ISO New England

Balancing Authority Summary Information

ISO New England is ranked #15 out of 64 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	Jul 2026
Annual Generation	111.1 TWh
Power Plants	1,629
Utilities	833
Ranked #15 out of 64 in terms of net annual generation
Ranked #10 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 54.9% Nuclear \| 25% Wind \| 5.1% Water \| 4.5% Other Fuel \| 4.4% Solar \| 1.6% Coal \| 0.1%

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

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
59 Federal Rd(CSG)	59FED WHAM8 Solar, LLC	Carver, MA	11 GWh	Oct 2021	Dec 2024	Solar
276 Federal Rd(CSG)	276FED WHAM8 Solar, LLC	Carver, MA	10 GWh	Oct 2021	Dec 2024	Solar
ER Salvage Yard	Altus Power America Management, LLC	Morrisville, VT	3 GWh	Oct 2021	Dec 2025	Solar
Billings Road	Altus Power America Management, LLC	Hardwick, VT	2 GWh	Oct 2021	Dec 2025	Solar
Maple(CSG)	Maple Street Solar 1, LLC	Bellingham, MA	7 GWh	Oct 2021	Dec 2024	Solar
Rowe (CSG)	AES Distributed Energy	Olean, NY	8 GWh	Oct 2021	Dec 2025	Solar
Kearsarge Montague BD(CSG)	Kearsarge Montague BD LLC	Montague, MA	3 GWh	Oct 2021	Dec 2025	Solar
Golden Solar	Cardinal Renewables	St. Johnsbury, VT	4 GWh	Oct 2021	Dec 2025	Solar
RoxWind	RoxWind LLC	Roxbury, ME	44 GWh	Oct 2021	Dec 2025	Wind
0 Hammond St CSG	0HAM WHAM8 Solar, LLC	Carver, MA	14 GWh	Sep 2021	Dec 2024	Solar
Farmington Solar	Farmington Solar, LLC	Farmington, ME	125 GWh	Sep 2021	May 2026	Solar
ZPD-PT Solar Project 2017-044 LLC CSG	AES Distributed Energy	Spencer, MA	812 MWh	Sep 2021	Dec 2025	Solar
McHenry Solar	Ecos Energy LLC	Hampton, CT	2 GWh	Sep 2021	Dec 2025	Solar
Generate Colchester Fuel Cells, LLC	Generate Colchester Fuel Cells, LLC	Colchester, CT	72 GWh	Sep 2021	Dec 2025	Natural Gas
Emerald Gardens PKI, LLC	Emerald Gardens PKI, LLC	Shelton, CT	2 GWh	Sep 2021	Dec 2025	Solar
Lenox Renewables	Lenox Renewables, LLC	Canastota, NY	6 GWh	Aug 2021	Dec 2025	Solar
Falmouth 2 Solar	Citizens Enterprises Corporation	Falmouth, MA	3 GWh	Aug 2021	Dec 2025	Solar
Aegean Drive Solar	Aegean Drive Solar LLC	Methuen, MA	2 GWh	Aug 2021	Dec 2025	Solar
Apollo	Sunrise on Wing Ln. LLC	Acushnet, MA	2 GWh	Aug 2021	Dec 2024	Solar
Charlemont A	Agilitas Energy, Inc.	Charlemont, MA	3 GWh	Aug 2021	Dec 2025	Solar
Equinix - Billerica	Bloom Energy	Billerica, MA	14 GWh	Aug 2021	Dec 2025	Natural Gas
Williams Rd	AES Distributed Energy	Ransomville, NY	6 GWh	Aug 2021	Dec 2025	Solar
Fairhaven MA 2	RWE Clean Energy	Fairhaven, MA	4 GWh	Aug 2021	Dec 2025	Solar
Fredonia Solar LLC	Altus Power America Management, LLC	Fredonia, NY	1 GWh	Aug 2021	Dec 2025	Solar
