Forbes contributors publish independent expert analyses and insights. Dianne Plummer is an Energy Consultant and Certified Energy Manager. Rooftop solar has become one of the fastest-growing clean ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Solar is no longer just a way to trim your utility bill; for many homeowners it is a serious contender to keep the lights on when the grid goes dark. Whether panels can truly stand in for a gas or ...

Solar power has quietly pulled ahead of coal and gas in Germany’s electricity mix, even though the country is better known ...

Meet the surprising, oddball worlds moving around our solar system. From meteorites that impact Earth, to a moon that orbits backwards, to an imposter lurking in the asteroid belt, a variety of ...