It is an effort to attract Norway’s Statoil to build the world’s first floating wind farm with its Hywind turbines in Scottish waters.

Salmond says Scotland wants to extend its support system, which gives an extra bonus for immature technologies such as wave and tidal to help the development of floating offshore wind.

Tidal power gets three renewables obligation certificates (ROCs) per MWh and wave power five ROCs/MWh.