The Provisional Type Certificate attests the conformity of the wind turbine design, manufacturing and testing processes for all safety relevant items with the normative references.
Siemens has developed the SWT-6.0 especially for the demanding conditions in offshore locations.
The first unit was installed in 2011 at the Høvsøre test site in Denmark with a 120 m rotor. The second 6 MW prototype with a 154 m rotor was installed in 2012 at the new national test centre at Østerild, Denmark.
In January 2013, Siemens installed two additional SWT-6.0 prototypes in the British offshore wind power plant at DONG Energy
's demonstration project Gunfleet Sands III. Both turbines for this project are equipped with the
120 m rotor.
GL RC is contracted to carry out the type certification of Siemens’ 6 MW offshore turbine. Type certification is required in many countries around the world and is often a condition to apply for international wind power plant tenders.