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| courtesy of google |
Renewable energy is important. The one is Solar energy which stored by solar panel. But, in 20th century until now, there are no inovation. So what's the matter. Check it out...
Google answer:
Solar panel installations have become increasingly popular, but the
solar panel manufacturing industry is in the doldrums because supply far
exceeds demand. The poor market may be slowing innovation, but advances
continue; judging by the mood this week at the IEEE Photovoltaics
Specialists Conference in Tampa, Fla., 