Somersworth Lower Great Dam
82 Buffumsville Road, Somersworth, NH 3878Plant Summary Information
Somersworth Lower Great Dam is ranked #31 out of 32 hydroelectric power plants in New Hampshire in terms of total annual net electricity generation.
Somersworth Lower Great Dam is comprised of 1 generator and generated 483.9 MWh during the 3-month period between September 2022 to December 2022.
| Plant Name | Somersworth Lower Great Dam |
|---|---|
| Utility Name | Green Mountain Power Corp |
| Location | Strafford County, NH |
| Initial Operation Date | July 1985 |
| Last Update | Dec 2022 |
| Annual Generation | 1.8 GWh |
| Annual Consumption | 7.1 k MMBtu |
| Ranked #9,724 out of 11,249 Power Plants Nationwide | |
| Ranked #1,281 out of 1,354 Water Power Plants Nationwide | |
| Ranked #52 out of 55 New Hampshire Power Plants | |
| Ranked #31 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 2022) |
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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 Dec 2022 |
| Initial Operation Date | July 1985 |
| Annual Generation | 1.8 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 |
|---|---|---|---|
| #1271 | White River (WI) | Ashland, WI | 2.1 GWh |
| #1272 | Burney Creek | Burney, CA | 2.0 GWh |
| #1273 | Wallowa Falls | Joseph, OR | 2.0 GWh |
| #1274 | Pine View Dam | Ogden, UT | 2.0 GWh |
| #1275 | Cosgrove Intake and Power Station | Clinton, MA | 2.0 GWh |
| #1276 | Ford Hydro LP | Weippe, ID | 2.0 GWh |
| #1277 | Great Falls (VT) | Lyndon, VT | 2.0 GWh |
| #1278 | Pleasant Valley Hydro | Bishop, CA | 2.0 GWh |
| #1279 | Santa Ana 3 | Highlands, CA | 1.9 GWh |
| #1280 | Hydro Plant No 3 | east of Ephraim, UT | 1.9 GWh |
| #1282 | Danbury Dam | Danbury, WI | 1.7 GWh |
| #1283 | Bear Creek | Shingletown, CA | 1.7 GWh |
| #1284 | Salida | Salida, CO | 1.7 GWh |
| #1285 | Halifax | Halifax, VA | 1.6 GWh |
| #1286 | East Portal Generator | Chatsworth, CA | 1.6 GWh |
| #1287 | Manti Upper | Manti, UT | 1.5 GWh |
| #1288 | Cherokee Falls | Blacksburg, SC | 1.5 GWh |
| #1289 | Walden | Walden, NY | 1.5 GWh |
| #1290 | Normanskill Hydro Project | Guilderland, NY | 1.4 GWh |
| #1291 | Ruxton Park | Manitou Spring, CO | 1.4 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 | 4.7 GWh | 20.5 mi |
| Bashaw Solar CSG 1, LLC | Newbury, MA | 3.3 GWh | 32 mi |
| Hampton Facility | Hampton, NH | 30.6 GWh | 21.6 mi |
| Hunt Road Solar | Amesbury, MA | 8.2 GWh | 29.7 mi |
| Kearsarge Amesbury Hybrid | Amesbury, MA | 5.9 GWh | 29 mi |
| Merrimac Solar | Merrimac, MA | 2.5 GWh | 29.9 mi |
| Milton Hydro | Milton, NH | 7.1 GWh | 12.8 mi |
| Newington | Newington, NH | 824.8 GWh | 10.3 mi |
| Newington | Newington, NH | 107.3 GWh | 10.7 mi |
| Pembroke Hydro | Suncook, NH | 9.4 GWh | 32 mi |
| Rollinsford | Rollinsford, NH | 5.3 GWh | 1.6 mi |
| Salmon Falls | South Berwick, ME | 1.1 GWh | 2.2 mi |
| Sanford Solar | Sanford, ME | 95.4 GWh | 14.5 mi |
| Schiller | Portsmouth, NH | 587.0 MWh | 11 mi |
| Seabrook | Seabrook, NH | 10.5 TWh | 24.3 mi |
| Skelton | Dayton, ME | 117.2 GWh | 26.2 mi |
| True North | Salisbury, MA | 7.1 GWh | 28 mi |
| Turnkey Landfill Gas Recovery | Rochester, NH | 46.9 GWh | 6.4 mi |
| UNH 7.9 MW Plant | Durham, NH | 56.8 GWh | 9.2 mi |
| West Buxton | Buxton, ME | 23.9 GWh | 31.1 mi |