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	Dec 2024
Annual Generation	103.6 TWh
Power Plants	1,487
Utilities	782
Ranked #15 out of 65 in terms of net annual generation
Ranked #12 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 57.4% Nuclear \| 25.1% Water \| 7.4% Other Fuel \| 4.5% Wind \| 3.3% Solar \| 1.2% Coal \| 0.2%

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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
Falmouth 2 Solar	Citizens Enterprises Corporation	Falmouth, MA	3 GWh	Aug 2021	Dec 2023	Solar
Spencer Solar MA	Citizens Enterprises Corporation	Spencer, MA	3 GWh	Feb 2020	Dec 2023	Solar
Oxford Solar	Citizens Enterprises Corporation	Oxford, MA	6 GWh	Jan 2020	Dec 2023	Solar
Ashland Solar	Citizens Enterprises Corporation	Ashland, MA	7 GWh	Nov 2019	Dec 2023	Solar
J C McNeil	City of Burlington Electric - (VT)	Burlington, VT	180 GWh	May 1984	Sep 2024	Wood/Wood Waste Solids : 99.7%
Burlington GT	City of Burlington Electric - (VT)	Burlington, VT	472 MWh	Aug 1971	Dec 2023	Distillate Fuel Oil
Chace Mill Winooski One	City of Burlington Electric - (VT)	Winooski, VT	36 GWh	Mar 1993	Dec 2023	Water
Front Street	City of Chicopee - (MA)	Chicopee, MA	476 MWh	Dec 1977	Dec 2023	Distillate Fuel Oil
Boatlock	City of Holyoke Gas and Electric Dept.	Holyoke, MA	21 GWh	Dec 1920	Dec 2023	Water
Cabot Holyoke	City of Holyoke Gas and Electric Dept.	Holyoke, MA	6 GWh	Dec 1892	Dec 2023	Water
Chemical	City of Holyoke Gas and Electric Dept.	Holyoke, MA	7 GWh	Dec 1934	Dec 2023	Water
Hadley Falls	City of Holyoke Gas and Electric Dept.	Holyoke, MA	218 GWh	Dec 1951	Dec 2023	Water
Riverside Holyoke	City of Holyoke Gas and Electric Dept.	Holyoke, MA	40 GWh	Dec 1905	Dec 2023	Water
Cobble Mountain	City of Holyoke Gas and Electric Dept.	Granville, MA	11 GWh	Dec 1929	Dec 2023	Water
Mine Falls Generating Station	City of Nashua, NH	Nashua, NH	20 GWh	Nov 1985	Dec 2023	Water
Norwich WWTP	City of Norwich - (CT)	Norwich, CT	1 MWh	Apr 2006	Mar 2024	Distillate Fuel Oil
North Main Street	City of Norwich - (CT)	Norwich, CT	138 MWh	Jul 1972	May 2023	Distillate Fuel Oil
Tenth Street	City of Norwich - (CT)	Norwich, CT	4 GWh	Apr 1967	Dec 2023	Water
Waters River	City of Peabody - (MA)	Peabody, MA	4 GWh	Nov 1971	Dec 2023	Natural Gas : 76.6% Distillate Fuel Oil : 23.4%
Waste Water Treatment Plant	City of Pittsfield	Pittsfield, MA	763 MWh	Dec 2011	Dec 2022	Solar
West Water Street	City of Taunton	Taunton, MA	1 GWh	Dec 2017	Dec 2023	Distillate Fuel Oil
Cleary Flood Hybrid	City of Taunton	Taunton, MA	50 GWh	May 1966	Dec 2023	Natural Gas : 95.5% Distillate Fuel Oil : 4.5%
Thundermist Hydro	City of Woonsocket	Providence, RI	5 GWh	May 1981	Sep 2023	Water
Worcester Landfill	City of Worcester DPW	Worcester, MA	9 GWh	Apr 2017	Dec 2023	Solar
