All foundations have now been installed at Ocean Winds’ 496MW Îles d’Yeu and Noirmoutier (EMYN) offshore wind farm in France.
DEME Group said the 61st and final XL monopile is now in place, marking the completion of the drilled foundation installation campaign with its jack-up vessel Innovation.
According to DEME, the installation took place on a rocky seabed and in tough offshore conditions. The company deployed its 350-tonne offshore foundation drill, co-developed with Herrenknecht AG, along with the 60-metre-high MODIGA, which stabilises and protects the drilling and installation process from harsh ocean conditions.
A spokesperson for DEME said: “These innovative technologies enabled safe and efficient operations throughout the installation campaign.
“This milestone is above all the result of the people behind it – the skill, dedication and teamwork of everyone involved.
“From our offshore crews and onshore teams to our client Les Éoliennes en Mer Services, and all partners and subcontractors, this achievement was only possible thanks to close collaboration and a shared commitment throughout the campaign.”
Earlier this month, Ocean Winds achieved first power at the wind farm. This came just weeks after the installation of the first turbine, with initial units now supplying power to the national grid following testing that began on 23 May.
The wind farm, located off the Vendée coast, is expected to reach full commissioning by the end of 2025.


