Sakiyama 2MW Floating Offshore Wind Turbine

Installation site

    Summary of Sakiyama 2MW Floating Offshore Wind Turbine (Haenkaze)

    Name:Haenkaze（Non-self-propelled vessel）
    Location:Approx. 5km off Sakiyama Fishing Port, Shimosakiyama-cho, Goto City,
    Nagasaki Prefecture
    Shape and
    dimensions:    		Total length 172m
    (Draft: 76m, Hub height: 56m, Rotor diameter: 80m)
    Floating body diameter: Maximum 7.8m
    Tower diameter: Maximum 4 .8m
    Weight:About 3,400 tons（without mooring）
    Structure type:Hybrid spar
    Mooring
    system:    		Three-point catenary mooring system (Steel chains)
    Wind turbine
    generator:     		Downwind (Maximum power output: 2,000kW)
    Others:Submarine cable: Total length about 5km

    Transmission of electric power

    The Haenkaze is the first floating wind turbine in Japan. The power generated is sent through submarine cable and distributed to households via a substation.

    Floating meteorological tower

    Name:Toki （Non-self-propelled vessel）
    Location:Approx. 2.0km southwest of Takanosuhana-todai lighthouse, Kabashima,
    Goto City, Nagasaki Prefecture
    Shape and
    dimensions:    		Total length 71.2m
    (Draft: 37.05m, Hub height: 28.2m)
    Floating body diameter: Maximum 3.8m
    Tower diameter: Maximum 2.375m
    Weight:About 400 tons（without mooring）
    Structure
    type:    		Hybrid spar
    Mooring
    system:    		Three points catenary mooring system (Steel chains)
    Meteorological device:3D ultrasonic anemovane
    Others:Navigation light: White Morse code
    (16 candela, 4 lights, visible distance: 3.0 nautical miles)
    Power supply from solar light and fuel cell
    The half-scale experiment model which was installed in FY2012 was remodeled
    into the floating meteorological tower.