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frontpageDavid_David posted Nov 27, 2025 11:23 AM
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Item 1 of 2
frontpageDavid_David posted Nov 27, 2025 11:23 AM

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

+ Free Shipping

$6,500

$9,000

27% off
Costco Wholesale
59 Comments 18,117 Views
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Deal Details
Costco Wholesale has for their Members: Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution on sale for $6499.99. Shipping is free.

Thanks to Community Member David_David for sharing this deal.
  • Note: Batteries ship separately.
Available:
  • Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution $6499.99
  • Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution w/ Panel $7499.99


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

Editor's Notes

Written by powerfuldoppler | Staff
  • $2,500 manufacturer's savings is valid 11/27/25 through 12/21/25. While supplies last.
  • This sale price is $1100 lower than this previous Frontpage Deal
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • Rated 4.3 out of 5 stars from over 105 customer reviews.

Original Post

Written by David_David
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 $6499.99. Shipping is free.

Thanks to Community Member David_David for sharing this deal.
  • Note: Batteries ship separately.
Available:
  • Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution $6499.99
  • Ecoflow Delta Pro Ultra 18 KWH Whole-Home Power Solution w/ Panel $7499.99


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

Editor's Notes

Written by powerfuldoppler | Staff
  • $2,500 manufacturer's savings is valid 11/27/25 through 12/21/25. While supplies last.
  • This sale price is $1100 lower than this previous Frontpage Deal
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • Rated 4.3 out of 5 stars from over 105 customer reviews.

Original Post

Written by David_David

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Top Comments

morbidz
107 Posts
26 Reputation
step 1 - buy this
step 2 - fill out form 5695 and file taxes
JohnnySlick777
246 Posts
93 Reputation
PLEASE NO.... Where does the IRS state it has to be installed as well by a certified technician?

58 Comments

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Nov 27, 2025 05:01 PM
135 Posts
Joined Jan 2014
himshahNov 27, 2025 05:01 PM
135 Posts
Can you buy and connect two of this. One for HVAC system and one for all others power need.
Nov 27, 2025 05:02 PM
3,680 Posts
Joined Oct 2003
elnino2783Nov 27, 2025 05:02 PM
3,680 Posts
Quote from RoyGeeBiv :
I like the simplicity of this system, but just throw the latest 300lb 16kWh battery on a hand truck (Ecoworthy or Humsenk) along with a cheap split phase inverter for either brand for like 2.5k all in.
Any part of that still eligible for tax savings?
Nov 27, 2025 05:05 PM
3,835 Posts
Joined Aug 2008
BargainSnatcherNov 27, 2025 05:05 PM
3,835 Posts
Quote from morbidz :
step 1 - buy this
step 2 - fill out form 5695 and file taxes
You missed a step. Needs to be installed before the end of the year.
1
2
Nov 27, 2025 05:09 PM
4 Posts
Joined Feb 2019
IndigoIdea9240Nov 27, 2025 05:09 PM
4 Posts
How good is the panel? Worth it for the extra $1k?
Nov 27, 2025 05:17 PM
580 Posts
Joined Sep 2014
junkpromoNov 27, 2025 05:17 PM
580 Posts
I currently have a Sunrun solar system with a LG Chem backup battery connected to Southern California Edison. If I buy this and connect to Ecoflow panel which connects to my house panel. Will that work and if so will it affect the price that I sell to Edison?
Nov 27, 2025 05:31 PM
528 Posts
Joined Dec 2003
apurvabNov 27, 2025 05:31 PM
528 Posts
Quote from BargainSnatcher :
You missed a step. Needs to be installed before the end of the year.
Isn't plugging it in to my refrigerator "installing"?
Nov 27, 2025 05:36 PM
57 Posts
Joined Feb 2009
jhavNov 27, 2025 05:36 PM
57 Posts
Quote from BargainSnatcher :

You missed a step. Needs to be installed before the end of the year.
There is no 'install' to this.. you simply plug it in and the batteries charge up. Done.

