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
Boston Scientific Solar	Consolidated Edison Solutions Inc.	Quincy, MA	1 GWh	Nov 2012	Dec 2023	Solar
CMEEC - Navy NE Trident	Tesla Inc.	Groton, CT	1 GWh	May 2017	Dec 2023	Solar
Silver Lake Solar Photovoltaic Facility	Western Massachusetts Electric Company	Pittsfield, MA	1 GWh	Nov 2010	Dec 2023	Solar
Belchertown	Altus Power America Management, LLC	Belchertown, MA	1 GWh	Nov 2015	Dec 2023	Solar
Berlin 5	Green Mountain Power Corp	Berlin, VT	1 GWh	May 1972	Aug 2024	Kerosene
MEVS DOT 109	MEVS DOT, LLC	Augusta, ME	1 GWh	Jun 2023	Dec 2023	Solar
Ledeaux Solar, LLC CSG	38 Degrees North, LLC	North Brookfield, MA	1 GWh	Oct 2017	Dec 2023	Solar
Pleasantdale Road Community Solar	Pleasantdale Road Solar, LLC	Rutland, MA	1 GWh	Aug 2017	Dec 2023	Solar
Holliston Solar CSG	MN8 Energy LLC	Holliston, MA	1 GWh	Jun 2015	Dec 2023	Solar
Manchester Community College East	Onyx Asset Services Group	Manchester, CT	1 GWh	Sep 2018	Dec 2023	Solar
Shirley Landfill	Altus Power America Management, LLC	Shirley, MA	1 GWh	Apr 2017	Dec 2023	Solar
Plainfield Solar 1	Ecos Energy LLC	Plainfield, CT	1 GWh	Dec 2019	Dec 2023	Solar
Erving CSG	Erving Poplar Mountain Solar 1, LLC	Erving, MA	1 GWh	Aug 2020	Dec 2023	Solar
ME Novel Lighthouse - Front St. Solar CSG	Luminace Sunbeam Development Holdings, LLC	Skowhegan, ME	1 GWh	Apr 2023	Dec 2023	Solar
Sidney	Nautilus Solar Solutions	Sidney, ME	1 GWh	Apr 2023	Dec 2023	Solar
Town of Halfmoon	Tesla Inc.	Waterford, NY	1 GWh	May 2017	Dec 2023	Solar
Fort Fairfield	Standard Solar	Fairfield, ME	1 GWh	Jul 2023	Dec 2023	Solar
Big George PV CSG	Altus Power America Management, LLC	Plymouth, MA	1 GWh	Aug 2018	Dec 2023	Solar
Hartford Landfill Solar EGF	Materials Innovation Recycling Authority	Hartford, CT	1 GWh	May 2014	Dec 2023	Solar
Green Providence Wind I, LLC	Green Providence Wind I, LLC	Providence, RI	1 GWh	Nov 2021	Dec 2023	Wind
Little Bay	Altus Power America Management, LLC	Providence, RI	1 GWh	Feb 2014	Dec 2023	Solar
Antanavica Solar	Cypress Creek Renewables	Leicester, MA	1 GWh	Jul 2018	Dec 2023	Solar
Plainfield Solar 2	Ecos Energy LLC	Plainfield, CT	1 GWh	Mar 2020	Dec 2023	Solar
Greene County Meter #1	Tesla Inc.	Cairo, NY	1 GWh	Jan 2018	Dec 2023	Solar
DG Tufts Science LLC CSG	DG Tufts Science, LLC	North Grafton, MA	1 GWh	Jan 2017	Dec 2023	Solar
Barre Solar III LLC	AES Distributed Energy	Barre, MA	1 GWh	Feb 2018	Dec 2023	Solar
Acton Solar Landfill	Heliovaas LLC	Acton, MA	1 GWh	Nov 2013	Dec 2023	Solar
Plymouth Solar	NSTAR Electric Company	Plymouth, MA	1 GWh	May 2018	Dec 2023	Solar
South Meadow	NAES Corp	Hartford, CT	1 GWh	Jul 1970	Dec 2022	Kerosene
Adams Solar	Ecos Energy LLC	Lebanon, CT	1 GWh	Feb 2018	Dec 2023	Solar
Manchester Community College North	Onyx Asset Services Group	Great Path, CT	2 GWh	Sep 2018	Dec 2023	Solar
Brookside	Terraform Arcadia	North Smithfield, RI	2 GWh	Oct 2015	Dec 2023	Solar
Town of Branford	Tesla Inc.	Branford, CT	2 GWh	May 2018	Dec 2023	Solar
