30 Under 30: America's Coolest Young Entrepreneurs

Shawn Frayne, Humdinger Wind
Courtesy of Humdinger Wind Energy
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No. 25 Shawn Frayne, Humdinger Wind Energy

Age: 28
Locations: Honolulu, Hawaii and Hong Kong, China
2008 Revenue: Undisclosed
2009 Projected Revenue: Undisclosed
Employees: 6
Founded: 2007
Website: www.humdingerwind.com

What he does: Makes a small device that can capture energy on bridges, skyscrapers, and other urban areas where traditional wind turbines will not fit