A horizon-line of rooftop wind turbines turns the skies of the Windy City into an omnipresent source of electrical power. Installed by the Chicago-based firm Aerotecture International, the turbines give the building both a steady supply of power and a distinct appearance, visible from several blocks away.  Photo 3 of 8 in Inside Chicago’s Helmut Jahn–Designed Supportive Housing Development

Inside Chicago’s Helmut Jahn–Designed Supportive Housing Development

3 of 8

A horizon-line of rooftop wind turbines turns the skies of the Windy City into an omnipresent source of electrical power. Installed by the Chicago-based firm Aerotecture International, the turbines give the building both a steady supply of power and a distinct appearance, visible from several blocks away.