Dieppe Le Tréport O&M Base Starts Taking Shape

February 13, 2025, by Adnan Memija

Construction of the operations and maintenance (O&M) base has begun for the 496 MW Dieppe Le Tréport offshore wind farm in France.

The Graves de Mer site on Quai Gaston Lalitte in Dieppe is being transformed following the recent start of the construction of the Dieppe Le Tréport O&M base.

Located on a 4,000-square-metre plot on the outer harbour of the Port of Dieppe, the base will create 70 local jobs, according to Ocean Winds.

The building will have a total surface area of 2,379 square metres. The base will consist of offices, storage areas, and changing rooms. All logistics will be coordinated from this building.

Two pontoons will also be set up on the adjacent quays to allow the transfer of technicians on board as well as the loading of parts using lifting equipment.

Structural work is scheduled to continue until August 2025, with the remaining construction expected to be finished by February 2026, when the O&M base will be delivered.

The Dieppe Le Tréport offshore wind farm is owned by the consortium formed by Ocean Winds, the Japanese company Sumitomo Corporation, and the French financial institution Banque des Territoires.

The project will feature 62 Siemens Gamesa 8 MW wind turbines installed at the site, some 15 kilometres off the city of Le Tréport and 17 kilometres off the city of Dieppe.

The project will have a generating capacity of 496 MW, enough to supply some 850,000 people with sustainable electricity per year from 2026.