New York Independent System Operator

Balancing Authority Summary Information

New York Independent System Operator is ranked #12 out of 64 balancing authorities in terms of total annual electricity generation.

Balancing Authority	New York Independent System Operator
States	New Jersey New York
Last Update	Oct 2026
Annual Generation	134.2 TWh
Power Plants	1,334
Utilities	620
Ranked #12 out of 64 in terms of net annual generation
Ranked #9 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 54.2% Nuclear \| 19.4% Water \| 18.2% Wind \| 5.1% Other Fuel \| 2.8%

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

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Nine Mile Point Nuclear Station	Constellation Nuclear	Lycoming, NY	16 TWh	Nov 1969	Jul 2026	Nuclear
Robert Moses Niagara	New York Power Authority	Lewiston, NY	14 TWh	Dec 1960	Jul 2026	Water
James A Fitzpatrick	Constellation Nuclear	Lycoming, NY	7 TWh	Jul 1976	Jul 2026	Nuclear
Robert Moses Power Dam	New York Power Authority	Massena, NY	7 TWh	Jun 1958	Jul 2026	Water
Cricket Valley Energy	Cricket Valley Energy Center LLC	Dover, NY	7 TWh	Mar 2020	Jul 2026	Natural Gas
Sithe Independence Station	Sithe/Independence LLC	Oswego, NY	7 TWh	Jul 1994	Jul 2026	Natural Gas
Linden Cogen Plant	EFS Cogen Holdings I LLC	Linden, NJ	6 TWh	Feb 1992	Jul 2026	Natural Gas : 99.9%
R E Ginna Nuclear Power Plant	Constellation Nuclear	Ontario, NY	5 TWh	Jun 1970	Jul 2026	Nuclear
CPV Valley Energy Center	CPV Valley, LLC	Wawayanda, NY	5 TWh	Apr 2018	Jul 2026	Natural Gas
Northport	National Grid Generation LLC	Northport, NY	4 TWh	Feb 1967	Jul 2026	Natural Gas : 88.3% Residual Fuel Oil : 11.7%
Astoria Energy	Astoria Energy LLC	New York, NY	4 TWh	Apr 2006	Jul 2026	Natural Gas : 95.5% Distillate Fuel Oil : 4.5%
Bethlehem Energy Center	GB II New York LLC	Glenmont, NY	3 TWh	Jun 2005	Jul 2026	Natural Gas
Ravenswood	Ravenswood Operations LLC	Long Island, NY	3 TWh	Jan 1963	Jul 2026	Natural Gas : 84.6% Distillate Fuel Oil : 15.4%
Astoria Energy II	Astoria Energy II LLC	Astoria, NY	3 TWh	Jun 2011	Jul 2026	Natural Gas : 95.4% Distillate Fuel Oil : 4.6%
East River	Consolidated Edison Co-NY Inc	New York, NY	3 TWh	Oct 1951	Jul 2026	Natural Gas
Empire Generating Co LLC	Empire Generating Co LLC	Rensselaer, NY	3 TWh	Aug 2010	Jul 2026	Natural Gas : 97.2% Distillate Fuel Oil : 2.8%
Athens Generating Plant	New Athens Generating Company LLC	Athens, NY	3 TWh	Mar 2003	Jul 2026	Natural Gas
Caithness Long Island Energy Center	Caithness Long Island, LLC	Yaphank, NY	2 TWh	Jul 2009	Jul 2026	Natural Gas
Zeltmann	New York Power Authority	Astoria, NY	2 TWh	Nov 2005	Jul 2026	Natural Gas
Brooklyn Navy Yard Cogeneration	Brooklyn Navy Yard Cogen PLP	Brooklyn, NY	2 TWh	Feb 1996	Jul 2026	Natural Gas : 97.7% Distillate Fuel Oil : 2.3%
Bowline Point	Bowline, LLC	West Haverstraw, NY	2 TWh	Aug 1972	Jul 2026	Natural Gas : 96.4% Residual Fuel Oil : 3.6%
Arthur Kill Generating Station	Arthur Kill Power, LLC	Staten Island, NY	1 TWh	Aug 1959	Jul 2026	Natural Gas
Astoria Generating Station	Astoria Generating Company, L.P.	Astoria, NY	1 TWh	Feb 1954	Dec 2025	Natural Gas : 98.9% Residual Fuel Oil : 1.1%
