<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:"Franklin Gothic Medium";
panose-1:2 11 6 3 2 1 2 2 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:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@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">
<div class="WordSection1">
<p class="MsoNormal">Crazy talk! (and I mean that in the most positive way!)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If you set up everything perfectly, I don’t reckon the solar gain would track
<i>perfectly</i> with the heat output of the inverter however… if you think of this window oriented to match the PV array panels, they are making some juice (and waste heat) when there isn’t a “direct solar gain” but they’re still getting energy when the sun
is out of the line of sight. I imagine there’s some degree of “standby” power / heat gain as well when the PV panels are asleep at night.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Still set up well it could be a decent & quick stand-in for a more laborious 8760 schedule calculation to crunch and push into the model.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Once upon a time I lamented that transformers losses specified at the meter in eQUEST can’t be attributed to a space/zone… Didn’t foresee this potential application as I was focused on quantifying “premium efficiency” transformer savings,
but alas I suspect that feature remains on the back burner.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#3A7A46"><img width="726" height="9" style="width:7.5625in;height:.0937in" id="Picture_x0020_1" src="cid:image001.png@01D2937C.5F1F99E0"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><span style="color:#3A7A46"><o:p></o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="724" style="width:543.0pt;border-collapse:collapse">
<tbody>
<tr>
<td width="230" valign="top" style="width:172.3pt;padding:0in 0in 0in 0in">
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Senior Energy Engineer</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Regional Energy Engineering Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy and Sustainability Services</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Schneider Electric</span><span style="color:#1F497D"><o:p></o:p></span></p>
</td>
<td width="291" valign="top" style="width:218.3pt;padding:0in 0in 0in 0in">
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">D </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">913.564.6361
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">M </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">785.410.3317
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">F </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">913.564.6380</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">E </span><span style="color:#1F497D"><a href="mailto:nicholas.caton@schneider-electric.com"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">nicholas.caton@schneider-electric.com</span></a><o:p></o:p></span></p>
</td>
<td width="203" valign="top" style="width:152.4pt;padding:0in 0in 0in 0in">
<p class="MsoNormal" align="right" style="text-align:right"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">15200 Santa Fe Trail Drive<br>
Suite 204<br>
Lenexa, KS 66219<br>
United States</span><span style="color:#1F497D"><o:p></o:p></span></p>
</td>
</tr>
<tr style="height:4.0pt">
<td width="724" colspan="3" valign="top" style="width:543.0pt;padding:0in 0in 0in 0in;height:4.0pt">
<p class="MsoNormal" style="mso-line-height-alt:4.0pt"><span style="color:#3A7A46"><img border="0" width="722" height="49" style="width:7.5208in;height:.5104in" id="_x0000_i1028" src="cid:image002.png@01D2937C.5F1F99E0"><!--[if gte mso 9]><xml>
<o:OLEObject Type="Embed" ProgID="PBrush" ShapeID="_x0000_i1028" DrawAspect="Content" ObjectID="_1549982084">
</o:OLEObject>
</xml><![endif]--><o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Bishop, Bill via Equest-users<br>
<b>Sent:</b> Friday, February 24, 2017 11:50 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] PV inverter heat?<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m working on a small net-positive-energy project in New York and considering all low-energy options for heating the building. It will have a PV system and I’d like to model waste heat from the inverter to consider putting it indoors.
