Solar panels generally require very little maintenance since there are no moving parts. A few times a year, the panels should be inspected for any dirt or debris that may collect on them. Always make sure you are safety conscious when inspecting panels and don’t take any needless risks! If your panels are too high up on the roof to see very well from the ground, use caution with ladders.
For a general cleaning, simply use a standard garden hose to wash the face of the panels during either the early morning or in the evening. Avoid spraying cold water onto hot panels or you could risk cracking them!
There are also automated cleaners that work similar to sprinklers, such as the Heliotex system, which can be programmed to clean your panels as needed – a good choice if you are in an especially dusty area.
Maintainence : Solar panels generally require very little maintenance. They are very durable and should last around 25-30 years with no maintenance. The only maintenance you should need to perform is to wash them clean of dirt and dust two to four times a year, which you can easily do with a garden hose.