Utilities are installing devices that make ice at night to replace air-conditioning during times of peak power demand.
A layer of optical fiber bristles doubles the performance of organic solar cells in tests.
Levant Power saves fuel by turning road shocks and vibrations into electricity.
The DOE accounts for its spending of stimulus funding.
New material could cut the use of expensive platinum by 80 percent.
The disaster exposes overreliance on blowout preventers that has been long disparaged by insiders.
Approval of Cape Wind could signal a boon in offshore wind projects.
Large investment could jump-start concentrated photovoltaic deployments.
Belkin buys Zensi, which makes sensors to track domestic energy and water usage.
A Caltech group has created materials that could improve the efficiency of solar cells.