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 Authority	ISO New England
States	Connecticut Maine Massachusetts New Hampshire New York Rhode Island Vermont
Last Update	Nov 2024
Annual Generation	102.8 TWh
Power Plants	1,487
Utilities	782
Ranked #15 out of 65 in terms of net annual generation
Ranked #11 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 57.6% Nuclear \| 25% Water \| 7.7% Other Fuel \| 4.6% Wind \| 3.3% Solar \| 1.2% Coal \| 0.1%

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Daily Net Generation for ISO New England for the past 3 Years

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Greater New Bedford LFG Utiliz. Facility	CommonWealth New Bedford Energy LLC	New Bedford, MA	20 GWh	Sep 2005	Dec 2023	Landfill Gas
UCONN Cogen Facility	University of Connecticut	Storrs, CT	124 GWh	Feb 2006	Aug 2024	Natural Gas : 99.7%
Norwich WWTP	City of Norwich - (CT)	Norwich, CT	1 MWh	Apr 2006	Mar 2024	Distillate Fuel Oil
Hull Wind II	Hull Municipal Light Plant	Hull, MA	3 GWh	Apr 2006	Apr 2023	Wind
UNH 7.9 MW Plant	Emcor Energy Services	Durham, NH	48 GWh	Aug 2006	Aug 2024	Landfill Gas : 70.9% Natural Gas : 27.3% Distillate Fuel Oil : 1.8%
Eastern Maine Medical Center	Eastern Maine Medical Center	Bangor, ME	31 GWh	Sep 2006	Aug 2024	Natural Gas
Amherst College Co Gen	Amherst College	Amherst, MA	5 GWh	Oct 2006	Dec 2023	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Jiminy Peak Wind QF	Jiminy Peak Mountain Resort, LLC	Hancock, MA	1 MWh	Jul 2007	Dec 2022	Wind
Fitchburg Gas Recovery	WM Renewable Energy LLC	Westminster, MA	31 GWh	Sep 2007	Dec 2023	Landfill Gas
Fairfield University CHP Plant	Fairfield University	Fairfield, CT	25 GWh	Sep 2007	Dec 2023	Natural Gas
Kimberly Clark-Unit 1,2,3	Kimberly-Clark Corporation	New Milford, CT	217 GWh	Mar 2008	Dec 2023	Natural Gas
New Milford Gas Recovery	WM Renewable Energy LLC	New Milford, CT	5 GWh	Apr 2008	Dec 2023	Landfill Gas
Pepperidge Farm Bloomfield	Pepperidge Farm, Inc.- Bloomfield	Bloomfield, CT	16 GWh	Jul 2008	Dec 2023	Natural Gas
Smith College Central Heating Plant	The Trustees of Smith College	Northampton, MA	15 GWh	Sep 2008	Dec 2023	Natural Gas
Beaver Ridge Wind	CPV Beaver Ridge Wind LLC	Freedom, ME	10 GWh	Oct 2008	Dec 2023	Wind
Lempster Wind LLC	Avangrid Renewables LLC	Lempster, NH	61 GWh	Nov 2008	Aug 2024	Wind
Moretown	EPP Renewable Energy	Waterbury, VT	5 GWh	Nov 2008	Dec 2023	Landfill Gas
Orono Hydro Station	Brookfield Black Bear Hydro, LLC	Orono, ME	12 GWh	Dec 2008	Dec 2023	Water
Stetson Wind I	Evergreen Wind, LLC	Danforth, ME	107 GWh	Dec 2008	Dec 2023	Wind
Wesleyan University Cogen 1	Wesleyan University	Middletown, CT	10 GWh	Jan 2009	Dec 2023	Natural Gas
Waste Management Crossroads LFGTE	WM Renewable Energy LLC	Norridgewock, ME	20 GWh	Feb 2009	Dec 2023	Landfill Gas
Frito Lay Incorporated	Frito Lay Incorporated Dayville	Dayville, CT	24 GWh	Feb 2009	Aug 2024	Natural Gas
