The SG DD-276 model could generate up to 21.5MW with a 276 metre rotor.
The prototype structure has been certified by DNV and has until 2027 to develop the model, according to the Danish wind turbine certification authority.
In Denmark is a requirement that wind turbines with a rotor area over 5 m2 have a valid certificate.
This is to ensure that wind turbines installed in Denmark are designed and produced in a safe manner.