U.S. Department of Energy's Photovoltaic Guide
Are you thinking about buying a solar electric system for your home or business? If so, this booklet provides some basic information that can help you.
Solar electric systems, which are also called photovoltaic or PV systems, are reliable and pollution-free. They make use of a renewable source of energy— the sun. And PV systems for homes and businesses are becoming more affordable all the time.