All Gravity-Based Foundations Stand at Fécamp Offshore Wind Farm

All 71 gravity-based foundations have been installed at the Fécamp wind farm offshore France, the project developer said.

Source: Parc éolien en mer de Fécamp

The installation of the foundations started on 1 August and was completed on 17 September with the installation of the final gravity-based foundation at the site located between 13 and 22 kilometres off Fécamp.

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The consortium of Boskalis, Saipem, and Bouygues Construction is in charge of supplying and installing the foundations for the 500 MW offshore wind farm.

The foundations were transported by barges in sets of three from the Bougainville yard in the Grand Port Maritime of Le Havre and installed at the site by Heerema Marine Contractors’ Sleipnir.

Bouygues, the consortium leader, and Saipem, are responsible for the design, construction, and installation of the foundations.

Boskalis is in charge of carrying out scour protection and ballasting of the foundations after the installation.

The operations of ballasting the gravity-based foundations with gravel are currently ongoing according to the established schedule.

Prysmian Group is expected to begin the installation of the inter-array cables which will transport the electricity produced by the wind turbines to the electrical substation this autumn.

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From the first half of 2023, the 71 Siemens Gamesa SWT-7.0-154 wind turbines will be installed on the foundations, then gradually commissioned.

Once the entire wind farm is in service at the end of 2023, it should produce the equivalent of the annual electricity consumption of 770,000 people, or the equivalent of 60 per cent of the electricity consumption of Seine-Maritime.

The project is being jointly developed by Eolien Maritime France (EMF), a joint venture between the French company EDF Renouvelables; EIH S.à.rl, owned by Enbridge Inc. and CPP Investments; and Skyborn Renewables (formerly wpd offshore).

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Photo: Parc éolien en mer de Fécamp