DEME and Herrenknecht unveil Saint-Nazaire drill

DEME Group and Herrenknecht have commissioned a tailor-made subsea drill to be used on the Saint-Nazaire offshore wind farm. The news follows the drill passing Factory Acceptance Tests on September 30.

Saint-Nazaire will be the first wind farm in the world to use drilled XL-monopile foundations. It will be deployed from DEME Offshore’s installation vessel Innovation.

A consortium including DEME Offshore and Eiffage Métal was awarded the EPCI contract for the 80 foundations for the wind farm in 2019. The scope includes the design, fabrication and installation of the 80 steel foundations. The consortium contract is valued in the region of €500 million. The first foundations will be installed offshore, in rocky seabed conditions, in spring 2021, with completion being planned in summer 2022.

The 480 MW
Saint-Nazaire offshore wind farm, owned by EDF Renewables and Enbridge, will be located between 12 km and 20 km off the coast of the Guerande peninsula in western France. Water depths for the installation range between 12 and 25 metres. It will consist of 80 GE Haliade 150-6MW wind turbines and is poised to be the first commercial scale project installed in French waters. The wind farm is expected to generate enough electricity to supply 20% of the Loire-Atlantique department‘s power.  

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

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