Cleaning your solar panels: is it even necessary? Your solar panels need to be exposed to sunlight in order to produce power. However, unless you live somewhere with high amounts of smog, dust, dirt or sand blowing around, solar panel cleaning is generally not necessary.

When should you clean solar panels?

So, a good rule of thumb is to arrange for a cleaning at least every six months, possibly more if you feel the panels are constantly getting dirty. If there isn't much of an issue, then one cleaning every six months should be more than enough.

Does cleaning your solar panels make a difference?

Dirt on solar panels usually has very little effect on their performance. ... Cleaning in addition to what is done naturally by rain will boost panel output, since on average they will have even less dirt on them, but it doesn't help much.