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	Jul 2026
Annual Generation	134.3 TWh
Power Plants	1,299
Utilities	614
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 \| 54.3% Nuclear \| 19.7% Water \| 17.8% Wind \| 5% Other Fuel \| 2.9%

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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
Clinton	Valcour Operating Services, LLC	Churubusco, NY	178 GWh	Apr 2008	Dec 2025	Wind
Ellenburg	Valcour Operating Services, LLC	Churubusco, NY	168 GWh	Apr 2008	Dec 2025	Wind
Bliss (NY)	Valcour Operating Services, LLC	Bliss, NY	207 GWh	Apr 2008	Dec 2025	Wind
South Oaks Hospital	South Oak Hospital	Amityville, NY	7 GWh	Mar 2008	Dec 2025	Natural Gas
Munnsville Wind Farm LLC	RWE Clean Energy	Madison, NY	93 GWh	Sep 2007	Dec 2025	Wind
Kings Plaza Total Energy Plant (TEP)	Veolia North America	Brooklyn, NY	22 GWh	Aug 2007	Dec 2025	Natural Gas
Chaffee Gas Recovery	WM Renewable Energy LLC	Chaffee, NY	37 GWh	Jul 2007	Dec 2025	Landfill Gas
Mill Seat Renewable Energy Facility	WM Renewable Energy LLC	Bergen, NY	52 GWh	Jun 2007	Dec 2025	Landfill Gas
Steel Winds Wind Farm	Evergreen Wind, LLC	Lackawanna, NY	62 GWh	May 2007	Dec 2025	Wind
Astoria Energy	Astoria Energy LLC	New York, NY	4 TWh	Apr 2006	May 2026	Natural Gas : 95.5% Distillate Fuel Oil : 4.5%
Nanticoke LFG	Broome Energy Resources, LLC	Binghamton, NY	28 GWh	Feb 2006	Dec 2024	Landfill Gas
Modern Innovative Energy LLC	Innovative Energy Systems Inc	Youngstown, NY	33 GWh	Jan 2006	Dec 2025	Landfill Gas
Colonie LFGTE Facility	Innovative Energy Systems Inc	Cohoes, NY	40 GWh	Jan 2006	Dec 2025	Landfill Gas
Zeltmann	New York Power Authority	Astoria, NY	2 TWh	Nov 2005	May 2026	Natural Gas
Maple Ridge Wind Farm	Flat Rock Windpower, LLC	Lowville, NY	612 GWh	Nov 2005	May 2026	Wind
University of Rochester	University of Rochester	Rochester, NY	27 GWh	Sep 2005	Dec 2025	Natural Gas
NY Times Daily Production Facility	The NY Times Production Facility	Flushing, NY	237 MWh	Aug 2005	Dec 2025	Distillate Fuel Oil
Bethlehem Energy Center	GB II New York LLC	Glenmont, NY	3 TWh	Jun 2005	May 2026	Natural Gas
Pinelawn Power LLC	Pinelawn Power LLC	West Babylon, NY	93 GWh	Jun 2005	Nov 2025	Natural Gas : 97.8% Kerosene : 2.2%
Equus Freeport Power	Equus Power I, L.P.	Village of Freeport, NY	60 GWh	May 2004	Dec 2025	Natural Gas : 99.6%
HVCC Cogen Plant	Hudson Valley Community College	Troy, NY	13 GWh	Mar 2004	Dec 2025	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
William Floyd School District	William Floyd School District	Mastic Beach, NY	3 GWh	Jan 2004	Dec 2025	Natural Gas : 95.0% Distillate Fuel Oil : 5.0%
Ontario LFGTE	Seneca Energy II	Stanley, NY	78 GWh	Oct 2003	Dec 2025	Landfill Gas
Higley	Erie Boulevard Hydropower LP	Colton, NY	31 GWh	Aug 2003	Dec 2025	Water
Hawkeye Energy Greenport LLC	Hawkeye Energy Greenport LLC	Greenport, NY	25 GWh	Jun 2003	Dec 2025	Kerosene
Jamaica Bay Peaking	Jamaica Bay Peaking Facility, LLC	Far Rockaway, NY	23 GWh	Jun 2003	Dec 2025	Kerosene
