To realize even better savings, purchase grid tied panel systems. If your panels are connected, you might be able to sell extra power to the local utility. This should help you pay for your solar energy system and will also give you the option to draw power from the main grid in case your panels are not functioning.
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.
Once you buy a system, one of the first things you will notice is how quiet your solar cells are. As they draw in energy from the sun, they make absolutely no noise. This is something that most owners appreciate, as all other renewable energy sources make some noise as they operate. Particularly if you have a stressful job or a stressful life, the last thing you need is a noisy system interrupting your few moments of peace.