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	103.1 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 \| 57.5% Nuclear \| 25.1% Water \| 7.5% Other Fuel \| 4.5% 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
Ashby Solar, LLC CSG	Ashby Solar, LLC	Fitchburg, MA	3 GWh	Jun 2018	Dec 2023	Solar
Dudley	AMP MA Dudley	Dudley, MA	5 GWh	Jun 2018	Dec 2023	Solar
Antanavica Solar	Cypress Creek Renewables	Leicester, MA	1 GWh	Jul 2018	Dec 2023	Solar
Trinity College Fuel Cell	AEP Onsite Partners, LLC	Hartford, CT	9 GWh	Jul 2018	Dec 2023	Natural Gas
Ludlow Site 72 - Conti	NSTAR Electric Company	Ludlow, MA	2 GWh	Jul 2018	Dec 2023	Solar
Pittsfield 44 - M&W PV	NSTAR Electric Company	Pittsfield, MA	2 GWh	Jul 2018	Dec 2023	Solar
Lee Site 31 Solar	NSTAR Electric Company	Lee, MA	2 GWh	Jul 2018	Dec 2023	Solar
Kearsarge GB	Kearsarge GB LLC	Great Barrington, MA	3 GWh	Jul 2018	Dec 2023	Solar
Big George PV CSG	Altus Power America Management, LLC	Plymouth, MA	1 GWh	Aug 2018	Dec 2023	Solar
Sunderland Solar PV	NSTAR Electric Company	Sunderland, MA	2 GWh	Aug 2018	Dec 2023	Solar
Kearsarge Uxbridge	Kearsarge Uxbridge LLC	Uxbridge, MA	3 GWh	Aug 2018	Dec 2023	Solar
GSPP Gilman, LLC	Green Street Power Partners	Lunenburg, VT	3 GWh	Aug 2018	Dec 2023	Solar
FDX010.0 FedEx Fuel Cell	2016 ESA Project Company, LLC	Middletown, CT	7 GWh	Aug 2018	Dec 2023	Natural Gas
580 River Solar	NuGen Capital Management	Winchendon, MA	4 GWh	Aug 2018	Dec 2023	Solar
Saint Albans Solar	Cypress Creek Renewables	Georgia, VT	7 GWh	Sep 2018	Dec 2023	Solar
Montague Site 36-Grosolar	NSTAR Electric Company	Millers Falls, MA	6 GWh	Sep 2018	Sep 2024	Solar
East Springfield Solar PV	NSTAR Electric Company	Springfield, MA	2 GWh	Sep 2018	Dec 2023	Solar
Westminster Renewables, LLC CSG	Westminster Renewables, LLC	Westminster, MA	2 GWh	Sep 2018	Dec 2023	Solar
Winchendon Landfill Solar	Onyx Asset Services Group	Winchendon, MA	3 GWh	Sep 2018	Dec 2023	Solar
Kearsarge SKSC1 LLC	Kearsarge SKSC1 LLC	South Kingstown, RI	6 GWh	Sep 2018	Dec 2023	Solar
Kearsarge SKSC2 LLC	Kearsarge SKSC2 LLC	South Kingstown, RI	6 GWh	Sep 2018	Dec 2023	Solar
Manchester Community College East	Onyx Asset Services Group	Manchester, CT	1 GWh	Sep 2018	Dec 2023	Solar
Manchester Community College North	Onyx Asset Services Group	Great Path, CT	2 GWh	Sep 2018	Dec 2023	Solar
Battle Creek Solar	Ecos Energy LLC	Bennington, VT	4 GWh	Sep 2018	Dec 2023	Solar
Natick Mall	Natick Mall	Natick, MA	3 GWh	Sep 2018	Dec 2023	Solar
North Providence	Captona N.P. LLC	North Providence, RI	3 GWh	Sep 2018	Dec 2023	Solar
