New energy-saving windows can go from clear to dark in under a minute

Dynamic window technology has the potential to save about 20 percent in heating and cooling costs. | Illustration by: Stefani Billings

Stanford University engineers have developed dynamic windows that can switch from transparent to opaque or back again in under a minute, a significant improvement over dimming windows currently being installed to reduce cooling costs in some buildings.

The newly designed “smart” windows consist of conductive glass plates outlined with metal ions that spread out over the surface, blocking light in response to an electrical current. The results were described in a study published in the journal Joule.

“We’re excited because dynamic window technology has the potential to optimize the lighting in rooms or vehicles and save about 20 percent in heating and cooling costs,” said Michael McGehee, a professor of materials science and engineering at Stanford and senior author of the study.

 

Click here for the full article on Stanford University website!