The Elf Trike: A tricycle with a solar-powered battery boost

PORTLAND, Ore. -- It's a bright idea for a cycle-loving city such as Portland: a tricycle that's powered by both pedals and the sun.

A North Carolina company called Organic Transit has created what it calls "Elf Trikes." They're part tricycle and part motorized vehicle. When you hit a hill, you can flip a switch and the solar-powered battery can help you zoom along at 30 mph.

"It's made in the U.S.A. and it really promotes healthy commuters, more livable cities, more local economy as well as allowing individuals to participate in a cleaner, healthier climate," said Organic Transit owner Rob Cotter.

The Elf also has a top to protect riders from the elements. Cotter wants to build a production plant and open a retail store in Portland.