Add Yahoo as a preferred source to see more of our stories on Google. EnergySage As Richard Zagame builds his newest home, he's thinking about more than just today's needs. The veteran contractor ...

Solar panels use a scientific concept called the photovoltaic effect to turn sunlight into electricity. Here's a deep dive into how it all works. You've probably wondered what kind of magic in solar ...

If you connect your panels to the grid, you won't be responsible for producing all your own energy. That's not the case if you go off the grid. Going solar doesn't mean going off the grid -- unless ...

Plug-in solar panels, small photovoltaic units designed to connect directly to a household outlet, are gaining attention as ...