<div dir="ltr">Hi Brad,<br><div><br></div><div>I have heard that the selling from the Midnite charge controllers doesn't work real well. There is a MNSI comm box so it may be the best way (certainly the cheapest). Does anyone have experience with this scenario, good or bad?</div><div><br></div><div>Thanks for your input as always</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Feb 18, 2019 at 8:27 AM Bradley Bassett <<a href="mailto:bbassett2@gmail.com">bbassett2@gmail.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 dir="ltr"><div>I think you can leave it DC coupled and enable grid tie in the Sunny Island inverters. It might not be quite as efficient but a lot more cost effective. If you don't already have it Midnite makes a comm box that makes the Classic look like an SMA device. That might be helpful to coordinate MPPT and grid tie.<br></div><div><br></div><div>Brad<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Feb 18, 2019 at 5:19 AM Mac Lewis <<a href="mailto:maclewis1@gmail.com" target="_blank">maclewis1@gmail.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 dir="ltr">Hello Wrenches,,<div><div><br></div><div>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><a href="https://files.sma.de/dl/7910/SB-OffGrid-TI-US-en-19.pdf" target="_blank">https://files.sma.de/dl/7910/SB-OffGrid-TI-US-en-19.pdf</a></div><div><br></div><div>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>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><br></div><div>Thanks for your assistance</div><div><br></div>-- <br><div dir="ltr" class="gmail-m_5762377754409523248gmail-m_8859024066426421094gmail_signature"><div><br></div><div><font face="'times new roman', serif" color="#305A78"><br></font></div><div><br></div>Mac Lewis<br><br><span style="font-family:"Times New Roman";font-size:medium;color:rgb(255,153,0)"><b><font size="3" face="Arial, Helvetica, sans-serif"><p align="left"><font face="Verdana, Arial, Helvetica, sans-serif" color="#000000"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="'times new roman', serif">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="'times new roman', serif">-Sócrates</font></span></span></span></font></p></font></b></span></div></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div><br></div><div><font color="#305A78" face="'times new roman', serif"><br></font></div><div><br></div>Mac Lewis<br><br><span style="font-family:"Times New Roman";font-size:medium;color:rgb(255,153,0)"><b><font face="Arial, Helvetica, sans-serif" size="3"><p align="left"><font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="'times new roman', serif">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="'times new roman', serif">-Sócrates</font></span></span></span></font></p></font></b></span></div>