Researchers and scientists are putting on endless effort to make the sources of energy clean and green. There are many devices in the market that run on solar energy. The alternative energy atmosphere is charged with anticipation and excitement. But till now one of the biggest dampeners in green energy scenario is the prices. Fossil fuels are available cheaply all over the world. But solar, wind, geothermal or biofuels are still expensive and out of reach of commoners.
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