89th largest plant in Pennsylvania · 3479th nationally
Johnsonburg Mill is a natural gas power plant in Pennsylvania with a nameplate capacity of 54.0 MW. It generates roughly 65.1k MWh per year — enough to power about 6,200 average U.S. homes.
Its capacity factor of 14% reflects intermittent or peaking operation.
Ghost bars are each month's theoretical maximum (54.0 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 | Johnsonburg Mill |
|---|---|
| Operator | Domtar Llc |
| City | Johnsonburg |
| County | Elk County |
| State | Pennsylvania |
| ZIP | 15845 |
| Coordinates | 41.49147, -78.67576 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| PT1 | Wood/Wood Waste Biomass | Black Liquor | 54.0 MW | Operating | 1993 |
| SO₂ | 72 metric tons |
|---|---|
| NOₓ | 36 metric tons |
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.