Ecoflow has the Delta Pro Ultra inverter and 2x batteries on a decent sale. Not sure how long the deal will be live but I was able to use it just now.
https://us.ecoflow.com/products/d...lackfriday
Use coupon code
EF2024BFSPECIAL for an extra 7% off.
Sales price of $6,499 - $454.93 from the coupon gives price of $6,044.07 plus tax. Shipping is free. I'm planning to use it until I am able to do a full house inverter and battery install next year with EG4 hardware.
- 12kWh storage capacity
- 7.2kW output (30A @ 240v)
- Up to 5.6kW input of solar power
- New hardware so it should quality for the 30% residential tax credit
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If you need a decent amount of storage, say 45kWh, EG4 cost would be around $16k.
- FlexBoss (15kW output, 21kW solar input max) w/ GridBoss - $6,000
- 3x Wallmount Batteries (43kWh) - $9,900
For EcoFlow Ultra you'd be looking at > $30k.
- 2x Delta Pro Ultra (14.4kW output, 11kW solar input max) (this deal x2) - $12,100 (current price without this sale though would be $17,600)
- 5x more 6kWh batteries (42kWh total - 2 from deal and 5 more) - $16,500
- Smart Home Panel 2 - $1900
You might be able to find better deals but the EcoFlow is realistically at least twice as much, even with this deal which appears to be dead already. It's also less capable and install will require thousands in extra hardware and wall space; I haven't looked too much into their home panel but it seems pretty basic. The GridBOSS acts as a central input for all AC input, including a whole home generator. It can supplement power from the grid, so let's say your house is pulling 20kW, it would do 15kW from FlexBoss and add the 5kW from the grid. It doesn't look like EcoFlow's panel can do that.
So yeah, this 12kWh set will do fine for letting me get started with my panels and I can use it to charge my EV for now, but the only real advantage the EcoFlow offers is portability. Not really necessary for a full house setup, you could buy a whole 2nd EG4 setup for probably cheaper.
Costco has ecoflow 18kwh system with smart panel for 9k, which isn't bad that is something homes without EVs can get by. You're probably doing a giant setup because you have a EV which uses more power than a home. Here in my county average home kwh usage is 300-400 KWH per month, that system is overkill for me and most people. If you get that combo for 9k and another 18kwh battery system+inverter for 8k. You're looking at 17k with two inverters and 36kwh power, it's not bad, Idk where you got that 30k+ number.
Feature - EG4 - EcoFLow
AC Output - 12-16kW - 7.2kW
Energy Storage - 14.3kWh - 18kWh
Solar Input - 21-24kW - 5.6kW
Generator Input - 125A - 50A
Grid Input - 200A - 100A
The Smart Panel 2 does look more feature rich than I thought, it can do grid & generator input, though lower numbers than the GridBoss, and it doesn't say if it can mix and match solar plus grid or if it just completely cuts over when you use more power than the inverters can supply. It doesn't auto run the generator either, it's manual interlock. Only 100A from your service meter is less than most US households get from the grid so that's not great. And only 5.6kW of solar input with the single inverter is pretty low.
The big cost difference is battery, it's $3300 for every 14.3kWh of storage to add to EG4. For EcoFlow it's $2500 for every 6kWh. That's just a huge difference and if anyone needs a decent amount of storage, it's going to price EcoFlow out of the running.
For me, yes I use over 100kW of power a day (around 110-180kW, depending if I go anywhere and charge the car). I have some servers running that eat up a good chunk of power, and in the summer I'm running a pool pump and 2x home AC units. So I'm planning around 15kW of solar panels and initially around 30kWh of storage, but I might want more (prob will need more of both, 100+kWh/day is a lot but I don't need to go completely off grid). Since the battery pricing is so high for EcoFlow it just wouldn't make sense for me. But for a smaller system that just need 5kW of solar and some storage, yeah it's not bad, the price isn't necessarily twice as much. Personally though I'd still rather go EG4 even at the smaller scale because the GridBoss is significantly better than the Smart Panel 2, the FlexBoss allows significantly more input and output, and scaling up either the inverters or the battery storage is going to be cheaper with EG4. If you don't need the portability, I don't see a compelling reason to use EcoFlow.
I have a vevor inverter and big lifepo4 battery for my shed/office and let me tell you it required a lot of time/research for me to install. With the ecoflow I just contacted an electrician and easily installed the smart panel and batteries within hours. Wiring is so simple just plug the solar to battery, battery in to smart panel 2, then that plugs into the main.
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