A device for power tools may also help regenerative braking.
New solar cells show gains in efficiency.
The new cells promise to be cheaper, more efficient, and even printable.
A British company is testing new chemistry that could boost the performance of batteries.
Liquid batteries, giant lasers, and vast new reserves of natural gas highlight the fundamental energy advances of the past 12 months.
Money for advanced technology is now trickling out of government coffers.
New materials harnessed hamster power, and researchers made carbon nanotubes practical.
A novel approach could turn more sunlight into electricity.
Energy-saving process uses free heat to desalinate seawater.
Cornell advance could be a first step to low-energy industrial chemical production.