Take a look at the position of your home on its lot and particularly your roof. Ask the following questions:
1. Is there good southern exposure? Orienting solar modules to the south maximizes the effectiveness of energy collection.
2. Is the exposure free of trees or buildings that could shade the modules or drop debris on them?
3. What is the pitch of your roof? Most roofs, from flat to 60-degrees can accommodate photovoltaic modules.