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 Dec 2025
Annual Generation 105.8 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 | 25.9% Water | 5% Other Fuel | 4.4% Wind | 4% Solar | 1.5% Coal | 0.3%

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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 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Wells (ME)Nautilus Solar SolutionsWells, ME6 GWhJun 2022Dec 2024 Solar
BWC Gibbs BrookBWC Gibbs Brook, LLCWareham, MA6 GWhNov 2018Dec 2024 Solar
Fitchburg RenewablesFitchburg Renewables, LLCFitchburg, MA6 GWhFeb 2020Dec 2024 Solar
Quinebaug Lower ProjectQuinebaug Associates LLCBrooklyn, CT6 GWhMar 1990Dec 2024 Water
ENGIE 2019 ProjectCo-MA1, LLCENGIE 2019 ProjectCo MA-1, LLCAgawam, MA6 GWhFeb 2021Dec 2024 Solar
CantonCaptona Canton LLCCanton, MA6 GWhJul 2012Dec 2024 Solar
DwightCentral Rivers Power MA, LLCChicopee, MA6 GWhDec 1919Dec 2024 Water
True NorthCD US Solar MT1 LLCSalisbury, MA6 GWhJul 2012Dec 2024 Solar
CaribouAltus Power America Management, LLCCaribou, ME6 GWhJul 2023Dec 2024 Solar
Deerfield CSG SolarMN8 Energy LLCDeerfield, MA6 GWhNov 2017Dec 2024 Solar
Oxford SolarCitizens Enterprises CorporationOxford, MA6 GWhJan 2020Dec 2024 Solar
Indian OrchardCentral Rivers Power MA, LLCIndian Orchard, MA6 GWhDec 1927Dec 2024 Water
Mass Midstate Solar 3Evergreen Wind, LLCWarren, MA6 GWhApr 2014Dec 2024 Solar
Palmer LandfillSyncarpha Bondsville, LLCPalmer, MA6 GWhNov 2016Dec 2024 Solar
Dresser Hill CSGDresser Hill Solar, LLCSouthbridge, MA6 GWhDec 2020Dec 2024 Solar
GMP Solar - WillistonGreen Mountain Power CorpWilliston, VT6 GWhOct 2016Sep 2025 Solar
Nutting Ridge Solar, LLCREA Investments, LLCOtisfield, ME6 GWhMay 2023Dec 2024 Solar
Syncarpha FreetownMarie's Way Solar I, LLCFreetown, MA6 GWhOct 2016Dec 2024 Solar
Adams Grove SolarSoCore Energy LLCAdams, MA6 GWhAug 2022Dec 2024 Solar
Granby Solar, LLC CSGGranby Solar, LLCGranby, MA6 GWhJun 2021Dec 2024 Solar
GSPP Terrawatt Westfield LLC CSGGreen Street Power PartnersWestfield, MA6 GWhJan 2019Dec 2024 Solar
WED Plainfield III, LLCWED Plainfield III, LLCJohnston, RI6 GWhDec 2018Dec 2024 Wind
Market Street Gardiner Solar, LLCREA Investments, LLCGardiner, ME6 GWhJun 2022Dec 2024 Solar
LoringAltus Power America Management, LLCLimestone, ME6 GWhApr 2023Dec 2024 Solar
GlenGreen Mountain Power CorpRutland, VT6 GWhJul 1920Dec 2024 Water
Founders Homestead Farms SolarAES Distributed EnergyPortsmouth, RI6 GWhNov 2019Sep 2025 Solar
Chester Solar FarmKearsarge Solar LLCChester, MA6 GWhMay 2014Dec 2024 Solar
WED Plainfield, LLCWED Plainfield, LLCJohnston, RI6 GWhDec 2018Dec 2024 Wind
Church Hill Road Augusta Solar, LLCREA Investments, LLCAugusta, ME6 GWhJan 2022Dec 2024 Solar
WEB BrookfieldWEB Brookfield Solar LLCBrookfield, MA6 GWhNov 2021Dec 2024 Solar
Acushnet AD MakepeaceCleanCapital HoldingsWareham, MA6 GWhJun 2012Dec 2024 Solar
Richmond NMCAAES Distributed EnergyWood River Junction, RI6 GWhNov 2018Sep 2025 Solar
RandolphAltus Power America Management, LLCRandolph, MA6 GWhOct 2017Dec 2024 Solar