Tanglewood Circle Solar 1 LLC	Tanglewood Circle Solar 1 LLC	Becket, MA	7 GWh	Oct 2018	Dec 2023	Solar
Westport B Community Solar Garden	BWC Hamilton Brook LLC	Westport, MA	7 GWh	Oct 2018	Dec 2023	Solar
North Smithfield Solar Power 1	AEP Onsite Partners, LLC	North Smithfield, RI	919 MWh	Nov 2018	Dec 2023	Solar
Woods Hill Solar	Woods Hill Solar, LLC	Pomfret, CT	23 GWh	Nov 2018	Sep 2024	Solar
Coolidge Solar 1, LLC	Coolidge Solar I, LLC	Ludlow, VT	27 GWh	Nov 2018	Sep 2024	Solar
Wareham Solar PV	NSTAR Electric Company	Wareham, MA	1 GWh	Nov 2018	Dec 2023	Solar
Hatfield Solar PV	NSTAR Electric Company	Hatfield, MA	6 GWh	Nov 2018	Dec 2023	Solar
Richmond NMCA	AES Distributed Energy	Wood River Junction, RI	6 GWh	Nov 2018	Sep 2024	Solar
BWC Origination 18	BWC Origination 18, LLC	Mattapoisett, MA	7 GWh	Nov 2018	Dec 2023	Solar
BWC Gibbs Brook	BWC Gibbs Brook, LLC	Wareham, MA	7 GWh	Nov 2018	Dec 2023	Solar
BWC Wareham River	BWC Wareham River, LLC	Wareham, MA	2 GWh	Nov 2018	Dec 2023	Solar
BWC Harlow Brook	BWC Harlow Brook, LLC	Wareham, MA	2 GWh	Nov 2018	Dec 2023	Solar
BWC Pocasset River	BWC Pocasset River, LLC	Wareham, MA	2 GWh	Nov 2018	Dec 2023	Solar
Washburn Road Solar	REA Investments, LLC	Freetown, MA	3 GWh	Nov 2018	Dec 2023	Solar
Lakeville Solar	C2 MA Lakeville, LLC	Lakeville, MA	3 GWh	Nov 2018	Dec 2023	Solar
A Street 2	Captona A Street 2 Johnston LLC	Johnston, RI	3 GWh	Nov 2018	Dec 2023	Solar
Kilvert	Captona Kilvert Street Warwick LLC	Warwick, RI	8 GWh	Nov 2018	Dec 2023	Solar
A Street 1	Captona A Street 1 Johnston LLC	Johnston, RI	2 GWh	Nov 2018	Dec 2023	Solar
Georges River Energy	Robbins Lumber Inc	Searsmont, ME	40 GWh	Nov 2018	Dec 2023	Wood/Wood Waste Solids
Adirondack A+B Community Solar Garden	BWC Connecticut River LLC	Westport, MA	8 GWh	Nov 2018	Dec 2023	Solar
Greenfield Solar PV	NSTAR Electric Company	Greenfield, MA	3 GWh	Dec 2018	Dec 2023	Solar
Hinsdale Solar PV	NSTAR Electric Company	Hinsdale, MA	3 GWh	Dec 2018	Dec 2023	Solar
Springfield Solar PV	NSTAR Electric Company	Springfield, MA	6 GWh	Dec 2018	Dec 2023	Solar
Southwick Solar PV	NSTAR Electric Company	Southwick, MA	8 GWh	Dec 2018	Sep 2024	Solar
WED Green Hill, LLC	WED Green Hill, LLC	Johnston, RI	6 GWh	Dec 2018	Sep 2024	Wind
WED Plainfield II, LLC	WED Plainfield II, LLC	Johnston, RI	6 GWh	Dec 2018	Dec 2023	Wind
WED Plainfield III, LLC	WED Plainfield III, LLC	Johnston, RI	6 GWh	Dec 2018	Dec 2023	Wind
WED Plainfield, LLC	WED Plainfield, LLC	Johnston, RI	5 GWh	Dec 2018	Dec 2023	Wind
WED Shun I, LLC	WED Shun I, LLC	Johnston, RI	6 GWh	Dec 2018	Aug 2024	Wind
