"It attests the conformity of the wind turbine design, manufacturing and testing processes for all safety-relevant items with the normative references," GL said in a statement.
The first prototype of the SWT-6.0 was installed in 2011 at the Høvsøre test site in Denmark with a 120-metre rotor. The second model, with a 154-metre rotor, was installed in 2012 at the new national test centre at Østerild, Denmark.
In January, Siemens installed two additional prototypes at Dong Energy's Gunfleet Sands III demonstration project in the UK. Both turbines for this project are equipped with the 120-metre rotor.
