3rd largest plant in Indiana · 88th nationally
Aes Petersburg is a coal power plant in Indiana with a nameplate capacity of 1,873 MW. It generates roughly 4.7M MWh per year — enough to power about 443,679 average U.S. homes.
Its capacity factor of 28% reflects intermittent or peaking operation. At 2290 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 (1,873 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 | Aes Petersburg |
|---|---|
| Operator | Aes Indiana |
| City | Petersburg |
| County | Pike County |
| State | Indiana |
| ZIP | 47567 |
| Coordinates | 38.52810, -87.25250 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 4 | Conventional Steam Coal | Bituminous Coal | 671 MW | Operating | 1986 |
| ST3 | Conventional Steam Coal | Bituminous Coal | 671 MW | Operating | 1977 |
| ST2 | Conventional Steam Coal | Bituminous Coal | 523 MW | Retired | 1969 |
| ST1 | Conventional Steam Coal | Bituminous Coal | 282 MW | Retired | 1967 |
| IC1 | Petroleum Liquids | Distillate Oil | 2.7 MW | Operating | 1967 |
| IC2 | Petroleum Liquids | Distillate Oil | 2.7 MW | Operating | 1967 |
| IC3 | Petroleum Liquids | Distillate Oil | 2.7 MW | Operating | 1967 |
| CO₂ | 5.3M metric tons |
|---|---|
| SO₂ | 3.7k metric tons |
| NOₓ | 3.6k metric tons |
| CO₂ Rate | 2290 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.