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 Jul 2025
Annual Generation 103.8 TWh
Power Plants1,561
Utilities814
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 | 57.3% Nuclear | 24.5% Water | 6% Other Fuel | 4.5% Wind | 3.7% Solar | 1.4% Coal | 0.3%

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

500k500k400k400k300k300k200k200k100k100k0020232023Jul '23Jul '2320242024Jul '24Jul '2420252025Jul '25Jul '25
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List of All ISO New England Power Plants

Displaying Results 401 to 500 of 1,270
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Watertown Solar One, LLCDG Connecticut III, LLCWatertown, CT3 GWhMay 2021Dec 2024 Solar
Fairhaven C CSGMN8 Energy LLCFairhaven, MA3 GWhApr 2017Dec 2024 Solar
DG Tufts Knoll LLC CSGDG Tufts Knoll, LLCNorth Grafton, MA3 GWhJul 2017Dec 2024 Solar
Technology Drive SolarConsolidated Edison Development Inc.Brattleboro, VT3 GWhAug 2014Dec 2024 Solar
Cycz Solar Project CSG HybridAES Distributed EnergySpencer, MA3 GWhMay 2020Dec 2024 Solar
Harbor Road Solar 1Harbor Road Solar 1, LLCCheshire, MA3 GWhNov 2021Dec 2024 Solar
TaftvilleFirstLight Power Resources Services LLCTaftville, CT3 GWhDec 1905Dec 2024 Water
Hatfield Renewables Community SolarHatfield Renewables, LLCHatfield, MA3 GWhAug 2017Dec 2024 Solar
Sydney SolarEcos Energy LLCHampton, CT3 GWhMay 2020Dec 2024 Solar
KS Solar Six LLCKearsarge Solar LLCHubbardston, MA3 GWhNov 2013Dec 2024 Solar
Greenfield Solar PVNSTAR Electric CompanyGreenfield, MA3 GWhDec 2018Dec 2024 Solar
ER Salvage YardGreenbacker Renewable Energy CorporationMorrisville, VT3 GWhOct 2021Dec 2024 Solar
Hadley 2 Solar, LLC CSGHadley 2 Solar, LLCHadley, MA3 GWhNov 2016Dec 2024 Solar
Lisbon Street SolarNextGrid Cliffrose, LLCLewiston, ME3 GWhMar 2022Dec 2024 Solar
Clarendon Solar FarmClarendon Solar Farm, LLCNorth Clarendon, VT3 GWhJun 2014Dec 2024 Solar
Charlotte Solar LLC VTAltus Power America Management, LLCCharlotte, VT3 GWhJun 2014Dec 2024 Solar
Lawrence BrookGreenbacker Renewable Energy CorporationMorristown, VT3 GWhNov 2020Dec 2024 Solar
Williamsburg Solar LLC VNEM CSGTesla Inc.Haydenville, MA3 GWhJan 2016Dec 2024 Solar
LeominsterSyncarpha Massachusetts, LLCLeominster, MA3 GWhApr 2015Dec 2024 Solar
Hurteau Solar Project HybridAES Distributed EnergyUxbridge, MA3 GWhFeb 2020Dec 2024 Solar
CMEEC - BozrahTesla Inc.Bozrah, CT3 GWhNov 2016Dec 2024 Solar
Ashby Solar, LLC CSGAshby Solar, LLCFitchburg, MA3 GWhJun 2018Dec 2024 Solar
West Tisbury Generating FacilityVineyard Reliability LLCWest Tisbury, MA3 GWhDec 1974Dec 2024 Distillate Fuel Oil
Great Falls (VT)The Town of Lyndon Electric DepartmentLyndon, VT3 GWhJul 1915Dec 2024 Water
Sutton Solar CSGSutton Solar, LLCSutton, MA3 GWhOct 2016Dec 2024 Solar
Rehoboth SolarCitizens Enterprises CorporationRehoboth, MA3 GWhNov 2013Dec 2024 Solar
Stafford St 2 Community SolarStafford St Solar 2, LLCLecister, MA3 GWhApr 2018Dec 2023 Solar
Kearsarge GillKearsarge Gill LLCGill, MA3 GWhDec 2017Dec 2024 Solar
Gardner Solar 1Gardner Solar 1, LLCGardner, MA3 GWhApr 2014Dec 2024 Solar
Hinsdale Solar PVNSTAR Electric CompanyHinsdale, MA3 GWhDec 2018Dec 2024 Solar
