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 2025
Annual Generation	105.5 TWh
Power Plants	1,577
Utilities	819
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 \| 55.8% Nuclear \| 26% Water \| 5% Other Fuel \| 4.4% Wind \| 4% Solar \| 1.5% Coal \| 0.4%

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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
Kearsarge William Way	Kearsarge William Way LLC	Bellingham, MA	7 GWh	Nov 2021	Dec 2024	Solar
Kearsarge Haverhill	Kearsarge Haverhill LLC	Haverhill, MA	4 GWh	Feb 2021	Dec 2024	Solar
Kearsarge Upper Union	Kearsarge Upper Union LLC	Franklin, MA	2 GWh	Feb 2023	Dec 2024	Solar
Kearsarge Montague BD(CSG)	Kearsarge Montague BD LLC	Montague, MA	3 GWh	Oct 2021	Dec 2024	Solar
Blodgett Solar CSG	Blodgett Street Solar 1, LLC	Tyngsboro, MA	10 GWh	Jul 2021	Dec 2024	Solar
Clark Road Solar 1, LLC	Clark Road Solar 1, LLC	Gardner, MA	9 GWh	Nov 2020	Dec 2024	Solar
Acton	Acton H Road Solar 1, LLC	Acton, ME	5 GWh	Nov 2021	Dec 2024	Solar
Naples	Naples Casco Solar 1, LLC	Naples, ME	3 GWh	Nov 2021	Dec 2024	Solar
Fredonia Solar LLC	Greenbacker Renewable Energy Corporation	Fredonia, NY	2 GWh	Aug 2021	Dec 2024	Solar
Dunstable Solar 1, LLC	AES Distributed Energy	Dunstable, MA	11 GWh	Mar 2021	Dec 2024	Solar
Fairhaven MA 2	Consolidated Edison Development Inc.	Fairhaven, MA	4 GWh	Aug 2021	Dec 2024	Solar
Acushnet MA 1	Navisun LLC	Acushnet, MA	2 GWh	Nov 2023	Dec 2024	Solar
Acushnet MA 2 (CSG)	Navisun LLC	Acushnet, MA	1 GWh	Feb 2024	Dec 2024	Solar
Dusenberry	AES Distributed Energy	Troy, NY	8 GWh	Nov 2021	Dec 2024	Solar
Knapp East (CSG)	AES Distributed Energy	Akron, NY	7 GWh	Nov 2021	Dec 2024	Solar
Main Rd Community Solar	AES Distributed Energy	Newstead, NY	8 GWh	Jun 2022	Dec 2024	Solar
Glenmere Lake	AES Distributed Energy	Goshen, NY	4 GWh	May 2021	Dec 2024	Solar
Knapp West(CSG)	AES Distributed Energy	Akron, NY	7 GWh	Nov 2021	Dec 2024	Solar
Rowe (CSG)	AES Distributed Energy	Olean, NY	8 GWh	Oct 2021	Dec 2024	Solar
Redman South Community Solar	AES Distributed Energy	Brockport, NY	10 GWh	Jan 2022	Dec 2024	Solar
Alton Road Solar	Revity Energy LLC	Bradford, RI	24 GWh	Nov 2019	Dec 2024	Solar
Townline Community Solar	AES Distributed Energy	Batavia, NY	7 GWh	Jan 2022	Dec 2024	Solar
Williams Rd	AES Distributed Energy	Ransomville, NY	6 GWh	Aug 2021	Dec 2024	Solar
West Haydenville PJ Community Solar	AES Distributed Energy	Williamsburg, MA	9 GWh	Aug 2022	Dec 2024	Solar
Brookwood Drive Community Solar	AES Distributed Energy	Westport, MA	7 GWh	Jul 2022	Dec 2024	Solar
