I finally found that company and the guy who is currently working on putting wind tubines ontop of buildings in Chicago. They are small enough to not be an "eye sore" and are designed to work in the worst of storms - check it out:
Chicago Audubon Society: Aerotecture's Bil Becker Gives Presentation on Urban Wind Power Conscious Choice: Urban Wind Visionary
A company is already using a similar turbine (not sure if they're related with Pilsen or not), and it's barely noticeable:
source:
Aerotecture International - Near North SRO
Another interesting fact that I just read in a magazine is that "other" buildings (not including residential) make up for roughly 48% of our energy use, while automobiles use about 27% (residential was at 21%). Magazine is FastCompany.
