The “Iron Gate I” hydropower and navigation system is located at 863 km upstream of the Danube River mouth into the Black Sea, at the Kusjak-Ostrovul Mare profile. Both Serbia and Romania each dispose over one power plant, one additional power plant, spillway dam and ship lock.
The power plant was first synchronized in 1985.
The most important characteristics of the “Iron Gate II” HPP with the appurtenant structures are given below:
- Reservoir
| Total volume | 716.5 million m3 |
- HPP
| Type | in river, run-off-river |
| Maximum head | 12.5 m |
| Minimum head | 2.5 m |
| Installed discharge | 4,200 m3/s |
| Installed power | 270 (10 x 28) MW |
| Number of units | 8 |
| Turbine type | Bulb |