Nordex has received type certification for its Delta4000 series N149/4.0-4.5 turbine from TUV SUD.
The 12-month test has confirmed the design calculations for the unit, power performance, mechanical load as well as lifetime under different operating modes, said the German manufacturer.
Certification covers concrete, steel and hybrid tower of between 105 metres and 164 metres.
The 74.5-meter blade, including with the de-icing option, has been certified for 20 years on the basis of a dynamic and physical test by the certification outfit.
Nordex also said it has passed certification in respect of production of components. “The next steps will involve the production processes in the other production facilities,” added the company.
“In addition to this, the independent test labs WIND-consult and engineering office for acoustics Busch have measured the sound levels of the N149/4.0-4.5 in the wind farm. Here, among other things, sound power levels of 106.1 dB(A) at a power output of 4.5MW and a lower figure of 96.5 dB(A) at a power output of 2.9MW were confirmed.”