Green transition

The Nordsee One offshore wind farm consists of 52 wind turbines with one substation collecting the power produced by the turbines. The wind farm will supply green electricity to approximately 400.000 German households.

Services provided by ISC

ISC have delivered the full detailed design for both the Nordsee One topside and jacket. The topside is a multi-story steel structure with five decks, including a cellar deck positioned on the top of the jacket structure for a cable pulling and cable hang-off. A helicopter deck is placed on the west side of the substation. Located in a water depth of 29 meters, the topside is supported by a four-legged lattice jacket is able to support 10 J-Tubes for array cables and 2 J-Tubes for export cables. Furthermore, ISC has handled the complete structural engineering design in place, sea transport, installation and lift of both topside and jacket. ISC has also collected all the necessary certifications packages and approvals such as ZIE approval for the grouted connection and the DNV-GL verification and the German standards approval.

General description of the project

The wind farm is owned and operated by RWE Innogy. The wind farm is located in the German Bight, 40 km north of the island Juist. The total capacity of the substation is 332 MV. The weight of the topside is 1890 tons and the total weight of the jacket is 1375 tons. The jacket is located at a water depth of 29 meters.

Additional information

The Nordsee One holds one of the best locations in the German North Sea looking at a low water depth combined with high wind speed.

Contact
Andreas Laungaard

Andreas Laungaard

Vice President Renewable Energy
Torben Løkkegaard

Torben Løkkegaard

Head of Offshore Substructures & Geotechnics
Peter Seielstad Nielsen

Peter Seielstad Nielsen

Business Development