Gouvães Dam

Gouvães Dam (Barragem de Gouvães) is a rockfield dam on the Torno River. It is located in the municipality Vila Pouca de Aguiar, in Vila Real District, Portugal and it is part of the wider Tâmega Electricity-Generating Group formed of three dams and three plants

Iberdrola signed a 70-year concession with the Government of Portugal in July 2014 for the design, construction and operation of three projects: Alto Tâmega, Daivões and Gouvães dams.

Construction of the dam completed in July 2022.

Dam
Gouvães Dam is 35 m tall.

Reservoir
The reservoir surface area for the dam has 3.4 km2.

Power plant
The generating unit of the dam consists of four 220MW reversible turbine units with a diameter of 3,500 mm and speed of 600rpm and producing 1468 GWh of electricity a year.

The maximum discharge capacity of the spillway located on the left of Gouvães dam is of 67 m3/s. The dam also includes 6.5 km of tunnels along with a 750 m shaft. The penstock is a concrete tunnel with a length of 4.7 km and diameter of 7.3 m.