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 ...

Lopsie Schwartz was looking for ways to lower her energy bill when the solar panel salesman knocked on her door in Northridge. Already a believer in green power, she didn’t take much convincing. But ...

We live in an exciting time with respect to electrical power, one in which it has never been easier to break free from mains electricity, and low-frequency AC power in general. A confluence of ...