Designed by students at the University of Arizona, these turbines are able to harvest the wind generated by cars passing by. Like the giant windmills that dot the deserts, the highway turbines can turn the air into energy.

Estimates say that the turbines can create about 9,600 kWh per year. That would be great for powering traffic signals and other devices around the road.

Archinect [via AutoblogGreen via Gizmodo]