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 801 to 900 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
ME Novel Lighthouse - Penobscot CSGLuminace Sunbeam Development Holdings, LLCPatten, ME4 GWhAug 2024Dec 2025 Solar
MA-Dighton-AMA CS Dighton, LLCDighton, MA6 GWhMay 2024Dec 2025 Solar
MA CS Uxbridge Community SolarMA CS Uxbridge, LLCUxbridge, MA7 GWhJan 2023Dec 2025 Solar
Town of Ware - Canadian Tree(CSG)MA CS Ware West, LLCWare, MA2 GWhNov 2021Dec 2024 Solar
Unity SolarMadison Energy Holdings LLCUnity, ME7 GWhNov 2021Dec 2025 Solar
Hartland SolarMadison Energy Holdings LLCHartland, ME7 GWhNov 2021Dec 2025 Solar
3ColtonMadison Energy Holdings LLCMillbury, MA5 GWhJun 2023Dec 2025 Solar
Raboth - Marion DriveMadison Energy Holdings LLCKingston, MA4 GWhFeb 2021Dec 2025 Solar
NortonMadison Energy Holdings LLCNorton, MA2 GWhFeb 2023Dec 2025 Solar
IOS - MEW Phase 1Madison Energy Holdings LLCMadison, ME1 GWhDec 2016Dec 2024 Solar
Becton Dickinson Ground & Roof TopMadison Energy Investments LLCNorth Canaan, CT3 GWhFeb 2018Dec 2025 Solar
Hardwick-Athol & Eagle HillMadison Energy Investments LLCHardwick, MA2 GWhJun 2015Sep 2025 Solar
700 BinnewaterMadison Energy Investments LLCRosendale, NY2 GWhAug 2022Dec 2025 Solar
0 MiddleMadison Energy Investments LLCChatham, MA3 GWhAug 2022Dec 2025 Solar
15 LincolnMadison Energy Investments LLCNorfolk, MA1 GWhNov 2022Dec 2025 Solar
665 Scenic HighwayMadison Energy Investments LLCBourne, MA89 MWhNov 2022Dec 2025 Solar
BroadheadMadison Energy Investments LLCWaterville, ME7 GWhFeb 2023Dec 2025 Solar
1 CommercialMadison Energy Investments LLCSharon, MA622 MWhAug 2023Oct 2025 Solar
5 BerryMadison Energy Investments LLCPlainsville, MA8 GWhAug 2023Dec 2025 Solar
FarmingtonMadison Energy Investments LLCFarmington, ME7 GWhNov 2023Dec 2025 Solar
Barefoot SolarMadison Energy Investments LLCFairfield, ME6 GWhNov 2022Dec 2025 Solar
WaterboroMadison Energy Investments LLCEast Waterboro, ME3 GWhJun 2023Dec 2024 Solar
118 EchoMadison Energy Investments LLCMashpee, MA814 MWhJun 2023Dec 2025 Solar
20 BedfordMadison Energy Investments LLCBridgewater, MA146 MWhNov 2024Dec 2025 Solar
SP-339 Mechanic FallsMadison Energy Investments LLCMechanic Falls, ME1 GWhNov 2024Dec 2025 Solar
SP-231 CliftonMadison Energy Investments LLCClifton, ME5 GWhNov 2024Dec 2025 Solar
Roosevelt TrailMadison Energy Investments LLCWindham, ME1 GWhNov 2024Dec 2025 Solar
376 NashMadison Energy Investments LLCNew Bedford, MA17 MWhNov 2024Dec 2025 Solar
AugustaMaine DG Solar Augusta, LLCAugusta, ME5 GWhFeb 2022Dec 2025 Solar
Baldwin (ME)Maine DG Solar Baldwin, LLCWest Baldwin, ME10 GWhFeb 2022Dec 2025 Solar
Harmony Solar (ME)Maine DG Solar Harmony, LLCHarmony, ME9 GWhJul 2022Dec 2025 Solar
MonmouthMaine DG Solar Monmouth, LLCMonmouth, ME9 GWhFeb 2022Dec 2025 Solar
Pittsfield Solar (N. Main St)Maine DG Solar Pittsfield, LLCPittsfield, ME8 GWhSep 2023Dec 2025 Solar
