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 301 to 400 of 1,306
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Pepperidge Farm BloomfieldPepperidge Farm, Inc.- BloomfieldBloomfield, CT15 GWhJul 2008Dec 2024 Natural Gas
Smith College Central Heating PlantThe Trustees of Smith CollegeNorthampton, MA14 GWhSep 2008Dec 2024 Natural Gas
Beaver Ridge WindCPV Beaver Ridge Wind LLCFreedom, ME10 GWhOct 2008Dec 2024 Wind
Lempster Wind LLCAvangrid Power LLCLempster, NH68 GWhNov 2008Sep 2025 Wind
MoretownNextEra Renewable Fuels, LLCWaterbury, VT5 GWhNov 2008Dec 2023 Landfill Gas
Stetson Wind IEvergreen Wind, LLCDanforth, ME121 GWhDec 2008Dec 2024 Wind
Orono Hydro StationBrookfield Black Bear Hydro, LLCOrono, ME6 GWhDec 2008Dec 2024 Water
Wesleyan University Cogen 1Wesleyan UniversityMiddletown, CT7 GWhJan 2009Dec 2024 Natural Gas
Waste Management Crossroads LFGTEWM Renewable Energy LLCNorridgewock, ME18 GWhFeb 2009Dec 2024 Landfill Gas
Frito Lay IncorporatedFrito Lay Incorporated DayvilleDayville, CT24 GWhFeb 2009Sep 2025 Natural Gas
Cellu TissueDunn Paper East Hartford, LLCEast Hartford, CT11 GWhApr 2009Sep 2025 Natural Gas
Waterbury GenerationEngie North AmericaWaterbury, CT44 GWhMay 2009Dec 2024 Natural Gas : 99.8%
Kibby Wind FacilityHelix Maine Wind Development, LLCChain of Ponds, ME262 GWhSep 2009Sep 2025 Wind
HSCo CHPCartier Energy, LLCHartford, CT27 GWhSep 2009Dec 2024 Natural Gas
Fox Island Wind LLCFox Island Wind LLCVinalhaven, ME8 GWhOct 2009Dec 2024 Wind
MA Military Reservation Wind ProjectAir Force Civil Engineer CenterOtis ANG Base Bourne, MA10 GWhNov 2009Dec 2024 Wind
Princeton Wind FarmTown of Princeton - (MA)Princeton, MA4 GWhDec 2009Dec 2024 Wind
Jewett City 1Connecticut Mun Elec Engy CoopJewett City, CT205 MWhJan 2010Dec 2024 Distillate Fuel Oil
Stetson Wind IIEvergreen Wind, LLCDanforth, ME50 GWhFeb 2010Dec 2024 Wind
LNG 1 & 2Connecticut Mun Elec Engy CoopNorwich, CT494 MWhMar 2010Dec 2024 Distillate Fuel Oil
Lebanon Pines 1 & 2Connecticut Mun Elec Engy CoopLebanon, CT471 MWhMar 2010Dec 2024 Distillate Fuel Oil
VPPSA Project 10Vermont Public Power Supply AuthoritySwanton, VT1 GWhApr 2010Dec 2024 Distillate Fuel Oil
Sikorsky Aircraft CHPSikorsky Aircraft CorporationStratford, CT53 GWhMay 2010Dec 2024 Natural Gas : 99.8%
GenConn Devon LLCGenConn Devon LLCMilford, CT4 GWhMay 2010Dec 2024 Kerosene : 90.3% Natural Gas : 9.7%
NEDC Solar SiteMassachusetts Electric CoWhitinsville, MA979 MWhMay 2010Dec 2024 Solar
Foxwoods CoGenFoxwoods Resort CasinoMashantucket, CT11 GWhMay 2010Dec 2024 Natural Gas
Notus Wind 1Notus Clean Energy LLCE. Falmouth, MA4 GWhJun 2010Dec 2024 Wind
Bridge Street 1 & 2Connecticut Mun Elec Engy CoopGroton, CT458 MWhJun 2010Dec 2024 Distillate Fuel Oil
Gary Court 1 & 2Connecticut Mun Elec Engy CoopGroton, CT422 MWhJun 2010Dec 2024 Distillate Fuel Oil
Fort Hill 1, 2, 3 & 4Connecticut Mun Elec Engy CoopUncasville, CT618 MWhJul 2010Sep 2025 Distillate Fuel Oil
Water Treatment 1 & 2Connecticut Mun Elec Engy CoopGroton, CT434 MWhSep 2010Sep 2025 Distillate Fuel Oil
Haverhill Solar Power ProjectMassachusetts Electric CoHaverhill, MA1 GWhNov 2010Dec 2024 Solar
