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	102.8 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 \| 57.6% Nuclear \| 25% Water \| 7.7% Other Fuel \| 4.6% 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
Cranberry Solar	GWE Cranberry Solar RT, LLC	Middleborough, MA	2 GWh	Nov 2016	Dec 2023	Solar
154 D Fisher	Greenbacker Renewable Energy Corporation	Middleborough, MA	2 GWh	Nov 2015	Dec 2023	Solar
115 G Fisher	Greenbacker Renewable Energy Corporation	Middleborough, MA	2 GWh	Sep 2015	Dec 2023	Solar
Lower Middlebury	Green Mountain Power Corp	Middlebury Lower, VT	4 GWh	Jul 1917	Nov 2023	Water
Middlebury College	Middlebury College Biomass	Middlebury, VT	2 GWh	Dec 1979	Aug 2024	Wood/Wood Waste Solids : 77.1% Natural Gas : 22.9%
Middleton Solar Park	HG Solar Development, LLC	Middleton, MA	7 GWh	May 2018	Dec 2023	Solar
Wesleyan University Cogen 1	Wesleyan University	Middletown, CT	10 GWh	Jan 2009	Dec 2023	Natural Gas
GenConn Middletown LLC	GenConn Middletown LLC	Middletown, CT	4 GWh	May 2011	Dec 2023	Kerosene : 83.6% Natural Gas : 16.4%
Kleen Energy Systems Project	Kleen Energy Systems, LLC	Middletown, CT	3 TWh	Jun 2011	Aug 2024	Natural Gas : 99.4% Distillate Fuel Oil : 0.6%
Middletown	Middletown Power LLC	Middletown, CT	170 GWh	Sep 1958	Dec 2023	Natural Gas : 79.3% Residual Fuel Oil : 20.7%
CP Middletown Solar II LLC	Green Street Power Partners	Middletown, CT	2 GWh	Nov 2019	Dec 2023	Solar
CP Middletown Solar I LLC	Green Street Power Partners	Middletown, CT	2 GWh	Nov 2019	Dec 2023	Solar
FDX010.0 FedEx Fuel Cell	2016 ESA Project Company, LLC	Middletown, CT	7 GWh	Aug 2018	Dec 2023	Natural Gas
GenConn Devon LLC	GenConn Devon LLC	Milford, CT	2 GWh	May 2010	Dec 2023	Kerosene : 96.0% Natural Gas : 4.0%
Devon Station	Devon Power LLC	Milford, CT	123 MWh	Dec 1984	Dec 2023	Kerosene : 89.2% Natural Gas : 10.8%
Milford Power Project	Milford Power Co LLC	Milford, CT	4 TWh	Jan 2004	Aug 2024	Natural Gas
Milford Hydro Station	Brookfield Black Bear Hydro, LLC	Milford, ME	53 GWh	Jun 1941	Dec 2023	Water
Milford Power LP	Milford Power LLC	Milford, MA	210 GWh	Feb 1993	Dec 2023	Natural Gas
Millbury Solar	Evergreen Wind, LLC	Millbury, MA	5 GWh	Mar 2014	Dec 2023	Solar
Syncarpha Millbury Hybrid (CSG)	Syncarpha Millbury, LLC	Millbury, MA	8 GWh	Sep 2022	Dec 2023	Solar
Wheelabrator Millbury Facility	Wheelabrator Environmental Systems	Millbury, MA	320 GWh	Aug 1987	Aug 2024	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
3Colton	Madison Energy Holdings LLC	Millbury, MA	2 GWh	Jun 2023	Dec 2023	Solar
Montague Site 36-Grosolar	NSTAR Electric Company	Millers Falls, MA	6 GWh	Sep 2018	Aug 2024	Solar
Great Lakes Hydro America - ME	Great Lakes Hydro America LLC	Millinocket, ME	737 GWh	Jun 1917	Dec 2023	Water
Milo PV - BD Solar 1 LLC	BD Solar 1 LLC	Milo, ME	25 GWh	May 2021	Dec 2023	Solar
Milo CSG	Milo CSG, LLC	Milo, ME	6 GWh	Jan 2022	Dec 2023	Solar
Milton Hydro	SFR Hydro Cor	Milton, NH	8 GWh	Dec 1913	Dec 2023	Water
Marlborough Solar	Marlborough Solar, LLC	Milton, NY	3 GWh	Feb 2021	Dec 2023	Solar
Georgia Mountain Community Wind Farm	Greenbacker Renewable Energy Corporation	Milton, VT	25 GWh	Nov 2012	Aug 2024	Wind
Clark Falls	Green Mountain Power Corp	Milton, VT	20 GWh	Jan 1937	Dec 2023	Water
GMP Solar/Storage-Milton Hybrid	Green Mountain Power Corp	Milton, VT	8 GWh	Aug 2019	Aug 2024	Solar : 91.0% Electricity used for energy storage : 9.0%
Milton	Green Mountain Power Corp	Milton, VT	48 GWh	Jan 1929	Dec 2023	Water
Peterson	Green Mountain Power Corp	Milton, VT	36 GWh	Jan 1948	Dec 2023	Water
