AES Petersburg
AES Petersburg is a coal plant in Pike County, Indiana, operated by AES Indiana. It ranks third by nameplate capacity among Indiana’s 221 power plants. Retired units here add up to 805 MW across 2 units, taken out of service between 2021 and 2023. Its biggest unit, rated at 671 MW, is the second-largest single generator in Indiana.
Nameplate capacity, 2025
1,350 MW
1,066 MW net summer capacity
5 operable units
- Coal steam1,342 MW99%
- Oil-fired8.1 MW0.6%
Unit by unit, 1967 to 2025
operating in 2025retiredbar height follows unit size
Unit IC1 Oil-fired, 2.7 MW, 1967
Unit IC2 Oil-fired, 2.7 MW, 1967
Unit IC3 Oil-fired, 2.7 MW, 1967
Unit ST1 Coal steam, 282 MW, 1967–2021
Unit ST2 Coal steam, 523 MW, 1969–2023
Unit ST3 Coal steam, 671 MW, 1977
Unit 4 Coal steam, 671 MW, 1986
Among Indiana’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Gibson3,340 MW
- 2Rockport2,600 MW
- 3AES Petersburgthis plant
- 4Clifty Creek1,304 MW
- 5Lawrenceburg Power, LLC1,232 MW
Other rankings
- All US power plants
- 172nd of 14,286
- US coal plants
- 58th of 195
- Coal plants in Indiana
- 3rd of 11
- Plants in the MISO (Midcontinent) balancing area
- 25th of 2,383
- Plants run by AES Indiana
- 1st of 5
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| IC1 | Oil-fired | 2.7 MW | 3 MW | 1967 | Operating |
| IC2 | Oil-fired | 2.7 MW | 3 MW | 1967 | Operating |
| IC3 | Oil-fired | 2.7 MW | 3 MW | 1967 | Operating |
| ST3 | Coal steam | 671 MW | 528 MW | 1977 | Operating |
| 4 | Coal steam | 671 MW | 530 MW | 1986 | Operating |
Retired units
| Unit | Technology | Nameplate | In service |
|---|---|---|---|
| ST1 | Coal steam | 282 MW | 1967–2021 |
| ST2 | Coal steam | 523 MW | 1969–2023 |
Grid and site
- Balancing area
- MISO (Midcontinent)
- Reliability region
- ReliabilityFirst
- Highest grid connection voltage
- 345 kV
- Water source
- White River
- Nearest town on record
- Petersburg
- Operator type
- Utility
- Coordinates
- 38.528°N, 87.252°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Pike County Energy Storage | Battery storage | 200 MW | 0.4 mi southeast |
| Heirloom Solar | Solar | 60 MW | 3.4 mi east |
| RATTS 1 | Solar | 150 MW | 3.6 mi east |
| IMPA Washington Solar Park | Solar | 4 MW | 9.0 mi north |
| Wheatland Generating Facility | Natural gas | 500 MW | 10.2 mi north |
| IMPA Washington Solar Park 2 | Solar | 9.9 MW | 10.7 mi north |
| Veolia ES Blackfoot Landfill Facility | Biomass and waste | 3.2 MW | 14.2 mi south |
| Edwardsport | Natural gas | 813 MW | 19.3 mi north |