Optimised nacelle shapes that can be cost effectively integrated onto modern multi-megawatt tur-bines will be developed. The increased energy yields of wind turbines equipped with these innova-tive nacelle shapes will be demonstrated. Furthermore, engineering models to optimise the nacelle shape and that can be used in industry standard wind turbine design tools will be developed. Therefore, in accordance with Switzerland’s “Energy Strategy 2050” the contribution of wind-generated electricity production in Switzerland’s future energy mix can be increased.