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 Nov 2025
Annual Generation 105.5 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 | 26% Water | 5% Other Fuel | 4.4% Wind | 4% Solar | 1.5% Coal | 0.4%

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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 101 to 200 of 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Axio Green LLCAltus Power America Management, LLCGreenfield Township, MA3 GWhMay 2012Dec 2024 Solar
Forbes Street SolarAltus Power America Management, LLCEast Providence, RI4 GWhNov 2013Dec 2024 Solar
Carver CSGAltus Power America Management, LLCCarver, MA4 GWhApr 2019Dec 2024 Solar
West Davisville SolarAltus Power America Management, LLCNorth Kingstown, RI3 GWhNov 2013Dec 2024 Solar
Westtown CSGAltus Power America Management, LLCWesttown, NY3 GWhApr 2019Dec 2024 Solar
Hunt Farm SolarAltus Power America Management, LLCOrange, MA3 GWhAug 2013Dec 2024 Solar
East Bridgewater SolarAltus Power America Management, LLCEast Bridgewater, MA3 GWhOct 2017Dec 2024 Solar
Hopkinton CSGAltus Power America Management, LLCHopkinton, MA3 GWhMar 2019Dec 2024 Solar
205 Sturbridge AAltus Power America Management, LLCBrimfield, MA3 GWhMay 2014Dec 2024 Solar
201 Sturbridge BAltus Power America Management, LLCBrimfield, MA2 GWhMay 2014Dec 2024 Solar
Adams Farm SolarAltus Power America Management, LLCAthol, MA3 GWhSep 2013Dec 2024 Solar
Chester Power PartnersAltus Power America Management, LLCNorth Chester, VT3 GWhOct 2014Dec 2024 Solar
Charlotte Solar LLC VTAltus Power America Management, LLCCharlotte, VT3 GWhJun 2014Dec 2024 Solar
Rail TrailAltus Power America Management, LLCGreat Barrington, MA3 GWhApr 2016Dec 2024 Solar
Rising PaperAltus Power America Management, LLCGreat Barrington, MA4 GWhApr 2016Dec 2024 Solar
HampdenAltus Power America Management, LLCHampden, MA5 GWhJun 2015Dec 2024 Solar
Little BayAltus Power America Management, LLCProvidence, RI2 GWhFeb 2014Dec 2024 Solar
Shirley WaterAltus Power America Management, LLCShirley, MA3 GWhJul 2016Dec 2024 Solar
BelchertownAltus Power America Management, LLCBelchertown, MA1 GWhNov 2015Dec 2024 Solar
Shirley LandfillAltus Power America Management, LLCShirley, MA1 GWhApr 2017Dec 2024 Solar
Meadow SolarAltus Power America Management, LLCBoston, MA4 GWhNov 2016Dec 2024 Solar
RandolphAltus Power America Management, LLCRandolph, MA6 GWhOct 2017Dec 2024 Solar
Solten Plainville 6000, LLCAltus Power America Management, LLCPlainville, MA7 GWhJul 2017Dec 2024 Solar
Green MeadowsAltus Power America Management, LLCSandwich, MA5 GWhApr 2014Dec 2024 Solar
DevensAltus Power America Management, LLCShirley, MA5 GWhMay 2014Dec 2024 Solar
Ayers Village SolarAltus Power America Management, LLCMethuen, MA3 GWhMay 2014Dec 2024 Solar
Big George PV CSGAltus Power America Management, LLCPlymouth, MA1 GWhAug 2018Dec 2024 Solar
Monson SolarAltus Power America Management, LLCMonson, MA4 GWhJun 2014Dec 2024 Solar
Sullivan SolarAltus Power America Management, LLCNew Bedford, MA2 GWhJul 2014Dec 2024 Solar
Winchendon SolarAltus Power America Management, LLCWinchendon, MA2 GWhMar 2014Dec 2024 Solar
126 Grove Solar LLCAltus Power America Management, LLCFranklin, MA2 GWhMay 2012Dec 2024 Solar
