Three contracts, one windfarm, EUR 300 million!

By: Chris Anderson 03/05/2023 Deme edited by Chris Anderson

Cables CHMI Foundations General Substations Turbines Vessels Windfarms

DEME Offshore has been awarded three contracts for the Dieppe Le Tréport offshore wind farm in France. This is the third large-scale offshore wind farm project for DEME in France following their solutions deployed at Saint-Nazaire and the recent contract award of Iles d’Yeu and Noirmoutier wind farm.
The contracts cover:-
- The transport and installation of the pin piles and jackets forming the foundations for the turbines,
- The transport and installation of the pin piles, the jacket and the topside for the offshore substation.
- The EPCI scope (Engineering, Procurement, Construction and Installation) for 120 km of inter-array cables.
The Dieppe Le Tréport wind farm is owned by a consortium made up of Ocean Winds (Engie-EDPR), Sumitomo Corporation and Banque des Territoires. DEME Offshore believes it was chosen for its proven track record installing this type of jacket foundations, its cable laying expertise, and extensive experience of working on offshore wind farms with challenging site conditions.
According to the Deme press release Dieppe Le Tréport has similarities to the 950 MW Moray East offshore wind farm in Scotland, where DEME Offshore performed the full EPCI scope for 100 foundations and three offshore substations for Ocean Winds. Further they developed their own techniques for this project, which will be deployed at Dieppe Le Tréport, including a specialised rig and a jacket levelling and fixation system.
Piling operations for the offshore substation foundation are set to start in 2024 and the jacket foundation installation in the following year. One of DEME’s cable installation vessels is set to perform the cable laying scope, following the installation of the substation.
Dieppe Le Tréport follows the installation of the XXL monopile foundations at Saint-Nazaire and the contract award for the installation of monopile foundations and the substation for the Iles d’Yeu and Noirmoutier offshore wind farm projects. DEME Offshore has also completed the transport and installation of the offshore substations of Saint-Nazaire, Fécamp and Calvados.

The combined contracts represent a ‘large’ contract, which DEME defines as having a total value of more than EUR 300 million.

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