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
HSCo CHP	Cartier Energy, LLC	Hartford, CT	27 GWh	Sep 2009	Dec 2023	Natural Gas
Hudson	Captona Hudson LLC	Hudson, MA	6 GWh	Apr 2017	Dec 2023	Solar
Hull Wind II	Hull Municipal Light Plant	Hull, MA	3 GWh	Apr 2006	Apr 2023	Wind
Hunt Farm Solar	Altus Power America Management, LLC	Orange, MA	4 GWh	Aug 2013	Dec 2023	Solar
Hunt Road Solar	Citizens Enterprises Corporation	Amesbury, MA	7 GWh	Nov 2016	Dec 2023	Solar
Huntington Falls	Green Mountain Power Corp	Weybridge, VT	33 GWh	Sep 1988	Dec 2023	Water
Hurteau Solar Project Hybrid	AES Distributed Energy	Uxbridge, MA	3 GWh	Feb 2020	Dec 2023	Solar : 98.8%
Huxley Solar	Huxley Solar, LLC	Ludlow, MA	4 GWh	Nov 2022	Dec 2023	Solar
Hydro Kennebec Project	Hydro Kennebec LLC	Winslow, ME	70 GWh	Dec 1988	Dec 2023	Water
IBM Southbury	Bloom Energy	Southbury, CT	5 GWh	Oct 2014	Dec 2022	Natural Gas
IKEA New Haven Rooftop PV & Fuel Cell	IKEA Property Inc	New Haven, CT	2 GWh	Jun 2012	Dec 2023	Natural Gas : 67.0% Solar : 33.0%
Incom Solar, LLC CSG	38 Degrees North, LLC	Charlton, MA	4 GWh	Oct 2017	Dec 2023	Solar
Indeck West Enfield Energy Center	Stored Solar J&WE	West Enfield, ME	13 GWh	Nov 1987	Dec 2023	Wood/Wood Waste Solids : 99.7%
Indian Hill Solar LLC	CVI CleanCapital Solar 1 LLC	Palmer, MA	1 GWh	Mar 2014	Dec 2023	Solar
Indian Orchard	Central Rivers Power MA, LLC	Indian Orchard, MA	11 GWh	Dec 1927	Dec 2023	Water
Indian Orchard PV Facility	Western Massachusetts Electric Company	Springfield, MA	3 GWh	Nov 2011	Dec 2023	Solar
Indian River Hydro	Eagle Creek Renewable Energy, LLC	Russell, MA	2 GWh	Nov 1909	Dec 2023	Water
Integrys MA Solar, LLC - Ashburnham Site	Integrys MA Solar, LLC	Ashburnham, MA	3 GWh	Nov 2013	Dec 2023	Solar
International Paper Jay Hydro	Eagle Creek Renewable Energy, LLC	Jay, ME	7 GWh	Dec 1911	Sep 2023	Water
International Paper Livermore Hydro	Eagle Creek Renewable Energy, LLC	Livermore Falls, ME	10 GWh	Dec 1909	Dec 2023	Water
International Paper Riley Hydro	Eagle Creek Renewable Energy, LLC	Jay, ME	6 GWh	Nov 1981	Dec 2023	Water
International Paper Woronoco Mill	Eagle Creek Renewable Energy, LLC	Woronoco, MA	6 GWh	Dec 1912	Dec 2023	Water
IOS - MEW Phase 1	IGS ORIX Solar I, LLC	Madison, ME	5 GWh	Dec 2016	Dec 2023	Solar
Ipswich Wind Turbine	Town of Ipswich - (MA)	Ipswich, MA	3 GWh	Apr 2011	Dec 2023	Wind
Iron Horse Solar 4, LLC	Iron Horse Solar 4, LLC	North Billerica, MA	7 GWh	May 2017	Dec 2023	Solar
Iron Horse Solar I CSG	Iron Horse Solar 1, LLC	North Billerica, MA	4 GWh	Nov 2016	Dec 2023	Solar
ISM Solar Cranston CSG	Nautilus Solar Solutions	Cranston, RI	4 GWh	Nov 2020	Dec 2023	Solar
ISM Solar Dighton 2, LLC CSG	38 Degrees North, LLC	Dighton, MA	4 GWh	Nov 2017	Dec 2023	Solar
IXYS - Beverly	IXYS Integrated Circuits Division, LLC	Beverly, MA	23 MWh	Dec 1996	Dec 2023	Distillate Fuel Oil : 58.5% Natural Gas : 41.5%
J C McNeil	City of Burlington Electric - (VT)	Burlington, VT	180 GWh	May 1984	Sep 2024	Wood/Wood Waste Solids : 99.7%
Jackman	Central Rivers Power NH, LLC	Hillsborough, NH	13 GWh	Jan 1926	Dec 2023	Water
