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 to 100 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
77 Farm to Market Rd Hybrid(CSG)77F2M WHAM8 Solar, LLCWareham, MA9 GWhNov 2021Dec 2024 Solar
71 Charlotte Furnace Rd Hybrid(CSG)71CFR WHAM8 Solar, LLCWareham, MA2 GWhNov 2021Dec 2024 Solar
700 BinnewaterMadison Energy Investments LLCRosendale, NY2 GWhAug 2022Dec 2025 Solar
665 Scenic HighwayMadison Energy Investments LLCBourne, MA89 MWhNov 2022Dec 2025 Solar
651 Chase Solar NGNuGen Capital ManagementLunenburg, MA4 GWhMay 2014Dec 2025 Solar
59 Federal Rd(CSG)59FED WHAM8 Solar, LLCCarver, MA11 GWhOct 2021Dec 2024 Solar
580 River SolarNuGen Capital ManagementWinchendon, MA4 GWhAug 2018Dec 2025 Solar
515 Main Saugus515 Main Saugus LLCSaugus, MA2 GWhAug 2017Dec 2025 Solar
5 BerryMadison Energy Investments LLCPlainsville, MA8 GWhAug 2023Dec 2025 Solar
433 Purchase Solar NG, LLCNuGen Capital ManagementSwansea, MA4 GWhMar 2012Dec 2025 Solar
3ColtonMadison Energy Holdings LLCMillbury, MA5 GWhJun 2023Dec 2025 Solar
376 NashMadison Energy Investments LLCNew Bedford, MA17 MWhNov 2024Dec 2025 Solar
3232 Batavia Solar3232 Batavia Solar, LLCBatavia, NY7 GWhFeb 2021Dec 2025 Solar
3104 Batavia Solar3104 Batavia Solar, LLCBatavia, NY5 GWhFeb 2021Dec 2025 Solar
301 Chestnut Solar NGNuGen Capital ManagementEast Longmeadow, MA2 GWhMar 2017Dec 2025 Solar
299 Farm to Market Rd Hybrid(CSG)299F2M WHAM8 Solar, LLCWareham, MA6 GWhNov 2021Dec 2024 Solar
28 Livermore Hill Road Solar28 Livermore Hill Road Solar, LLCWestminster, MA7 GWhMay 2020Dec 2025 Solar
276 Federal Rd(CSG)276FED WHAM8 Solar, LLCCarver, MA10 GWhOct 2021Dec 2024 Solar
265 Pleasant Solar NG, LLCNuGen Capital ManagementLunenburg, MA1 GWhJun 2014Dec 2025 Solar
205 Sturbridge AAltus Power America Management, LLCBrimfield, MA4 GWhMay 2014Dec 2025 Solar
201 Sturbridge BAltus Power America Management, LLCBrimfield, MA2 GWhMay 2014Dec 2025 Solar
20 BedfordMadison Energy Investments LLCBridgewater, MA146 MWhNov 2024Dec 2025 Solar
196 Tremont St(CSG)196TRE WHAM8 Solar, LLCCarver, MA4 GWhOct 2021Dec 2024 Solar
1639 RT 29 Solar 21639 RT 29 Solar 2, LLCGloversville, NY4 GWhNov 2020Dec 2025 Solar
1639 RT 29 Solar 11639 RT 29 Solar 1, LLCGloversville, NY7 GWhNov 2020Dec 2025 Solar
160 Tihonet Rd Hybrid(CSG)160TIH WHAM8 Solar, LLCWareham, MA10 GWhNov 2021Dec 2024 Solar
158th Fighter Wing Solar Farm158th Fighter WingSouth Burlington, VT1 GWhAug 2011Dec 2025 Solar
154 D FisherGreenbacker Renewable Energy CorporationMiddleborough, MA2 GWhNov 2015Dec 2025 Solar
1519 Crandall Road1519 Crandall Road LLCTiverton, RI6 GWhNov 2020Dec 2025 Solar
15 LincolnMadison Energy Investments LLCNorfolk, MA1 GWhNov 2022Dec 2025 Solar
15 Glen Harris RDME Sandy River LLCNew Sharon, ME5 GWhMay 2024Dec 2025 Solar
126 Grove Solar LLCAltus Power America Management, LLCFranklin, MA2 GWhMay 2012Dec 2025 Solar
118 EchoMadison Energy Investments LLCMashpee, MA814 MWhJun 2023Dec 2025 Solar
115 G FisherGreenbacker Renewable Energy CorporationMiddleborough, MA2 GWhSep 2015Dec 2025 Solar
