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 401 to 500 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
River RoadNorridgewock River Road Solar, LLCNorridgewock, ME8 GWhFeb 2022Dec 2025 Solar
Rising PaperAltus Power America Management, LLCGreat Barrington, MA3 GWhApr 2016Dec 2025 Solar
Ring RoadGreenbacker Renewable Energy CorporationPlympton, MA2 GWhMay 2025Dec 2025 Solar
Ridgewood Providence PowerRhode Island LFG GencoJohnston, RI4 GWhJul 2005Dec 2025 Landfill Gas
Richmond NMCAAES Distributed EnergyWood River Junction, RI6 GWhNov 2018May 2026 Solar
Richmond HillGreenbacker Renewable Energy CorporationRichmond, ME3 GWhNov 2023Dec 2025 Solar
Rhode Island State Energy CenterRISEC Operating ServicesJohnston, RI4 TWhSep 2002Apr 2026 Natural Gas
Rhode Island Solar Renewable Energy IV,Rhode Island Solar Renewable Energy IV, LLCTiverton, RI18 GWhNov 2023Dec 2025 Solar
Rhode Island HospitalRhode Island HospitalProvidence, RI53 GWhSep 1974May 2026 Natural Gas : 87.3% Residual Fuel Oil : 12.7%
RGS-Rutland VNM SREC II Project (MA)TerraForm Solar XVII, LLCRutland, MA3 GWhOct 2015Dec 2025 Solar
Renew Canal 1 CSG LLCNRG Renew Canal 1 LLCSandwich, MA2 GWhMay 2017Dec 2024 Solar
Rehoboth SolarCitizens Enterprises CorporationRehoboth, MA3 GWhNov 2013Dec 2025 Solar
Regional Waste SystemsEcomainePortland, ME87 GWhMay 1988May 2026 Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7%
ReEnergy Stratton LLCReEnergy Stratton LLCStratton, ME200 GWhOct 1989Dec 2025 Wood/Wood Waste Solids
ReEnergy Livermore FallsReEnergy Livermore FallsLivermore Falls, ME274 GWhJul 1992Dec 2025 Wood/Wood Waste Solids
Redman South Community SolarAES Distributed EnergyBrockport, NY8 GWhJan 2022Jun 2025 Solar
Redman North Community SolarAES Distributed EnergyBrockport, NY106 MWhJan 2022Dec 2025 Solar
Redbrook Community Solar 1Redbrook Solar 1, LLCPlympton, MA1 GWhSep 2017Dec 2025 Solar
Record Hill WindRecord Hill Wind LLCRoxbury, ME110 GWhDec 2011Dec 2025 Wind
RavenbrookCaptona Ravenbrook LLCCarver, MA6 GWhNov 2013Dec 2025 Solar
RandolphAltus Power America Management, LLCRandolph, MA6 GWhOct 2017Dec 2025 Solar
Randall Solar Project HybridAES Distributed EnergyBerlin, MA9 GWhJun 2021Dec 2025 Solar
Randall Road Solar IIGreen Street Power PartnersBallston Spa, NY3 GWhJun 2024Dec 2025 Solar
Randall Road Solar IGreen Street Power PartnersBallston Spa, NY5 GWhJun 2024Dec 2025 Solar
Rand Whitney CHP PlantRand Whitney Containerboard L.P.Montville, CT132 GWhMar 2005May 2026 Natural Gas
Rainbow (CT)Farmington River Power CompanyWindsor, CT22 GWhNov 1925May 2026 Water
Rail TrailAltus Power America Management, LLCGreat Barrington, MA3 GWhApr 2016Dec 2025 Solar
Raffia Road Solar ProjectNJR Clean Energy Ventures CorporationEnfield, CT7 GWhNov 2024Dec 2025 Solar
Raboth - Marion DriveMadison Energy Holdings LLCKingston, MA4 GWhFeb 2021Dec 2025 Solar
Quittacas Pond SolarRWE Clean EnergyRochester, MA5 GWhNov 2013Dec 2025 Solar
Quinebaug SolarQuinebaug Solar, LLCCanterbury, CT74 GWhNov 2021May 2026 Solar