Wallingford Solar	Wallingford Renewable Energy, LLC	Wallingford, CT	15 GWh	Aug 2021	Dec 2025	Solar
BWC Muddy Brook, LLC Hybrid	AES Distributed Energy	Mendon, MA	2 GWh	Aug 2021	Dec 2025	Solar : 99.8%
Williamsville Hybrid CSG	147 Williamsville Solar 1, LLC	Hubbardston, MA	9 GWh	Aug 2021	Dec 2024	Solar
Wilbur Woods Solar LLC	AES Distributed Energy	Orange, MA	8 GWh	Aug 2021	Dec 2025	Solar
W. Orange Rd Solar LLC	AES Distributed Energy	Orange, MA	8 GWh	Aug 2021	Dec 2025	Solar
Lane Ave Solar LLC	AES Distributed Energy	North Brookfield, MA	2 GWh	Aug 2021	Dec 2025	Solar
Blodgett Solar CSG	Blodgett Street Solar 1, LLC	Tyngsboro, MA	10 GWh	Jul 2021	Dec 2024	Solar
Fairhaven E	Agilitas Energy, Inc.	Fairhaven, MA	3 GWh	Jul 2021	Dec 2025	Solar
MacKinnon Solar	Ecos Energy LLC	Rutland, VT	3 GWh	Jul 2021	Dec 2025	Solar
Brockelman Road Solar 2	Brockelman Road Solar 2, LLC	Lancaster, MA	2 GWh	Jul 2021	Dec 2025	Solar
ZPD-PT Solar Project 2017-006 LLC Hybrid	AES Distributed Energy	Warren, MA	6 GWh	Jun 2021	Dec 2025	Solar
BWC Stony Brook, LLC Hybrid	AES Distributed Energy	Chelmsford, MA	2 GWh	Jun 2021	Dec 2025	Solar
Randall Solar Project Hybrid	AES Distributed Energy	Berlin, MA	9 GWh	Jun 2021	Dec 2025	Solar
Granby Solar, LLC CSG	Granby Solar, LLC	Granby, MA	6 GWh	Jun 2021	Dec 2025	Solar
Watertown Solar One, LLC	DG Connecticut III, LLC	Watertown, CT	3 GWh	May 2021	Dec 2025	Solar
Glenmere Lake	AES Distributed Energy	Goshen, NY	3 GWh	May 2021	Dec 2025	Solar
Ware Palmer Road Solar LLC CSG	Ware Palmer Road Solar LLC	Ware, MA	5 GWh	May 2021	Dec 2024	Solar
Amaterasu LLC	AES Distributed Energy	Lancaster, MA	7 GWh	May 2021	Dec 2025	Solar
Oxford PV - BD Solar Oxford LLC	BD Solar Oxford LLC	Oxford, ME	13 GWh	May 2021	Dec 2025	Solar
Fairfield PV - BD Solar Fairfield LLC	BD Solar Fairfield LLC	Fairfield, ME	9 GWh	May 2021	Dec 2025	Solar
Augusta PV - BD Solar Augusta LLC	BD Solar Augusta LLC	Augusta, ME	9 GWh	May 2021	Dec 2025	Solar
Milo PV - BD Solar 1 LLC	BD Solar 1 LLC	Milo, ME	25 GWh	May 2021	Dec 2025	Solar
Syncarpha Leicester Hybrid CSG	Syncarpha Leicester, LLC	Leicester, MA	4 GWh	May 2021	Dec 2025	Solar
10 Briggs Solar NG, LLC (East)	NuGen Capital Management	East Greenwich, RI	8 GWh	May 2021	Dec 2025	Solar
Barrow Solar	Ecos Energy LLC	Somers, CT	3 GWh	May 2021	Dec 2025	Solar
Nationwide	Nationwide Solar Energy LLC	Lancaster, MA	5 GWh	May 2021	Dec 2025	Solar
North Nobleboro Road, LLC	REA Investments, LLC	Waldoboro, ME	4 GWh	May 2021	Dec 2025	Solar
Perkins Road Belfast Solar, LLC	REA Investments, LLC	Belfast, ME	9 GWh	May 2021	Dec 2025	Solar
New Marlborough	Sunrise on Knight Rd. LLC	New Marlborough, MA	7 GWh	May 2021	Dec 2024	Solar
