Certifying agency TÜV Süd has awarded the IEC type certificate for the N149/4.0-4.5MW turbine from the Delta4000 series of German-Spanish wind OEM Nordex Group.
TÜV Süd also has certified the NR74.5 rotor blade for a lifetime of minimum 20 years. The blade's anti-icing solution is also given the green light.
The certification is based on a comprehensive measuring and validation programme over the past twelve months with N149/4.0-4.5 turbines installed in summer 2018.
“This is a confirmation of the power performance and mechanical loads during operation as well as the lifetime of the turbine type under different operating modes,” the manufacturer said.