This work highlights how the costs and CO2-emissions of land-based wind turbines can be reduced
by means of an innovative and material efficient support structure concept. Thereby the yaw
system is placed at the tower base allowing the whole wind turbine tower to be rotated. The
potential of a rotatable inclined lattice tower concept was analysed by means of
aero-servo-elastic load simulations in the FAST environment. A balance between different cost
aspects revealed significant savings.
