<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">We have the same situation with a Tesla power wall three, we are going to try to trick it with a Honda inverter generator, 7000 W.<br id="lineBreakAtBeginningOfSignature"><div dir="ltr"><div>Michael D Nelson</div><div>MD Electric & Solar, Inc.</div><div>707-684-0064 mobile</div><div>707-884-1862 office</div><div>www.mdelectricsolar.com</div><div>www.facebook.com/mdelectricandsolar</div><br></div><div dir="ltr"><br><blockquote type="cite">On Oct 15, 2025, at 2:27\u202fPM, Jason Szumlanski via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">\ufeff<div dir="ltr"><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I know Enphase now allows full off-grid, but I read their tech brief, and it requires a generator to be present for commissioning, I believe. Has anyone commissioned one of these systems off-grid?</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">The reason I ask is that I have a new home build, and the utility meter won't be set until January or later. I could plausibly install the microinverters and batteries and get the system up and running to power the house during construction, prior to having a utility source. That should qualify them for the tax credit.</div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">If the off-grid mode can't be set up without a generator, I suppose it would be possible to "trick" the system by getting it commissioned with a generator on the AC input of the System Controller with the profile set to no export. That's not ideal, probably not advisable, and certainly not supported, but... as long as the generator source is clean enough to look like the grid...</div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I reached out to Enphase to see if the generator requirement can be waived, which is the ideal scenario. </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I would be interested in hearing about any general experiences with Enphase in full off-grid use. I can't imagine there are that many out there yet.</div><br clear="all"></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida Certified Electrical Contractor EC13013208</font></div></div></div></div></div>
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