117th largest plant in South Carolina · 6865th nationally
Barnwell Solar is a solar power plant in South Carolina with a nameplate capacity of 5.4 MW. It generates roughly 9.5k MWh per year — enough to power about 906 average U.S. homes.
Its capacity factor of 20% reflects intermittent or peaking operation.
| Plant Name | Barnwell Solar |
|---|---|
| Operator | Barnwell Solar, Llc |
| City | Barnwell |
| County | Barnwell County |
| State | South Carolina |
| ZIP | 29812 |
| Coordinates | 33.23700, -81.35100 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| PGRB1 | Solar Photovoltaic | Solar | 5.4 MW | Operating | 2017 |
| NERC Region | SERC |
|---|---|
| Balancing Authority | Dominion Energy South Carolina |
Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.