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<div class="moz-cite-prefix">Dave,<br>
<br>
The problem occurs when the kWh meter sends data. I would expect
any neighbors' meters on the same transformer to cause trouble.
And probably neighbors that are not on the same transformer too.<br>
<pre class="moz-signature" cols="72">Kent Osterberg
Blue Mountain Solar, Inc.
<a class="moz-txt-link-abbreviated" href="http://www.bluemountainsolar.com">www.bluemountainsolar.com</a>
t: 541-568-4882</pre>
On 4/15/2013 1:12 PM, Dave Palumbo wrote:<br>
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<p class="MsoNormal">I’d like to revisit a thread from early
February where we were discussing Enphase microinverters going
off line due to utility power quality issues when “Pinging” of
smart meters occur.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a system where I was told by Enphase
that they applied their software fix in late March, but in
this case it did work in fixing the problem of the inverters
dropping for anywhere from 5 minutes to an hour a couple of
times per day. The drops are not regular and now it appears
that they are not connected to the pinging of the meters on my
customers site as we had the utility change their schedule to
only ping at midnight.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We are still seeing AC Frequency Out of
Range errors almost daily on our M-215 inverters. Sometimes it
is for only several inverters and other times up to the whole
array of 32 inverters. On my other Enphase systems have no
problems.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">What other issues besides utility pinging
of my customers smart meter could be causing the problem?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Could the pinging of the neighbors meters
by the utility off of the same transformer be affecting the
Enphase M-215’s? I’m suspicious of something other than this
because the errors occur at random times that appear unrelated
to utility pinging.<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">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<b><o:p></o:p></b></p>
<p class="MsoNormal"><b><i><a class="moz-txt-link-abbreviated" href="http://www.independentpowerllc.com">www.independentpowerllc.com</a> <o:p></o:p></i></b></p>
<p class="MsoNormal">Vermont Solar Partner<o:p></o:p></p>
<p class="MsoNormal">25 Years Experience, (802) 888-7194 <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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