It's no secret that solar energy has the power to make our world cleaner as well as make our wallets happier. However, the many ways that one can tap into solar power can become confusing at times.

Plug-in solar is rapidly expanding from Europe to the United States. As electricity prices rise, policymakers and consumers are embracing this renter-friendly technology as a path toward lower bills ...

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 ...