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Nov 27, 2025 05:53 PM
171 Posts
Joined Mar 2023
SplendidGalley998Nov 27, 2025 05:53 PM
171 Posts
How is this different than a standard outdoor generator like a Generac (other than gas vs electric)?
Nov 27, 2025 05:58 PM
624 Posts
Joined Mar 2007
Tylanner1Nov 27, 2025 05:58 PM
624 Posts
the 30/60/90 setups at costco are actually enticing as well $/kwh if you were going bigger than 18. and you get a trolley and the EV charger.
Nov 27, 2025 06:21 PM
7 Posts
Joined Dec 2019
GenricObsrvrNov 27, 2025 06:21 PM
7 Posts
My home I have Enphase solar connectivity done to the grid. if i buy these batteries, do i need smart panel again ? I find the Enphase control board has all these breakers, points to hook up external batteries. Just was trying to learn/understrand first. If i only need batteries then i can as well buy this 48V 100Amp BMS protected 4 of them for 1.2K$ ? please Search in the net for this document on wiring Enphase Energy System Installation Compliance Guide
Nov 27, 2025 07:22 PM
157 Posts
Joined Mar 2015
krnmastersgtNov 27, 2025 07:22 PM
157 Posts
Quote from elnino2783 :
Any part of that still eligible for tax savings?
The batteries and components would all be eligible for the federal credit, state credits/rebates will have much more varying requirements.
Federal credit includes panels, batteries, necessary components to hook up and labor for installation of any systems.

Quote from SplendidGalley998 :
How is this different than a standard outdoor generator like a Generac (other than gas vs electric)?
This unit isn't really meant to be "outdoors" but more in garage/shedded areas connected to the main breaker panel. System can act as a whole home backup but a lot of people use it in conjunction with solar to offset evening usage.
If you have a long term outage you would still grab a generator but this can cover short term/spotty power issues via just the stored energy. This combined with a generator is a good mixture as the battery will cover short term outage and any power spikes and the generator can recharge it at its most efficient output instead of adjusting to loads.

Benefit of Ecoflow is how plug and play it all is + app controls, if you just want more power per dollar there's brands like Eco-Worthy or Docan.
Nov 27, 2025 07:23 PM
171 Posts
Joined Mar 2023
SplendidGalley998Nov 27, 2025 07:23 PM
171 Posts
Quote from krnmastersgt :
The batteries and components would all be eligible for the federal credit, state credits/rebates will have much more varying requirements.Federal credit includes panels, batteries, necessary components to hook up and labor for installation of any systems.This unit isn't really meant to be "outdoors" but more in garage/shedded areas connected to the main breaker panel. System can act as a whole home backup but a lot of people use it in conjunction with solar to offset evening usage. If you have a long term outage you would still grab a generator but this can cover short term/spotty power issues via just the stored energy. This combined with a generator is a good mixture as the battery will cover short term outage and any power spikes and the generator can recharge it at its most efficient output instead of adjusting to loads. Benefit of Ecoflow is how plug and play it all is + app controls, if you just want more power per dollar there's brands like Eco-Worthy or Docan.
Thank you!
Nov 27, 2025 07:24 PM
25 Posts
Joined Nov 2017
ShopperSoniNov 27, 2025 07:24 PM
25 Posts
Quote from morbidz :
step 1 - buy thisstep 2 - fill out form 5695 and file taxes
Please NO! IRS will audit and reject it. It needs to be installed as well by a certified technician. System must be functioning by end of this year. IRS rule (simple version):You can only take the Residential Clean Energy Credit when the equipment is installed and ready for use, not just purchased.
2
6
Nov 27, 2025 07:47 PM
246 Posts
Joined Oct 2018
JohnnySlick777Nov 27, 2025 07:47 PM
246 Posts
Quote from ShopperSoni :
Please NO! IRS will audit and reject it. It needs to be installed as well by a certified technician. System must be functioning by end of this year. IRS rule (simple version):You can only take the Residential Clean Energy Credit when the equipment is installed and ready for use, not just purchased.
PLEASE NO.... Where does the IRS state it has to be installed as well by a certified technician?

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Nov 27, 2025 07:52 PM
246 Posts
Joined Oct 2018
JohnnySlick777Nov 27, 2025 07:52 PM
246 Posts
Quote from himshah :
Can you buy and connect two of this. One for HVAC system and one for all others power need.
Yes, You can pair two DPU's, but will need the 50A hub, or three DPU's but I believe you need the panel 2.
FYI, The new DPU-X was just released for a less space option, But 2 of these with 36kwh is a great price.
Your HVAC Condenser will probably need a soft starter. I'd recommend a Micro-Air Flex Home AC Soft Starter.
https://www.microair.net/products...er?srsltid
Last edited by JohnnySlick777 November 27, 2025 at 12:56 PM.
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