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Let’s Go Float a Kite


Here’s an idea that could give a boost to offshore energy plants: underwater kites that harness tidal energy. Water is almost 800 times denser than air, so capturing the its force could ultimately be even more efficient than using wind power.

Called Deep Green, the low-cost and low-impact kite captures tidal power ten times faster than the speed of the water it operates in, resulting in 1,000 times more energy gains.

The prototype, made by Swedish start-up Minesto, is expected to produce 500 kilowatts of power and could be combined with offshore wind farms, for a joint marine energy effort.

Watch as the sea kite powers a train set in this video:

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Image via Minesto

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