Manville Hill Road Solar	Manville Hill Road Solar LLC	Cumberland, RI	7 GWh	Apr 2021	Dec 2025	Solar
Clinton Solar	Ecos Energy LLC	Griswold, CT	2 GWh	Apr 2021	Dec 2025	Solar
Bristol Solar One, LLC	DG Connecticut III, LLC	Bristol, CT	5 GWh	Apr 2021	Dec 2025	Solar
BWC Lake Lashaway, LLC Hybrid	AES Distributed Energy	North Brookfield, MA	8 GWh	Apr 2021	Dec 2025	Solar : 99.4% Electricity used for energy storage : 0.6%
Dunstable Solar 1, LLC	AES Distributed Energy	Dunstable, MA	8 GWh	Mar 2021	Dec 2025	Solar
ZPD-PT Solar Project 2017-038 Hybrid LLC	AES Distributed Energy	Lancaster, MA	8 GWh	Mar 2021	Dec 2025	Solar
Syncarpha Northbridge II Hybrid CSG	Syncarpha Northbridge II, LLC	Whitinsville, MA	8 GWh	Mar 2021	Dec 2025	Solar
TES Rowtier	SkyHigh 2 Solar	Westminster, MA	10 GWh	Mar 2021	Dec 2025	Solar
Seaboard Sheffield, LLC	Navisun LLC	Sheffield, MA	2 GWh	Mar 2021	Dec 2025	Solar
3104 Batavia Solar	3104 Batavia Solar, LLC	Batavia, NY	5 GWh	Feb 2021	Dec 2025	Solar
3232 Batavia Solar	3232 Batavia Solar, LLC	Batavia, NY	7 GWh	Feb 2021	Dec 2025	Solar
Marlborough Solar	Marlborough Solar, LLC	Milton, NY	3 GWh	Feb 2021	Dec 2025	Solar
ENGIE 2019 ProjectCo-MA1, LLC	ENGIE 2019 ProjectCo MA-1, LLC	Agawam, MA	5 GWh	Feb 2021	Jul 2025	Solar
Cranberry Highway Solar LLC	Cranberry Highway Solar, LLC	Wareham, MA	3 GWh	Feb 2021	Dec 2025	Solar
Torrington Solar One, LLC	DG Connecticut III, LLC	Torrington, CT	3 GWh	Feb 2021	Dec 2025	Solar
Kearsarge Haverhill	Kearsarge Haverhill LLC	Haverhill, MA	4 GWh	Feb 2021	Dec 2025	Solar
Raboth - Marion Drive	Madison Energy Holdings LLC	Kingston, MA	4 GWh	Feb 2021	Dec 2025	Solar
Roger Williams - Melville at Portsmouth	Luminace Solar Rhode Island, LLC	Portsmouth, RI	5 GWh	Feb 2021	Dec 2025	Solar
Syncarpha Puddon II Hybrid CSG	Syncarpha Puddon II, LLC	Northbridge, MA	8 GWh	Feb 2021	Dec 2025	Solar
Syncarpha Puddon I Hybrid CSG	Syncarpha Puddon I, LLC	Northbridge, MA	8 GWh	Feb 2021	Dec 2025	Solar
CP East Hampton I & II Solar	NJR Clean Energy Ventures Corporation	East Hampton, CT	3 GWh	Jan 2021	Dec 2024	Solar
Jericho Gravel Solar Farm	SoCore Energy LLC	Jerico, VT	2 GWh	Dec 2020	Dec 2025	Solar
Jericho Landfill Solar Farm	SoCore Energy LLC	Jerico, VT	1 GWh	Dec 2020	Dec 2025	Solar
Dresser Hill CSG	Dresser Hill Solar, LLC	Southbridge, MA	6 GWh	Dec 2020	Dec 2025	Solar
Few Solar	Ecos Energy LLC	Somers, CT	2 GWh	Dec 2020	Dec 2025	Solar
Madison Solar (CT)	Ecos Energy LLC	Somers, CT	2 GWh	Dec 2020	Dec 2025	Solar
Blair Solar	Ecos Energy LLC	Somers, CT	2 GWh	Dec 2020	Dec 2025	Solar
ZPD-PT Solar Project 2017-021 LLC Hybrid	AES Distributed Energy	Wilbraham, MA	2 GWh	Dec 2020	Dec 2025	Solar
