<div dir="ltr"><div>Not to add fuel to the fire... and it's been almost 7 years since I've been with an Inverter manufacturer so here is my .02 cents... So again, I hope I'm not overstepping the boundaries of the Wrenches list. </div><div><br></div>If I remember correctly the main issue with the high altitude installs are some of the components that are used to build the inverter/controllers aren't rated to be used at high altitude, one of the main components that have this issue is the electrolytic capacitors. Of course, the specs vary from component to component. I've seen some rated as low as 8000 ft to some as rated as high as 30,000 ft. It really just depends on the part(s) that the manufacturer used to build the product. <div><br></div><div>As you gain altitude the temperatures and the air pressure decrease, as it was explained to me years ago the problem is with the temperature decrease, this will affect the capacitance of the capacitor. The colder temps will reduce the overall capacitance of the capacitor, just like it will with a battery. <br><br>These caps are generally used to filter noise from circuits, so when these fail, or the capacitance values fall, you don't get the filtering you need and this induces noise into your circuitry possibly causing overall failure or worse, the dreaded intermittent failure. Generally, if the inverters/controllers are kept on and warm, you won't have too many problems, it's when they are in extremely cold temperatures is when you will start having issues. </div><div><br></div><div>Hope this helps! Have a good weekend! <br></div><div><div><br></div><div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div style="float:left;padding:1px 10px 0 0"><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"></a><a href="http://www.rollsbattery.com" target="_blank"><img src="https://i.imgur.com/uXcqgyz.png" alt="" style="padding:3px 0px 0px 10px;float:left;margin-right:10px;width:98px;height:115px"></a><div style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:14px;line-height:20px;font-family:Arial,Helvetica,sans-serif;margin:0px"><font color="#bb1a1d">Steve Higgins \u22c5 </font><span style="color:rgb(64,64,64);font-size:12px">Technical Services Manager</span>
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Any unauthorized review, distribution or other use of or the taking of any action in reliance upon this information is prohibited. If you receive this email in error, please contact the sender and delete or destroy this message and all copies.</span></div><hr></div><table></table></div></div></div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 12, 2019 at 7:47 AM <<a href="mailto:chris@oasismontana.com">chris@oasismontana.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="white" lang="EN-US"><div class="gmail-m_-7579772214336359982WordSection1"><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext">Folks:<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext"><u></u> <u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext">The issue here ulltimately isn\u2019t whether it works or not, it\u2019s if it\u2019s WARRANTED.<span> </span>Some purchasers (in this case the USFS) mandate that all equipment be warranted for high altitudes.<span> </span>And that leaves out several major suppliers.<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext"><u></u> <u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext"><u></u> <u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext">Chris Daum<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext">Oasis Montana Inc.<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext"><u></u> <u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext"><u></u> <u></u></span></font></p><div><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0in 0in"><p class="MsoNormal"><b><font size="2" color="black" face="Calibri"><span style="font-size:11pt;color:windowtext;font-weight:bold">From:</span></font></b><font color="black"><span style="color:windowtext"> RE-wrenches <<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>> <b><span style="font-weight:bold">On Behalf Of </span></b>Ray<br><b><span style="font-weight:bold">Sent:</span></b> Thursday, April 11, 2019 10:55 PM<br><b><span style="font-weight:bold">To:</span></b> <a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a><br><b><span style="font-weight:bold">Subject:</span></b> Re: [RE-wrenches] High altitude off-grid systems<u></u><u></u></span></font></p></div></div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><u></u> <u></u></span></font></p><p><font size="2" color="black" face="Calibri"><span style="font-size:11pt">We've had some systems at 11,000 ft plus, for almost 20 years. We have mixtures of Outback, Midnite, Blue Sky, and old Trace equipment. Never any issues with electronics related to altitude. Actually the altitude related system issues are generator derating, and array output exceeding STC ratings on really clear cold days due to the thin atmosphere. The third issue would be installers not being able to catch our breath after jogging back to the truck. <u></u><u></u></span></font></p><pre><font size="2" color="black" face="Courier New"><span style="font-size:10pt">Ray Walters<u></u><u></u></span></font></pre><pre><font size="2" color="black" face="Courier New"><span style="font-size:10pt">Remote Solar<u></u><u></u></span></font></pre><pre><font size="2" color="black" face="Courier New"><span style="font-size:10pt">303 505-8760<u></u><u></u></span></font></pre><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">On 4/11/19 3:39 PM, Dan Fink wrote:<u></u><u></u></span></font></p></div><blockquote style="margin-top:5pt;margin-bottom:5pt"><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">Hi Chris; I am deeply concerned about this as nearly 100% of the systems I install are at 8000 ft (2500m) or higher. I've never had a problem with warranty claims to Outback or Schneider up to this time. If this is a "new thing" I'd really like to know about it, on list or off. <u></u><u></u></span></font></p><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><u></u> <u></u></span></font></p></div><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">The alitude de-rate stuff seems to involve dialectric ratings on the transformer coils, and low air density for cooling. I think that's all in ANSI.<u></u><u></u></span></font></p></div><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><u></u> <u></u></span></font></p></div><div><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><br clear="all"><u></u><u></u></span></font></p><div><div><div><div><div><div><div><div><div><div><div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34);border:1pt none windowtext;padding:0in">Dan Fink</span></font><font size="3"><span style="font-size:12pt"><u></u><u></u></span></font></p></div><div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">Director of Solar Education, Greendustrial Training LLC<u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">IREC Certified Instructor\u2122 for: <u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">~ PV Installation Professional<u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">~ Small Wind Installer<u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">NABCEP PV Associate<u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">Executive Director, Buckville Energy Consulting<u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">NABCEP Registered Continuing Education Providers<u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)"><a href="mailto:dan.fink@greendustrialtraining.com" target="_blank">dan.fink@greendustrialtraining.com</a><u></u><u></u></span></font></p></div><div><p class="MsoNormal" style="vertical-align:baseline"><font size="2" color="#222222" face="Arial"><span style="font-size:9.5pt;font-family:Arial,sans-serif;color:rgb(34,34,34)">970-672-4342<u></u><u></u></span></font></p></div></div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><br> <u></u><u></u></span></font></p></div></div></div></div></div></div></div></div></div></div></div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><u></u> <u></u></span></font></p></div></div></div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><u></u> <u></u></span></font></p><div><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">On Thu, Apr 11, 2019 at 1:28 PM <<a href="mailto:chris@oasismontana.com" target="_blank">chris@oasismontana.com</a>> wrote:<u></u><u></u></span></font></p></div><blockquote style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in"><div><div><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">Hi folks:<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"> <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">I am curious as to how many of you sell/install battery/inverter systems at high altitudes? Have you had any particular issues with them? Last year we discovered (in a mostly costly fashion) that Schneider inverters (and also Outback) are not warranted above 6500 ft. <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"> <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">Magnum inverters are warranted to 15,000 ft max altitude. <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"> <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">Best,<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"> <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">Chris Daum<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">Oasis Montana Inc.<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">406-777-4309 or 4321<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt">406-777-4309 fax<u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"><a href="http://www.oasismontana.com" target="_blank"><font color="#0563c1"><span style="color:rgb(5,99,193)">www.oasismontana.com</span></font></a> <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"> <u></u><u></u></span></font></p><p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11pt"> <u></u><u></u></span></font></p></div></div><p class="MsoNormal" 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