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	May 2025
Annual Generation	130.6 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 \| 52.3% Nuclear \| 19.8% Water \| 19.4% Wind \| 5.3% Other Fuel \| 3%

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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
Gifford CSG	Nautilus Solar Solutions	Schenectady, NY	3 GWh	Nov 2018	Nov 2023	Solar
Rock Island Road Solar Community Solar	RPNY Solar 1, LLC	Gouvernour, NY	6 GWh	Jun 2022	Nov 2023	Solar
NY Ridgeway I CSG	DG Empire Shine, LLC	Lyndonville, NY	924 MWh	Jul 2023	Nov 2023	Solar
Hydraulic Race	Erie Boulevard Hydropower LP	Lockport, NY	8 GWh	Dec 1941	Nov 2023	Water
Herrington Solar	Herrington Solar, LLC	Schaghtiicoke, NY	2 GWh	Aug 2021	Nov 2023	Solar
Richard M Flynn	New York Power Authority	Holtsville, NY	429 GWh	Apr 1994	Nov 2023	Natural Gas : 95.7% Distillate Fuel Oil : 4.3%
ELP - Kipp	ELP Kipp Solar, LLC	Hudson, NY	2 GWh	Jun 2023	Nov 2023	Solar
Smith Creek	LSE Pisces LLC	Nichols, NY	6 GWh	Mar 2021	Dec 2023	Solar
Central Hudson High Falls	Central Hudson Gas & Elec Corp	High Falls, NY	8 GWh	Nov 1986	Dec 2023	Water
Upper Mechanicville	New York State Elec & Gas Corp	Town of Stillwater, NY	80 GWh	Aug 1983	Dec 2023	Water
Jarvis (Hinckley)	New York Power Authority	Hinckley, NY	32 GWh	Jun 1991	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
Neversink	New York Power Authority	Grahmsville, NY	21 GWh	Nov 1953	Dec 2023	Water
South Cairo	Central Hudson Gas & Elec Corp	Cairo, NY	113 MWh	May 1970	Dec 2023	Kerosene
Sturgeon	Central Hudson Gas & Elec Corp	Tillson, NY	48 GWh	Dec 1923	Dec 2023	Water
West Coxsackie	Central Hudson Gas & Elec Corp	Coxsackie, NY	521 MWh	Nov 1969	Dec 2023	Natural Gas
Mill C	New York State Elec & Gas Corp	Town of Plattsburgh, NY	29 GWh	Jul 1943	Dec 2023	Water
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%
Narrows Gas Turbines Generating	U S Power Generating Company LLC	Brooklyn, NY	31 GWh	Apr 1972	Dec 2023	Natural Gas : 96.0% Distillate Fuel Oil : 4.0%
Charles P Keller	Village of Rockville Centre - (NY)	Rockville Centre, NY	24 MWh	Dec 1941	Dec 2023	Natural Gas : 90.3% Distillate Fuel Oil : 9.7%
59th Street	Consolidated Edison Co-NY Inc	New York, NY	612 MWh	May 1969	Dec 2023	Natural Gas
74th Street	Consolidated Edison Co-NY Inc	New York, NY	176 MWh	Sep 1968	Dec 2023	Kerosene
East Hampton	National Grid Generation LLC	East Hampton, NY	12 GWh	Nov 1962	Dec 2023	Distillate Fuel Oil
Glenwood	National Grid Generation LLC	Glenwood Landing, NY	568 MWh	May 1972	Dec 2023	Distillate Fuel Oil
S A Carlson	Jamestown Board of Public Util	Jamestown, NY	52 GWh	Jul 1951	Dec 2023	Natural Gas
Watertown	City of Watertown - (NY)	Watertown, NY	23 GWh	Jul 1924	Dec 2023	Water
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
Crescent	New York Power Authority	Crescent, NY	65 GWh	Jun 1924	Dec 2023	Water
Allens Falls	Erie Boulevard Hydropower LP	Parishville, NY	32 GWh	Dec 1926	Dec 2023	Water
Beardslee	Erie Boulevard Hydropower LP	Little Falls, NY	53 GWh	Dec 1923	Dec 2023	Water
Belfort	Erie Boulevard Hydropower LP	Croghan, NY	13 GWh	Dec 1902	Dec 2023	Water
Bennetts Bridge	Erie Boulevard Hydropower LP	Altmar, NY	96 GWh	Dec 1931	Dec 2023	Water
Blake	Erie Boulevard Hydropower LP	Parishville, NY	70 GWh	Dec 1956	Dec 2023	Water
Browns Falls	Erie Boulevard Hydropower LP	Oswegatchie, NY	59 GWh	Dec 1922	Dec 2023	Water
Chasm	Erie Boulevard Hydropower LP	Malone, NY	27 GWh	Dec 1912	Dec 2023	Water
Colton	Erie Boulevard Hydropower LP	Pierrepont, NY	172 GWh	Dec 1917	Dec 2023	Water
Deferiet	Erie Boulevard Hydropower LP	Deferiet, NY	69 GWh	Dec 1924	Dec 2023	Water
Eagle	Erie Boulevard Hydropower LP	Croghan, NY	33 GWh	Dec 1913	Dec 2023	Water
Eel Weir	Erie Boulevard Hydropower LP	Oswegatchie, NY	9 GWh	Dec 1927	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