Fishers Island 1Connecticut Mun Elec Engy CoopFisher's Island, NY151 MWhNov 2010Dec 2024 Distillate Fuel Oil
Silver Lake Solar Photovoltaic FacilityWestern Massachusetts Electric CompanyPittsfield, MA805 MWhNov 2010Dec 2024 Solar
Dartmouth SolarConsolidated Edison Development Inc.Dartmouth, MA2 GWhFeb 2011Dec 2024 Solar
Mt Wachusett Community CollegeMt Wachusett Community CollegeGardner, MA4 GWhFeb 2011Sep 2025 Wind
Chittenden County Solar PartnersChittenden County Solar Partners LLCSouth Burlington, VT3 GWhApr 2011Dec 2024 Solar
Berkshire Wind Power ProjectMassachusetts Mun Wholes Electric CoLanesboro, MA39 GWhApr 2011Sep 2025 Wind
Ipswich Wind TurbineTown of Ipswich - (MA)Ipswich, MA2 GWhApr 2011Dec 2024 Wind
GenConn Middletown LLCGenConn Middletown LLCMiddletown, CT6 GWhMay 2011Dec 2024 Kerosene : 57.4% Natural Gas : 42.6%
Kleen Energy Systems ProjectKleen Energy Systems, LLCMiddletown, CT3 TWhJun 2011Sep 2025 Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Rollins Wind ProjectEvergreen Wind, LLCWinn Village, ME136 GWhJun 2011Dec 2024 Wind
158th Fighter Wing Solar Farm158th Fighter WingSouth Burlington, VT1 GWhAug 2011Dec 2023 Solar
Southbridge Landfill Gas-to-EnergySouthbridge Recycling and Disposal ParkSouthbridge, MA12 GWhSep 2011Dec 2024 Landfill Gas
Charlestown Wind TurbineMWRA CharlestownCharlestown, MA1 GWhSep 2011Dec 2024 Wind
Sheffield WindEvergreen Wind, LLCSheffield, VT73 GWhSep 2011Sep 2025 Wind
Danbury Hospital Cogen PlantDanbury HospitalDanbury, CT28 GWhOct 2011Dec 2024 Natural Gas
Spruce Mountain WIndCPV Spruce Mountain Wind LLCBryant Pond, ME54 GWhNov 2011Dec 2024 Wind
Berkshire 1PPS Berkshire Solar LLCSheffield, MA2 GWhNov 2011Dec 2024 Solar
Indian Orchard PV FacilityWestern Massachusetts Electric CompanySpringfield, MA3 GWhNov 2011Dec 2024 Solar
Holyoke Solar Cooperative at MuellerHolyoke Solar LLCHolyoke, MA4 GWhNov 2011Dec 2024 Solar
Record Hill WindRecord Hill Wind LLCRoxbury, ME115 GWhDec 2011Dec 2024 Wind
Dorchester Solar SiteMassachusetts Electric CoDorchester, MA2 GWhDec 2011Dec 2024 Solar
Granite Reliable PowerNexteraEnergyDummer, NH195 GWhJan 2012Sep 2025 Wind
Agawam SolarCitizens Enterprises CorporationAgawam, MA2 GWhFeb 2012Dec 2024 Solar
WED NK GreenWED NK Green LLCNorth Kingstown, RI2 GWhFeb 2012Dec 2024 Wind
Scituate WindScituate Wind LLCScituate, MA2 GWhFeb 2012Dec 2024 Wind
NFM Solar Power LLCFirstLight Power Resources, Inc. - MANorthfield, MA2 GWhFeb 2012Dec 2024 Solar
433 Purchase Solar NG, LLCNuGen Capital ManagementSwansea, MA4 GWhMar 2012Dec 2024 Solar
Westford Solar ParkMN8 Energy LLCWestford, MA5 GWhMar 2012Dec 2024 Solar
Fairhaven WindFairhaven Wind LLCFairhaven, MA4 GWhMar 2012Dec 2024 Wind
CCSU Fuel Cell ProjectNew Britain Renewable Energy, LLCNew Britain, CT11 GWhMar 2012Dec 2024 Natural Gas
Dartmouth II SolarConsolidated Edison Development Inc.Dartmouth, MA3 GWhMay 2012Dec 2024 Solar
Easthampton Landfill-City of EasthamptonCleanCapital HoldingsEasthampton, MA3 GWhMay 2012Dec 2024 Solar
Axio Green LLCAltus Power America Management, LLCGreenfield Township, MA3 GWhMay 2012Dec 2024 Solar
