It is common for systems to produce more energy than a home consumes. This happens during the day when no one is home. However, it is uncommon for systems to be sized to produce more energy than you will consume over the course of a year. If you produce more energy than you consume on an annual basis, you will be compensated in different ways depending on the state policies in place. We do not recommend that you install a system that will produce more than 100 percent of your energy consumption, because you are often compensated for the excess electricity at a lower wholesale rate.