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 1,201 to 1,300 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
SunGen Sharon 1 LLCSunGen Sharon 1 LLCSharon, VT2 GWhJul 2012Dec 2025 Solar
TempletonSunny Templeton, LLCTempleton, MA2 GWhNov 2014Dec 2025 Solar
Westborough Solar LLCSunRay Power LLCWestborough, MA2 GWhMar 2014Dec 2024 Solar
Russell (MA)Sunrise on Blandford Rd. LLCRussell, MA5 GWhOct 2020Dec 2024 Solar
TollandSunrise on Clubhouse Rd. LLCTolland, MA8 GWhNov 2020Dec 2024 Solar
Westport (MA)Sunrise on Drift Rd. LLCWestport, MA4 GWhSep 2020Dec 2024 Solar
New MarlboroughSunrise on Knight Rd. LLCNew Marlborough, MA7 GWhMay 2021Dec 2024 Solar
WesthamptonSunrise on Montague Rd. LLCWesthampton, MA7 GWhNov 2020Dec 2024 Solar
Peru (MA)Sunrise on West Main Rd. LLCPeru, MA5 GWhOct 2020Dec 2024 Solar
ApolloSunrise on Wing Ln. LLCAcushnet, MA2 GWhAug 2021Dec 2024 Solar
Antanavica SolarSunStrong Management, LLCLeicester, MA1 GWhJul 2018Dec 2024 Solar
Sutton Solar 2, LLC CSGSutton Solar 2, LLCSutton, MA1 GWhNov 2020Dec 2025 Solar
Sutton Solar CSGSutton Solar, LLCSutton, MA3 GWhOct 2016Dec 2025 Solar
Syncarpha Blandford Hybrid CSGSyncarpha Blandford, LLCBlandford, MA8 GWhNov 2019Dec 2025 Solar
Palmer LandfillSyncarpha Bondsville, LLCPalmer, MA6 GWhNov 2016Dec 2025 Solar
Syncarpha Halifax Hybrid CSGSyncarpha Halifax, LLCHalifax, MA3 GWhNov 2020Dec 2025 Solar
Syncarpha Hancock I CSGSyncarpha Hancock I, LLCHancock, MA3 GWhOct 2017Dec 2025 Solar
Syncarpha Hancock II CSGSyncarpha Hancock II, LLCHancock, MA3 GWhOct 2017Dec 2025 Solar
Syncarpha Hancock III CSGSyncarpha Hancock III, LLCPittsfield, MA1 GWhOct 2017Dec 2025 Solar
Syncarpha Leicester Hybrid CSGSyncarpha Leicester, LLCLeicester, MA4 GWhMay 2021Dec 2025 Solar
Town of Lexington SolarSyncarpha Lexington, LLCLexington, MA3 GWhApr 2017Dec 2025 Solar
LeominsterSyncarpha Massachusetts, LLCLeominster, MA3 GWhApr 2015Dec 2025 Solar
Syncarpha Millbury Hybrid (CSG)Syncarpha Millbury, LLCMillbury, MA8 GWhSep 2022Dec 2025 Solar
North Adams LandfillSyncarpha North Adams, LLCNorth Adams, MA3 GWhSep 2015Dec 2025 Solar
Syncarpha Northampton Hybrid CSGSyncarpha Northampton, LLCNorthampton, MA5 GWhNov 2020Dec 2025 Solar
Syncarpha Northbridge I Hybrid(CSG)Syncarpha Northbridge I, LLCWhitinsville, MA8 GWhNov 2021Dec 2025 Solar
Syncarpha Northbridge II Hybrid CSGSyncarpha Northbridge II, LLCWhitinsville, MA8 GWhMar 2021Dec 2025 Solar
Syncarpha Palmer, LLCSyncarpha Palmer, LLCPalmer, MA7 GWhNov 2015Dec 2025 Solar
Syncarpha Puddon I Hybrid CSGSyncarpha Puddon I, LLCNorthbridge, MA8 GWhFeb 2021Dec 2025 Solar
Syncarpha Puddon II Hybrid CSGSyncarpha Puddon II, LLCNorthbridge, MA8 GWhFeb 2021Dec 2025 Solar
Syncarpha Still River, LLC CSGSyncarpha Still River, LLCBolton, MA4 GWhNov 2016Dec 2025 Solar
Syncarpha Tewksbury Hybrid CSGSyncarpha Tewksbury, LLCTewksbury, MA4 GWhJan 2022Dec 2025 Solar
Syncarpha Westminster Hybrid CSGSyncarpha Westminster, LLCWestminster, MA6 GWhOct 2022Dec 2025 Solar
