Seaway Offshore Cables

SOC awarded contract for the Trianel Windpark Borkum II

Siem Offshore Contractors awarded contract for the Trianel Windpark Borkum II


14. November 2016, Leer/Germany – Siem Offshore Contractors GmbH (SOC), a wholly owned subsidiary of Siem Offshore Inc., announced today that it has been awarded the contract for the turnkey supply and installation of the inner array grid cable system for the Trianel Windpark Borkum Phase II (TWB-II) offshore wind farm by Trianel Windkraftwerk Borkum II GmbH & Co. KG. This contract award further demonstrates the Siem Offshore group’s commitment to expansion into the offshore renewable energy market.

The TWB-II offshore wind farm is located approx. 40 km north of the island of Borkum/Germany within the German Bight sector of the North Sea. The 32 x monopile mounted 6.33 MW wind turbine generators will be inter-connected by 36 x 33 kV medium voltage alternating current submarine composite cables with a total length of up to 61 km.

SOC will be utilising vessels and resources within the Siem Offshore group. The combined capabilities of Siem Offshore’s marine operations and the engineering and installation experience of SOC will form a natural and strong resource base to the benefit of the project, building on a strong track record since 2011.

SOC will be utilising vessels and resources within the Siem Offshore group

In addition to the submarine cable installation works, SOC will provide associated materials and services including the supply of the submarine composite cables, cable protection systems and related accessories as well as post-installation termination, trenching and testing services.

The project engineering works will commence immediately. The marine installation works are currently scheduled to be undertaken as of Q3 2018, but are subject to the project final investment decision, which is expected to be taken in Q2 2017.


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Lars Muck
Commercial Director