Gibson
Gibson is a coal plant in Gibson County, Indiana, operated by Duke Energy Indiana, LLC. By nameplate capacity it is the tenth-largest power plant in the United States and the largest in Indiana. Among the 195 coal plants in the country it is the third-largest. Within the MISO (Midcontinent) balancing area it is the largest of 2,383 plants.
Nameplate capacity, 2025
3,340 MW
3,132 MW net summer capacity
5 operable units
- Coal steam3,340 MW100%
Unit by unit, 1975 to 2025
operating in 2025bar height follows unit size
Unit 2 Coal steam, 668 MW, 1975
Unit 1 Coal steam, 668 MW, 1976
Unit 3 Coal steam, 668 MW, 1978
Unit 4 Coal steam, 668 MW, 1979
Unit 5 Coal steam, 668 MW, 1982
Among Indiana’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Gibsonthis plant
- 2Rockport2,600 MW
- 3AES Petersburg1,350 MW
Other rankings
- Coal plants in Indiana
- 1st of 11
- Plants run by Duke Energy Indiana, LLC
- 1st of 14
- Biggest single unit, among Indiana’s plants
- 3rd of 221
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2 | Coal steam | 668 MW | 630 MW | 1975 | Operating |
| 1 | Coal steam | 668 MW | 630 MW | 1976 | Operating |
| 3 | Coal steam | 668 MW | 630 MW | 1978 | Operating |
| 4 | Coal steam | 668 MW | 622 MW | 1979 | Operating |
| 5 | Coal steam | 668 MW | 620 MW | 1982 | Operating |
Who owns it
Shares are weighted by the nameplate capacity of each unit an owner holds.
| Owner | Share of capacity |
|---|---|
| Duke Energy Indiana, LLC | 10.0% |
| Wabash Valley Power Assn, Inc | 5.0% |
| Indiana Municipal Power Agency | 5.0% |
| Duke Energy Indiana, LLC (sole owner of the other units) | 80.0% |
Grid and site
- Balancing area
- MISO (Midcontinent)
- Reliability region
- ReliabilityFirst
- Highest grid connection voltage
- 345 kV
- Water source
- Gibson Lake
- Nearest town on record
- Owensville
- Operator type
- Utility
- Coordinates
- 38.372°N, 87.766°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Gibson Solar | Solar | 200 MW | 13.3 mi east |
| Volkman Road Solar Array Hybrid | Solar | 3 MW | 19.4 mi southeast |
| SV CSG Aldridge A, LLC | Solar | 2 MW | 24.1 mi north |
| SV CSG Aldridge B, LLC | Solar | 2 MW | 24.1 mi north |
| Toyota Boshoku | Solar | 4.8 MW | 25.2 mi north |
| Boomtown Renewable Energy Center | Solar | 150 MW | 26.8 mi southwest |
| Carmi | Oil and petroleum | 13.4 MW | 28.8 mi southwest |
| Oak Hill Solar Array | Solar | 2 MW | 29.3 mi southeast |