That was basically my reply and we&#39;re not even talking about battery back up inverters only direct grid tie.   He just persisted with the what if.   Is it actually &quot;impossible&quot; for a direct grid tied inverter to back feed any voltage to a dead grid ?<br><br>On Sunday, November 22, 2015,  &lt;<a href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a>&gt; wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><font face="arial" size="4"><p style="margin:0;padding:0;font-family:arial;font-size:14pt;word-wrap:break-word">worst case scenario, a battery based inverter system trying to power the grid would immediately shutdown on overload as the &quot;infinite load&quot; of the grid would look like a dead short.</p>
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<p style="margin:0;padding:0;font-family:arial;font-size:14pt;word-wrap:break-word">also, all utility workers treat lines as &quot;live&quot; and routinely short out feeders before working on them... so the likelihood of this being an issue is extremely tiny.</p>
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<p style="margin:0;padding:0;font-family:arial;font-size:14pt;word-wrap:break-word">someone else would have to address the liability issue, but i imagine this is covered in the utility&#39;s net metering contract.</p>
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<p style="margin:0;padding:0;font-family:arial;font-size:14pt;word-wrap:break-word">todd</p>
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<p style="margin:0;padding:0;font-family:arial;font-size:14pt;word-wrap:break-word"><br><br>On Sunday, November 22, 2015 1:19pm, &quot;gary easton&quot; &lt;<a href="javascript:_e(%7B%7D,&#39;cvml&#39;,&#39;gary@arp-solar.com&#39;);" target="_blank">gary@arp-solar.com</a>&gt; said:<br><br></p>
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<div dir="ltr">Hello Wrenches,
<div>I have an electrical engineer customer that asked me a &quot;what if&quot; that I had not heard before. If an inverter somehow back feeds the grid during an outage and damages something or hurts someone who is liable? <br>-- <br>
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<div dir="ltr"><span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px">Gary Easton<br>Appalachian Renewable Power</span>
<div><span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px">Stewart, Ohio 45778<br>NABCEP Certified Solar PV                                                            <br>T: <a style="color:#0658b5">740-277-8498</a></span>
<div><span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px"><a style="color:#0658b5"></a> <a href="http://www.arp-solar.com" target="_blank">www.arp-solar.com</a></span></div>
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<h1 style="color:#003399;font-family:Arial,sans-serif;font-size:12px;margin:0px">\u201cFirst they ignore you. Then they laugh at you. Then they fight you. Then you win.\u201d</h1>
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<div>~Ghandi</div>
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</div></font><br><br><br>Sent from Finest Planet WebMail.<br></blockquote><br><br>-- <br>Sent from Gmail Mobile<br>