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 201 to 300 of 1,367
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Connecticut CollegeBloom EnergyNew London, CT10 GWhAug 2019Dec 2025 Natural Gas
CoreSite - SomervilleBloom EnergySomerville, MA28 GWhAug 2020Dec 2025 Natural Gas
Medtronic - New HavenBloom EnergyNorth Haven, CT18 GWhSep 2020Dec 2025 Natural Gas
Equinix - BillericaBloom EnergyBillerica, MA14 GWhAug 2021Dec 2025 Natural Gas
Boltonville Hydro AssociatesBoltonville Hydro AssociatesBoltonville, VT2 GWhJun 1984Dec 2025 Water
Boott HydropowerBoott Hydro, LLC - HybridLowell, MA61 GWhSep 1985Dec 2025 Water
Boston Medical Center CHP PlantBoston Medical CenterBoston, MA14 GWhMar 2017Dec 2025 Natural Gas
Bradford SolarBradford Solar, LLCHaverhill, MA8 GWhMar 2017Dec 2024 Solar
Brassua Hydroelectric ProjectBrassua Hydroelectric LPRockwood, ME13 GWhAug 1989Aug 2025 Water
Breckenridge SolarBreckenridge Street Solar 1, LLCPalmer, MA7 GWhOct 2020Dec 2024 Solar
Rolfe Canal HydroBriar-Hydro AssociatesPenacook, NH16 GWhNov 1987Dec 2025 Water
Penacook Lower FallsBriar-Hydro AssociatesBoscawen, NH16 GWhJul 1983Dec 2025 Water
Penacook Upper Falls HydroBriar-Hydro AssociatesPenacook, NH11 GWhNov 1986Dec 2025 Water
Bridgeport Energy ProjectBridgeport Energy LLCBridgeport, CT3 TWhMay 1998May 2026 Natural Gas
Bridgeport Fuel Cell, LLCBridgeport Fuel Cell, LLCBridgeport, CT90 GWhNov 2013Dec 2025 Natural Gas
Bridgewater Power LPBridgewater Power Co LPBridgewater, NH103 GWhJul 1987Dec 2025 Wood/Wood Waste Solids : 99.8%
Brockelman Road Solar 2Brockelman Road Solar 2, LLCLancaster, MA2 GWhJul 2021Dec 2025 Solar
Brook Street Solar 1 CSGBrook Street Solar 1, LLCPlympton, MA3 GWhJul 2017Dec 2025 Solar
Stillwater Hydro StationBrookfield Black Bear Hydro, LLCStillwater, ME6 GWhDec 1912Dec 2025 Water
Milford Hydro StationBrookfield Black Bear Hydro, LLCMilford, ME36 GWhJun 1941Dec 2025 Water
Ellsworth Hydro StationBrookfield Black Bear Hydro, LLCEllsworth, ME18 GWhJun 1924Dec 2025 Water
Medway HydroBrookfield Black Bear Hydro, LLCMedway, ME23 GWhDec 1922Dec 2025 Water
Orono BBrookfield Black Bear Hydro, LLCOrono, ME17 GWhOct 2013Dec 2025 Water
Stillwater BBrookfield Black Bear Hydro, LLCOld Town, ME9 GWhAug 2013Dec 2025 Water
West Enfield HydroBrookfield Black Bear Hydro, LLCWest Enfield, ME70 GWhMar 1988Dec 2025 Water
Orono Hydro StationBrookfield Black Bear Hydro, LLCOrono, ME6 GWhDec 2008Dec 2025 Water
Rumford Falls Hydro FacilityBrookfield Power New EnglandRumford, ME212 GWhDec 1917Dec 2025 Water
HiramBrookfield White Pine Hydro LLCHiram, ME31 GWhDec 1916Dec 2025 Water
North GorhamBrookfield White Pine Hydro LLCGorham, ME6 GWhDec 1924Dec 2025 Water
ShawmutBrookfield White Pine Hydro LLCShawmut, ME23 GWhDec 1912Dec 2025 Water
SkeltonBrookfield White Pine Hydro LLCDayton, ME77 GWhDec 1947Dec 2025 Water
West BuxtonBrookfield White Pine Hydro LLCBuxton, ME21 GWhDec 1903Dec 2025 Water
