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

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 ...

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 ...