The solar panel of the future?
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Is this the solar panel of the future?

Researchers in Switzerland are looking to develop a solar panel that can push out twice the energy of existing standard roof panels

Researchers in Switzerland are looking to develop a solar panel that can push out twice the energy of existing standard roof panels.

The increase in efficiency could mean a rooftop system paying for itself in five years and turn solar energy into a major player.

BBC Click's Dan Simmons went to find out more.

More at BBC.com/Click and @BBCClick.