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 401 to 500 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
ER Salvage YardAltus Power America Management, LLCMorrisville, VT3 GWhOct 2021Dec 2025 Solar
Syncarpha Hancock II CSGSyncarpha Hancock II, LLCHancock, MA3 GWhOct 2017Dec 2025 Solar
Ottauquechee HydroGreen Mountain Power CorpN. Hartland, VT3 GWhMar 1983Dec 2025 Water
KS Solar Six LLCKearsarge Solar LLCHubbardston, MA3 GWhNov 2013Dec 2025 Solar
Hinsdale Solar PVNSTAR Electric CompanyHinsdale, MA3 GWhDec 2018Dec 2025 Solar
Hurteau Solar Project HybridAES Distributed EnergyUxbridge, MA3 GWhFeb 2020Dec 2025 Solar
Syncarpha Halifax Hybrid CSGSyncarpha Halifax, LLCHalifax, MA3 GWhNov 2020Dec 2025 Solar
Dudley Solar CSGDudley Solar, LLCDudley, MA3 GWhJul 2017Dec 2025 Solar
A Street 2Captona A Street 2 Johnston LLCJohnston, RI3 GWhNov 2018Dec 2025 Solar
WED Coventry 1WED Coventry One, LLCCoventry, RI3 GWhSep 2016Dec 2025 Wind
Truck StopLSE Corona Austrina LLCWest Stockridge, MA3 GWhOct 2017Dec 2024 Solar
Easthampton Landfill-City of EasthamptonCleanCapital HoldingsEasthampton, MA3 GWhMay 2012Dec 2025 Solar
Ayers Village SolarAltus Power America Management, LLCMethuen, MA3 GWhMay 2014Dec 2025 Solar
Wareham MA 1 Community SolarNavisun LLCWareham, MA3 GWhAug 2016Dec 2025 Solar
ME CDG 005ME CDG 005 LLCVeazie, ME3 GWhNov 2024Dec 2025 Solar
Curtis Hill Solar CSGCCC Solar Holdings LLCCharlton, MA3 GWhSep 2016Dec 2024 Solar
Hopkinton CSGAltus Power America Management, LLCHopkinton, MA3 GWhMar 2019Dec 2025 Solar
Shirley WaterAltus Power America Management, LLCShirley, MA3 GWhJul 2016Dec 2025 Solar
North Haven Solar OneNorth Haven Solar One, LLCNorth Haven, CT3 GWhFeb 2024Dec 2025 Solar
Chittenden County Solar PartnersChittenden County Solar Partners LLCSouth Burlington, VT3 GWhApr 2011Dec 2024 Solar
Clarendon Solar FarmClarendon Solar Farm, LLCNorth Clarendon, VT3 GWhJun 2014Dec 2025 Solar
West Davisville SolarAltus Power America Management, LLCNorth Kingstown, RI3 GWhNov 2013Dec 2025 Solar
WED Stilson SolarCleanCapital HoldingsRichmond, RI3 GWhNov 2017Dec 2025 Solar
Pumpkin HillKEI (Maine) Power Management (II) LLCLowell, ME3 GWhFeb 1987Dec 2025 Water
Savoy Solar PVNSTAR Electric CompanySavoy, MA3 GWhJan 2019Dec 2025 Solar
Kearsarge 100 Sohier RdKearsarge Beverly LLCBeverly, MA3 GWhApr 2023Dec 2025 Solar
Oak Bluffs Diesel Generating FacilityVineyard Reliability LLCOak Bluffs, MA3 GWhDec 1968Sep 2025 Distillate Fuel Oil
Bashaw Solar CSG 1, LLCBashaw Solar 1, LLCNewbury, MA3 GWhMar 2017Dec 2025 Solar
Ashby Solar, LLC CSGAshby Solar, LLCFitchburg, MA3 GWhJun 2018Dec 2025 Solar
Charlotte Solar LLC VTAltus Power America Management, LLCCharlotte, VT3 GWhJun 2014Dec 2025 Solar
Hatfield Renewables Community SolarHatfield Renewables, LLCHatfield, MA3 GWhAug 2017Dec 2025 Solar