Cohasse Solar, LLC CSG	38 Degrees North, LLC	Southbridge, MA	2 GWh	Sep 2017	Dec 2023	Solar
Jefferson Solar	Ecos Energy LLC	Lebanon, CT	2 GWh	Dec 2017	Dec 2023	Solar
Pittsfield 44 - M&W PV	NSTAR Electric Company	Pittsfield, MA	2 GWh	Jul 2018	Dec 2023	Solar
115 G Fisher	Greenbacker Renewable Energy Corporation	Middleborough, MA	2 GWh	Sep 2015	Dec 2023	Solar
JH Solar, LLC CSG	38 Degrees North, LLC	North Brookfield, MA	2 GWh	Oct 2017	Dec 2023	Solar
Hamilton Solar	Ecos Energy LLC	Lebanon, CT	2 GWh	Feb 2018	Dec 2023	Solar
Tisbury Landfill Solar	Clean Focus Yield, LLC	Tisbury, MA	2 GWh	Jun 2014	Dec 2023	Solar
Syncarpha Hancock III CSG	Syncarpha Hancock III, LLC	Pittsfield, MA	2 GWh	Oct 2017	Dec 2023	Solar
Wilson Solar	Ecos Energy LLC	Lebanon, CT	2 GWh	Feb 2018	Dec 2023	Solar
Sudbury Landfill	Heliovaas LLC	Sudbury, MA	2 GWh	Nov 2013	Dec 2023	Solar
ME-EDFR-Phase I-Woolwich	Green Mile Solar, LLC	Woolwich, ME	2 GWh	Aug 2023	Dec 2023	Solar
Franklin Solar	Ecos Energy LLC	Lebanon, CT	2 GWh	Feb 2018	Dec 2023	Solar
Fredonia Solar LLC	Greenbacker Renewable Energy Corporation	Fredonia, NY	2 GWh	Aug 2021	Dec 2023	Solar
Cherry Valley Solar, LLC CSG	38 Degrees North, LLC	Leicester, MA	2 GWh	Oct 2017	Dec 2023	Solar
3Colton	Madison Energy Holdings LLC	Millbury, MA	2 GWh	Jun 2023	Dec 2023	Solar
Methuen Landfill	CleanCapital Holdings	Methuen, MA	2 GWh	Jun 2013	Dec 2023	Solar
BWC Stony Brook, LLC Hybrid	AES Distributed Energy	Chelmsford, MA	2 GWh	Jun 2021	Dec 2023	Solar
Jackson Solar (CT)	Ecos Energy LLC	Griswold, CT	2 GWh	Nov 2019	Dec 2023	Solar
Dartmouth Landfill	CleanCapital Holdings	Dartmouth, MA	2 GWh	Jan 2013	Dec 2023	Solar
Ticket Network South Windsor	EnterSolar	South Windsor, CT	2 GWh	Apr 2018	Dec 2023	Solar
Foster Solar	Foster Solar, LLC	North Scituate, RI	2 GWh	Jul 2016	Dec 2023	Solar
Renew Canal 1 CSG LLC	NRG Renew Canal 1 LLC	Sandwich, MA	2 GWh	May 2017	Dec 2023	Solar
DG Haverhill CSG	DG Haverhill	Haverhill, MA	2 GWh	Aug 2017	Dec 2023	Solar
Sherman Solar	Ecos Energy LLC	Griswold, CT	2 GWh	Nov 2019	Dec 2023	Solar
VEC Magee Hill Solar	SoCore Energy LLC	Hinesburgh, VT	2 GWh	Oct 2017	Dec 2023	Solar
154 D Fisher	Greenbacker Renewable Energy Corporation	Middleborough, MA	2 GWh	Nov 2015	Dec 2023	Solar
Brewster Landfill	Clean Focus Yield, LLC	Brewster, MA	2 GWh	Aug 2014	Dec 2023	Solar
BWC Muddy Brook, LLC Hybrid	AES Distributed Energy	Mendon, MA	2 GWh	Aug 2021	Dec 2023	Solar
McHenry Solar	Ecos Energy LLC	Hampton, CT	2 GWh	Sep 2021	Dec 2023	Solar
Blair Solar	Ecos Energy LLC	Somers, CT	2 GWh	Dec 2020	Dec 2023	Solar
Katama Farm	Clean Focus Yield, LLC	Edgartown, MA	2 GWh	May 2014	Dec 2023	Solar
Few Solar	Ecos Energy LLC	Somers, CT	2 GWh	Dec 2020	Dec 2023	Solar
St. Joseph's Solar, LLC CSG	38 Degrees North, LLC	Charlton, MA	2 GWh	Nov 2017	Dec 2023	Solar
Woodchuck Solar, LLC CSG	38 Degrees North, LLC	Spencer, MA	2 GWh	Nov 2017	Dec 2023	Solar
Madison Solar	Ecos Energy LLC	Somers, CT	2 GWh	Dec 2020	Dec 2023	Solar