Tanglewood Circle Solar 1 LLCTanglewood Circle Solar 1 LLCBecket, MA7 GWhOct 2018Dec 2025 Solar
Amazon BDL4Telyon AMZ Windsor LLCWindsor, CT4 GWhDec 2024Dec 2025 Solar
BrooksideTerraform ArcadiaNorth Smithfield, RI969 MWhOct 2015Nov 2025 Solar
Orange PVTerraform ArcadiaOrange, MA3 GWhJun 2013Dec 2025 Solar
Marshfield PVTerraform ArcadiaMarshfield, MA5 GWhNov 2013Dec 2025 Solar
Bellingham PVTerraform ArcadiaDouglas, MA4 GWhSep 2013Dec 2025 Solar
MDFA Devens-SaratogaTerraform ArcadiaDevens, MA3 GWhFeb 2016Dec 2025 Solar
Maynard PVTerraform ArcadiaMaynard, MA1 GWhDec 2013Dec 2025 Solar
AIS Solar ProjectTerraform ArcadiaLeominster, MA3 GWhNov 2016Dec 2025 Solar
Southbridge PVTerraform ArcadiaSouthbridge, MA4 GWhDec 2013Dec 2025 Solar
RGS-Rutland VNM SREC II Project (MA)TerraForm Solar XVII, LLCRutland, MA3 GWhOct 2015Dec 2025 Solar
BlueWave Capital - Grafton (SREC II)TerraForm Solar XVII, LLCGrafton, MA2 GWhFeb 2015Dec 2025 Solar
Advance Stores Company, IncTesla Inc.Enfield, CT1 GWhOct 2014Mar 2025 Solar
Town of East Bridgewater CSGTesla Inc.East Bridgewater, MA1 GWhMay 2013Dec 2025 Solar
BJ's Wholesale Club, Inc- UxbridgeTesla Inc.Uxbridge, MA270 MWhJun 2017Dec 2024 Solar
Onondaga County- ClearwaterTesla Inc.Oswego, NY3 GWhJun 2017Dec 2025 Solar
CMEEC - Norwich Stott St Solar HybridTesla Inc.Norwich, CT4 GWhNov 2016Dec 2025 Solar
CMEEC - Navy NE TridentTesla Inc.Groton, CT1 GWhMay 2017Dec 2025 Solar
CMEEC - Polaris Park Solar HybridTesla Inc.Gordon, CT4 GWhJul 2017Dec 2025 Solar : 99.9%
CMEEC - Rogers Rd SolarTesla Inc.Norwich, CT2 GWhJan 2017Dec 2025 Solar
Town of BranfordTesla Inc.Branford, CT2 GWhMay 2018Dec 2025 Solar
Greene County Meter #1Tesla Inc.Cairo, NY2 GWhJan 2018Dec 2025 Solar
Town of HalfmoonTesla Inc.Waterford, NY1 GWhMay 2017Dec 2024 Solar
Oneida County- DPWTesla Inc.Oriskany, NY1 GWhSep 2017Dec 2025 Solar
Hampshire College HybridTesla Inc.Amherst, MA3 GWhApr 2017Dec 2025 Solar
Town of Rocky Hill PV CSGTesla Inc.Rocky Hill, CT5 GWhFeb 2018Dec 2025 Solar
Williamsburg Solar LLC VNEM CSGTesla Inc.Haydenville, MA1 GWhJan 2016Dec 2025 Solar
Town of Needham VNEM CSGTesla Inc.Needham, MA4 GWhJan 2016Dec 2025 Solar
Hewlett-Packard (HP) - Andover, MATesla Inc.Andover, MA2 GWhMay 2017Dec 2025 Solar
Orange County Solar Farm (NY)Tesla Inc.Goshen, NY2 GWhApr 2017Dec 2025 Solar
Conn Mun Electric Energy CoopTesla Inc.Norwich, CT1 GWhNov 2016Dec 2025 Solar
CMEEC - BozrahTesla Inc.Bozrah, CT3 GWhNov 2016Dec 2025 Solar
Gillette SBMCThe Gillette CompanyBoston, MA54 GWhJan 1971May 2026 Natural Gas
Great Falls (VT)The Town of Lyndon Elec Dept - (VT)Lyndon, VT2 GWhJul 1915Dec 2025 Water
Smith College Central Heating PlantThe Trustees of Smith CollegeNorthampton, MA6 GWhSep 2008Dec 2025 Natural Gas
Theodore Drive Community SolarTheodore Drive Solar, LLCWestminster, MA2 GWhFeb 2018Dec 2025 Solar
Three Corners SolarThree Corners Solar, LLCUnity, ME197 GWhJun 2024May 2026 Solar
Tiverton Power PlantTiverton Power LLCTiverton, RI2 TWhFeb 2000Dec 2025 Natural Gas
