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
Sydney Solar	Ecos Energy LLC	Hampton, CT	3 GWh	May 2020	Dec 2023	Solar
OSG Solar 1 LLC	Navisun LLC	Orange, MA	3 GWh	Jun 2012	Dec 2023	Solar
CES Sterling LLC	SunEdison LLC	Sterling, MA	3 GWh	Jan 2013	Dec 2023	Solar
Sampson Road Community Solar	Sampson Road Solar, LLC	Charlton, MA	3 GWh	Nov 2017	Dec 2023	Solar
Ashby Duffy CSG Solar Farm	LSE Cassiopeia LLC	Ashby, MA	3 GWh	Nov 2017	Dec 2023	Solar
Kearsarge 100 Sohier Rd	Kearsarge Beverly LLC	Beverly, MA	3 GWh	Apr 2023	Dec 2023	Solar
UMass PV Lot 22	Consolidated Edison Development Inc.	Amherst, MA	3 GWh	Aug 2022	Dec 2023	Solar
Syncarpha Hancock II CSG	Syncarpha Hancock II, LLC	Hancock, MA	3 GWh	Oct 2017	Dec 2023	Solar
Green Providence Wind II, LLC	Green Providence Wind II, LLC	Providence, RI	3 GWh	Nov 2021	Dec 2023	Wind
Cranberry Highway Solar LLC	Cranberry Highway Solar, LLC	Wareham, MA	3 GWh	Feb 2021	Dec 2023	Solar
Savoy Solar PV	NSTAR Electric Company	Savoy, MA	3 GWh	Jan 2019	Dec 2023	Solar
Hurteau Solar Project Hybrid	AES Distributed Energy	Uxbridge, MA	3 GWh	Feb 2020	Dec 2023	Solar : 98.8%
Rehoboth Solar	Citizens Enterprises Corporation	Rehoboth, MA	3 GWh	Nov 2013	Dec 2023	Solar
CMEEC - Bozrah	Tesla Inc.	Bozrah, CT	3 GWh	Nov 2016	Dec 2023	Solar
Seaboard Charlton, LLC	Navisun LLC	Charlton, MA	3 GWh	Nov 2020	Dec 2023	Solar
Stone Hill Solar CSG	MN8 Energy LLC	North Easton, MA	3 GWh	Jun 2014	Dec 2023	Solar
GSPP Gilman, LLC	Green Street Power Partners	Lunenburg, VT	3 GWh	Aug 2018	Dec 2023	Solar
Lakeville Solar	C2 MA Lakeville, LLC	Lakeville, MA	3 GWh	Nov 2018	Dec 2023	Solar
Kearsarge GB	Kearsarge GB LLC	Great Barrington, MA	3 GWh	Jul 2018	Dec 2023	Solar
Griffin Road Solar, LLC CSG	Griffin Road Solar, LLC	Charlton, MA	3 GWh	Feb 2018	Dec 2023	Solar
Sutton Solar CSG	Sutton Solar, LLC	Sutton, MA	3 GWh	Oct 2016	Dec 2023	Solar
Wareham MA 1 Community Solar	Navisun LLC	Wareham, MA	3 GWh	Aug 2016	Dec 2023	Solar
Cycz Solar Project CSG Hybrid	AES Distributed Energy	Spencer, MA	3 GWh	May 2020	Dec 2023	Solar
Rail Trail	Altus Power America Management, LLC	Great Barrington, MA	3 GWh	Apr 2016	Dec 2023	Solar
Truck Stop	Strata Manager, LLC	West Stockridge, MA	3 GWh	Oct 2017	Dec 2023	Solar
Stafford MS Ground Mount Community Solar	Town of Stafford - (CT)	Stafford, CT	3 GWh	Jun 2016	Dec 2023	Solar
Bourne (MA) - Holliston I	NVT LICENSES, LLC	Holliston, MA	3 GWh	Nov 2014	Dec 2023	Solar
Upton Community Solar	Upton Solar, LLC	Upton, MA	3 GWh	Aug 2017	Dec 2023	Solar
Monson Solar, LLC	Monson Solar, LLC	Monson, MA	3 GWh	Jul 2017	Dec 2023	Solar
CED Foster	Consolidated Edison Development Inc.	Foster, RI	3 GWh	Nov 2017	Aug 2024	Solar
Westtown CSG	Altus Power America Management, LLC	Westtown, NY	3 GWh	Apr 2019	Dec 2023	Solar
Brimfield	WEB Brimfield Solar LLC	Brimfield, MA	3 GWh	Nov 2021	Dec 2023	Solar
Marlborough Solar	Marlborough Solar, LLC	Milton, NY	3 GWh	Feb 2021	Dec 2023	Solar
Natick Mall	Natick Mall	Natick, MA	3 GWh	Sep 2018	Dec 2023	Solar