10 Briggs Solar NG, LLC (East)NuGen Capital ManagementEast Greenwich, RI8 GWhMay 2021Dec 2025 Solar
1 CommercialMadison Energy Investments LLCSharon, MA622 MWhAug 2023Oct 2025 Solar
0 MiddleMadison Energy Investments LLCChatham, MA3 GWhAug 2022Dec 2025 Solar
0 Hammond St CSG0HAM WHAM8 Solar, LLCCarver, MA14 GWhSep 2021Dec 2024 Solar
ZPD-PT Solar Project 2017-044 LLC CSGAES Distributed EnergySpencer, MA812 MWhSep 2021Dec 2025 Solar
ZPD-PT Solar Project 2017-038 Hybrid LLCAES Distributed EnergyLancaster, MA8 GWhMar 2021Dec 2025 Solar
ZPD-PT Solar Project 2017-023 LLC HybridAES Distributed EnergySouthbridge, MA4 GWhDec 2020Dec 2025 Solar : 99.9%
ZPD-PT Solar Project 2017-021 LLC HybridAES Distributed EnergyWilbraham, MA2 GWhDec 2020Dec 2025 Solar
ZPD-PT Solar Project 2017-006 LLC HybridAES Distributed EnergyWarren, MA6 GWhJun 2021Dec 2025 Solar
Yale New Haven - New LondonBloom EnergyNew London, CT14 GWhAug 2022Dec 2025 Natural Gas
Wyman HydroBrookfield White Pine Hydro LLCBingham, ME295 GWhDec 1929Dec 2025 Water
WYM 1250 Palmer LLCCVI CleanCapital Solar 6Palmer, MA1 GWhAug 2013Dec 2025 Solar
Wrightsville Hydro PlantWashington Electric Coop - (VT)Montpelier, VT374 MWhAug 1985Dec 2025 Water
Worumbo Hydro StationEagle Creek Renewable Energy, LLCLisbon Falls, ME74 GWhJan 1989Dec 2025 Water
Worcester LandfillCity of Worcester DPW - (MA)Worcester, MA8 GWhApr 2017Dec 2025 Solar
Woods Hill SolarWoods Hill Solar, LLCPomfret, CT22 GWhNov 2018May 2026 Solar
Woodland Avenue Solar 1Woodland Avenue Solar 1, LLCSeekonk, MA9 GWhJul 2020Dec 2025 Solar
Woodchuck Solar, LLC CSG38 Degrees North, LLCSpencer, MA2 GWhNov 2017Dec 2025 Solar
WoburnGreenbacker Renewable Energy CorporationWoburn, MA2 GWhNov 2020Dec 2025 Solar
Winslow PV - BD Solar 2 LLCBD Solar 2 LLCWinslow, ME10 GWhJun 2022Dec 2025 Solar
Wind Colebrook SouthWind Colebrook SouthColebrook, CT11 GWhOct 2015May 2026 Wind
Winchendon SolarAltus Power America Management, LLCWinchendon, MA3 GWhMar 2014Dec 2025 Solar
Winchendon Landfill SolarOnyx Asset Services GroupWinchendon, MA3 GWhSep 2018Dec 2024 Solar
Wilson Solar (MA)RWE Clean EnergySpencer, MA870 MWhMay 2013Dec 2025 Solar
Wilson Solar (CT)Ecos Energy LLCLebanon, CT2 GWhFeb 2018Dec 2025 Solar
Wilmington SolarMN8 Energy LLCWilmington, MA2 GWhOct 2015Dec 2025 Solar
Wilmarth SolarWilmarth Lane Solar 1, LLCPlainville, MA8 GWhJan 2020Dec 2024 Solar
Williamsville Hybrid CSG147 Williamsville Solar 1, LLCHubbardston, MA9 GWhAug 2021Dec 2024 Solar
Williamstown SolarCVI CleanCapital Solar 1 LLCWilliamstown, VT2 GWhNov 2012Dec 2025 Solar
Williamsburg Solar LLC VNEM CSGTesla Inc.Haydenville, MA1 GWhJan 2016Dec 2025 Solar
WilliamsburgAES Distributed EnergyGoshen, MA6 GWhJun 2019Dec 2025 Solar
Williams RdAES Distributed EnergyRansomville, NY6 GWhAug 2021Dec 2025 Solar
Williams HydroBrookfield White Pine Hydro LLCSolon, ME64 GWhDec 1938Dec 2025 Water
Williams College - Campus CHPPresident & Trustees of Williams CollegeWilliamstown, MA3 GWhFeb 2003Dec 2025 Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
