Japanese company Ibasei has created the Cappa hydroelectric generator. The Cappa is essentially a shrunken dam. The device works in the same way as a dam, water pushes a turbine to create electricity, but Ibasei has designed their creation to be used on a smaller scale. Instead of using the Cappa to dam mighty rivers, the company imagines it being used along rivers and streams.
One Cappa hydroelectric generator is capable of producing 250 watts of electricity at a water flow rate of 6.5 feet per second. This power output isn't nearly big enough to power and entire house, but and Ibasei knows that. It sees the Cappa as ideal for use in remote areas without power and during emergency situations. The Cappa hydroelectric generator is scheduled to go on sale sometime in 2013 and will sell for around the price of a compact car.
Portable Aquatic Powerplants
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