A promising advance that came to nothing suggests what it will take to make cheap batteries for electric cars.
The former energy secretary, who has begun chasing emerging technologies again, looks back on his successes and failures in government.
A startup called SolidEnergy has developed a kind of lithium-ion battery that stores far more energy.
Researchers have found a way to augment ordinary silicon solar cells with a material called a perovskite.
Carmakers must also push out more of the cleaner vehicles to meet average fleet emissions standards.
640Labs, acquired by Monsanto, provides analytics that can help farmers increase production.
A new design for a molten-salt reactor could make nuclear power safer and more economical.
Kauai’s utility takes a second stab at battery storage as solar heads toward 80 percent of peak power.
GM revealed a concept all-electric hatchback today that it claims will have a 200-mile range.
New exploration on the bulk of Canada’s oil sands reserves can’t start unless prices are at least $60 per barrel, economists say.