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IHI's ocean current power generation system demonstrator "KAIRYU

IHI's ocean current power generation system demonstrator "KAIRYU

On the 25th, IHI unveiled its underwater floating power generation system demonstrator "KAIRYU" (photo) at its Yokohama Works (Isogo Ward, Yokohama City). It is being developed as part of a project by the New Energy and Industrial Technology Development Organization (NEDO), and generates electricity by turning 11-meter diameter fiberglass turbine blades underwater with the power of ocean currents. Compared to the previous operation, the autonomous control program that adjusts the tilt of the turbine blades and the floating structure during operation has been improved, and rectifier plates have been added so that the ocean currents will hit the blades more efficiently. Power generation efficiency is 50-70%, which is higher than that of solar power (12%), onshore wind power (20%), and offshore wind power (over 30%). IHI's Yokohama Plant in Isogo Ward, Yokohama City, July 25, 2019; Credit: Nikkan Kogyo Shimbun / Kyodo News Images

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A view of the city of Onomichi

A view of the city of Onomichi

Mt. Jododera is seen from Mukoujima and Tomihama Beach on the south side of Onomichi Suido. Jododera Temple and Kairyu Temple are visible at the foot of the mountain. A man balancing a pole with containers of fertilizer on his shoulder and a mother and children are visible in the foreground.==Date:unknown, Place:Onomichi, Photo:Ogawa Kazumasa, (Credit:Nagasaki University Library/Kyodo News Images) [Cabinet Number9‐39‐0]

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