>> Chadians could go hungry despite bumper crops, notes an

a new solar panel unveiled by Georgia Tech Research Institute in Atlanta in April 2007 promises to produce about 60 times more electricity than traditional solar cells. The new cells are smaller

A few years ago, Shaktipada Jena, a small farmer could dream of buying a home solar power system. He'd have to stretch his means to save between Rs 3,100 and Rs 4,800, the going rate. But now prices

Last year Microsoft outfitted its campus in Silicon Valley with a solar system from Sun-Power, a local company that makes high-efficiency (and, some say, the world's best-looking) solar panels. A few months later Microsoft's arch-rival, Google, began building something on an even grander scale-one of the largest corporate solar installations to date. But all of this may yet be topped by Wal-Mart.