Diana Hydroelectric
Mill Street, Harrisville, NY 13648Plant Summary Information
Diana Hydroelectric is ranked #121 out of 148 hydroelectric power plants in New York in terms of total annual net electricity generation.
Diana Hydroelectric is comprised of 1 generator and generated 720.0 MWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Diana Hydroelectric |
|---|---|
| Utility Name | EONY Generation Limited |
| Location | Lewis County, NY |
| Initial Operation Date | July 1985 |
| Last Update | Dec 2025 |
| Annual Generation | 4.9 GWh |
| Annual Consumption | 19.6 k MMBtu |
| Ranked #8,268 out of 13,081 Power Plants Nationwide | |
| Ranked #1,090 out of 1,311 Water Power Plants Nationwide | |
| Ranked #594 out of 1,045 New York Power Plants | |
| Ranked #121 out of 148 New York Water Power Plants | |
| Fuel Types | Water |
| Previous Operator |
FortisUS Energy Corp (2013 to 2014) EONY Generation Limited (2015 to 2025) |
Map of Diana Hydroelectric
Full Screen MapRegister Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Diana Hydroelectric.
Monthly Net Generation for Diana Hydroelectric
Monthly Plant Fuel Consumption for Diana Hydroelectric
Diana Hydroelectric Details
| Summary Information | |
|---|---|
| Plant Name | Diana Hydroelectric (10237) |
| Plant Address | Mill Street, Harrisville, NY 13648 |
| Utility | EONY Generation Limited (60023) |
| Latitude, Longitude | 44.15194, -75.32173 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | July 1985 |
| Annual Generation | 4.9 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 | 82-115-000, 001, 002, 003 |
| 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 | West Branch Oswegatchie River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Niagara Mohawk Power Corp. (13573) NY |
| Grid Voltage | 13.20 kV |
| Energy Storage | No |
Generator GEN1 Details Operating July 1985
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.8 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 1.7 MW |
| Winter Capacity | 1.7 MW |
| Minimum Load | 0.4 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 1985 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Water |
| Time From Cold Shutdown To Full Load | 1H |
Diana Hydroelectric Plant Owners
| Owner Name | Address | 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 |
|---|---|---|---|
| #1080 | Chester Lake | Metlakatla, AK | 5.2 GWh |
| #1081 | Trego | Hayward, WI | 5.1 GWh |
| #1082 | Chemical | Holyoke, MA | 5.1 GWh |
| #1083 | 45 Mile Hydroelectric Project | Culver, OR | 5.0 GWh |
| #1084 | Fulton Hydro | Fulton, NY | 5.0 GWh |
| #1085 | Gaston Shoals | Blacksburg, SC | 5.0 GWh |
| #1086 | Morrisville | Morrisville, VT | 5.0 GWh |
| #1087 | Brigham City | Brigham, UT | 5.0 GWh |
| #1088 | Radford | Radford, VA | 5.0 GWh |
| #1089 | Phoenix | Sonora, CA | 4.9 GWh |
| #1091 | High Falls | High Falls, NY | 4.9 GWh |
| #1092 | Cataract (MI) | Gwinn, MI | 4.9 GWh |
| #1093 | Whitewater Hydro Plant | California, CA | 4.9 GWh |
| #1094 | Stillwater Reservoir Hydro | Webb, NY | 4.9 GWh |
| #1095 | Wanship | Wanship, UT | 4.9 GWh |
| #1096 | Dunn Paper | Gouverneur, NY | 4.8 GWh |
| #1097 | Spillway | Pineville, SC | 4.8 GWh |
| #1098 | Upper Sterling | Rock Falls, IL | 4.8 GWh |
| #1099 | Kleber | Onaway, MI | 4.8 GWh |
| #1100 | Clam River Dam | Danbury, WI | 4.8 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Diana Hydroelectric.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| ASA Gouverneur NY Solar II LLC | Gouverneur, NY | 4.4 GWh | 15.3 mi |
| Belfort | Croghan, NY | 10.4 GWh | 15.5 mi |
| Browns Falls | Oswegatchie, NY | 49.2 GWh | 13.6 mi |
| Dunn Paper | Gouverneur, NY | 4.8 GWh | 15.6 mi |
| Effley | Croghan, NY | 13.8 GWh | 16 mi |
| Elmer | Croghan, NY | 10.0 GWh | 15.6 mi |
| Flat Rock | Fine, NY | 14.6 GWh | 13.2 mi |
| GSPP 126 Little Bow Rd N, LLC | Gouverneur, NY | 6.7 GWh | 15.6 mi |
| GSPP 126 Little Bow Rd S, LLC | Gouverneur, NY | 6.5 GWh | 15.6 mi |
| Hailesboro 4 Plant | Hailesboro, NY | 9.8 GWh | 12.6 mi |
| Hampshire Paper | Gouverneur, NY | 13.1 GWh | 10.2 mi |
| High Falls - Croghan NY | Croghan, NY | 25.0 GWh | 15.9 mi |
| Hollow Dam Power Partnership | Gouveneur, NY | 1.0 GWh | 10 mi |
| IRE Solar I, LLC | Gouverneur, NY | 1.5 GWh | 13.5 mi |
| Oswegatchie | Edwards, NY | 7.0 GWh | 10.2 mi |
| Rock Island Road Solar Community Solar | Gouvernour, NY | 5.9 GWh | 16.5 mi |
| Soft Maple | Croghan, NY | 31.6 GWh | 16.5 mi |
| South Edwards | Fine, NY | 19.0 GWh | 10.1 mi |
| Talcville | Edwards, NY | 616.0 MWh | 10.8 mi |
| Taylorville | Croghan, NY | 20.7 GWh | 15.5 mi |