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<pre><span style="font-size: 12pt;">Definitely heard stories and</span> <span style="font-size: 12pt;">have seen a few insurance claims for cracked glass. <br />I have had clients send me pictures of "solar" guys walking on the panels on their roof.<br /><br />I guess it is OK to do this if you change your business name every 5 years😉</span></pre>
<pre><strong><span style="font-size: small;">Dave Angelini Offgrid Solar
"we go where powerlines don't"
<a href="http://members.sti.net/offgridsolar/" rel="noopener"> </a><a style="color: blue; font-size: 11px; font-family: 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif; font-weight: 400; background-color: #ffffff;" href="https://offgridsolar1.com/" rel="noopener noreferrer"><span style="font-size: 12pt;">https://offgridsolar1.com/</span></a><a href="http://members.sti.net/offgridsolar/" rel="noopener"> </a>
e-mail <a href="mailto:offgridsolar@sti.net">offgridsolar@sti.net</a>
text 209 813 0060</span></strong></pre>
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<p id="reply-intro">On 2023-10-23 6:44 am, White, Will via RE-wrenches wrote:</p>
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<p class="v1MsoNormal">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.</p>
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<p class="v1MsoNormal">I'm sure it was an isolated incident, but it happened.</p>
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<p class="v1MsoNormal">Thanks,</p>
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<p class="v1MsoNormal"><strong>From:</strong> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> <strong>On Behalf Of </strong>Jason Szumlanski via RE-wrenches<br /><strong>Sent:</strong> Friday, October 20, 2023 4:47 PM<br /><strong>To:</strong> RE-wrenches <re-wrenches@lists.re-wrenches.org><br /><strong>Cc:</strong> Jason Szumlanski <jason@floridasolardesigngroup.com><br /><strong>Subject:</strong> [EXTERNAL] Re: [RE-wrenches] Cleaning PV mods</p>
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<p class="v1MsoNormal">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! </p>
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<p class="v1MsoNormal">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.</p>
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<p class="v1MsoNormal">Jason</p>
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<p class="v1MsoNormal">On Fri, Oct 20, 2023, 4:21 PM Dave Tedeyan via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer">re-wrenches@lists.re-wrenches.org</a>> wrote:</p>
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<p class="v1MsoNormal">Hi Dana, </p>
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<p class="v1MsoNormal">See attached from REC. I would imagine these guidelines would apply to all modules.</p>
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<p class="v1MsoNormal">Cheers,</p>
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<p class="v1MsoNormal">Dave</p>
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<p class="v1MsoNormal">On Fri, Oct 20, 2023 at 3:56 PM Dana Orzel via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer">re-wrenches@lists.re-wrenches.org</a>> wrote:</p>
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<p class="v1MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-size: 14.0pt; font-family: 'Century Gothic',sans-serif;">Hey ally 'all,</span></p>
<p class="v1MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-size: 14.0pt; font-family: 'Century Gothic',sans-serif;"> </span></p>
<p class="v1MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-size: 14.0pt; font-family: 'Century Gothic',sans-serif;">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.</span></p>
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<p class="v1MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-size: 14.0pt; font-family: 'Century Gothic',sans-serif;">What does everyone do for cleaning?</span></p>
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<p class="v1MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-size: 14.0pt; font-family: 'Century Gothic',sans-serif;">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. </span></p>
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<p class="v1MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;"><span style="font-size: 14.0pt; font-family: 'Century Gothic',sans-serif;">Good Biodegradable cleaning solutions?</span></p>
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<p class="v1MsoNormal"><strong><span style="font-family: 'Arial',sans-serif; color: #ecbd00;">Dave Tedeyan, P.E.<br />Owner | Sungineer Solar</span></strong><span style="font-family: 'Arial',sans-serif;"></span></p>
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