New York Independent System Operator

Balancing Authority Summary Information

New York Independent System Operator is ranked #12 out of 65 balancing authorities in terms of total annual electricity generation.

Balancing Authority	New York Independent System Operator
States	New Jersey New York
Last Update	Apr 2025
Annual Generation	131.1 TWh
Power Plants	1,100
Utilities	542
Ranked #12 out of 65 in terms of net annual generation
Ranked #10 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 52.6% Nuclear \| 19.7% Water \| 19.3% Wind \| 5.2% Other Fuel \| 2.9%

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Daily Net Generation for New York Independent System Operator for the past 3 Years

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Cornell Hydro	Cornell Hydro	Ithaca, NY	3 GWh	Nov 1981	Feb 2025	Water
Henkel U.S. Operations Corporation	Henkel U.S. Operations Corporation	Geneva, NY	2 GWh	Dec 2011	Feb 2025	Wind
Caithness Long Island Energy Center	Caithness Long Island, LLC	Yaphank, NY	2 TWh	Jul 2009	Feb 2025	Natural Gas
Covanta Babylon Inc	Covanta Babylon Inc	West Babylon, NY	127 GWh	Dec 1988	Feb 2025	Non-biogenic Municipal Solid Waste : 54.7% Biogenic Municipal Solid Waste : 44.8% Distillate Fuel Oil : 0.6%
Copenhagen Wind Farm	EDF Renewable Asset Holdings, Inc.	Copenhagen, NY	250 GWh	Nov 2018	Feb 2025	Wind
Covanta Hempstead	Covanta Hempstead Company	Westbury, NY	595 GWh	Mar 1989	Feb 2025	Non-biogenic Municipal Solid Waste : 54.9% Biogenic Municipal Solid Waste : 44.9%
Arthur Kill Generating Station	NRG Arthur Kill Operations Inc	Staten Island, NY	2 TWh	Aug 1959	Feb 2025	Natural Gas
East River	Consolidated Edison Co-NY Inc	New York, NY	3 TWh	Oct 1951	Feb 2025	Natural Gas
Astoria Energy	Astoria Energy LLC	New York, NY	4 TWh	Apr 2006	Feb 2025	Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
Ravenswood	Ravenswood Operations LLC	Long Island, NY	3 TWh	Jan 1963	Feb 2025	Natural Gas : 98.7% Kerosene : 1.2%
Wheelabrator Hudson Falls	Wheelabrator Environmental Systems	Hudson Falls, NY	69 GWh	Oct 1991	Feb 2025	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
High River Energy Center, LLC	High River Energy Center, LLC	Florida, NY	80 GWh	-	Feb 2025	Solar
E F Barrett	National Grid Generation LLC	Island Park, NY	1 TWh	Oct 1956	Feb 2025	Natural Gas : 98.8% Residual Fuel Oil : 0.9%
Astoria Energy II	Astoria Energy II LLC	Astoria, NY	4 TWh	Jun 2011	Feb 2025	Natural Gas : 97.6% Distillate Fuel Oil : 2.4%
Onondaga County Resource Recovery	Covanta Onondega LP	Jamesville, NY	210 GWh	Oct 1994	Feb 2025	Non-biogenic Municipal Solid Waste : 54.7% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.6%
Northport	National Grid Generation LLC	Northport, NY	4 TWh	Feb 1967	Feb 2025	Natural Gas : 94.8% Residual Fuel Oil : 5.2%
Port Jefferson	National Grid Generation LLC	Port Jefferson, NY	339 GWh	Oct 1958	Feb 2025	Natural Gas : 93.0% Residual Fuel Oil : 6.5%
Bethlehem Energy Center	Generation Bridge II New York LLC	Glenmont, NY	3 TWh	Jun 2005	Feb 2025	Natural Gas
