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Consortium to install Fécamp wind farm foundations

Published by
Energy Global,

Bouygues Travaux Publics (mandatory, 40.5%) in consortium with Saipem (40.5%) and Boskalis (19%) have been awarded the design work, construction and installation scope for 71 concrete gravity-based structures (GBS) as foundation for the Fécamp offshore wind farm in Normandy, France. The award was made by EDF Renewables, Enbridge Inc and wpd Offshore. The contract carries a total value of €552 million.

The offshore wind farm will be located between 13 and 22 km off the coast of Fécamp in Normandy. The 71 wind turbines will be connected to the gravity-based foundations installed on the seabed at depths between 25 and 30 m.

Within the consortium, Bouygues and Saipem are tasked with the design, construction and installation on the seabed of the gravity-based foundations with an individual weight of up to 5000 t necessary to provide the stability of the 7 MW wind turbines. Boskalis is tasked with the design and preparation of the seabed rock foundation prior to GBS installation, and the scour protection and ballasting of the GBS after installation on the seabed.

The foundations will be constructed in the Bougainville maritime works yard in the Grand Port Maritime of Le Havre and will be transported by barge to the offshore wind farm site. The works, which will start in June, should be completed by the end of 2022. The commissioning and operational start-up of the wind farm are planned for 2023.

With a total power output of some 500 MW, the Fécamp offshore wind farm should produce the equivalent of the domestic electricity consumption of approximately 770 000 people, more than 60% of the inhabitants of the Seine-Maritime department.

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