Chicopee River SolarCitizens Enterprises CorporationSpringfield, MA3 GWhDec 2014Dec 2025 Solar
Rehoboth SolarCitizens Enterprises CorporationRehoboth, MA3 GWhNov 2013Dec 2025 Solar
Cycz Solar Project CSG HybridAES Distributed EnergySpencer, MA3 GWhMay 2020Dec 2025 Solar
CES Sterling LLCSunEdison LLCSterling, MA3 GWhJan 2013Dec 2025 Solar
Kearsarge GBKearsarge GB LLCGreat Barrington, MA3 GWhJul 2018Dec 2025 Solar
DG Tufts Knoll LLC CSGDG Tufts Knoll, LLCNorth Grafton, MA3 GWhJul 2017Dec 2025 Solar
Partridge Hill Solar HybridAES Distributed EnergyCharlton, MA3 GWhJun 2020Dec 2025 Solar
Watertown Solar One, LLCDG Connecticut III, LLCWatertown, CT3 GWhMay 2021Dec 2025 Solar
Scituate PVAES Distributed EnergyScituate, MA3 GWhSep 2013Dec 2025 Solar
ER Center Road Solar, LLCAltus Power America Management, LLCHardwick, VT3 GWhApr 2022Dec 2025 Solar
Kearsarge AcushnetKearsarge Acushnet LLCAcushnet, MA3 GWhJan 2020Dec 2025 Solar
Cabot HolyokeCity of Holyoke Gas and Elec Dept - (MA)Holyoke, MA3 GWhDec 1892Dec 2025 Water
BWC Swan Pond River CSGBWC Swan Pond River, LLCRehoboth, MA3 GWhNov 2015Dec 2025 Solar
RollinsfordGreen Mountain Power CorpRollinsford, NH3 GWhSep 1986Dec 2025 Water
Kearsarge GillKearsarge Gill LLCGill, MA3 GWhDec 2017Dec 2025 Solar
Lawrence BrookGreenbacker Renewable Energy CorporationMorristown, VT3 GWhNov 2020Dec 2025 Solar
GSPP Devens, LLCGreen Street Power PartnersAyer, MA3 GWhDec 2018Dec 2025 Solar
Sydney SolarEcos Energy LLCHampton, CT3 GWhMay 2020Dec 2025 Solar
ME CDG 004ME CDG 004 LLCBangor, ME3 GWhNov 2024Dec 2025 Solar
Randall Road Solar IIGreen Street Power PartnersBallston Spa, NY3 GWhJun 2024Dec 2025 Solar
Whitcomb Solar FarmERWR Whitcomb Farm Solar LLCEssex Junction, VT3 GWhSep 2014Dec 2025 Solar
GSPP Gilman, LLCGreen Street Power PartnersLunenburg, VT3 GWhAug 2018Dec 2025 Solar
Limerick Road Solar FarmLimerick Road Solar, LLCShelburne, VT3 GWhNov 2013Dec 2025 Solar
NaplesNaples Casco Solar 1, LLCNaples, ME3 GWhNov 2021Dec 2025 Solar
Seaboard Charlton, LLCNavisun LLCCharlton, MA3 GWhNov 2020Dec 2025 Solar
Lakeville SolarC2 MA Lakeville, LLCLakeville, MA3 GWhNov 2018Dec 2025 Solar
Ashby Duffy CSG Solar FarmLSE Cassiopeia LLCAshby, MA3 GWhNov 2017Dec 2025 Solar
Fairhaven EAgilitas Energy, Inc.Fairhaven, MA3 GWhJul 2021Dec 2025 Solar
Charlemont AAgilitas Energy, Inc.Charlemont, MA3 GWhAug 2021Dec 2025 Solar
Centaurus Solar - MALSE Centaurus LLCAshland, MA3 GWhOct 2016Dec 2025 Solar
Carver MA 1 Community SolarNavisun LLCCarver, MA3 GWhAug 2016Dec 2025 Solar
Rail TrailAltus Power America Management, LLCGreat Barrington, MA3 GWhApr 2016Dec 2025 Solar
Kearsarge Montague BD(CSG)Kearsarge Montague BD LLCMontague, MA3 GWhOct 2021Dec 2025 Solar
Sampson Road Community SolarSampson Road Solar, LLCCharlton, MA3 GWhNov 2017Dec 2025 Solar
MEVS WaterhouseMEVS LLCScarborogh, ME3 GWhNov 2024Dec 2025 Solar
