http://news.bbc.co.uk/2/hi/technology/10276652.stm
PLease Paste above article to read news about solar powered windows.
I found it interesting that the author analyzed how plants absorb and convert sunlight into clorophyll to invent windows that collect solar energy and convert it into electricity. He says that it will generate electricity both from the outside light and from any lighting inside the building as well without interfering with people seeing either in or out of the window.
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