E F Barrett	National Grid Generation LLC	Island Park, NY	1 TWh	Oct 1956	Jul 2026	Natural Gas : 95.6% Residual Fuel Oil : 3.8% Distillate Fuel Oil : 0.6%
Bayonne Energy Center	Bayonne Energy Center LLC	Bayonne, NJ	939 GWh	May 2012	Jul 2026	Natural Gas : 96.8% Distillate Fuel Oil : 3.2%
Bethpage Power Plant	Calpine Eastern Corp	Hicksville, NY	819 GWh	Jul 1989	Dec 2025	Natural Gas
Roseton Generating Facility	CCI Roseton LLC	Newsburgh, NY	684 GWh	Aug 1974	Jul 2026	Natural Gas : 71.4% Residual Fuel Oil : 28.6%
Greenidge Generation LLC	Greenidge Generation Holdings LLC	Dresden, NY	625 GWh	Nov 1953	Dec 2025	Natural Gas
Maple Ridge Wind Farm	Flat Rock Windpower, LLC	Lowville, NY	616 GWh	Nov 2005	Jul 2026	Wind
Kennedy International Airport Cogen	KIAC Partners	Jamaica, NY	609 GWh	Nov 1994	Dec 2025	Natural Gas
Indeck Corinth Energy Center	Indeck-Corinth Ltd Partnership	Corinth, NY	544 GWh	Jan 1995	Dec 2025	Natural Gas
South Fork Wind	Orsted Wind Power North America LLC	East Hampton, NY	520 GWh	Jun 2024	Jul 2026	Wind
Marble River Wind Farm	Marble River, LLC	Churubusco, NY	479 GWh	Oct 2012	Jul 2026	Wind
Covanta Hempstead	Covanta Hempstead Company	Westbury, NY	471 GWh	Mar 1989	Jul 2026	Non-biogenic Municipal Solid Waste : 54.7% Biogenic Municipal Solid Waste : 44.8%
Lockport Energy Associates LP	Lockport Energy Associates LP	Lockport, NY	413 GWh	Jun 1992	Dec 2025	Natural Gas
World Generation X	North American Energy Services	North Tonawanda, NY	404 GWh	Jun 1993	Dec 2025	Natural Gas
Port Jefferson	National Grid Generation LLC	Port Jefferson, NY	404 GWh	Oct 1958	Jul 2026	Natural Gas : 80.8% Residual Fuel Oil : 17.9% Distillate Fuel Oil : 1.3%
Saranac Facility	Saranac Power Partners LP	Plattsburgh, NY	387 GWh	May 1994	Dec 2025	Natural Gas
Wheelabrator Westchester	Wheelabrator Environmental Systems	Peekskill, NY	384 GWh	Sep 1984	Jul 2026	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
Richard M Flynn	New York Power Authority	Holtsville, NY	347 GWh	Apr 1994	Dec 2025	Natural Gas : 93.8% Distillate Fuel Oil : 6.2%
Selkirk Cogen	Selkirk Cogen Partners LP	Selkirk, NY	346 GWh	Mar 1992	Oct 2025	Natural Gas
RED-Rochester, LLC	RED-Rochester, LLC	Rochester, NY	342 GWh	Jul 1954	Jul 2026	Natural Gas
Bluestone Wind, LLC	Bluestone Wind, LLC	Sanford, NY	310 GWh	Sep 2023	Jul 2026	Wind
Baron Winds Farm	RWE Clean Energy	Cohocton, NY	305 GWh	Jan 2023	Jul 2026	Wind
Morris Ridge Solar	Morris Ridge Solar Energy Center, LLC	Mount Morris, NY	300 GWh	Oct 2024	Jul 2026	Solar
Stony Brook Cogen Plant	Nissequoque Cogen Partners	Stony Brook, NY	285 GWh	Mar 1995	Dec 2025	Natural Gas
Curtis Palmer Hydroelectric	Palmer Hydroelectric	Corinth, NY	277 GWh	Sep 1985	Dec 2025	Water
Number Three Wind Project	Invenergy Services LLC	Lowville, NY	276 GWh	Apr 2023	Jul 2026	Wind
Ball Hill Wind Energy, LLC	Ball Hill Wind Energy, LLC	Forestville, NY	276 GWh	Nov 2023	Jul 2026	Wind
Eight Point Wind	Eight Point Wind, LLC	Rexville, NY	265 GWh	Jan 2023	Jul 2026	Wind
Wethersfield	Valcour Operating Services, LLC	Gainsville, NY	256 GWh	Mar 2009	Dec 2025	Wind
Copenhagen Wind Farm	EDF Renewable Asset Holdings, Inc.	Copenhagen, NY	252 GWh	Nov 2018	Jul 2026	Wind
