Now getting a watt of energy out of a solar panel is one. How about getting 400 watts of output? Yup, a company called Cool Earth Solar is making solar balloons that can harvest 400 times the energy compared to conventional solar cells. These “solar concentrators” focus energy using the curved shape of the balloon on to a solar cell. What this means is that a lot more sunlight gets concentrated on to a solar cell compared to regular solar power plants. The balloon is made out of cheap or even free materials like plastic, aluminium and filled with regular air. Now lets start creating megawatts of energy alright?

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