Claire Solar Farm	Claire Solar Partners LLC	South Burlington, VT	3 GWh	Jun 2014	Dec 2023	Solar
Clarendon Solar Farm	Clarendon Solar Farm, LLC	North Clarendon, VT	3 GWh	Jun 2014	Dec 2023	Solar
Clark Road Solar 1, LLC	Clark Road Solar 1, LLC	Gardner, MA	8 GWh	Nov 2020	Dec 2023	Solar
Clark University	Clark University	Worcester, MA	9 GWh	Dec 2012	Dec 2023	Natural Gas
Tisbury Landfill Solar	Clean Focus Yield, LLC	Tisbury, MA	2 GWh	Jun 2014	Dec 2023	Solar
Chatham Landfill	Clean Focus Yield, LLC	Chatham, MA	2 GWh	Aug 2014	Dec 2023	Solar
Brewster Landfill	Clean Focus Yield, LLC	Brewster, MA	2 GWh	Aug 2014	Dec 2023	Solar
Harwich Landfill	Clean Focus Yield, LLC	Harwich, MA	6 GWh	Jul 2014	Dec 2023	Solar
Katama Farm	Clean Focus Yield, LLC	Edgartown, MA	2 GWh	May 2014	Dec 2023	Solar
Nunnepog	Clean Focus Yield, LLC	Edgartown, MA	2 GWh	May 2014	Dec 2023	Solar
Barnstable Landfill	Clean Focus Yield, LLC	Marstons Mills, MA	5 GWh	Aug 2014	Dec 2023	Solar
Dennis Landfill	Clean Focus Yield, LLC	Dennis, MA	7 GWh	Aug 2014	Dec 2023	Solar
Dartmouth Landfill	CleanCapital Holdings	Dartmouth, MA	2 GWh	Jan 2013	Dec 2023	Solar
WED Kingstown Solar I, LLC - West	CleanCapital Holdings	Richmond, RI	2 GWh	Nov 2017	Dec 2023	Solar
Lepomis PV Energy LLC	CleanCapital Holdings	Plymouth, MA	8 GWh	May 2014	Dec 2023	Solar
Acushnet-Braley Road 1	CleanCapital Holdings	Freetown, MA	3 GWh	Dec 2012	Dec 2023	Solar
Easthampton Landfill-City of Easthampton	CleanCapital Holdings	Easthampton, MA	3 GWh	May 2012	Dec 2023	Solar
Acushnet- High Hill	CleanCapital Holdings	Dartmouth, MA	4 GWh	Feb 2013	Dec 2023	Solar
WED Kingstown Solar I - East Array	CleanCapital Holdings	Washington, RI	4 GWh	Nov 2017	Dec 2023	Solar
Acushnet Hawes Reed Road	CleanCapital Holdings	Dartmouth, MA	2 GWh	Jun 2012	Dec 2023	Solar
Acushnet AD Makepeace	CleanCapital Holdings	Wareham, MA	6 GWh	Jun 2012	Dec 2023	Solar
Easton Landfill	CleanCapital Holdings	Easton, MA	2 GWh	Sep 2013	Dec 2023	Solar
WED Stilson Solar	CleanCapital Holdings	Richmond, RI	3 GWh	Nov 2017	Dec 2023	Solar
Ludlow Landfill	CleanCapital Holdings	Ludlow, MA	3 GWh	Jul 2013	Dec 2023	Solar
EDF Lancaster	CleanCapital Holdings	Lancaster, MA	6 GWh	Jun 2014	Dec 2023	Solar
Plymouth Site 1	CleanCapital Holdings	Plympton, MA	7 GWh	Sep 2013	Dec 2023	Solar
Methuen Landfill	CleanCapital Holdings	Methuen, MA	2 GWh	Jun 2013	Dec 2023	Solar
Greater New Bedford LFG Utiliz. Facility	CommonWealth New Bedford Energy LLC	New Bedford, MA	20 GWh	Sep 2005	Dec 2023	Landfill Gas
Johnston Solar	Concord New Energy	Town of Johnston, RI	2 GWh	Jun 2015	Dec 2023	Solar
Branford	Connecticut Jet Power LLC	Branford, CT	68 MWh	Oct 1967	Dec 2023	Kerosene
