Stumbled across this article when looking up articles about Tesla's pending government loans. This is very cool (literally). I wonder if they will be affordable?
Smart Windows Open Up More Funding for SAGE Earth2Tech
Smart Windows Open Up More Funding for SAGE Earth2Tech
SAGE’s windows are made with an all-ceramic stack of thin-film coatings on a glass substrate. A low voltage of DC power can switch the windows from letting in more than 60 percent of visible light, down to less than 5 percent. The DOE has said that electrochromic windows can cut air conditioning costs by up to 20 percent per year in commercial buildings.