NewNergy

NewNergy discusses the latest inventions, innovations and breakthroughs in the energy & environmental sciences.

Wind Energy From Hot Air Balloons

Posted on Monday, January 26, 2009 posted by posted by Mak @ 10:40 PM

Environmental consultant Ian Edmonds has developed a “balloon engine” that could potentially compete with wind power. According to Edmonds, a 44 meter-diameter balloon could generate 50 kW of power—enough energy for 10 homes. If the balloon’s diameter is doubled, power production increases tenfold.

Edmond’s system works by using solar energy to fill a balloon with hot air. The rising balloon pulls a tether, which turns a generator on the ground. Once the balloon has floated up to 3 kilometers, air is released and it loses buoyancy. The balloon needs less energy to be pulled down and a net power gain is reached as a result.

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