Cos Cob	Connecticut Jet Power LLC	Greenwich, CT	1 GWh	Aug 1969	Dec 2023	Kerosene
Franklin Drive	Connecticut Jet Power LLC	Torrington, CT	100 MWh	Oct 1968	Dec 2023	Kerosene
Torrington Terminal	Connecticut Jet Power LLC	Torrington, CT	67 MWh	Oct 1967	Dec 2023	Kerosene
Water Treatment 1 & 2	Connecticut Mun Elec Engy Coop	Groton, CT	375 MWh	Sep 2010	Sep 2024	Distillate Fuel Oil
Subase Microgrid Project	Connecticut Mun Elec Engy Coop	Groton, CT	34 GWh	Nov 2022	Dec 2023	Natural Gas
Backus Microgrid Project	Connecticut Mun Elec Engy Coop	Norwich, CT	937 MWh	Jul 2014	Sep 2024	Distillate Fuel Oil
Bridge Street 1 & 2	Connecticut Mun Elec Engy Coop	Groton, CT	562 MWh	Jun 2010	Dec 2023	Distillate Fuel Oil
Fishers Island 1	Connecticut Mun Elec Engy Coop	Fisher's Island, NY	119 MWh	Nov 2010	Dec 2023	Distillate Fuel Oil
Fort Hill 1, 2, 3 & 4	Connecticut Mun Elec Engy Coop	Uncasville, CT	701 MWh	Jul 2010	Sep 2024	Distillate Fuel Oil
Gary Court 1 & 2	Connecticut Mun Elec Engy Coop	Groton, CT	466 MWh	Jun 2010	Dec 2023	Distillate Fuel Oil
Jewett City 1	Connecticut Mun Elec Engy Coop	Jewett City, CT	198 MWh	Jan 2010	Dec 2023	Distillate Fuel Oil
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
Groveland Solar	Consolidated Edison Development Inc.	Groveland, MA	4 GWh	Nov 2012	Dec 2023	Solar
Shrewsbury Solar	Consolidated Edison Development Inc.	Shrewsbury, MA	4 GWh	Sep 2012	Dec 2023	Solar
Fairhaven MA 2	Consolidated Edison Development Inc.	Fairhaven, MA	5 GWh	Aug 2021	Dec 2023	Solar
Douglas Solar	Consolidated Edison Development Inc.	Douglas, MA	7 GWh	Nov 2012	Dec 2023	Solar
Northbridge Solar	Consolidated Edison Development Inc.	South Grafton, MA	3 GWh	Jul 2013	Dec 2023	Solar
Dartmouth II Solar	Consolidated Edison Development Inc.	Dartmouth, MA	2 GWh	May 2012	Dec 2023	Solar
UMass PV Lot 22	Consolidated Edison Development Inc.	Amherst, MA	3 GWh	Aug 2022	Dec 2023	Solar
Dartmouth Solar	Consolidated Edison Development Inc.	Dartmouth, MA	3 GWh	Feb 2011	Dec 2023	Solar
UMASS	Consolidated Edison Development Inc.	Amherst, MA	941 MWh	Sep 2016	Dec 2023	Solar
Merrimac Solar	Consolidated Edison Development Inc.	Merrimac, MA	2 GWh	Nov 2013	Dec 2023	Solar
Technology Drive Solar	Consolidated Edison Development Inc.	Brattleboro, VT	3 GWh	Aug 2014	Dec 2023	Solar
West Greenwich Solar	Consolidated Edison Development Inc.	West Greenwich, RI	3 GWh	Apr 2013	Sep 2024	Solar
CED Northampton Solar LLC Hybrid	Consolidated Edison Development Inc.	Northampton, MA	6 GWh	Nov 2019	Dec 2023	Solar
CED Westfield Solar, LLC	Consolidated Edison Development Inc.	Westfield, MA	3 GWh	Jul 2016	Dec 2023	Solar
CED Chicopee Solar	Consolidated Edison Development Inc.	Chicopee, MA	5 GWh	Jun 2017	Dec 2023	Solar
CED Foster	Consolidated Edison Development Inc.	Foster, RI	3 GWh	Nov 2017	Sep 2024	Solar