WED Shun II, LLC	WED Shun II, LLC	Johnston, RI	6 GWh	Dec 2018	Dec 2023	Wind
WED Shun III, LLC	WED Shun III, LLC	Johnston, RI	6 GWh	Dec 2018	Dec 2023	Wind
WED GW Solar, LLC	WED GW Solar, LLC CSG	Lincoln, RI	4 GWh	Dec 2018	Dec 2023	Solar
GSPP Devens, LLC	Green Street Power Partners	Ayer, MA	3 GWh	Dec 2018	Dec 2023	Solar
GSPP Boxborough Littleton (MA)	GSPP Boxborough Littleton, LLC	Boxborough, MA	5 GWh	Dec 2018	Dec 2023	Solar
Merrimack Solar Farm, LLC	Merrimack Solar Farm	Merrimack, NH	3 GWh	Dec 2018	Dec 2023	Solar
Savoy Solar PV	NSTAR Electric Company	Savoy, MA	3 GWh	Jan 2019	Dec 2023	Solar
Southampton Solar PV	NSTAR Electric Company	Southampton, MA	3 GWh	Jan 2019	Dec 2023	Solar
Plainfield Community Solar LLC	Plainfield Solar LLC	Plainfield, MA	3 GWh	Jan 2019	Dec 2023	Solar
GSPP Terrawatt Westfield LLC CSG	Green Street Power Partners	Westfield, MA	6 GWh	Jan 2019	Dec 2023	Solar
GSPP Raynham TMLP, LLC CSG	Green Street Power Partners	Raynham, MA	4 GWh	Jan 2019	Dec 2023	Solar
Exelon West Medway II LLC	Constellation Power, Inc	Medway, MA	197 GWh	Feb 2019	Sep 2024	Natural Gas : 99.6%
Bowden Solar LLC	38DN Power Fund 1 LLC	Monson, MA	3 GWh	Feb 2019	Dec 2023	Solar
Hopkinton CSG	Altus Power America Management, LLC	Hopkinton, MA	3 GWh	Mar 2019	Dec 2023	Solar
Centech Gas Generator	Town of Shrewsbury - (MA)	Shrewsbury, MA	340 MWh	Mar 2019	Dec 2023	Natural Gas
Carver CSG	Altus Power America Management, LLC	Carver, MA	2 GWh	Apr 2019	Dec 2023	Solar
Westtown CSG	Altus Power America Management, LLC	Westtown, NY	3 GWh	Apr 2019	Dec 2023	Solar
Gold Meadow Farms	Captona Lippitt Ave Cranston LLC	Cranston, RI	27 GWh	Apr 2019	Dec 2023	Solar
Signature Breads Chelsea	JDC 65R Owner, LLC	Chelsea, MA	2 MWh	Apr 2019	Dec 2023	Distillate Fuel Oil
Plainfield Pike	Captona Plainfield Pike Johnston LLC	Johnston, RI	4 GWh	May 2019	Dec 2023	Solar
Williamsburg	AES Distributed Energy	Goshen, MA	6 GWh	Jun 2019	Dec 2023	Solar
Nautilus Goat Island Solar LLC (CSG)	Nautilus Solar Solutions	Burrillville, RI	4 GWh	Jul 2019	Dec 2023	Solar
Wachusett Solar	Wachusett Solar, LLC	Rutland, MA	3 GWh	Jul 2019	Dec 2023	Solar
Hope Farm Solar, LLC	Adapture Renewables, Inc.	Cranston, RI	16 GWh	Aug 2019	Dec 2023	Solar
GMP Solar/Storage-Milton Hybrid	Green Mountain Power Corp	Milton, VT	8 GWh	Aug 2019	Sep 2024	Solar : 91.2% Electricity used for energy storage : 8.8%
GMP Solar/Storage-Ferrisburgh Hybrid	Green Mountain Power Corp	Ferrisburgh, VT	9 GWh	Aug 2019	Sep 2024	Solar : 90.7% Electricity used for energy storage : 9.3%
