Solar Panel Cleaning
The more light that hits a solar panel, the more power it will generate. Logically, less light will penetrate dirty solar panels compared to clean ones. Also, some solar panel manufacturers and installation companies have made solar panel cleaning a condition of their warranty.
A good way to illustrate why rainwater will not clean solar panels is by thinking about a car windscreen. If you didn’t clean your windscreen for 6 months, how much visibility would you lose?
Our windscreen wipers clean the centre of the screen, but where the wipers do not reach, there is a film of dirt. Solar panels that are never cleaned will end up in the same condition as an uncleaned car windscreen would, because they are exposed to the same elements.
In summary, it’s important to clean solar panels in order to protect and maintain both your investment and your warranty.