Covanta Niagara I, LLC	Covanta Energy of Niagara LP	Niagara Falls, NY	178 GWh	Jul 1980	Feb 2025	Non-biogenic Municipal Solid Waste : 50.7% Biogenic Municipal Solid Waste : 41.5% Natural Gas : 7.8%
RED-Rochester, LLC	RED-Rochester, LLC	Rochester, NY	322 GWh	Jul 1954	Feb 2025	Natural Gas
Seneca Energy	Seneca Energy II	Seneca Falls, NY	74 GWh	Feb 1996	Feb 2025	Landfill Gas
Marble River Wind Farm	Marble River, LLC	Churubusco, NY	437 GWh	Oct 2012	Feb 2025	Wind
Empire Generating Co LLC	Empire Generating Co LLC	Rensselaer, NY	3 TWh	Aug 2010	Feb 2025	Natural Gas : 98.9% Distillate Fuel Oil : 1.1%
Sithe Independence Station	Sithe/Independence LLC	Oswego, NY	6 TWh	Jul 1994	Feb 2025	Natural Gas
Lederle Laboratories	Veolia NA - Municipal & Commercial Business	Pearl River, NY	147 GWh	Jun 1990	Feb 2025	Natural Gas : 99.5% Distillate Fuel Oil : 0.5%
Tannery Road Landfill	Tannery Road Solar, LLC	Rome, NY	2 GWh	Jul 2016	Feb 2025	Solar
Shoreham Solar Commons	Duke Energy Renewables Services	Shoreham, NY	51 GWh	Jun 2018	Feb 2025	Solar
Long Island Solar Farm LLC	Long Island Solar Farm LLC	Upton, NY	48 GWh	Nov 2011	Feb 2025	Solar
Number Three Wind Project	Invenergy Services LLC	Lowville, NY	287 GWh	Apr 2023	Feb 2025	Wind
Bluestone Wind, LLC	Bluestone Wind, LLC	Sanford, NY	305 GWh	Sep 2023	Feb 2025	Wind
Town of Williamson Landfill PV	MN8 Energy LLC	Williamson, NY	1 GWh	Nov 2014	Feb 2025	Solar
Roseton Generating Facility	CCI Roseton LLC	Newsburgh, NY	278 GWh	Aug 1974	Feb 2025	Natural Gas : 76.9% Residual Fuel Oil : 23.1%
Robert Moses Niagara	New York Power Authority	Lewiston, NY	15 TWh	Dec 1960	Feb 2025	Water
Wheelabrator Westchester	Wheelabrator Environmental Systems	Peekskill, NY	395 GWh	Sep 1984	Feb 2025	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Huntington Resource Recovery Facility	Huntington Resource Recovery	East Northport, NY	194 GWh	Nov 1991	Feb 2025	Non-biogenic Municipal Solid Waste : 54.9% Biogenic Municipal Solid Waste : 44.9%
Nine Mile Point Nuclear Station	Constellation Nuclear	Lycoming, NY	15 TWh	Nov 1969	Feb 2025	Nuclear
Linden Cogen Plant	EFS Cogen Holdings I LLC	Linden, NJ	5 TWh	Feb 1992	Feb 2025	Natural Gas : 98.6% Other Gas : 0.8% Distillate Fuel Oil : 0.6%
R E Ginna Nuclear Power Plant	Constellation Nuclear	Ontario, NY	5 TWh	Jun 1970	Feb 2025	Nuclear
Athens Generating Plant	New Athens Generating Company LLC	Athens, NY	4 TWh	Mar 2003	Feb 2025	Natural Gas
Brooklyn Navy Yard Cogeneration	Brooklyn Navy Yard Cogen PLP	Brooklyn, NY	2 TWh	Feb 1996	Feb 2025	Natural Gas : 98.2% Distillate Fuel Oil : 1.8%
Ticonderoga Mill	Sylvamo North America LLC	Ticonderoga, NY	191 GWh	Dec 1969	Feb 2025	Natural Gas : 58.2% Black Liquor : 35.2% Residual Fuel Oil : 4.0% Wood/Wood Waste Solids : 2.7%
Zeltmann	New York Power Authority	Astoria, NY	4 TWh	Nov 2005	Feb 2025	Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
Brookfield Power Glen Falls Hydro	Erie Boulevard Hydropower LP	Glen Falls, NY	43 GWh	Dec 1943	Feb 2025	Water
Maple Ridge Wind Farm	Flat Rock Windpower, LLC	Lowville, NY	670 GWh	Nov 2005	Feb 2025	Wind
Madison Windpower LLC	Madison Windpower LLC	Madison, NY	5 GWh	Sep 2000	Feb 2025	Wind
