electric CompanySpringfield, MA3 GWhNov 2011Dec 2024 Solar
Indian River HydroEagle Creek Renewable Energy, LLCRussell, MA1 GWhNov 1909Dec 2024 Water
Integrys MA Solar, LLC - Ashburnham SiteIntegrys MA Solar, LLCAshburnham, MA3 GWhNov 2013Dec 2024 Solar
International Paper Jay HydroEagle Creek Renewable Energy, LLCJay, ME7 GWhDec 1911Dec 2024 Water
International Paper Livermore HydroEagle Creek Renewable Energy, LLCLivermore Falls, ME17 GWhDec 1909Dec 2024 Water
International Paper Riley HydroEagle Creek Renewable Energy, LLCJay, ME18 GWhNov 1981Dec 2024 Water
International Paper Woronoco MillEagle Creek Renewable Energy, LLCWoronoco, MA5 GWhDec 1912Dec 2024 Water
IOS - MEW Phase 1Madison Energy Holdings LLCMadison, ME1 GWhDec 2016Dec 2024 Solar
Ipswich Wind TurbineTown of Ipswich - (MA)Ipswich, MA2 GWhApr 2011Dec 2024 Wind
Iron Horse Solar 4, LLCIron Horse Solar 4, LLCNorth Billerica, MA7 GWhMay 2017Dec 2024 Solar
Iron Horse Solar I CSGIron Horse Solar 1, LLCNorth Billerica, MA4 GWhNov 2016Dec 2024 Solar
ISM Solar Cranston CSGNautilus Solar SolutionsCranston, RI4 GWhNov 2020Dec 2024 Solar
ISM Solar Dighton 2, LLC CSG38 Degrees North, LLCDighton, MA4 GWhNov 2017Dec 2024 Solar
ISM Solar Shepherd AcresNavisun LLCSouth Paris, ME65 MWhNov 2024Dec 2024 Solar
J C McNeilCity of Burlington Electric - (VT)Burlington, VT222 GWhMay 1984Jul 2025 Wood/Wood Waste Solids : 99.9%
JackmanCentral Rivers Power NH, LLCHillsborough, NH9 GWhJan 1926Dec 2024 Water
Jackson Solar (CT)Ecos Energy LLCGriswold, CT1 GWhNov 2019Dec 2024 Solar
Jefferson Solar (CT)Ecos Energy LLCLebanon, CT2 GWhDec 2017Dec 2024 Solar
Jericho Gravel Solar FarmSoCore Energy LLCJerico, VT2 GWhDec 2020Dec 2024 Solar
Jericho Landfill Solar FarmSoCore Energy LLCJerico, VT2 GWhDec 2020Dec 2024 Solar
Jericho PowerJericho Power LLCBerlin, NH23 GWhDec 2015Jul 2025 Wind
Jewett City 1Connecticut Mun Elec Engy CoopJewett City, CT205 MWhJan 2010Dec 2024 Distillate Fuel Oil
JH Solar, LLC CSG38 Degrees North, LLCNorth Brookfield, MA2 GWhOct 2017Dec 2024 Solar
Joe JennyAMP MA Joe JennyOxford, MA2 GWhApr 2018Dec 2024 Solar
Johnston LFG Turbine PlantRhode Island LFG GencoJohnston, RI179 GWhApr 2013Jul 2025 Landfill Gas
Johnston SolarConcord New EnergyTown of Johnston, RI2 GWhJun 2015Dec 2024 Solar
Katama FarmClean Focus Yield, LLCEdgartown, MA1 GWhMay 2014Dec 2024 Solar
Kearsarge 100 Sohier RdKearsarge Beverly LLCBeverly, MA5 GWhApr 2023Dec 2024 Solar
Kearsarge AcushnetKearsarge Acushnet LLCAcushnet, MA3 GWhJan 2020Dec 2024 Solar
Kearsarge Amesbury HybridKearsarge Amesbury LLCAmesbury, MA5 GWhNov 2019Dec 2024 Solar
Kearsarge Bellingham PVKearsarge Bellingham LLCBellingham, MA5 GWhNov 2016Dec 2024 Solar
Kearsarge Concord IIKearsarge Concord II LLCConcord, MA7 GWhDec 2016Dec 2024 Solar
Kearsarge East ProvidenceKearsarge East Providence LLCEast Providence, RI3 GWhNov 2020Dec 2024 Solar
Kearsarge FoglandKearsarge Fogland LLCTiverton, RI3 GWhOct 2020Dec 2024 Solar
Kearsarge GBKearsarge GB LLCGreat Barrington, MA3 GWhJul 2018Dec 2024 Solar
Kearsarge GillKearsarge Gill LLCGill, MA3 GWhDec 2017Dec 2024 Solar
Kearsarge GranbyKearsarge Granby LLCGranby, MA4 GWhFeb 2017Dec 2024 Solar
Kearsarge HaverhillKearsarge Haverhill LLCHaverhill, MA4 GWhFeb 2021Dec 2024 Solar
Kearsarge Ludlow LLCKearsarge Ludlow LLCLudlow, MA6 GWhNov 2020Dec 2024 Solar
Kearsarge MontagueKearsarge Montague LLCMontague, MA7 GWhMay 2018Dec 2024 Solar
Kearsarge Montague BD(CSG)Kearsarge Montague BD LLCMontague, MA3 GWhOct 2021Dec 2024 Solar
Kearsarge SKSC1 LLCKearsarge SKSC1 LLCSouth Kingstown, RI6 GWhSep 2018Dec 2024 Solar
Kearsarge SKSC2 LLCKearsarge SKSC2 LLCSouth Kingstown, RI6 GWhSep 2018Dec 2024 Solar
Kearsarge Smithfield LLCKearsarge Smithfield LLCBurrillville, RI14 GWhMar 2023Dec 2024 Solar
Kearsarge Southwick LLCKearsarge Solar LLCSouthwick, MA4 GWhFeb 2015Dec 2024 Solar
Kearsarge Upper UnionKearsarge Upper Union LLCFranklin, MA2 GWhFeb 2023Dec 2024 Solar
Kearsarge UxbridgeKearsarge Uxbridge LLCUxbridge, MA3 GWhAug 2018Dec 2024 Solar
Kearsarge West Shore Solar LLCKearsarge West Shore Solar LLCPortsmouth, RI9 GWhNov 2022Dec 2024 Solar
Kearsarge WesterlyKearsarge Westerly LLCWesterly, RI7 GWhNov 2020Dec 2024 Solar
Kearsarge William WayKearsarge William Way LLCBellingham, MA7 GWhNov 2021Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.7 TWh2,075
#8Tennessee Valley Authority160.6 TWh204
#10Florida Power & Light Co.148.9 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.0 TWh565
#14ISO New England104.0 TWh1,577
#16Bonneville Power Administration79.9 TWh163
#17Duke Energy Progress East64.4 TWh559
#18Salt River Project Agricultural Improvement and Power District60.5 TWh48
#19PacifiCorp East59.9 TWh216