Less than one percent of the 10, 000 small wind turbines sold last year in the United States were of Pelman's rooftop variety.

CNN: Stimulus may get small wind turbines spinning

Pelman hopes to produce competitive amounts of electricity by capturing slower, more erratic winds, such as those blowing between tall buildings or across roofs.

CNN: Stimulus may get small wind turbines spinning

San Francisco entrepreneur Todd Pelman has founded a small start-up company called Blue Green Pacific, which produces a corkscrew-shaped, roof-mounted turbine that is still in the development phase.

CNN: Stimulus may get small wind turbines spinning