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frontpage Posted by f12_26 | Staff • Last Sunday

ECO-WORTHY 9840W Solar Kit (24 Panels, 10kW GroWatt Inverter, 8x 100Ah LP Battery)

+ Free Shipping

$8,800

$10,000

12% off
eBay
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Deal Details
eco-worthy-us via eBay has ECO-WORTHY 9840W Solar Kit (24x 410W Panels, 10kW GroWatt Inverter, 8x 100Ah LP Battery) on sale for $9999.99 - $1200 (12%) off savings automatically applied = $8799.99. Shipping is free.

Thanks to Staff Member f12_26 for sharing this deal.

Includes:
  • 24x 410W All Black Solar Panels
  • 1x 10000W 48V-120V/240V GroWatt Hybrid Inverter (10-Year EcoWorthy Warranty, UL 1741 Listed）
  • 8x Eco-Worthy 48V 100Ah (Version 3) LiFePO4 Battery (10-Year EcoWorthy Warranty)
  • Required accessories

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
    • eco-worthy-us via eBay has a 98.9% positive feedback with over 117K items sold.
    • 30 days returns. Seller pays for return shipping.
  • Additional Information:
    • Offer valid through July 17, 2025 at 11:59PM PT, while supplies last.
    • This offer is $850 less (9% savings) than our front page deal price of $9649.99 from June 2025.
    • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by f12_26 | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has ECO-WORTHY 9840W Solar Kit (24x 410W Panels, 10kW GroWatt Inverter, 8x 100Ah LP Battery) on sale for $9999.99 - $1200 (12%) off savings automatically applied = $8799.99. Shipping is free.

Thanks to Staff Member f12_26 for sharing this deal.

Includes:
  • 24x 410W All Black Solar Panels
  • 1x 10000W 48V-120V/240V GroWatt Hybrid Inverter (10-Year EcoWorthy Warranty, UL 1741 Listed）
  • 8x Eco-Worthy 48V 100Ah (Version 3) LiFePO4 Battery (10-Year EcoWorthy Warranty)
  • Required accessories

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
    • eco-worthy-us via eBay has a 98.9% positive feedback with over 117K items sold.
    • 30 days returns. Seller pays for return shipping.
  • Additional Information:
    • Offer valid through July 17, 2025 at 11:59PM PT, while supplies last.
    • This offer is $850 less (9% savings) than our front page deal price of $9649.99 from June 2025.
    • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by f12_26 | Staff

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Top Comments

synthesis77
1323 Posts
395 Reputation
Lot of wrong information in this thread. Here are corrections:1 - Yes, this will provide power to your house from battery and fall back to grid (or grid+existing solar) when low on battery.2 - No, you don't need a transfer switch, that's what the "hybrid" in off-grid inverters means. The inverter sits BETWEEN the grid and your house.3 - 40kwh is pretty huge and will likely run everything in your house 24/7. (but! see #4):4 - KWh is ENERGY, KW is POWER. Energy is how much you use in a day/month/etc. Power is how much you use in an instant. So, while 40kwh is lots of energy, 10kw is a medium amount of power. You will likely be able to run a smaller central A/C, but probably not at the SAME TIME as an electric water heater or electric stove or electric dryer. You'll have to add up the power ratings of the devices to see which combinations will fit in 10kw at any given time (accounting for startup loads too).5 - Everyone* in the US has split-phase which is what this inverter does. EDIT: It's unclear. Description says split-phase, inverter spec sheet says single phase. If it's single phase, you'll need an autoformer to get the neutral (easy).6 - Racking can be easy (but kinda expensive if you're doing rooftop, and, you don't want to screw it up and have leaks or flying panels). Ground mount can be as simple as putting down some weed stop fabric and lying the panels flat on top of it.7 - Do be careful, 500vdc can do some serious damage both to you and to flammable things nearby. It's not hard, but do your homework before messing about.8 - Yes, this qualifies for any tax incentives (really anything is if you claim it, and this would satisfy an audit).9 - No, your power company or permit office doesn't need to know, it's all "downstream" from them (and removable if needed).10 - As such, this does NOT backfeed the grid, but that's what the battery is for. EDIT this model MAY offer backfeed optionally, but you don't have to.11 - I don't know what this inverter supports as far as bypass current, meaning, how much grid power can go THROUGH it once you get past that 10kw. That would inform whether you could run EVERYTHING aim your house through it (like having a 40 amp main!) or whether you'd need a smaller subset of your house (like excluding an electric water heater or stove). Of course you could just make sure to not charge the car while running AC or things like that. EDIT: anyone know which exact GroWatt model? Maybe this: https://signaturesolar.com/conten...202405.pdf If so, specs say 62.5 amp pass thru (15kw) which is pretty good.Long story short, this is a pretty good turnkey setup. You can do cheaper with DIY, but you'd need a lot more knowledge and tolerance for risk.Finally, the setup with grid (and/or with existing grid-tied solar) is as follows:Meter Main -> (existing grid-tie solar) -> high loads panel (unbacked up) -> GroWatt INPUT -> GroWatt Output -> Backed up loads Subpanel -> loads.The hybrid inverter will have settings that allow you to switch whether the battery is used all the time (falling back to the grid when low) or only in a power outage. Even when using the grid, it will "add" your solar production to the loads (thus subtracting from your grid usage). All of this is automatic and seamless, you'll likely never notice again if your power goes out, it's that fast.
bogelo2
10 Posts
10 Reputation
Yes, you can if you have basic understanding on d/c and a/c wiring, and how electricity works. If you never wire anything, you will need to do a lot of reading (chatgpt, however they are not always right) and/or watching youtube videos. First, you will need to open your main breaker panel and check if you have a 240v split phase (newer standard) or other configuration. This inverter is a 120v single phase and if you have a 240V split phase, you cannot use it for any 240v appliances. In addition, you will need a transfer switch (auto or manual) and a subpanel. I wired a few Victron multiplus and you can DM me if you have any questions.
EDIT: according to the page, it is a 240v single phase (not 120v single phase) but one user says it is a 240v split phase. I am not sure which one it is as I never work on this particular inverter. If it is a single phase 240v, you may need to get a single phase voltage splitter (example: Victron Auto transformer) to work with U.S. grid and U.S appliances. Since this is a hybrid inverter (assuming it is), you will still need a manual transfer switch for safety and maintenance reason.

