Before installing solar panels on your roof, check with your home owners association. Some associations have restrictions on what you are allowed to do to the outside of the property, and this might mean solar panels are not an option for you. It is better to have this information up front than to purchase the panels and be forced to remove them at a later time.
Your solar energy system needs to be exposed to the sun at all times. Most homeowners have their solar panels installed on their roof but you could also have some panels installed on your front lawn. Do not hesitate to cut a few trees to avoid shadows and have a professional help you determine the best place for your panels.