Tihonet Solar	Consolidated Edison Solutions Inc.	Wareham, MA	2 GWh	Apr 2014	Dec 2023	Solar
Wilson Solar	Consolidated Edison Solutions Inc.	Spencer, MA	3 GWh	May 2013	Dec 2023	Solar
Padelford Solar	Consolidated Edison Solutions Inc.	Berkley, MA	3 GWh	Nov 2012	Dec 2023	Solar
Quittacas Pond Solar	Consolidated Edison Solutions Inc.	Rochester, MA	5 GWh	Nov 2013	Dec 2023	Solar
Boston Scientific Solar	Consolidated Edison Solutions Inc.	Quincy, MA	1 GWh	Nov 2012	Dec 2023	Solar
Future Generation Wind	Consolidated Edison Solutions Inc.	Plymouth, MA	12 GWh	Jul 2016	Dec 2023	Wind
Mystic Generating Station	Constellation Mystic Power LLC	Charlestown, MA	2 TWh	May 1969	Mar 2024	Natural Gas
Exelon Medway LLC	Constellation Power, Inc	Medway, MA	4 GWh	Jun 1970	Dec 2023	Distillate Fuel Oil
Exelon West Medway II LLC	Constellation Power, Inc	Medway, MA	197 GWh	Feb 2019	Sep 2024	Natural Gas : 99.6%
Exelon Framingham LLC	Constellation Power, Inc	Framingham, MA	792 MWh	Aug 1969	Dec 2023	Distillate Fuel Oil
Coolidge Solar 1, LLC	Coolidge Solar I, LLC	Ludlow, VT	27 GWh	Nov 2018	Sep 2024	Solar
Covanta Bristol Energy	Covanta Bristol Inc	Bristol, CT	110 GWh	Nov 1987	Sep 2024	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Covanta Southeastern Connecticut Company	Covanta Southeastern Connecticut Company	Preston, CT	116 GWh	Nov 1991	Sep 2024	Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Distillate Fuel Oil : 1.9%
Coventry Photovoltaic, LLC	Coventry Photovoltaic, LLC	Coventry, VT	2 GWh	Jul 2014	Dec 2023	Solar
Manheim New England	Cox Enterprises	North Dighton, MA	3 GWh	Nov 2012	Dec 2023	Solar
Beaver Ridge Wind	CPV Beaver Ridge Wind LLC	Freedom, ME	10 GWh	Oct 2008	Dec 2023	Wind
Canton Mountain Wind	CPV Canton Mountain Wind LLC	Canton, ME	50 GWh	Oct 2017	Dec 2023	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	900.7 GWh	4
#25	Dominion Energy South Carolina, Inc.	26.0 TWh	85
#13	Duke Energy Carolinas	110.8 TWh	556
#17	Duke Energy Progress East	63.1 TWh	554
#51	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.1 TWh	20
#12	New York Independent System Operator	129.6 TWh	1,100
#1	PJM Interconnection, LLC	842.1 TWh	2,305
#31	South Carolina Public Service Authority	17.8 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	191.4 TWh	1,943
#9	Tennessee Valley Authority	157.5 TWh	170
#10	Florida Power & Light Co.	147.4 TWh	159
#12	New York Independent System Operator	129.6 TWh	1,100
#13	Duke Energy Carolinas	110.8 TWh	556
#15	ISO New England	103.6 TWh	1,487
#16	Bonneville Power Administration	79.9 TWh	158
#17	Duke Energy Progress East	63.1 TWh	554
#18	Salt River Project Agricultural Improvement and Power District	58.9 TWh	45
#19	PacifiCorp East	52.9 TWh	204