Windtechnik and Vattenfall are strengthening their offshore service partnership.

DanTysk wind farm. Photo: Ulrich Wirrwa.

The independent service provider Deutsche Windtechnik and the energy supplier Vattenfall are expanding their cooperation in offshore maintenance: On the one hand, Vattenfall has extended the duration of its cooperation agreement with Deutsche Windtechnik in the area of maintenance for all steel structures at the offshore wind farm (OWF) DanTysk. On the other, the service provider is now also responsible for these important maintenance tasks at Vattenfall’s second major offshore wind farm project, the OWF Sandbank, which went into operation in July 2017.

The new contract includes inspection, maintenance and repair of all foundation structures (monopiles for the wind turbines and jacket structures for the offshore substations), the transition pieces, and the internal cabling for the wind farm, above as well as under water. There will be further collaboration during construction and production monitoring as well as in the areas of fault elimination work and switching operations.

Proven, forward-looking partnership
“Deutsche Windtechnik and Vattenfall have been cooperating successfully for three years on the DanTysk OWF,” said Christof Huß, Head of Operations DanTysk/Sandbank at Vattenfall. “The trust relationship that has grown over time, our proven communication channels, working methods and structures, particularly in the areas of work preparation, logistics and project management, can now be put to good use to quickly and reliably advance the Sandbank OWF project.” The Sandbank OWF is equipped with 72 4-megawatt Siemens wind turbines (SWT-4.0-130), and DanTysk comprises 80 SWT-3.6-130 turbines.

Synergies at the Sylt cluster
The offshore wind farms DanTysk, Sandbank and Butendiek are all located west of the North Sea island of Sylt, making them part of the ‘Sylt Offshore Cluster’. “Our teams are now deployed in the entire Sylt Cluster, allowing us to utilise synergies particularly in the area of logistics, but also in structural and personnel-related areas. Our cluster management enables us to operate even more flexibly and efficiently, and this benefits all parties involved,” said Carl-Rasmus Richardsen, Managing Director of Deutsche Windtechnik Offshore und Consulting. In his view, this is Deutsche Windtechnik’s strategic advantage.

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