Wind power is becoming one of the best options for renewable energy. Far-offshore wind turbines are attractive in view of exploiting high-speed winds and high wind availability while reducing impact on human and animal population. In the last few years, this technology is having a big development especially in North Europe where there is a great wind resource. Taking note of this, there are currently no offshore wind farms installations in Mediterranean. The aim of this thesis is to model an offshore floating wind turbine in its entirety and examine the behavior resulting from a wide spectrum of sea and wind states describing a specific site near Pantelleria, in view of a future installation of a wind farm in this site.