It even has a small moon.

What if you could harness the power of the sun to generate your own energy—right in your backyard? Imagine a system so efficient it could heat water, power small appliances, or even serve as a backup ...

The US needs a lot more electricity fast, and one company thinks robots can help build it quicker. Berkeley, California-based Terabase Energy says its next-gen Terafab automated solar construction ...