How do I know if my roof is good for solar? There are a few factors that determine how great a roof will be for solar, whether you are interested in NetMetering, pool or a battery system. Roof surfaces which face south do best, but we often install on other surfaces as well, and the systems do very well. We use a solar Pathfinder to examine how much shade falls on your roof in different areas throughout the year. We then use this information to determine how much electricity your array will produce each year. Get in touch with us and we can do a free assessment of your roof online.