28 Comments

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Last Monday
496 Posts
Joined Nov 2017
Last Monday
Lam.d09
Last Monday
496 Posts
Currently ha e 6.3kwh solar grid tied. Would this be an upgrade to go hybrid and have the batteries run the house for a bit and have the grid take over when neeed?
Last Monday
25 Posts
Joined Jul 2023
Last Monday
LavenderStar9827
Last Monday
25 Posts
Quote from Lam.d09 :
Currently ha e 6.3kwh solar grid tied. Would this be an upgrade to go hybrid and have the batteries run the house for a bit and have the grid take over when neeed?

That's a very vague question with not enough information
Last Monday
10 Posts
Joined Sep 2020
Last Monday
winterdealhot
Last Monday
10 Posts
If I had not bought similar setup already (trying to install it in the next few months), I would jump on it. It's a pretty good deal to me
Last Monday
10 Posts
Joined Sep 2020
Last Monday
winterdealhot
Last Monday
10 Posts
Quote from Lam.d09 :
Currently ha e 6.3kwh solar grid tied. Would this be an upgrade to go hybrid and have the batteries run the house for a bit and have the grid take over when neeed?
This set will give you 40kwh stored electricity, which is almost enought to run a small to medium house off grid during sunny days. I have a big house and the central AC can drain the battery down quickly. My solution is to install 2 window AC (or split units) in 2 rooms selected strategically. This setup can run the whole house without the central AC
Last Monday
458 Posts
Joined May 2011
Last Monday
SennamonTea
Last Monday
458 Posts
can you hook this up yourself or do you need an electrician to add to your existing breaker?
Last Monday
10 Posts
Joined Jul 2018
Last Monday
ChadP2005
Last Monday
10 Posts

Our community has rated this post as helpful. If you agree, why not thank ChadP2005

Quote from SennamonTea :
can you hook this up yourself or do you need an electrician to add to your existing breaker?
You will need racking to mount the solar panels at the very least. If you are connecting to your house power you need a dedicated breaker with safety lockout, or a dedicated breaker with automatic transfer switch. Recommend an electrician
1
1
Last Monday
814 Posts
Joined Nov 2017
Last Monday
oharag1
Last Monday
814 Posts
Can anyone answer these questons:
- My energy calculations (using pas electrical info) i use about 20.84 kW daily. Does this mean I need to purchase 2X 10kW Growatt Inverters?
- Can the Growatts output 240VAC - do you need to put them in parallel?
- Are the Growatts hybrid inverters meaning I can hookup to grid and take part in net metering/selling back to electric company?
- Can the Growatts accept - solar + grid + generator input?
- Who makes the solar panels - I went on Eco-Worthy website and they don't list 410W panels - are they 3rd party? Is there a link to the panels efficiency - performance - warranty - etc?
- What does Ver 3 for the batteries mean? I did watch youtubes on this battery - abd I know that ver2 added a larger circuit breaker and a redesign). Does ver3 mean UL listed?
- Has anyone had luck installing Eco-Worthy by an installer if permits are required?

