expired
Costco Members: Ecoflow Delta Pro Ultra Whole-Home Power 12 KWH Solution
$4,500
$7,000
35% off
+ Free Shippingat Costco Wholesale
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+ Free Shippingat Costco WholesaleDeal Details
Costco Wholesale has for its Members: Ecoflow Delta Pro Ultra Whole-Home Power 12 KWH Solution (1814789) on sale for $4499.99. Shipping is free.
Thanks Community Member David_David for sharing this deal
Includes:
Thanks Community Member David_David for sharing this deal
Includes:
- 1x EcoFlow DELTA Pro Ultra Inverter
- 2x EcoFlow DELTA Pro Ultra Battery
- 1x EcoFlow DELTA Pro Ultra Trolley
- 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
Editor's Notes
Written by slickdewmaster | Staff- About this Offer:
- This sale price is $1,500 less than this previous FrontPage Deal from May 2024 which received over 40 Thumbs Up from the community.
- $2500 manufacturer's savings is valid through 12/30/25. While supplies last. Limit 2 per member.
- If you don't have a Costco Warehouse Membership, you can sign-up here
- Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for its Members: Ecoflow Delta Pro Ultra Whole-Home Power 12 KWH Solution (1814789) on sale for $4499.99. Shipping is free.
Thanks Community Member David_David for sharing this deal
Includes:
Thanks Community Member David_David for sharing this deal
Includes:
- 1x EcoFlow DELTA Pro Ultra Inverter
- 2x EcoFlow DELTA Pro Ultra Battery
- 1x EcoFlow DELTA Pro Ultra Trolley
- 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
Editor's Notes
Written by slickdewmaster | Staff- About this Offer:
- This sale price is $1,500 less than this previous FrontPage Deal from May 2024 which received over 40 Thumbs Up from the community.
- $2500 manufacturer's savings is valid through 12/30/25. While supplies last. Limit 2 per member.
- If you don't have a Costco Warehouse Membership, you can sign-up here
- Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
Community Voting
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Top Comments
The credit, originally part of the Inflation Reduction Act of 2022 and scheduled to last through 2034, was accelerated to terminate at the end of 2025 with the signing of the "One Big Beautiful Bill Act" on July 4, 2025.
Key Details
Credit Amount: The credit is for 30% of the cost of new, qualified clean energy property for your home.
Eligible Improvements: Qualifying expenses include those for solar panels, solar water heaters, small wind turbines, geothermal heat pumps, and battery storage technology (capacity of 3 kWh or greater).
Limits: There is no annual or lifetime dollar limit on the credit amount for most qualifying property, but it is nonrefundable. Any excess credit can generally be carried forward to reduce tax in future years, provided the credit is still in effect.
How to Claim: To claim the credit, you must file IRS Form 5695 with your federal tax return for the tax year in which the property is installed and placed in service.
Homeowners considering these upgrades should act quickly to ensure installation is completed before the deadline. For more information on eligibility and to find other potential state or local incentives, you can consult a tax professional or use resources like the DSIRE database.
If you are doing TOU augmenting, this only works out math wise if you are spending like $600+ a year on peak usage and year that you can 0 out else repayment time isn't worth it as battery prices will continue to decrease over time and a dollar today is worth way more than a dollar 5 years from now.
If you have solar, this could extend you based on power usage after peak sun...but we found the math just doesn't work, repayment period for us is over 10 years based on night usage and our off peak is 0.08/kw.
So model it out based on your usage to see if it makes sense under 5 year repay.
You should not need a permit to install a portable generator!
Depending on your area/location, You may need a permit for roof mounted panels.
Simply add a transfer switch or interlock kit and a generator inlet box.
It just needs to produce energy to offset your electric bill, if you're worried about IRS sending a pencil pusher to look at your electrical system.
Basically get a cheap/used solar panel and connect it to the DPU, then plug a few items into the DPU and you are good, until your final install.
Community Reviews
EcoFlow Delta Pro Ultra is being framed as a serious whole home backup and peak rate battery system, with enough capacity to keep a house running for a while and strong value at this price. The trolley is included, though it only carries one 6 kWh battery, not the full 12 kWh setup. The federal 30 percent clean energy credit appears to apply to the battery and installation costs if the system is installed and placed in service by December 31, 2025. The main uncertainty is the offer language around installation and eligibility, which is still unclear. It looks most compelling for outage backup or high time of use rates, especially where electricity is expensive.
The trolley setup reportedly carries only one 6kWh battery, which can still make the overall package attractive.
The system can support whole-home backup use cases by running a house for a while during outages.
The federal Residential Clean Energy Credit can include battery storage technology at 3 kWh or greater when placed in service by the deadline.
The DPUX can deliver 12kW, which may reduce the need for additional hub hardware for a 50A house connection.
The offer language reportedly leaves installation requirements unclear, which creates uncertainty about what qualifies for the credit.
The unit may be treated as a mobile unit, which raises questions about whether it must be installed versus placed in service for the federal tax credit.
The deal page reportedly does not clearly describe the trolley details, and the pictured trolley may differ from the included tray.
The economics can fail for TOU use when peak spending is low, with repayment potentially exceeding 10 years for some usage patterns.
Common Questions (5)
AI-generated summary based on comments from the community. Updated ago
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49 Comments
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I had an extensive 'chat' w/AIs about this - what 'it' said was it comes down to a check-list showing it's configured & running - this is simply incase of an audit.
I had an extensive 'chat' w/AIs about this - what 'it' said was it comes down to a check-list showing it's configured & running - this is simply incase of an audit.
You should not need a permit to install a portable generator!
Depending on your area/location, You may need a permit for roof mounted panels.
Simply add a transfer switch or interlock kit and a generator inlet box.
It just needs to produce energy to offset your electric bill, if you're worried about IRS sending a pencil pusher to look at your electrical system.
Basically get a cheap/used solar panel and connect it to the DPU, then plug a few items into the DPU and you are good, until your final install.
If you are doing TOU augmenting, this only works out math wise if you are spending like $600+ a year on peak usage and year that you can 0 out else repayment time isn't worth it as battery prices will continue to decrease over time and a dollar today is worth way more than a dollar 5 years from now.
If you have solar, this could extend you based on power usage after peak sun...but we found the math just doesn't work, repayment period for us is over 10 years based on night usage and our off peak is 0.08/kw.
So model it out based on your usage to see if it makes sense under 5 year repay.
One could interpret installation as just put in place in your garage near your electrical panel etc. It could also mean having the inlet installed and hooked up to your panel. No one even knows.
I also wonder how they even plan on verifying installation date, if you get audited say, 2 yrs from now
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You should not need a permit to install a portable generator!
Depending on your area/location, You may need a permit for roof mounted panels.
Simply add a transfer switch or interlock kit and a generator inlet box.
It just needs to produce energy to offset your electric bill, if you're worried about IRS sending a pencil pusher to look at your electrical system.
Basically get a cheap/used solar panel and connect it to the DPU, then plug a few items into the DPU and you are good, until your final install.
I do not think a solar panel is required but this would be safer.
Sign up for a Slickdeals account to remove this ad.
Join The Conversation
Share your experience with the Slickdeals community
Share information with the community. Please follow our Community Guidelines and be kind!