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Published: 11 August 2014 11 August 2014

Vattenfall has awarded Siemens Energy an order for 72 Model SWT-4.0-130 wind turbines for its new Sandbank offshore wind farm. The project is being erected 90 kilometers west of the island of Sylt in water depths between 25 and 37 meters within the exclusive economic zone off the German North Sea coast.

Construction is scheduled to commence in summer 2015 and will be commissioned at the end of 2016. A service plan for the project will generate synergy from its close vicinity to DanTysk offshore wind farm, utilizing joint operations to drive down the maintenance costs of both projects. Vattenfall has contracted Siemens to perform maintenance services on the Sandbank installations for an initial period of five years. Service operations will center on a Service Operation Vessel (SOV) specially designed for these deployments. Following project commissioning, this specialized ship fitted with living accommodations for technicians and a workshop equipped with spare parts on board will take up position between the two wind farms. A helicopter will provide additional deployment readiness to enable crew to be ferried between land, the SOV and the wind turbines, irrespective of weather and sea conditions. DanTysk wind farm, already in an advanced stage of construction and likewise equipped with Siemens wind turbines of the G4 product platform, lies only 20 kilometers away.

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