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.
Avoid stepping on solar panels, unless you really need to. These can cost you quite a bit of money, so they need to be kept in great condition. The most fragile part is typically the end of each panel, so avoid that area.