Maple(CSG)	Maple Street Solar 1, LLC	Bellingham, MA	7 GWh	Oct 2021	Dec 2024	Solar
FDX010.0 FedEx Fuel Cell	2016 ESA Project Company, LLC	Middletown, CT	8 GWh	Aug 2018	Dec 2024	Natural Gas
Old Middleboro Road Solar	Agilitas Energy, Inc.	Rochester, MA	11 GWh	Dec 2022	Dec 2024	Solar
Kearsarge Westerly	Kearsarge Westerly LLC	Westerly, RI	7 GWh	Nov 2020	Dec 2024	Solar
Kearsarge Fogland	Kearsarge Fogland LLC	Tiverton, RI	3 GWh	Oct 2020	Dec 2024	Solar
Kearsarge East Providence	Kearsarge East Providence LLC	East Providence, RI	3 GWh	Nov 2020	Dec 2024	Solar
Three Rivers Solar LLC	ASD Three Rivers Road MA Solar LLC	Wilbraham, MA	154 MWh	Oct 2024	Dec 2024	Solar
Billings Road	Greenbacker Renewable Energy Corporation	Hardwick, VT	2 GWh	Oct 2021	Dec 2024	Solar
ER Salvage Yard	Greenbacker Renewable Energy Corporation	Morrisville, VT	3 GWh	Oct 2021	Dec 2024	Solar
276 Federal Rd(CSG)	276FED WHAM8 Solar, LLC	Carver, MA	10 GWh	Oct 2021	Dec 2024	Solar
0 Hammond St CSG	0HAM WHAM8 Solar, LLC	Carver, MA	14 GWh	Sep 2021	Dec 2024	Solar
59 Federal Rd(CSG)	59FED WHAM8 Solar, LLC	Carver, MA	11 GWh	Oct 2021	Dec 2024	Solar
Park St	Greenbacker Renewable Energy Corporation	Rutland, VT	2 GWh	Nov 2014	Dec 2024	Solar
Torrington Solar One, LLC	DG Connecticut III, LLC	Torrington, CT	3 GWh	Feb 2021	Dec 2024	Solar
Bristol Solar One, LLC	DG Connecticut III, LLC	Bristol, CT	5 GWh	Apr 2021	Dec 2024	Solar
Watertown Solar One, LLC	DG Connecticut III, LLC	Watertown, CT	3 GWh	May 2021	Dec 2024	Solar
UMass Boston	MSS Energy Holdings, LLC (d.b.a. Calibrant Energy)	Dorchester, MA	1 GWh	Dec 1971	Dec 2024	Solar
ASD Cotuit MA Solar LLC	ASD Cotuit MA Solar LLC	Sandwich, MA	2 GWh	Oct 2023	Dec 2024	Solar
ASD Wallum MA Solar LLC(CSG)	ASD Wallum MA Solar LLC	Douglas, MA	9 GWh	Dec 2021	Dec 2024	Solar
BWC Maces Pond LLC	Navisun LLC	Rockport, ME	5 GWh	Nov 2021	Dec 2024	Solar
Griffin Road Solar 2	Griffin Road Solar 2, LLC	Charlton, MA	2 GWh	May 2020	Dec 2024	Solar
Settlers Solar	Settlers Solar, LLC	Lunenberg, MA	8 GWh	Nov 2020	Dec 2024	Solar
Long Plain Solar	Long Plain Solar, LLC	Whatley, MA	4 GWh	Nov 2019	Dec 2024	Solar
Kearsarge Acushnet	Kearsarge Acushnet LLC	Acushnet, MA	3 GWh	Jan 2020	Dec 2024	Solar
Kearsarge Ludlow LLC	Kearsarge Ludlow LLC	Ludlow, MA	6 GWh	Nov 2020	Dec 2024	Solar
Faunce Corner Community Solar	Faunce Corner Road Dartmouth Solar 1, LLC	Dartmouth, MA	2 GWh	Jun 2022	Dec 2024	Solar
Southington Solar One	DG Connecticut III, LLC	Southington, CT	9 GWh	Jan 2022	Dec 2024	Solar
East Windsor Solar One	DG Connecticut III, LLC	East Windsor, CT	9 GWh	Nov 2021	Dec 2024	Solar
