80th largest plant in Georgia · 3139th nationally
Port Wentworth Mill is a biomass power plant in Georgia with a nameplate capacity of 72.3 MW. It generates roughly 433.2k MWh per year — enough to power about 41,257 average U.S. homes.
Its capacity factor of 68% puts it in the middle range — running steadily but not full-time. At 283 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (72.3 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 | Port Wentworth Mill |
|---|---|
| Operator | International Paper Port Wentworth Mill |
| City | Port Wentworth |
| County | Chatham County |
| State | Georgia |
| ZIP | 31407 |
| Coordinates | 32.15610, -81.15860 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN4 | Wood/Wood Waste Biomass | Black Liquor | 47.3 MW | Operating | 1991 |
| GEN5 | Wood/Wood Waste Biomass | Black Liquor | 25.0 MW | Operating | 2004 |
| CO₂ | 61.3k metric tons |
|---|---|
| SO₂ | 1.1k metric tons |
| NOₓ | 306 metric tons |
| CO₂ Rate | 283 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 | SERC |
|---|---|
| Balancing Authority | Southern Company Services, Inc. - Trans |
Biomass plants burn wood, agricultural waste, or methane from landfills to generate steam and electricity. They are considered carbon-neutral over long timescales when fuel is sustainably sourced, but they produce particulate emissions similar to coal.