Pejepscot Hydroelectric ProjectTopsham Hydro PartnersTopsham, ME50 GWhOct 1987Dec 2025 Water
Toray Plastic America's CHP PlantToray Plastics AmericaNorth Kingstown, RI157 GWhDec 2002Dec 2025 Natural Gas
CTGB OsbornTotalEnergies Renewables USA LLCSomers, CT3 GWhNov 2024Dec 2025 Solar
CTGB Maloney and WebsterTotalEnergies Renewables USA LLCCheshire, CT3 GWhJun 2025Dec 2025 Solar
ME-EDFR-Phase I-EmbdenTower Solar Partners, LLCEmbden, ME8 GWhNov 2023Dec 2025 Solar
Potter Station 2Town of Braintree - (MA)Braintree, MA41 GWhJun 1963Dec 2025 Natural Gas : 61.2% Distillate Fuel Oil : 38.8%
Town of Foxborough - Landfill (SREC II)Town of Foxborough - Landfill (SREC II)Foxborough, MA2 GWhJul 2017Dec 2025 Solar
Cherry StreetTown of Hudson - (MA)Hudson, MA320 MWhApr 1951Dec 2025 Distillate Fuel Oil : 58.5% Natural Gas : 41.5%
Ipswich Wind TurbineTown of Ipswich - (MA)Ipswich, MA2 GWhApr 2011Dec 2025 Wind
High Street StationTown of Ipswich - (MA)Ipswich, MA153 MWhMay 1937Dec 2025 Natural Gas : 92.3% Distillate Fuel Oil : 7.7%
Wilkins StationTown of Marblehead - (MA)Marblehead, MA32 MWhOct 1975Dec 2025 Distillate Fuel Oil
Princeton Wind FarmTown of Princeton - (MA)Princeton, MA4 GWhDec 2009Dec 2025 Wind
ShrewsburyTown of Shrewsbury - (MA)Shrewsbury, MA2 GWhOct 1969Dec 2025 Distillate Fuel Oil
Centech Gas GeneratorTown of Shrewsbury - (MA)Shrewsbury, MA428 MWhMar 2019Dec 2025 Natural Gas
Stafford MS Ground Mount Community SolarTown of Stafford - (CT)Stafford, CT3 GWhJun 2016Dec 2025 Solar
Nebraska Valley Solar FarmTown of Stowe - (VT)Stowe, VT1 GWhJul 2016Dec 2025 Solar
West Boylston Community Shared SolarTown of West Boylston - (MA)West Boylston, MA447 MWhNov 2016Dec 2025 Solar
TPE RI WA1 SolarTPE RI WA1, LLCWarren, RI6 GWhMay 2024Dec 2025 Solar
TPE RI WA2 SolarTPE RI WA2, LLCWarren, RI6 GWhMay 2024Dec 2025 Solar
UB Fuel CellUB Fuel CellBridgeport, CT10 GWhMar 2015Dec 2025 Natural Gas
UDR Glastonbury Fuel CellUIL Distributed Resources, LLCGlastonbury, CT16 GWhJan 2016Dec 2025 Natural Gas
UI RCP Woodbridge FCUnited Illuminating CoWoodbridge, CT17 GWhNov 2016Dec 2025 Natural Gas
UI RCP New Haven Fuel CellUnited Illuminating CoNew Haven, CT21 GWhJul 2015May 2026 Natural Gas
UI RCP Bridgeport SeasideUnited Illuminating CoBridgeport, CT18 GWhOct 2015May 2026 Natural Gas : 84.7% Solar : 15.3%
Pratt & WhitneyUnited TechnologiesEast Hartford, CT76 GWhDec 1991May 2026 Natural Gas
UCONN Cogen FacilityUniversity of ConnecticutStorrs, CT112 GWhFeb 2006May 2026 Natural Gas : 95.2% Distillate Fuel Oil : 4.8%
Central Heating PlantUniversity of Massachusetts AmherstAmherst, MA80 GWhSep 2007Dec 2025 Natural Gas : 96.3% Distillate Fuel Oil : 3.7%
Univ of Massachusetts Medical CenterUniversity of Massachusetts MedicalWorcester, MA63 GWhMar 1974Dec 2025 Natural Gas : 99.3% Distillate Fuel Oil : 0.6%
Upton Community SolarUpton Solar, LLCUpton, MA3 GWhAug 2017Dec 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