Monmouth	Maine DG Solar Monmouth, LLC	Monmouth, ME	8 GWh	Feb 2022	Dec 2023	Solar
Stevenson	FirstLight Power Resources Services LLC	Monroe, CT	111 GWh	Dec 1918	Dec 2023	Water
Comerford	Great River Hydro, LLC	Monroe, NH	405 GWh	Aug 1930	Dec 2023	Water
Monson Solar, LLC	Monson Solar, LLC	Monson, MA	3 GWh	Jul 2017	Dec 2023	Solar
Monson Solar	Altus Power America Management, LLC	Monson, MA	4 GWh	Jun 2014	Dec 2023	Solar
Bowden Solar LLC	38DN Power Fund 1 LLC	Monson, MA	3 GWh	Feb 2019	Dec 2023	Solar
Kearsarge Montague	Kearsarge Montague LLC	Montague, MA	7 GWh	May 2018	Dec 2023	Solar
Cabot	FirstLight Power Resources, Inc. - MA	Montague, MA	394 GWh	Dec 1914	Dec 2023	Water
Turners Falls	FirstLight Power Resources, Inc. - MA	Montague, MA	14 GWh	Dec 1904	Dec 2023	Water
Kearsarge Montague BD(CSG)	Kearsarge Montague BD LLC	Montague, MA	3 GWh	Oct 2021	Dec 2023	Solar
Wrightsville Hydro Plant	Washington Electric Coop - (VT)	Montpelier, VT	2 GWh	Aug 1985	Dec 2023	Water
Rand Whitney CHP Plant	Rand Whitney Containerboard L.P.	Montville, CT	134 GWh	Mar 2005	Aug 2024	Natural Gas
Moretown Generating Station	Moretown Hydroelectric LLC	Moretown, VT	3 GWh	Dec 1988	Dec 2023	Water
Middlesex 2	Green Mountain Power Corp	Moretown, VT	14 GWh	Dec 1927	Dec 2023	Water
Lawrence Brook	Greenbacker Renewable Energy Corporation	Morristown, VT	3 GWh	Nov 2020	Dec 2023	Solar
ER Salvage Yard	Greenbacker Renewable Energy Corporation	Morrisville, VT	3 GWh	Oct 2021	Dec 2023	Solar
Cadys Falls	Village of Morrisville - (VT)	Morrisville, VT	236 MWh	Jul 1914	Apr 2023	Water
Morrisville	Village of Morrisville - (VT)	Morrisville, VT	6 GWh	Jul 1924	Dec 2023	Water
Ottauquechee Hydro	Green Mountain Power Corp	N. Hartland, VT	4 GWh	Mar 1983	Dec 2023	Water
Block Island Wind Farm	Deepwater Wind Block Island LLC	NA, RI	97 GWh	Nov 2016	Aug 2024	Wind
Naples	Naples Casco Solar 1, LLC	Naples, ME	2 GWh	Nov 2021	Dec 2023	Solar
Mine Falls Generating Station	City of Nashua, NH	Nashua, NH	20 GWh	Nov 1985	Dec 2023	Water
Nashua Plant	EPP Renewable Energy	Nashua, NH	14 GWh	Mar 1996	Dec 2023	Landfill Gas
Natick Mall	Natick Mall	Natick, MA	3 GWh	Sep 2018	Dec 2023	Solar
Town of Needham VNEM CSG	Tesla Inc.	Needham, MA	4 GWh	Jan 2016	Dec 2023	Solar
Sullivan Solar	Altus Power America Management, LLC	New Bedford, MA	2 GWh	Jul 2014	Dec 2023	Solar
Greater New Bedford LFG Utiliz. Facility	CommonWealth New Bedford Energy LLC	New Bedford, MA	20 GWh	Sep 2005	Dec 2023	Landfill Gas
CCSU Co-Gen-STBY Gen	Central Connecticut State University	New Britain, CT	88 MWh	Sep 1993	Dec 2023	Natural Gas
CCSU Fuel Cell Project	New Britain Renewable Energy, LLC	New Britain, CT	10 GWh	Mar 2012	Dec 2023	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%
New Haven Harbor	Generation Bridge II Connecticut, LLC	New Haven, CT	30 GWh	Jun 1975	Aug 2024	Natural Gas : 83.2% Kerosene : 16.8%
Amazon BDL3 Solar Project	Solar Star Prime 1 LLC	New Haven, CT	1 GWh	Sep 2019	Dec 2023	Solar
UI RCP New Haven Fuel Cell	United Illuminating Co	New Haven, CT	19 GWh	Jul 2015	Aug 2024	Natural Gas
Next Generation Solar Farm	Cypress Creek Renewables	New Haven, VT	4 GWh	Nov 2017	Dec 2023	Solar
Open View Solar Farm	Cross Pollination Inc	New Haven, VT	3 GWh	Aug 2013	Dec 2023	Solar
Beldens	Green Mountain Power Corp	New Haven, VT	19 GWh	Jul 1913	Dec 2023	Water
Yale New Haven - New London	Bloom Energy	New London, CT	15 GWh	Aug 2022	Dec 2023	Natural Gas
Connecticut College	Bloom Energy	New London, CT	8 GWh	Aug 2019	Dec 2023	Natural Gas
