An Australian solar-printing initiative has gone from printing fingernail-sized cells to ones nearly a foot wide wide, giving rise to a range of possible uses.

There’s talk of opening up some areas of Germany to fracking, but beer makers are opposed: “The water has to be pure.”

Can’t afford a Tesla Model S? With government incentives, the 2014 Chevy Spark EV can be had for well under $20,000.

A big wave power park gains full licensing, and the Scottish government enlists Carbon Trust to help commercialize the sector.

The prospects for high-altitude wind get a boost as Google acquires Makani Power, a Bay Area startup that uses tethered wings to capture big breezes.

The sun-powered Solar Impulse airplane rides downdrafts and updrafts to safely arrive in Dallas after a record-breaking 868-mile flight from Phoenix.

By a 2-1 margin, a Massachusetts town votes against spending $14 million to remove two giant wind turbines.

Speed and more energy efficient locomotives bound for Amtrak service in the Northeast begin rolling off the assembly line in Sacramento.

Awesome or a blight on the desert? See Ivanpah, near completion in the Mojave, in all its glory.

The remarkable, sun-fueled Solar Impulse airplane departs Phoenix at 4:47 this morning, headed to Dallas as its cross-country journey resumes.