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 1,101 to 1,200 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
A Street 1Captona A Street 1 Johnston LLCJohnston, RI2 GWhNov 2018Dec 2025 Solar
CanalCanal Generating LLCSandwich, MA546 GWhMay 1968May 2026 Residual Fuel Oil : 55.3% Natural Gas : 34.6% Distillate Fuel Oil : 10.1%
Camelot Wind LLCCamelot Wind LLCPlymouth, MA2 GWhSep 2012Dec 2024 Wind
Fore River Generating StationCalpine Fore River Energy Center, LLCNorth Weymouth, MA3 TWhJul 2003May 2026 Natural Gas : 92.7% Distillate Fuel Oil : 7.3%
Lakeville SolarC2 MA Lakeville, LLCLakeville, MA3 GWhNov 2018Dec 2025 Solar
BWC Wareham RiverBWC Wareham River, LLCWareham, MA2 GWhNov 2018Dec 2025 Solar
BWC Swan Pond River CSGBWC Swan Pond River, LLCRehoboth, MA3 GWhNov 2015Dec 2025 Solar
BWC Pocasset RiverBWC Pocasset River, LLCWareham, MA2 GWhNov 2018Dec 2025 Solar
BWC Origination 8 LLC Sturbridge 2BWC Origination 8 LLC Sturbridge 2 LLCSturbridge, MA1 GWhAug 2017Dec 2025 Solar
BWC Origination 8 LLC Sturbridge 1BWC Origination 8 LLC Sturbridge 1 LLCSturbridge, MA1 GWhJul 2017Dec 2025 Solar
New Bedford (MA) PlymouthBWC Origination 4, LLCPlymouth, MA7 GWhJun 2014Dec 2025 Solar
BWC Origination 19BWC Origination 19 LLCHopedale, MA2 GWhJul 2017Dec 2025 Solar
BWC Origination 18BWC Origination 18, LLCMattapoisett, MA7 GWhNov 2018Dec 2025 Solar
BWC Mystic RiverBWC Mystic River LLCMendon, MA2 GWhJun 2017Dec 2025 Solar
BWC Harlow BrookBWC Harlow Brook, LLCWareham, MA2 GWhNov 2018Dec 2025 Solar
Westport B Community Solar GardenBWC Hamilton Brook LLCWestport, MA8 GWhOct 2018Dec 2025 Solar
BWC Gibbs BrookBWC Gibbs Brook, LLCWareham, MA7 GWhNov 2018Dec 2025 Solar
WilbrahamBWC East Brook, LLCWilbraham, MA6 GWhNov 2020Dec 2025 Solar
Adirondack A+B Community Solar GardenBWC Connecticut River LLCWestport, MA8 GWhNov 2018Dec 2024 Solar
Dover (MA)BWC Buckmaster Pond LLCDover, MA2 GWhJul 2017Dec 2024 Solar
MendonBWC Box Pond LLCMendon, MA4 GWhNov 2017Dec 2024 Solar
Westport Community Solar GardenBWC Bass River LLCWestport, MA4 GWhJun 2017Dec 2024 Solar
Bullock Road Solar 1Bullock Road Solar 1, LLCFreetown, MA4 GWhJun 2018Dec 2025 Solar
Bucksport Generation LLCBucksport Generation LLCBucksport, ME29 GWhJun 1965May 2026 Natural Gas : 57.8% Distillate Fuel Oil : 42.2%
West BuxtonBrookfield White Pine Hydro LLCBuxton, ME21 GWhDec 1903Dec 2025 Water
Charles E MontyBrookfield White Pine Hydro LLCLewiston, ME114 GWhDec 1989Dec 2025 Water
Aziscohos Hydroelectric ProjectBrookfield White Pine Hydro LLCWilson Mills, ME30 GWhMay 1988Dec 2025 Water
Bonny EagleBrookfield White Pine Hydro LLCHollis, ME31 GWhDec 1909Dec 2025 Water
Wyman HydroBrookfield White Pine Hydro LLCBingham, ME295 GWhDec 1929Dec 2025 Water
Brunswick HydroBrookfield White Pine Hydro LLCBrunswick, ME70 GWhFeb 1982Dec 2025 Water
Cataract HydroBrookfield White Pine Hydro LLCSaco, ME23 GWhDec 1936Dec 2025 Water
Williams HydroBrookfield White Pine Hydro LLCSolon, ME64 GWhDec 1938Dec 2025 Water
