The Sao Pedro do Sul power plant is located on the upper reaches of the Vouga River, in the Sao Pedro do Sul municipality. Construction of the facility began in January 1992 and operations started in February 1994.
The plant is equipped with two Francis turbines and has an installed capacity of 8.2MW with expected annual production of 25.0 GWh (average is 22.9GWh).
Head of 69.7m and a flow of 8 m3/s.