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
Exeter Ten (CSG)	Nautilus Solar Solutions	Exeter, RI	5 GWh	Nov 2024	Dec 2025	Solar
Exeter Mail CSG	Nautilus Solar Solutions	Exeter, RI	9 GWh	Dec 2024	Dec 2025	Solar
Exeter Renewables 1	AES Clean Energy	Exeter, RI	16 GWh	Nov 2024	Dec 2025	Solar
Platt Hill	LSE Pictor LLC	Winchester, CT	3 GWh	Dec 2021	Dec 2025	Solar
BNRG Masardis (CSG)	Nautilus Solar Solutions	Masardis, ME	4 GWh	Nov 2024	Dec 2025	Solar
BRNG Nicolin (CSG)	Nautilus Solar Solutions	Ellsworth, ME	6 GWh	Nov 2024	Dec 2025	Solar
BNRG Norridgewock (CSG)	Nautilus Solar Solutions	Norridgewock, ME	3 GWh	Oct 2024	Dec 2025	Solar
BNRG North Anson (CSG)	Nautilus Solar Solutions	North Anson, ME	3 GWh	Oct 2024	Dec 2025	Solar
Oakland	Nautilus Solar Solutions	Oakland, ME	9 GWh	Aug 2022	Dec 2025	Solar
Pomham Islander (CSG)	Nautilus Solar Solutions	North Smithfield, RI	1 GWh	Jun 2025	Dec 2025	Solar
Quarry	Nautilus Solar Solutions	North Berwick, ME	10 GWh	Nov 2022	Dec 2025	Solar
Ryans Ranch	Nautilus Solar Solutions	Paris, ME	5 GWh	May 2022	Dec 2025	Solar
Sabattus SB01	Nautilus Solar Solutions	Sabattus, ME	8 GWh	Sep 2023	Dec 2025	Solar
Sanford CGA	Nautilus Solar Solutions	Sanford, ME	8 GWh	May 2022	Dec 2025	Solar
Sanford -NY	Nautilus Solar Solutions	Sanford, ME	8 GWh	Jan 2024	Dec 2025	Solar
Shaker	Nautilus Solar Solutions	Gray, ME	6 GWh	Jun 2022	Dec 2025	Solar
700 Binnewater	Madison Energy Investments LLC	Rosendale, NY	2 GWh	Aug 2022	Dec 2025	Solar
665 Scenic Highway	Madison Energy Investments LLC	Bourne, MA	89 MWh	Nov 2022	Dec 2025	Solar
Farmington	Madison Energy Investments LLC	Farmington, ME	7 GWh	Nov 2023	Dec 2025	Solar
GSPP 7024 Fox Rd, LLC	Green Street Power Partners	Marcy, NY	6 GWh	Apr 2023	Dec 2025	Solar
GSPP NESV, LLC	Green Street Power Partners	Attleboro, MA	2 GWh	Feb 2023	Dec 2025	Solar
GSPP 4643 Twelve Corners Road, LLC	Green Street Power Partners	Auburn, NY	8 GWh	May 2023	Dec 2025	Solar
GSPP 126 Little Bow Rd N, LLC	Green Street Power Partners	Gouverneur, NY	7 GWh	Nov 2023	Dec 2025	Solar
GSPP 126 Little Bow Rd S, LLC	Green Street Power Partners	Gouverneur, NY	7 GWh	Nov 2023	Dec 2025	Solar
Saratoga Solar III, LLC	Green Street Power Partners	Middle Grove, NY	5 GWh	Nov 2023	Dec 2025	Solar
Saratoga Solar IV, LLC	Green Street Power Partners	Rock City Falls, NY	5 GWh	Sep 2023	Dec 2025	Solar
Pulpit Hill	LSE Fornax LLC	Amherst, MA	7 GWh	Jun 2019	Dec 2025	Solar
Sand Road	LSE Phoenix LLC	North Canaan, CT	3 GWh	Oct 2021	Dec 2025	Solar
Norfolk Landfill Solar Project	NJR Clean Energy Ventures Corporation	Norfolk, CT	6 GWh	Nov 2024	Dec 2025	Solar
Raffia Road Solar Project	NJR Clean Energy Ventures Corporation	Enfield, CT	7 GWh	Nov 2024	Dec 2025	Solar
Brewer (CSG)	Nautilus Solar Solutions	Brewer, ME	7 GWh	Jul 2024	Dec 2025	Solar
Sturbridge Barn	LSE Ara LLC	Charlton, MA	2 GWh	May 2018	Dec 2025	Solar
Bunce	LSE Indus LLC	North Canaan, CT	3 GWh	Mar 2022	Dec 2025	Solar
Valley Sun Solar	Valley Sun Solar LLC	Grand Isle, ME	3 GWh	Nov 2024	Dec 2025	Solar
