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	Oct 2026
Annual Generation	112.2 TWh
Power Plants	1,667
Utilities	846
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% Nuclear \| 25.3% Wind \| 5.7% Water \| 4.6% Other Fuel \| 4.5% Solar \| 1.6% Coal \| 0%

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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
ZPD-PT Solar Project 2017-023 LLC Hybrid	AES Distributed Energy	Southbridge, MA	4 GWh	Dec 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
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	215 GWh	Nov 2020	Jul 2026	Wind
Syncarpha Northampton Hybrid CSG	Syncarpha Northampton, LLC	Northampton, MA	5 GWh	Nov 2020	Dec 2025	Solar
Syncarpha Halifax Hybrid CSG	Syncarpha Halifax, LLC	Halifax, MA	3 GWh	Nov 2020	Dec 2025	Solar
Woburn	Greenbacker Renewable Energy Corporation	Woburn, MA	2 GWh	Nov 2020	Dec 2025	Solar
Kearsarge Ludlow LLC	Kearsarge Ludlow LLC	Ludlow, MA	6 GWh	Nov 2020	Dec 2025	Solar
Settlers Solar	Settlers Solar, LLC	Lunenberg, MA	7 GWh	Nov 2020	Dec 2025	Solar
Cream Street Solar	Cream Street Solar, LLC	Hyde Park, NY	4 GWh	Nov 2020	Dec 2025	Solar
1639 RT 29 Solar 1	1639 RT 29 Solar 1, LLC	Gloversville, NY	7 GWh	Nov 2020	Dec 2025	Solar
1639 RT 29 Solar 2	1639 RT 29 Solar 2, LLC	Gloversville, NY	4 GWh	Nov 2020	Dec 2025	Solar
Sugar Hill Solar 1	Sugar Hill Solar 1, LLC	Clifton Park, NY	8 GWh	Nov 2020	Dec 2025	Solar
Seaboard Charlton, LLC	Navisun LLC	Charlton, MA	3 GWh	Nov 2020	Dec 2025	Solar
BWC Rams Horn Channel LLC	Navisun LLC	Beverly, MA	6 GWh	Nov 2020	Dec 2025	Solar
Powder Hill	LSE Delphinus LLC	Enfield, CT	3 GWh	Nov 2020	Dec 2025	Solar
Tolland	Sunrise on Clubhouse Rd. LLC	Tolland, MA	8 GWh	Nov 2020	Dec 2025	Solar
Westhampton	Sunrise on Montague Rd. LLC	Westhampton, MA	7 GWh	Nov 2020	Dec 2025	Solar
1519 Crandall Road	1519 Crandall Road LLC	Tiverton, RI	6 GWh	Nov 2020	Dec 2025	Solar
Peru (MA)	Sunrise on West Main Rd. LLC	Peru, MA	4 GWh	Oct 2020	Dec 2025	Solar
Russell (MA)	Sunrise on Blandford Rd. LLC	Russell, MA	5 GWh	Oct 2020	Dec 2025	Solar
Kearsarge Fogland	Kearsarge Fogland LLC	Tiverton, RI	3 GWh	Oct 2020	Dec 2025	Solar
Breckenridge Solar	Breckenridge Street Solar 1, LLC	Palmer, MA	6 GWh	Oct 2020	Dec 2025	Solar
GD Hopkinton Main I, LLC	GD Hopkinton Main I, LLC	Hopkinton, RI	16 GWh	Oct 2020	Dec 2025	Solar
Sanford Solar	Sanford Airport Solar, LLC	Sanford, ME	89 GWh	Oct 2020	Jul 2026	Solar
Hopkins Hill CSG	Nautilus Solar Solutions	West Greenwich, RI	10 GWh	Oct 2020	Dec 2025	Solar
Holliston LLC	Greenbacker Renewable Energy Corporation	Holliston, MA	2 GWh	Sep 2020	Dec 2025	Solar
Town of Burrillville Solar CSG	Standard Solar	Burrillville, RI	7 GWh	Sep 2020	Dec 2025	Solar
Medtronic - New Haven 2	Bloom Energy	North Haven, CT	17 GWh	Sep 2020	Dec 2025	Natural Gas
Medtronic - New Haven	Bloom Energy	North Haven, CT	18 GWh	Sep 2020	Dec 2025	Natural Gas
