Iberdrola starts the assembly of the first turbine for the hydroelectric power plant at Gouvães, in Portugal

Assembly of the first hydroelectric turbine in Gouvães has begun, a key milestone in the construction of our Tâmega Hydroelectric Complex, one of the most significant hydroelectric projects of this type in the European energy sector in the last 25 years.

This significant infrastructure, which endorses Iberdrola’s firm commitment to renewable energy, and represents an investment of €1.5 billion, consists of three plants: Alto Támega, Daivões and Gouvães. It will have a total installed power of 1,158 megawatts (MW), capable of producing around 1,766 gigawatts/hour (GWh).

Image Credit: Iberdrola

Specifically, the Gouvães plant, where works have just begun on installing the suction pipe for the turbine in group 4, will be an underground plant equipped with four reversible pump turbines, generating a total power of 880 MW.

The assembly of these pumps, in a cavern located at an average depth of 325 metres, and of considerable dimensions – 120 metres long, 50 metres high and 20 metres wide – will take until the end of 2021 to complete, when it is envisaged they will be up and running.

It must be noted that the Gouvães hydroelectric plant will be equipped with a pumped storage system, the only technology available for efficient storage of large amounts of power. At the same time, this type of installation provides the system with the flexibility required to handle the fluctuations in demand in real time.

In line with the Iberdrola group’s philosophy, the construction of the Portuguese complex in Támega is having a positive impact on the region’s economy, mainly in the municipalities concerned. By way of example, it is estimated that around 13,500 direct and indirect jobs will be created throughout the period of construction.

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