GMP Solar/Storage-Essex Hybrid	Green Mountain Power Corp	Essex, VT	7 GWh	Aug 2019	Sep 2024	Solar : 91.0% Electricity used for energy storage : 9.0%
Connecticut College	Bloom Energy	New London, CT	8 GWh	Aug 2019	Dec 2023	Natural Gas
East Longmeadow Solar PV	NSTAR Electric Company	East Longmeadow, MA	6 GWh	Sep 2019	Dec 2023	Solar
Palmer	AES Distributed Energy	Palmer, MA	6 GWh	Sep 2019	Dec 2023	Solar
Happy Hollow CSG Hybrid	REA Investments, LLC	Winchendon, MA	8 GWh	Sep 2019	Dec 2023	Solar
Gardner - Otter River Road	Otter River Road Solar LLC	Gardner, MA	4 GWh	Sep 2019	Dec 2023	Solar
Amazon BDL3 Solar Project	Solar Star Prime 1 LLC	New Haven, CT	1 GWh	Sep 2019	Dec 2023	Solar
Hampden Solar PV	NSTAR Electric Company	Hampden, MA	5 GWh	Oct 2019	Dec 2023	Solar
Antrim Wind	Antrim Wind Energy LLC	Antrim, NH	66 GWh	Nov 2019	Sep 2024	Wind
Founders Homestead Farms Solar	AES Distributed Energy	Portsmouth, RI	7 GWh	Nov 2019	Sep 2024	Solar
GD Richmond Buttonwoods I, LLC	GD Richmond Buttonwoods I, LLC	Richmond, RI	2 GWh	Nov 2019	Dec 2023	Solar
GD West Greenwich Victory I, LLC	GD West Greenwich Victory I, LLC	West Greenwich, RI	3 GWh	Nov 2019	Dec 2023	Solar
DWW Solar ll	DWW Solar ll LLC	Simsbury, CT	50 GWh	Nov 2019	Sep 2024	Solar
CED Northampton Solar LLC Hybrid	Consolidated Edison Development Inc.	Northampton, MA	6 GWh	Nov 2019	Dec 2023	Solar
MHG Wallingford	Standard Solar	Wallingford, VT	4 GWh	Nov 2019	Dec 2023	Solar
Holiday Hill Community Wind	Greenbacker Renewable Energy Corporation	Russell, MA	10 GWh	Nov 2019	Dec 2023	Wind
Syncarpha Blandford Hybrid CSG	Syncarpha Blandford, LLC	Blandford, MA	8 GWh	Nov 2019	Dec 2023	Solar
West Street Solar 1 LLC	AES Distributed Energy	Gardner, MA	8 GWh	Nov 2019	Dec 2023	Solar
Sherman Solar	Ecos Energy LLC	Griswold, CT	2 GWh	Nov 2019	Dec 2023	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	903.4 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	63.2 TWh	554
#51	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.1 TWh	20
#12	New York Independent System Operator	129.8 TWh	1,100
#1	PJM Interconnection, LLC	843.4 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	192.0 TWh	1,943
#9	Tennessee Valley Authority	157.6 TWh	170
#10	Florida Power & Light Co.	147.6 TWh	159
#12	New York Independent System Operator	129.8 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556
#15	ISO New England	103.1 TWh	1,487
#16	Bonneville Power Administration	80.0 TWh	158
#17	Duke Energy Progress East	63.2 TWh	554
#18	Salt River Project Agricultural Improvement and Power District	58.9 TWh	45
#19	PacifiCorp East	52.7 TWh	204