In just one hour, the earth catches enough solar energy to power the world for a year. Big solar farms, home installations and increasingly efficient solar cells are slowly, but surely, converting more and more of the sun’s energy into electricity every year. And some of the poorest people, living in the most remote villages have helped usher in this new era of solar power.

In this episode, you'll hear how Calvin Fuller’s difficult childhood and adolescent interest in explosives catalyzed the invention of the first silicon solar cell. Then Bob Freling explains how witnessing the installation of a solar panel in a remote Chinese village changed his life forever.