Never had any problem with soap and water in the 3 fires that went over us. Obviously you want to not do anything in the sun. It is just tempered glass so as long as the cleaner is compatible, I would not be worried about something stronger if soap did not work. Still alot of fire season left. Two weeks after the last rain is the new guide for fire season. Good Luck!
Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ [1] e-mail [email protected] [2] text 209 813 0060 On Thu, 16 Sep 2021 13:20:09 -0700, Bill Battagin wrote: Dan, I remember reading some REC material regarding cleaning panels and they we very hesitant about anything brush or sponge-like to clean their PVs, though I too, for my own arrays have used a car-washing brush (very fine and soft) to carefully remove scum. It seems it may be the only method for getting off hard-core crud. Bill On 9/16/2021 1:08 PM, Dan Fink wrote: Bill; Similar situation in my area (CO) from the big fire that went through here last fall. Some had enough water onsite for the sprinkler trick, but the biggest issue was thick coats of pink fire retardant from the slurry bombers. The only thing I could find that worked on both the ash/mineral scum and the pink slurry was.....dish soap and soft scrub brush. And LOTS of brushing, 3-4 times over all my PV arrays. I was hesitant to try anything stronger, like Simple Green, and tried to get info on that and other chemicals from a couple PV module manufacturers, with no success. Good luck! Dan Fink Owner, Buckville Energy Consulting LLC IREC Certified Instructor for PV and Small Wind Installation NABCEP Certified PV System Inspector NABCEP PV Associate d [3][email protected] [4] 970-672-4342 On Thu, Sep 16, 2021 at 1:49 PM Bill Battagin wrote: Dearest wrenches, Trying to get back in the saddle here in the Plumas Natl. Forest...We are just coming out of 7-8 weeks of threat of fire from the Dixie fire in NE CA....has been life changing, three of our communities were lost or severely impacted. But many of my customers did the old "sprinkler on the roof" trick and left for evacuation so much ash and (well)water on panels for weeks at a time. Depending on a variety of factors some folks have not been able to see the PVs clean up with a simple water spray and I've been very hesitant to recommend anything like soap, soft brushing etc. Will the eventual several inches of rain remove ash and minerals left from well water?, its pretty backed on. I'm looking for proven suggestions and/or experiences. No structure loss here but fire took part of our trees/property. Of course some of the system arrays are easy access and some are on two story roofs. Thanks, Bill Feather River Solar Electric Taylorsville, CA _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org [6] List Address: [email protected] [7] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [8] There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ [9] http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [10] List rules height: 29px;" src="https://webmail.sti.net/tuxedo/?_task=mail&_action=display-attachment&_file=rcmfile11631829514011576100"; alt="" width="46" height="29" /> [13] Virus-free. www.avast.com [14] Links: ------ [1] http://members.sti.net/offgridsolar/ [2] mailto:[email protected] [3] mailto:[email protected] [4] mailto:[email protected] [5] mailto:[email protected] [6] http://re-wrenches.org [7] mailto:[email protected] [8] http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [9] https://www.mail-archive.com/[email protected]/ [10] http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [11] http://www.re-wrenches.org/etiquette.htm [12] http://www.members.re-wrenches.org [13] https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon [14] https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link
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