French Road Solar	SoCore Energy LLC	Ashland, ME	3 GWh	Nov 2024	Dec 2025	Solar
Madawaska Solar	SoCore Energy LLC	Saint David, ME	4 GWh	Nov 2024	Dec 2025	Solar
Caribou Solar	SoCore Energy LLC	Caribou, ME	6 GWh	Nov 2024	Dec 2025	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
ME Fort Fairfield Solar Plant	ME Fort Fairfield LLC	Presque Isle, ME	4 GWh	Nov 2024	Dec 2025	Solar
Ellington - 277 Sadds Mill	Onyx Asset Services Group	Ellington, CT	4 GWh	Feb 2024	Dec 2025	Solar
Oak Leaf Solar XVII Community Solar	Navisun LLC	Pittsfield, MA	47 MWh	Nov 2025	Dec 2025	Solar
Oak Leaf Solar XVI Community Solar	Navisun LLC	Pittsfield, MA	10 MWh	Nov 2025	Dec 2025	Solar
BWC Jimmie Pond	Navisun LLC	Hampden, ME	3 GWh	Nov 2024	Dec 2025	Solar
ISM Solar Shepherd Acres	Navisun LLC	South Paris, ME	4 GWh	Nov 2024	Dec 2025	Solar
Southwick Solar, LLC Community Solar	Navisun LLC	Southwick, MA	4 GWh	Apr 2025	Dec 2025	Solar
Augusta Road Bowdoin Solar, LLC	REA Investments, LLC	Bowdoin, ME	5 GWh	Jan 2022	Dec 2025	Solar
Canton GLC Solar, LLC	REA Investments, LLC	Canton, ME	5 GWh	Mar 2024	Dec 2025	Solar
Church Hill Road Augusta Solar, LLC	REA Investments, LLC	Augusta, ME	7 GWh	Jan 2022	Dec 2025	Solar
Houlton Road Solar Farm (CSG)	REA Investments, LLC	Fort Fairfield, ME	2 GWh	Nov 2024	Dec 2025	Solar
Plympton Lake Street Solar	REA Investments, LLC	Plympton, MA	2 GWh	Nov 2022	Dec 2025	Solar
Mariaville Road Elsworth Solar, LLC	REA Investments, LLC	Ellsworth, ME	1 GWh	Apr 2022	Dec 2025	Solar
Plympton Main Street Solar, LLC	REA Investments, LLC	Plympton, MA	7 GWh	Nov 2023	Dec 2025	Solar
Market Street Gardiner Solar, LLC	REA Investments, LLC	Gardiner, ME	6 GWh	Jun 2022	Dec 2025	Solar
North Nobleboro Road, LLC	REA Investments, LLC	Waldoboro, ME	4 GWh	May 2021	Dec 2025	Solar
Nutting Ridge Solar, LLC	REA Investments, LLC	Otisfield, ME	7 GWh	May 2023	Dec 2025	Solar
Perkins Road Belfast Solar, LLC	REA Investments, LLC	Belfast, ME	9 GWh	May 2021	Dec 2025	Solar
Route 3 China Solar, LLC	REA Investments, LLC	China, ME	8 GWh	Nov 2022	Dec 2025	Solar
Sheridan Road Solar Farm	REA Investments, LLC	Ashland, ME	4 GWh	Jul 2024	Dec 2025	Solar
Skyway Avenue Solar Farm	REA Investments, LLC	Frenchville, ME	3 GWh	Feb 2024	Dec 2025	Solar
Ward Solar 1, LLC	REA Investments, LLC	Carver, MA	3 GWh	Jan 2019	Dec 2025	Solar
Amazon BDL4	Telyon AMZ Windsor LLC	Windsor, CT	4 GWh	Dec 2024	Dec 2025	Solar
Dairy Farm	Greenbacker Renewable Energy Corporation	Anson, ME	6 GWh	Sep 2024	Dec 2025	Solar
Old Frontier Solar III	Old Frontier Solar III PV, LLC	South Deerfield, MA	4 GWh	Aug 2022	Dec 2025	Solar
Benz Solar 1	Ecos Energy LLC	Ansonia, CT	1 GWh	Feb 2025	Dec 2025	Solar
Benz Solar 2	Ecos Energy LLC	Ansonia, CT	1 GWh	Feb 2025	Dec 2025	Solar
118 Echo	Madison Energy Investments LLC	Mashpee, MA	814 MWh	Jun 2023	Dec 2025	Solar
Lebanon CSG LLC	Dimension Energy LLC	Lebanon, ME	6 GWh	Nov 2024	Dec 2025	Solar
515 Main Saugus	515 Main Saugus LLC	Saugus, MA	2 GWh	Aug 2017	Dec 2025	Solar