ZPD-PT Solar Project 2017-023 LLC Hybrid	AES Distributed Energy	Southbridge, MA	4 GWh	Dec 2020	Dec 2025	Solar : 99.9%
Woburn	Greenbacker Renewable Energy Corporation	Woburn, MA	2 GWh	Nov 2020	Dec 2025	Solar
Kearsarge East Providence	Kearsarge East Providence LLC	East Providence, RI	4 GWh	Nov 2020	Dec 2025	Solar
Kearsarge Westerly	Kearsarge Westerly LLC	Westerly, RI	7 GWh	Nov 2020	Dec 2025	Solar
Clark Road Solar 1, LLC	Clark Road Solar 1, LLC	Gardner, MA	8 GWh	Nov 2020	Dec 2025	Solar
Elm Street	ISM Solar Dighton 3, LLC	Dighton, MA	5 GWh	Nov 2020	Dec 2025	Solar
Wilbraham	BWC East Brook, LLC	Wilbraham, MA	6 GWh	Nov 2020	Dec 2025	Solar
GD Glocester White Oak I, LLC	GD Glocester White Oak I, LLC	Glocester, RI	3 GWh	Nov 2020	Dec 2025	Solar
WED Coventry Seven, LLC	WED Coventry Seven, LLC	Coventry, RI	5 GWh	Nov 2020	Dec 2025	Solar
Lawrence Brook	Greenbacker Renewable Energy Corporation	Morristown, VT	3 GWh	Nov 2020	Dec 2025	Solar
Blackhorse Farm Solar, LLC CSG	AES Distributed Energy	Warren, RI	6 GWh	Nov 2020	Dec 2025	Solar
East Brookfield Main Street Solar LLC CS	AES Distributed Energy	East Brookfield, MA	1 GWh	Nov 2020	Dec 2025	Solar
ISM Solar Cranston CSG	Nautilus Solar Solutions	Cranston, RI	4 GWh	Nov 2020	Dec 2025	Solar
Nutmeg Solar	Nutmeg Solar LLC	Enfield, CT	35 GWh	Nov 2020	Dec 2025	Solar
Annese Solar Project Hybrid CSG	AES Distributed Energy	Southbridge, MA	8 GWh	Nov 2020	Dec 2025	Solar : 99.1% Electricity used for energy storage : 0.9%
West A&B Solar Project Hybrid CSG	AES Distributed Energy	Southbridge, MA	5 GWh	Nov 2020	Dec 2025	Solar
Alicea Solar Project Hybrid CSG	AES Distributed Energy	Southbridge, MA	4 GWh	Nov 2020	Dec 2025	Solar
Sutton Solar 2, LLC CSG	Sutton Solar 2, LLC	Sutton, MA	1 GWh	Nov 2020	Dec 2025	Solar
Weaver Wind	Greenbacker Renewable Energy Corporation	Township 16, ME	214 GWh	Nov 2020	May 2026	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	442.5 GWh	4
#24	Dominion Energy South Carolina, Inc.	25.3 TWh	83
#13	Duke Energy Carolinas	112.6 TWh	577
#17	Duke Energy Progress East	64.5 TWh	565
#50	Duke Energy Progress West	4.5 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#12	New York Independent System Operator	134.3 TWh	1,299
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#31	South Carolina Public Service Authority	18.5 TWh	35
#59	Southeastern Power Administration	1.3 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577
#15	ISO New England	111.1 TWh	1,629
#16	Bonneville Power Administration	91.6 TWh	167
#17	Duke Energy Progress East	64.5 TWh	565
#18	PacifiCorp East	60.9 TWh	222
#19	Salt River Project Agricultural Improvement and Power District	60.3 TWh	49