Can Solar Power Be Cheap?

Fact 1: The primary ingredient of most solar panels is purified sand. Fact 2: Enough sunlight hits the Earth in an hour to provide all of humanity's energy needs for a year. So why isn't... -- Read more on ScientificAmerican.com
Source: Scientific American Topic - Nanotechnology - Category: Nanotechnology Tags: Energy & Sustainability,Physics,Energy Technology,Alternative Energy Technology,Green Living,Energy Technology,Environment,Alternative Energy Technology Source Type: news