Siemens will supply 30 wind turbines to EWE and Enova Group to develop the Riffgat wind farm in the North Sea.

Siemens will install, connect and commission 3.6MW capacity wind turbines for the 108MW farm and maintain the farm for five years, under the deal

The wind turbines will be anchored to the seabed using monopiles and the farm will test a special type of junction between the foundation and the wind turbine.

Initial work on the 6km² site is expected to begin in 2011, subject to approval.