Date: March-July
Client: Energinet.dk
Recovery and disposal of the HVDC & FO-cable (OLD KONTEK)
A new 400 kV HVDC submarine cable from Gedser to Rostock in the Baltic Sea and across Storstrømmen between Zealand and Falster was installed in the summer of 2010. This cable (new KONTEK) replaced the existing KONTEK connection.
Following the installation of the new KONTEK submarine cable, Energinet.dk contracted JD-Contractor A/S to remove the old cable in accordance with legislation and permissions from Danish and German authorities.
Consequently JD-Contractor A/S recovered all parts of the OLD KONTEK Cable from Gedser to Rostock in the Baltic Sea and over Storstrømmen between Zealand and Falster. The cables were pulled out of the seabed and brought ashore for disposal.
Scope of work:
M/S Cable One located, exposed and cut the cable in six sections (four in the Baltic Sea and two in Storstrømmen). These sections were then pulled out of the seabed and loaded onto the cable barge C/B Henry P. Lading. Henry P. Lading then, assisted by 2 tugs, pulled the cables out of the seabed and brought them to the harbour of Grenaa, where the cable was cut into shorter pieces and loaded into truck containers.
Due to its shallow draft, S/B Victor was used to recover the landings in both Storstrømmen and the Baltic Sea by pulling up the cable in a similar fashion to that of Henry P. Lading.
A trencher was brought in to free the cable from the landside and a further short distance out to sea.
The entire cable was recovered with no parts left in or on the seabed.
Vessels used:
- C/B Henry P. Lading
- C/S Cable One
- S/B Victor
- M/S Marcos
- M/S Vina
- M/S Honte
- T/B Naja
- T/B Odin
- T/B Thor