Chicopee River SolarCitizens Enterprises CorporationSpringfield, MA3 GWhDec 2014Dec 2024 Solar
Kearsarge East ProvidenceKearsarge East Providence LLCEast Providence, RI3 GWhNov 2020Dec 2024 Solar
OSG Solar 1 LLCNavisun LLCOrange, MA3 GWhJun 2012Dec 2023 Solar
Shirley WaterAltus Power America Management, LLCShirley, MA3 GWhJul 2016Dec 2024 Solar
Kearsarge 100 Sohier RdKearsarge Beverly LLCBeverly, MA3 GWhApr 2023Dec 2023 Solar
Syncarpha Hancock I CSGSyncarpha Hancock I, LLCHancock, MA3 GWhOct 2017Dec 2024 Solar
Southampton Solar PVNSTAR Electric CompanySouthampton, MA3 GWhJan 2019Dec 2024 Solar
Granby LFGIndustrial Power Services Corp.Granby, MA3 GWhAug 2001Dec 2024 Landfill Gas
Seaboard Charlton, LLCNavisun LLCCharlton, MA3 GWhNov 2020Dec 2023 Solar
GSPP Gilman, LLCGreen Street Power PartnersLunenburg, VT3 GWhAug 2018Dec 2024 Solar
Sampson Road Community SolarSampson Road Solar, LLCCharlton, MA3 GWhNov 2017Dec 2024 Solar
Stafford MS Ground Mount Community SolarTown of Stafford - (CT)Stafford, CT3 GWhJun 2016Dec 2024 Solar
Depot Hill Solar CSGCCC Solar Holdings LLCCharlton, MA3 GWhSep 2016Dec 2024 Solar
Hadley 3 Solar (South)Hadley 3 Solar, LLC (South)Hadley, MA3 GWhNov 2019Dec 2024 Solar
Wareham MA 1 Community SolarNavisun LLCWareham, MA3 GWhAug 2016Dec 2023 Solar
Monument ValleyLSE Lepus LLCGreat Barrington, MA3 GWhDec 2021Dec 2024 Solar
Torrington Solar One, LLCDG Connecticut III, LLCTorrington, CT3 GWhFeb 2021Dec 2024 Solar
BeverlyIntegrys MA Solar, LLCBeverly, MA3 GWhApr 2014Dec 2024 Solar
ER Center Road Solar, LLCGreenbacker Renewable Energy CorporationHardwick, VT3 GWhApr 2022Dec 2024 Solar
CES Sterling LLCSunEdison LLCSterling, MA3 GWhJan 2013Dec 2024 Solar
CED FosterConsolidated Edison Development Inc.Foster, RI3 GWhNov 2017Apr 2025 Solar
Ashby Duffy CSG Solar FarmLSE Cassiopeia LLCAshby, MA3 GWhNov 2017Dec 2024 Solar
Partridge Hill Solar HybridAES Distributed EnergyCharlton, MA3 GWhJun 2020Dec 2024 Solar
CED Westfield Solar, LLCConsolidated Edison Development Inc.Westfield, MA3 GWhJul 2016Dec 2024 Solar
Leominster (MA)-South Street-R&DSouth Street Solar, LLCTewksbury, MA3 GWhNov 2013Dec 2024 Solar
Bashaw Solar CSG 1, LLCBashaw Solar 1, LLCNewbury, MA3 GWhMar 2017Dec 2024 Solar
Westtown CSGAltus Power America Management, LLCWesttown, NY3 GWhApr 2019Dec 2023 Solar
Washburn Road SolarREA Investments, LLCFreetown, MA3 GWhNov 2018Dec 2024 Solar
Savoy Solar PVNSTAR Electric CompanySavoy, MA3 GWhJan 2019Dec 2024 Solar
GSPP Devens, LLCGreen Street Power PartnersAyer, MA3 GWhDec 2018Dec 2024 Solar
UMass PV Lot 22Consolidated Edison Development Inc.Amherst, MA3 GWhAug 2022Dec 2024 Solar
Pumpkin HillKEI (Maine) Power Management (II) LLCLowell, ME3 GWhFeb 1987Dec 2024 Water
Syncarpha Hancock II CSGSyncarpha Hancock II, LLCHancock, MA3 GWhOct 2017Dec 2024 Solar
Griffin Road Solar, LLC CSGGriffin Road Solar, LLCCharlton, MA3 GWhFeb 2018Dec 2024 Solar
GSPP 126 Little Bow Rd N, LLCGreen Street Power PartnersGouverneur, NY3 GWhNov 2023Dec 2024 Solar
Tenth StreetCity of Norwich - (CT)Norwich, CT3 GWhApr 1967Sep 2024 Water
Spring Street Solar 1 CSGSpring Street Solar 1, LLCCarver, MA3 GWhFeb 2017Dec 2024 Solar
Kearsarge GBKearsarge GB LLCGreat Barrington, MA3 GWhJul 2018Dec 2024 Solar
