Floating offshore wind project moves forward

The second phase of an experimental Japanese floating offshore wind project has been successfully completed, its developers have announced.

A 7 MW oil pressure drive-type wind turbine – the world’s largest – has been assembled on a three-column semi-submersed platform at Onahama port, the companies said. In the project’s next phase, due to begin later this month, the platform will be delivered to the testing area.

The subsequent phase will also include assembly, setup and delivery of an additional 5 MW downwind-type floating wind turbine, as well as connection of both turbines to a subsea power cable.

Demonstration operation is expected to begin in mid-December. 

The project is sponsored by the Ministry of Economy, Trade and Industry and has been in the works since 2012. Its aim is an eventual 16 MW of floating wind power. Phase one, a 2 MW downwind-type floating turbine, came online in 2013.

Working on the project is a consortium composed of project integrator Marubeni, technical advisor the University of Tokyo, Mitsubishi, Mitsubishi Heavy Industries, Japan Marine United, Mitsui Engineering & Shipbuilding, Nippon Steel & Sumitomo Metal, Hitachi, Furukawa Electric, Shimizu and Mizuho Information and Research.

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