Iron Gate III Hydroelectric Power Station

Unlike the first two, which were joint projects of Yugoslavia and Romania, the Iron Gate III would lie entirely on Serbian territory.

Both states also planned additional power plants of 120 MW adjoining the third dams, which were to function only during high-water levels, accepting the water surplus.

If built at the time, the Iron Gate III and Bistrica plants would make 37% of Serbian electricity production capacity in 2021.

[1] In August 2021, both the Iron Gate III and Bistrica II projects were revived, with construction tentatively announced for 2022.

The new hydro capacities would play a major role in Serbian transition to renewable energy sources, though the price was set to "several billion euros".

[4][5] By the end of the year, the Serbian government allocated €1.5 billion in the 2022 budget for the construction of Iron Gate III, about half of the total projected costs.