Areas hard-hit by the U.S. automakers' slump are pitching themselves to green technology firms. Workers and machines that used to crank out cars are now making parts for solar and wind power plants.
At a recent solar energy conference in Anaheim, economic development officials from Ohio talked up a state that seemed far removed from the solar panels and high-tech devices that dominated the convention floor.
Ohio, long known for its smokestack auto plants and metal-bending factories, would be an ideal place for green technology companies to set up shop, they said.
"People don't traditionally think of Ohio when they think of solar," said Lisa Patt-McDaniel, director of Ohio's economic development agency. But in fact, the Rust Belt goes well with the Green Belt, she said.
For all of green tech's futuristic sheen, solar power plants and wind farms are made of much of the same stuff as automobiles: machine-stamped steel, glass and gearboxes.