I knew my solar panels (and by extension, my trailer) were filthy from gazing down on them during a ferry passage at the beginning of the month. So this morning I cleaned the panels using windshield washer fluid and a squeegee on an extension pole, while standing on a ladder. I checked my battery monitor before and after and it appears that I'm getting 1/3 more amps coming in than when the panels were dirty.
I cleaned them quickly as to avoid attracting the attention of a park ranger, so the sun moved less than five degrees in the sky. I think most of the increase in charging amps was from the cleaning. So boondockers-- clean your panels!
Thanks Mike. I've wondered about using 303 on the solar panel to help prevent the inevitable hazing that seems to appear over time on panels as they age. I think the 303 anti-UV might slightly reduce solar pass thru the surface but might be worth the trade- off long term with helping to prevent the hazing. Thought from any of our solar gurus?
Eric (and Mary who is in no way responsible for anything stupid I post)
"Beware of false knowledge; it is more dangerous than ignorance." George Bernard Shaw
Why would a park ranger make you feel like a criminal for cleaning your solar panel?
Some campgrounds prohibit washing RVs. A ranger might see me standing on a ladder with cleaning implements and think that is what I was doing, or not bother to distinguish between washing a trailer and cleaning its rooftop panels, officialdom being what it is. I was just playing it safe.