Town of Uxbridge MA at Commerce DrLuminace Solar Net Metering, LLCUxbridge, MA3 GWhMay 2012Dec 2024 Solar
Town of Norfolk MA at Medway BranchLuminace Solar Massachusetts, LLCNorfolk, MA2 GWhMay 2012Dec 2024 Solar
126 Grove Solar LLCAltus Power America Management, LLCFranklin, MA2 GWhMay 2012Dec 2024 Solar
IKEA New Haven Rooftop PV & Fuel CellIKEA Property IncNew Haven, CT3 GWhJun 2012Dec 2024 Natural Gas : 73.1% Solar : 26.9%
Acushnet AD MakepeaceCleanCapital HoldingsWareham, MA6 GWhJun 2012Dec 2024 Solar
Acushnet Hawes Reed RoadCleanCapital HoldingsDartmouth, MA2 GWhJun 2012Dec 2024 Solar
OSG Solar 1 LLCNavisun LLCOrange, MA3 GWhJun 2012Dec 2024 Solar
CantonCaptona Canton LLCCanton, MA6 GWhJul 2012Dec 2024 Solar
True NorthCD US Solar MT1 LLCSalisbury, MA6 GWhJul 2012Dec 2024 Solar
SunGen Sharon 1 LLCSunGen Sharon 1 LLCSharon, VT3 GWhJul 2012Dec 2024 Solar
Camelot Wind LLCCamelot Wind LLCPlymouth, MA2 GWhSep 2012Dec 2024 Wind
Bull Hill Wind ProjectEvergreen Wind, LLCEastbrook, ME74 GWhSep 2012Dec 2024 Wind
Shrewsbury SolarConsolidated Edison Development Inc.Shrewsbury, MA4 GWhSep 2012Dec 2024 Solar
NBC Field's Point Wind FarmNarragansett Bay CommissionProvidence, RI7 GWhSep 2012Sep 2025 Wind
Kingdom Community WindGreen Mountain Power CorpLowell, VT180 GWhOct 2012Sep 2025 Wind
Williamstown SolarCVI CleanCapital Solar 1 LLCWilliamstown, VT2 GWhNov 2012Dec 2024 Solar
Groton Wind LLCAvangrid Power LLCGroton, NH115 GWhNov 2012Sep 2025 Wind
SVEP Solar Project CompanyCVI CleanCapital Solar 1 LLCPownal, VT2 GWhNov 2012Dec 2024 Solar
Padelford SolarConsolidated Edison Solutions Inc.Berkley, MA3 GWhNov 2012Dec 2024 Solar
New England Wind LLCAvangrid Power LLCFlorida, MA75 GWhNov 2012Sep 2025 Wind
Boston Scientific SolarConsolidated Edison Solutions Inc.Quincy, MA2 GWhNov 2012Dec 2024 Solar
Douglas SolarConsolidated Edison Development Inc.Douglas, MA3 GWhNov 2012Dec 2024 Solar
Georgia Mountain Community Wind FarmGreenbacker Renewable Energy CorporationMilton, VT30 GWhNov 2012Sep 2025 Wind
Groveland SolarConsolidated Edison Development Inc.Groveland, MA4 GWhNov 2012Dec 2024 Solar
Manheim New EnglandCox EnterprisesNorth Dighton, MA2 GWhNov 2012Dec 2024 Solar
Acushnet-Braley Road 1CleanCapital HoldingsFreetown, MA2 GWhDec 2012Dec 2024 Solar
EBZ SolarCitizens Enterprises CorporationShirley, MA4 GWhDec 2012Dec 2024 Solar
Clark UniversityClark UniversityWorcester, MA4 GWhDec 2012Dec 2024 Natural Gas
CES Sterling LLCSunEdison LLCSterling, MA3 GWhJan 2013Dec 2024 Solar
Dartmouth LandfillCleanCapital HoldingsDartmouth, MA2 GWhJan 2013Dec 2024 Solar
Fall River Solar CSGMN8 Energy LLCFall River, MA2 GWhJan 2013Dec 2024 Solar
Whately SolarCitizens Enterprises CorporationWhately, MA2 GWhFeb 2013Dec 2024 Solar
Route 57 SolarCitizens Enterprises CorporationAgawam, MA2 GWhFeb 2013Dec 2024 Solar
Acushnet- High HillCleanCapital HoldingsDartmouth, MA3 GWhFeb 2013Dec 2024 Solar
West Greenwich SolarConsolidated Edison Development Inc.West Greenwich, RI3 GWhApr 2013Sep 2025 Solar

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