The wind farm is called Baltic 1, and consists of 21 Nordex 2.5 MW turbines.
The Nordex turbine has a rotor diameter of 90 meter, and has been in operation as a prototype off-shore machine in DONG Energys off-shore wind farm in Frederikshavn for several years.
On the picture below the turbine is seen behind the V90, that had its nacelle change some time ago.