Port Leyden Hydroelectric Project

E. Main St., Port Leyden, NY 13433

Plant Summary Information

Port Leyden Hydroelectric Project is ranked #129 out of 148 hydroelectric power plants in New York in terms of total annual net electricity generation.

Port Leyden Hydroelectric Project is comprised of 2 generators and generated 932.0 MWh during the 3-month period between September 2025 to December 2025.

Plant Name	Port Leyden Hydroelectric Project
Utility Name	Lyonsdale Hydroelectric Co., Inc.
Location	Lewis County, NY
Initial Operation Date	December 1985
Last Update	Dec 2025
Annual Generation	3.9 GWh
Annual Consumption	14.5 k MMBtu
Ranked #8,989 out of 13,081 Power Plants Nationwide
Ranked #1,135 out of 1,311 Water Power Plants Nationwide
Ranked #662 out of 1,045 New York Power Plants
Ranked #129 out of 148 New York Water Power Plants
Fuel Types	Water
Previous Operator	Empire Hydro Partners (2013 to 2023) Lyonsdale Hydroelectric Co., Inc. (2024 to 2025)

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Monthly Net Generation for Port Leyden Hydroelectric Project

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Monthly Plant Fuel Consumption for Port Leyden Hydroelectric Project

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Port Leyden Hydroelectric Project Details

Summary Information
Plant Name	Port Leyden Hydroelectric Project (10817)
Plant Address	E. Main St., Port Leyden, NY 13433
Utility	Lyonsdale Hydroelectric Co., Inc. (66499)
Latitude, Longitude	43.58361, -75.33917
Generation Dates on File	Jan 2001 to Dec 2025
Initial Operation Date	December 1985
Annual Generation	3.9 GWh
Fuel Types	Water

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	Yes
FERC Small Power Producer Docket Number	84-19-000
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Non-Regulated
NERC Region	NPCC
Balancing Authority	New York Independent System Operator (NYIS)
NAICS Code	Utilities (22)
Sector	IPP Non-CHP (2)
Water Source	Black River
Ash Impoundment	No
Transmission / Distribution Owner	Niagara Mohawk Power Corp. (13573) NY
Grid Voltage	23.00 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Generator GEN1 Details Operating December 1985

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.5 MW
Nameplate Power Factor	0.8
Summer Capacity	0.5 MW
Winter Capacity	0.5 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	December 1985
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No

Generator GEN2 Details Operating December 1985

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.5 MW
Nameplate Power Factor	0.8
Summer Capacity	0.5 MW
Winter Capacity	0.5 MW
Minimum Load	0.5 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	December 1985
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No

Port Leyden Hydroelectric Project Plant Owners

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Water.

Rank	Plant Name	Plant Location	Annual Generation
#1125	Stairs	Salt Lake City, UT	4.1 GWh
#1126	Gardiner	Gardiner, ME	4.1 GWh
#1127	Carver Falls	Hampton, NY	4.1 GWh
#1128	Luray Hydro Station	Luray, VA	4.1 GWh
#1129	Flambeau Crowley Rapids Project	Park Falls, WI	4.0 GWh
#1130	Upper Barker	Auburn, ME	4.0 GWh
#1131	Texon Hydroelectric Project	Russell, MA	3.9 GWh
#1132	Causey	South Fork, UT	3.9 GWh
#1133	Cascade Dam (MI)	Grand Rapids, MI	3.9 GWh
#1134	Constantine	Constantine, MI	3.9 GWh
#1136	Marshfield 6	Marshfield, VT	3.9 GWh
#1137	Theresa Plant	Theresa, NY	3.9 GWh
#1138	Ponderosa Bailey Creek	Manton, CA	3.9 GWh
#1139	Lacomb Irrigation District	Lebanon, OR	3.8 GWh
#1140	Pelzer Upper	Petzer, SC	3.8 GWh
#1141	Pelzer Lower	Williamston, SC	3.8 GWh
#1142	Barker Lower	Auburn, ME	3.8 GWh
#1143	Scotland Dam	Windham, CT	3.8 GWh
#1144	Scott Flat	Nevada City, CA	3.8 GWh
#1145	Messalonskee 3	Oakland, ME	3.8 GWh

Nearby Power Plants

Below are closest 20 power plants surrounding Port Leyden Hydroelectric Project.

Plant Name	Plant Location	Annual Generation	Distance
Black River Hydro Associates	Port Layden, NY	16.5 GWh	0.6 mi
CH Resources Beaver Falls	Beaver Falls, NY	11.7 GWh	21.4 mi
Chambers 3 - Lewis County	Lowville, NY	2.5 GWh	15.8 mi
Gouldtown	Lyonsdale, NY	5.7 GWh	2 mi
Jarvis (Hinckley)	Hinckley, NY	19.7 GWh	22 mi
Kosterville	Lyonsdale, NY	1.8 GWh	2.1 mi
Lower Beaver Falls Project	Beaver Falls, NY	3.2 GWh	21.3 mi
Lyons Falls Hydroelectric	Lyons Falls, NY	27.1 GWh	2.6 mi
Lyonsdale Associates	Lyons Falls, NY	10.0 GWh	3 mi
Maple Ridge Wind Farm	Lowville, NY	612.3 GWh	18.3 mi
Martinsburg CSG LLC	Lowville, NY	3.9 GWh	11.9 mi
Moose River	Lyons Falls, NY	37.1 GWh	1.9 mi
Moshier	Lowville, NY	35.1 GWh	22.3 mi
Number Three Wind Project	Lowville, NY	277.6 GWh	21.1 mi
Oneida Herkimer	Boonville, NY	25.3 GWh	9.3 mi
Prospect	Prospect, NY	55.2 GWh	22.3 mi
Roaring Brook, LLC	Lowville, NY	191.4 GWh	16.4 mi
Source Power NY III - Remsen	Remsen, NY	4.7 GWh	19 mi
Trenton Falls	Barneveld, NY	118.0 GWh	23.2 mi
Upper Beaver Falls Project	Beaver Falls, NY	9.5 GWh	21.2 mi