Forbes contributors publish independent expert analyses and insights. Dianne Plummer is an Energy Consultant and Certified Energy Manager. Rooftop solar has become one of the fastest-growing clean ...

Plug-in solar has remained in the shadows because of a lack of safety standards and often costly requirements imposed by utilities, but that’s changing.

As energy costs continue to rise, you might be looking for a way to save money on power in the long-term. Solar panels can deliver savings over time, but they aren't cheap to get installed. When you ...