<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Aptos;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-ligatures:standardcontextual;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Aptos",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-family:"Aptos",sans-serif'>Scot<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Aptos",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Aptos",sans-serif'> We had this exact same thing happen last year with a 15. Voltage swings got pretty wild. It was a bad neutral in the meter base. Older meter base that had leaked and the neutral was a bar that compressed against the back of the base. Corroded and gunked up from the years of that small leak, needed a new meter base.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Aptos",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Aptos",sans-serif'>Peter Giroux<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Aptos",sans-serif'>American Solar<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Aptos",sans-serif'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='mso-ligatures:none'>From:</span></b><span style='mso-ligatures:none'> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> <b>On Behalf Of </b>Scot Arey via RE-wrenches<br><b>Sent:</b> Thursday, September 12, 2024 8:37 PM<br><b>To:</b> 'RE-wrenches' <re-wrenches@lists.re-wrenches.org><br><b>Cc:</b> scot.arey@solarcentex.com<br><b>Subject:</b> [RE-wrenches] Sol-Ark 15KW is rock steady, but crazy wild grid voltages when connected to grid<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have Sol-Ark 15KW with 31kwh battery has been installed for year+.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Customer has for two days been having grid voltage issue seen as dimming lights. No neighbors reporting issues. He called his electrician who noted one high conductor and the other low. Have seen this before unrelated to solar and it was a bad neutral. His electrician says ok.<br><br>Customer disconnects from the grid because the fluctuations so severe and when he does, voltage issues go away and Sol-Ark is rock steady at 120-volts per leg. I send my senior tech over to ensure we don’t have a loose neutral or any grid conductors to the grid input. Nothing found.<br><br>Picture attached of grid voltages from the Sol-Ark monitoring (very helpful, I might add.)<br><br>The electric cooperative is sending a tech out tomorrow. Any body have insight or history with this?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='mso-ligatures:none'><img width=588 height=232 style='width:6.125in;height:2.4166in' id="Picture_x0020_1" src="cid:image001.png@01DB05AF.453B6E20"></span><span style='mso-ligatures:none'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>