Nemo Link’s first 59km long 400kV HVDC submarine cables loaded on one of the Installation Vessels: the Maersk Connector

After multiple seabed surveys, the disposal of UXOs, the clearance of out of service cables, and diverse other seabed preparation activities, Nemo Link is now ready to start its cable installation activities with its contractor J-Power System –a division of Sumitomo Electric – and its subcontractor DeepOcean.

The first lot of cables, destined to be laid in the UK- and part of French waters, has arrived from Japan early August. Since then, it has stayed at the Port of Blyth, UK, to be loaded out from the cable transportation vessel to a cable installation vessel.

This load-out operation has successfully been achieved and the installation vessel, called Maersk Connector, is now on her way to Pegwell Bay (Kent, UK) where cable installation will commence shortly.

The cable laying works will be carried out by two vessels: The Maersk Connector and the BoDo Installer.

Diagram Cable Installation Activities

Once the Maersk Connector arrives at Pegwell Bay, it will transpool part of the cable (9km) to a cable installation barge, called the BoDo Installer. The BoDo installer will complete the shallow water lay and trench in the near shore area. It is anticipated the installation barge will then ground and the cable will be pulled out on the beach.

In the meantime, the Maersk Connector will start laying the cable in the offshore waters. The cable lay is operated at a speed of 350m per hour. Once laid, the cable will be buried by the trenching support vessel, Havila Phoenix and the T3200 subsea trencher. The trenching support vessel will follow the cable laying vessel to minimize the duration of exposed cable and the use of guard vessels.

The cable installation operations mobilize multiple vessels and lots of other resources. They are impressive to watch, and therefore Nemo Link will share many pictures in the coming weeks!