Sunday, April 17, 2011

Underwater Kites: Harnessing Tidal Energy

Minesto, the company behind that under-sea kite project called "Deep Green," has announced they've received over $560,000 from The Carbon Trust to dive forward with deploying a prototype of their technology. If successful, the company says it would generate enough electricity to power all of the homes in a city the size of Newcastle (population 189,863) by 2020.

These under-sea kites harness the power of oceanic forces in much the same way that land-based kites capture wind energy. As this article from SmartPlanet illustrates, a rudder-controlled kite "flies" through the deep ocean in a figure eight pattern, capturing and magnifying wave energy as water passes through, then channels it through a turbine which sends the power to a generator located below on the sea floor. Because the motion of the kite against the current can intensify the power of the ocean current by a magnitude of 10, this device can work effectively, even in less-than-vigorous waters. That enhances its potential globally and makes it a serious contender in the race for sustainable, renewable energy.


http://www.smartplanet.com/business/blog/intelligent-energy/tidal-energy-gives/5104/


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