28th largest plant in West Virginia · 4000th nationally
New Martinsville Hannibal Hydro is a hydroelectric power plant in West Virginia with a nameplate capacity of 37.4 MW. It generates roughly 173.4k MWh per year — enough to power about 16,517 average U.S. homes.
Its capacity factor of 53% puts it in the middle range — running steadily but not full-time.
| Plant Name | New Martinsville Hannibal Hydro |
|---|---|
| Operator | New Martinsville Hannibal Hydro |
| City | New Martinsville |
| County | Wetzel County |
| State | West Virginia |
| ZIP | 26155 |
| Coordinates | 39.66720, -80.86420 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| UNT1 | Conventional Hydroelectric | Water | 18.7 MW | Operating | 1988 |
| UNT2 | Conventional Hydroelectric | Water | 18.7 MW | Operating | 1988 |
| NERC Region | RFC |
|---|---|
| Balancing Authority | Pjm Interconnection, Llc |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.