New NHX 12 killowatt

[menchelke]

Its Here! 18kW Pv input NHX 12kW with built in Breakers for battery and AC teminals12kW 120V/240V output – Black November Special – Watts247 Wholesale

watts247.com

I was pretty much settling on the NHX 10kw from watts 247 then I saw this 12kw just launched, and almost bought it, but slept on it.
Looks like the 18k clone basically, but it has 4 x mppt.

Then seen that video with the new EG4 Flexboss, Gridboss, and 12000xp.




For off grid only, small single eg4 hybrid 1ton minisplit, and 2 pcs, and some lights., I do want the thing to be outdoor rated even though it will be inside, just so it stays less dusty.

Assuming they all end up being reliable, which would you guys choose? No grid required at all, and I like the idea of 4x mppt, so if anyone knows if the new eg4s have three or 4 mppts?

 

[julian2030]

Thats really interesting. I'm choosing my inverter now. Im between the EG4 18kpv, Solark 15k, or the megarevo 16kw/24kw pv. Not sure if its worth waiting for but the flexboss 21 will have 3 MTTPs for up to 21kw of solar.

The winner seems to be the EG4 18kpv as far as price, features, software, and support.

The value play I think is the megarevo product seems like good hardware but not so good software. You do get more for less as far as hardware. The big issue here is software and reliability. It does seem like they are getting better overall.

The Solark is proven but man its expensive. You get what you pay for and they have amazing support.

The NHX 10k 12k im sure you know are relabled megarevo 10kw and 12kw units. I contacted megarevo directly and they are shipping out the 16kw units that can do 24kw of pv and 16kw of ac output. Which makes it the most powerful unit of all the hybrid units I have seen.

It seems the 247 watts is coming out with the 16kw unit soon because they already have the manual ready for it.

 

[menchelke]

Thats really interesting. I'm choosing my inverter now. Im between the EG4 18kpv, Solark 15k, or the megarevo 16kw/24kw pv. Not sure if its worth waiting for but the flexboss 21 will have 3 MTTPs for up to 21kw of solar.

The winner seems to be the EG4 18kpv as far as price, features, software, and support.

The value play I think is the megarevo product seems like good hardware but not so good software. You do get more for less as far as hardware. The big issue here is software and reliability. It does seem like they are getting better overall.

The Solark is proven but man its expensive. You get what you pay for and they have amazing support.

The NHX 10k 12k im sure you know are relabled megarevo 10kw and 12kw units. I contacted megarevo directly and they are shipping out the 16kw units that can do 24kw of pv and 16kw of ac output. Which makes it the most powerful unit of all the hybrid units I have seen.

It seems the 247 watts is coming out with the 16kw unit soon because they already have the manual ready for it.

I wasn't aware of the 16kw watts having a manual for it, What is the price when you contacted about the megarevo 16?

 

[julian2030]

10kw Split Inverter:

Price: $2024
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2024+$30+$702=$2756

12kw Split Inverter:

Price: $2222
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2222+$30+$702=$2954

16kw Split Inverter:

Price: $2583
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2583+$30+$702=$3315

 

[jeeptj12]

I've been kicking the NHX but my concern with Watts is Ian seems to be a one man show. If something God forbid happens to him, is the business still viable?

 

[julian2030]

Yeah good point, its like those off brand solar panels when you turn around the company went belly up. The good thing is that these Megarevo relabeled inverter seem popular. The megarevo folks are still developing software.

 

[julian2030]

I wanted to share some feedback for anyone considering buying from Megarevo. I reached out to Beene Energy on YouTube about his experience with Megarevo's 8k inverters, as he's currently using seven of the older, non-touchscreen models. He’s part of Beene Brothers.

I asked why he doesn’t carry Megarevo products in his shop if he's using them in his setup. He told me that Megarevo’s support has ghosted him, making it impossible to get assistance or warranty claims. This suggests that buying directly from Megarevo could be risky. I’m not sure if Ian from 247Watts has faced similar issues, but it’s worth considering if support is a concern.

Has anyone else experienced something similar?

I was thinking of getting one of the discounted 8k Vestwood inverters, but the contact form on their website doesn’t work, which has made me rethink purchasing.

I’m leaning toward the Lux Power EG4 units. If you buy the NHX units from 247Watts, Ian should hopefully offer support.

