Iles d’Yeu et de Noirmoutier Offshore Substation Foundation Ready for Sail-Out

May 15, 2024, by Adnan Memija

Navantia Seanergies has completed the construction of the substation jacket foundation for the Iles d’Yeu et de Noirmoutier offshore wind farm in France. The unit has been loaded onto a barge at the Puerto Real shipyard in Cádiz, Spain, and is ready for transport.

The jacket foundation for the offshore wind farm’s substation is almost 64 metres high and weighs 1,700 tonnes. According to Navantia Seanergies, the unit has been completely built on schedule at the Puerto Real shipyard in Cádiz, Spain.

OW Ocean Winds, a joint venture between the French company Engie and the Portuguese company EDP Renováveis, selected Spain’s Navantia to build two jacket-type foundations and the associated piles for the substations of the 496 MW Iles d’Yeu et de Noirmoutier and the 496 MW Dieppe Le Tréport wind farms.

According to Navantia Seanergies’ latest social media post, a second substation jacket for Dieppe Le Tréport is currently under construction at the Puerto Real shipyard.

The Iles d’Yeu et de Noirmoutier offshore substation will be built by Chantiers de l’Atlantique in Saint-Nazaire, France.

The wind farm’s foundation and the substation will be transported and installed by DEME and Allseas.

For the substation, the Belgian company will install the pin piles for the jacket foundation and transport the jacket and the topside to the project site. Once at the offshore site, the jacket and the topside will be transferred to Allseas’ vessel Pioneering Spirit for installation with its 5000-tonne crane.

The 496 MW Iles D’Yeu et Noirmoutier offshore wind farm is located off the coast of Vendée, 11.6 kilometres from the island of Yeu and 16.5 kilometres from Noirmoutier.

The project is developed by Éoliennes en Mer des Îles d’Yeu et de Noirmoutier (EMYN), a consortium including Ocean Winds (an ENGIE and EDPR joint venture), Sumitomo Corporation, La Banque des Territoires and Vendée Energie.