OxfordCVI CleanCapital Solar 6Oxford, MA3 GWhJun 2014Dec 2025 Solar
CMEEC - BozrahTesla Inc.Bozrah, CT3 GWhNov 2016Dec 2025 Solar
Torrington Solar One, LLCDG Connecticut III, LLCTorrington, CT3 GWhFeb 2021Dec 2025 Solar
Fairhaven WindFairhaven Wind LLCFairhaven, MA3 GWhMar 2012Dec 2025 Wind
French Road SolarSoCore Energy LLCAshland, ME3 GWhNov 2024Dec 2025 Solar
Valley Sun SolarValley Sun Solar LLCGrand Isle, ME3 GWhNov 2024Dec 2025 Solar
OSG Solar 1 LLCNavisun LLCOrange, MA3 GWhJun 2012Dec 2025 Solar
Barrow SolarEcos Energy LLCSomers, CT3 GWhMay 2021Dec 2025 Solar
Stafford MS Ground Mount Community SolarTown of Stafford - (CT)Stafford, CT3 GWhJun 2016Dec 2025 Solar
Monument ValleyLSE Lepus LLCGreat Barrington, MA3 GWhDec 2021Dec 2024 Solar
CTGB Maloney and WebsterTotalEnergies Renewables USA LLCCheshire, CT3 GWhJun 2025Dec 2025 Solar
Williams College - Campus CHPPresident & Trustees of Williams CollegeWilliamstown, MA3 GWhFeb 2003Dec 2025 Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
Monson Solar, LLCMonson Solar, LLCMonson, MA3 GWhJul 2017Dec 2025 Solar
BNRG North Anson (CSG)Nautilus Solar SolutionsNorth Anson, ME3 GWhOct 2024Dec 2025 Solar
BunceLSE Indus LLCNorth Canaan, CT3 GWhMar 2022Dec 2025 Solar
Sutton Solar CSGSutton Solar, LLCSutton, MA3 GWhOct 2016Dec 2025 Solar
Downing Parkway SolarDowning Parkway Solar LLCPittsfield, MA3 GWhJun 2015Dec 2025 Solar
Northbridge SolarRWE Clean EnergySouth Grafton, MA3 GWhJul 2013Dec 2025 Solar
Griffin Road Solar, LLC CSGGriffin Road Solar, LLCCharlton, MA3 GWhFeb 2018Dec 2025 Solar
Depot Hill Solar CSGCCC Solar Holdings LLCCharlton, MA3 GWhSep 2016Dec 2025 Solar
Cold River Road SolarOnsite Partners, LLCNorth Clarendon, VT3 GWhNov 2016Dec 2025 Solar
BrimfieldWEB Brimfield Solar LLCBrimfield, MA3 GWhNov 2021Dec 2025 Solar
Douglas SolarRWE Clean EnergyDouglas, MA3 GWhNov 2012Dec 2025 Solar
DG Foxborough Elm CSGDG Foxborough Elm LLCFoxborough, MA3 GWhJul 2017Dec 2025 Solar
Hadley Solar NG, LLCNuGen Capital ManagementHadley, MA3 GWhJun 2014Dec 2025 Solar
Kearsarge UxbridgeKearsarge Uxbridge LLCUxbridge, MA3 GWhAug 2018Dec 2025 Solar
Marlborough SolarMarlborough Solar, LLCMilton, NY3 GWhFeb 2021Dec 2025 Solar
Ludlow LandfillCleanCapital HoldingsLudlow, MA3 GWhJul 2013Dec 2025 Solar
Incom Solar, LLC CSG38 Degrees North, LLCCharlton, MA3 GWhOct 2017Dec 2025 Solar
Spring Street Solar 1 CSGSpring Street Solar 1, LLCCarver, MA3 GWhFeb 2017Dec 2024 Solar
Tyngsborough SolarCitizens Enterprises CorporationTyngsborough, MA3 GWhDec 2016Dec 2025 Solar
BeverlyIntegrys MA Solar, LLCBeverly, MA3 GWhApr 2014Dec 2025 Solar
Westtown CSGAltus Power America Management, LLCWesttown, NY3 GWhApr 2019Dec 2025 Solar
Hadley 3 Solar (South)Hadley 3 Solar, LLC (South)Hadley, MA3 GWhNov 2019Dec 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