Curtis Hill Solar CSG	CCC Solar Holdings LLC	Charlton, MA	3 GWh	Sep 2016	Dec 2023	Solar
Palmer Solar LLC	Palmer Solar LLC	Palmer, MA	3 GWh	Nov 2013	Dec 2022	Solar
CED Westfield Solar, LLC	Consolidated Edison Development Inc.	Westfield, MA	3 GWh	Jul 2016	Dec 2023	Solar
Padelford Solar	Consolidated Edison Solutions Inc.	Berkley, MA	3 GWh	Nov 2012	Dec 2023	Solar
Depot Hill Solar CSG	CCC Solar Holdings LLC	Charlton, MA	3 GWh	Sep 2016	Dec 2023	Solar
North Providence	Captona N.P. LLC	North Providence, RI	3 GWh	Sep 2018	Dec 2023	Solar
Northbridge Solar	Consolidated Edison Development Inc.	South Grafton, MA	3 GWh	Jul 2013	Dec 2023	Solar
Barrow Solar	Ecos Energy LLC	Somers, CT	3 GWh	May 2021	Dec 2023	Solar
Becton Canaan	DG Northeast 1, LLC	North Canaan, CT	3 GWh	Feb 2018	Dec 2023	Solar
Merrimack Solar Farm, LLC	Merrimack Solar Farm	Merrimack, NH	3 GWh	Dec 2018	Dec 2023	Solar
Little Falls Solar 1	Little Falls Solar 1, LLC	Little Falls, NY	3 GWh	Aug 2020	Dec 2023	Solar
Kearsarge Montague BD(CSG)	Kearsarge Montague BD LLC	Montague, MA	3 GWh	Oct 2021	Dec 2023	Solar
Cold River Road Solar	AEP Onsite Partners, LLC	North Clarendon, VT	3 GWh	Nov 2016	Dec 2023	Solar
North Kingstown Solar LLC	North Kingstown Solar LLC	North Kingstown, RI	3 GWh	Aug 2022	Dec 2023	Solar
Kearsarge Uxbridge	Kearsarge Uxbridge LLC	Uxbridge, MA	3 GWh	Aug 2018	Dec 2023	Solar
Wachusett Solar	Wachusett Solar, LLC	Rutland, MA	3 GWh	Jul 2019	Dec 2023	Solar
Southern Sky Renew Energy Berkley LLC	Southern Sky Renewable Energy Berkley, LLC	Berkley, MA	3 GWh	May 2014	Dec 2023	Solar
Ludlow Landfill	CleanCapital Holdings	Ludlow, MA	3 GWh	Jul 2013	Dec 2023	Solar
Palombo Solar, LLC CSG	38 Degrees North, LLC	Uxbridge, MA	3 GWh	Nov 2017	Dec 2023	Solar
Powder Hill	LSE Delphinus LLC	Enfield, CT	3 GWh	Nov 2020	Dec 2023	Solar
Kearsarge East Providence	Kearsarge East Providence LLC	East Providence, RI	3 GWh	Nov 2020	Dec 2023	Solar
Great Falls (VT)	The Town of Lyndon Electric Department	Lyndon, VT	3 GWh	Jul 1915	Dec 2023	Water
Torrington Solar One, LLC	DG Connecticut III, LLC	Torrington, CT	3 GWh	Feb 2021	Dec 2023	Solar
Hardwick-Athol & Eagle Hill	SEC CRSD Solar One, LLC	Hardwick, MA	3 GWh	Jun 2015	Dec 2023	Solar
Forbes Street Solar	Altus Power America Management, LLC	East Providence, RI	3 GWh	Nov 2013	Dec 2023	Solar
Norcap North	LSE Canes Venatici LLC	East Windsor, CT	3 GWh	Nov 2017	Dec 2023	Solar
MacKinnon Solar	Ecos Energy LLC	Rutland, VT	3 GWh	Jul 2021	Dec 2023	Solar
Hadley Solar NG, LLC	NuGen Capital Management	Hadley, MA	3 GWh	Jun 2014	Dec 2023	Solar
Indian Orchard PV Facility	Western Massachusetts Electric Company	Springfield, MA	3 GWh	Nov 2011	Dec 2023	Solar
Kearsarge Acushnet	Kearsarge Acushnet LLC	Acushnet, MA	3 GWh	Jan 2020	Dec 2023	Solar
Bowden Solar LLC	38DN Power Fund 1 LLC	Monson, MA	3 GWh	Feb 2019	Dec 2023	Solar
Long Plain Solar	Long Plain Solar, LLC	Whatley, MA	3 GWh	Nov 2019	Dec 2023	Solar
Boltonville Hydro Associates	Boltonville Hydro Associates	Boltonville, VT	3 GWh	Jun 1984	Dec 2023	Water
