Homeowners are increasingly deciding that it makes more sense to hold on to that excess power from home solar for themselves.

Should You Wait for the Next Solar Breakthrough? Perovskite solar cells could achieve 35% efficiency and cost half as much as silicon, but they remain years away from being available for residential ...

Two years ago, California slashed one of the best incentives for people to install new rooftop solar systems. Now regulators might cut the benefit retroactively, too. Before they do, they should ask ...

Understanding solar panel capacity tells you how much power you can create and how fast you can do it—in the right conditions.

If you rewind the clock fifteen or twenty years, residential solar energy was a tough sell. The systems were incredibly expensive, wildly inefficient, and—let’s be brutally honest—they were usually an ...