29/07/2026
Rain definitely helps wash away some loose dust and pollen, but it doesn’t remove everything.
Things like bird droppings, lichen, moss, pollution, sticky grime and mineral deposits can remain on the surface and build up over time. That’s why we often find panels that still need cleaning, even after months of rain.
What’s your opinion? Do you think rain keeps solar panels clean? Let us know in the comments. 👇