The Nordex Group received the official statement of compliance for design according to IEC and type test certificates according to DIBt for the N149/4.0-4.5 from TÜV SÜD.As part of type certification according to international IEC standards TÜV SÜD tested and evaluated the overall concept as well as all the principal components of the N149/4.0-4.5. The turbine can be operated both with standard rotor blades and with anti-icing rotor blades for cold regions.