Most wind turbines in the world today are bottom-fixed turbines standing in water depths of around 60 meters.
The next generation of offshore wind turbines is designed to float far out to sea. There the wind is stronger, but the depth of water makes it uneconomical to use bottom-fixed turbines.
The majority of the Norwegian continental shelf is suited for floating offshore wind. Although the potential in offshore wind is substantial, both floating and bottom-fixed offshore wind currently rely on subsidy schemes to be competitive in Norway.
Floating offshore wind has the most cost-intensive technology.