<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 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@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;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:2000693174;
mso-list-type:hybrid;
mso-list-template-ids:1719950420 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:38.25pt;
text-indent:-.25in;
font-family:Symbol;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></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=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I have a net metered system using six AUO Unison PM 250W modules with built in SolarBridge microinverters. It is a 1.5kW system installed in late 2011.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:38.25pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Homeowner called today saying her PV production meter (standard analog EZ read kWh meter) has gone backwards. She read 7,006 kWh on 12/21/2016 and read 7,000 kWh this morning 15 days later.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:38.25pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>She says she watches her system pretty closely and she has never seen kWh numbers that have gone backwards.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:38.25pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>The site does not get much winter production at all due to clouds, snow and low path of the sun behind a hillside - we knew all this 6 yrs ago at the site survey so little to no production during late Dec., early Jan. is not a problem.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:38.25pt'><span style='font-size:8.0pt'><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:38.25pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>My question is: Do the SolarBridge microinverters draw 16 to 20 Watts 24/7? That would account for the 6kWh usage over the 15 days assuming little to no PV production due to snow and shade.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:38.25pt'><span style='font-size:8.0pt'><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:38.25pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Other ideas?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks for the help!<o:p></o:p></p><p class=MsoNormal>Dave<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>David Palumbo <o:p></o:p></p><p class=MsoNormal>Independent Power LLC<o:p></o:p></p><p class=MsoNormal>462 Solar Way Drive<o:p></o:p></p><p class=MsoNormal>Hyde Park, VT 05655<o:p></o:p></p><p class=MsoNormal>802-371-8678 cell<o:p></o:p></p><p class=MsoNormal>802-888-4917 home<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>