Reply #5: Requires a jolt of electricity to activate -- electrochromic

[toddwv]

Seems like a win for just about everybody.



"Dynamic window coatings could translate into significant energy savings in buildings, which account for more than 40 percent of carbon emissions in the United States. According to studies conducted at the National Renewable Energy Laboratory, smart window coatings could offset the use of climate control and illumination systems by up to 49 percent for air conditioning and 51 percent for lighting."