148th largest plant in South Carolina · 10231st nationally
Substation 20 Plant is a natural gas power plant in South Carolina with a nameplate capacity of 2.0 MW. It generates roughly 122 MWh per year — enough to power about 11 average U.S. homes.
Its capacity factor of 1% reflects intermittent or peaking operation. At 2192 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
| Plant Name | Substation 20 Plant |
|---|---|
| Operator | City Of Orangeburg - (Sc) |
| City | Orangeburg |
| County | Orangeburg County |
| State | South Carolina |
| ZIP | 29115 |
| Coordinates | 33.44018, -80.84170 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | Natural Gas | 2.0 MW | Operating | 2014 |
| CO₂ | 134 metric tons |
|---|---|
| CO₂ Rate | 2192 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 | Dominion Energy South Carolina |
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.