Weston HydroBrookfield White Pine Hydro LLCSkowhegan, ME57 GWhDec 1919Dec 2025 Water
SkeltonBrookfield White Pine Hydro LLCDayton, ME77 GWhDec 1947Dec 2025 Water
ShawmutBrookfield White Pine Hydro LLCShawmut, ME23 GWhDec 1912Dec 2025 Water
North GorhamBrookfield White Pine Hydro LLCGorham, ME6 GWhDec 1924Dec 2025 Water
HiramBrookfield White Pine Hydro LLCHiram, ME31 GWhDec 1916Dec 2025 Water
Harris HydroBrookfield White Pine Hydro LLCWest Forks, ME151 GWhDec 1953Dec 2025 Water
Deer RipsBrookfield White Pine Hydro LLCAuburn, ME51 GWhDec 1902Dec 2025 Water
Gulf IslandBrookfield White Pine Hydro LLCLewiston, ME115 GWhDec 1925Dec 2025 Water
Rumford Falls Hydro FacilityBrookfield Power New EnglandRumford, ME212 GWhDec 1917Dec 2025 Water
Stillwater BBrookfield Black Bear Hydro, LLCOld Town, ME9 GWhAug 2013Dec 2025 Water
Orono Hydro StationBrookfield Black Bear Hydro, LLCOrono, ME6 GWhDec 2008Dec 2025 Water
Medway HydroBrookfield Black Bear Hydro, LLCMedway, ME23 GWhDec 1922Dec 2025 Water
Orono BBrookfield Black Bear Hydro, LLCOrono, ME17 GWhOct 2013Dec 2025 Water
Ellsworth Hydro StationBrookfield Black Bear Hydro, LLCEllsworth, ME18 GWhJun 1924Dec 2025 Water
West Enfield HydroBrookfield Black Bear Hydro, LLCWest Enfield, ME70 GWhMar 1988Dec 2025 Water
Milford Hydro StationBrookfield Black Bear Hydro, LLCMilford, ME36 GWhJun 1941Dec 2025 Water
Stillwater Hydro StationBrookfield Black Bear Hydro, LLCStillwater, ME6 GWhDec 1912Dec 2025 Water
Brook Street Solar 1 CSGBrook Street Solar 1, LLCPlympton, MA3 GWhJul 2017Dec 2025 Solar
Brockelman Road Solar 2Brockelman Road Solar 2, LLCLancaster, MA2 GWhJul 2021Dec 2025 Solar
Bridgewater Power LPBridgewater Power Co LPBridgewater, NH103 GWhJul 1987Dec 2025 Wood/Wood Waste Solids : 99.8%
Bridgeport Fuel Cell, LLCBridgeport Fuel Cell, LLCBridgeport, CT90 GWhNov 2013Dec 2025 Natural Gas
Bridgeport Energy ProjectBridgeport Energy LLCBridgeport, CT3 TWhMay 1998May 2026 Natural Gas
Penacook Upper Falls HydroBriar-Hydro AssociatesPenacook, NH11 GWhNov 1986Dec 2025 Water
Penacook Lower FallsBriar-Hydro AssociatesBoscawen, NH16 GWhJul 1983Dec 2025 Water
Rolfe Canal HydroBriar-Hydro AssociatesPenacook, NH16 GWhNov 1987Dec 2025 Water
Breckenridge SolarBreckenridge Street Solar 1, LLCPalmer, MA7 GWhOct 2020Dec 2024 Solar
Brassua Hydroelectric ProjectBrassua Hydroelectric LPRockwood, ME13 GWhAug 1989Aug 2025 Water
Bradford SolarBradford Solar, LLCHaverhill, MA8 GWhMar 2017Dec 2024 Solar
Boston Medical Center CHP PlantBoston Medical CenterBoston, MA14 GWhMar 2017Dec 2025 Natural Gas
Boott HydropowerBoott Hydro, LLC - HybridLowell, MA61 GWhSep 1985Dec 2025 Water
Boltonville Hydro AssociatesBoltonville Hydro AssociatesBoltonville, VT2 GWhJun 1984Dec 2025 Water
Connecticut CollegeBloom EnergyNew London, CT10 GWhAug 2019Dec 2025 Natural Gas
One PatriotBloom EnergyFoxborough, MA17 GWhNov 2019Dec 2025 Natural Gas
CoreSite - SomervilleBloom EnergySomerville, MA28 GWhAug 2020Dec 2025 Natural Gas