Athens Generating Plant	New Athens Generating Company LLC	Athens, NY	3 TWh	Mar 2003	May 2026	Natural Gas
JLL-One Rockwood Road	JLL-One Rockwood Road	Sleppy Hollow, NY	13 MWh	Dec 2002	Dec 2025	Distillate Fuel Oil
Oswegatchie	Erie Boulevard Hydropower LP	Edwards, NY	7 GWh	Jul 2002	Dec 2025	Water
Edgewood Energy LLC	MPH Cross Island Power	Brentwood, NY	32 GWh	Jun 2002	Dec 2025	Natural Gas
Shoreham Energy LLC	MPH Cross Island Power	Shoreham, NY	1 GWh	Jun 2002	Dec 2024	Kerosene
Bayswater Peaking Facility LLC	Bayswater Peaking Facility LLC	Far Rockaway, NY	24 GWh	May 2002	Dec 2025	Natural Gas
Harbec Energy	Harbec Energy	Ontario, NY	365 MWh	Nov 2001	Nov 2025	Wind : 51.5% Natural Gas : 48.5%
Fenner Wind	CHI Energy Inc	Cazenovia, NY	76 GWh	Sep 2001	Dec 2025	Wind
Vernon Boulevard	New York Power Authority	Long Island City, NY	120 GWh	Jul 2001	Dec 2025	Natural Gas
North 1st	New York Power Authority	Brooklyn, NY	93 GWh	Jul 2001	Dec 2025	Natural Gas
Pouch	New York Power Authority	Staten Island, NY	62 GWh	Jul 2001	Dec 2025	Natural Gas
Joseph J Seymour Power Project	New York Power Authority	Brooklyn, NY	99 GWh	Jun 2001	Dec 2025	Natural Gas
Brentwood	New York Power Authority	Long Island, NY	41 GWh	Jun 2001	Dec 2025	Natural Gas
Hell Gate	New York Power Authority	Bronx, NY	120 GWh	Jun 2001	Dec 2025	Natural Gas
Harlem River Yard	New York Power Authority	Bronx, NY	115 GWh	Jun 2001	Dec 2025	Natural Gas
Model City Energy Facility	Model City Energy LLC	Youngstown, NY	31 GWh	May 2001	Dec 2025	Landfill Gas
Albert Einstein College of Medicine	Albert Einstein College of Medicine	Bronx, NY	11 MWh	Dec 2000	Dec 2024	Distillate Fuel Oil
Madison Windpower LLC	Madison Windpower LLC	Madison, NY	543 MWh	Sep 2000	Sep 2025	Wind
New York Presbyterian Hospital-168th St	New York Presbyterian Hospital- 168th Street	New York, NY	78 MWh	Dec 1999	Dec 2025	Distillate Fuel Oil
NYPH-Queens	NYPH-Queens	Flushing, NY	212 MWh	Dec 1999	Dec 2025	Distillate Fuel Oil
Glen Park Hydroelectric Project	Eagle Creek Renewable Energy, LLC	Watertown, NY	72 GWh	Sep 1999	Dec 2025	Water
Kingsbrook Jewish Medical Center	Kingsbrook Jewish Medical Center	Brooklyn, NY	24 MWh	Jul 1999	Dec 2025	Distillate Fuel Oil
Fordham University	Fordham University	Bronx, NY	6 MWh	Dec 1998	Dec 2025	Distillate Fuel Oil
MM Albany Energy	MM Albany Energy LLC	Albany, NY	7 GWh	Feb 1998	Dec 2025	Landfill Gas
New York Presbyterian Hospital- 68th Street	NY - PRESBYTERIAN HOSPITAL- 68TH ST	New York, NY	54 GWh	Mar 1997	Dec 2025	Natural Gas : 99.8%
Seneca Energy	Seneca Energy II	Seneca Falls, NY	33 GWh	Feb 1996	May 2026	Landfill Gas
Brooklyn Navy Yard Cogeneration	Brooklyn Navy Yard Cogen PLP	Brooklyn, NY	2 TWh	Feb 1996	May 2026	Natural Gas : 97.7% Distillate Fuel Oil : 2.3%
NYC-HH-New Bellevue Hospital	NYC-HH-New Bellevue Hospital	New York, NY	109 MWh	Dec 1995	Dec 2025	Distillate Fuel Oil