GenConn Middletown LLCGenConn Middletown LLCMiddletown, CT6 GWhMay 2011Dec 2024 Kerosene : 57.4% Natural Gas : 42.6%
Stevens Mills DamEagle Creek Renewable Energy, LLCFranklin, NH6 GWhMay 1982Dec 2024 Water
Hampden Solar PVNSTAR Electric CompanyHampden, MA6 GWhOct 2019Dec 2024 Solar
Springfield Solar PVNSTAR Electric CompanySpringfield, MA6 GWhDec 2018Dec 2024 Solar
Bird Machine Solar FarmBird Machine Solar Farm, LLCSouth Walpole, MA6 GWhJul 2017Dec 2024 Solar
Freetown SolarMass Solar, LLCFreetown, MA6 GWhFeb 2015Dec 2024 Solar
PalmerAES Distributed EnergyPalmer, MA6 GWhSep 2019Dec 2024 Solar
BWC Rams Horn Channel LLCNavisun LLCBeverly, MA6 GWhNov 2020Dec 2024 Solar
Montague Site 36-GrosolarNSTAR Electric CompanyMillers Falls, MA6 GWhSep 2018Sep 2025 Solar
Webb Road SolarNextGrid Mastic, LLCWaterville, ME6 GWhAug 2022Dec 2024 Solar
Blackhorse Farm Solar, LLC CSGAES Distributed EnergyWarren, RI6 GWhNov 2020Nov 2024 Solar
WED Plainfield II, LLCWED Plainfield II, LLCJohnston, RI6 GWhDec 2018Dec 2024 Wind
GSPP Boxborough Littleton (MA)GSPP Boxborough Littleton, LLCBoxborough, MA6 GWhDec 2018Dec 2024 Solar
Kearsarge Ludlow LLCKearsarge Ludlow LLCLudlow, MA6 GWhNov 2020Dec 2024 Solar
Kearsarge SKSC1 LLCKearsarge SKSC1 LLCSouth Kingstown, RI6 GWhSep 2018Dec 2024 Solar
MM Taunton EnergyMM Taunton Energy LLCTaunton, MA6 GWhAug 1997Dec 2024 Landfill Gas
Orono Hydro StationBrookfield Black Bear Hydro, LLCOrono, ME6 GWhDec 2008Dec 2024 Water
Carver FallsGreen Mountain Power CorpHampton, NY6 GWhJan 1922Dec 2024 Water
ME - EDFR - Phase I - BristolOverlook Solar Partners, LLCBristol, ME6 GWhNov 2023Nov 2024 Solar
Saratoga Solar III, LLCGreen Street Power PartnersMiddle Grove, NY6 GWhNov 2023Dec 2024 Solar
GD Johnson Scituate I, LLCGD Johnson Scituate I, LLCCranston, RI6 GWhNov 2021Dec 2024 Solar
Harwich LandfillClean Focus Yield, LLCHarwich, MA6 GWhJul 2014Dec 2024 Solar
Partridgeville Hybrid CSGPartridgeville Road Solar 1, LLCAthol, MA6 GWhDec 2019Dec 2024 Solar
Kearsarge SKSC2 LLCKearsarge SKSC2 LLCSouth Kingstown, RI6 GWhSep 2018Dec 2024 Solar
Marston Mills SolarSoCore Energy LLCMarstons Mills, MA6 GWhNov 2021Dec 2024 Solar
Hatfield Solar PVNSTAR Electric CompanyHatfield, MA6 GWhNov 2018Dec 2024 Solar
West Brookfield Solar - Gilbertsville RdNautilus Solar SolutionsWest Brookfield, MA6 GWhMay 2017Dec 2024 Solar
EDF LancasterCleanCapital HoldingsLancaster, MA6 GWhJun 2014Dec 2024 Solar
UMASSConsolidated Edison Development Inc.Amherst, MA6 GWhSep 2016Dec 2024 Solar
Westport Stone & Sand Solar (CSG)AES Clean EnergyWestport, MA6 GWhFeb 2024Dec 2024 Solar
299 Farm to Market Rd Hybrid(CSG)299F2M WHAM8 Solar, LLCWareham, MA6 GWhNov 2021Dec 2024 Solar
BD Solar Ellsworth LLCBD Solar Hancock North LLCAugusta, ME6 GWhMay 2022Dec 2024 Solar
Washington WS01Nautilus Solar SolutionsWashington, ME6 GWhMay 2022Dec 2024 Solar
Oak Street SolarCitizens Enterprises CorporationSpringfield, MA6 GWhNov 2019Dec 2024 Solar
Leicester One MA Solar LLCCVI CleanCapital Solar 1 LLCLeicester, MA6 GWhDec 2014Dec 2024 Solar