CMEEC - Rogers Rd Solar	Tesla Inc.	Norwich, CT	2 GWh	Jan 2017	Dec 2023	Solar
Palombo B Solar, LLC CSG	38 Degrees North, LLC	Uxbridge, MA	2 GWh	Nov 2017	Dec 2023	Solar
East Brookfield Main Street Solar LLC CSG	AES Distributed Energy	East Brookfield, MA	2 GWh	Nov 2020	Dec 2023	Solar
Clinton Solar	Ecos Energy LLC	Griswold, CT	2 GWh	Apr 2021	Dec 2023	Solar
Dudley River 2 Solar, LLC CSG	38 Degrees North, LLC	Southbridge, MA	2 GWh	Oct 2017	Dec 2023	Solar
Johnston Solar	Concord New Energy	Town of Johnston, RI	2 GWh	Jun 2015	Dec 2023	Solar
ALDI DC 2	EnterSolar	South Windsor, CT	2 GWh	Jan 2018	Dec 2023	Solar
Barton Acres Solar, LLC CSG	38 Degrees North, LLC	Phillipston, MA	2 GWh	Sep 2017	Dec 2023	Solar
Farley Road Community Solar	Farley Road Solar, LLC	Dudley, MA	2 GWh	Jul 2017	Dec 2023	Solar
Dudley River Solar, LLC CSG	38 Degrees North, LLC	Southbridge, MA	2 GWh	Oct 2017	Dec 2023	Solar
Sunderland Solar PV	NSTAR Electric Company	Sunderland, MA	2 GWh	Aug 2018	Dec 2023	Solar
Lilly Lane	LSE Chamaeleon LLC	Charlton, MA	2 GWh	May 2018	Dec 2023	Solar
Dover	BWC Buckmaster Pond LLC	Dover, MA	2 GWh	Jul 2017	Dec 2023	Solar
Whatley Renewables	Whatley Renewables, LLC	Whatley, MA	2 GWh	Sep 2020	Dec 2023	Solar
Cranberry Solar	GWE Cranberry Solar RT, LLC	Middleborough, MA	2 GWh	Nov 2016	Dec 2023	Solar
CP Middletown Solar II LLC	Green Street Power Partners	Middletown, CT	2 GWh	Nov 2019	Dec 2023	Solar
CP Middletown Solar I LLC	Green Street Power Partners	Middletown, CT	2 GWh	Nov 2019	Dec 2023	Solar
Nunnepog	Clean Focus Yield, LLC	Edgartown, MA	2 GWh	May 2014	Dec 2023	Solar
Stafford St Solar 3 CSG	Stafford St Solar 3, LLC	Leicester, MA	2 GWh	Nov 2017	Dec 2023	Solar
Dudley River 3 Solar, LLC CSG	38 Degrees North, LLC	Southbridge, MA	2 GWh	Oct 2017	Dec 2023	Solar
NFM Solar Power LLC	FirstLight Power Resources, Inc. - MA	Northfield, MA	2 GWh	Feb 2012	Dec 2023	Solar
Caribou	VC Renewables	Caribou, ME	2 GWh	Jul 2023	Dec 2023	Solar
Canis Minor Solar Farm	LSE Canis Minor LLC	Barkhamsted, CT	2 GWh	Nov 2016	Dec 2023	Solar
Blair Wire Village Solar, LLC CSG	38 Degrees North, LLC	Spencer, MA	2 GWh	Nov 2017	Dec 2023	Solar
Corbin Russwin Phase 3 Berlin	EnterSolar	Berlin, CT	2 GWh	Mar 2018	Dec 2023	Solar
Nolan	Strata Manager, LLC	Great Barrington, MA	2 GWh	Oct 2017	Dec 2023	Solar
ER Bone Hill Solar, LLC	Greenbacker Renewable Energy Corporation	Northfield, VT	2 GWh	Aug 2022	Dec 2023	Solar
Carver CSG	Altus Power America Management, LLC	Carver, MA	2 GWh	Apr 2019	Dec 2023	Solar
RGS-Rutland VNM SREC II Project (MA)	TerraForm Solar XVII, LLC	Rutland, MA	2 GWh	Oct 2015	Dec 2023	Solar
Cenergy - Waterville (CSG)	Luminace Sunbeam Development Holdings, LLC	Waterville, ME	2 GWh	Jun 2023	Dec 2023	Solar
BWC Wareham River	BWC Wareham River, LLC	Wareham, MA	2 GWh	Nov 2018	Dec 2023	Solar
Samoset Solar	Samoset Solar, LLC	Rockport, ME	2 GWh	Jun 2023	Dec 2023	Solar

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