Costco Wholesale has for its
Members:
Ecoflow Delta Pro Ultra Whole-Home Power Solution for
$6999.99.
Shipping is free.
Thanks to community member
caldog101 for sharing this deal.
Includes:
- EcoFlow DELTA Pro Ultra Inverter
- 2x EcoFlow DELTA Pro Ultra Battery
- EcoFlow DELTA Pro Ultra Trolley
Features:
- Scalable 12kWh 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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Top Comments
This one qualifies for a 30% tax credit and will last 10 years
310 Comments
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Where you are, 20c per kwh is a great price. It doesn't make sense for you. But for people that are getting screwed 3 times over at 40c per kwh and high price of gas, it becomes much more feasible.
in my case it's obviously not really worth it but for others it could be something that makes sense, especially if you are unfortunate enough to not have any other options and are getting ripped off by utilities.
I was trying to emphasize how these power companies make it somewhat annoying to figure out you cost per kwh so you're better off just taking some bills and taking the final cost and your total kwh usage to figure things out
I had a home inspection buddy that once told me, if your house burns down and the insurance company "suspect" it is caused by said wiring, and they ask for proof or work done by a bonded professional (like a certified electrician), and you cannot provide that, you could be denied for insurance claim or significantly reduced payout.
I am simply pointing out the pros and cons of both type of backup power. For us in SE Texas, biggest need for power is from hurricane, floods, and found out 3yrs ago from a winter storm and poor state management (ERCOT). We are usually prepared for hurricanes and floods, but that winter storm got us pretty good.
LOL SD is SLICKDEALS.
IF you have solar, I'd run the #'s and consider this.
It's like storing your rice in solid gold containers.
Electricity is the same, if it goes out and you have an important thing that requires it, then you will pay a lot to have it available. The secondary benefits are you get to offset quite a lot of peak on demand pricing from a utility or utilize any excessive solar you produced.
The idea is to draw from this battery during peak hours as set by your utility, then charge this during non-peak hours. Your actual rates matter less than the divergence between on-peak and off-peak. We don't have time-of-use rates in Washington State, but looking atSoCal Edison for an example [sce.com], it looks like the on-peak / super-off-peak rate split is 27 cents / kWh.
If we're paying $8k for the unit + panel, plus 10% sales tax and minus 30% for the tax credit, a fair estimate of our cost is $6400 (this is before any utility incentives that might be available).
If we assume that you use the full 12 kWh capacity of the battery during the on-peak hour, the rate arbitrage that this battery lets us do nets us 12 kWh * $0.27/kWh = $3.24/day of savings.
At $3.24/day of savings, how many days would it take to pay back our $6400 investment?
$6400 / $3.24 = 1975 days = a bit under 5 and a half years.
Let's change the question - how big of an on-peak / off-peak rate split do you need to recoup your $6400 investment?
To save $6400 over 10 years, we'd need to save $6400 / 3650 days = about $1.75/day. To save $1.75 across 12 kWh, we'd need an on-peak / off-peak split of a bit under $0.15/kWh.
There are other factors worth exploring if the decision is an borderline for you - stuff like the installation costs, time value of money, personal benefits of power backup, energy losses for charging and discharging, the potential for your rates to change, possible utility incentives to further decrease the up-front cost, battery degradation, solar... the list goes on. Still, if my utility had time-of-use rates like SoCal Edison or PG&E, I'd pull the trigger on this without much hesitation.
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While this is a good solution if you want to stay away from Tesla or remain portable, I believe Tesla's powerwalls are better overall in terms of integration and price. This is $7000 at 12 kWh / 7.2 kW power, while Powerwalls prices vary from $5900-9300 per unit (13.5 kWh / 11.5 kW power) depending on what you bundle it with, how many you order, and whether or not you need installation (the top end price includes installation).
If you're planning for whole house integration alone, I'd get a powerwall, if you want more flexibility, this can work, but you'll have to add the cost of installation as well. My other experience is that multiple module systems such as this are really complex to control and my experience with the Delta 2 + Delta Max spare battery made me question how well EcoFlow's software is. Probably the best outside of Tesla and commercial solutions, but definitely not as strong as Tesla' powerwall control. I've experienced several "bugs" on the EcoFow delta app so it makes me wary to spend more on something like the Delta Pro Ultra.
Link them together in series and you increase the voltage. Link them in parallel you increase the capacity.
A 9V battery is just 6 "AA batteries" in a box linked in series.
Wake up. The matrix has you.
LoneDude's post was still pretty funny.
The good news is you're both correct that 9v batteries use 6 cells of another battery. It's a mini battery pack. All of the batteries being talked about on this thread are battery packs of many small individual batteries put together.
This one qualifies for a 30% tax credit and will last 10 years
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For instance, Lucid already activated bidirectional charging where you can plug another EV into lucid and it charges them. Thats 80-90kw battery and a fun car to drive so a win win.
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