BrimfieldWEB Brimfield Solar LLCBrimfield, MA3 GWhNov 2021Dec 2024 Solar
Scituate PVAES Distributed EnergyScituate, MA3 GWhSep 2013Dec 2024 Solar
Boltonville Hydro AssociatesBoltonville Hydro AssociatesBoltonville, VT3 GWhJun 1984Dec 2024 Water
Somersworth Lower Great DamGreen Mountain Power CorpSomersworth, NH3 GWhJun 1985Jun 2024 Water
North Kingstown Solar LLCNorth Kingstown Solar LLCNorth Kingstown, RI3 GWhAug 2022Dec 2024 Solar
WaterboroMadison Energy Investments LLCEast Waterboro, ME3 GWhJun 2023Dec 2024 Solar
Onyx - Pembroke Landfill SolarOnyx Asset Services GroupPembroke, MA3 GWhNov 2017Dec 2024 Solar
Becton CanaanDG Northeast 1, LLCNorth Canaan, CT3 GWhFeb 2018Dec 2024 Solar
Merrimack Solar Farm, LLCMerrimack Solar FarmMerrimack, NH3 GWhDec 2018Dec 2023 Solar
Messalonskee 5Messalonskee Stream Hydro LLCWaterville, ME3 GWhDec 1934Dec 2024 Water
Kearsarge Montague BD(CSG)Kearsarge Montague BD LLCMontague, MA3 GWhOct 2021Dec 2023 Solar
Barrow SolarEcos Energy LLCSomers, CT3 GWhMay 2021Dec 2024 Solar
Cold River Road SolarAEP Onsite Partners, LLCNorth Clarendon, VT3 GWhNov 2016Dec 2023 Solar
Cronin Road Solar 1, LLC CSG HybridAES Distributed EnergyWarren, MA3 GWhMay 2020Dec 2024 Solar
CP East Hampton I & II SolarNJR Clean Energy Ventures CorporationEast Hampton, CT3 GWhJan 2021Dec 2024 Solar
Rail TrailAltus Power America Management, LLCGreat Barrington, MA3 GWhApr 2016Dec 2024 Solar
Monson Solar, LLCMonson Solar, LLCMonson, MA3 GWhJul 2017Dec 2024 Solar
Powder HillLSE Delphinus LLCEnfield, CT3 GWhNov 2020Dec 2023 Solar
Town of Needham VNEM CSGTesla Inc.Needham, MA3 GWhJan 2016Dec 2024 Solar
Ludlow LandfillCleanCapital HoldingsLudlow, MA3 GWhJul 2013Dec 2024 Solar
Padelford SolarConsolidated Edison Solutions Inc.Berkley, MA3 GWhNov 2012Dec 2024 Solar
Dartmouth II SolarConsolidated Edison Development Inc.Dartmouth, MA3 GWhMay 2012Dec 2024 Solar
Palombo Solar, LLC CSG38 Degrees North, LLCUxbridge, MA3 GWhNov 2017Dec 2024 Solar
Upton Community SolarUpton Solar, LLCUpton, MA3 GWhAug 2017Dec 2024 Solar
East Bridgewater SolarAltus Power America Management, LLCEast Bridgewater, MA3 GWhOct 2017Dec 2024 Solar
Kearsarge UxbridgeKearsarge Uxbridge LLCUxbridge, MA3 GWhAug 2018Dec 2024 Solar
Downing Parkway SolarDowning Parkway Solar LLCPittsfield, MA3 GWhJun 2015Dec 2024 Solar
Ward Solar 1, LLCREA Investments, LLCCarver, MA3 GWhJan 2019Dec 2024 Solar
Southern Sky Renew Energy Berkley LLCSouthern Sky Renewable Energy Berkley, LLCBerkley, MA3 GWhMay 2014Dec 2024 Solar
Northbridge SolarConsolidated Edison Development Inc.South Grafton, MA3 GWhJul 2013Dec 2024 Solar
Hunt Farm SolarAltus Power America Management, LLCOrange, MA3 GWhAug 2013Dec 2024 Solar
Charlemont ACharlemont MA, LLCCharlemont, MA3 GWhAug 2021Dec 2023 Solar

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator189.7 TWh2,051
#8Tennessee Valley Authority158.8 TWh204
#10Florida Power & Light Co.149.0 TWh187
#12New York Independent System Operator130.8 TWh1,191
#13Duke Energy Carolinas111.8 TWh565
#14ISO New England103.8 TWh1,561
#16Bonneville Power Administration80.6 TWh163
#17Duke Energy Progress East64.9 TWh558
#18Salt River Project Agricultural Improvement and Power District59.0 TWh48
#19PacifiCorp East58.1 TWh215