<div dir="ltr"><div>My understanding is that UL9540A documentation is required if one plans to exceed the limitations on size and quantity of ESS as well as separation distances. </div><div>The UL9540A report has to be included in the Instructions and made available to the AHJ if the IRC, IFC or NFPA855 limits are to be exceeded.</div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><span><p style="padding:5px 0px;color:rgb(36,105,100);font-size:14px;font-family:soleil,Helvetica,Arial,sans-serif;line-height:1.4rem;letter-spacing:0.04rem;font-weight:lighter!important">According to the documents on the LG website, the LGPrime series only has UL9540 for a limited number of inverters in the US - SolarEdge, SMA, Goodwe and Growatt. And they can not be used in Off-grid mode.</p><p style="padding:5px 0px;color:rgb(36,105,100);font-size:14px;font-family:soleil,Helvetica,Arial,sans-serif;line-height:1.4rem;letter-spacing:0.04rem;font-weight:lighter!important"><img src="https://viridianenergy.ca/sites/all/themes/viridian/emails/signature-line.png" style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;letter-spacing:normal"><br style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;letter-spacing:normal"></p><p style="padding:5px 0px;color:rgb(36,105,100);font-size:14px;font-family:soleil,Helvetica,Arial,sans-serif;line-height:1.4rem;letter-spacing:0.04rem;font-weight:lighter!important"><strong><span style="font-size:1.2rem">Eric Smiley,</span></strong> Project Manager<br><a href="mailto:eric@vecoop.ca" style="color:rgb(255,255,255)" target="_blank"><span style="color:rgb(0,168,133)">eric@vecoop.ca</span></a><br><a href="tel:+12507036004" style="color:rgb(255,255,255)" target="_blank"><span style="color:rgb(36,105,100)">T: 250.703.6004</span></a><br><a href="tel:+18883860116" style="color:rgb(255,255,255)" target="_blank"><span style="color:rgb(36,105,100)">T: 888.386.0116</span></a><br><strong><a href="https://viridianenergy.ca/" style="color:rgb(255,255,255)" target="_blank"><span style="color:rgb(0,168,133)">VIRIDIANENERGY.CA</span></a><strong></strong></strong></p><p style="padding:5px 0px;color:rgb(36,105,100);font-size:14px;font-family:soleil,Helvetica,Arial,sans-serif;line-height:1.4rem;letter-spacing:0.04rem;font-weight:lighter!important"><strong style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;letter-spacing:normal"><strong><a href="https://viridianenergy.ca/" target="_blank"><img src="https://viridianenergy.ca/sites/all/themes/viridian/emails/signature-footer.png"></a></strong></strong><br></p></span></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 26 Jan 2023 at 10:49, Scot Arey via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</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 class="msg245547866023809552"><div lang="EN-US" style="overflow-wrap: break-word;"><div class="m_245547866023809552WordSection1"><p class="MsoNormal">The LG Prime 16 is a battery only. 16KWH with 10KW discharge makes it a very nice match with SolarEdge 11400. There is no integrated inverter within the battery.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><img width="300" height="119" style="width: 3.125in; height: 1.2343in;" id="m_245547866023809552Picture_x0020_2" src="cid:185ef73ee7d4cff311"><u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></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>From:</b> RE-wrenches <<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>> <b>On Behalf Of </b>Dave Angelini Offgrid Solar via RE-wrenches<br><b>Sent:</b> Thursday, January 26, 2023 10:31 AM<br><b>To:</b> RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>><br><b>Cc:</b> Dave Angelini Offgrid Solar <<a href="mailto:offgridsolar@sti.net" target="_blank">offgridsolar@sti.net</a>><br><b>Subject:</b> Re: [RE-wrenches] Does anybody know if the LG Prime 16 battery has been test to UL9540A standards that would allow units to be closer than three feet apart?<u></u><u></u></p></div></div><p class="MsoNormal"><u></u> <u></u></p><div id="m_245547866023809552signature"><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif">The LG Prime is an NMC chemistry Lithium I believe. It probably needs as much protection as possible from thermal runaway as it is a definitely not as safe as LFP Lithium. I hope I am wrong but that is what I know at this time.