Solar panels are rapidly growing in popularity, and it's obvious why this is the case. Solar energy is not only a cleaner source of energy, but it can save the homeowner a lot of money over the years. While the initial investment is a little pricey, the panels will pay themselves off in no time. However, you will need occasional solar maintenance in order for the panels to continue to work at their optimum potential. Here is a list of three reasons you need to service your solar panel system once a year.