Aegean Drive Solar	Aegean Drive Solar LLC	Methuen, MA	2 GWh	Aug 2021	Dec 2025	Solar
Downing Parkway Solar	Downing Parkway Solar LLC	Pittsfield, MA	3 GWh	Jun 2015	Dec 2025	Solar
Millbury MA #1092	Millbury MA #1092 LLC	Millbury, MA	2 GWh	May 2019	Dec 2025	Solar
Millis MA 1	Millis MA 1 LLC	Millis, MA	2 GWh	Oct 2018	Dec 2025	Solar
Rochester MA 2	Rochester MA 2 LLC	Rochester, MA	1 GWh	Nov 2018	Dec 2025	Solar
Wendell MA 1	Wendell MA 1 LLC	Wendell, MA	1 GWh	Nov 2018	Dec 2025	Solar
Walden Solar Maine V	Walden Solar Maine V LLC	Leeds, ME	36 GWh	Nov 2024	Dec 2025	Solar
ME - Novel (Lighthouse Ph I) Mars Hill	Mars Hill Road Solar Farm, LLC	Westfield, ME	4 GWh	Jul 2024	Dec 2025	Solar
Central Heating Plant	University of Massachusetts Amherst	Amherst, MA	80 GWh	Sep 2007	Dec 2025	Natural Gas : 96.3% Distillate Fuel Oil : 3.7%
Stamford Health Tully Health Center	Stamford Health Tully Health Center	Stamford, CT	5 GWh	Apr 2002	Dec 2025	Natural Gas
Overlook	Westbound Solar 3, LLC	Westminster, MA	7 GWh	Feb 2023	Dec 2025	Solar
Bates College Skowhegan	Westbound Solar 3, LLC	Skowhegan, ME	8 GWh	Aug 2023	Dec 2025	Solar
GSPP 409 Ferris Road	Green Street Power Partners	Lawrence, NY	8 GWh	Nov 2024	Dec 2025	Solar
GSPP 641 Ferris Road West	Green Street Power Partners	Lawrence, NY	4 GWh	Nov 2024	Dec 2025	Solar
Randall Road Solar I	Green Street Power Partners	Ballston Spa, NY	5 GWh	Jun 2024	Dec 2025	Solar
Randall Road Solar II	Green Street Power Partners	Ballston Spa, NY	3 GWh	Jun 2024	Dec 2025	Solar
Swaggertown Solar I	Green Street Power Partners	Glenville, NY	4 GWh	Oct 2024	Dec 2025	Solar
Swaggertown Solar II	Green Street Power Partners	Glenville, NY	7 GWh	Aug 2024	Dec 2025	Solar
East Windsor	NJR Clean Energy Ventures Corporation	East Windsor, CT	869 MWh	Aug 2025	Dec 2025	Solar
Partridge Solar	SoCore Energy LLC	Lanesborough, MA	8 GWh	Aug 2022	Dec 2025	Solar
Glastonbury Solar One	NJR Clean Energy Ventures Corporation	Glastonbury, CT	821 MWh	Aug 2025	Dec 2025	Solar
Skyline Solar	SoCore Energy LLC	Lanesborough, MA	8 GWh	Aug 2022	Dec 2025	Solar
ME CDG 004	ME CDG 004 LLC	Bangor, ME	3 GWh	Nov 2024	Dec 2025	Solar
ME CDG 005	ME CDG 005 LLC	Veazie, ME	3 GWh	Nov 2024	Dec 2025	Solar
ME - EDF - Phase II - Belfast	Shining Solar Partners, LLC	Belfast, ME	8 GWh	Aug 2024	Dec 2025	Solar
Marston Mills Solar	SoCore Energy LLC	Marstons Mills, MA	6 GWh	Nov 2021	Dec 2025	Solar
GD Richmond Beaver River I LLC	GD Richmond Beaver River I LLC	Richmond, RI	6 GWh	Mar 2025	Dec 2025	Solar
White Brook Renewables PV	White Brook Renewables LLC	West Greenwich, RI	7 GWh	Nov 2024	Dec 2025	Solar
Brattleboro (Windham Landfill)	Altus Power America Management, LLC	Brattleboro, VT	6 GWh	Jul 2018	Dec 2025	Solar
CTGB Osborn	TotalEnergies Renewables USA LLC	Somers, CT	3 GWh	Nov 2024	Dec 2025	Solar
CTGB Maloney and Webster	TotalEnergies Renewables USA LLC	Cheshire, CT	3 GWh	Jun 2025	Dec 2025	Solar

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