[RE-wrenches] Code compliant PV wire to an EcoFlow DELTA Pro Ultra Inverter/Charger

[Chris Sparadeo]

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.

On Tue, Apr 28, 2026 at 3:59 PM Jason Szumlanski via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> That's not where the problems end. It doesn't have 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.
>
>
> https://floridasolardesigngroup.com/ecoflow-delta-pro-ultra-x-not-suitable-for-rooftop-solar
>
>
> Jason Szumlanski
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
> Florida Certified Electrical Contractor EC13013208
>
>
>
>
> On Mon, Apr 27, 2026 at 1:50 PM Howie Michaelson via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Hi All,
>> I have a potential client who currently has an EcoFlow DELTA Pro Ultra
>> <https://www.ecoflow.com/us/delta-pro-ultra> 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?
>>
>> Howie Michaelson
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