The fast-growing company has snagged an aerospace exec to replace current CEO Mike Ahearn. First Solar has a new CEO and he's not from the solar business.

It’s the first day of school for corporate America when it comes to environmental and carbon accounting, say execs from HP, Sony, Applied Materials and other companies...

The San Carlos, Calif.-based electric-car startup says it is ready to deliver on its original promise of acceleration from 0 to 60 mph in "about four seconds." It has now delivered 27 Roadsters to customers.

At a Dow Jones conference, the head of BP's wind and solar business says money for funding renewable-energy projects has dried up. He also thinks wind-turbine makers should focus on developing technologies, not farms.

Green Energy Technology and the Nordic Environment Finance Corp. through its Carbon Fund are boosting investments in China, pointing to the country's growing role as maker and user of renewable energy technologies.