Today, solar is replacing electricity generated from coal as well as from natural gas. It is replacing kerosene lamps and diesel generators in places where people lack access to the power grid, true for more than a billion people around the world. While society grapples with electricity’s pollution in some places and its absence in others, the mysterious waves and particles of the sun’s light continuously strike the surface of the planet with an energy more than ten thousand times the world’s total use.
