New rooftops in France to go green

Rooftops on new buildings built in commercial zones in France must either be partially covered in plants or solar panels, under a law approved on Thursday.

Feeling smug about your solar rooftop? Not so fast

If you installed solar panels on your roof and feel aglow with environmental virtue, you may be in for a rude awakening. There's a good chance someone else has purchased your halo and is wearing it right now.

How solar panels are making waves

If you think of electrical current flowing like water from the grid to your home, you can start to imagine the waves your rooftop solar panels create when they try feeding current in the opposite direction.

Toward a smarter grid

Steven Low, professor of computer science and electrical engineering at Caltech, says we are on the cusp of a historic transformation—a restructuring of the energy system similar to the reimagining and revamping that the ...

Inventor pushes solar panels for roads, highways

(AP)—The solar panels that Idaho inventor Scott Brusaw has built aren't meant for rooftops. They are meant for roads, driveways, parking lots and, eventually, highways.

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