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
Gillette SBMCThe Gillette CompanyBoston, MA55 GWhJan 1971Sep 2025 Natural Gas
Town of East Bridgewater CSGTesla Inc.East Bridgewater, MA1 GWhMay 2013Dec 2024 Solar
Oneida County- DPWTesla Inc.Oriskany, NY2 GWhSep 2017Dec 2024 Solar
CMEEC - BozrahTesla Inc.Bozrah, CT3 GWhNov 2016Dec 2024 Solar
Town of BranfordTesla Inc.Branford, CT2 GWhMay 2018Dec 2024 Solar
Town of Needham VNEM CSGTesla Inc.Needham, MA3 GWhJan 2016Dec 2024 Solar
Conn Mun Electric Energy CoopTesla Inc.Norwich, CT1 GWhNov 2016Dec 2024 Solar
Town of Rocky Hill PV CSGTesla Inc.Rocky Hill, CT5 GWhFeb 2018Dec 2024 Solar
Advance Stores Company, IncTesla Inc.Enfield, CT1 GWhOct 2014Dec 2024 Solar
BJ's Wholesale Club, Inc- UxbridgeTesla Inc.Uxbridge, MA270 MWhJun 2017Dec 2024 Solar
Hampshire College HybridTesla Inc.Amherst, MA5 GWhApr 2017Dec 2024 Solar
Town of HalfmoonTesla Inc.Waterford, NY1 GWhMay 2017Dec 2024 Solar
CMEEC - Norwich Stott St Solar HybridTesla Inc.Norwich, CT4 GWhNov 2016Dec 2024 Solar
CMEEC - Navy NE TridentTesla Inc.Groton, CT1 GWhMay 2017Dec 2024 Solar
CMEEC - Polaris Park Solar HybridTesla Inc.Gordon, CT5 GWhJul 2017Dec 2024 Solar
CMEEC - Rogers Rd SolarTesla Inc.Norwich, CT875 MWhJan 2017Dec 2024 Solar
Orange County Solar Farm (NY)Tesla Inc.Goshen, NY2 GWhApr 2017Dec 2024 Solar
Hewlett-Packard (HP) - Andover, MATesla Inc.Andover, MA2 GWhMay 2017Dec 2024 Solar
Greene County Meter #1Tesla Inc.Cairo, NY2 GWhJan 2018Dec 2024 Solar
Onondaga County- ClearwaterTesla Inc.Oswego, NY3 GWhJun 2017Dec 2024 Solar
Williamsburg Solar LLC VNEM CSGTesla Inc.Haydenville, MA3 GWhJan 2016Dec 2024 Solar
BlueWave Capital - Grafton (SREC II)TerraForm Solar XVII, LLCGrafton, MA2 GWhFeb 2015Dec 2024 Solar
RGS-Rutland VNM SREC II Project (MA)TerraForm Solar XVII, LLCRutland, MA2 GWhOct 2015Dec 2024 Solar
Southbridge PVTerraform ArcadiaSouthbridge, MA4 GWhDec 2013Dec 2024 Solar
Maynard PVTerraform ArcadiaMaynard, MA1 GWhDec 2013Dec 2024 Solar
Orange PVTerraform ArcadiaOrange, MA3 GWhJun 2013Dec 2024 Solar
Marshfield PVTerraform ArcadiaMarshfield, MA5 GWhNov 2013Dec 2024 Solar
Bellingham PVTerraform ArcadiaDouglas, MA4 GWhSep 2013Dec 2024 Solar
MDFA Devens-SaratogaTerraform ArcadiaDevens, MA3 GWhFeb 2016Dec 2024 Solar
AIS Solar ProjectTerraform ArcadiaLeominster, MA3 GWhNov 2016Dec 2024 Solar
BrooksideTerraform ArcadiaNorth Smithfield, RI2 GWhOct 2015Nov 2024 Solar
Tanglewood Circle Solar 1 LLCTanglewood Circle Solar 1 LLCBecket, MA8 GWhOct 2018Dec 2024 Solar
Syncarpha Westminster Hybrid CSGSyncarpha Westminster, LLCWestminster, MA7 GWhOct 2022Dec 2024 Solar
Syncarpha Tewksbury Hybrid CSGSyncarpha Tewksbury, LLCTewksbury, MA4 GWhJan 2022Dec 2024 Solar
Syncarpha Still River, LLC CSGSyncarpha Still River, LLCBolton, MA4 GWhNov 2016Dec 2024 Solar
Syncarpha Puddon II Hybrid CSGSyncarpha Puddon II, LLCNorthbridge, MA9 GWhFeb 2021Dec 2024 Solar
