DEME Group has installed the jacket for the Saint-Nazaire offshore substation.
The jacket will be held in place by four foundation piles, installed in April 2021 by DEME Offshore.
The contractor has used an in-house designed subsea template and tailor-made drilling equipment.
DEME said the expertise gained in this project will be implemented for the installation of the pile foundations for the Fecamp and Courseulles offshore substations.
A consortium of SDI/DEME Offshore, Atlantique Offshore Energy and GE Grid Solutions was awarded the EPCI contract for the Saint-Nazaire substation.
DEME Offshore chartered the heavy-lift construction vessel Pioneering Spirit for the transport and installation of the jacket and topside.
In the meantime its jack-up vessel Innovation continues the installation of the XL monopiles using the offshore foundation drill jointly developed with Herrenknecht.