抄録
Wind power is renewable and is regarded as one of the main countermeasures of global warming. Offshore wind power can harness more energy since offshore wind is stronger than onshore wind and is less turbulent above the sea surface. Furthermore，the ocean space has no bounds whereas there are many restrictions on the land. Recently，some studies report that the potential energy of offshore wind around Japan is many times greater than the country’s domestic demand for electric power. In this report，the current situation of R&D towards the utilization of offshore wind power is described for bottom mounted offshore wind turbines and for those on floating piles， structures or platforms.
