DEME Offshore wins three contracts for 500 MW French offshore wind farm

DEME Offshore, a Belgian offshore services provider, has won three contracts for the 500 MW Dieppe Le Tréport offshore wind farm, which will be built in the English Channel off the coast of France. DEME Offshore was chosen by the owners of Dieppe Le Tréport, which included Ocean Winds – a joint venture owned by Engie and EDPR – Sumitomo, and Banque des Territoires. The three contracts, totaling more than €300 million, include the transport and installation of pin piles and jackets to construct turbine foundations, as well as the transportation and installation of pin piles, jacket foundations and topside for the offshore substation.

Additionally, the company will design, procure, construct, and install 120 km of inter-array cables for the project. The installation of jacket foundations is projected to take place in 2025, with the piling operations for the offshore substation’s foundation starting the following year. After the substation is installed, DEME will lay cables using one of its cable installation vessels. The final investment decision was made by the Dieppe Le Tréport offshore wind project developers in April 2023. It is planned to be completed in 2026 and will be France’s sixth fixed-bottom offshore project.

The wind farm, which will be 15 km off the coast of Tréport, will have 62 Siemens Gamesa 8 MW turbines and supply 850,000 French homes with electricity each year. It is being developed with an estimated €2.7 billion investment. The contract for Dieppe Le Tréport comes after the contracts for the installation of monopile foundations and the substation at the Iles d’Yeu and Noirmoutier offshore wind farms, which DEME recently completed at Saint-Nazaire and Saint-Nazaire, respectively.