Quinebaug Lower ProjectQuinebaug Associates LLCBrooklyn, CT5 GWhMar 1990Dec 2025 Water
QuarryNautilus Solar SolutionsNorth Berwick, ME10 GWhNov 2022Dec 2025 Solar
Putts BridgeCentral Rivers Power MA, LLCLudlow, MA11 GWhDec 1917Dec 2025 Water
Pumpkin HillKEI (Maine) Power Management (II) LLCLowell, ME3 GWhFeb 1987Dec 2025 Water
Pulpit HillLSE Fornax LLCAmherst, MA7 GWhJun 2019Dec 2025 Solar
ProctorGreen Mountain Power CorpProctor, VT28 GWhJul 1905Dec 2025 Water
Princeton Wind FarmTown of Princeton - (MA)Princeton, MA4 GWhDec 2009Dec 2025 Wind
Pratt & WhitneyUnited TechnologiesEast Hartford, CT76 GWhDec 1991May 2026 Natural Gas
Powder HillLSE Delphinus LLCEnfield, CT3 GWhNov 2020Dec 2024 Solar
Potter Station 2Town of Braintree - (MA)Braintree, MA41 GWhJun 1963Dec 2025 Natural Gas : 61.2% Distillate Fuel Oil : 38.8%
Pontook Hydro FacilityPontook Operating LPDummer, NH51 GWhNov 1986Dec 2025 Water
Pomham Islander (CSG)Nautilus Solar SolutionsNorth Smithfield, RI1 GWhJun 2025Dec 2025 Solar
Plympton Main Street Solar, LLCREA Investments, LLCPlympton, MA7 GWhNov 2023Dec 2025 Solar
Plympton Lake Street SolarREA Investments, LLCPlympton, MA2 GWhNov 2022Dec 2025 Solar
Plymouth SolarNSTAR Electric CompanyPlymouth, MA2 GWhMay 2018Dec 2025 Solar
Plymouth Site 1CleanCapital HoldingsPlympton, MA7 GWhSep 2013Dec 2025 Solar
Pleasantdale Road Community SolarPleasantdale Road Solar, LLCRutland, MA1 GWhAug 2017Dec 2025 Solar
Pleasant StreetGreenbacker Renewable Energy CorporationWilton, ME5 GWhNov 2023Dec 2025 Solar
Platt HillLSE Pictor LLCWinchester, CT3 GWhDec 2021Dec 2025 Solar
Plainfield Solar 2Ecos Energy LLCPlainfield, CT2 GWhMar 2020Dec 2025 Solar
Plainfield Solar 1Ecos Energy LLCPlainfield, CT2 GWhDec 2019Dec 2025 Solar
Plainfield Renewable Energy LLCPlainfield Renewable Energy, LLCPlainfield, CT245 GWhNov 2013Dec 2025 Wood/Wood Waste Solids : 99.3% Other Biomass Liquids : 0.7%
Plainfield PikeCaptona Plainfield Pike Johnston LLCJohnston, RI4 GWhMay 2019Dec 2025 Solar
Plainfield Community Solar LLCPlainfield Solar LLCPlainfield, MA3 GWhJan 2019Dec 2025 Solar
PittsfordGreen Mountain Power CorpPittsford, VT8 GWhJan 1914Dec 2025 Water
Pittsfield Solar (N. Main St)Maine DG Solar Pittsfield, LLCPittsfield, ME8 GWhSep 2023Dec 2025 Solar
Pittsfield Solar LLCPittsfiled Solar LLCPittsfield, ME15 GWhNov 2017Dec 2025 Solar
Pittsfield HydroKEI (Maine) Power Management (II) LLCBurnham, ME3 GWhJun 1986Dec 2025 Water
Pittsfield Generating LPPittsfield Generating Company, LPPittsfield, MA136 GWhJun 1990May 2026 Natural Gas : 96.9% Distillate Fuel Oil : 3.1%
Pittsfield 44 - M&W PVNSTAR Electric CompanyPittsfield, MA2 GWhJul 2018Dec 2025 Solar
Pisgah Mountain WindPisgah Mountain, LLCClifton, ME28 GWhNov 2016Dec 2025 Wind
Pine Hill WestportGreenbacker Renewable Energy CorporationWestport, MA3 GWhMay 2025Dec 2025 Solar
Pine HillOnsite Partners, LLCJohnston, RI8 GWhJul 2020Dec 2025 Solar
Pike Road Solar (NY)RPNY Solar 6, LLCBatavia, NY5 GWhJun 2024Dec 2025 Solar