MMWAC Resource Recovery FacilityMaine Waste to EnergyAuburn, ME8 GWhMay 1992May 2026 Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.8%
Manchester StreetManchester Street, LLC.Providence, RI2 TWhAug 1995May 2026 Natural Gas : 92.2% Distillate Fuel Oil : 7.8%
Manville Hill Road SolarManville Hill Road Solar LLCCumberland, RI7 GWhApr 2021Dec 2025 Solar
Maple(CSG)Maple Street Solar 1, LLCBellingham, MA7 GWhOct 2021Dec 2024 Solar
Syncarpha FreetownMarie's Way Solar I, LLCFreetown, MA6 GWhOct 2016Dec 2025 Solar
Marlborough SolarMarlborough Solar, LLCMilton, NY3 GWhFeb 2021Dec 2025 Solar
ME - Novel (Lighthouse Ph I) Mars HillMars Hill Road Solar Farm, LLCWestfield, ME4 GWhJul 2024Dec 2025 Solar
Freetown SolarMass Solar, LLCFreetown, MA6 GWhFeb 2015Dec 2025 Solar
North BrookfieldMass Solar, LLCNorth Brookfield, MA4 GWhMay 2014Dec 2025 Solar
DartmouthMass Solar, LLCDartmouth, MA6 GWhMar 2014Dec 2025 Solar
Braley Road 2Mass Solar, LLCFreetown, MA4 GWhFeb 2015Dec 2025 Solar
M Street JetMassachusetts Bay Trans AuthBoston, MA294 MWhApr 1979Dec 2025 Kerosene
Bridgewater Complex Co-Generation PlantMassachusetts Department of CorrectionBridgewater, MA1 GWhOct 2015Dec 2025 Natural Gas
Haverhill Solar Power ProjectMassachusetts Electric CoHaverhill, MA1 GWhNov 2010Dec 2025 Solar
NEDC Solar SiteMassachusetts Electric CoWhitinsville, MA953 MWhMay 2010Dec 2025 Solar
Dorchester Solar SiteMassachusetts Electric CoDorchester, MA2 GWhDec 2011Dec 2025 Solar
Mass Inst Tech Cntrl Utilities/Cogen PltMassachusetts Inst of TechCambridge, MA209 GWhMay 1995Dec 2025 Natural Gas
Berkshire Wind Power ProjectMassachusetts Mun Wholes Electric CoLanesboro, MA32 GWhApr 2011May 2026 Wind
MMWEC Simple Cycle Gas TurbineMassachusetts Mun Wholes Electric CoPeabody, MA8 GWhJun 2024Dec 2025 Distillate Fuel Oil : 69.0% Natural Gas : 31.0%
Stony BrookMassachusetts Mun Wholes Electric CoLudlow, MA164 GWhOct 1981May 2026 Distillate Fuel Oil : 61.3% Natural Gas : 38.7%
SELCO Community SolarMassachusetts Mun Wholes Electric CoShrewsbury, MA5 GWhMay 2018Dec 2025 Solar
Cosgrove Intake and Power StationMassachusetts Water Res AuthClinton, MA646 MWhDec 1968Jan 2025 Water
Oakdale Power StationMassachusetts Water Res AuthWest Boylston, MA1 GWhApr 1951Dec 2025 Water
Deer Island Treatment PlantMassachusetts Wtr Rauth-Deer IWinthrop, MA33 GWhJul 1995May 2026 Other Biomass Gas : 82.5% Distillate Fuel Oil : 13.1% Wind : 2.7% Solar : 1.8%
MasspowerMasspowerIndian Orchard, MA442 GWhJun 1993Dec 2025 Natural Gas
Medical Area Total Energy PlantMATEP LLCBoston, MA318 GWhDec 1979Dec 2024 Natural Gas : 98.3% Distillate Fuel Oil : 1.7%
Hartford Landfill Solar EGFMaterials Innovation Recycling AuthorityHartford, CT1 GWhMay 2014Dec 2024 Solar
Derby HydroMcCallum Enterprises I LPShelton, CT23 GWhDec 1988Dec 2025 Water
ME CDG 004ME CDG 004 LLCBangor, ME3 GWhNov 2024Dec 2025 Solar
ME CDG 005ME CDG 005 LLCVeazie, ME3 GWhNov 2024Dec 2025 Solar
ME Fort Fairfield Solar PlantME Fort Fairfield LLCPresque Isle, ME4 GWhNov 2024Dec 2025 Solar
