The automaker plans to begin rolling out a test fleet of fuel-cell cars, but some experts say it's a mistake.
A semiconductor material with three energy bands uses more sunlight, by trapping low-energy photons.
Panelists at the Emerging Technologies Conference voiced an urgent need for aggressive policies to promote energy efficiency, renewable power sources, and carbon sequestration.
MIT researchers are developing low-cost manufacturing methods based on the rapid reproduction of viruses. Angela Belcher, a panelist at the Emerging Technology Conference, explains.
Hydrogen may never be feasible as a fuel for vehicles, but BMW is pushing ahead anyway with an advanced hydrogen-gas combustion hybrid.
This power system could make it feasible to generate cheap electricity from lukewarm geothermal sources.
Thin-film technology is still expensive, but it could soon run remote sensors and medical implants--and one day electric vehicles.
Adding a chemical found in antifreeze to fuel cells could provide a longer-lasting alternative to batteries in portable electronics.
Not everyone gets a solar cell named after them: but Michael Gratzel did. He says his novel technology, which promises electricity-generating windows and low manufacturing costs, is ready for the market.
Technology has taken oil exploration to new depths--and found a huge reserve.