[KaiserPro]

how do you clean it?

Sand and crap is going to blow across that and I don't see a practical way to get it off.

I'm not sure those panels are rated for people walking across them, so robots?

I can imagine that moss/algae is going to be a problem, as it start growing in the corners where all the dust gets trapped and is kept moist.

[slyall]

They have a little robot that cleans it every night. Watch the video on their website.

https://www.erthos.com/