Solar power has an efficiency problem. When the electrons move from the solar panel to the battery that stores them, about 20 percent of the energy is lost. But now, thanks to new type of solar cell, nearly 100 percent of the energy is stored. That's because the solar cell itself is the battery.
via Gizmodo http://ift.tt/1rIrkjN http://ift.tt/1xKNkiN
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