MacArthur Waste to Energy Facility	Covanta MacArthur Renewable Energy	Ronkonkoma, NY	54 GWh	Feb 1990	Feb 2025	Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7%
James A Fitzpatrick	Constellation Nuclear	Lycoming, NY	7 TWh	Jul 1976	Feb 2025	Nuclear
Cassadaga Wind Farm	RWE Renewables Americas, LLC	Cherry Creek, NY	221 GWh	Jun 2021	Feb 2025	Wind
Cricket Valley Energy	Cricket Valley Energy Center LLC	Dover, NY	4 TWh	Mar 2020	Feb 2025	Natural Gas
Steel Sun	CleanCapital Holdings	Lackawanna, NY	4 GWh	Nov 2016	Feb 2025	Solar
Roaring Brook, LLC	Avangrid Renewables LLC	Lowville, NY	179 GWh	Sep 2021	Feb 2025	Wind
Baron Winds Farm	RWE Renewables Americas, LLC	Cohocton, NY	343 GWh	Jan 2023	Feb 2025	Wind
Jericho Rise Wind Farm LLC	Jericho Rise Wind Farm LLC	Chateaugay, NY	227 GWh	Nov 2016	Feb 2025	Wind
Bayonne Energy Center	Bayonne Energy Center LLC	Bayonne, NJ	728 GWh	May 2012	Feb 2025	Natural Gas
East Point Energy Center, LLC	East Point Energy Center, LLC	Sharon Springs, NY	67 GWh	-	Feb 2025	Solar
South Fork Wind	Orsted Wind Power North America LLC	East Hampton, NY	329 GWh	-	Feb 2025	Wind
Ball Hill Wind Energy, LLC	Ball Hill Wind Energy, LLC	Forestville, NY	265 GWh	Nov 2023	Feb 2025	Wind
Eight Point Wind	Eight Point Wind, LLC	Rexville, NY	278 GWh	Jan 2023	Feb 2025	Wind
Arkwright Summit Wind Farm LLC	Arkwright Summit Wind Farm LLC	Fredonia, NY	242 GWh	Jul 2018	Feb 2025	Wind
CPV Valley Energy Center	CPV Valley, LLC	Wawayanda, NY	5 TWh	Apr 2018	Feb 2025	Natural Gas
Bowline Point	Bowline, LLC	West Haverstraw, NY	2 TWh	Aug 1972	Feb 2025	Natural Gas
Robert Moses Power Dam	New York Power Authority	Massena, NY	7 TWh	Jun 1958	Feb 2025	Water
Oswego Harbor Power	Oswego Harbor Power	Oswego, NY	52 GWh	May 1975	Jan 2025	Residual Fuel Oil
Central Hudson High Falls	Central Hudson Gas & Elec Corp	High Falls, NY	8 GWh	Nov 1986	Dec 2023	Water
Danskammer Generating Station	Danskammer Energy	Newburgh, NY	19 GWh	Nov 1951	Dec 2023	Natural Gas : 99.9%
Dashville	Central Hudson Gas & Elec Corp	Dashville, NY	13 GWh	Dec 1919	Dec 2023	Water
West Coxsackie	Central Hudson Gas & Elec Corp	Coxsackie, NY	521 MWh	Nov 1969	Dec 2023	Natural Gas
Gowanus Gas Turbines Generating	U S Power Generating Company LLC	Brooklyn, NY	11 GWh	May 1971	Dec 2023	Natural Gas : 93.2% Distillate Fuel Oil : 6.8%
Shoreham	National Grid Generation LLC	Wading River, NY	767 MWh	Mar 1966	Dec 2023	Distillate Fuel Oil
Southold	National Grid Generation LLC	Greenport, NY	693 MWh	Jul 1964	Dec 2023	Distillate Fuel Oil
Cadyville	New York State Elec & Gas Corp	Town ofSchuyler Falls, NY	26 GWh	Jul 1921	Dec 2023	Water
Greenidge Generation LLC	Greenidge Generation Holdings LLC	Dresden, NY	624 GWh	Nov 1953	Dec 2023	Natural Gas
Harris Lake	New York State Elec & Gas Corp	Town of Newcomb, NY	1 MWh	Aug 1967	Dec 2023	Distillate Fuel Oil
High Falls - Saranac NY	New York State Elec & Gas Corp	Town of Saranac, NY	88 GWh	Jul 1948	Dec 2023	Water
Allens Falls	Erie Boulevard Hydropower LP	Parishville, NY	32 GWh	Dec 1926	Dec 2023	Water
Effley	Erie Boulevard Hydropower LP	Croghan, NY	17 GWh	Dec 1901	Dec 2023	Water
