Maybe an application of Rain-x to the modules would help. Of course not on anything with a topical anti-reflective surface. Sent from my 'smart' phone so please excuse spelling and typos. ------ Original message------From: frenergyDate: Sat, Dec 1, 2018 1:20 PMTo: re-wrenches@lists.re-wrenches.org;Cc: Subject:[RE-wrenches] Vertical PVs for Comm site Sierra wrenches,
My 30 years of installation has never included comm sites on mountain tops but I took the job..... I am proposing mounting PVs vertically towards the top of the south wall of a 2 story block building to avoid snow build-up. I assume a pole-mount would be next in line if we needed more sq ft of PV. However, even if vertical, will Sierra snow (its a special breed) still wind-pack on, stay for weeks, days, not at all? This site is on the Pacific crest at 7,000 ft. And then due to potential temps down to -30F, I assume a WELL insulated battery box (maybe even back-up heat?). It seems the best choice would be to use AGM/VRLA/Gel? Part my reason for looking for help is my customer's loads will only be 12 volt and wants to avoid the cost of an inverter. This seems a little risky not to have an inverter/charger for back-up. Appreciate the advice. Bill Feather River Solar Electric Bill Battagin, Owner 4291 Nelson St. Taylorsville, CA 95983 530.284.7849 CA Lic 874049 www.frenergy.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
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