Posted on October 6, 2025
DEME has secured a sizable1 contract to carry out the transport and installation works for the inter- array cables for the Nordseecluster B offshore wind farm in Germany. The Nordseecluster is a joint offshore wind project of RWE (51%) and Norges Bank Investment Management (49%).
The Nordseecluster, located approximately 50 km north of the island of Juist (Germany), combines wind farm sites in the eastern part of the German North Sea. With a total capacity of up to 1.6 GW, the Nordseecluster will generate enough green electricity to supply the equivalent of 1,600,000 homes. RWE is in charge of construction and operations throughout the lifecycle of the Nordseecluster offshore wind farms.
DEME will transport and install a total of 124 km of inter-array cables for the second project stage – Nordseecluster B – connecting all 60 foundations for the wind turbines to the offshore substation in the German North Sea. The extensive scope includes all the engineering, preparation and supporting activities, ensuring that DEME will deliver a complete solution.
“This new project further reinforces our cooperation with RWE and DEME’s leadership in the European subsea power cable market. With our modern and versatile offshore fleet and specialized equipment, we are ideally positioned to successfully deliver this interesting scope. We look forward to working closely with the joint venture between RWE and Norges Bank Investment Management to ensure seamless execution and collaboration. The project will also benefit from DEME’s extensive experience in cable installation and burial,” says Philip Scheers (General Manager Subsea Power Cables – Offshore Energy).
Scheduled to start towards the end of 2027, DEME will deploy its offshore and cable installation vessel Living Stone, as well as additional supporting equipment.
Extensive track record in Germany
DEME has an extensive track record in offshore wind farm projects in German waters, both in the North Sea and the Baltic Sea. In the North Sea, DEME contributed to numerous projects, including RWE’s Kaskasi offshore wind farm as well as the following projects: Merkur, Hohe See, Albatros, Godewind I and II, Dolwin 6 and Borkum Riffgrund I and II. In the Baltic, DEME’s expertise includes projects such as Arcadis Ost and Baltic Power.
About DEME
DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, environmental remediation, dredging, and marine infrastructure. DEME also engages in concessions activities in offshore wind, marine infrastructure, green hydrogen, and deep-sea mineral harvesting. The company can build on nearly 150 years of experience and is a front-runner in innovation and new technologies. DEME’s vision is to work towards a sustainable future by offering solutions for global challenges: climate change, a growing population and urbanization, increasing maritime trade, and environmental issues. With a team of more than 5,800 highly skilled professionals and one of the most advanced fleets in the world, DEME is well-positioned to tackle even the most complex projects. DEME realized a turnover of 4.1 billion euros with an EBITDA of 764 million euros in 2024. For more information, please visit www.deme-group.com.
Contact
Media relations Investor relations
Frederic Dryhoel Carl Vanden Bussche
dryhoel.frederic@deme-group.com vanden.bussche.carl@deme-group.com
+32 473 86 31 91 +32 498 90 61 13
