Windows that automatically change color to reduce heating and cooling bills are the next step of smart buildings.
South Korean scientists just got a lot closer to automating them.
About a third of the energy consumed by buildings goes out the window. So efforts to reduce energy use in homes and offices have naturally focused on windows, with varying success.
Read more: www.fastcompany.com/1784221/smart-glass-grows-clear-when-cold-and-dark-when-warm-saving-heating-and-cooling-costs