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.
Status of Verification Test
Suction bucket used for the test
Quiet enough to maintain visual recognition of fish at the time of penetration