-

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Last Monday
458 Posts
Joined May 2011
Last Monday
SennamonTea
Last Monday
458 Posts
Quote from ChadP2005 :
You will need racking to mount the solar panels at the very least. If you are connecting to your house power you need a dedicated breaker with safety lockout, or a dedicated breaker with automatic transfer switch. Recommend an electrician
I have land that can set up that gets full sun, don't need to go to the roof, do you have a video or something that shows how to hook up? I'll probably get electrician though
Last Monday
2 Posts
Joined Aug 2012
Last Monday
burkhart56
Last Monday
2 Posts
Quote from SennamonTea :
can you hook this up yourself or do you need an electrician to add to your existing breaker?

If you are not an electrician, then you will probably need professional help to install this system. Not just an electrician but roof or ground installation of the solar panels.
Last Monday
10 Posts
Joined Sep 2024
Last Monday
bogelo2
Last Monday
10 Posts

Our community has rated this post as helpful. If you agree, why not thank bogelo2

Quote from SennamonTea :
can you hook this up yourself or do you need an electrician to add to your existing breaker?
Yes, you can if you have basic understanding on d/c and a/c wiring, and how electricity works. If you never wire anything, you will need to do a lot of reading (chatgpt, however they are not always right) and/or watching youtube videos. First, you will need to open your main breaker panel and check if you have a 240v split phase (newer standard) or other configuration. This inverter is a 120v single phase and if you have a 240V split phase, you cannot use it for any 240v appliances. In addition, you will need a transfer switch (auto or manual) and a subpanel. I wired a few Victron multiplus and you can DM me if you have any questions.
EDIT: according to the page, it is a 240v single phase (not 120v single phase) but one user says it is a 240v split phase. I am not sure which one it is as I never work on this particular inverter. If it is a single phase 240v, you may need to get a single phase voltage splitter (example: Victron Auto transformer) to work with U.S. grid and U.S appliances. Since this is a hybrid inverter (assuming it is), you will still need a manual transfer switch for safety and maintenance reason.
Last edited by bogelo2 July 7, 2025 at 04:32 PM.
1
Original Poster
Pro
Staff
6d ago
33,712 Posts
Joined Apr 2014
6d ago
f12_26
6d ago
Original Poster
Pro
Staff
33,712 Posts
This is the lowest price posted in this forum
6d ago
31 Posts
Joined Jun 2017
6d ago
seventhdefender
6d ago
31 Posts
Does this qualify for government tax credit?
5d ago
290 Posts
Joined Dec 2013
5d ago
S2KPHD
5d ago
290 Posts
Quote from seventhdefender :
Does this qualify for government tax credit?
My solar guy says "yes" if the system is tied to your home. If you are not an electrician, add another $5-7K for installation and permitting (at least in CA).
Contact your tax professional for clarification. YMMV from state to state.
5d ago
9 Posts
Joined Apr 2016
5d ago
badaj222
5d ago
9 Posts
Quote from bogelo2 :
Yes, you can if you have basic understanding on d/c and a/c wiring, and how electricity works. If you never wire anything, you will need to do a lot of reading (chatgpt, however they are not always right) and/or watching youtube videos. First, you will need to open your main breaker panel and check if you have a 240v split phase (newer standard) or other configuration. This inverter is a 120v single phase and if you have a 240V split phase, you cannot use it for any 240v appliances. In addition, you will need a transfer switch (auto or manual) and a subpanel. I wired a few Victron multiplus and you can DM me if you have any questions.

For what it's worth, this inverter appears to be a 240v split phase. Just FYI.

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5d ago
10 Posts
Joined Sep 2024
5d ago
bogelo2
5d ago
10 Posts
Quote from badaj222 :
For what it's worth, this inverter appears to be a 240v split phase. Just FYI.
It looks like a single phase 240v for both output from the page. Might not be useful for U.S. grid.

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