Cellu Tissue	Dunn Paper East Hartford, LLC	East Hartford, CT	12 GWh	Apr 2009	Aug 2024	Natural Gas
Waterbury Generation	Engie North America	Waterbury, CT	40 GWh	May 2009	Dec 2023	Natural Gas : 99.7%
HSCo CHP	Cartier Energy, LLC	Hartford, CT	27 GWh	Sep 2009	Dec 2023	Natural Gas
Kibby Wind Facility	Helix Maine Wind Development, LLC	Chain of Ponds, ME	246 GWh	Sep 2009	Aug 2024	Wind
Fox Island Wind LLC	Fox Island Wind LLC	Vinalhaven, ME	6 GWh	Oct 2009	Dec 2023	Wind
MA Military Reservation Wind Project	Air Force Civil Engineer Center	Otis ANG Base Bourne, MA	10 GWh	Nov 2009	Dec 2023	Wind
Princeton Wind Farm	Town of Princeton - (MA)	Princeton, MA	3 GWh	Dec 2009	Dec 2023	Wind
Jewett City 1	Connecticut Mun Elec Engy Coop	Jewett City, CT	198 MWh	Jan 2010	Dec 2023	Distillate Fuel Oil
Stetson Wind II	Evergreen Wind, LLC	Danforth, ME	46 GWh	Feb 2010	Dec 2023	Wind
LNG 1 & 2	Connecticut Mun Elec Engy Coop	Norwich, CT	573 MWh	Mar 2010	Dec 2023	Distillate Fuel Oil
Lebanon Pines 1 & 2	Connecticut Mun Elec Engy Coop	Lebanon, CT	577 MWh	Mar 2010	Dec 2023	Distillate Fuel Oil
VPPSA Project 10	Vermont Public Power Supply Authority	Swanton, VT	908 MWh	Apr 2010	Dec 2023	Distillate Fuel Oil
GenConn Devon LLC	GenConn Devon LLC	Milford, CT	2 GWh	May 2010	Dec 2023	Kerosene : 96.0% Natural Gas : 4.0%
NEDC Solar Site	Massachusetts Electric Co	Whitinsville, MA	878 MWh	May 2010	Dec 2023	Solar
Foxwoods CoGen	Foxwoods Resort Casino	Mashantucket, CT	11 GWh	May 2010	Dec 2023	Natural Gas
Sikorsky Aircraft CHP	Sikorsky Aircraft Corporation	Stratford, CT	64 GWh	May 2010	Dec 2023	Natural Gas : 99.9%
Notus Wind 1	Notus Clean Energy LLC	E. Falmouth, MA	4 GWh	Jun 2010	Dec 2023	Wind
Bridge Street 1 & 2	Connecticut Mun Elec Engy Coop	Groton, CT	562 MWh	Jun 2010	Dec 2023	Distillate Fuel Oil
Gary Court 1 & 2	Connecticut Mun Elec Engy Coop	Groton, CT	466 MWh	Jun 2010	Dec 2023	Distillate Fuel Oil
Fort Hill 1, 2, 3 & 4	Connecticut Mun Elec Engy Coop	Uncasville, CT	742 MWh	Jul 2010	Aug 2024	Distillate Fuel Oil
Water Treatment 1 & 2	Connecticut Mun Elec Engy Coop	Groton, CT	413 MWh	Sep 2010	Aug 2024	Distillate Fuel Oil
Haverhill Solar Power Project	Massachusetts Electric Co	Haverhill, MA	1 GWh	Nov 2010	Dec 2023	Solar
Fishers Island 1	Connecticut Mun Elec Engy Coop	Fisher's Island, NY	119 MWh	Nov 2010	Dec 2023	Distillate Fuel Oil
Silver Lake Solar Photovoltaic Facility	Western Massachusetts Electric Company	Pittsfield, MA	1 GWh	Nov 2010	Dec 2023	Solar
Dartmouth Solar	Consolidated Edison Development Inc.	Dartmouth, MA	3 GWh	Feb 2011	Dec 2023	Solar
Mt Wachusett Community College	Mt Wachusett Community College	Gardner, MA	4 GWh	Feb 2011	Aug 2024	Wind
Chittenden County Solar Partners	Chittenden County Solar Partners LLC	South Burlington, VT	3 GWh	Apr 2011	Dec 2023	Solar
Berkshire Wind Power Project	Massachusetts Mun Wholes Electric Co	Lanesboro, MA	32 GWh	Apr 2011	Aug 2024	Wind
