<div dir="ltr">I echo Jason's frustration with this product's compliance. The DPU has been blacklisted by certain AHJs in LA county and I have heard whispers of investigations into the validity of this product's UL listing. Previous models did not include proper labels or means for emergency shut down of the ESS unit. I do not see a code compliant way to integrate solar into this unit. Last I checked, EcoFlow was pushing installers and customers to avoid permitting and interconnection applications because of its "portable nature" but this product is clearly under the purview of NFPA 855. It's a mess and I would suggest avoiding the DPU, especially in this specific PV integration application. </div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 28, 2026 at 3:59 PM Jason Szumlanski via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">That's not where the problems end. It <span style="border-style:none;background:none">doesn't have</span> arc fault protection. I get this phone call at least once a week. It's pretty frustrating - people buy these portable units and think we can just slap a couple of panels on the roof, and they're good to go. That's how the marketing makes it sound.</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"><a href="https://floridasolardesigngroup.com/ecoflow-delta-pro-ultra-x-not-suitable-for-rooftop-solar" target="_blank">https://floridasolardesigngroup.com/ecoflow-delta-pro-ultra-x-not-suitable-for-rooftop-solar</a></div><br clear="all"></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><br>Jason Szumlanski<br>Principal Solar Designer | Florida Solar Design Group<br>NABCEP Certified Solar Professional (PVIP)<br>Florida State Certified Solar Contractor CVC56956<br>Florida Certified Electrical Contractor EC13013208<br></div><div><br></div><div><br></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 27, 2026 at 1:50 PM Howie Michaelson via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div style="font-family:verdana,sans-serif" class="gmail_default">Hi All,</div><div style="font-family:verdana,sans-serif" class="gmail_default">I have a potential client who currently has an <a href="https://www.ecoflow.com/us/delta-pro-ultra" target="_blank">EcoFlow DELTA Pro Ultra</a> inverter installed in his house for battery backup.  He wants to install roof-mounted PV. I don't see how to connect PV into the Inverter/Charger using EMT for code compliance.  Has anyone done something similar?  Can anyone think of a code-compliant method to bring PV into this setup? </div><br clear="all"></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr">Howie Michaelson<br></div></div></div></div>
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