4 oil power plants in South Korea, totalling 4,677 MW of installed capacity — ranked by size, from open data.
| # | Plant | Region | MW |
|---|---|---|---|
| 1 | Ulsan | Ulsan | 3,000 |
| 2 | Pyeongtaek | Chungcheongnam-do | 1,400 |
| 3 | Jeju | Jeju-do | 255 |
| 4 | Hyundai Ulsan Factory power plant | Ulsan | 22 |
WRI Global Power Plant Database (CC BY 4.0).