Solar panels can only generate electricity; they can’t store it, so you must pair them with a stand-alone battery bank or a power station. For home emergency power (for a few hours of power), we ...

Small, plug-in solar power systems have become popular in Germany and several other countries. So why haven’t they taken off in the United States? By Claire Brown Across Germany, more than a million ...

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...