TES Rowtier	SkyHigh 2 Solar	Westminster, MA	5 GWh	Mar 2021	Dec 2024	Solar
Brockelman Road Solar 2	Brockelman Road Solar 2, LLC	Lancaster, MA	2 GWh	Jul 2021	Dec 2024	Solar
MA-Dighton-A	MA CS Dighton, LLC	Dighton, MA	2 GWh	May 2024	Dec 2024	Solar
Foster Solar	Foster Solar, LLC	North Scituate, RI	2 GWh	Jul 2016	Dec 2024	Solar
Dartmouth Farms Solar	Dartmouth Farms Solar, LLC	Dartmouth, MA	4 GWh	Oct 2017	Dec 2024	Solar
ER Sand Hill	Greenbacker Renewable Energy Corporation	Castleton, VT	4 GWh	Oct 2022	Dec 2024	Solar
Wachusett Solar	Wachusett Solar, LLC	Rutland, MA	4 GWh	Jul 2019	Dec 2024	Solar
Whatley Renewables	Whatley Renewables, LLC	Whatley, MA	2 GWh	Sep 2020	Dec 2024	Solar
Bradford Solar	Bradford Solar, LLC	Haverhill, MA	8 GWh	Mar 2017	Dec 2024	Solar
Truck Stop	LSE Corona Austrina LLC	West Stockridge, MA	3 GWh	Oct 2017	Dec 2024	Solar
Nolan	LSE Crater LLC	Great Barrington, MA	2 GWh	Oct 2017	Dec 2024	Solar
Monmouth	Maine DG Solar Monmouth, LLC	Monmouth, ME	9 GWh	Feb 2022	Dec 2024	Solar
Augusta	Maine DG Solar Augusta, LLC	Augusta, ME	5 GWh	Feb 2022	Dec 2024	Solar
Baldwin (ME)	Maine DG Solar Baldwin, LLC	West Baldwin, ME	10 GWh	Feb 2022	Dec 2024	Solar
Green Providence Wind II, LLC	Green Providence Wind II, LLC	Providence, RI	4 GWh	Nov 2021	Dec 2024	Wind
Green Providence Wind I, LLC	Green Providence Wind I, LLC	Providence, RI	2 GWh	Nov 2021	Dec 2024	Wind
GDIM 4, LLC	GDIM 4, LLC	North Smithfield, RI	14 GWh	Nov 2021	Dec 2024	Solar
GDIM 3, LLC	GDIM 3, LLC	North Smithfield, RI	15 GWh	Nov 2021	Dec 2024	Solar
GDIM 2, LLC	GDIM 2, LLC	North Smithfield, RI	13 GWh	Nov 2021	Dec 2024	Solar
GDIM 1, LLC	GDIM 1, LLC	North Smithfield, RI	14 GWh	Nov 2021	Dec 2024	Solar
GD Johnson Scituate I, LLC	GD Johnson Scituate I, LLC	Cranston, RI	6 GWh	Nov 2021	Dec 2024	Solar
Unity Solar	Madison Energy Holdings LLC	Unity, ME	8 GWh	Nov 2021	Dec 2024	Solar
Hartland Solar	Madison Energy Holdings LLC	Hartland, ME	7 GWh	Nov 2021	Dec 2024	Solar
UMass PV Lot 22	Consolidated Edison Development Inc.	Amherst, MA	3 GWh	Aug 2022	Dec 2024	Solar
Enfield Solar One	Enfield Solar One, LLC	Hartford, CT	5 GWh	Mar 2024	Dec 2024	Solar
71 Charlotte Furnace Rd Hybrid(CSG)	71CFR WHAM8 Solar, LLC	Wareham, MA	2 GWh	Nov 2021	Dec 2024	Solar
77 Farm to Market Rd Hybrid(CSG)	77F2M WHAM8 Solar, LLC	Wareham, MA	9 GWh	Nov 2021	Dec 2024	Solar
160 Tihonet Rd Hybrid(CSG)	160TIH WHAM8 Solar, LLC	Wareham, MA	10 GWh	Nov 2021	Dec 2024	Solar
299 Farm to Market Rd Hybrid(CSG)	299F2M WHAM8 Solar, LLC	Wareham, MA	6 GWh	Nov 2021	Dec 2024	Solar
Halifax Solar	NuGen Capital Management	Halifax, MA	4 GWh	Jul 2015	Dec 2024	Solar
