A 70-pound "cheetah" robot designed by MIT researchers may soon outpace its animal counterparts in running efficiency: In treadmill tests, the researchers have found that the robot—about the size and weight of an actual ...
Thinking about buying a new plug-in vehicle? You may want to check the size of its battery first.
California is back in the running for a massive battery plant that electric car maker Tesla Motors plans to start building this year, but CEO Elon Musk said the state remains in the "improbable" category for winning the plant ...
The solar panel installer SolarCity is beginning to address one of solar power's big drawbacks: The sun doesn't always shine.
A Tesla Model S electric car caught fire this week after hitting road debris on a Tennessee freeway, the third fire in a Model S in the past five weeks.
When debris on a Seattle-area freeway pierced the battery of a $70,000-plus Tesla Model S and touched off a raging fire, it raised new safety concerns for electric-vehicle owners.
A fire that destroyed a Tesla electric car near Seattle began in the vehicle's battery pack, officials said, creating challenges for firefighters who tried to put out the flames.
Lithium-ion batteries are lightweight, fully rechargeable, and can pack a lot of energy into a small volume—making them attractive as power sources for hybrid and electric vehicles.