More than a dozen states are considering legislation to support small solar energy systems that can plug directly into home ...

For years, solar power at home was mostly limited to people who owned their rooftops and could afford the steep upfront costs. But now, a new generation of small, affordable systems — often called ...

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 ...

Australian solar buyers are moving beyond bargain installs, choosing right-sized systems designed around real energy use, ...

Solar changes how air conditioning should be sized. Learn how to match cooling capacity with rooftop generation to stay ...