<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Has any one tried insulating the back side of the solar module?
I know normally that would be a really bad idea, but if the system
was over designed in the summer, and flat on the wall, you could
get away with it. That dark surface under the glass with 2" of
foam board backing would probably get warm enough to shed at least
some of the build up, when the sun came out. I've seen solar
thermal systems go to almost 300 degrees F with air temps below
freezing.<br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 12/1/18 4:27 PM, Michael Morningstar
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:DADE41CF-4ACE-4BAC-B01C-0375D333B7BE@gmail.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Bill,
<div class="">I\u2019ve installed dozens of mountain top systems
starting just North of you, and spreading from the coast to the
Nevada border and up into Central Oregon. Fire lookouts,
Repeaters, Cell towers, ect\u2026. Cascade and Coastal Cement. I
count on arrays at 60 degrees getting entombed in snow and ice
for weeks. I\u2019ve seen the walls of most buildings encased in ice
too! Lookouts get shut down for six months, and maybe minimal
loads stay on, like weather equipment. When full time power is
required, then propane or diesel generators and room heaters are
installed, often tandem generators that alternate usage and act
as backups. Many of my previous customers required a rapid
response if there was a power failure and that meant serious
adventure. I\u2019m kind of over it now, many of those clients
technicians also take care of the power end of things.</div>
<div class="">Michael</div>
<div class=""><br class="">
</div>
<div class="">
<div>
<blockquote type="cite" class="">
<div class="">On Dec 1, 2018, at 2:18 PM, Sam Haraldson <<a
href="mailto:sam@onsiteenergyinc.com" class=""
moz-do-not-send="true">sam@onsiteenergyinc.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div dir="ltr" class="">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">However,
even if vertical, will Sierra snow (its a special
breed) still <br class="">
wind-pack on, stay for weeks, days, not at all?
This site is on the <br class="">
Pacific crest at 7,000 ft.<br class="">
</blockquote>
<div class=""><br class="">
</div>
</div>
<div class="">Yes, the "Sierra cement" is not the same
as the "cold smoke" snow we get in my part of the
country but I see that snow tends to pretty easily
slough off arrays that are at and above the 35 deg
angle. Even the wettest Sierra stuff sure doesn't
seem like it could stick to glass at a 90 degree
angle. I suspect you could get away with 60 deg, have
better production, and still shed the snow. </div>
<div class=""><br class="">
</div>
-- <br class="">
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr" class="">Sam Haraldson, Installation
Manager<br class="">
<a href="http://onsiteenergyinc.com/"
target="_blank" class="" moz-do-not-send="true">onsiteenergyinc.com</a></div>
</div>
</div>
_______________________________________________<br
class="">
List sponsored by Redwood Alliance<br class="">
<br class="">
List Address: <a
href="mailto:RE-wrenches@lists.re-wrenches.org" class=""
moz-do-not-send="true">RE-wrenches@lists.re-wrenches.org</a><br
class="">
<br class="">
Change listserver email address & settings:<br
class="">
<a
href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org"
class="" moz-do-not-send="true">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br
class="">
<br class="">
List-Archive:
<a class="moz-txt-link-freetext" href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a><br
class="">
<br class="">
List rules & etiquette:<br class="">
<a class="moz-txt-link-abbreviated" href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><br class="">
<br class="">
Check out or update participant bios:<br class="">
<a class="moz-txt-link-abbreviated" href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a><br class="">
<br class="">
</div>
</blockquote>
</div>
<br class="">
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
List sponsored by Redwood Alliance
List Address: <a class="moz-txt-link-abbreviated" href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a>
Change listserver email address & settings:
<a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>
List-Archive: <a class="moz-txt-link-freetext" href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a>
List rules & etiquette:
<a class="moz-txt-link-abbreviated" href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a>
Check out or update participant bios:
<a class="moz-txt-link-abbreviated" href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a>
</pre>
</blockquote>
</body>
</html>