First drilled monopile in at Saint-Nazaire

DEME Offshore has successfully installed the first drilled monopile at the 480 MW Saint-Nazaire offshore wind farm, off the coast of the Guerande peninsula in western France. The first few monopiles have been conventionally driven, but 73 of the project’s 80 foundations need to be drilled through calcarenite rock.

For the first time, DEME employed an offshore foundation drill and a tailor-made MODIGA unit, designed by DEME to handle drilling and installation operations, shielding them from the harsh Atlantic marine conditions. It is being deployed from the offshore installation vessel Innovation.

On the wind farm, DEME is working as part of a consortium with Eiffage Métal. The partners announced that the first monopile had been (conventionally) installed last month.

The 480 MW Saint-Nazaire offshore wind farm will be located between 12 km and 20 km off the coast of the Guerande peninsula in western France. Water depths at the site range between 12 and 25 metres. The project is expected to generate enough electricity to supply 20% of the Loire-Atlantique department‘s power. It being developed by Eolien Maritime France (EMF), a project company co-owned by EDF Energies Nouvelles Group and Enbridge.

For more information on offshore wind farms worldwide, click here.