<p dir="ltr">Kevin, <br>
My experience with inverter based kilowatt hour readings is that they are always optimistic. My experience with SolarEdge shows the SolarEdge kilowatt hour reading runs about 2 percent higher then the utility grade meter. I have found similar discrepancies with SMA , Fronius and other inverter manufacturers.</p>
<p dir="ltr">Carl Adams<br>
President, SunRock Solar<br>
mobile 513.290.9072</p>
<div class="gmail_quote">On May 22, 2015 8:39 PM, "frenergy" <<a href="mailto:frenergy@psln.com">frenergy@psln.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
<div bgcolor="#ffffff">
<div>Hopefully there tech department can shed some light on this for you,
however, it would certainly be to SolarEdge's benefit to appear to be producing
more power than it really is, well, unless, Hmmmm ..........</div>
<div> </div>
<div>Bill</div>
<div> </div>
<blockquote style="PADDING-RIGHT:0px;PADDING-LEFT:5px;MARGIN-LEFT:5px;BORDER-LEFT:#000000 2px solid;MARGIN-RIGHT:0px">
<div style="FONT:10pt arial">----- Original Message ----- </div>
<div style="BACKGROUND:#e4e4e4;FONT:10pt arial"><b>From:</b>
<a title="Jarmo.Venalainen@schneider-electric.com" href="mailto:Jarmo.Venalainen@schneider-electric.com" target="_blank">Jarmo.Venalainen@schneider-electric.com</a>
</div>
<div style="FONT:10pt arial"><b>To:</b> <a title="re-wrenches@lists.re-wrenches.org" href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches</a> </div>
<div style="FONT:10pt arial"><b>Sent:</b> Friday, May 22, 2015 4:00 PM</div>
<div style="FONT:10pt arial"><b>Subject:</b> Re: [RE-wrenches] Discrepency
between inverter kWH reading andsolar production meter</div>
<div><br></div><font face="sans-serif" size="2">Hi:</font> <br><br><font face="sans-serif" size="2">The difference is in the accuracy of revenue grade
versus inverter KWh meters. Revenue grade is typically much more
accurate.</font> <br><br><font face="sans-serif" size="2">Beyond that, even if the
accuracy of both was really good at lets say +/- 0.5%, you could still get a
1% overall difference in readings as one could be +0.5% and other -0.5%, even
though they are both working to spec.</font> <br><br><font face="sans-serif" size="2">JARMO<br></font><font color="#008000" size="3">_____________________________________________________________________________________</font><font size="3"> <br></font><font face="Arial" size="1"><b><br>Jarmo Venalainen</b> |
</font><font face="Arial" color="#008000" size="1"><b> Schneider Electric
</b></font><font face="Arial" size="1"><b> | Xantrex Brand</b> |
<b>CANADA</b> | <b>Sales Application Engineer</b>
<b><br>Phone:</b> <a href="tel:%2B604-422-2528" value="+6044222528" target="_blank">+604-422-2528</a> | <b>Tech Support:</b>
<a href="tel:800-670-0707" value="+18006700707" target="_blank">800-670-0707</a> | <b>Mobile:</b> <a href="tel:%2B604-505-0291" value="+6045050291" target="_blank">+604-505-0291</a> <b><br>Email:</b>
</font><a href="mailto:jarmo.venalainen@schneider-electric.com" target="_blank"><font face="Arial" color="blue" size="1"><u>jarmo.venalainen@schneider-electric.com</u></font></a><font face="Arial" size="1"> | <b>Site:</b></font><a href="http://www.xantrex.com/" target="_blank"><font face="Arial" color="blue" size="1"><u> www.Xantrex.com</u></font></a><font face="Arial" size="1"> |
<b>Address:</b> 3700 Gilmore Way, Burnaby, BC V5G4M1 <br></font>
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<td><font face="sans-serif" color="#5f5f5f" size="1">From:</font>
<td><font face="sans-serif" size="1">Kevin Eigel
<<a href="mailto:kevin@ecohousesolar.com" target="_blank">kevin@ecohousesolar.com</a>></font>
<tr valign="top">
<td><font face="sans-serif" color="#5f5f5f" size="1">To:</font>
<td><font face="sans-serif" size="1">RE-wrenches
<<a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a>>, </font>
<tr valign="top">
<td><font face="sans-serif" color="#5f5f5f" size="1">Date:</font>
<td><font face="sans-serif" size="1">05/22/2015 02:38 PM</font>
<tr valign="top">
<td><font face="sans-serif" color="#5f5f5f" size="1">Subject:</font>
<td><font face="sans-serif" size="1">[RE-wrenches] Discrepency between
inverter kWH reading and solar production
meter</font>
<tr valign="top">
<td><font face="sans-serif" color="#5f5f5f" size="1">Sent by:</font>
<td><font face="sans-serif" size="1">"RE-wrenches"
<<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>></font></td></td></tr></td></td></tr></td></td></tr></td></td></tr></td></td></tr></tbody></table><br>
<hr noshade>
<br><br><br><font size="3">I recently installed a Solaredge 7600 inverter and
two feet away from it installed a GE 210 solar kWh utility grade meter. Over
the course of three months the kWh production measured by the inverter is more
than 200 kWh greater then the production showing on the GE meter. I
changed out the GE meter for the last week and the discrepancy has
continued, so it looks like it is not the meter.</font> <br><font size="3">I am
looking for any help in understanding whey there is this large discrepancy on
the kWh reading between the inverter and the production meter, when they are
so close together. The Solaredge technical help desk has been of no
use.</font> <br><br><font size="3">-- </font><br><font size="3">Kevin Eigel</font>
<br><font size="3">President</font> <br><font size="3">Ecohouse Solar</font>
<br><font size="3">1857 Northwest Blvd. Ste 201, Columbus, OH 43212</font>
<br><font size="3">www,</font><a href="http://ecohousesolar.com/" target="_blank"><font color="blue" size="3"><u>ecohousesolar.com</u></font></a>
<br><font size="3"><a href="tel:614-805-5776" value="+16148055776" target="_blank">614-805-5776</a></font> <br><font size="3"><br>______________________________________________________________________<br>This
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