I've noticed some dust on my panels. Not much. When you run your finger across them you get a tiny amount of dust on your finger.
Does anyone have any info on whether you should wash your panels down once in a while.

Thanks,
Rich
NJ

Search around on this site for more detailed answers to your query. I recall one gent from dust-bowl Oklahoma got a measured 3-4% improvement after regular panel cleaning. I'm in the south part of the SF Bay Area and I get around 6.5-7% improvement post-clean.

So, you tell me, who's really in a dust bowl - Mr Oklahoma or someone in a large urban area with millions of cars kicking up who knows what ?

-- LH