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CURRENT ISSUE

OFFSHORE WIND
What size market will offshore wind farms create for the U.S. marine industry?

Huge
Quite substantial
Limited
Negligible

WIND TURBINE INSTALLATION VESSEL

March 9, 2010

Wärtsilä and IMS awarded wind farm ship design contract

RWE Innogy, a unit of German power utility RWE AG, has engaged a consortium of Wärtsilä and IMS Ingenieurgesellschaft mbH, to provide the basic design and consultancy services for the offshore wind farm construction vessels it is building at Daewoo Shipbuilding & Marine Engineering Co., Ltd. (DSME),

The ships are jack-up crane vessels tailored specifically for year-round construction of offshore wind farms and designed to remain operational under harsh Northern European sea and wind conditions.

The vessels are 100 m long and 40 m wide, and feature an 800-ton crane for transporting and handling the foundations for the latest generation of up to 5 MW and 6 MW offshore wind turbines, as well as the turbine towers, nacelles, rotors and blades. The vessels have sufficient deck area and deadweight capacity to carry the components for up to four complete wind turbine units or several foundations. For operation in shallow water, a four-point mooring system is used, while in deeper waters a DP2 dynamic positioning system controlling steerable thrusters is employed.

The vessels are designated to undertake foundation and turbine installation at RWE Innogy's currently planned wind farms "North Sea East", "Innogy North Sea 1" and "Gwynt y Mor".


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