Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
frontpageBraveBook3184 posted Yesterday 09:52 AM
frontpageBraveBook3184 posted Yesterday 09:52 AM

Costco Members: Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution

+ Free Shipping

$7,600

$9,000

15% off
Costco Wholesale
40 Comments 10,485 Views
Get Deal at Retailer
Good Deal
Save
Share
Deal Details
Costco Wholesale has for their Members: Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution on sale for $7,599.99. Shipping is free.

Thanks to Community Member BraveBook3184 for sharing this deal.
  • Note: Batteries ship separately.
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

Editor's Notes

Written by StrawMan86 | Staff
  • $1,400 manufacturer's savings is valid 8/21/25 through 8/31/25. While supplies last.
  • This sale price is $100 lower than this previous Frontpage Deal which received over 30 Thumbs Up.
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • Rated 4.4 out of 5 stars from over 90 customer reviews.

Original Post

Written by BraveBook3184
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for their Members: Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution on sale for $7,599.99. Shipping is free.

Thanks to Community Member BraveBook3184 for sharing this deal.
  • Note: Batteries ship separately.
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

Editor's Notes

Written by StrawMan86 | Staff
  • $1,400 manufacturer's savings is valid 8/21/25 through 8/31/25. While supplies last.
  • This sale price is $100 lower than this previous Frontpage Deal which received over 30 Thumbs Up.
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • Rated 4.4 out of 5 stars from over 90 customer reviews.

Original Post

Written by BraveBook3184

Community Voting

Deal Score
+17
Good Deal
Get Deal at Retailer

Leave a Comment

Unregistered (You)

Top Comments

GumboChief
15 Posts
22 Reputation
Yes, but you'd also need the Ecoflow Smart Home Panel 2, to do it "automatically". Otherwise you'd have to flip a big switch twice a day. Also, SHP2 has a reputation for being buggy. Don't know if it's gotten better. You should check reddit or something.
travis1982
59 Posts
22 Reputation
Foolish... As a solution for power outages. To reduce power bills if you have solar or to capture cheaper night time power rates, they're quite good.

Generator: good for outages, but otherwise little utility and expensive to operate.

Solar + battery: expensive to implement but proven savings over their lifetime and good for power outages (though less flexible than generator)... Also cool your roof so some passive savings in cooling months.

I have a gen, still want solar with a gen input for extended outages.

39 Comments

Sign up for a Slickdeals account to remove this ad.

Yesterday 10:01 AM
5,978 Posts
Joined Dec 2005
GamerossYesterday 10:01 AM
5,978 Posts
Add the panel for $1000 more.
Yesterday 11:16 AM
1,353 Posts
Joined Dec 2008
z4mYesterday 11:16 AM
1,353 Posts
Could someone please point me to some reliable sources or help me better understand if I can use this as a system to power a 4300 sq ft home during the day using battery backup and recharge them during the night using cheaper rates.

My goal is to recoup costs through energy bill savings and for it to also serve as backup power during outages.

Also, what is the best way to recharge these during outages? I'm in Texas and when our grid fails we're out for 3/4 days at a time.

Thanks much in advance.
1
Yesterday 11:21 AM
15 Posts
Joined Aug 2020
GumboChiefYesterday 11:21 AM
15 Posts

Our community has rated this post as helpful. If you agree, why not thank GumboChief

Quote from z4m :
Could someone please point me to some reliable sources or help me better understand if I can use this as a system to power a 4300 sq ft home during the day using battery backup and recharge them during the night using cheaper rates. My goal is to recoup costs through energy bill savings and for it to also serve as backup power during outages.Also, what is the best way to recharge these during outages? I'm in Texas and when our grid fails we're out for 3/4 days at a time. Thanks much in advance.
Yes, but you'd also need the Ecoflow Smart Home Panel 2, to do it "automatically". Otherwise you'd have to flip a big switch twice a day. Also, SHP2 has a reputation for being buggy. Don't know if it's gotten better. You should check reddit or something.
2
Yesterday 11:34 AM
1,537 Posts
Joined Dec 2006

This comment has been rated as unhelpful by Slickdeals users.

