Prepared for Debut: First Jackets on FarmLeTréportDieppe's Website
The Dieppe Le Tréport offshore wind farm, located off the coast of France, has made significant progress in its construction. The offshore electrical substation, a crucial component of the project, was successfully installed in early July 2025. This installation marks a key milestone in the project and the visible presence of the wind farm at sea.
The steel jacket foundation for the substation was fabricated by Navantia in Spain, while the offshore installation was performed by DEME, a Belgian marine contractor, aboard their vessel *Gulliver*. The offshore substation itself was designed and built by Chantiers de l’Atlantique at their Saint-Nazaire shipyard in France.
DEME is also responsible for the Engineering, Procurement, Construction, and Installation (EPCI) scope of 120 kilometres of inter-array cables at the wind farm. The company will also carry out the transportation and installation of the offshore substation's pin piles, jacket, and topside, in addition to the turbine foundations.
Regarding the pin pile installation specifically, the search results do not mention the contractor responsible for that phase or confirm its current status. However, since the jacket foundation has already been installed, it is reasonable to infer that the pin piles have either been installed prior or were part of the foundation installation carried out by DEME or subcontractors.
The Dieppe Le Tréport wind farm will feature 62 Siemens Gamesa 8 MW wind turbines and is expected to supply sustainable electricity to approximately 850,000 people annually from 2026. The installation vessel Apollo, owned by DEME, has already completed the pre-piling campaign at the site, involving the transport and installation of 248 pin piles.
The wind farm is owned by a consortium formed by the Spanish company Ocean Winds, the Japanese company Sumitomo Corporation, and the Banque des Territoires. The jacket installation phase for the wind farm is still scheduled to begin this summer.
As the wind farm progresses, the focus will shift to finalizing turbine installations and grid connection. The timeline indicates that operational readiness is the next focus, with the wind farm expected to contribute significantly to France's renewable energy goals.
The offshore wind farm project, comprising 62 Siemens Gamesa 8 MW turbines, is anticipated to shape not only the energy industry but also the finance sector, as it will supply sustainable electricity to approximately 850,000 people annually starting from 2026. This significant contribution towards France's renewable energy goals is set to be bolstered by advancements in technology, with DEME executing the Engineering, Procurement, Construction, and Installation (EPCI) of 120 kilometres of inter-array cables and leading the installation of various components like pin piles, jacket, and topside, alongside the turbine foundations.
