If you want to have a solar system installed on your roof, make sure you check the credentials of anyone working on your home. Check certifications, verify references and generally research the company prior to signing any contract. This is a big investment, so make sure that you choose a reputable company.
Many solar systems require little or no maintenance to operate smoothly throughout the year, but you should have them service occasionally. Dirt, leaves and dust can accumulate and reduce the amount of power that your system can produce. Have a licensed installer come out regularly to preform maintenance on your system.
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If after installing solar panels you find that you are producing more energy than you need, you can sell the extra energy that you produce back to the electric company. This method will help you recoup the cost of your solar energy system's installation and parts. Additionally, after you have recovered your costs, you will be making a profit.