Nowadays decarbonisation process and clean energy expansion are in full development era and increasing trend for future are encouraging. Through the numerous typologies of renewable technologies offshore wind has been estimated to have good opportunity of increasing in gross installed power for its large potential, possibility of exploit large maritime areas and cost that are in decreasing trend. All these advantages place this technology in a relevant role for worldly energy market share, not only for electric energy perspective, but with more innovative utilisation in green H2 production or Power-to-X. Offshore wind farms nowadays are mostly located in China and Northern Europe countries but most exploitable areas such as Mediterranean basin see more difficulties in development of this technology because of economic and technological issues.