Plug-in solar panels can be fitted to balconies, walls and gardens, but safe installation depends on the right location, permissions and connection method.

Government regulations remain a major obstacle for this emerging solar technology. Here's where plug-in solar is allowed - and where it isn't.

Plug-in solar systems are an alternative to large, professionally installed rooftop solar. The US regulatory system for utilities wasn't built for plug-and-play solar setups, so it's taking time for ...