Dave
So funny, thanks for the smile. Have had installers tell me it is ok to walk on panels and I thought they were asking for trouble. We recommend a soft brush ( home depot sells one that goes on an extendable pole ) dawn detergent and a hose. Here in the south the pollen wreaks havoc on panels, just bakes on and coats the glass. Just simple cleaning and production #’s jump right back up. Peter Giroux ASAE From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of Dave Angelini Offgrid Solar via RE-wrenches Sent: Monday, October 23, 2023 11:29 AM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Cc: Dave Angelini Offgrid Solar <offgridso...@sti.net> Subject: Re: [RE-wrenches] Cleaning PV mods Definitely heard stories and have seen a few insurance claims for cracked glass. I have had clients send me pictures of "solar" guys walking on the panels on their roof. I guess it is OK to do this if you change your business name every 5 years😉 Dave Angelini Offgrid Solar "we go where powerlines don't" <http://members.sti.net/offgridsolar/> <https://offgridsolar1.com/> https://offgridsolar1.com/ <http://members.sti.net/offgridsolar/> e-mail offgridso...@sti.net <mailto:offgridso...@sti.net> text 209 813 0060 On 2023-10-23 6:44 am, White, Will via RE-wrenches wrote: I worked with a guy who had done installs in Arizona. He had an off-grid customer spray down their array with cold well water in the middle of the day, which shattered the module glass. I'm sure it was an isolated incident, but it happened. Thanks, Will From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of Jason Szumlanski via RE-wrenches Sent: Friday, October 20, 2023 4:47 PM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Cc: Jason Szumlanski <ja...@floridasolardesigngroup.com> Subject: [EXTERNAL] Re: [RE-wrenches] Cleaning PV mods CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. I don't understand the thermal shock nonsense. It routinely starts downpouring here when it's blazing hot out (sun showers) and the rain is way cooler than ground water in summer. It makes no sense. If hose water from the ground is going to hurt solar panels, you better not put them where it rains! I replied privately to Dana, but for the benefit of the group, it takes a heavy soiling to make any appreciable difference. I have done numerous tests at times of high pollen and found little to no benefit to cleaning solar panels. Certainly it would not be worth paying someone to do it. Other climates may have different results. My suggestion would be to test first. Module level power electronics can provide incontrovertible proof. Jason On Fri, Oct 20, 2023, 4:21 PM Dave Tedeyan via RE-wrenches <re-wrenches@lists.re-wrenches.org <mailto:re-wrenches@lists.re-wrenches.org> > wrote: Hi Dana, See attached from REC. I would imagine these guidelines would apply to all modules. Cheers, Dave On Fri, Oct 20, 2023 at 3:56 PM Dana Orzel via RE-wrenches <re-wrenches@lists.re-wrenches.org <mailto:re-wrenches@lists.re-wrenches.org> > wrote: Hey ally 'all, Ok bad solar installer! 7 years & I have never cleaned my modules & live on a dirt road. Yeah rain does a good job with the dust but there is a film mostly on the edges. What does everyone do for cleaning? My array is 16'+ tall on a hill side. I have a pressure washer & was going to pick up a large sponge type mop & mount it on a painters extension pole. Good Biodegradable cleaning solutions? _________________________________________________________ Dana Orzel GREAT SOLAR WORKS! 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