This windmill can generate power by harnessing the energy from typhoons and tropical storms.
Japanese start-up Challenergy has designed a turbine that works in harsh cyclonic conditions - an environment that typically shuts down most wind installations.
It could become Japan's source of green energy, as governments and companies globally rush to install as much renewable energy capacity as possible to cut carbon emissions.
Atsushi Shimizu founded Challenergy three years after the 2011 Fukushima nuclear accident sent him on a quest to find a sustainable source of energy.
(SOUNDBITE) (Japanese) CHALLENERGY CEO, ATSUSHI SHIMIZU, SAYING:
"If we can just partially leverage the vast energy brought by typhoons, we can in a way consider typhoons not just as disasters, but as a source of energy."
Japan experiences on average 26 typhoons and tropical storms a year.
Meteorologists say they are getting more frequent and more powerful with climate change, making the path to development of wind power viewed very tough.
Shimizu says the trick is to build vertical wind turbines, that can withstand strong winds and rains.
Challenergy's "Magnus Vertical Axis Wind Turbine" has ditched pointed blades for upright square ones that spin on a horizontal axis to the direction of the wind.
(SOUNDBITE) (Japanese) CHALLENERGY CEO, ATSUSHI SHIMIZU, SAYING:
"The vertical axis makes it possible to not be affected by wind direction. By using the Magnus system instead of a propeller, the system can be controlled safely to a certain extent even in strong winds without going out of control, and also generate electricity. That is the basic concept of the vertical Magnus wind turbine."
In August, the company started a demonstration of a 10-kilowatt tower in the Philippines.
It's also aiming to incorporate solar power generation and storage batteries to provide more stable supplies of electricity in the area in the future.