Dept of Corrections NCCI WindDept of Corrections NCCI WindGardner, MA6 GWhOct 2013Sep 2025 Wind
Milton HydroSFR Hydro CorMilton, NH6 GWhDec 1913Dec 2024 Water
Burlington Solar 1DG Connecticut III, LLCBurlington, CT6 GWhJan 2022Dec 2024 Solar
FarmingtonMadison Energy Investments LLCFarmington, ME6 GWhNov 2023Dec 2024 Solar
Williams RdAES Distributed EnergyRansomville, NY6 GWhAug 2021Dec 2024 Solar
HudsonCaptona Hudson LLCHudson, MA6 GWhApr 2017Dec 2024 Solar
Enfield Solar OneEnfield Solar One, LLCHartford, CT5 GWhMar 2024Dec 2024 Solar
ChemicalCity of Holyoke Gas and Electric Dept.Holyoke, MA5 GWhDec 1934Dec 2024 Water
Augusta Road Bowdoin Solar, LLCREA Investments, LLCBowdoin, ME5 GWhJan 2022Dec 2024 Solar
NationwideNationwide Solar Energy LLCLancaster, MA5 GWhMay 2021Dec 2024 Solar
Lenox RenewablesLenox Renewables, LLCCanastota, NY5 GWhAug 2021Dec 2024 Solar
Corkwood Solar (CSG)NextGrid Corkwood, LLCHowland, ME5 GWhOct 2023Dec 2024 Solar
International Paper Woronoco MillEagle Creek Renewable Energy, LLCWoronoco, MA5 GWhDec 1912Dec 2024 Water
Franklin 2CD US Solar MT 2 LLCFranklin, MA5 GWhNov 2013Dec 2024 Solar
Charlton Solar I CSGCharlton Solar I, LLCCharlton, MA5 GWhNov 2014Dec 2024 Solar
Kearsarge Amesbury HybridKearsarge Amesbury LLCAmesbury, MA5 GWhNov 2019Dec 2024 Solar
Nextsun Energy LittletonGreenbacker Renewable Energy CorporationLittleton, MA5 GWhSep 2013Dec 2024 Solar
WilbrahamBWC East Brook, LLCWilbraham, MA5 GWhNov 2020Dec 2024 Solar
Brewster LandfillClean Focus Yield, LLCBrewster, MA5 GWhAug 2014Dec 2024 Solar
Barnstable LandfillClean Focus Yield, LLCMarstons Mills, MA5 GWhAug 2014Dec 2024 Solar
HooksettCentral Rivers Power NH, LLCHooksett, NH5 GWhJul 1927Dec 2024 Water
Livermore Falls CSGLivermore Falls CSG, LLCLivermore Falls, ME5 GWhApr 2022Dec 2024 Solar
Easton CSG 1 LLCEaston CSG 1 LLCEaston, ME5 GWhJan 2024Dec 2024 Solar
ME Novel Lighthouse - CarrabassettLuminace Sunbeam Development Holdings, LLCCarrabassett Valley, ME5 GWhNov 2023Dec 2024 Solar
Marshfield PVTerraform ArcadiaMarshfield, MA5 GWhNov 2013Dec 2024 Solar
Hampshire College HybridTesla Inc.Amherst, MA5 GWhApr 2017Dec 2024 Solar
Peru (MA)Sunrise on West Main Rd. LLCPeru, MA5 GWhOct 2020Dec 2024 Solar
BrockelmanIntegrys MA Solar, LLCLancaster, MA5 GWhOct 2013Dec 2024 Solar
HampdenAltus Power America Management, LLCHampden, MA5 GWhJun 2015Dec 2024 Solar
East Longmeadow Solar PVNSTAR Electric CompanyEast Longmeadow, MA5 GWhSep 2019Dec 2024 Solar
Arctaris Saddleback SolarArctaris Saddleback Solar, LLCDallas Plantation, ME5 GWhOct 2023Dec 2024 Solar
Raboth - Marion DriveMadison Energy Holdings LLCKingston, MA5 GWhFeb 2021Dec 2024 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.2 TWh2,075
#9Tennessee Valley Authority161.7 TWh204
#10Florida Power & Light Co.149.1 TWh187
#12New York Independent System Operator131.9 TWh1,211
#13Duke Energy Carolinas112.3 TWh565
#15ISO New England105.8 TWh1,577
#16Bonneville Power Administration80.6 TWh163
#17Duke Energy Progress East64.4 TWh559
#18PacifiCorp East61.1 TWh216
#19Salt River Project Agricultural Improvement and Power District59.9 TWh48