Скачать или смотреть France builds wave-powered breakwater

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France builds wave-powered breakwater

The first full-scale wave-powered breakwater system for ports has begun in northern France. The project is being led by French marine research institute Ifremer and GEPS Techno, while construction work is being undertaken by UK-based Legendre Group.

In a bid to move away from fossil fuels, scientists are looking for cleaner approaches to meet energy demand. Although wind and solar energy projects are growing rapidly, electricity production is disrupted when there is no sun or no wind. This is why alternative renewable technologies are being explored that rely on more consistent energy sources, such as tidal and wave energy. One of these projects is the Dikwe system, which serves the dual purpose of protecting coastlines and generating clean energy.

What is a Dikwe?

Breakwaters are artificial structures that provide protection against currents and wave pressures. Such structures have been built since ancient times, but until now they have only been used for protection. With Dikwe, researchers are integrating low-carbon energy production systems into these structures, making them energy positive.

The system consists of a wing structure that moves back and forth with the incoming waves. This wing is connected to a mechanism that converts wave energy into electrical energy. The concept was first developed at the French marine research institute Ifremer and then developed over a decade to reach full-scale demonstration level.

In 2012, GEPS Techno partnered with Ifremer to develop an energy production device that does not harm marine life. With Ifremer’s technical expertise, the Dikwe energy harvesting system was first designed in a digital environment and then tested with small prototypes.

The first tests were carried out with a 1/15 scale model at Ifremer’s Deep Wave test center in Brest. Over the years, the project was expanded to produce a 1/4 scale prototype measuring 4.5 meters in length, which was tested in July 2022. Following successful tests, Legendre Group and GEPS Techno established a joint venture, Wave-Op, which aims to use port infrastructures for energy production.

Legendre Group is currently building a full-scale technology demonstration unit in Boulogne-sur-Mer. - Source: donanimhaber.com