4th largest plant in Ohio · 169th nationally
Hanging Rock Energy Facility is a natural gas power plant in Ohio with a nameplate capacity of 1,430 MW. It generates roughly 10.5M MWh per year — enough to power about 1,003,155 average U.S. homes.
Its capacity factor of 84% means it runs nearly around-the-clock as baseload generation. At 869 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (1,430 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Hanging Rock Energy Facility |
|---|---|
| Operator | Dynegy Hanging Rock Energy Facility |
| City | Ironton |
| County | Lawrence County |
| State | Ohio |
| ZIP | 45638 |
| Coordinates | 38.57310, -82.78330 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1ST | Natural Gas Fired Combined Cycle | Natural Gas | 317 MW | Operating | 2003 |
| 2ST | Natural Gas Fired Combined Cycle | Natural Gas | 317 MW | Operating | 2003 |
| 1GT1 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2003 |
| 1GT2 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2003 |
| 2GT1 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2003 |
| 2GT2 | Natural Gas Fired Combined Cycle | Natural Gas | 199 MW | Operating | 2003 |
| CO₂ | 4.6M metric tons |
|---|---|
| SO₂ | 23 metric tons |
| NOₓ | 285 metric tons |
| CO₂ Rate | 869 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | RFC |
|---|---|
| Balancing Authority | Pjm Interconnection, Llc |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.