1st largest plant in Indiana · 10th nationally
Gibson is a coal power plant in Indiana with a nameplate capacity of 3,340 MW. It generates roughly 8.0M MWh per year — enough to power about 759,134 average U.S. homes.
Its capacity factor of 27% reflects intermittent or peaking operation. At 2269 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 (3,340 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 | Gibson |
|---|---|
| Operator | Duke Energy Indiana, Llc |
| City | Owensville |
| County | Gibson County |
| State | Indiana |
| ZIP | 47665 |
| Coordinates | 38.37222, -87.76583 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | Bituminous Coal | 668 MW | Operating | 1976 |
| 2 | Conventional Steam Coal | Bituminous Coal | 668 MW | Operating | 1975 |
| 3 | Conventional Steam Coal | Bituminous Coal | 668 MW | Operating | 1978 |
| 4 | Conventional Steam Coal | Bituminous Coal | 668 MW | Operating | 1979 |
| 5 | Conventional Steam Coal | Bituminous Coal | 668 MW | Operating | 1982 |
| Owner | Location | Share |
|---|---|---|
| Duke Energy Indiana, Llc | Plainfield, IN | 5005.0% |
| Wabash Valley Power Assn, Inc | Indianapolis, IN | 2500.0% |
| Indiana Municipal Power Agency | Carmel, IN | 2495.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 9.0M metric tons |
|---|---|
| SO₂ | 4.5k metric tons |
| NOₓ | 3.6k metric tons |
| CO₂ Rate | 2269 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 | Midcontinent Independent Transmission System Operator, Inc.. |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.