The waste heat would be a sensible heat gain that varied with solar radiation. (The greater the solar radiation, the higher the PV output and the more waste heat off the inverter, on the order of 400 watts for an 8 kW system.) I’m thinking of modeling the
inverter as a south-facing window since heat gain to the space would vary with solar radiation. The trick would be to zero out as much as possible the window thermal conductance or make it equal to the outside wall value.<o:p></o:p></p>
<p class="MsoNormal">Thoughts?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">~Bill<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black">William Bishop, PE, BEMP, BEAP, CEM, LEED AP
</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:#006600">|</span></b><b><span style="font-size:10.0pt;font-family:"Franklin Gothic Medium",sans-serif;color:black"> Pathfinder Engineers & Architects LLP<o:p></o:p></span></b></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="526" style="width:394.8pt;border-collapse:collapse">
<tbody>
<tr style="height:13.45pt">
<td width="345" style="width:258.45pt;padding:0in 5.4pt 0in 5.4pt;height:13.45pt">
<p class="MsoNormal" style="line-height:105%"><b><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black">Senior Energy Engineer<o:p></o:p></span></b></p>
</td>
<td width="182" rowspan="6" style="width:136.35pt;padding:0in 5.4pt 0in 5.4pt;height:13.45pt">
<p class="MsoNormal" style="line-height:105%"><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black"><img border="0" width="56" height="38" style="width:.5833in;height:.3958in" id="Picture_x0020_4" src="cid:image004.jpg@01D2937C.FFDDA7F0">
<img border="0" width="46" height="39" style="width:.4791in;height:.4062in" id="Picture_x0020_2" src="cid:image006.jpg@01D2937C.FFDDA7F0"><o:p></o:p></span></p>
</td>
</tr>
<tr style="height:4.55pt">
<td width="345" valign="top" style="width:258.45pt;padding:0in 5.4pt 0in 5.4pt;height:4.55pt">
<p class="MsoNormal" style="line-height:105%"><span style="font-size:5.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
</td>
</tr>
<tr style="height:9.8pt">
<td width="345" nowrap="" valign="bottom" style="width:258.45pt;padding:0in 5.4pt 0in 5.4pt;height:9.8pt">
<p class="MsoNormal" style="line-height:105%"><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#1F497D">134 South Fitzhugh Street</span><span style="font-size:9.0pt;line-height:105%;color:#1F497D">
</span><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#1F497D">Rochester, NY 14608<o:p></o:p></span></p>
</td>
</tr>
<tr style="height:12.4pt">
<td width="345" valign="top" style="width:258.45pt;padding:0in 5.4pt 0in 5.4pt;height:12.4pt">
<p class="MsoNormal" style="line-height:105%"><b><i><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#002060">T: (585) 698-1956</span><span style="color:#002060">
</span></i></b><span style="color:#1F497D"> </span><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:#1F497D">F: (585) 325-6005</span><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
</td>
</tr>
<tr style="height:9.8pt">
<td width="345" valign="top" style="width:258.45pt;padding:0in 5.4pt 0in 5.4pt;height:9.8pt">
<p class="MsoNormal" style="line-height:105%"><a href="mailto:wbishop@pathfinder-ea.com"><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:blue">bbishop@pathfinder-ea.com</span></a><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:black">
</span><a href="http://www.pathfinder-ea.com/"><span style="font-size:9.0pt;line-height:105%;font-family:"Arial",sans-serif;color:blue">www.pathfinder-ea.com</span></a><span style="color:#1F497D"><o:p></o:p></span></p>
</td>
</tr>
<tr style="height:24.6pt">
<td width="345" valign="top" style="width:258.45pt;padding:0in 5.4pt 0in 5.4pt;height:24.6pt">
<p class="MsoNormal" style="margin-top:3.0pt;line-height:105%"><img border="0" width="34" height="32" style="width:.3541in;height:.3333in" id="Picture_x0020_5" src="cid:image008.png@01D2937C.FFDDA7F0" alt="http://png-5.findicons.com/files/icons/977/rrze/720/globe.png"><span style="font-size:7.5pt;line-height:105%;color:#00B0F0">Carbon
Fee and Dividend - simple, effective, and market-based.</span><span style="color:#1F497D"><o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
______________________________________________________________________<br>
This email has been scanned by the Symantec Email Security.cloud service.<br>
______________________________________________________________________<o:p></o:p></span></p>
</div>
</body>
</html>