Disadvantages of conventional offshore wind turbines

Because of the high cost of transmission and installation, offshore wind turbines can only be installed near land, where wind power is weak, and they occupy fishing grounds, competing with fisheries.

Advantages of power generation using autonomous kite-sailing energy harvester

We are currently developing an autonomous kite-sailing wind energy harvester that uses a water turbine to generate electricity while sailing on the offshore wind power captured by a kite. The power generated is stored in the floating structure, which moves freely over the ocean, so the harvester does not compete with the fishing industry. Furthermore, the system will be carbon-neutral by capturing the vast amount of unused wind power in distant oceans. Because of its autonomous navigation function and high mobility, it can be used for many purposes other than power generation, such as meteorological and tsunami observation, submarine resource exploration, maritime security, offshore communication, and marine debris collection, if equipped with observation, monitoring, and communication equipment. We are advocating the DeepSky concept, which realizes carbon neutrality through the vast amount of offshore wind power by using the vast Exclusive Economic Zone as virtual national land through autonomous kite-sailing wind energy harvesting.

Hydro-VENUS Turbine

We have been developing the Hydro-VENUS turbine to utilize for the Autonomous Kite-Sailing Energy Harvester. It is a flow-induced oscillation based hydro turbine using columnar pendulums. Due to the simple geometrical shapes of the pendulums, the Hydro-VENUS is cost-effective, light-weight and high-strength. Its patents are acquired in Japan, EU, US, China and Australia. We have established the Hydro-VENUS Co., Ltd.

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