Solar Panel cleaning is absolutely paramount if you want to maintain the efficiency of your solar panels. In fact, most solar panels work on what is called a ‘String Inverter’ concept.
This means that your solar panels are installed on a string, and what this means is that your solar panels will only work as efficiently as the lowest performing panel, therefore, even just one dirty solar panel can affect all of the other solar panels on the property, or at the very least that array.
This is why solar panel cleaning is an essential part of solar panel maintenance, and should be done on a regular basis.
If you have noticed that your solar panels are producing less, then a good place to start would be to look at them to see if they are dirty and need a clean