580 River Solar	NuGen Capital Management	Winchendon, MA	5 GWh	Aug 2018	Dec 2024	Solar
115 G Fisher	Greenbacker Renewable Energy Corporation	Middleborough, MA	1 GWh	Sep 2015	Dec 2024	Solar
154 D Fisher	Greenbacker Renewable Energy Corporation	Middleborough, MA	2 GWh	Nov 2015	Dec 2024	Solar
North Haven Solar One	North Haven Solar One, LLC	North Haven, CT	3 GWh	Feb 2024	Dec 2024	Solar
River Road	Norridgewock River Road Solar, LLC	Norridgewock, ME	8 GWh	Feb 2022	Dec 2024	Solar
196 Tremont St(CSG)	196TRE WHAM8 Solar, LLC	Carver, MA	4 GWh	Oct 2021	Dec 2024	Solar
ER Bone Hill Solar, LLC	Greenbacker Renewable Energy Corporation	Northfield, VT	2 GWh	Aug 2022	Dec 2024	Solar
Bristol Landfill Solar	NuGen Capital Management	Bristol, RI	8 GWh	Feb 2024	Dec 2024	Solar
Clinton Solar	Ecos Energy LLC	Griswold, CT	2 GWh	Apr 2021	Dec 2024	Solar
Woburn	Greenbacker Renewable Energy Corporation	Woburn, MA	2 GWh	Nov 2020	Dec 2024	Solar
MA CS Uxbridge Community Solar	MA CS Uxbridge, LLC	Uxbridge, MA	7 GWh	Jan 2023	Dec 2024	Solar
McHenry Solar	Ecos Energy LLC	Hampton, CT	2 GWh	Sep 2021	Dec 2024	Solar
MacKinnon Solar	Ecos Energy LLC	Rutland, VT	3 GWh	Jul 2021	Dec 2024	Solar
Gorham Solar 1 (CSG)	CleanCapital Holdings	Gorham, ME	8 GWh	Oct 2023	Dec 2024	Solar
Indian River Hydro	Eagle Creek Renewable Energy, LLC	Russell, MA	1 GWh	Nov 1909	Dec 2024	Water
Barrow Solar	Ecos Energy LLC	Somers, CT	3 GWh	May 2021	Dec 2024	Solar
Fairhaven E	Fairhaven MA 1, LLC	Fairhaven, MA	3 GWh	Jul 2021	Dec 2024	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	696.7 GWh	4
#25	Dominion Energy South Carolina, Inc.	25.7 TWh	87
#13	Duke Energy Carolinas	112.5 TWh	565
#17	Duke Energy Progress East	64.3 TWh	559
#52	Duke Energy Progress West	4.3 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.4 TWh	25
#12	New York Independent System Operator	131.6 TWh	1,211
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#30	South Carolina Public Service Authority	18.9 TWh	34
#59	Southeastern Power Administration	1.5 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#7	California Independent System Operator	188.0 TWh	2,075
#9	Tennessee Valley Authority	161.6 TWh	204
#10	Florida Power & Light Co.	148.9 TWh	187
#12	New York Independent System Operator	131.6 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565
#15	ISO New England	105.5 TWh	1,577
#16	Bonneville Power Administration	80.5 TWh	163
#17	Duke Energy Progress East	64.3 TWh	559
#18	PacifiCorp East	61.1 TWh	216
#19	Salt River Project Agricultural Improvement and Power District	60.0 TWh	48