Beene also shared the following comment about the latest firmware update for the 8k inverter:

Comment: "That's a good sign they are improving things. Not having export here, I'm dumping my extra solar into the A/C."

Beene’s Response: "It’s been a long time coming. I’m afraid they lost momentum by pushing the product too early. The hardware seems good, but as Mr. Prouse points out, the software and documentation, especially across language barriers, hurt usability."

 

[jtran69]

10kw Split Inverter:

Price: $2024
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2024+$30+$702=$2756

12kw Split Inverter:

Price: $2222
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2222+$30+$702=$2954

16kw Split Inverter:

Price: $2583
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2583+$30+$702=$3315

$702 shipping from China?

 

[julian2030]

Yes! They told me that sea freight is not available because minimum weight needs to be 750 pounds from what I remember.

On another note. I emailed Ian from 247watts. I asked him about the 12kw unit. Pretty much asking him about reliability and frimware. He said all good so far. In my case I need zero export. He said it wroks well.

 

[koppted]

10kw Split Inverter:

Price: $2024
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2024+$30+$702=$2756

12kw Split Inverter:

Price: $2222
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2222+$30+$702=$2954

16kw Split Inverter:

Price: $2583
WIFI for inverter:$30
Door to door freight cost: $702
Total amount:$2583+$30+$702=$3315

Do you have a link to the actual megarevo 16kw inverter? Haven't heard about this one.

 

[koppted]

Its Here! 18kW Pv input NHX 12kW with built in Breakers for battery and AC teminals12kW 120V/240V output – Black November Special – Watts247 Wholesale

watts247.com

I was pretty much settling on the NHX 10kw from watts 247 then I saw this 12kw just launched, and almost bought it, but slept on it.
Looks like the 18k clone basically, but it has 4 x mppt.

Then seen that video with the new EG4 Flexboss, Gridboss, and 12000xp.




For off grid only, small single eg4 hybrid 1ton minisplit, and 2 pcs, and some lights., I do want the thing to be outdoor rated even though it will be inside, just so it stays less dusty.

Assuming they all end up being reliable, which would you guys choose? No grid required at all, and I like the idea of 4x mppt, so if anyone knows if the new eg4s have three or 4 mppts?

Why does this new inverter weigh 145lbs? It reminds me of the Voltronics heavy and inefficiently designed LVX6048WP, which still gives me nightmares.

 

[julian2030]

https://www.megarevo.com.cn/upload/download/R12~R16KLNA-P6%20series%20(Colorscreen)%20hybrid%20inverter%20user%20manual.pdf

 

[menchelke]

So, I went ahead and ordered the NHX 12kw from Watts247. Should be here in a few days, I can probably do an unboxing video, but it will take me a bit to get it all set up, as I got a few things ahead of it and I move and work slowly.

 

[Kornbread]

So, I went ahead and ordered the NHX 12kw from Watts247. Should be here in a few days, I can probably do an unboxing video, but it will take me a bit to get it all set up, as I got a few things ahead of it and I move and work slowly.

Do a complete review and post it.

 

[menchelke]

I have received the unit. Still, I have a multitude of things to get done before I can even get it mounted. Like, I probably won't even have my panels up until end of year, sometime next year. I have been buying parts as I save for them.

Maybe I should start a full build thread in one of the sub forums, but post back here, once I have some info. I might be able to run it temp setup with batteries only and panels on the ground sometime within that timeframe too.

Anyway, the unit looks good. Haha. A deciding factor, which may seem dumb to some people, but I liked how easy the display on the unit is to understand even for solar novices, and for my wife and kids. (based on videos of the 10kw version)

 

[Kornbread]

I have received the unit. Still, I have a multitude of things to get done before I can even get it mounted. Like, I probably won't even have my panels up until end of year, sometime next year. I have been buying parts as I save for them.

Maybe I should start a full build thread in one of the sub forums, but post back here, once I have some info. I might be able to run it temp setup with batteries only and panels on the ground sometime within that timeframe too.

Anyway, the unit looks good. Haha. A deciding factor, which may seem dumb to some people, but I liked how easy the display on the unit is to understand even for solar novices, and for my wife and kids. (based on videos of the 10kw version)

For those times you might be away, it would be nice to have something the rest of the family could manage.

I'd do just that, a build thread and report back here on the inverter.

 

[JohnGyver]

I have received the unit. Still, I have a multitude of things to get done before I can even get it mounted. Like, I probably won't even have my panels up until end of year, sometime next year. I have been buying parts as I save for them.