William F Wyman HybridFPL Energy Wyman LLCYarmouth, ME339 GWhDec 1956May 2026 Residual Fuel Oil : 99.6%
Wilkins StationTown of Marblehead - (MA)Marblehead, MA32 MWhOct 1975Dec 2025 Distillate Fuel Oil
WilderGreat River Hydro, LLCHartford, VT134 GWhOct 1950Dec 2025 Water
Wilbur Woods Solar LLCAES Distributed EnergyOrange, MA8 GWhAug 2021Dec 2025 Solar
WilbrahamBWC East Brook, LLCWilbraham, MA6 GWhNov 2020Dec 2025 Solar
White Rock Road LLCWhite Rock Road LLCWesterly, RI11 GWhNov 2022Dec 2025 Solar
White LakeGranite Shore PowerTamworth, NH484 MWhJun 1968Dec 2024 Jet Fuel
White Brook Renewables PVWhite Brook Renewables LLCWest Greenwich, RI7 GWhNov 2024Dec 2025 Solar
Whitcomb Solar FarmERWR Whitcomb Farm Solar LLCEssex Junction, VT3 GWhSep 2014Dec 2025 Solar
Wheelabrator SaugusWheelabrator Environmental SystemsSaugus, MA180 GWhJul 1985May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator North AndoverWheelabrator Environmental SystemsNorth Andover, MA240 GWhApr 1985May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator Millbury FacilityWheelabrator Environmental SystemsMillbury, MA288 GWhAug 1987May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator LisbonWheelabrator Environmental SystemsLisbon, CT101 GWhSep 1995May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator Concord FacilityWheelabrator Environmental SystemsConcord, NH93 GWhMar 1989May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Wheelabrator BridgeportWheelabrator Environmental SystemsBridgeport, CT430 GWhJun 1988May 2026 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Whatley RenewablesWhatley Renewables, LLCWhatley, MA2 GWhSep 2020Dec 2025 Solar
Whately SolarCitizens Enterprises CorporationWhately, MA2 GWhFeb 2013Dec 2025 Solar
WeybridgeGreen Mountain Power CorpWeybridge, VT10 GWhJan 1951Dec 2025 Water
Westtown CSGAltus Power America Management, LLCWesttown, NY3 GWhApr 2019Dec 2025 Solar
Westport Stone & Sand Solar (CSG)AES Clean EnergyWestport, MA7 GWhFeb 2024Dec 2025 Solar
Westport MA 2 Community SolarNavisun LLCWestport, MA2 GWhAug 2016Dec 2025 Solar
Westport MA 1 Community SolarNavisun LLCWestport, MA2 GWhAug 2016Dec 2025 Solar
Westport (MA)Sunrise on Drift Rd. LLCWestport, MA4 GWhSep 2020Dec 2024 Solar
Westport Community Solar GardenBWC Bass River LLCWestport, MA4 GWhJun 2017Dec 2024 Solar
Westport B Community Solar GardenBWC Hamilton Brook LLCWestport, MA8 GWhOct 2018Dec 2025 Solar
Weston Landfill SolarAmeresco, Inc - WestonWeston, MA3 GWhFeb 2016Dec 2025 Solar
Weston HydroBrookfield White Pine Hydro LLCSkowhegan, ME57 GWhDec 1919Dec 2025 Water
Westminster Renewables, LLC CSGWestminster Renewables, LLCWestminster, MA2 GWhSep 2018Dec 2025 Solar
WestminsterMN8 Energy LLCWestminster, VT2 GWhNov 2016Dec 2025 Solar
WesthamptonSunrise on Montague Rd. LLCWesthampton, MA7 GWhNov 2020Dec 2024 Solar
Westford Solar ParkMN8 Energy LLCWestford, MA4 GWhMar 2012Dec 2025 Solar
Westbrook Energy Center Power PlantWestbrook Energy CenterWestbrook, ME4 TWhApr 2001May 2026 Natural Gas

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