COLUMBUS, OH--Engineers at the Honda Research Institute here have developed a new type of battery that could replace traditional lithium-ion devices.

The University of Central Florida (UCF) is playing a leading role in modernizing America's aging power grid. It's home to the Siemens Digital Grid Lab, which features cutting-edge technology similar to what many private and public utilities use to manage the nation's power system.

Many experts tout fuel cells as one of the cleanest forms of green energy, because the devices reduce CO2 emissions and provide greater energy efficiency than combustion engines.

WASHINGTON—According to a new Energy Department report, the United States remains one of the world's leading manufacturers of wind turbines and components.

COLORADO SPRINGS, CO—SwingGreen Inc., a manufacturer of heat-recovery systems, has opened a new assembly plant here.

NEWARK, DE—Bloom Energy has begun overhauling the old Chrysler assembly plant here. When finished, the new facility will mass-produce fuel cells and employ some 1,500.