2nd largest plant in Ohio · 69th nationally
Guernsey Power Station is a natural gas power plant in Ohio with a nameplate capacity of 2,055 MW. It generates roughly 8.2M MWh per year — enough to power about 776,664 average U.S. homes.
Its capacity factor of 45% puts it in the middle range — running steadily but not full-time. At 861 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 (2,055 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 | Guernsey Power Station |
|---|---|
| Operator | Guernsey Power Station Llc |
| City | Byesville |
| County | Guernsey County |
| State | Ohio |
| ZIP | 43723 |
| Coordinates | 39.93640, -81.53540 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GPS1 | Natural Gas Fired Combined Cycle | Natural Gas | 685 MW | Operating | 2023 |
| GPS2 | Natural Gas Fired Combined Cycle | Natural Gas | 685 MW | Operating | 2023 |
| GPS3 | Natural Gas Fired Combined Cycle | Natural Gas | 685 MW | Operating | 2023 |
| CO₂ | 3.5M metric tons |
|---|---|
| SO₂ | 18 metric tons |
| NOₓ | 244 metric tons |
| CO₂ Rate | 861 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.