<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Wow how much snow did that?<div><br></div><div>Jay<br><div><br><div><br></div><div><br></div><div><br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Dec 6, 2024, at 9:26\u202fAM, Todd Cory via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:</div><br class="Apple-interchange-newline"><div><meta charset="UTF-8"><font face="georgia" size="2" style="caret-color: rgb(0, 0, 0); font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0px; padding: 0px; font-family: georgia; font-size: 10pt; overflow-wrap: break-word;">Yes, in deep snow country tall pole mounts can be expensive... especially with enough room below so the sliding snow never meets the bottom edge of the array. My home system has 5 pole mounts with the bottom edges ~6' above the ground.<span class="Apple-converted-space"> </span><br><br>Now that engineering is mandated, this adds more expense to ensure sure the foundation can support the mechanical forces of this configuration. But shallow angle roof mounts risk having the bottom edge of the modules get ripped off (see attached picture) so here in the Mount Shasta area, this is the only thing that works.<br><br>There was a thread where people were experimenting with reverse biasing modules to cause them to generate heat. I think boB was working on some kind of possibility for a charge controller option to do this, but I am not sure where that went.<br><br>Todd<br><br><br><span id="cid:img-0.jpg@1733502384.0694"><img-0.jpg></span><br><br><br><br></div><div style="margin: 0px; padding: 0px; font-family: georgia; font-size: 10pt; overflow-wrap: break-word;">On Thursday, December 5, 2024 5:49pm, "Howie Michaelson via RE-wrenches" <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> said:<br><br></div><div id="SafeStyles1733500191"><div>Todd, <div>In general that had been my philosophy, but sometimes pole mounts are just logistically to difficult/ expensive - especially large ones. In general, if it is a windy location, the snow doesn't stick around that long. However, even pole mounts at a steep angle can get encrusted and if it doesn't get warm enough or sunny, that can stick on the panels for a week or more. I've never considered anything like heat panels or tape, but if there is something that works that doesn't harm the panels, then it might be a decent option in some cases. </div><div>Howie</div></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Thu, Dec 5, 2024, 5:15\u202fPM Todd Cory via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:</div><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div style="margin: 0px; padding: 0px; font-family: georgia; font-size: 10pt;">Passive works best. In big snow country here, I learned the hard way to only do pole mounts... and set the angle steep in the winter. The snow slides off and all is fine.<br><br>Todd<br><br><br><br><br></div><div style="margin: 0px; padding: 0px; font-family: georgia; font-size: 10pt;">On Thursday, December 5, 2024 1:01pm, "Kirk Herander via RE-wrenches" <<a rel="noreferrer" href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> said:<br><br></div><div id="m_2044037087436129766SafeStyles1733436785"><div><div><a rel="noreferrer" href="https://glasscareexperts.com/solar-glass-protection/" target="_blank">https://glasscareexperts.com/solar-glass-protection/</a></div>I\u2019ve never tried it but just heard about these people. From the bio they are the original makers of rain X, but they customized a product, several of them, to clean Pv panels and they also mentioned it can help to shed rain and snow.</div><div>By the way, Rainx is not approved for such an application.</div><div><br><div><div class="gmail_signature" dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div style="padding: 0px; font-family: Arial; font-size: 16px; margin: 0in 0in 0.0001pt;"><span style="font-size: 10pt; font-family: Arial;"><a rel="noreferrer" name="m_2044037087436129766_SignatureSanitizer__MailAutoSig" style="font-family: Arial;"></a><strong style="font-family: Arial;">Kirk Herander / </strong><strong style="font-family: Arial;"><a title="Send an email to kirkh@vermont.solar; Send an email to kirkh@vermont.solar" rel="noreferrer" href="mailto:kirkh@vermont.solar" target="_blank" style="font-family: Arial; color: blue;">kirkh@vermont.solar</a></strong></span></div><div style="padding: 0px; font-family: Arial; font-size: 16px; margin: 0in 0in 0.0001pt;"><span style="font-size: 10pt; font-family: Arial;"><strong style="font-family: Arial;">Owner|Principal, VT Solar, LLC</strong></span></div><div style="padding: 0px; font-family: Arial; font-size: 16px; margin: 0in 0in 0.0001pt;"><span style="font-size: 10pt; font-family: Arial;"><strong style="font-family: Arial;"><em style="font-family: Arial;">Celebrating our 33<sup style="font-family: Arial;">st</sup> Anniversary 1991-2024!!</em></strong></span></div><div style="padding: 0px; font-family: Arial; font-size: 16px; margin: 0in 0in 0.0001pt;"><span style="font-size: 10pt; font-family: Arial;">dba Vermont Solar Engineering</span></div><div style="padding: 0px; font-family: Arial; font-size: 16px; margin: 0in 0in 0.0001pt;"><span style="font-size: 10pt; font-family: Arial;">802.559.1225</span></div></div></div></div></div><div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Thu, Dec 5, 2024 at 2:19\u202fPM Howie Michaelson via RE-wrenches <<a rel="noreferrer" href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:</div><blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left-width: 1px; border-left-style: solid; border-left-color: rgb(204, 204, 204); padding-left: 1ex;"><div dir="ltr"><div><div class="gmail_default" style="font-family: verdana, sans-serif;">Has anyone successfully used heat panels or cables to melt iced-over panels (ie. without damaging the panels)? In heavy snow country, or over periods of freeze/thaw when pelty slushy snow sticks and freezes to panels, it would be nice to have a safe method of clearing them, especially off-grid. I remember discussions of the futility of backfeeding panels to heat them up to accomplish the same, but not about heat tape or pans that might be worth trying.</div><div class="gmail_default" style="font-family: verdana, sans-serif;">Thanks,</div>Howie Michaelson</div><div><div class="gmail_default" style="font-family: verdana, sans-serif;">Sun Catcher</div></div></div>_______________________________________________<br>List sponsored by Redwood Alliance<br><br>Pay optional member dues here:<span class="Apple-converted-space"> </span><a rel="noreferrer noreferrer" href="http://re-wrenches.org/" target="_blank">http://re-wrenches.org</a><br><br>List Address:<span class="Apple-converted-space"> </span><a rel="noreferrer" href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & settings:<br><a rel="noreferrer noreferrer" href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>There are two list archives for searching. 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