Syncarpha Puddon I Hybrid CSGSyncarpha Puddon I, LLCNorthbridge, MA9 GWhFeb 2021Dec 2024 Solar
Syncarpha Palmer, LLCSyncarpha Palmer, LLCPalmer, MA7 GWhNov 2015Dec 2024 Solar
Syncarpha Northbridge II Hybrid CSGSyncarpha Northbridge II, LLCWhitinsville, MA8 GWhMar 2021Dec 2024 Solar
Syncarpha Northbridge I Hybrid(CSG)Syncarpha Northbridge I, LLCWhitinsville, MA9 GWhNov 2021Dec 2024 Solar
Syncarpha Northampton Hybrid CSGSyncarpha Northampton, LLCNorthampton, MA5 GWhNov 2020Dec 2024 Solar
North Adams LandfillSyncarpha North Adams, LLCNorth Adams, MA3 GWhSep 2015Dec 2024 Solar
Syncarpha Millbury Hybrid (CSG)Syncarpha Millbury, LLCMillbury, MA8 GWhSep 2022Dec 2024 Solar
LeominsterSyncarpha Massachusetts, LLCLeominster, MA3 GWhApr 2015Dec 2024 Solar
Town of Lexington SolarSyncarpha Lexington, LLCLexington, MA3 GWhApr 2017Dec 2024 Solar
Syncarpha Leicester Hybrid CSGSyncarpha Leicester, LLCLeicester, MA5 GWhMay 2021Dec 2024 Solar
Syncarpha Hancock III CSGSyncarpha Hancock III, LLCPittsfield, MA2 GWhOct 2017Dec 2024 Solar
Syncarpha Hancock II CSGSyncarpha Hancock II, LLCHancock, MA3 GWhOct 2017Dec 2024 Solar
Syncarpha Hancock I CSGSyncarpha Hancock I, LLCHancock, MA3 GWhOct 2017Dec 2024 Solar
Syncarpha Halifax Hybrid CSGSyncarpha Halifax, LLCHalifax, MA3 GWhNov 2020Dec 2024 Solar
Palmer LandfillSyncarpha Bondsville, LLCPalmer, MA6 GWhNov 2016Dec 2024 Solar
Syncarpha Blandford Hybrid CSGSyncarpha Blandford, LLCBlandford, MA8 GWhNov 2019Dec 2024 Solar
Sutton Solar CSGSutton Solar, LLCSutton, MA3 GWhOct 2016Dec 2024 Solar
Sutton Solar 2, LLC CSGSutton Solar 2, LLCSutton, MA1 GWhNov 2020Dec 2024 Solar
ApolloSunrise on Wing Ln. LLCAcushnet, MA2 GWhAug 2021Dec 2024 Solar
Peru (MA)Sunrise on West Main Rd. LLCPeru, MA5 GWhOct 2020Dec 2024 Solar
WesthamptonSunrise on Montague Rd. LLCWesthampton, MA7 GWhNov 2020Dec 2024 Solar
New MarlboroughSunrise on Knight Rd. LLCNew Marlborough, MA7 GWhMay 2021Dec 2024 Solar
Westport (MA)Sunrise on Drift Rd. LLCWestport, MA4 GWhSep 2020Dec 2024 Solar
TollandSunrise on Clubhouse Rd. LLCTolland, MA8 GWhNov 2020Dec 2024 Solar
Russell (MA)Sunrise on Blandford Rd. LLCRussell, MA5 GWhOct 2020Dec 2024 Solar
Westborough Solar LLCSunRay Power LLCWestborough, MA2 GWhMar 2014Dec 2024 Solar
TempletonSunny Templeton, LLCTempleton, MA5 GWhNov 2014Dec 2024 Solar
SunGen Sharon 1 LLCSunGen Sharon 1 LLCSharon, VT3 GWhJul 2012Dec 2024 Solar
Berkley East Solar LLCSunEdison LLCBerkley, MA5 GWhJun 2013Dec 2024 Solar
CES Sterling LLCSunEdison LLCSterling, MA3 GWhJan 2013Dec 2024 Solar
Lower Village Water Power ProjectSugar River Power LLCClaremont, NH4 GWhApr 1995Dec 2024 Water
Sugar Hill Solar 1Sugar Hill Solar 1, LLCClifton Park, NY8 GWhNov 2020Dec 2024 Solar
Indeck Jonesboro Energy CenterStored Solar J&WEJonesboro, ME16 MWhNov 1987Jun 2025 Gaseous Propane : 66.7% Wood/Wood Waste Solids : 33.3%
