DeepOcean reserved for Nordseecluster A wind farms

RWE has signed an agreement with DeepOcean to support the Nordseecluster A offshore wind project in the German part of the North Sea.

The investment will be carried out in two phases, Nordseecluster A and Nordseecluster B, with a total capacity of 1.6 GW, approximately 50 km north of the island of Juist.

In August last year, RWE appointed DeepOcean as its preferred supplier of subsea installation services for Nordseecluster A. The company now has a firm order covering the preparatory works and transportation/installation of all interconnector cables, including trenching, topside cable pulling and terminations for the initial expansion phase.

In total, DeepOcean will install 185 km of 66-kV aluminum and copper cables to connect 44 Nordseecluster A offshore wind turbines (total capacity 660 MW).

Offshore construction is set to begin next year. All wind turbines should be connected to the grid by early 2027. The second phase, Nordseecluster B, adding another 900 MW of capacity, should begin commercial operations in early 2029.

DeepOcean’s scope of work includes project management and design; offshore preparation works including pre-installation cable route survey, route design and burial assessment; boulder handling, foundation preparation works and offshore substation preparation works; in-line cable transport/installation including burial, pulling, monitoring and testing; and seabed survey and monitoring.

The company’s Aberdeen office will manage the programme, with support from other offices in the UK and Norway. Offshore preparations and pre-installation surveys are due to commence in Q2 2025, with main works commencing in early 2026.

DeepOcean will use three ships for the campaign.