@Will Prowse PLEASE review these.
New 10kw NHX AIO From Watts247
- Thread starter Kornbread
- Start date
Seconded
Is this grid forming inverter? Can I create a micro grid and connect my existing grid tie system to the generator port as many other inverters suggest?
I was just watching this again and it looks like all the load testing that was done up till the 12 minute mark had the grid in parallel and so the grid would have supported any surges
When he tested the heat guns the power went to 11.5kw without overloading and then he noticed that the grid was supplying 3.5kw and keeping the inverter from overloading and only then did it get turned off.
Also, I'm curious why the grid was supplying 3.5kw of an 11.5kw load when this is a 10kw inverter. Shouldn't the inverter have been supplying it's full 10kw output at least?
Last edited:
Looks like sungold power has a version out too
sungoldpower.com
10KW Hybrid Inverter 48V Split Phase
Highlight: ★ Hybrid Split Phase Inverter: 10KW Pure sine Wave Inverter 48V DC to AC 120V/240V, built in 4 MPPT Max 500VDC input each total Max 15000W PV input. ★ Multiple Charging Modes: Off Grid Solar Inverter have 4 charging modes: Only Solar, Mains First, Solar First and Mains & Solar hybrid...
sungoldpower.com
What is the difference between this:
10KW 48V Split Phase Solar Inverter
Highlight: ★ All in one unit: 10KW Pure Sine Wave Solar Inverter Combined with Max 200A battery charging, 2 MPPT Solar controller inbuilt, Max.Voltage of Open Circuit : 500VDC, Split phase (120V/240V) or Single phase (120v) output. Wifi module is included, which allows the user to view the...
sungoldpower.com
and this:
10KW Hybrid Inverter 48V Split Phase
Highlight: ★ Hybrid Split Phase Inverter: 10KW Pure sine Wave Inverter 48V DC to AC 120V/240V, built in 4 MPPT Max 500VDC input each total Max 15000W PV input. ★ Multiple Charging Modes: Off Grid Solar Inverter have 4 charging modes: Only Solar, Mains First, Solar First and Mains & Solar hybrid...
sungoldpower.com
Both are 10 KW, hybrid, 48V split phase.
One costs $1670, the other $2400. What do you get for the $730 extra?
Mike C.
It's grid interactive meaning you can sell to the grid, peak shave, and in theory zero out your grid usage with the included CTs.What is the difference between this:
10KW 48V Split Phase Solar Inverter
Highlight: ★ All in one unit: 10KW Pure Sine Wave Solar Inverter Combined with Max 200A battery charging, 2 MPPT Solar controller inbuilt, Max.Voltage of Open Circuit : 500VDC, Split phase (120V/240V) or Single phase (120v) output. Wifi module is included, which allows the user to view the...
and this:
10KW Hybrid Inverter 48V Split Phase
Highlight: ★ Hybrid Split Phase Inverter: 10KW Pure sine Wave Inverter 48V DC to AC 120V/240V, built in 4 MPPT Max 500VDC input each total Max 15000W PV input. ★ Multiple Charging Modes: Off Grid Solar Inverter have 4 charging modes: Only Solar, Mains First, Solar First and Mains & Solar hybrid...
Both are 10 KW, hybrid, 48V split phase.
One costs $1670, the other $2400. What do you get for the $730 extra?
Mike C.
It says can also sell from battery to grid, for those areas that pay well for such a feature
True grid interactivity is a big deal
Last edited:
Sorry if these are noob questions...
If I want an inverter that will do the following:
If solar, use it to power loads first, anything left over charge the battery, anything left over push into the grid. Any deficit in power, pull from the grid. If grid fails, use solar and battery to power the critical panel loads.
It seems like both units I linked above can do this or am I wrong about this? What am I missing about the feature set of the second (white) one?
Mike C.
Ok so your battery is just for backup purposes? It looks like the cheaper inverter, if you set output source priority to uti it will use solar and grid together so when solar goes down you power your loads from the grid.
If you set 34 to on grd it will push excess power to the grid.
It will only use the battery when the grid is not available.
It has no CTs so it does not have the option to use the battery to support your main panel loads.
When you are exporting to the grid, naturally main panel loads are supported but it can't use the battery to supplement that if main panel loads are greater than pv, or at night.
Lt.Dan
Solar Wizard
This one looks very very similar to the EG4 8k that was discontinued...Looks like sungold power has a version out too
10KW Hybrid Inverter 48V Split Phase
Highlight: ★ Hybrid Split Phase Inverter: 10KW Pure sine Wave Inverter 48V DC to AC 120V/240V, built in 4 MPPT Max 500VDC input each total Max 15000W PV input. ★ Multiple Charging Modes: Off Grid Solar Inverter have 4 charging modes: Only Solar, Mains First, Solar First and Mains & Solar hybrid...