Yale New Haven - New LondonBloom EnergyNew London, CT14 GWhAug 2022Dec 2025 Natural Gas
Equinix - BillericaBloom EnergyBillerica, MA14 GWhAug 2021Dec 2025 Natural Gas
Medtronic - New HavenBloom EnergyNorth Haven, CT18 GWhSep 2020Dec 2025 Natural Gas
Medtronic - New Haven 2Bloom EnergyNorth Haven, CT17 GWhSep 2020Dec 2025 Natural Gas
Blodgett Solar CSGBlodgett Street Solar 1, LLCTyngsboro, MA10 GWhJul 2021Dec 2024 Solar
Sunpin BlandfordBlandford Sun, LLCSouthwick, MA6 GWhMay 2020Dec 2025 Solar
Blackstone/TupperwareBlackstone Hydro Inc.North Smithfield, RI2 GWhDec 1980May 2026 Water
Blacksmith Road Solar 1Blacksmith Road Solar 1, LLCFalmouth, MA9 GWhNov 2021Dec 2025 Solar
Bird Machine Solar FarmBird Machine Solar Farm, LLCSouth Walpole, MA6 GWhJul 2017Dec 2025 Solar
Berwick Hubbard Solar 1Berwick Hubbard Solar 1, LLCBerwick, ME6 GWhNov 2024Dec 2025 Solar
Burgess BioPowerBerlin Station, LLCBerlin, NH390 GWhOct 2013Dec 2025 Wood/Wood Waste Solids
Berkshire PowerBerkshire Power Co LLCAgawam, MA810 GWhAug 1999Dec 2025 Natural Gas
ANP Bellingham Energy ProjectBellingham Power Generation LLCBellingham, MA3 TWhOct 2002May 2026 Natural Gas
Belchertown Renewables Community SolarBelchertown Renewables, LLCBelchertown, MA6 GWhFeb 2018Dec 2025 Solar
Palmyra PV - BD Solar Palmyra LLCBD Solar Palmyra LLCPalmyra, ME8 GWhMay 2022Dec 2025 Solar
Oxford PV - BD Solar Oxford LLCBD Solar Oxford LLCOxford, ME13 GWhMay 2021Dec 2025 Solar
BD Solar Ellsworth LLCBD Solar Hancock North LLCAugusta, ME9 GWhMay 2022Dec 2025 Solar
BD Solar Hancock LLCBD Solar Hancock LLCAugusta, ME11 GWhMay 2022Dec 2025 Solar
Fairfield PV - BD Solar Fairfield LLCBD Solar Fairfield LLCFairfield, ME9 GWhMay 2021Dec 2025 Solar
Augusta PV - BD Solar Augusta LLCBD Solar Augusta LLCAugusta, ME9 GWhMay 2021Dec 2025 Solar
Winslow PV - BD Solar 2 LLCBD Solar 2 LLCWinslow, ME10 GWhJun 2022Dec 2025 Solar
Milo PV - BD Solar 1 LLCBD Solar 1 LLCMilo, ME25 GWhMay 2021Dec 2025 Solar
Bashaw Solar CSG 1, LLCBashaw Solar 1, LLCNewbury, MA3 GWhMar 2017Dec 2025 Solar
West CharlestonBarton Village, IncWest Charleston, VT6 GWhJun 1931Jul 2025 Water
Barton Solar FarmBarton Solar, LLCBarton, VT2 GWhOct 2014Dec 2025 Solar
Cenergy - PulkBAP Grounded 2 LLCSabattus, ME8 GWhNov 2024Dec 2025 Solar
Deerfield Wind LLCAvangrid Power LLCSearsburg, VT92 GWhNov 2017May 2026 Wind
New England Wind LLCAvangrid Power LLCFlorida, MA73 GWhNov 2012May 2026 Wind
Groton Wind LLCAvangrid Power LLCGroton, NH101 GWhNov 2012May 2026 Wind
Lempster Wind LLCAvangrid Power LLCLempster, NH62 GWhNov 2008May 2026 Wind
Athens EnergyAthens Energy, LLCAthens, ME56 GWhSep 2016Dec 2025 Wood/Wood Waste Solids
Ashby Solar, LLC CSGAshby Solar, LLCFitchburg, MA3 GWhJun 2018Dec 2025 Solar
ASD Wallum MA Solar LLC(CSG)ASD Wallum MA Solar LLCDouglas, MA9 GWhDec 2021Dec 2024 Solar
Three Rivers Solar LLCASD Three Rivers Road MA Solar LLCWilbraham, MA154 MWhOct 2024Dec 2024 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