Fukushima Experimental Offshore Floating Wind Farm Project Second Phase Update

One of the first major projects in Japan has started to transport its three-column semi-sub floating foundations from Nagasaki to Onahama today. The nacelle and tower for the 7MW oil pressure drive-type turbine is currently in construction at Mitsubishi Heavy Industries.

1. Outline of construction works in the second term:
Assembly and setting of two units of the 7MW oil pressure drive-type floating wind turbines, delivery of the facilities to the testing area, and connection to the undersea cable.

2. Work progress to date:
7MW oil pressure drive-type floating wind turbine

• Delivery of the three-column semi-sub floater from Nagasaki to Onahama port is in progress.

• Construction of the nacelle for the 7MW oil pressure drive-type wind turbine is in progress at Mitsubishi Heavy Industries, Ltd. Yokohama Dockyard & Machinery Works.
• Construction of the tower for 7MW oil pressure drive-type floating wind turbine is in progress at Mitsubishi Heavy Industries, Ltd. Kobe Dockyard & Machinery Works.

• Preceding works i.e. installation of chains, anchors and undersea cables at the testing area has been successfully completed.

• Ground improvement and installation of the undersea mound at Onahama port for mounting the wind turbine on the three-column semi-sub has been successfully completed.

The following steps need to be carried out to start operation of the power facilities depending on the meteorological and sea conditions: :

November 10th: Arrival of the three-column semi-sub floater and mounting at Fujiwara quay, Onahama port.
Late November - Late Januar: Assembly of a large-scale crane at Onahama port for the purpose of the installation work.
Early February: Installation of the 7MW oil pressure drive-type wind turbine on the three-column semi-sub floater, delivery of the facility and its mooring operation in the testing area.