Yesterday 11:43 AM
39 Posts
Joined Jun 2006
obtusenessYesterday 11:43 AM
39 Posts

Our community has rated this post as helpful. If you agree, why not thank obtuseness

Quote from z4m :
Could someone please point me to some reliable sources or help me better understand if I can use this as a system to power a 4300 sq ft home during the day using battery backup and recharge them during the night using cheaper rates.

My goal is to recoup costs through energy bill savings and for it to also serve as backup power during outages.

Also, what is the best way to recharge these during outages? I'm in Texas and when our grid fails we're out for 3/4 days at a time.

Thanks much in advance.

We'd need to know your power usage to estimate if this would work, but I'm going to guess it's not big enough for what you want. 4300sqft is a lot of house and I'm going to guess you have 2 (or more) AC units. And Texas is hot.

Another factor is if your appliances are gas or electric, if you have an electric range/stove/water heater/dryer that's going to be a good chunk. Best thing you can do is look at your power bill and see how much power you're using in a month and divide by 30 to get an idea of how long 18kwh will last you. For my 2500 sqft home in Florida, I typically use about 90-100kwh a day in summer, so this would only last a few hours.

As far as how to recharge it when there's no grid, your options are basically solar panels, a generator, or maybe a v2h electric vehicle
4
Yesterday 12:12 PM
40 Posts
Joined Jun 2023
encogneetoYesterday 12:12 PM
40 Posts
Sorry if this is a dumb question; I'm just starting to think about whole home battery backup. Am I correct in thinking that I have an electrician install the Smart Home Panel 2 as a subpanel and move any/all circuits I want to be 'always on' to that panel and I should be set to just plug one of these in? And from there I could add solar if desired?
Yesterday 12:17 PM
13 Posts
Joined Feb 2015
addicted2theGainzYesterday 12:17 PM
13 Posts
Will this be the best deal or wait till Black Friday?
1

Sign up for a Slickdeals account to remove this ad.

Yesterday 12:38 PM
59 Posts
Joined Mar 2019
travis1982Yesterday 12:38 PM
59 Posts
Quote from jmackd :
These things are foolish. For less money you can get a whole house ~20-22kw generator hooked up to your natural gas line and never have to worry about time limits and charging

Foolish... As a solution for power outages. To reduce power bills if you have solar or to capture cheaper night time power rates, they're quite good.

Generator: good for outages, but otherwise little utility and expensive to operate.

Solar + battery: expensive to implement but proven savings over their lifetime and good for power outages (though less flexible than generator)... Also cool your roof so some passive savings in cooling months.

I have a gen, still want solar with a gen input for extended outages.
Yesterday 12:55 PM
53 Posts
Joined Mar 2020
BeigeTable8880Yesterday 12:55 PM
53 Posts

Our community has rated this post as helpful. If you agree, why not thank BeigeTable8880

