With enough investment, geothermal power could satisfy 10 percent of the US energy diet, energy experts say.
Column: Tom Regan rolls through the year’s clever devices and creative decisions
It will be the 24th leap second since 1972, keeping clocks in sync with Earth’s rotation.
The Tesla Roadster, launched in 2007 in the US, entered the European market this year. Here is a look at the car:
But environmentalists worry that an expanded grid will help carry more dirty power.
New designs could power some remote areas by 2012.
Musicians turn to new software to teach and collaborate over the Internet.
An electric meter with Internet access is being tested in Germany. The new device offers possibilities for cost control.
Websites help runners keep track of the miles they run.
Sprint Nextel and Clearwire, in a joint venture, plan to develop a mobile network based on WiMax technology, promising faster speeds than the latest cellular networks.
Buildings gobble up 40 percent of America's energy. A new tool allows people watch their power diets.