Rockland Bakery Inc.	Rockland Bakery Inc.	Nanuet, NY	22 MWh	Dec 1995	Dec 2025	Natural Gas : 93.4% Distillate Fuel Oil : 6.6%
Hudson Falls Hydroelectric Project	Boralex Hydro Operations Inc	South Glens Falls, NY	170 GWh	Oct 1995	Dec 2025	Water
CH Resources Beaver Falls	Lakeside Beaver Falls LLC	Beaver Falls, NY	12 GWh	Mar 1995	Sep 2025	Natural Gas
Stony Brook Cogen Plant	Nissequoque Cogen Partners	Stony Brook, NY	285 GWh	Mar 1995	Dec 2025	Natural Gas
Indeck Corinth Energy Center	Indeck-Corinth Ltd Partnership	Corinth, NY	544 GWh	Jan 1995	Dec 2025	Natural Gas
St. Johns Episcopal Hospital	St. Johns Episcopal Hospital	Far Rockaway, NY	8 MWh	Dec 1994	Dec 2024	Distillate Fuel Oil
Kennedy International Airport Cogen	KIAC Partners	Jamaica, NY	609 GWh	Nov 1994	Dec 2025	Natural Gas
Onondaga County Resource Recovery	Covanta Onondega LP	Jamesville, NY	179 GWh	Oct 1994	May 2026	Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Natural Gas : 2.2%
Sithe Independence Station	Sithe/Independence LLC	Oswego, NY	7 TWh	Jul 1994	May 2026	Natural Gas
South Glens Falls Hydroelectric	Boralex Hydro Operations Inc	South Glens Falls, NY	64 GWh	Jul 1994	Dec 2025	Water
Allegany Cogen	Allegany Generating Station, LLC	Fillmore, NY	37 GWh	May 1994	Dec 2025	Natural Gas
Saranac Facility	Saranac Power Partners LP	Plattsburgh, NY	387 GWh	May 1994	Dec 2025	Natural Gas
Richard M Flynn	New York Power Authority	Holtsville, NY	347 GWh	Apr 1994	Dec 2025	Natural Gas : 93.8% Distillate Fuel Oil : 6.2%
Rensselaer Cogen	Rensselaer Generating LLC	Rensselaer, NY	68 GWh	Mar 1994	Dec 2025	Natural Gas : 99.8%
CH Resources Syracuse	Lakeside Syracuse LLC	Solvay, NY	55 GWh	Dec 1993	Dec 2025	Natural Gas
Indeck Olean Energy Center	Indeck-Olean Ltd Partnership	Olean, NY	80 GWh	Dec 1993	Nov 2025	Natural Gas : 99.8%
NYU Langone Hospital- Brooklyn	NYU Langone Health	New York City, NY	486 MWh	Dec 1993	Dec 2024	Natural Gas : 97.8% Distillate Fuel Oil : 2.2%
Montefieor Medical Center Moses Division	Montefiore Medical Center Moses Division	Bronx, NY	32 GWh	Dec 1993	Dec 2024	Natural Gas : 97.9% Distillate Fuel Oil : 2.1%
Carr Street Generating Station	Carr Street Generating Sta LP	East Syracuse, NY	228 GWh	Jun 1993	Dec 2025	Natural Gas
World Generation X	North American Energy Services	North Tonawanda, NY	404 GWh	Jun 1993	Dec 2025	Natural Gas
NYC-HH - CONEY ISLAND HOSPITAL	NYC-HH Coney Island Hospital	Brooklyn, NY	257 MWh	Jun 1993	Dec 2025	Distillate Fuel Oil
Stillwater Hydro Electric Project	GR Catalyst One, LLC	Stillwater, NY	10 GWh	Mar 1993	Dec 2025	Water
NYU LANGONE HEALTH	NYU LANGONE HEALTH	New York, NY	46 GWh	Sep 1992	Dec 2025	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
Batavia Power Plant	Seneca Power Partners LP	Batavia, NY	18 GWh	Aug 1992	Dec 2025	Natural Gas
Lockport Energy Associates LP	Lockport Energy Associates LP	Lockport, NY	413 GWh	Jun 1992	Dec 2025	Natural Gas
Massena Energy Facility	Power City Partners LP	Massena, NY	44 GWh	Jun 1992	Oct 2025	Natural Gas