Charlemont A	Charlemont MA, LLC	Charlemont, MA	3 GWh	Aug 2021	Dec 2023	Solar
East Bridgewater Solar	Altus Power America Management, LLC	East Bridgewater, MA	3 GWh	Oct 2017	Dec 2023	Solar
Braley Road 2	Mass Solar, LLC	Freetown, MA	3 GWh	Feb 2015	Jul 2023	Solar
Norcap South	LSE Coma Berenices LLC	East Windsor, CT	3 GWh	Nov 2017	Dec 2023	Solar
North Adams Landfill	Syncarpha North Adams, LLC	North Adams, MA	3 GWh	Sep 2015	Dec 2023	Solar
EBZ Solar	Citizens Enterprises Corporation	Shirley, MA	3 GWh	Dec 2012	Dec 2023	Solar
Syncarpha Still River, LLC CSG	Syncarpha Still River, LLC	Bolton, MA	3 GWh	Nov 2016	Dec 2023	Solar
MDFA Devens-Saratoga	Terraform Arcadia	Devens, MA	3 GWh	Feb 2016	Dec 2023	Solar
Green Meadows	Altus Power America Management, LLC	Sandwich, MA	3 GWh	Apr 2014	Dec 2023	Solar
Integrys MA Solar, LLC - Ashburnham Site	Integrys MA Solar, LLC	Ashburnham, MA	3 GWh	Nov 2013	Dec 2023	Solar
Golden Solar	Cardinal Renewables	St. Johnsbury, VT	3 GWh	Oct 2021	Dec 2023	Solar
GELD Solar Farm	Ameresco, Inc - GELD	Groton, MA	3 GWh	May 2016	Dec 2023	Solar
Cronin Road Solar 1, LLC CSG Hybrid	AES Distributed Energy	Warren, MA	3 GWh	May 2020	Dec 2023	Solar : 99.7%
Little Falls Solar	Little Falls Solar	Little Falls, NY	4 GWh	Sep 2020	Dec 2023	Solar
GenConn Middletown LLC	GenConn Middletown LLC	Middletown, CT	4 GWh	May 2011	Dec 2023	Kerosene : 83.6% Natural Gas : 16.4%
Canis Major Solar Farm	LSE Canis Major LLC	Suffield, CT	4 GWh	Nov 2016	Dec 2023	Solar
MHG Wallingford	Standard Solar	Wallingford, VT	4 GWh	Nov 2019	Dec 2023	Solar
Battle Creek Solar	Ecos Energy LLC	Bennington, VT	4 GWh	Sep 2018	Dec 2023	Solar
Tenth Street	City of Norwich - (CT)	Norwich, CT	4 GWh	Apr 1967	Dec 2023	Water
Mascoma Hydro	Green Mountain Power Corp	W. Lebanon, NH	4 GWh	Nov 1988	Dec 2023	Water
Ottauquechee Hydro	Green Mountain Power Corp	N. Hartland, VT	4 GWh	Mar 1983	Dec 2023	Water
Adams Farm Solar	Altus Power America Management, LLC	Athol, MA	4 GWh	Sep 2013	Dec 2023	Solar
Easthampton CSG	Easthampton Park Solar 1, LLC	Easthampton, MA	4 GWh	Aug 2020	Dec 2023	Solar
Loring	VC Renewables	Limestone, ME	4 GWh	Apr 2023	Dec 2023	Solar
Incom Solar, LLC CSG	38 Degrees North, LLC	Charlton, MA	4 GWh	Oct 2017	Dec 2023	Solar
ER Sand Hill	Greenbacker Renewable Energy Corporation	Castleton, VT	4 GWh	Oct 2022	Dec 2023	Solar
Dartmouth Farms Solar	Dartmouth Farms Solar, LLC	Dartmouth, MA	4 GWh	Oct 2017	Dec 2023	Solar
Fairhaven E	Fairhaven MA 1, LLC	Fairhaven, MA	4 GWh	Jul 2021	Dec 2023	Solar
Southbridge PV	Terraform Arcadia	Southbridge, MA	4 GWh	Dec 2013	Dec 2023	Solar
Scituate PV	AES Distributed Energy	Scituate, MA	4 GWh	Sep 2013	Dec 2023	Solar
Cream Street Solar	Cream Street Solar, LLC	Hyde Park, NY	4 GWh	Nov 2020	Dec 2023	Solar
Hunt Farm Solar	Altus Power America Management, LLC	Orange, MA	4 GWh	Aug 2013	Dec 2023	Solar
Walpole Solar 2	Walpole Solar 2, LLC	Walpole, MA	4 GWh	Mar 2014	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