Cedarville CSGAltus Power America Management, LLCPlymouth, MA4 GWhJun 2017Dec 2024 Solar
DDR Shoppers WorldAltus Power America Management, LLCFramingham, MA2 GWhOct 2017Dec 2024 Solar
Dynamic - Enfield Hammett Road CSGAltus Power America Management, LLCEnfield, ME984 MWhAug 2024Dec 2024 Solar
Dynamic - Exeter Solar CSGAltus Power America Management, LLCExeter, ME524 MWhAug 2024Dec 2024 Solar
LoringAltus Power America Management, LLCLimestone, ME6 GWhApr 2023Dec 2024 Solar
CaribouAltus Power America Management, LLCCaribou, ME6 GWhJul 2023Dec 2024 Solar
BWC Wading River One, Two, Three CSGAmeresco BWC Wading River LLCMendon, MA5 GWhOct 2017Dec 2024 Solar
Ameresco Chicopee EnergyAMERESCO Chicopee Energy LLCChicopee, MA9 GWhJan 2004Dec 2024 Landfill Gas
Northampton Landfill Solar PVAmeresco Glendale Road Solar PV LLCNorthampton, MA4 GWhOct 2017Dec 2024 Solar
Bradley Energy CenterAmeresco Select IncWindsor Locks, CT12 GWhOct 2002Dec 2024 Natural Gas
Braintree Landfill SolarAmeresco, Inc - BraintreeBraintree, MA1 GWhNov 2014Dec 2024 Solar
GELD Solar FarmAmeresco, Inc - GELDGroton, MA3 GWhMay 2016Dec 2024 Solar
Weston Landfill SolarAmeresco, Inc - WestonWeston, MA3 GWhFeb 2016Dec 2024 Solar
Amherst College Co GenAmherst CollegeAmherst, MA7 GWhOct 2006Dec 2024 Natural Gas
DudleyAMP MA DudleyDudley, MA4 GWhJun 2018Dec 2024 Solar
Joe JennyAMP MA Joe JennyOxford, MA2 GWhApr 2018Dec 2024 Solar
Gilman MillAmpersand Gilman Hydro LPGilman, VT4 GWhDec 1940Dec 2024 Water
Orbit Energy RIAnaergiaJohnston, RI144 MWhJun 2017Dec 2024 Other Biomass Gas
ANP Blackstone Energy ProjectANP Blackstone Energy Company LLCBlackstone, MA3 TWhMay 2001Sep 2025 Natural Gas
Antrim WindAntrim Wind Energy LLCAntrim, NH75 GWhNov 2019Sep 2025 Wind
Arctaris Saddleback SolarArctaris Saddleback Solar, LLCDallas Plantation, ME5 GWhOct 2023Dec 2024 Solar
SCS Harpswell 012903 Brunswick, LLCArevon Energy, Inc.Brunswick, ME7 GWhOct 2022Dec 2024 Solar
ASD Cotuit MA Solar LLCASD Cotuit MA Solar LLCSandwich, MA2 GWhOct 2023Dec 2024 Solar
Three Rivers Solar LLCASD Three Rivers Road MA Solar LLCWilbraham, MA154 MWhOct 2024Dec 2024 Solar
ASD Wallum MA Solar LLC(CSG)ASD Wallum MA Solar LLCDouglas, MA9 GWhDec 2021Dec 2024 Solar
Ashby Solar, LLC CSGAshby Solar, LLCFitchburg, MA3 GWhJun 2018Dec 2024 Solar
Athens EnergyAthens Energy, LLCAthens, ME58 GWhSep 2016Dec 2024 Wood/Wood Waste Solids
Lempster Wind LLCAvangrid Power LLCLempster, NH68 GWhNov 2008Sep 2025 Wind
Deerfield Wind LLCAvangrid Power LLCSearsburg, VT95 GWhNov 2017Sep 2025 Wind
Groton Wind LLCAvangrid Power LLCGroton, NH115 GWhNov 2012Sep 2025 Wind
New England Wind LLCAvangrid Power LLCFlorida, MA75 GWhNov 2012Sep 2025 Wind
Barton Solar FarmBarton Solar, LLCBarton, VT2 GWhOct 2014Dec 2024 Solar
West CharlestonBarton Village, IncWest Charleston, VT7 GWhJun 1931Dec 2024 Water
Bashaw Solar CSG 1, LLCBashaw Solar 1, LLCNewbury, MA3 GWhMar 2017Dec 2024 Solar
Milo PV - BD Solar 1 LLCBD Solar 1 LLCMilo, ME31 GWhMay 2021Dec 2024 Solar
Winslow PV - BD Solar 2 LLCBD Solar 2 LLCWinslow, ME13 GWhJun 2022Dec 2024 Solar
Augusta PV - BD Solar Augusta LLCBD Solar Augusta LLCAugusta, ME10 GWhMay 2021Dec 2024 Solar
Fairfield PV - BD Solar Fairfield LLCBD Solar Fairfield LLCFairfield, ME8 GWhMay 2021Dec 2024 Solar