Ipswich Wind Turbine	Town of Ipswich - (MA)	Ipswich, MA	3 GWh	Apr 2011	Dec 2023	Wind
GenConn Middletown LLC	GenConn Middletown LLC	Middletown, CT	4 GWh	May 2011	Dec 2023	Kerosene : 83.6% Natural Gas : 16.4%
Rollins Wind Project	Evergreen Wind, LLC	Winn Village, ME	132 GWh	Jun 2011	Dec 2023	Wind
Kleen Energy Systems Project	Kleen Energy Systems, LLC	Middletown, CT	3 TWh	Jun 2011	Aug 2024	Natural Gas : 99.4% Distillate Fuel Oil : 0.6%
158th Fighter Wing Solar Farm	158th Fighter Wing	South Burlington, VT	1 GWh	Aug 2011	Dec 2023	Solar
Sheffield Wind	Evergreen Wind, LLC	Sheffield, VT	64 GWh	Sep 2011	Aug 2024	Wind
Southbridge Landfill Gas-to-Energy	Southbridge Recycling and Disposal Park	Southbridge, MA	12 GWh	Sep 2011	Dec 2023	Landfill Gas
Charlestown Wind Turbine	MWRA Charlestown	Charlestown, MA	1 GWh	Sep 2011	Dec 2023	Wind
Danbury Hospital Cogen Plant	Danbury Hospital	Danbury, CT	26 GWh	Oct 2011	Dec 2023	Natural Gas
Indian Orchard PV Facility	Western Massachusetts Electric Company	Springfield, MA	3 GWh	Nov 2011	Dec 2023	Solar
Holyoke Solar Cooperative at Mueller	Holyoke Solar LLC	Holyoke, MA	4 GWh	Nov 2011	Dec 2023	Solar
Spruce Mountain WInd	CPV Spruce Mountain Wind LLC	Bryant Pond, ME	53 GWh	Nov 2011	Dec 2023	Wind
Berkshire 1	PPS Berkshire Solar LLC	Sheffield, MA	2 GWh	Nov 2011	Dec 2023	Solar
Dorchester Solar Site	Massachusetts Electric Co	Dorchester, MA	181 MWh	Dec 2011	Dec 2023	Solar
Record Hill Wind	Record Hill Wind LLC	Roxbury, ME	111 GWh	Dec 2011	Dec 2023	Wind
Waste Water Treatment Plant	City of Pittsfield	Pittsfield, MA	763 MWh	Dec 2011	Dec 2022	Solar
Granite Reliable Power	NexteraEnergy	Dummer, NH	176 GWh	Jan 2012	Aug 2024	Wind
Agawam Solar	Citizens Enterprises Corporation	Agawam, MA	2 GWh	Feb 2012	Dec 2023	Solar
WED NK Green	WED NK Green LLC	North Kingstown, RI	2 GWh	Feb 2012	Dec 2023	Wind
NFM Solar Power LLC	FirstLight Power Resources, Inc. - MA	Northfield, MA	2 GWh	Feb 2012	Dec 2023	Solar
Scituate Wind	Scituate Wind LLC	Scituate, MA	2 GWh	Feb 2012	Dec 2023	Wind
433 Purchase Solar NG, LLC	NuGen Capital Management	Swansea, MA	4 GWh	Mar 2012	Dec 2023	Solar
CCSU Fuel Cell Project	New Britain Renewable Energy, LLC	New Britain, CT	10 GWh	Mar 2012	Dec 2023	Natural Gas
Fairhaven Wind	Fairhaven Wind LLC	Fairhaven, MA	3 GWh	Mar 2012	Dec 2023	Wind
Westford Solar Park	MN8 Energy LLC	Westford, MA	4 GWh	Mar 2012	Dec 2023	Solar
Dartmouth II Solar	Consolidated Edison Development Inc.	Dartmouth, MA	2 GWh	May 2012	Dec 2023	Solar
Town of Uxbridge MA at Commerce Dr	Luminace Solar Net Metering, LLC	Uxbridge, MA	3 GWh	May 2012	Dec 2023	Solar
Town of Norfolk MA at Medway Branch	Luminace Solar Massachusetts, LLC	Norfolk, MA	2 GWh	May 2012	Dec 2023	Solar
Axio Green LLC	Altus Power America Management, LLC	Greenfield Township, MA	2 GWh	May 2012	Dec 2023	Solar
126 Grove Solar LLC	Altus Power America Management, LLC	Franklin, MA	2 GWh	May 2012	Dec 2023	Solar