Whatley Renewables	Whatley Renewables, LLC	Whatley, MA	2 GWh	Sep 2020	Dec 2025	Solar
LR Wheatfield Solar 1	LR Wheatfield Solar 1, LLC	Wheatfield, NY	8 GWh	Sep 2020	Dec 2025	Solar
Pendleton Solar 1	Pendleton Solar 1, LLC	Lockport, NY	7 GWh	Sep 2020	Dec 2025	Solar
Little Falls Solar	Little Falls Solar	Little Falls, NY	3 GWh	Sep 2020	Dec 2025	Solar
Westport (MA)	Sunrise on Drift Rd. LLC	Westport, MA	3 GWh	Sep 2020	Dec 2025	Solar
Little Falls Solar 1	Little Falls Solar 1, LLC	Little Falls, NY	3 GWh	Aug 2020	Dec 2025	Solar
CoreSite - Somerville	Bloom Energy	Somerville, MA	28 GWh	Aug 2020	Dec 2025	Natural Gas
Norton LLC	Greenbacker Renewable Energy Corporation	Norton, MA	1 GWh	Aug 2020	Dec 2025	Solar
Easthampton CSG	Easthampton Park Solar 1, LLC	Easthampton, MA	3 GWh	Aug 2020	Dec 2025	Solar
Erving CSG	Erving Poplar Mountain Solar 1, LLC	Erving, MA	1 GWh	Aug 2020	Dec 2025	Solar
Hopkinton Phase 2	Vista Solar, Inc.	Ashaway, RI	4 GWh	Aug 2020	Dec 2025	Solar
Pine Hill	Onsite Partners, LLC	Johnston, RI	8 GWh	Jul 2020	Dec 2025	Solar
McDougle-Mitchell Solar Project Hybrid C	AES Distributed Energy	Charlton, MA	7 GWh	Jul 2020	Dec 2025	Solar
Woodland Avenue Solar 1	Woodland Avenue Solar 1, LLC	Seekonk, MA	9 GWh	Jul 2020	Dec 2025	Solar
Seaboard Oxford, LLC	Navisun LLC	Oxford, MA	3 GWh	Jul 2020	Dec 2025	Solar
Smithfield Solar Farm, LLC	Smithfield Solar Farm	Smithfield, RI	4 GWh	Jun 2020	Dec 2025	Solar
Partridge Hill Solar Hybrid	AES Distributed Energy	Charlton, MA	3 GWh	Jun 2020	Dec 2025	Solar
28 Livermore Hill Road Solar	28 Livermore Hill Road Solar, LLC	Westminster, MA	7 GWh	May 2020	Dec 2025	Solar
Sunpin Blandford	Blandford Sun, LLC	Southwick, MA	6 GWh	May 2020	Dec 2025	Solar
Cycz Solar Project CSG Hybrid	AES Distributed Energy	Spencer, MA	3 GWh	May 2020	Dec 2025	Solar
Dickinson Solar (CT)	Ecos Energy LLC	Hampton, CT	2 GWh	May 2020	Dec 2025	Solar
Sydney Solar	Ecos Energy LLC	Hampton, CT	3 GWh	May 2020	Dec 2025	Solar
Cronin Road Solar 1, LLC CSG Hybrid	AES Distributed Energy	Warren, MA	3 GWh	May 2020	Dec 2025	Solar
Griffin Road Solar 2	Griffin Road Solar 2, LLC	Charlton, MA	2 GWh	May 2020	Dec 2025	Solar
Plainfield Solar 2	Ecos Energy LLC	Plainfield, CT	2 GWh	Mar 2020	Dec 2025	Solar
Fitchburg Renewables	Fitchburg Renewables, LLC	Fitchburg, MA	6 GWh	Feb 2020	Dec 2025	Solar
Hurteau Solar Project Hybrid	AES Distributed Energy	Uxbridge, MA	3 GWh	Feb 2020	Dec 2025	Solar
South Windsor Fuel Cell	South Energy Investments LLC	South Windsor, CT	37 GWh	Feb 2020	Dec 2025	Natural Gas
RT405 Westerlo Solar 2	RT405 Westerlo Solar 2, LLC	Albany, NY	8 GWh	Feb 2020	Dec 2025	Solar
Spencer Solar MA	Citizens Enterprises Corporation	Spencer, MA	4 GWh	Feb 2020	Dec 2025	Solar
Kearsarge Acushnet	Kearsarge Acushnet LLC	Acushnet, MA	3 GWh	Jan 2020	Dec 2025	Solar
Oxford Solar	Citizens Enterprises Corporation	Oxford, MA	5 GWh	Jan 2020	Dec 2025	Solar
Wilmarth Solar	Wilmarth Lane Solar 1, LLC	Plainville, MA	8 GWh	Jan 2020	Dec 2025	Solar
