<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Mac having installed quite a few of these and having the SMA SIs installed and operating in my home, ( back up & off grid/ GT) please feel free to contact me off list. I would strongly concur w/ Bradly w/ his suggesting you utilize the dc coupling. Tump<br class=""><div><blockquote type="cite" class=""><div class="">On Feb 18, 2019, at 8:19 AM, Mac Lewis <<a href="mailto:maclewis1@gmail.com" class="">maclewis1@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hello Wrenches,,<div class=""><div class=""><br class=""></div><div class="">We have been asked to take an SMA Sunny Island System that is off-grid, and convert it to a backup system (Quad stack). Currently, this is a DC coupled system using Midnite charge controllers. We would like to add SMA grid-tied inverters to backfeed excess power. I have located this document:</div><div class=""><a href="https://files.sma.de/dl/7910/SB-OffGrid-TI-US-en-19.pdf" class="">https://files.sma.de/dl/7910/SB-OffGrid-TI-US-en-19.pdf</a></div><div class=""><br class=""></div><div class="">According to this document, there really isn't Sunny Boy inverters available that can function as a backup for a system like this. Is this true? </div><div class="">Do you know of any distributors that may have stock of the SB XXXXTLUS-12 line of inverters that would work for this.</div><div class=""><br class=""></div><div class="">Thanks for your assistance</div><div class=""><br class=""></div>-- <br class=""><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div class=""><br class=""></div><div class=""><font color="#305A78" face="'times new roman', serif" class=""><br class=""></font></div><div class=""><br class=""></div>Mac Lewis<br class=""><br class=""><span style="font-family: 'Times New Roman'; font-size: inherit; color: rgb(255, 153, 0);" class=""><b class=""><font face="Arial, Helvetica, sans-serif" size="3" class=""><p align="left" class=""><font face="Verdana, Arial, Helvetica, sans-serif" class=""><span style="font-size:small" class=""><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)" class=""><font face="'times new roman', serif" class="">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)" class=""><font face="'times new roman', serif" class="">-Sócrates</font></span></span></span></font></p></font></b></span></div></div></div>
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