Post up your Dirtiest solar panel pics

Show us the dirtiest solar panel pics you have come across.

These are so bad that they are white colored on the surface. I think it is some sort of mold or something. I have only seen this once. The solar panel monitoring service called the customer to let them know they needed to come out and take a look because their solar productivity had dropped dramatically.

Mettler Maintenance WC

Great at contrast before and after.

Hera is another good one I found in the archives. I was real happy that she did not ask me to clean the gutters. They were completely full with pigeon poop. One of the few gutter cleanings I just would not du or should I say du du.

randy, do you prefer hoghair or nylon bristle or just depends?

i have been finding hoghair to work quicker and more thoroughly lately

The problem I have with the hogs hair brush is that you have to lift it off the panels to get a good clean rinse. I prefer a Monofillament brush because you do not have to lift it off the panels for the final rinse.

I will share a free tip for cleaning those really dirty solar panels. Instead of wasting time with Relatively lower pressure DI water, hook up to tap water first with a quick connect. Pre treat them with a soap if you like, but do the main cleaning with tap water ( lots if natural pressure) . Then for final polish / rinse use DI water

Eric Mettler
Mettler Maintenance Window Cleaning
Central Coast, California

here’s a solar panel in a bikini. i guess it’s more naughty than it is dirty. anyway, that’s the best i got.

I like the way it looks

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Are those panels really curved?

No for some reason just Turned out that way

Sent from my SCH-I605 using Window Cleaning Resource mobile app