Gouvães Dam (Portuguese: 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
|Official name||Barragem de Gouvães|
|Location||municipality Vila Pouca de Aguiar, Vila Real District|
|Coordinates||41°29′39″N 7°43′38″W / 41.49417°N 7.72722°W|
|Dam and spillways|
|Installed capacity||880 MW (1,180,000 hp)|
|Annual generation||1468 Gwh|
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.
Gouvães Dam is 35 metres (115 ft) tall.
The reservoir surface area for the dam has 3.4 km2 (1.3 sq mi).
The generating unit of the dam consists of four 220MW reversible turbine units with a diameter of 3,500 mm (140 in) 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 (2,400 cu ft/s). The dam also includes 6.5 km (4.0 mi) of tunnels along with a 750 metres (2,460 ft) shaft. The penstock is a concrete tunnel with a length of 4.7 km (2.9 mi) and diameter of 7.3 m (24 ft).
- ^ "Tamega Project". Iberdrola. Retrieved 2022-07-22.
- ^ "Financing sought for Tamega river complex". Hydropower Dams. Retrieved 2022-07-22.
- ^ "Iberdrola inaugura pilha gigante". Público. Retrieved 2022-07-22.
- ^ a b c "NS Energy - Tamega River Hydropower Complex". NS Energy. Retrieved 2022-07-22.