Maybe I should start a full build thread in one of the sub forums, but post back here, once I have some info. I might be able to run it temp setup with batteries only and panels on the ground sometime within that timeframe too.

Anyway, the unit looks good. Haha. A deciding factor, which may seem dumb to some people, but I liked how easy the display on the unit is to understand even for solar novices, and for my wife and kids. (based on videos of the 10kw version)

Congrats on the purchase! I am making my purchase of the same unit later this month. I do have one 4.8 kw tilt array up and ready... I just need the inverter and one battery to get it going.... and to trench 120 feet of Texas clay soil down here in the Houston area. (That's the part I hate the most!)

So what are your first impressions on your unboxing? Ian is making a video for the 12k... but other than that upcoming event there is very little (nothing actually) on the NHX 12k.

I think you made a great choice! I have researched high and low... every brand, every YouTube video and many posts on DIY Solar Forum.

I am in the electronics world and I know fairly well what a solid looking PCB design looks like vs typical cheap Chinese junk boards. The Megarevo stuff looks very well built and solid to me. Sungold and some of the other stuff out there are sometimes held together with shipping banding straps, literally. I saw a breakdown review on the Sungold wall battery that Rodney Hunt did.... the cells were retained together with 2 green plastic shipping straps.... what??? That is not a safe or reliable design like many of the other battery tear-downs that I have seen. Anyway, I look at the NHX 12k being the budget friend alternative to the EG4 18kpv. Hopefully the NHX 12k is exactly that!

John

 

[menchelke]

Congrats on the purchase! I am making my purchase of the same unit later this month. I do have one 4.8 kw tilt array up and ready... I just need the inverter and one battery to get it going.... and to trench 120 feet of Texas clay soil down here in the Houston area. (That's the part I hate the most!)

So what are your first impressions on your unboxing? Ian is making a video for the 12k... but other than that upcoming event there is very little (nothing actually) on the NHX 12k.

I think you made a great choice! I have researched high and low... every brand, every YouTube video and many posts on DIY Solar Forum.

I am in the electronics world and I know fairly well what a solid looking PCB design looks like vs typical cheap Chinese junk boards. The Megarevo stuff looks very well built and solid to me. Sungold and some of the other stuff out there are sometimes held together with shipping banding straps, literally. I saw a breakdown review on the Sungold wall battery that Rodney Hunt did.... the cells were retained together with 2 green plastic shipping straps.... what??? That is not a safe or reliable design like many of the other battery tear-downs that I have seen. Anyway, I look at the NHX 12k being the budget friend alternative to the EG4 18kpv. Hopefully the NHX 12k is exactly that!

John

I have went so far as opening the box, and opening the front panel and staring at it. I haven't attempted to even lift the unit out yet.

I have 2 shipping containers 20ft apart in parallel and I still have to build a small solar shed to house the batteries and inverter in to act as the main power building. I have 36x 400 watt solar panels that I will be mounting on the 2 shipping containers, 18 per container. But I haven't made it that far yet either. I still need to pour my footings for my shipping containers and level and square them up.

So I am still a ways off. I am waiting for the video everyone keeps saying Ian is working on.

My other choice would have been the just released EG4 12000xp. It has only 2x mppt but 4 sttrings the amps are higher, so likely it can take the same or even more incoming solar.

The rest of the specs are fairly similar, but it looks like the NHX more closely resembles the 18kpv. I am doing offgrid only, but wanted the option maybe in the future to use that ac passthrough, and I like the simple color touch screen, as it will make it easy for my wife and my kids to easily understand on the surface whats going on.

 

[JohnGyver]

Do you have a link to the actual megarevo 16kw inverter? Haven't heard about this one.

From what I have seen there are two Megarevo platforms. The 5k-10k variants all look exactly alike. The 12k and 16k look different and are larger. Based on what I have seen on the 12k is that the PCB layout looks different from the smaller variants, as are all the connections. I don't know how much of the DNA is shared, but in a breif statement from Denny @ Amensolar he said in an email about the 10k model "old structure model"... he was speaking Ching-lish... so I took that as an older design and the 12k is a newer design. I would love to see the marketing on any upgrades that were made between the two platforms outside of the raw specs.

