Portuguese create device to produce energy from waves

Deepak Gupta June 21, 2022
Updated 2022/06/21 at 2:08 PM

Portugal has been at the forefront in many areas of research. The latest news in this area comes from the University of Coimbra, where a group of scientists created an innovative device for producing energy from waves.

According to information, the invention is already protected by an international patent. Find out more details.

Modular coastal device that produces energy is fully submerged

According to information shared by the University, the device, called REEFS, an acronym for Renewable Electric Energy From Sea, is the result of eight years of research.

This wave energy converter developed at the UC, already granted an international patent, is a modular coastal device that is completely submerged, invisible to the sea surface. «It is supported on pillars and the rest of the seabed is free for all kinds of marine processes», explains the project leader, José Lopes de Almeida.

Portuguese create device to produce energy from waves

It is a device that «seeks to use technologies that already exist, namely ultra-low head turbines that are used in mini-hydro plants and that have recently become competitive in commercial terms. It is possible to migrate this technology to the sea and apply it precisely to take advantage of the unevenness created by the waves, which on our western coast often present heights of 1 to 5 meters”.

Portuguese create device to produce energy from waves

In practice, what the device does is to transform the alternating motion of sea waves into a continuous flow of water inside the REEFS converter. This flow, created between the crest and trough of the waves, can be used to drive the aforementioned ultra-low head mini-hydro turbines», which represents a considerable technological leap, as «we don't need to develop a technology from scratch, we can adapt a existing hydroelectric technology, said the project leader.

This equipment can also work as an artificial reef, inducing the early breaking of waves in order to remove some of their energy from the start before they reach the shoreline.

It should be noted that Portugal currently imports around 2/3 of its energy resources.

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