Rocky River (CT)	FirstLight Power Resources Services LLC	New Milford, CT	13 GWh	Dec 1927	Aug 2024	Water
Bulls Bridge	FirstLight Power Resources Services LLC	New Milford, CT	42 GWh	Dec 1902	Dec 2023	Water
New Milford Gas Recovery	WM Renewable Energy LLC	New Milford, CT	5 GWh	Apr 2008	Dec 2023	Landfill Gas
Kimberly Clark-Unit 1,2,3	Kimberly-Clark Corporation	New Milford, CT	217 GWh	Mar 2008	Dec 2023	Natural Gas
Bashaw Solar CSG 1, LLC	Bashaw Solar 1, LLC	Newbury, MA	7 GWh	Mar 2017	Dec 2023	Solar
Newington	Essential Power Operating Services, LLC	Newington, NH	861 GWh	Sep 2002	Aug 2024	Natural Gas : 99.9%
Newington	Granite Shore Power	Newington, NH	53 GWh	May 1974	Aug 2024	Natural Gas : 91.5% Residual Fuel Oil : 8.3%
Newport	Great Bay Hydro Corp	Newport, VT	20 GWh	Dec 1935	Dec 2023	Water
Main Rd Community Solar	AES Distributed Energy	Newstead, NY	8 GWh	Jun 2022	Dec 2023	Solar
Newton Rumford Landfill	Newton Municipal Solar LLC - Rumford	Newton, MA	3 GWh	Jun 2017	Dec 2023	Solar
Niagara Depot Solar	Niagara Depot Solar, LLC	Niagara Falls, NY	2 GWh	Jun 2023	Dec 2023	Solar
Town of Norfolk MA at Medway Branch	Luminace Solar Massachusetts, LLC	Norfolk, MA	2 GWh	May 2012	Dec 2023	Solar
Waste Management Crossroads LFGTE	WM Renewable Energy LLC	Norridgewock, ME	20 GWh	Feb 2009	Dec 2023	Landfill Gas
River Road	Norridgewock River Road Solar, LLC	Norridgewock, ME	8 GWh	Feb 2022	Dec 2023	Solar
North Adams Landfill	Syncarpha North Adams, LLC	North Adams, MA	3 GWh	Sep 2015	Dec 2023	Solar
Wheelabrator North Andover	Wheelabrator Environmental Systems	North Andover, MA	241 GWh	Apr 1985	Aug 2024	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
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
JH Solar, LLC CSG	38 Degrees North, LLC	North Brookfield, MA	2 GWh	Oct 2017	Dec 2023	Solar
Ryan Road Solar LLC Hybrid(CSG)	AES Distributed Energy	North Brookfield, MA	8 GWh	Nov 2021	Dec 2023	Solar
Lane Ave Solar LLC	AES Distributed Energy	North Brookfield, MA	2 GWh	Aug 2021	Dec 2023	Solar
Brookfield Solar 2013 LLC	CVI CleanCapital Solar 6	North Brookfield, MA	2 GWh	Nov 2013	Dec 2023	Solar
Ledeaux Solar, LLC CSG	38 Degrees North, LLC	North Brookfield, MA	1 GWh	Oct 2017	Dec 2023	Solar
North Brookfield	Mass Solar, LLC	North Brookfield, MA	4 GWh	May 2014	Dec 2023	Solar
BWC Lake Lashaway, LLC Hybrid	AES Distributed Energy	North Brookfield, MA	8 GWh	Apr 2021	Dec 2023	Solar
Becton Canaan	DG Northeast 1, LLC	North Canaan, CT	3 GWh	Feb 2018	Dec 2023	Solar
Carver	Captona Carver LLC	North Carver, MA	2 GWh	Apr 2017	Dec 2023	Solar
Chester Power Partners	Altus Power America Management, LLC	North Chester, VT	2 GWh	Oct 2014	Dec 2023	Solar
Clarendon Solar Farm	Clarendon Solar Farm, LLC	North Clarendon, VT	3 GWh	Jun 2014	Dec 2023	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	894.0 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	63.3 TWh	554
#51	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.2 TWh	20
#12	New York Independent System Operator	130.0 TWh	1,100
#1	PJM Interconnection, LLC	843.8 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	191.5 TWh	1,943
#9	Tennessee Valley Authority	157.5 TWh	170
#10	Florida Power & Light Co.	147.7 TWh	159
#12	New York Independent System Operator	130.0 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556
#15	ISO New England	102.8 TWh	1,487
#16	Bonneville Power Administration	80.0 TWh	158
#17	Duke Energy Progress East	63.3 TWh	554
#18	Salt River Project Agricultural Improvement and Power District	59.0 TWh	45
#19	PacifiCorp East	52.6 TWh	204