Costco Wholesale has for their Members:
Ecoflow Delta Pro Ultra Whole-Home Power Solution (18 KWH Solution) for the prices listed.
Shipping is free.
Thanks to Community Member
gspfunk for finding this deal.
Available:- Ecoflow Delta Pro Ultra Whole-Home Power Solution (18 KWH Solution) $7999.99
- Ecoflow Delta Pro Ultra Whole-Home Power Solution w/ Panel (18 KWH Solution) $8999.99
Features:- Scalable 18 kWh Solution Provides Up to a Week of Essential Power Supply
- Exceptional 7200w Output Powers Most Household Appliances at 120v or 240v
- Super-fast Charge Up to 8800w by Combining Solar and AC
- Online Ups Ensures 0-ms Transfer Time, Offering Constant Protection for Sensitive Devices
- Long-lasting 10-year LFP Battery for Reliable Performance
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In retrospect, I might have chosen to go down a different path now that I know all of this, and am still debating returning it and replacing it with a DIY solar PV system, but it's not for the lack of quality but logistics for my particular house, and what I'm trying to achieve with it. Otherwise, it's an extraordinary device.
I tried using the 0 ms online UPS port to power my network & server stack directly, removing my normal UPS from the path, and few days later got a notice that the NAS had unexpectedly rebooted. Looked and found that the entire network & server stack had unexpectedly rebooted, meaning that the online UPS port briefly went offline for some reason. I've split the load across the online & standby ports to see if it happens again and so far it hasn't, so I don't know what caused it to happen. It might be load related, might be linked to the fact I was only using an online port & not the standby ports, or it might have been a one time thing due to some combination of those.
The other annoying point is that the scheduling for time of use/time shifting is half baked at best. It is only possible to create a single schedule, which doesn't sound bad but is extremely frustrating if you want to have different schedules on different days. In my case I need a M-F schedule, the days I have mixed on peak/off peak power rates, and then a Sat-Sun schedule when the entire day is off peak. That simply isn't possible to do. Creating the M-F schedule entry works, but then it is impossible to add another entry for Sat-Sun. With just the M-F schedule the system shifts to battery only mode on Saturday and only pulls from the AC input when the battery is drained to the configured minimum level. To make M-F work, and still have it use the AC input most of the time on Sat-Sun, I had to create a single entry that says I have a peak power charge every day. So even on the two days where I don't need to power shift I have to because I want to power shift the five other days.
Oh, and setting up as "time of use" had its own problems of running on battery even though the app dashboard said it was supposed to be charging the battery. Supposedly there was a bug about it using UTC instead of the local time zone, but I'm not sure that was what was happening. It might have been because when I finally left it alone for a day or so it did seem to finally sync up with what the dashboard said should be happening. At least mostly, since the same single schedule problem above exists and it still went into battery only mode.
Regarding hookup, I figure you can just install a standard transfer switch with interlock or a GenerLink. That would be the best way without the SHP2.
The Smart Home Panel 2 has some potential issues. If there's a problem with the relays, they're integrated, so you'd have to replace the entire panel. If you use a transfer switch with interlock, you can power everything (your main panel) through your Delta Pro Ultra and then connect the DPU to your service panel.
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If they are shipping from EF I would be wary though. They took thousands of orders over prime days charged everyone's cards, sent out fake tracking numbers and never shipped.
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Your way of thinking is a bit short sighted. Also, not everything is about ROI. Ask the victims of natural disasters how much they would be willing to spend to not have had to live without electricity in sweltering heat and humidity or frigid nights for weeks at a time. Forget about creature comforts like temperature control. What if you or a family member have life sustaining medical equipment that needs electricity to function?
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Correction: Highest charging rate at 120V is the full 15A, so 1800W. That requires the charging rate switch be set to the left. When the switch is set to the right you can configure the maximum charging rate via the app, and I think the maximum allowed was 1600W. Note that using the full 15A on a 15A circuit for an extended period is not a good idea (sustained load should be 80% of the circuit capacity).
I was just testing this, along with how it handled input depending on switch position when output was > than the input supported (I noticed the manual said the behavior differs depending on switch position) and I wound up tripping both circuits in a tandem 15A breaker. I think it was a side effect of the DPU pulling the full 15A on one side and my level 1 EV charger pulling 13.5-14A on the other side. Apparently running one circuit a smidge over 15A and the other at about 14.5A (EV charger + other garage stuff) caused the entire breaker to heat up enough that both circuits tripped at once.
Not bad considering the ROI of other home projects is typically in the 5-10 year window
I actually forgot to factor in the inverter overhead when I did my cost calculations. Looking at my power draw before & after the DPU found that I am actually using about 18-20% more power with the DPU than before. Doing the math I found that even though I am using more power, because the peak rate is about 3x higher than the off peak rate the TOU power shift still saves me a little bit of money, but not as much as I initially calculated.
edi: x-path -> X-Fusion (I should have checked the name)
https://renewableoutdoo
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