View attachment 203142
Made by the same company. This one (and the watts247 one) has a touch screen though, and is cheaper
Btw sigsolar still has that one.
It's now "unbranded" and the price has been greatly reduced. Used to be $2800
Vestwoods 8KW Split Phase Hybrid Inverter | R8KL1NA 48V
Signature Solar provides solar panels, off-grid solar systems, grid-tie, and hybrid systems. Quality solar inverters, bifacial solar panels, complete solar kits, solar batteries. Featuring brands such as EG4 Electronics with their solar battery, LifePower4 and EG4 LLifePower4 and EG4 LL
signaturesolar.com
There we go, the key bit, without CTs (and the associated controls), you can't use the battery to do zero export and use your battery for local loads only.
If you compare this:
10KW Hybrid Inverter 48V Split Phase
Highlight: ★ Hybrid Split Phase Inverter: 10KW Pure sine Wave Inverter 48V DC to AC 120V/240V, built in 4 MPPT Max 500VDC input each total Max 15000W PV input. ★ Multiple Charging Modes: Off Grid Solar Inverter have 4 charging modes: Only Solar, Mains First, Solar First and Mains & Solar hybrid...
sungoldpower.com
To an EG4 18KPV unit, what are the functional differences? Obviously there are differences in power ratings and one might claim a quality/support difference, but functionally, what capabilities does the EG4 18KPV have that this unit lacks?
If I have a 10 KW critical panel load, this $2400 unit seems like it might be mostly equivalent to the 18KPV for about half the price, no?
Mike C.
I'm more interested in using the CTs to support main panel loads. That way, I don't have to worry about the size of the inverter because it works with the grid and anything it can't carry will be carried by the grid but it could potentially carry 95-98% of my annual loads
I'm not sure if this one supports ac coupling. I also don't know if it's smart enough to charge the battery based on parallel ac sources exporting to the grid.If you compare this:
10KW Hybrid Inverter 48V Split Phase
Highlight: ★ Hybrid Split Phase Inverter: 10KW Pure sine Wave Inverter 48V DC to AC 120V/240V, built in 4 MPPT Max 500VDC input each total Max 15000W PV input. ★ Multiple Charging Modes: Off Grid Solar Inverter have 4 charging modes: Only Solar, Mains First, Solar First and Mains & Solar hybrid...
To an EG4 18KPV unit, what are the functional differences? Obviously there are differences in power ratings and one might claim a quality/support difference, but functionally, what capabilities does the EG4 18KPV have that this unit lacks?
If I have a 10 KW critical panel load, this $2400 unit seems like it might be mostly equivalent to the 18KPV for about half the price, no?
Mike C.
I'm interested in DC coupling and this has 4 MPPT versus 3 for the 18KPV.
The manual shows a parallel connection diagram and setup, section 9.
They also show a 3 phase triple up diagram.
I notice in the parallel diagrams that the grid side neutral and the load side neutral are not connected together. I wonder if this is a requirement to use these boxes, or just an oversight in the drawing.
The manual and spec sheet doesn't say UL 1741, but the website does, so one wonders if that is true or not.
One critical parameter (for my use anyway) is the transfer time to battery on grid failure, that is not listed.
I'd need someone to try using this device and test it in various ways before buying one.
Mike C.
Then ac coupling won't matter to you but it's still something that an 18kpv can do that this can't.
Are you talking about the touch screen one? It seems to my that the srne based one can do everything you need, and save you some money, no?
Everyone is scared after the first megarevo debacle
Gavin Stone
Solar Addict
I think that caution is understandable. Actually megarevo came out with some firmware updates that made those older units into solid machines.
I’m testing this newer model now. I haven’t seen any glitches or issues yet. But I’m running it in open loop and essentially off grid at the moment.
Lt.Dan
Solar Wizard
I agree the Megarevo/8k had their problems, but THANKFULLY, it seemed like mostly software problems. Which most were corrected from what I can tell.
I installed one at a friend's house a couple months ago that has no solar/electrical knowledge, and he hasn't called me about it once. It just works.
It just took me a few days to figure out the software, as it was a PAIN.
I installed one at a friend's house a couple months ago that has no solar/electrical knowledge, and he hasn't called me about it once. It just works.
It just took me a few days to figure out the software, as it was a PAIN.
