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A simple balloon can aid the production of cheap electricity

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 A simple balloon can aid the production of cheap electricity
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Researchers at the Israel Institute of Technology have come up with a novel way of producing cheap electricity, thanks to giant solar balloons. The balloons are covered with thin solar panals and connected via a cable to an inverter on the ground, the balloons then take to the sky. The balloons are made from a durable material, filled with helium and insulated with silicone to prevent leakage allowing them to remain airborne for as long as a year.