Conduct of a verification test of construction technology for the suction bucket foundation in a real sea area

　Toyo Construction Co., Ltd. (Chiyoda-ku, Tokyo Metropolis, President and Representative Director:
Kyoji Takezawa, hereinafter “Toyo Construction”) and Hitachi Zosen Corporation (Osaka City, Osaka
prefecture, Sadao Mino: Representative Director President & COO, hereinafter “Hitachi Zosen”) have
conducted a verification test of construction technology for the suction bucket foundation, aiming
at application to bottom-mounted offshore wind power generation facilities, in a real sea area this summer.
This project is implemented with subsidy from NEDO (New Energy and Industrial Technology Development
Organization) for the “Low-Cost Construction Technology Development for Offshore Wind Power Generation
(Verification of Construction Technology)” of Research and Development of Wind Power Generation
Technologies (Research and Development of Offshore Wind Power Generation Technologies).

 

　In this development, Toyo Construction is in charge of construction and Hitachi Zosen is in charge of
design & manufacturing; in the test in the real sea area, using a quarter scale model, Toyo Construction
conducted an experiment on the construction and Hitachi Zosen on the structure.

　Regarding the workability of the suction bucket foundation, we conducted verification including removal
and confirmed that the impact of vibration, noise, and pollution during the construction on the surrounding
environment was very low.

　The two companies will, through technology verification, aim for practical use of the suction bucket
foundation around 2026.

 

　We will contribute to the realization of a low carbon & sound material-cycle society by developing
technologies for spread of clean energy.