Consortium Led by Navantia and Windar Sets Sail with Initial Jackets for Dieppe Le Treport Offshore Wind Farm Project
The Dieppe Le Tréport offshore wind farm, located in France, is making significant strides towards becoming a key player in the country's renewable energy sector. With a capacity to generate 496 MW of electricity, the project is designed to supply green energy to approximately 850,000 people annually[1][3].
The development of the wind farm is being spearheaded by Les Éoliennes en Mer, a consortium led by OW Ocean Winds, in partnership with Sumitomo Corporation and Banque des Territoires[1][5]. The project is situated approximately 15 km from Le Tréport and 17 km from Dieppe in the English Channel[1][3].
The heart of the wind farm consists of 62 four-legged jacket foundations, each weighing 1,200 tonnes. These structures were manufactured by a strategic alliance between Navantia Seanergies and Windar Renovables, with the jackets being built in Navantia Seanergies' facilities in Fene, Spain[1][3][5]. The first four jacket foundations have already been shipped from the facility and are en route to the offshore site.
The offshore substation jacket was constructed at Navantia Seanergies' Puerto Real facility in Spain[1]. The installation of the wind turbines, the offshore substation, and the jacket foundations will be carried out by DEME under a contract signed with the developer in 2023[2].
Nexans holds the installation contract for the power cables, responsible for the turnkey delivery of export cables (offshore and onshore), including design, engineering, manufacturing, installation, protection, and long-term maintenance services. The export cables, operating at 225 kV, are essential for connecting the wind farm to the French electricity grid[2]. The cable installation, involving complex offshore operations using specialized vessels and equipment, has recently been completed[2].
With major components such as jacket foundations shipped and cable installation completed, the Dieppe Le Tréport offshore wind farm is progressing well. The project is on track to become a significant contributor to France’s offshore wind capacity and energy transition goals[1][2][5].
[1] Les Éoliennes en Mer. (2023). Dieppe Le Tréport offshore wind farm. Retrieved from https://www.eoliennesenmer.fr/en/projects/dieppe-le-treport
[2] Nexans. (2025). Nexans completes cable installation for the Dieppe Le Tréport offshore wind farm. Retrieved from https://www.nexans.com/global/about-us/press-releases/archive/2025/07/nexans-completes-cable-installation-for-the-dieppe-le-treport-offshore-wind-farm
[3] Offshore Wind. (2023). Dieppe Le Tréport offshore wind farm receives investment backing. Retrieved from https://offshorewind.biz/dieppe-le-treport-offshore-wind-farm-receives-investment-backing/
[4] Navantia. (2023). Navantia and Windar Renovables sign strategic alliance for offshore wind. Retrieved from https://www.navantia.es/en/news/2023/navantia-and-windar-renovables-sign-strategic-alliance-for-offshore-wind/
[5] Ocean Winds. (2023). Ocean Winds reaches financial close for the 496 MW Dieppe Le Tréport offshore wind farm. Retrieved from https://ocean-winds.com/news/2023/ocean-winds-reaches-financial-close-for-the-496-mw-dieppe-le-treport-offshore-wind-farm/
[6] Windar Renovables. (2023). Windar Renovables and Navantia sign strategic alliance for offshore wind. Retrieved from https://www.windar.es/en/news/2023/windar-renovables-and-navantia-sign-strategic-alliance-for-offshore-wind/
- As the Dieppe Le Tréport offshore wind farm continues to progress, it's evident that this project, with its focus on renewable energy, is set to make a significant impact in France's environment and reinforce the country's environmental-science efforts towards mitigating climate-change.
- The advancements in science and technology, as demonstrated by the collaboration between various entities involved in the Dieppe Le Tréport offshore wind farm, further prove the potential of market solutions in driving technological innovations for a sustainable future.
