Based on the installed power capacity, position and the volume of the reservoir, Fierza plays a key role in the exploitation, regulation and safe operation of the Drin cascade.

Fierza HPP was built with equipment mostly from China but on the concepts of Albanian engineers.

[2] The four units installed in the plant have "Francis" vertical turbines with 125 MW power each; 3-Phase synchronous generators of 13.8kV voltage; and lifting transformers 13.8kV/242 kV for the connection with the transmission substation.

The annual output of Fierza HPP averages in 1,330 GWh, that represent approximately 33% of Drin cascade production.

The importance of Fierza, beside energy production, relates on the capacity of its lake which regulates the annual inflows and increase the efficient use of the Drin cascade.