BD Solar Hancock LLCBD Solar Hancock LLCAugusta, ME7 GWhMay 2022Dec 2024 Solar
BD Solar Ellsworth LLCBD Solar Hancock North LLCAugusta, ME6 GWhMay 2022Dec 2024 Solar
Oxford PV - BD Solar Oxford LLCBD Solar Oxford LLCOxford, ME15 GWhMay 2021Dec 2024 Solar
Palmyra PV - BD Solar Palmyra LLCBD Solar Palmyra LLCPalmyra, ME8 GWhMay 2022Dec 2024 Solar
Beacon Solar, LLCBeacon Solar, LLCEasthampton, MA9 GWhOct 2022Dec 2024 Solar
Fife BrookBear Swamp Power Company LLCFlorida, MA29 GWhSep 1974Oct 2024 Water
Belchertown Renewables Community SolarBelchertown Renewables, LLCBelchertown, MA6 GWhFeb 2018Dec 2024 Solar
ANP Bellingham Energy ProjectBellingham Power Generation LLCBellingham, MA3 TWhOct 2002Sep 2025 Natural Gas
Berkshire PowerBerkshire Power Co LLCAgawam, MA573 GWhAug 1999Dec 2024 Natural Gas
Burgess BioPowerBerlin Station, LLCBerlin, NH349 GWhOct 2013Dec 2024 Wood/Wood Waste Solids
Bird Machine Solar FarmBird Machine Solar Farm, LLCSouth Walpole, MA6 GWhJul 2017Dec 2024 Solar
Blacksmith Road Solar 1Blacksmith Road Solar 1, LLCFalmouth, MA8 GWhNov 2021Dec 2024 Solar
Blackstone/TupperwareBlackstone Hydro Inc.North Smithfield, RI2 GWhDec 1980Sep 2025 Water
Sunpin BlandfordBlandford Sun, LLCSouthwick, MA6 GWhMay 2020Dec 2024 Solar
Blodgett Solar CSGBlodgett Street Solar 1, LLCTyngsboro, MA10 GWhJul 2021Dec 2024 Solar
Medtronic - New Haven 2Bloom EnergyNorth Haven, CT16 GWhSep 2020Dec 2024 Natural Gas
CoreSite - SomervilleBloom EnergySomerville, MA5 GWhAug 2020Dec 2024 Natural Gas
Medtronic - New HavenBloom EnergyNorth Haven, CT2 GWhSep 2020Dec 2024 Natural Gas
Equinix - BillericaBloom EnergyBillerica, MA15 GWhAug 2021Dec 2024 Natural Gas
Connecticut CollegeBloom EnergyNew London, CT9 GWhAug 2019Dec 2024 Natural Gas
Yale New Haven - New LondonBloom EnergyNew London, CT15 GWhAug 2022Dec 2024 Natural Gas
Digital FairfieldBloom EnergyTrumbull, CT10 GWhMay 2018Jun 2024 Natural Gas
One PatriotBloom EnergyFoxborough, MA16 GWhNov 2019Dec 2024 Natural Gas
Boltonville Hydro AssociatesBoltonville Hydro AssociatesBoltonville, VT3 GWhJun 1984Dec 2024 Water
Boott HydropowerBoott Hydro, LLC - HybridLowell, MA28 GWhSep 1985Dec 2024 Water
Boston Medical Center CHP PlantBoston Medical CenterBoston, MA14 GWhMar 2017Dec 2024 Natural Gas
Bradford SolarBradford Solar, LLCHaverhill, MA8 GWhMar 2017Dec 2024 Solar
Brassua Hydroelectric ProjectBrassua Hydroelectric LPRockwood, ME10 GWhAug 1989Dec 2024 Water
Breckenridge SolarBreckenridge Street Solar 1, LLCPalmer, MA7 GWhOct 2020Dec 2024 Solar
Penacook Lower FallsBriar-Hydro AssociatesBoscawen, NH17 GWhJul 1983Dec 2024 Water
Penacook Upper Falls HydroBriar-Hydro AssociatesPenacook, NH12 GWhNov 1986Dec 2024 Water

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#7California Independent System Operator188.0 TWh2,075
#9Tennessee Valley Authority161.6 TWh204
#10Florida Power & Light Co.148.9 TWh187
#12New York Independent System Operator131.6 TWh1,211
#13Duke Energy Carolinas112.5 TWh565
#15ISO New England105.5 TWh1,577
#16Bonneville Power Administration80.5 TWh163
#17Duke Energy Progress East64.3 TWh559
#18PacifiCorp East61.1 TWh216
#19Salt River Project Agricultural Improvement and Power District60.0 TWh48