<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif">The first system I saw that met UL9540 was the pairing of Discover AES and Schneider electronics. Others should be doing this and maybe are. The LG is an all in one battery and inverter and similar to Tesla Powerwall right?<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"><a href="https://blog.discoverbattery.com/discover-battery-aes-lifepo4-battery-certified-ul9540-for-solar-energy-storage-systems" target="_blank">https://blog.discoverbattery.com/discover-battery-aes-lifepo4-battery-certified-ul9540-for-solar-energy-storage-systems</a><u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif">I think you are right about 9540A from a quick look.<u></u><u></u></span></p><pre> <u></u><u></u></pre><pre><strong><span style="font-size:12pt;font-family:"Courier New"">Dave Angelini Offgrid Solar<u></u><u></u></span></strong></pre><pre><strong><span style="font-size:12pt;font-family:"Courier New"">"we go where powerlines don't"<u></u><u></u></span></strong></pre><pre><strong><span style="font-size:12pt;font-family:"Courier New""><a href="http://members.sti.net/offgridsolar/" target="_blank">http://members.sti.net/offgridsolar/</a><u></u><u></u></span></strong></pre><pre><strong><span style="font-size:12pt;font-family:"Courier New"">e-mail <a href="mailto:offgridsolar@sti.net" target="_blank">offgridsolar@sti.net</a><u></u><u></u></span></strong></pre><pre><strong><span style="font-size:12pt;font-family:"Courier New"">text 209 813 0060</span></strong><u></u><u></u></pre></div><p><span style="font-size:12pt;font-family:Verdana,sans-serif"><u></u> <u></u></span></p><p id="m_245547866023809552reply-intro"><span style="font-size:12pt;font-family:Verdana,sans-serif">On 2023-01-25 8:35 pm, Scot Arey via RE-wrenches wrote:<u></u><u></u></span></p><blockquote style="border-top:none;border-right:none;border-bottom:none;border-left:1.5pt solid rgb(16,16,255);padding:0in 0in 0in 5pt;margin-left:0in;margin-right:0in"><div id="m_245547866023809552replybody1"><div><div><p class="m_245547866023809552v1msonormal"><span style="font-size:12pt;font-family:Verdana,sans-serif">A new inspector asked a new question.<u></u><u></u></span></p><p class="m_245547866023809552v1msonormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"> <u></u><u></u></span></p><p class="m_245547866023809552v1msonormal"><span style="font-size:12pt;font-family:Verdana,sans-serif">From my studies tonight it looks like UL9540A is not a listing but a test standard and in fact UL has a database of batteries that have been test to the A standard which according to UL can allow (with AHJ approval) less than 3-feet separation between batteries.<br><br>The database not the easiest and LG is in there but cannot ascertain if for the Prime 16 so thought I’d share what I’ve learned and ask if others run across same.<br><br>The IRC 328 section requires UL9540. But it also requires 3-feet unless tested in fire conditions for battery to battery inducement of thermal runaway. Anybody have any insight or recommendations?<u></u><u></u></span></p><p class="m_245547866023809552v1msonormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"> <u></u><u></u></span></p><p class="m_245547866023809552v1msonormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"><img border="0" width="240" height="95" style="width: 2.5in; height: 0.9895in;" id="m_245547866023809552_x0000_i1025" src="http://RCMAP3293a2889c014a04bb1c0b62f8c779a7"></span><span style="font-size:12pt;font-family:Verdana,sans-serif"><u></u><u></u></span></p><p class="m_245547866023809552v1msonormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"> <u></u><u></u></span></p></div></div></div><p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,sans-serif"><u></u> <u></u></span></p><div><p class="MsoNormal" style="margin-bottom:12pt"><span style="font-size:12pt;font-family:"Courier New"">_______________________________________________<br>List sponsored by Redwood Alliance<br><br>Pay optional member dues here: <a href="http://re-wrenches.org" target="_blank">http://re-wrenches.org</a><br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>There are two list archives for searching. 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