Pfizer Groton PlantPfizer IncGroton, CT75 GWhDec 1947May 2026 Natural Gas : 88.5% Distillate Fuel Oil : 11.5%
Pfizer Groton Fuel CellGroton Fuel Cell 1 LLCGroton, CT30 GWhSep 2016Dec 2024 Natural Gas
Peterson Road SolarPeterson Road Solar, LLCPalmer, MA4 GWhMar 2017Dec 2025 Solar
PetersonGreen Mountain Power CorpMilton, VT25 GWhJan 1948Dec 2025 Water
Peru (MA)Sunrise on West Main Rd. LLCPeru, MA5 GWhOct 2020Dec 2024 Solar
Perkins Road Belfast Solar, LLCREA Investments, LLCBelfast, ME9 GWhMay 2021Dec 2025 Solar
Pepperidge Farm BloomfieldPepperidge Farm, Inc.- BloomfieldBloomfield, CT15 GWhJul 2008Dec 2024 Natural Gas
Pepperell Hydro Power PlantEagle Creek Renewable Energy, LLCPepperell, MA2 GWhDec 1919May 2026 Water
Penobscot Narrows Solar IPenobscot Narrows Solar I LLCBucksport, ME7 GWhMay 2024Dec 2025 Solar
Pendleton Solar 1Pendleton Solar 1, LLCLockport, NY7 GWhSep 2020Dec 2025 Solar
Penacook Upper Falls HydroBriar-Hydro AssociatesPenacook, NH11 GWhNov 1986Dec 2025 Water
Penacook Lower FallsBriar-Hydro AssociatesBoscawen, NH16 GWhJul 1983Dec 2025 Water
Pembroke HydroEagle Creek Renewable Energy, LLCSuncook, NH7 GWhNov 1985Dec 2025 Water
Pejepscot Hydroelectric ProjectTopsham Hydro PartnersTopsham, ME50 GWhOct 1987Dec 2025 Water
Passadumkeag Windpark LLCSouthern Power CoGreenbush, ME138 GWhJun 2016May 2026 Wind
Partridgeville Hybrid CSGPartridgeville Road Solar 1, LLCAthol, MA6 GWhDec 2019Dec 2024 Solar
Partridge SolarSoCore Energy LLCLanesborough, MA8 GWhAug 2022Dec 2025 Solar
Partridge Hill Solar HybridAES Distributed EnergyCharlton, MA3 GWhJun 2020Dec 2025 Solar
Park StGreenbacker Renewable Energy CorporationRutland, VT2 GWhNov 2014Dec 2025 Solar
Park SolarEcos Energy LLCWoodbridge, CT1 GWhNov 2023Dec 2025 Solar
Palombo Solar, LLC CSG38 Degrees North, LLCUxbridge, MA3 GWhNov 2017Dec 2025 Solar
Palombo B Solar, LLC CSG38 Degrees North, LLCUxbridge, MA2 GWhNov 2017Dec 2025 Solar
Palmyra PV - BD Solar Palmyra LLCBD Solar Palmyra LLCPalmyra, ME8 GWhMay 2022Dec 2025 Solar
Palmer LandfillSyncarpha Bondsville, LLCPalmer, MA6 GWhNov 2016Dec 2025 Solar
PalmerAES Distributed EnergyPalmer, MA6 GWhSep 2019Dec 2025 Solar
Padelford SolarRWE Clean EnergyBerkley, MA4 GWhNov 2012Dec 2025 Solar
Oxford SolarCitizens Enterprises CorporationOxford, MA5 GWhJan 2020Dec 2025 Solar
Oxford PV - BD Solar Oxford LLCBD Solar Oxford LLCOxford, ME13 GWhMay 2021Dec 2025 Solar
OxfordCVI CleanCapital Solar 6Oxford, MA3 GWhJun 2014Dec 2025 Solar
OverlookWestbound Solar 3, LLCWestminster, MA7 GWhFeb 2023Dec 2025 Solar
Our KatahdinGreenbacker Renewable Energy CorporationMillenocket, ME6 GWhNov 2024Dec 2025 Solar
Ottauquechee HydroGreen Mountain Power CorpN. Hartland, VT3 GWhMar 1983Dec 2025 Water
Otis HydroEagle Creek Renewable Energy, LLCLivermore Falls, ME38 GWhDec 1984May 2026 Water
OSG Solar 1 LLCNavisun LLCOrange, MA3 GWhJun 2012Dec 2025 Solar
Orono Hydro StationBrookfield Black Bear Hydro, LLCOrono, ME6 GWhDec 2008Dec 2025 Water

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