Flexible, efficient solar cells will make solar power cheaper.
Japan plans to stop leaking radioactive groundwater at Fukushima with an underground wall of ice. Here's how it would work.
ARPA-E says better sensors and controls could allow automakers to cut battery size by 20 to 50 percent.
Researchers in Switzerland propose an ultra-efficient hybrid electric vehicle that runs on natural gas and diesel.
Five years after the last IPCC report warning about the dangers of climate change, we’re emitting more carbon dioxide than ever.
A startup says its technical advances could make fuel cells as cheap as grid power.
President Obama must focus on getting other nations to cut their emissions.
General Atomics has applied for DOE funds to commercialize a nuclear reactor that could lower electricity costs by 40 percent.
Some neighborhood grids just aren’t built for huge spikes in power demand. The rise of the electric car has utilities scrambling to adjust.
Modifying a gene in plants makes it far easier to process biomass to make fuel.