Some upgrades are simply cheaper to do while your solar system is being installed than they are to add later. We've got prime ...

PHOENIX — Arizona State University plans to spread solar panels across the rooftops of its sprawling Tempe campus, creating the largest solar array at an American university, school officials said.

A solar panel installation in your home can bring all sorts of benefits: lower electric bills, a smaller carbon footprint and even raising the value of your home. But what if your house is surrounded ...