Asso Subsea to Install Vesterhav Cables

Asso Subsea secured a contract to install the array and export cables for the 350MW Vesterhav offshore wind project off Denmark.

Vattenfall awarded Asso Subsea the contract, which covers the transportation, installation, protection and commissioning of the 66 kV submarine cables.

The overall system will consist of four export and 37 array cables, for a total of more than 70 km to be installed along a submarine route characterised by high technical challenges, including shallow water areas, boulder fields, mobile sediments and a great variety of conditions from very soft to hard soils.

Asso Subsea will use most of its fleet, including the DP2 cable laying vessel Atalanti, specialised in extremely shallow water environments, and the DP2 trenching support vessels Argo and Aethra for the seabed preparation and post-lay burial operations.

The latest versions of the trenching machines from Asso will be mobilised in order to provide the required protection of the cables along the whole submarine route.

The completion of the project is scheduled by mid-2023.

Hellenic Cables is supplying array cables for the offshore wind farm.