Elmer	Erie Boulevard Hydropower LP	Croghan, NY	11 GWh	Dec 1915	Dec 2023	Water
Flat Rock	Erie Boulevard Hydropower LP	Fine, NY	21 GWh	Dec 1923	Dec 2023	Water
Franklin (NY)	Erie Boulevard Hydropower LP	Franklin, NY	13 GWh	Dec 1910	Dec 2023	Water
Fulton Hydro	Erie Boulevard Hydropower LP	Fulton, NY	6 GWh	Dec 1923	Dec 2023	Water
Glenwood Hydro	Erie Boulevard Hydropower LP	Medina, NY	8 GWh	Dec 1949	Dec 2023	Water
Granby	Erie Boulevard Hydropower LP	Fulton, NY	37 GWh	Dec 1982	Dec 2023	Water
Hannawa	Erie Boulevard Hydropower LP	Pierrepont, NY	54 GWh	Dec 1913	Dec 2023	Water
Herrings	Erie Boulevard Hydropower LP	Carthage, NY	27 GWh	Dec 1923	Dec 2023	Water
Heuvelton	Erie Boulevard Hydropower LP	Village of Heuvelton, NY	5 GWh	Dec 1923	Dec 2023	Water
High Dam	Oswego City of	Oswego, NY	4 GWh	Jul 1928	Dec 2023	Water
High Falls - Croghan NY	Erie Boulevard Hydropower LP	Croghan, NY	35 GWh	Dec 1924	Dec 2023	Water
Higley	Erie Boulevard Hydropower LP	Colton, NY	39 GWh	Aug 2003	Dec 2023	Water
Inghams	Erie Boulevard Hydropower LP	Little Falls, NY	30 GWh	Dec 1911	Dec 2023	Water
Johnsonville Dam	Erie Boulevard Hydropower LP	Johnsonville, NY	14 GWh	Dec 1908	Dec 2023	Water
Kamargo	Erie Boulevard Hydropower LP	Black River, NY	29 GWh	Dec 1920	Dec 2023	Water
Lighthouse Hill	Erie Boulevard Hydropower LP	Altmar, NY	24 GWh	Dec 1929	Dec 2023	Water
Macomb	Erie Boulevard Hydropower LP	Malone, NY	7 GWh	Dec 1939	Dec 2023	Water
Smith Creek	LSE Pisces LLC	Nichols, NY	6 GWh	Mar 2021	Dec 2023	Solar
Trenton Falls	Erie Boulevard Hydropower LP	Barneveld, NY	140 GWh	Dec 1918	Dec 2023	Water
Hillburn	Alliance NYGT, LLC	Hillburn, NY	665 MWh	Jun 1972	Dec 2023	Natural Gas
Mongaup Falls	Eagle Creek Renewable Energy, LLC	Forestburgh, NY	9 GWh	Jun 1923	Dec 2023	Water
Rio	Eagle Creek Renewable Energy, LLC	Glen Spey, NY	31 GWh	Nov 1927	Dec 2023	Water
Shoemaker	Alliance NYGT, LLC	Middletown, NY	563 MWh	Jun 1972	Dec 2023	Natural Gas
Swinging Bridge 2	Eagle Creek Renewable Energy, LLC	Forestburgh, NY	18 GWh	Jul 1939	Dec 2023	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	749.2 GWh	4
#25	Dominion Energy South Carolina, Inc.	26.2 TWh	85
#13	Duke Energy Carolinas	111.3 TWh	556
#17	Duke Energy Progress East	65.3 TWh	554
#51	Duke Energy Progress West	4.2 TWh	10
#15	ISO New England	103.6 TWh	1,487
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.1 TWh	20
#1	PJM Interconnection, LLC	859.9 TWh	2,305
#29	South Carolina Public Service Authority	19.3 TWh	33
#60	Southeastern Power Administration	1.4 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#6	Southern Company Services, Inc. - Trans	252.8 TWh	393
#7	California Independent System Operator	189.5 TWh	1,943
#8	Tennessee Valley Authority	158.9 TWh	170
#10	Florida Power & Light Co.	148.5 TWh	159
#12	New York Independent System Operator	131.1 TWh	1,100
#13	Duke Energy Carolinas	111.3 TWh	556
#15	ISO New England	103.6 TWh	1,487
#16	Bonneville Power Administration	82.9 TWh	158
#17	Duke Energy Progress East	65.3 TWh	554
#18	Salt River Project Agricultural Improvement and Power District	58.6 TWh	45