Electric vehicle

Piranha is an unmanned vessel that's an unheard of 400 percent more fuel efficient than similar models.

11 | April 20, 2011 12:58am | By Tuan C. Nguyen

Tesla's Model S beta was impressive, but analysts are more focused on the company's ability to ramp its production facility.

3 | October 3, 2011 12:12pm | By Larry Dignan

Forget the Tesla and the Chevy Volt -- the spider is electric too, and it can walk.

May 20, 2010 5:45pm | By Deborah Gage

Sony hopes that 'smart sockets' could become a way to regulate energy use in the future.

1 | February 16, 2012 7:56am | By Charlie Osborne

As smart grids continue to grow, the required investment in management systems will reach billions by 2020.

May 15, 2012 5:17am | By Charlie Osborne

Former California governor Arnold Schwarzenegger called for an end to political gridlock on clean energy and urged lawmakers to see the green revolution as a common interest.

19 | March 2, 2011 7:06am | By Andrew Nusca

A new kind of vending machine mocks consumerism and allows users to swap items for free.

2 | January 20, 2012 3:15am | By Charlie Osborne

Researchers from Imperial College London and Volvo are developing a prototype material that's strong and light enough to be used as a car's skin but can store and discharge electrical energy.

4 | February 11, 2010 10:56am | By Andrew Nusca

Sustainability initiatives help ensure waste is reused. The plant also now generates $2 million annually in recycling revenue.

November 30, 2011 9:57am | By Heather Clancy

More reflections on how cars - and trains - will continue to improve environmentally, and on how they could all become one transportation system, from Ford Motor's former top engineer.

9 | May 9, 2012 5:06am | By Mark Halper

The Ion Tiger drone, powered by hydrogen fuel cells and developed by the Office of Naval Research, set an electric plane (yes, plane, not train) endurance record last month when it stayed aloft...

6 | November 23, 2009 10:19am | By John Dodge

High-performance automaker Porsche said it plans to unveil a hybrid version of its 911 GT3 R race car at the Geneva Motor Show in March.

2 | February 18, 2010 9:26am | By Andrew Nusca

Who cares about man made climate change, when you can have employment?

2 | July 25, 2012 9:30am | By Mark Halper

SmartPlanet caught up with Prescott Logan, general manager of GE Energy Storage, to find out the story behind the company's new Durathon battery.

2 | July 23, 2012 3:00am | By Kirsten Korosec

For the past decade, 95% of the world's rare-metals -- needed for wind turbines, hybrid cars, computer batteries, medical imaging devices, and smartphones -- have been extracted in China. Now,...

6 | June 19, 2011 8:49am | By Joe McKendrick

Closing L.A.'s busiest interstate improved air quality by 83 percent.

17 | October 1, 2012 6:33am | By Tyler Falk

Prior to last week, the highest altitude a jetpack has soared was roughly 50 feet. Since then, that mark has been bested by, oh, 4,950 feet.

13 | June 2, 2011 8:54am | By Tuan C. Nguyen

Fares are on the rise in New York City.

5 | July 14, 2012 8:14pm | By Claire Lambrecht

Stephen Gold mixes modern tech with good old-fashioned volunteerism. He spends his Earth days sending solar care packages to far-flung scientists studying some of the world's most endangered...

4 | April 22, 2010 4:00am | By Melissa Mahony

Investors are showing growing interest in initial public offerings by cleantech companies. Nineteen are on deck for 2010 -- here are 10 more to watch.

April 16, 2010 4:42am | By Andrew Nusca