High Sheldon Wind Farm	Invenergy Services LLC	Strykersville, NY	248 GWh	Jan 2009	Dec 2025	Wind
Arkwright Summit Wind Farm LLC	Arkwright Summit Wind Farm LLC	Fredonia, NY	242 GWh	Jul 2018	Jul 2026	Wind
Stony Creek Wind Farm NY	Invenergy Services LLC	Strykersville, NY	240 GWh	Oct 2013	Dec 2025	Wind
Cassadaga Wind Farm	RWE Clean Energy	Cherry Creek, NY	236 GWh	Jun 2021	Jul 2026	Wind
Cornell University Central Heat	Cornell University - CHP	Ithaca, NY	230 GWh	Jun 1988	Dec 2025	Natural Gas
Carr Street Generating Station	Carr Street Generating Sta LP	East Syracuse, NY	228 GWh	Jun 1993	Dec 2025	Natural Gas
Ticonderoga Mill	Sylvamo North America LLC	Ticonderoga, NY	210 GWh	Dec 1969	Jul 2026	Natural Gas : 54.9% Black Liquor : 36.7% Residual Fuel Oil : 4.8% Wood/Wood Waste Solids : 3.6%
Bliss (NY)	Valcour Operating Services, LLC	Bliss, NY	207 GWh	Apr 2008	Dec 2025	Wind
Cohocton Wind Project	Evergreen Wind, LLC	Cohocton, NY	206 GWh	Dec 2008	Dec 2025	Wind
Chateaugay	Valcour Operating Services, LLC	Chateaugay, NY	201 GWh	Mar 2009	Dec 2025	Wind
Huntington Resource Recovery Facility	Huntington Resource Recovery	East Northport, NY	199 GWh	Nov 1991	Jul 2026	Non-biogenic Municipal Solid Waste : 54.8% Biogenic Municipal Solid Waste : 44.9%
Roaring Brook, LLC	Avangrid Power LLC	Lowville, NY	193 GWh	Sep 2021	Jul 2026	Wind
Onondaga County Resource Recovery	Covanta Onondega LP	Jamesville, NY	181 GWh	Oct 1994	Jul 2026	Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 2.1%
Clinton	Valcour Operating Services, LLC	Churubusco, NY	178 GWh	Apr 2008	Dec 2025	Wind
Altona	Valcour Operating Services, LLC	Altona, NY	177 GWh	Mar 2009	Dec 2025	Wind
Reworld Niagara I	Reworld Niagara I, LLC	Niagara Falls, NY	174 GWh	Jul 1980	Jul 2026	Non-biogenic Municipal Solid Waste : 50.6% Biogenic Municipal Solid Waste : 41.4% Natural Gas : 8.0%
Hardscrabble Wind Power LLC	Avangrid Power LLC	Little Falls, NY	172 GWh	Dec 2010	Dec 2025	Wind
Hudson Falls Hydroelectric Project	Boralex Hydro Operations Inc	South Glens Falls, NY	170 GWh	Oct 1995	Dec 2025	Water
Ellenburg	Valcour Operating Services, LLC	Churubusco, NY	168 GWh	Apr 2008	Dec 2025	Wind
Jericho Rise Wind Farm LLC	Jericho Rise Wind Farm LLC	Chateaugay, NY	161 GWh	Nov 2016	Jul 2026	Wind
Colton	Erie Boulevard Hydropower LP	Pierrepont, NY	154 GWh	Dec 1917	Dec 2025	Water
High River Energy Center, LLC	High River Energy Center, LLC	Florida, NY	150 GWh	Jul 2024	Jul 2026	Solar
School Street	Erie Boulevard Hydropower LP	Cohoes, NY	146 GWh	Dec 1914	Dec 2025	Water
Narrows Gas Turbines Generating	Astoria Generating Company, L.P.	Brooklyn, NY	145 GWh	Apr 1972	Dec 2025	Natural Gas : 95.2% Distillate Fuel Oil : 4.8%
Castleton Energy Center	Fortistar Castleton Power	Castleton, NY	144 GWh	Jan 1992	Dec 2025	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
Lederle Laboratories	Veolia NA - Municipal & Commercial Business	Pearl River, NY	141 GWh	Jun 1990	Jul 2026	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
Sherman Island	Erie Boulevard Hydropower LP	Queensbury, NY	139 GWh	Dec 1922	Dec 2025	Water
Glenwood Landing	National Grid Generation LLC	Glenwood Landing, NY	137 GWh	Mar 1967	Dec 2025	Natural Gas : 93.7% Distillate Fuel Oil : 6.3%
