Researchers discover that a material known for a hundred years could lower the cost of solar power.
If you believe Tesla, affordable, long-range electric cars could be here sooner than many think.
The history of electric cars is long and full of false starts. But it looks as if the latest wave won’t be turned back.
A project at Belkin could lead to itemized electric bills—showing how much juice your toaster or hair dryer uses.
The government’s energy research agency is spending $30 million to demonstrate cheap solar power that’s available day and night.
The chemical company BASF has found a greener way to make hydrogen, reviving hopes for fuel-cell vehicles.
Tesla Motors is pushing the limits of charging technology to make electric vehicles as practical as gas-powered cars.
A government research facility uses a megawatt-scale simulator and supercomputer to test futuristic grid technologies without disrupting today’s grid.
Aerospace companies are working on hybrid electric airplanes, and the earliest versions will likely arrive before the end of the decade.
Falling costs are making fuel-cell vehicles look like a plausible alternative to conventional cars.