Indeck West Enfield Energy CenterStored Solar J&WEWest Enfield, ME51 GWhNov 1987Dec 2024 Wood/Wood Waste Solids : 99.9%
Central Power PlantState of Rhode IslandCranston, RI19 GWhJul 1958Sep 2025 Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
MHG WallingfordStandard SolarWallingford, VT4 GWhNov 2019Dec 2024 Solar
Town of Burrillville Solar CSGStandard SolarBurrillville, RI5 GWhSep 2020Dec 2024 Solar
Fort FairfieldStandard SolarFort Fairfield, ME8 GWhJul 2023Dec 2024 Solar
Stamford Health Tully Health CenterStamford Health Tully Health CenterStamford, CT5 GWhApr 2002Dec 2024 Natural Gas
Stafford St Solar 3 CSGStafford St Solar 3, LLCLeicester, MA2 GWhNov 2017Dec 2024 Solar
Stafford St 2 Community SolarStafford St Solar 2, LLCLecister, MA4 GWhApr 2018Dec 2024 Solar
Stafford St Solar 1 CSGStafford St Solar 1, LLCLeicester, MA4 GWhNov 2017Dec 2024 Solar
St. Albans SPEED ProjectSt. Albans Solar Partners, LLCSt. Albans, VT2 GWhNov 2013Dec 2024 Solar
SR North StoningtonSR North Stonington, LLCNorth Stonington, CT13 GWhFeb 2024Dec 2024 Solar
Spring Street Solar 1 CSGSpring Street Solar 1, LLCCarver, MA3 GWhFeb 2017Dec 2024 Solar
Southern Sky Renew Energy Berkley LLCSouthern Sky Renewable Energy Berkley, LLCBerkley, MA3 GWhMay 2014Dec 2024 Solar
Passadumkeag Windpark LLCSouthern Power CoGreenbush, ME140 GWhJun 2016Sep 2025 Wind
Southbridge Landfill Gas-to-EnergySouthbridge Recycling and Disposal ParkSouthbridge, MA12 GWhSep 2011Dec 2024 Landfill Gas
Leominster (MA)-South Street-R&DSouth Street Solar, LLCTewksbury, MA3 GWhNov 2013Dec 2024 Solar
South Windsor Fuel CellSouth Energy Investments LLCSouth Windsor, CT39 GWhFeb 2020Dec 2024 Natural Gas
Indian Orchard Plant 1Solutia Inc-IndianSpringfield, MA137 MWhApr 1985Aug 2025 Natural Gas
Amazon BDL3 Solar ProjectSolar Star Prime 1 LLCNew Haven, CT2 GWhSep 2019Dec 2024 Solar
Solar Mule, LLCSolar Mule, LLCOakland, ME2 GWhAug 2017Dec 2024 Solar
McAllister LandfillSolar Breakers LLCPortsmouth, RI1 GWhSep 2022Dec 2024 Solar
Tank Farm 4Solar Breakers LLCPortsmouth, RI10 GWhSep 2022Dec 2024 Solar
ME Augusta 13 York Farm Rd SolarSOL ME Augusta 13 York Farm, LLCAugusta, ME1 GWhDec 2023Dec 2024 Solar
Jericho Gravel Solar FarmSoCore Energy LLCJerico, VT2 GWhDec 2020Dec 2024 Solar
Jericho Landfill Solar FarmSoCore Energy LLCJerico, VT2 GWhDec 2020Dec 2024 Solar
Marston Mills SolarSoCore Energy LLCMarstons Mills, MA6 GWhNov 2021Dec 2024 Solar
Partridge SolarSoCore Energy LLCLanesborough, MA8 GWhAug 2022Dec 2024 Solar
Adams Grove SolarSoCore Energy LLCAdams, MA6 GWhAug 2022Dec 2024 Solar
Skyline SolarSoCore Energy LLCLanesborough, MA7 GWhAug 2022Dec 2024 Solar
Saddleback SolarSoCore Energy LLCLanesborough, MA4 GWhAug 2022Dec 2024 Solar
VEC Alburgh ArraySoCore Energy LLCAlburgh, VT1 GWhNov 2016Dec 2024 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