Harris HydroBrookfield White Pine Hydro LLCWest Forks, ME151 GWhDec 1953Dec 2025 Water
Weston HydroBrookfield White Pine Hydro LLCSkowhegan, ME57 GWhDec 1919Dec 2025 Water
Gulf IslandBrookfield White Pine Hydro LLCLewiston, ME115 GWhDec 1925Dec 2025 Water
Williams HydroBrookfield White Pine Hydro LLCSolon, ME64 GWhDec 1938Dec 2025 Water
Wyman HydroBrookfield White Pine Hydro LLCBingham, ME295 GWhDec 1929Dec 2025 Water
Aziscohos Hydroelectric ProjectBrookfield White Pine Hydro LLCWilson Mills, ME30 GWhMay 1988Dec 2025 Water
Cataract HydroBrookfield White Pine Hydro LLCSaco, ME23 GWhDec 1936Dec 2025 Water
Brunswick HydroBrookfield White Pine Hydro LLCBrunswick, ME70 GWhFeb 1982Dec 2025 Water
Bonny EagleBrookfield White Pine Hydro LLCHollis, ME31 GWhDec 1909Dec 2025 Water
Charles E MontyBrookfield White Pine Hydro LLCLewiston, ME114 GWhDec 1989Dec 2025 Water
Deer RipsBrookfield White Pine Hydro LLCAuburn, ME51 GWhDec 1902Dec 2025 Water
Bucksport Generation LLCBucksport Generation LLCBucksport, ME29 GWhJun 1965May 2026 Natural Gas : 57.8% Distillate Fuel Oil : 42.2%
Bullock Road Solar 1Bullock Road Solar 1, LLCFreetown, MA4 GWhJun 2018Dec 2025 Solar
Westport Community Solar GardenBWC Bass River LLCWestport, MA4 GWhJun 2017Dec 2024 Solar
MendonBWC Box Pond LLCMendon, MA4 GWhNov 2017Dec 2024 Solar
Dover (MA)BWC Buckmaster Pond LLCDover, MA2 GWhJul 2017Dec 2024 Solar
Adirondack A+B Community Solar GardenBWC Connecticut River LLCWestport, MA8 GWhNov 2018Dec 2024 Solar
WilbrahamBWC East Brook, LLCWilbraham, MA6 GWhNov 2020Dec 2025 Solar
BWC Gibbs BrookBWC Gibbs Brook, LLCWareham, MA7 GWhNov 2018Dec 2025 Solar
Westport B Community Solar GardenBWC Hamilton Brook LLCWestport, MA8 GWhOct 2018Dec 2025 Solar
BWC Harlow BrookBWC Harlow Brook, LLCWareham, MA2 GWhNov 2018Dec 2025 Solar
BWC Mystic RiverBWC Mystic River LLCMendon, MA2 GWhJun 2017Dec 2025 Solar
BWC Origination 18BWC Origination 18, LLCMattapoisett, MA7 GWhNov 2018Dec 2025 Solar
BWC Origination 19BWC Origination 19 LLCHopedale, MA2 GWhJul 2017Dec 2025 Solar
New Bedford (MA) PlymouthBWC Origination 4, LLCPlymouth, MA7 GWhJun 2014Dec 2025 Solar
BWC Origination 8 LLC Sturbridge 1BWC Origination 8 LLC Sturbridge 1 LLCSturbridge, MA1 GWhJul 2017Dec 2025 Solar
BWC Origination 8 LLC Sturbridge 2BWC Origination 8 LLC Sturbridge 2 LLCSturbridge, MA1 GWhAug 2017Dec 2025 Solar
BWC Pocasset RiverBWC Pocasset River, LLCWareham, MA2 GWhNov 2018Dec 2025 Solar
BWC Swan Pond River CSGBWC Swan Pond River, LLCRehoboth, MA3 GWhNov 2015Dec 2025 Solar
BWC Wareham RiverBWC Wareham River, LLCWareham, MA2 GWhNov 2018Dec 2025 Solar
Lakeville SolarC2 MA Lakeville, LLCLakeville, MA3 GWhNov 2018Dec 2025 Solar
Fore River Generating StationCalpine Fore River Energy Center, LLCNorth Weymouth, MA3 TWhJul 2003May 2026 Natural Gas : 92.7% Distillate Fuel Oil : 7.3%
Camelot Wind LLCCamelot Wind LLCPlymouth, MA2 GWhSep 2012Dec 2024 Wind