Rounseville Solar	Rounseville Solar 1, LLC	Rochester, MA	4 GWh	Jan 2020	Dec 2025	Solar
Plainfield Solar 1	Ecos Energy LLC	Plainfield, CT	2 GWh	Dec 2019	Dec 2025	Solar
Partridgeville Hybrid CSG	Partridgeville Road Solar 1, LLC	Athol, MA	5 GWh	Dec 2019	Dec 2025	Solar
Goose Pond Solar	LSE Dorado, LLC	Southwick, MA	7 GWh	Dec 2019	Dec 2025	Solar
Alton Road Solar	Revity Energy LLC	Bradford, RI	24 GWh	Nov 2019	Dec 2025	Solar
Hadley 3 Solar (South)	Hadley 3 Solar, LLC (South)	Hadley, MA	3 GWh	Nov 2019	Dec 2025	Solar
Hadley 3 Solar (North)	Hadley 3 Solar, LLC (North)	Hadley, MA	3 GWh	Nov 2019	Dec 2025	Solar
Montague Road Solar	Montague Road Solar, LLC	Amherst, MA	4 GWh	Nov 2019	Dec 2025	Solar
Oak Street Solar	Citizens Enterprises Corporation	Springfield, MA	5 GWh	Nov 2019	Dec 2025	Solar
University Solar, LLC	AES Distributed Energy	West Greenwich, RI	29 GWh	Nov 2019	Jul 2026	Solar
One Patriot	Bloom Energy	Foxborough, MA	17 GWh	Nov 2019	Dec 2025	Natural Gas
Kearsarge Amesbury Hybrid	Kearsarge Amesbury LLC	Amesbury, MA	5 GWh	Nov 2019	Dec 2025	Solar
CP Middletown Solar II LLC	Green Street Power Partners	Middletown, CT	2 GWh	Nov 2019	Dec 2025	Solar
CP Middletown Solar I LLC	Green Street Power Partners	Middletown, CT	2 GWh	Nov 2019	Dec 2025	Solar
Jackson Solar (CT)	Ecos Energy LLC	Griswold, CT	2 GWh	Nov 2019	Dec 2025	Solar
Sherman Solar	Ecos Energy LLC	Griswold, CT	2 GWh	Nov 2019	Dec 2025	Solar
West Street Solar 1 LLC	AES Distributed Energy	Gardner, MA	8 GWh	Nov 2019	Dec 2025	Solar
Syncarpha Blandford Hybrid CSG	Syncarpha Blandford, LLC	Blandford, MA	8 GWh	Nov 2019	Dec 2025	Solar
Holiday Hill Community Wind	Greenbacker Renewable Energy Corporation	Russell, MA	12 GWh	Nov 2019	Dec 2025	Wind
MHG Wallingford	Standard Solar	Wallingford, VT	3 GWh	Nov 2019	Dec 2025	Solar
CED Northampton Solar LLC Hybrid	RWE Clean Energy	Northampton, MA	6 GWh	Nov 2019	Dec 2025	Solar
DWW Solar ll	DWW Solar ll LLC	Simsbury, CT	47 GWh	Nov 2019	Jul 2026	Solar
GD West Greenwich Victory I, LLC	CleanCapital Holdings	West Greenwich, RI	3 GWh	Nov 2019	Dec 2025	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.0 GWh	4
#24	Dominion Energy South Carolina, Inc.	26.1 TWh	83
#13	Duke Energy Carolinas	113.4 TWh	578
#17	Duke Energy Progress East	66.2 TWh	574
#50	Duke Energy Progress West	4.6 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.2 TWh	25
#12	New York Independent System Operator	134.1 TWh	1,334
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#28	South Carolina Public Service Authority	19.6 TWh	35
#59	Southeastern Power Administration	1.2 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578
#15	ISO New England	112.2 TWh	1,667
#16	Bonneville Power Administration	91.1 TWh	170
#17	Duke Energy Progress East	66.2 TWh	574
#18	PacifiCorp East	61.4 TWh	223
#19	Salt River Project Agricultural Improvement and Power District	60.5 TWh	51