Easthampton Landfill-City of Easthampton	CleanCapital Holdings	Easthampton, MA	3 GWh	May 2012	Dec 2023	Solar
Acushnet AD Makepeace	CleanCapital Holdings	Wareham, MA	6 GWh	Jun 2012	Dec 2023	Solar
OSG Solar 1 LLC	Navisun LLC	Orange, MA	3 GWh	Jun 2012	Dec 2023	Solar
IKEA New Haven Rooftop PV & Fuel Cell	IKEA Property Inc	New Haven, CT	2 GWh	Jun 2012	Dec 2023	Natural Gas : 67.0% Solar : 33.0%
Acushnet Hawes Reed Road	CleanCapital Holdings	Dartmouth, MA	2 GWh	Jun 2012	Dec 2023	Solar
True North	CD US Solar MT1 LLC	Salisbury, MA	7 GWh	Jul 2012	Dec 2023	Solar
SunGen Sharon 1 LLC	SunGen Sharon 1 LLC	Sharon, VT	3 GWh	Jul 2012	Dec 2023	Solar
Canton	Captona Canton LLC	Canton, MA	6 GWh	Jul 2012	Dec 2023	Solar
Shrewsbury Solar	Consolidated Edison Development Inc.	Shrewsbury, MA	4 GWh	Sep 2012	Dec 2023	Solar
NBC Field's Point Wind Farm	Narragansett Bay Commission	Providence, RI	5 GWh	Sep 2012	Aug 2024	Wind
Camelot Wind LLC	Camelot Wind LLC	Plymouth, MA	2 GWh	Sep 2012	Dec 2023	Wind
Bull Hill Wind Project	Evergreen Wind, LLC	Eastbrook, ME	82 GWh	Sep 2012	Dec 2023	Wind
Kingdom Community Wind	Green Mountain Power Corp	Lowell, VT	152 GWh	Oct 2012	Aug 2024	Wind
SVEP Solar Project Company	CVI CleanCapital Solar 1 LLC	Pownal, VT	2 GWh	Nov 2012	Dec 2023	Solar
Williamstown Solar	CVI CleanCapital Solar 1 LLC	Williamstown, VT	2 GWh	Nov 2012	Dec 2023	Solar
Groton Wind LLC	Avangrid Renewables LLC	Groton, NH	97 GWh	Nov 2012	Aug 2024	Wind
Georgia Mountain Community Wind Farm	Greenbacker Renewable Energy Corporation	Milton, VT	25 GWh	Nov 2012	Aug 2024	Wind
Padelford Solar	Consolidated Edison Solutions Inc.	Berkley, MA	3 GWh	Nov 2012	Dec 2023	Solar
Groveland Solar	Consolidated Edison Development Inc.	Groveland, MA	4 GWh	Nov 2012	Dec 2023	Solar
New England Wind LLC	Avangrid Renewables LLC	Florida, MA	62 GWh	Nov 2012	Aug 2024	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	894.0 GWh	4
#25	Dominion Energy South Carolina, Inc.	26.0 TWh	85
#13	Duke Energy Carolinas	110.9 TWh	556
#17	Duke Energy Progress East	63.3 TWh	554
#51	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.2 TWh	20
#12	New York Independent System Operator	130.0 TWh	1,100
#1	PJM Interconnection, LLC	843.8 TWh	2,305
#31	South Carolina Public Service Authority	17.9 TWh	33
#60	Southeastern Power Administration	1.6 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#7	California Independent System Operator	191.5 TWh	1,943
#9	Tennessee Valley Authority	157.5 TWh	170
#10	Florida Power & Light Co.	147.7 TWh	159
#12	New York Independent System Operator	130.0 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556
#15	ISO New England	102.8 TWh	1,487
#16	Bonneville Power Administration	80.0 TWh	158
#17	Duke Energy Progress East	63.3 TWh	554
#18	Salt River Project Agricultural Improvement and Power District	59.0 TWh	45
#19	PacifiCorp East	52.6 TWh	204