CanalCanal Generating LLCSandwich, MA546 GWhMay 1968May 2026 Residual Fuel Oil : 55.3% Natural Gas : 34.6% Distillate Fuel Oil : 10.1%
A Street 1Captona A Street 1 Johnston LLCJohnston, RI2 GWhNov 2018Dec 2025 Solar
A Street 2Captona A Street 2 Johnston LLCJohnston, RI3 GWhNov 2018Dec 2025 Solar
BerkleyCaptona Berkley LLCBerkley, MA4 GWhMar 2017Dec 2025 Solar
CantonCaptona Canton LLCCanton, MA6 GWhJul 2012Dec 2025 Solar
CarverCaptona Carver LLCNorth Carver, MA2 GWhApr 2017Dec 2025 Solar
ChicopeeCaptona Chicopee LLCChicopee, MA2 GWhMar 2017Dec 2025 Solar
HudsonCaptona Hudson LLCHudson, MA5 GWhApr 2017Dec 2025 Solar
KilvertCaptona Kilvert Street Warwick LLCWarwick, RI8 GWhNov 2018Dec 2025 Solar
Gold Meadow FarmsCaptona Lippitt Ave Cranston LLCCranston, RI27 GWhApr 2019Dec 2025 Solar
North ProvidenceCaptona N.P. LLCNorth Providence, RI3 GWhSep 2018Dec 2025 Solar
Plainfield PikeCaptona Plainfield Pike Johnston LLCJohnston, RI4 GWhMay 2019Dec 2025 Solar
RavenbrookCaptona Ravenbrook LLCCarver, MA6 GWhNov 2013Dec 2025 Solar
Golden SolarCardinal RenewablesSt. Johnsbury, VT4 GWhOct 2021Dec 2025 Solar
HSCo CHPCartier Energy, LLCHartford, CT28 GWhSep 2009Dec 2025 Natural Gas
Hartford Hospital CogenerationCartier Energy, LLCHartford, CT39 GWhJun 1988Dec 2024 Natural Gas
Maine Independence StationCasco Bay Energy Co LLCVeazie, ME1 TWhApr 2000Dec 2025 Natural Gas
MA BlackstoneCatalyze Blackstone 83 Federal Street Microgrid, LLCBlackstone, MA7 GWhJun 2022Dec 2025 Solar
Curtis Hill Solar CSGCCC Solar Holdings LLCCharlton, MA3 GWhSep 2016Dec 2024 Solar
Depot Hill Solar CSGCCC Solar Holdings LLCCharlton, MA3 GWhSep 2016Dec 2025 Solar
Franklin 1CD US Solar MT 2 LLCWrentham, MA4 GWhOct 2013Dec 2025 Solar
Franklin 2CD US Solar MT 2 LLCFranklin, MA6 GWhNov 2013Dec 2025 Solar
Grafton SolarCD US Solar MT 2 LLCGrafton, MA2 GWhSep 2013Dec 2025 Solar
True NorthCD US Solar MT1 LLCSalisbury, MA6 GWhJul 2012Dec 2025 Solar
ShafferCD US Solar MT3, LLCBillerica, MA6 GWhAug 2014Dec 2025 Solar
CCSU Co-Gen-STBY GenCentral Connecticut State UniversityNew Britain, CT10 MWhSep 1993Dec 2025 Natural Gas
Indian OrchardCentral Rivers Power MA, LLCIndian Orchard, MA3 GWhDec 1927Dec 2025 Water
DwightCentral Rivers Power MA, LLCChicopee, MA6 GWhDec 1919Dec 2025 Water
Gardners FallsCentral Rivers Power MA, LLCBuckland, MA11 GWhDec 1913Dec 2025 Water
Putts BridgeCentral Rivers Power MA, LLCLudlow, MA11 GWhDec 1917Dec 2025 Water
Garvins FallsCentral Rivers Power NH, LLCBow, NH25 GWhJul 1925Dec 2025 Water
Eastman FallsCentral Rivers Power NH, LLCFranklin, NH22 GWhJul 1937Dec 2025 Water
JackmanCentral Rivers Power NH, LLCHillsborough, NH8 GWhJan 1926Aug 2025 Water
Smith (NH)Central Rivers Power NH, LLCBerlin, NH87 GWhJul 1948Dec 2025 Water
Ayers IslandCentral Rivers Power NH, LLCBristol, NH36 GWhJul 1925Dec 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