Cleaning Solar Panels

Q: I've been pretty much leaving it up to the rain to keep the solar panels clean. I swish off debris like leaves with a soft brush but that's all so far. (I'm not too fond of crawling around on the roof.) Should I be doing anything else? How delicate are they? Thanks for any and all advise.

A: The controller for our solar panels displays the amperage going to the batteries. Firstly, thank you, all, for replying. Secondly, I think I'll climb up there and have the hose passed up to me so I can rinse them. I may use a bathtub scrubber for stubborn dirt. It's a shower puff on a long handle. I cracked one trying to be too tidy ... I now leave it up to the rain and wind.

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