Somersworth Lower Great Dam
82 Buffumsville Road, Somersworth, NH 3878Plant Summary Information
Somersworth Lower Great Dam is ranked #48 out of 56 power plants in New Hampshire in terms of total annual net electricity generation.
Somersworth Lower Great Dam is comprised of 1 generator and generated 636.0 MWh during the 3-month period between March 2024 to June 2024.
| Plant Name | Somersworth Lower Great Dam |
|---|---|
| Utility Name | Green Mountain Power Corp |
| Location | Strafford County, NH |
| Initial Operation Date | July 1985 |
| Last Update | Jun 2024 |
| Annual Generation | 3.3 GWh |
| Annual Consumption | 12.3 k MMBtu |
| Ranked #9,241 out of 12,539 Power Plants Nationwide | |
| Ranked #1,222 out of 1,332 Water Power Plants Nationwide | |
| Ranked #48 out of 56 New Hampshire Power Plants | |
| Ranked #27 out of 32 New Hampshire Water Power Plants | |
| Fuel Types | Water |
| Previous Operator |
Somersworth Hydro Company, Inc. (2013 to 2017) Green Mountain Power Corp (2018 to 2024) |
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Monthly Net Generation for Somersworth Lower Great Dam
Somersworth Lower Great Dam Details
| Summary Information | |
|---|---|
| Plant Name | Somersworth Lower Great Dam (50704) |
| Plant Address | 82 Buffumsville Road, Somersworth, NH 3878 |
| Utility | Green Mountain Power Corp (7601) |
| Latitude, Longitude | 43.25111, -70.84083 |
| Generation Dates on File | Jan 2001 to Jun 2024 |
| Initial Operation Date | July 1985 |
| Annual Generation | 3.3 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 | 01-21-000 |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | NPCC |
| Balancing Authority | ISO New England Inc. (ISNE) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Salmon Falls River |
| Ash Impoundment | |
| Transmission / Distribution Owner | Public Service Co of NH (15472) NH |
| Grid Voltage | 41.60 kV |
| Energy Storage | No |
Generator GEN1 Details Operating July 1985
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 1.3 MW |
| Nameplate Power Factor | 1 |
| Summer Capacity | 1.2 MW |
| Winter Capacity | 1.2 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | July 1985 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | 10M |
Somersworth Lower Great Dam 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 |
|---|---|---|---|
| #1212 | GeoBon II | Shoshone, ID | 3.5 GWh |
| #1213 | Constantine | Constantine, MI | 3.5 GWh |
| #1214 | Pittsfield Hydro | Burnham, ME | 3.5 GWh |
| #1215 | Lochmere Hydroelectric Plant | Tilton, NH | 3.5 GWh |
| #1216 | Gantt | Andalusia, AL | 3.4 GWh |
| #1217 | Deadwood Creek | Dobbins, CA | 3.4 GWh |
| #1218 | Avalon Hydropower | Mayodan, NC | 3.4 GWh |
| #1219 | Messalonskee 5 | Waterville, ME | 3.3 GWh |
| #1220 | Flambeau Crowley Rapids Project | Park Falls, WI | 3.3 GWh |
| #1221 | Hoot Lake | Fergus Falls, MN | 3.3 GWh |
| #1223 | Boltonville Hydro Associates | Boltonville, VT | 3.3 GWh |
| #1224 | Stairs | Salt Lake City, UT | 3.2 GWh |
| #1225 | Tenth Street | Norwich, CT | 3.2 GWh |
| #1226 | Pumpkin Hill | Lowell, ME | 3.2 GWh |
| #1227 | Newhalen | Iliamna, AK | 3.2 GWh |
| #1228 | Lake Creek Dam | Heber City, UT | 3.2 GWh |
| #1229 | Lake Lure | Lake Lure, NC | 3.2 GWh |
| #1230 | Newport Hydro Station | Newport, VA | 3.1 GWh |
| #1231 | Waterloo Hydroelectric Project | Waterloo, NY | 3.1 GWh |
| #1232 | Volta 2 | Manton, CA | 3.1 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Somersworth Lower Great Dam.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Acton | Acton, ME | 4.6 GWh | 20.5 mi |
| Cataract Hydro | Saco, ME | 28.5 GWh | 26 mi |
| Hampton Facility | Hampton, NH | 23.9 GWh | 21.6 mi |
| Lebanon CSG LLC | Lebanon, ME | 64.0 MWh | 10 mi |
| Milton Hydro | Milton, NH | 5.6 GWh | 12.8 mi |
| Newington | Newington, NH | 95.2 GWh | 10.7 mi |
| Newington Energy Center | Newington, NH | 1.7 TWh | 10.3 mi |
| Quarry | North Berwick, ME | 10.4 GWh | 8.1 mi |
| Rollinsford | Rollinsford, NH | 2.3 GWh | 1.6 mi |
| Salmon Falls | South Berwick, ME | 2.6 GWh | 2.2 mi |
| Sanford -NY | Sanford, ME | 7.1 GWh | 13.4 mi |
| Sanford CGA | Sanford, ME | 230.0 MWh | 14 mi |
| Sanford Solar | Sanford, ME | 88.0 GWh | 14.5 mi |
| Schiller | Portsmouth, NH | 590.0 MWh | 11 mi |
| Seabrook | Seabrook, NH | 9.7 TWh | 24.3 mi |
| Skelton | Dayton, ME | 57.6 GWh | 26.2 mi |
| Turnkey Landfill Gas Recovery | Rochester, NH | 44.2 GWh | 6.4 mi |
| UNH 7.9 MW Plant | Durham, NH | 55.2 GWh | 9.2 mi |
| Waterboro | East Waterboro, ME | 3.3 GWh | 24.3 mi |
| Wells (ME) | Wells, ME | 6.4 GWh | 11.9 mi |