The floating wind turbines responded to the need of the exploitation of the wind potential in deep sea areas. Norwegian Statoil built the first floating wind farm in Hywind, Scotland, only in  2017.
It is the solution that fits well with the Greek marine data.

Related Links:

• Floating Offshore Wind Vision Statement
• Our offshore wind projects
• The market outlook for floating offshore wind
• Q&A: How viable are floating offshore windfarms? | Carbon Brief
• Hywind—the leading solution for floating offshore wind power