Iberdrola Opens the 1,158MW Tâmega Giga
The 1,158MW Tâmega facility is capable of storing 40 million kWh, equivalent to the energy consumed by 11 million people during a
Last year in the Tâmega river, the utility inaugurated Portugal's largest pumped hydroelectric storage complex, one of Europe's largest. With an investment of €1.5 billion, it has three dams and three power plants (Gouvães, Daivões and Alto Tâmega) and a combined installed capacity of 1,158 MW.
When Portugal's electrical system needs a boost, a signal activates a power plant buried deep in a hillside in the country's scrubby, pine-covered north. Inside the man-made cavern, valves, nine feet in diameter, suddenly open, allowing water draining from a reservoir four miles away to begin streaming through four massive turbines.
Iberdrola plans to invest an additional €3 billion in wind and solar energy in Portugal over the coming years. At the end of 2022, construction was completed on the Alcochete solar complex (46 MW) in the Setúbal district (Lisbon region), where the company has also completed two other PV facilities: Conde (13.5 MW) and Algeruz II (27 MW).
The hydroelectric power plants will be joined by two wind farms, which will turn the complex into a hybrid generation plant. In 2024 we obtained the final environmental authorisation to build what will become one of the largest wind farms in Portugal with a capacity of 274 MW.
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