Quote from z4m :
Could someone please point me to some reliable sources or help me better understand if I can use this as a system to power a 4300 sq ft home during the day using battery backup and recharge them during the night using cheaper rates. My goal is to recoup costs through energy bill savings and for it to also serve as backup power during outages. Also, what is the best way to recharge these during outages? I'm in Texas and when our grid fails we're out for 3/4 days at a time. Thanks much in advance.
Hi. Fellow Texan here. This unit will NOT meet all of your demands during the spring, summer, fall (AC months). I suspect you have a total of at least 10 tons of AC. Just running your AC will overload this system, not to mention the surge needed to get it running. With that said, this is a good turn-key system to run some of your load during outages and during the day. Don't let anyone tell you it will run your entire home. You asked for some reliable sources to learn from. Google William Prose, he is a good place to start and should help you to fall into the DIY solar rabbit hole. With a $7600 budget you could come very close to buying a DIY setup that will meet your needs.
1
Yesterday 12:57 PM
84 Posts
Joined Sep 2016
OrionAntaresYesterday 12:57 PM
84 Posts
Quote from z4m :
Could someone please point me to some reliable sources or help me better understand if I can use this as a system to power a 4300 sq ft home during the day using battery backup and recharge them during the night using cheaper rates. My goal is to recoup costs through energy bill savings and for it to also serve as backup power during outages.Also, what is the best way to recharge these during outages? I'm in Texas and when our grid fails we're out for 3/4 days at a time. Thanks much in advance.
The best way to recharge these during an outage would be a solar array. Unless your goal is to only use a generator during a specific set of hours, it'd be more energy efficient to just use the generator to power your home directly at that point instead of charging the batteries with it to run the home.
1
Yesterday 12:57 PM
3 Posts
Joined Aug 2019
CoolRoad6512Yesterday 12:57 PM
3 Posts
Quote from jmackd :
These things are foolish. For less money you can get a whole house ~20-22kw generator hooked up to your natural gas line and never have to worry about time limits and charging
This guy is wrong. It's all about use case. If you have solar or extremely high daily rates then yes it's worthwhile. I have a power wall paired with solar and it has helped me through extended outages. If the natural gas pumping station has an issue you won't get natural gas.Keep in mind if you want to sell to the grid you will need approval from the utility. If you want to backup automatically you will need a smart panel or connector of some sort. Easier to hire an electrician for that.
Yesterday 01:07 PM
53 Posts
Joined Mar 2020
BeigeTable8880Yesterday 01:07 PM
53 Posts
Quote from CoolRoad6512 :
This guy is wrong. It's all about use case. If you have solar or extremely high daily rates then yes it's worthwhile. I have a power wall paired with solar and it has helped me through extended outages. If the natural gas pumping station has an issue you won't get natural gas.Keep in mind if you want to sell to the grid you will need approval from the utility. If you want to backup automatically you will need a smart panel or connector of some sort. Easier to hire an electrician for that.
Also, he claims that a 22kw generator, installed, would cost less than $7600? I'm not so sure about that claim. On top of that you're going to be paying $80 - $100 per day to run it, assuming natural gas is even flowing. This totally removes the 'run it during the day to save with lower rates at night' use case.
Yesterday 01:25 PM
2,883 Posts
Joined Nov 2014
ValueRangerYesterday 01:25 PM
2,883 Posts
Quote from z4m :
Could someone please point me to some reliable sources or help me better understand if I can use this as a system to power a 4300 sq ft home during the day using battery backup and recharge them during the night using cheaper rates.

My goal is to recoup costs through energy bill savings and for it to also serve as backup power during outages.

Also, what is the best way to recharge these during outages? I'm in Texas and when our grid fails we're out for 3/4 days at a time.

Thanks much in advance.
This is perhaps the best setup I've ever seen, and will probably set a new standard for Hybrid setups. Be sure to consider a propane generator that fits this model (pretty easy to do, and far more practical than gas generators).

I'm in favor of having layered backup for vital infrastructure, like baseload power - especially if you have more dependent family members, like young children or elderly. Hopefully this video provides at least a minimum educational value for you, going forward. Good luck to you and yours.

https://www.youtube.com/watch?v=IBfWOmCjdYQ
1
Yesterday 01:48 PM
884 Posts
Joined Oct 2003
TacoYesterday 01:48 PM
884 Posts
Quote from jmackd :
These things are foolish. For less money you can get a whole house ~20-22kw generator hooked up to your natural gas line and never have to worry about time limits and charging

What's a 'gas line'.
3

Sign up for a Slickdeals account to remove this ad.

Yesterday 02:07 PM
3,297 Posts
Joined Sep 2013
PaulP6715Yesterday 02:07 PM
3,297 Posts
Quote from Taco :
What's a 'gas line'.
the common way people refer to the pipe that brings natural gas to your house for the past 50 years?
1
1

Leave a Comment

Unregistered (You)

Popular Deals

View All

Trending Deals

View All