Howard Wind Farm	Greenbacker Renewable Energy Corporation	Hornell, NY	134 GWh	Nov 2011	Dec 2025	Wind
Reworld Babylon Inc	Reworld Babylon Inc	West Babylon, NY	123 GWh	Dec 1988	Jul 2026	Non-biogenic Municipal Solid Waste : 54.5% Biogenic Municipal Solid Waste : 44.6% Distillate Fuel Oil : 0.9%
Oswego Harbor Power	Oswego Harbor Power	Oswego, NY	123 GWh	May 1975	Jul 2026	Residual Fuel Oil : 96.3% Natural Gas : 3.7%
Vernon Boulevard	New York Power Authority	Long Island City, NY	120 GWh	Jul 2001	Dec 2025	Natural Gas
Hell Gate	New York Power Authority	Bronx, NY	120 GWh	Jun 2001	Dec 2025	Natural Gas
Trenton Falls	Erie Boulevard Hydropower LP	Barneveld, NY	118 GWh	Dec 1918	Dec 2025	Water
Indeck Oswego Energy Center	Indeck-Oswego Ltd Partnership	Oswego, NY	118 GWh	May 1990	Dec 2025	Natural Gas
Harlem River Yard	New York Power Authority	Bronx, NY	115 GWh	Jun 2001	Dec 2025	Natural Gas
Finch Paper	Finch Paper LLC	Glen Falls, NY	105 GWh	May 1987	Dec 2025	Wood Waste Liquids, excluding Black Liquor : 41.2% Natural Gas : 34.5% Wood/Wood Waste Solids : 24.4%
East Point Energy Center	East Point Energy Center, LLC	Sharon Springs, NY	104 GWh	Apr 2024	Jul 2026	Solar
Joseph J Seymour Power Project	New York Power Authority	Brooklyn, NY	99 GWh	Jun 2001	Dec 2025	Natural Gas
Indeck Silver Springs Energy Center	Indeck-Energy Serv Silver Spg	Silver Springs, NY	94 GWh	Apr 1991	Dec 2025	Natural Gas
Pinelawn Power LLC	Pinelawn Power LLC	West Babylon, NY	93 GWh	Jun 2005	Nov 2025	Natural Gas : 97.8% Kerosene : 2.2%
Munnsville Wind Farm LLC	RWE Clean Energy	Madison, NY	93 GWh	Sep 2007	Dec 2025	Wind
North 1st	New York Power Authority	Brooklyn, NY	93 GWh	Jul 2001	Dec 2025	Natural Gas
Bennetts Bridge	Erie Boulevard Hydropower LP	Altmar, NY	90 GWh	Dec 1931	Dec 2025	Water
Stewarts Bridge	Erie Boulevard Hydropower LP	Corinth, NY	90 GWh	Dec 1951	Dec 2025	Water
Riverbay	Riverbay Corp	New York, NY	88 GWh	Feb 2011	Dec 2025	Natural Gas : 99.8%
Dutch Hill Wind Project	Evergreen Wind, LLC	Cohocton, NY	88 GWh	Dec 2008	Dec 2025	Wind
Grahamsville	New York Power Authority	Grahamsville, NY	85 GWh	Dec 1955	Dec 2025	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.1 GWh	4
#24	Dominion Energy South Carolina, Inc.	26.0 TWh	83
#13	Duke Energy Carolinas	113.6 TWh	578
#17	Duke Energy Progress East	66.1 TWh	574
#50	Duke Energy Progress West	4.6 TWh	15
#15	ISO New England	112.3 TWh	1,667
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.2 TWh	25
#1	PJM Interconnection, LLC	891.7 TWh	2,806
#28	South Carolina Public Service Authority	19.7 TWh	35
#59	Southeastern Power Administration	1.2 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#6	Southern Company Services, Inc. - Trans	258.9 TWh	423
#7	California Independent System Operator	167.6 TWh	2,170
#9	Tennessee Valley Authority	166.3 TWh	209
#10	Florida Power & Light Co.	152.8 TWh	188
#12	New York Independent System Operator	134.2 TWh	1,334
#13	Duke Energy Carolinas	113.6 TWh	578
#15	ISO New England	112.3 TWh	1,667
#16	Bonneville Power Administration	91.2 TWh	170
#17	Duke Energy Progress East	66.1 TWh	574
#18	PacifiCorp East	61.3 TWh	223