Selkirk Cogen	Selkirk Cogen Partners LP	Selkirk, NY	346 GWh	Mar 1992	Oct 2025	Natural Gas
Linden Cogen Plant	EFS Cogen Holdings I LLC	Linden, NJ	6 TWh	Feb 1992	May 2026	Natural Gas : 99.8%
Castleton Energy Center	Fortistar Castleton Power	Castleton, NY	144 GWh	Jan 1992	Dec 2025	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
NYP-Lower Manhattan Hospital	NYP-Lower Manhattan Hospital	New York, NY	20 MWh	Dec 1991	Dec 2025	Distillate Fuel Oil
Huntington Resource Recovery Facility	Huntington Resource Recovery	East Northport, NY	198 GWh	Nov 1991	May 2026	Non-biogenic Municipal Solid Waste : 54.8% Biogenic Municipal Solid Waste : 44.8%
Wheelabrator Hudson Falls	Wheelabrator Environmental Systems	Hudson Falls, NY	51 GWh	Oct 1991	May 2026	Non-biogenic Municipal Solid Waste : 50.6% Biogenic Municipal Solid Waste : 41.4% Natural Gas : 8.0%
Carthage Energy LLC	Carthage Energy LLC	Carthage, NY	7 GWh	Oct 1991	Oct 2025	Natural Gas
Alice Falls Hydro Project	Eagle Creek Renewable Energy, LLC	Keeseville, NY	3 GWh	Oct 1991	Dec 2025	Water
Longfalls Facility	Ampersand Long Falls Hydro, LLC	West Carthage, NY	5 GWh	Sep 1991	Dec 2025	Water
Jarvis (Hinckley)	New York Power Authority	Hinckley, NY	20 GWh	Jun 1991	Dec 2025	Water
Sterling Power Plant	Sterling Power Partners LP	Sherrill, NY	23 GWh	May 1991	Dec 2025	Natural Gas : 99.9%
Indeck Silver Springs Energy Center	Indeck-Energy Serv Silver Spg	Silver Springs, NY	94 GWh	Apr 1991	Dec 2025	Natural Gas
High Acres Gas Recovery	WM Renewable Energy LLC	Fairport, NY	62 GWh	Apr 1991	Dec 2025	Landfill Gas
Bronx Zoo	New York Zoological Society	New York, NY	21 GWh	Dec 1990	Dec 2025	Natural Gas
NewYork-Presbyterian Brooklyn Methodist	NewYork-Presbyterian Brooklyn Methodist Hospital	Brooklyn, NY	29 MWh	Dec 1990	Dec 2025	Distillate Fuel Oil
Phoenix Hydro Project	Eagle Creek Renewable Energy, LLC	Phoenix, NY	8 GWh	Dec 1990	Dec 2025	Water
New York State Dam Hydro	Boralex Hydro Operations Inc	Waterford, NY	42 GWh	Oct 1990	Dec 2025	Water
Lower Saranac Hydroelectric Facility	Central Rivers Power US, LLC	Plattsburgh, NY	19 GWh	Sep 1990	Dec 2025	Water
Sissonville Hydro	Boralex Hydro Operations Inc	Potsdam, NY	2 GWh	Jun 1990	Dec 2025	Water
Lederle Laboratories	Veolia NA - Municipal & Commercial Business	Pearl River, NY	142 GWh	Jun 1990	May 2026	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	442.5 GWh	4
#24	Dominion Energy South Carolina, Inc.	25.3 TWh	83
#13	Duke Energy Carolinas	112.6 TWh	577
#17	Duke Energy Progress East	64.5 TWh	565
#50	Duke Energy Progress West	4.5 TWh	15
#15	ISO New England	111.1 TWh	1,629
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#31	South Carolina Public Service Authority	18.5 TWh	35
#59	Southeastern Power Administration	1.3 TWh	11

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577
#15	ISO New England	111.1 TWh	1,629
#16	Bonneville Power Administration	91.6 TWh	167
#17	Duke Energy Progress East	64.5 TWh	565
#18	PacifiCorp East	60.9 TWh	222