The thesis addressed the issue of the wakes and their aerodynamical losses generated by wind farm turbines from two main perspectives: the potential microclimatic impacts they may cause in the surrounding environment (particularly if directed towards the mainland in the case of large offshore wind farms) and the degradation in performance and Annual Energy Production (AEP). The proposed methodology involved two software tools, PyWake and FLORIS, developed respectively by DTU and NREL, whose potential applications have been highlighted. These software tools implement a range of different analytical wake models and are capable of simulating wake propagation and assessing the resulting downwind velocity deficits comparing their behaviours.