Do Solar Panels Need to be Cleaned?

Do solar panels need to be cleaned

Since solar panels are a big investment, it only makes sense to ensure you keep them in top condition.

The great thing about solar panels is that once they’re attached to your home, they require almost no maintenance.

Nonetheless, as they’re exposed to the elements, they do gather some dirt and grime. But do solar panels need to be cleaned?

Does Cleaning Solar Panels Make a Difference?

There are actually several reasons why solar panels should be cleaned:

  • Dirt lowers their efficiency. A small amount of grime on your solar panels has a minimal impact, as sunlight is able to pass through the dust. However, as dirt builds up over time, it starts to reduce the amount of light that can reach the solar panels. Various studies have looked at how much this reduces efficiency — they put the number anywhere from less than 5 percent to as much as 30 percent. Tests to increase the efficiency of solar panels have been un