Ephratah	Erie Boulevard Hydropower LP	Saint Johnsville, NY	9 GWh	Dec 1910	Dec 2023	Water
East Norfolk	Erie Boulevard Hydropower LP	Norfolk, NY	27 GWh	Dec 1927	Dec 2023	Water
Five Falls	Erie Boulevard Hydropower LP	Colton, NY	115 GWh	Dec 1954	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
Minetto	Erie Boulevard Hydropower LP	Minetto, NY	33 GWh	Dec 1914	Dec 2023	Water
Greenport	Village of Greenport - (NY)	Greenport, NY	14 MWh	May 1957	Dec 2023	Distillate Fuel Oil
Norfolk	Erie Boulevard Hydropower LP	Norfolk, NY	32 GWh	Dec 1927	Dec 2023	Water
Norwood	Erie Boulevard Hydropower LP	Norwood, NY	14 GWh	Dec 1927	Dec 2023	Water
Oswego Falls East	Erie Boulevard Hydropower LP	Fulton, NY	24 GWh	Dec 1913	Dec 2023	Water
Oswego Falls West	Erie Boulevard Hydropower LP	Fulton, NY	8 GWh	Dec 1913	Dec 2023	Water
Parishville	Erie Boulevard Hydropower LP	Parishville, NY	17 GWh	Dec 1924	Dec 2023	Water
Piercefield	Erie Boulevard Hydropower LP	Piercefield, NY	14 GWh	Dec 1923	Dec 2023	Water
Prospect	Erie Boulevard Hydropower LP	Prospect, NY	81 GWh	Dec 1958	Dec 2023	Water
Rainbow Falls Hydro	Erie Boulevard Hydropower LP	Parishville, NY	119 GWh	Dec 1955	Dec 2023	Water
Raymondville	Erie Boulevard Hydropower LP	Norfolk, NY	14 GWh	Dec 1927	Dec 2023	Water
South Edwards	Erie Boulevard Hydropower LP	Fine, NY	22 GWh	Dec 1911	Dec 2023	Water
School Street	Erie Boulevard Hydropower LP	Cohoes, NY	169 GWh	Dec 1914	Dec 2023	Water
Schaghticoke	Erie Boulevard Hydropower LP	Schaghticoke, NY	86 GWh	Dec 1907	Dec 2023	Water
Schuylerville	Erie Boulevard Hydropower LP	Schuylerville, NY	9 GWh	Dec 1918	Dec 2023	Water
Sewalls	Erie Boulevard Hydropower LP	Watertown, NY	15 GWh	Dec 1924	Dec 2023	Water
Sherman Island	Erie Boulevard Hydropower LP	Queensbury, NY	204 GWh	Dec 1922	Dec 2023	Water
Soft Maple	Erie Boulevard Hydropower LP	Croghan, NY	47 GWh	Dec 1924	Dec 2023	Water
South Colton	Erie Boulevard Hydropower LP	Colton, NY	95 GWh	Dec 1953	Dec 2023	Water
Spier Falls	Erie Boulevard Hydropower LP	Gansevoort, NY	253 GWh	Dec 1923	Dec 2023	Water
Stark	Erie Boulevard Hydropower LP	Colton, NY	111 GWh	Dec 1956	Dec 2023	Water
Stewarts Bridge	Erie Boulevard Hydropower LP	Corinth, NY	134 GWh	Dec 1951	Dec 2023	Water
Sugar Island	Erie Boulevard Hydropower LP	Potsdam, NY	30 GWh	Dec 1923	Dec 2023	Water
Taylorville	Erie Boulevard Hydropower LP	Croghan, NY	27 GWh	Dec 1912	Dec 2023	Water
Trenton Falls	Erie Boulevard Hydropower LP	Barneveld, NY	140 GWh	Dec 1918	Dec 2023	Water
Varick	Erie Boulevard Hydropower LP	Oswego, NY	23 GWh	Dec 1925	Dec 2023	Water
Waterport	Erie Boulevard Hydropower LP	Waterport, NY	16 GWh	Dec 1920	Dec 2023	Water
Yaleville	Erie Boulevard Hydropower LP	Norfolk, NY	4 GWh	Dec 1939	Dec 2023	Water
Grahamsville	New York Power Authority	Grahamsville, NY	76 GWh	Dec 1955	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	727.7 GWh	4
#25	Dominion Energy South Carolina, Inc.	26.1 TWh	85
#13	Duke Energy Carolinas	111.4 TWh	556
#17	Duke Energy Progress East	65.1 TWh	554
#52	Duke Energy Progress West	4.1 TWh	10
#15	ISO New England	103.2 TWh	1,487
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.8 TWh	20
#1	PJM Interconnection, LLC	858.5 TWh	2,305
#29	South Carolina Public Service Authority	19.2 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	251.8 TWh	393
#7	California Independent System Operator	190.1 TWh	1,943
#8	Tennessee Valley Authority	158.8 TWh	170
#10	Florida Power & Light Co.	148.3 TWh	159
#12	New York Independent System Operator	130.6 TWh	1,100
#13	Duke Energy Carolinas	111.4 TWh	556
#15	ISO New England	103.2 TWh	1,487
#16	Bonneville Power Administration	82.2 TWh	158
#17	Duke Energy Progress East	65.1 TWh	554
#18	Salt River Project Agricultural Improvement and Power District	58.7 TWh	45