Development of the floating structure for the Sailing-type Offshore Wind Farm

Feasibility studies for the sailing-type offshore wind farm have been carried out by National Institute for Environmental Studies. This system is composed of a very large floating offshore structure with sails and a lot of wind turbines on the structure. Conventional catenary mooring system is no longer practical for station-keeping a kilometer sized floating structures in over hundreds meters of water depth. This floating structure sails around EEZ of Japan seeking appropriate breezing and avoiding meeting heavy storm. This floating structure has self-mobile and station-keeping capability using the sail control system and semi-sub hull structure. This paper presents the development of this floating structure based on the hydro-elastic response analysis in waves and structural optimization.