Jackson Solar (CT)	Ecos Energy LLC	Griswold, CT	2 GWh	Nov 2019	Dec 2023	Solar
Jefferson Solar	Ecos Energy LLC	Lebanon, CT	2 GWh	Dec 2017	Dec 2023	Solar
Jericho Power	Jericho Power LLC	Berlin, NH	19 GWh	Dec 2015	Sep 2024	Wind
Jewett City 1	Connecticut Mun Elec Engy Coop	Jewett City, CT	198 MWh	Jan 2010	Dec 2023	Distillate Fuel Oil
JH Solar, LLC CSG	38 Degrees North, LLC	North Brookfield, MA	2 GWh	Oct 2017	Dec 2023	Solar
Jiminy Peak Wind QF	Jiminy Peak Mountain Resort, LLC	Hancock, MA	1 MWh	Jul 2007	Dec 2022	Wind
Joe Jenny	AMP MA Joe Jenny	Oxford, MA	2 GWh	Apr 2018	Dec 2023	Solar
Johnston LFG Turbine Plant	Rhode Island LFG Genco	Johnston, RI	231 GWh	Apr 2013	Sep 2024	Landfill Gas
Johnston Solar	Concord New Energy	Town of Johnston, RI	2 GWh	Jun 2015	Dec 2023	Solar
Katama Farm	Clean Focus Yield, LLC	Edgartown, MA	2 GWh	May 2014	Dec 2023	Solar
Kearsarge 100 Sohier Rd	Kearsarge Beverly LLC	Beverly, MA	3 GWh	Apr 2023	Dec 2023	Solar
Kearsarge Acushnet	Kearsarge Acushnet LLC	Acushnet, MA	3 GWh	Jan 2020	Dec 2023	Solar
Kearsarge Amesbury Hybrid	Kearsarge Amesbury LLC	Amesbury, MA	5 GWh	Nov 2019	Dec 2023	Solar
Kearsarge Bellingham PV	Kearsarge Bellingham LLC	Bellingham, MA	5 GWh	Nov 2016	Dec 2023	Solar
Kearsarge Concord II	Kearsarge Concord II LLC	Concord, MA	7 GWh	Dec 2016	Dec 2023	Solar
Kearsarge East Providence	Kearsarge East Providence LLC	East Providence, RI	3 GWh	Nov 2020	Dec 2023	Solar
Kearsarge Fogland	Kearsarge Fogland LLC	Tiverton, RI	2 GWh	Oct 2020	Dec 2023	Solar
Kearsarge GB	Kearsarge GB LLC	Great Barrington, MA	3 GWh	Jul 2018	Dec 2023	Solar
Kearsarge Gill	Kearsarge Gill LLC	Gill, MA	3 GWh	Dec 2017	Dec 2023	Solar
Kearsarge Granby	Kearsarge Granby LLC	Granby, MA	4 GWh	Feb 2017	Dec 2023	Solar
Kearsarge Haverhill	Kearsarge Haverhill LLC	Haverhill, MA	4 GWh	Feb 2021	Dec 2023	Solar
Kearsarge Ludlow LLC	Kearsarge Ludlow LLC	Ludlow, MA	6 GWh	Nov 2020	Dec 2023	Solar
Kearsarge Montague	Kearsarge Montague LLC	Montague, MA	7 GWh	May 2018	Dec 2023	Solar
Kearsarge Montague BD(CSG)	Kearsarge Montague BD LLC	Montague, MA	3 GWh	Oct 2021	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
Kearsarge Smithfield LLC	Kearsarge Smithfield LLC	Burrillville, RI	11 GWh	Mar 2023	Dec 2023	Solar
Kearsarge Southwick LLC	Kearsarge Solar LLC	Southwick, MA	6 GWh	Feb 2015	Dec 2023	Solar
Kearsarge Upper Union	Kearsarge Upper Union LLC	Franklin, MA	1 GWh	Feb 2023	Dec 2023	Solar
Kearsarge Uxbridge	Kearsarge Uxbridge LLC	Uxbridge, MA	3 GWh	Aug 2018	Dec 2023	Solar
Kearsarge West Shore Solar LLC	Kearsarge West Shore Solar LLC	Portsmouth, RI	7 GWh	Nov 2022	Dec 2023	Solar
Kearsarge Westerly	Kearsarge Westerly LLC	Westerly, RI	6 GWh	Nov 2020	Dec 2023	Solar
Kearsarge William Way	Kearsarge William Way LLC	Bellingham, MA	7 GWh	Nov 2021	Dec 2023	Solar
Kearsarge Wilmington	Kearsarge Wilmington LLC	Wilmington, MA	2 GWh	Nov 2017	Dec 2023	Solar
Kendall Square Station	Kendall Green Energy, LLC	Cambridge, MA	2 TWh	May 1949	Sep 2024	Natural Gas : 99.7%
Kenmare - Mansfield Branch Street	MN8 Energy LLC	Mansfield, MA	2 GWh	May 2017	Dec 2023	Solar
Kibby Wind Facility	Helix Maine Wind Development, LLC	Chain of Ponds, ME	248 GWh	Sep 2009	Sep 2024	Wind