In the 12k manual they show specs on the 16k version as well... but I have not seen a 16k listed for sale anywhere stateside, just the 12k @ Watts247. Amensolar does not list the 16k version from what I can see.

Here is the link to the Megarevo website for both the 12k and 16k model specs;

MEGAREVO - 5-10kW American ESS Split-Phase Hybrid Inverter

Designed for American Users. MEGAREVO 48V split phase hybrid inverter meets power demands of up to 10KW for various home energy storage applications.

www.megarevopower.com

 

[menchelke]

Ahh, I forgot, I mean it seems quality. I haven't taken it apart to stare at it more, or take pictures. I guess I could do that here shortly, wouldn't be to much trouble take the cover off and look at it. I don't touch no internals, and definitely am not an expert on internal electric parts.

 

[menchelke]

Heres look inside.

 

[JohnGyver]

So I borrowed this image from Gavin's video on the NHX 10k... plus added to yours @menchelke.... 10k board next to 12k board.... I'd say that they do share some of the DNA between the two, although the relays and coils are set up much differently on the 12k on the right mid/lower side of the board. The top area of the board and the left side of the board are pretty close to one another. I like it! It tells me that they didn't completely throw out the previous design, just improved for the higher power requirements I would assume.

 

[JohnGyver]

Also, I wanted to share some key notes from Denny Wu @ Amensolar... his responses to some of my questions;

1) The EG4 18kpv has recently announced that the EG4 18kpv is now EMP hardened from EMP attack and I assume solar flares from the sun. Since the Amensolar 12k is based on the same specs as the EG4 18kpv, does the Amensolar unit share the EMP hardened capability?

** ANSWER** - Our 12KW inverter is also with 18kpv input, EMP ability available (not sure what he meant by this)

2) Is the software the same for the 10k model and the 12k model? Are there any plans to automate future software updates through wifi automatically?

** ANSWER ** -
The software is different 10KW from 12KW,

In fact, the upgrade process need two step to finish, especilly the display need a U-Disc to upgrade,so it hard to realize to upgrad on line, and at this moment our machine with the newest software, not suggest upgrade frequently.

3) What size breaker do I need to use on the "Load" output of the 12k inverter to my sub panel?

The inverter says it has a 200 amp pass through but the installation manual that "Nominal AC Current is 50A and Max AC current is 55A". So this is confusing to me on the wiring of the system from the inverter to the sub panel it will feed.

** ANSWER ** (This one still is not clear to me) - Pls choose the breaker 63A or 80A is OK.

 

[Tayne]

Well I recently got mine and installed it. Runs great! I have only had it up and running for a few days. Currently just using it to charge and discharge the battery. My solar system is Enphase. I wanted the ability to add batteries. To store and use excess solar.
Enphase said it could not be connected down stream from their system and CT’s.
So I installed it at the meter all-in-one. I was fortunate for that. I was able to add 2-100 amp breakers and run 3 awg wires to inverter.
It was a little confusing at first because it has 2-Inputs for the grid. But this is how it gets 200amps. 100 each. They wire to 125amp breakers in the inverter. L1’s together in one and L2’s in the second. The batteries connection are also tandem. 2 positive on 2 lugs and 2 negative’s on 2 lugs.
I only connected the grid lines and the battery lines. Nothing on the load breakers. I was able to charge but not discharge. Then I figured out you need to turn on the “load breakers” even though I was only using the grid connections. Once I flipped these breakers. I was able to get the batteries to discharge and feed the loads.
The software layout is very similar to the 10k. But has some slightly different options.
The 12k is a much better system. Way better wire management with breakers. Also better support for AC coupling but I haven’t updated the bios for that or tried it yet. However this is a reason I upgraded to this one. I will move some of my Enphase solar array to this new inverter.
Other than not turning on the breaker. I haven’t had any issues with it. But I am still figuring it out.
The same Solar Assistant cable and driver works. However it does have an Ethernet/485/RJ45 port I will try as well.
Still need to figure out how to automate the charge and discharge based on excess solar. But that is a different topic.
I really like this one. I was very close to getting the Lux 12K, but this one was a better deal and didn’t have to pay shipping. I am about an hour away from Watts247

 

[Tayne]

Btw I haven seen anything saying it is EMP hardened. But I think you can just add a $150 surge protector to your panel and it protects all your circuits. It’s a bit of a gimmick, unless you get lots lightning in your area. Square D makes one that fits my meter panel that makes more sense for me.