Hi

 

It seem the Growatt can also blend Eskom and Solar.

 

Also looking at the spec sheet you can also run the Growatt without a battery. So does this mean you can also use the Growatt to feed power to other loads not on the inverter backup?

 

 

 

 

The Growatt/Axpert are off grid inverters, not a hybrid grid tied like eg a Sunsynk, cannot feed back into the grid, eg non essential 

How does it work with a battery?

47 minutes ago, Tariq said:

The Growatt/Axpert are off grid inverters, not a hybrid grid tied like eg a Sunsynk, cannot feed back into the grid, eg non essential 

not all growatts are off grid, the ES model can work without a battery and blends solar and grid 

Yes I’m referring to the ES 

when it runs with no battery is it off grid 

4 minutes ago, MNK1234 said:

Yes I’m referring to the ES 

when it runs with no battery is it off grid 

When it runs without a battery, it is grid tie and when using a battery it acts as an off grid inverter. ES model is hybrid, you can use it as an off grid or grid tie but you can not compare it with sunsynk, hence the price difference. But it basically does what the sunsynk does 

Edited February 5, 20224 yr by hoohloc

So what’s the difference?

 

@hoohloc, are you saying that a Growatt can be set up the same as a Sunsynk, where it will feed solar/battery to appliances on the grid side

   I don’t know much about the Growatt

Just now, Tariq said:

@hoohloc, are you saying that a Growatt can be set up the same as a Sunsynk, where it will feed solar/battery to appliances on the grid side

   I don’t know much about the Growatt

nope, not saying that. I'm saying it can work as a grid tie, without a battery like sunsynk. it can also work as an off grid inverter using a battery, just like sunsynk. as for the other stuff like feeding appliances on the grid side, I'm not sure. But if it was able to do that, I bet it would be priced like sunsynk 😀

in my opinion skip growatt go sunsynk. its a few K difference, but you wont look back with a sunsynk. Sorry growatt owners, no offense meant.

I typically determine a products actual value by its 2nd hand value, ie you want to sell it and the market interest/price point attainable, before I even buy it. Compare away.

Sunsynk also has a proven comprehensive feature set, no mess no fuss.

 

Edited February 5, 20224 yr by Nitrious

In my opinion the biggest advantage is the dual MPPT of the Sunsynk. 

Sunsynk all the way😃

But the growatt MPPT current rating is much higher

12 minutes ago, MNK1234 said:

But the growatt MPPT current rating is much higher

The Sunsynk gives you two MPPT rated at 11A each, thus 22A total. Growatt 18A max.
 

But its not cumulative is it?

 

The panel  current output is 13A, you can't split a panel over 2 MPPT

the sunsynk mppt is 13A per mppt (with firmware upgrade)

this then usually involves 2x strings of 6x - 7x 540w panels, each string connects to a mppt.

7x panels helps in winter when daylight hours are shorter, 6x is marginally cheaper.

So you'll wind up with a total of 12x-14x 540w panels connected.

18A is btw very hard to match with modern panel current outputs being what they are. 22A is much much easier. (8kw sunsynk for example)

My inverters max pv current is also 18A, even looked at 700w panels with a max output of 17A and/or tons of 360w panels which I can get cheap.  either way I might wind up having to ship panels in.

In the end it may just be easier to just upgrade to a sunsynk, and get 540w panels. (time and effort)

the jury is still out on my upgrades atm, busy deciding, and luckily prices are slowly dropping back to normal while I do. However dont wind up is this position, start off on the right track from day 1.

Edited February 6, 20224 yr by Nitrious

With the 540W panels being at 13.75W I would imagine you at the very limit of the MPPT. 

 

Would that mean any larger panel will be limited? 

14 minutes ago, MNK1234 said:

With the 540W panels being at 13.75W I would imagine you at the very limit of the MPPT. 

 

Would that mean any larger panel will be limited? 

That depends on the specific panel used , if the panel ran at higher voltage but at less current then you could have a larger wattage panel (than 540). Currently they dont make panels like that that i am aware of , the canadian solar 600w panel is a higher current panel at 18,47Amp short circuit. Higher voltage and less Amps is better as it will mean you can use thinner wires from panels to inverter,and the mppts operate more efficiently at higher voltage.

Edited February 6, 20224 yr by Nexuss

The mppt will cap you (current limiting) at 13A, anything more will be wasted. Since the 540w panel is 13A, it's why it's a great match

and I'm assuming the deye and sunsynk are the same?

4 minutes ago, MNK1234 said:

and I'm assuming the deye and sunsynk are the same?

The hardware is the same but the software interface is different and better on the sunsynk IMO def worth paying a bit more.