Kilvert	Captona Kilvert Street Warwick LLC	Warwick, RI	8 GWh	Nov 2018	Dec 2023	Solar
Kimberly Clark-Unit 1,2,3	Kimberly-Clark Corporation	New Milford, CT	217 GWh	Mar 2008	Dec 2023	Natural Gas
Kingdom Community Wind	Green Mountain Power Corp	Lowell, VT	156 GWh	Oct 2012	Sep 2024	Wind
Kleen Energy Systems Project	Kleen Energy Systems, LLC	Middletown, CT	3 TWh	Jun 2011	Sep 2024	Natural Gas : 99.4% Distillate Fuel Oil : 0.6%
Knapp East (CSG)	AES Distributed Energy	Akron, NY	7 GWh	Nov 2021	Dec 2023	Solar
Knapp West(CSG)	AES Distributed Energy	Akron, NY	6 GWh	Nov 2021	Dec 2023	Solar
KS Solar Six LLC	Kearsarge Solar LLC	Hubbardston, MA	3 GWh	Nov 2013	Dec 2023	Solar
Lake Road Generating Plant	Lake Road Generating Co LP	Dayville, CT	6 TWh	Feb 2002	Sep 2024	Natural Gas
Lakeville Solar	C2 MA Lakeville, LLC	Lakeville, MA	3 GWh	Nov 2018	Dec 2023	Solar
Lane Ave Solar LLC	AES Distributed Energy	North Brookfield, MA	2 GWh	Aug 2021	Dec 2023	Solar
Lawrence Brook	Greenbacker Renewable Energy Corporation	Morristown, VT	3 GWh	Nov 2020	Dec 2023	Solar
Lawrence Hydroelectric Associates	Central Rivers Power US, LLC	Lawrence, MA	94 GWh	Jun 1981	Dec 2023	Water
Lebanon Pines 1 & 2	Connecticut Mun Elec Engy Coop	Lebanon, CT	577 MWh	Mar 2010	Dec 2023	Distillate Fuel Oil
Ledeaux Solar, LLC CSG	38 Degrees North, LLC	North Brookfield, MA	1 GWh	Oct 2017	Dec 2023	Solar
Lee Site 31 Solar	NSTAR Electric Company	Lee, MA	2 GWh	Jul 2018	Dec 2023	Solar
Leicester One MA Solar LLC	CVI CleanCapital Solar 1 LLC	Leicester, MA	5 GWh	Dec 2014	Dec 2023	Solar
Lempster Wind LLC	Avangrid Renewables LLC	Lempster, NH	60 GWh	Nov 2008	Sep 2024	Wind
Lenox Renewables	Lenox Renewables, LLC	Canastota, NY	5 GWh	Aug 2021	Dec 2023	Solar
Leominster	Syncarpha Massachusetts, LLC	Leominster, MA	3 GWh	Apr 2015	Dec 2023	Solar
Leominster (MA)-South Street-R&D	South Street Solar, LLC	Tewksbury, MA	3 GWh	Nov 2013	Dec 2023	Solar
Lepomis PV Energy LLC	CleanCapital Holdings	Plymouth, MA	8 GWh	May 2014	Dec 2023	Solar
Lewiston Junction Road Solar	NextGrid Peppertree, LLC	Poland, ME	6 GWh	Dec 2021	Dec 2023	Solar
Lilly Lane	LSE Chamaeleon LLC	Charlton, MA	2 GWh	May 2018	Dec 2023	Solar
Limerick Road Solar Farm	Limerick Road Solar, LLC	Shelburne, VT	3 GWh	Nov 2013	Dec 2023	Solar
Lisbon Street Solar	NextGrid Cliffrose, LLC	Lewiston, ME	3 GWh	Mar 2022	Dec 2023	Solar
Little Bay	Altus Power America Management, LLC	Providence, RI	1 GWh	Feb 2014	Dec 2023	Solar
Little Falls Solar	Little Falls Solar	Little Falls, NY	4 GWh	Sep 2020	Dec 2023	Solar
Little Falls Solar 1	Little Falls Solar 1, LLC	Little Falls, NY	3 GWh	Aug 2020	Dec 2023	Solar
Livermore Falls CSG	Livermore Falls CSG, LLC	Livermore Falls, ME	5 GWh	Apr 2022	Dec 2023	Solar
LNG 1 & 2	Connecticut Mun Elec Engy Coop	Norwich, CT	573 MWh	Mar 2010	Dec 2023	Distillate Fuel Oil
Lochmere Hydroelectric Plant	Eagle Creek Renewable Energy, LLC	Tilton, NH	4 GWh	Nov 1984	Dec 2023	Water
Lockwood Hydroelectric Facility	Merimil Ltd Partnership	Waterville, ME	24 GWh	Sep 1985	Dec 2023	Water

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