The unit itself is also 100 percent recyclable and has an uptime of virtually 100 percent
Despite being the most widely used form of renewable energy worldwide, hydroelectricity is generally reserved for large-scale commercial installations built around massive dams. Japanese company Ibasei has shrunk things down and removed the need to build a dam with its Cappa compact hydropower generator – a system that’s designed to be installed along a river or waterway.
The basic design of the Cappa is nothing new – blades rotate as the water flows through the unit, which drives a turbine to generate electricity. However, the unit is encased in a special diffuser that is designed to increase the velocity of the water at the point where it passes over the blades, thereby increasing the unit’s electrical output.
A company spokesman tells DigInfo that a water flow of 2 m/s (6.5 ft/s) will see one unit produce 250 W of electricity, while five units together will generate about 1 kW, taking control losses into account. The unit produces 100 V AC electricity at 50/60 Hz, so it can be used to power appliances around the (Japanese) home. The unit itself is also 100 percent recyclable and has an uptime of virtually 100 percent.
While you’d need quite a few of these things to completely power the average household – and I don’t know a lot of people with steadily flowing rivers running through their backyards, Ibasei anticipates the device could come in handy for providing power to remote communities and tourist attractions and in the event of natural disasters – floods in particular seem like a good fit for the technology.
via Gizmag – Darren Quick
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