15 Glen Harris RDME Sandy River LLCNew Sharon, ME5 GWhMay 2024Dec 2025 Solar
Medway GridMedway Grid LLCMedway, MA20 GWh-May 2026 Electricity used for energy storage
Lockwood Hydroelectric FacilityMerimil Ltd PartnershipWaterville, ME13 GWhSep 1985Dec 2025 Water
Merrimack Solar Farm, LLCMerrimack Solar FarmMerrimack, NH3 GWhDec 2018Dec 2025 Solar
Messalonskee 3Messalonskee Stream Hydro LLCOakland, ME4 GWhDec 1917Dec 2025 Water
Messalonskee 5Messalonskee Stream Hydro LLCWaterville, ME4 GWhDec 1934Dec 2025 Water
Messalonskee 2 (Oakland)Messalonskee Stream Hydro LLCOakland, ME7 GWhDec 1923Dec 2025 Water
Goodwin HydroelectricMetropolitan Dist of HartfordW. Hartland, CT8 GWhMar 1986Oct 2025 Water
MEVS Clark LLCMEVS Clark LLCBingham, ME6 GWhSep 2023Dec 2025 Solar
MEVS DOT 109MEVS DOT, LLCAugusta, ME4 GWhJun 2023Dec 2025 Solar
MEVS WaterhouseMEVS LLCScarborogh, ME3 GWhNov 2024Dec 2025 Solar
Middlebury CollegeMiddlebury College BiomassMiddlebury, VT2 GWhDec 1979May 2026 Wood/Wood Waste Solids : 60.7% Natural Gas : 39.3%
MiddletownMiddletown Power LLCMiddletown, CT33 GWhSep 1958Dec 2024 Residual Fuel Oil : 60.6% Natural Gas : 39.3%
Dynamic Energy CT STAGMilford Pepes Farm Road Solar LLCMilford, CT2 GWhJul 2023Dec 2024 Solar
Milford Power ProjectMilford Power Co LLCMilford, CT3 TWhJan 2004May 2026 Natural Gas
Milford Power LPMilford Power LLCMilford, MA253 GWhFeb 1993Dec 2025 Natural Gas
Millbury MA #1092Millbury MA #1092 LLCMillbury, MA2 GWhMay 2019Dec 2025 Solar
Millennium PowerMillennium Power Company, LLCCharlton, MA995 GWhMar 2001May 2026 Natural Gas
Millis MA 1Millis MA 1 LLCMillis, MA2 GWhOct 2018Dec 2025 Solar
Milo CSGMilo CSG, LLCMilo, ME7 GWhJan 2022Dec 2025 Solar
MM Taunton EnergyMM Taunton Energy LLCTaunton, MA7 GWhAug 1997Dec 2025 Landfill Gas
Bridgewater Solar CSGMN8 Energy LLCBridgewater, MA4 GWhJul 2015Dec 2025 Solar
Wilmington SolarMN8 Energy LLCWilmington, MA2 GWhOct 2015Dec 2025 Solar
Deerfield CSG SolarMN8 Energy LLCDeerfield, MA4 GWhNov 2017Dec 2025 Solar
Dry Bridge Solar (Brown University)MN8 Energy LLCNorth Kingstown, RI64 GWhOct 2023May 2026 Solar
Westford Solar ParkMN8 Energy LLCWestford, MA4 GWhMar 2012Dec 2025 Solar
Barrett PVMN8 Energy LLCOxford, MA17 GWhOct 2016Dec 2025 Solar
Grafton PVMN8 Energy LLCGrafton, MA4 GWhSep 2016Dec 2025 Solar
Fall River Solar CSGMN8 Energy LLCFall River, MA2 GWhJan 2013Dec 2025 Solar
WestminsterMN8 Energy LLCWestminster, VT2 GWhNov 2016Dec 2025 Solar
Stone Hill Solar CSGMN8 Energy LLCNorth Easton, MA2 GWhJun 2014Dec 2025 Solar
Holliston Solar CSGMN8 Energy LLCHolliston, MA1 GWhJun 2015Dec 2025 Solar
Rockland Solar CSGMN8 Energy LLCRockland, MA2 GWhNov 2013Dec 2025 Solar
Antares-GRE 314 East Lyme LLCMN8 Energy LLCEast Lyme, CT4 GWhMay 2014May 2026 Solar
Fairhaven C CSGMN8 Energy LLCFairhaven, MA2 GWhApr 2017Dec 2025 Solar
West Bridgewater AB CSGMN8 Energy LLCWest Bridgewater, MA3 GWhMay 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