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@jblue

So, if you outfitted all the windows with these, AND used PV panels on the other available surfaces, you could get much more than 25% of the building's power needs purely from solar, interesting.

This would be ideal in certain places where skies are more often clear, of course, but this could save a whole lot of money in the long term, and reduce aerosol pollution. Cool.

I would like to see electric cars with a PV roof, and these things for windows.