Gouvães Dam

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[1]

Gouvães Dam
Gouvães Dam is located in Portugal
Gouvães Dam
Location of Gouvães Dam in Portugal
Official nameBarragem de Gouvães
Locationmunicipality Vila Pouca de Aguiar, Vila Real District
Coordinates41°29′39″N 7°43′38″W / 41.49417°N 7.72722°W / 41.49417; -7.72722
Opening date2022
Dam and spillways
ImpoundsTorno River
Installed capacity880 MW (1,180,000 hp)
Annual generation1468 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.[2]

Construction of the dam completed in July 2022.[3]


Gouvães Dam is 35 metres (115 ft) tall.[4]


The reservoir surface area for the dam has 3.4 km2 (1.3 sq mi).[4]

Power plantEdit

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).[4]

See alsoEdit


  1. ^ "Tamega Project". Iberdrola. Retrieved 2022-07-22.
  2. ^ "Financing sought for Tamega river complex". Hydropower Dams. Retrieved 2022-07-22.
  3. ^ "Iberdrola inaugura pilha gigante". Público. Retrieved 2022-07-22.
  4. ^ a b c "NS Energy - Tamega River Hydropower Complex". NS Energy. Retrieved 2022-07-22.