Errol Hydroelectric Project
499 Hydro Drive, Errol, NH 3579Plant Summary Information
Errol Hydroelectric Project is ranked #32 out of 57 power plants in New Hampshire in terms of total annual net electricity generation.
Errol Hydroelectric Project is comprised of 1 generator and generated 2.7 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Errol Hydroelectric Project |
|---|---|
| Utility Name | Errol Hydroelectric Co LLC |
| Location | Coos County, NH |
| Initial Operation Date | November 1986 |
| Last Update | Dec 2025 |
| Annual Generation | 13.6 GWh |
| Annual Consumption | 50.9 k MMBtu |
| Ranked #5,805 out of 13,081 Power Plants Nationwide | |
| Ranked #806 out of 1,311 Water Power Plants Nationwide | |
| Ranked #32 out of 57 New Hampshire Power Plants | |
| Ranked #13 out of 32 New Hampshire Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for Errol Hydroelectric Project
Monthly Plant Fuel Consumption for Errol Hydroelectric Project
Errol Hydroelectric Project Details
| Summary Information | |
|---|---|
| Plant Name | Errol Hydroelectric Project (10570) |
| Plant Address | 499 Hydro Drive, Errol, NH 3579 |
| Utility | Errol Hydroelectric Co LLC (23037) |
| Latitude, Longitude | 44.78665, -71.12433 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | November 1986 |
| Annual Generation | 13.6 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 | 85-659-000 |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | NPCC |
| Balancing Authority | ISO New England Inc. (ISNE) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Androscoggin River |
| Ash Impoundment | |
| Transmission / Distribution Owner | Public Service Co of NH (15472) NH |
| Grid Voltage | 115.00 kV |
| Energy Storage | No |
Generator 1 Details Operating November 1986
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 3 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 3 MW |
| Winter Capacity | 3 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | November 1986 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 1H |
| Multiple Fuels | No |
Errol Hydroelectric Project 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 |
|---|---|---|---|
| #796 | Clark Falls | Milton, VT | 14.1 GWh |
| #797 | Waterport | Waterport, NY | 14.0 GWh |
| #798 | Goat Lake Hydro | Skagway, AK | 14.0 GWh |
| #799 | Hastings City Hydroelectric | Hastings, MN | 13.9 GWh |
| #800 | Purple Lake | Metlakatla, AK | 13.9 GWh |
| #801 | Alexander | Merrill, WI | 13.9 GWh |
| #802 | Rio | Glen Spey, NY | 13.8 GWh |
| #803 | Petersburg | Petersburg, AK | 14.4 GWh |
| #804 | Effley | Croghan, NY | 13.8 GWh |
| #805 | Hoist | Negaunee, MI | 13.7 GWh |
| #807 | Mio | Mio, MI | 13.6 GWh |
| #808 | White River Lock and Dam 1 | Batesville, AR | 13.5 GWh |
| #809 | White River Lock and Dam 2 | Locust Grove, AR | 13.5 GWh |
| #810 | Basalt | Aspen, CO | 13.5 GWh |
| #811 | Neal Shoals | Union, SC | 13.4 GWh |
| #812 | Point A | Andalusia, AL | 13.4 GWh |
| #813 | Pilot Knob | Winterhaven, CA | 13.4 GWh |
| #814 | Corona | Corona, CA | 13.3 GWh |
| #815 | Kimberly Mill | Appleton, WI | 13.3 GWh |
| #816 | Apple River | Somerset, WI | 13.2 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Errol Hydroelectric Project.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Arctaris Saddleback Solar | Dallas Plantation, ME | 7.4 GWh | 31.3 mi |
| Aziscohos Hydroelectric Project | Wilson Mills, ME | 29.8 GWh | 12.5 mi |
| Berlin Gorham | Berlin, NH | 101.1 GWh | 27.6 mi |
| Burgess BioPower | Berlin, NH | 390.2 GWh | 21.9 mi |
| Canaan | Canaan, VT | 6.3 GWh | 24.7 mi |
| Gorham | Gorham, NH | 8.4 GWh | 26.4 mi |
| Granite Reliable Power | Dummer, NH | 191.6 GWh | 10 mi |
| GSPP Gilman, LLC | Lunenburg, VT | 3.0 GWh | 38.8 mi |
| Jericho Power | Berlin, NH | 22.5 GWh | 22.6 mi |
| Lost Nation | Groveton, NH | 422.0 MWh | 22.5 mi |
| Mainely Solar (Wyman Hill Solar LLC) | Rumford, ME | 5.8 GWh | 35.1 mi |
| NE Renewable Whitefield, LLC | Whitefield, NH | 59.3 GWh | 36.1 mi |
| Pontook Hydro Facility | Dummer, NH | 50.9 GWh | 12.2 mi |
| Record Hill Wind | Roxbury, ME | 110.2 GWh | 26.6 mi |
| RoxWind | Roxbury, ME | 44.1 GWh | 27.6 mi |
| Rumford Cogeneration | Rumford, ME | 399.7 GWh | 32.9 mi |
| Rumford Falls Hydro Facility | Rumford, ME | 212.1 GWh | 29.4 mi |
| Rumford Power LLC | Rumford, ME | 792.6 GWh | 34.5 mi |
| Smith (NH) | Berlin, NH | 87.5 GWh | 22.1 mi |
| Spruce Mountain WInd | Bryant Pond, ME | 52.6 GWh | 37.8 mi |