All things Sunsynk (Deye, Inge, etc...)

[newby_investor]

Anything on non-essentials won't work during power outages, but you can optionally feed them from excess sun when the grid is available by configuring the inverter to do so. That obviously only happens during the day then.

Non essentials only works with PV and grid and not when there is loadshedding.

Great, good info to know. Excess PV for non essentials, yes, battery no.

But there is an aux loud output on the sunsynk as well that can use battery up to a set SOC.

So you can have non essentials + Aux load + essentials.

Interesting, this is the first I hear of an “Aux load”. I wonder what is the difference from essentials? Just to have an additional output? Let me look it up.

 

[AchmatK]

Potentially silly question.

Say hypothetically I've got air-cons that I want to run overnight, and I've got lots of batteries to do it.
Do they need to be on the "essential" circuit? Or can you configure the inverter to push battery into non-essential as well?

I know you could use solar power towards non-essential stuff while the sun is up, but I was wondering whether it could be configured to use battery power to do this as well. (Only while there's grid available of course.)

The other follow-up question which I can't remember seeing from all the solar threads is whether anyone has an idea what the draw from a typical modern inverter 12,000 BTU aircon is (though I guess the answer to this is "it depends" but a range would be nice). I don't have aircons (yet) but I want to size my system (mainly my inverter really) to give me the option to install them later on once the budget recovers.

My 9 000 btu inverter aircon uses about 600w and the 12 000 btu one uses about 1kw on cooling mode. Slightly more when heating.

 

[newby_investor]

My 9 000 btu inverter aircon uses about 600w and the 12 000 btu one uses about 1kw on cooling mode. Slightly more when heating.

Perfect, thanks. I presume somewhat less when the room is at the right temp to maintain?

 

[FlashSA]

Potentially silly question.

Say hypothetically I've got air-cons that I want to run overnight, and I've got lots of batteries to do it.
Do they need to be on the "essential" circuit? Or can you configure the inverter to push battery into non-essential as well?

I know you could use solar power towards non-essential stuff while the sun is up, but I was wondering whether it could be configured to use battery power to do this as well. (Only while there's grid available of course.)

The other follow-up question which I can't remember seeing from all the solar threads is whether anyone has an idea what the draw from a typical modern inverter 12,000 BTU aircon is (though I guess the answer to this is "it depends" but a range would be nice). I don't have aircons (yet) but I want to size my system (mainly my inverter really) to give me the option to install them later on once the budget recovers.

Spend more and go for inverter aircons, especially so when you intend running off battery.

I have 2x 18000btu and 1x 9000btu inverter aircons. Set them to 24 degrees medium fan and they spin down their outside compressor's once the room reaches the set temp. Extremely energy efficient compared to the traditional 100% on non-inverter aircons (traditional aircons very rarely switch off their compressor).

I am able to run all 3, including the house standby draw, for about 3300w usage on the SunSynk.

As an aside, one of the 18000btu compressors is badly exposed to afternoon sun and this makes it work harder than the other one which is sheltered. I'm considering an awning for it or getting it dropped down the exterior wall into some shade.

Oh, and my 2x 18k btu's are wifi enabled. I switch them on from the office when I see the panels are idling in the early afternoon. (All my loads are on essentials as I self manage)

 

[newby_investor]

Spend more and go for inverter aircons, especially so when you intend running off battery.

I have 2x 18000btu and 1x 9000btu inverter aircons. Set them to 24 degrees medium fan and they spin down their outside compressor's once the room reaches the set temp. Extremely energy efficient compared to the traditional 100% on non-inverter aircons (traditional aircons very rarely switch off their compressor).

I am able to run all 3, including the house standby draw, for about 3300w usage on the SunSynk.

As an aside, one of the 18000btu compressors is badly exposed to afternoon sun and this makes it work harder than the other one which is sheltered. I'm considering an awning for it or getting it dropped down the exterior wall into some shade.

Oh, and my 2x 18k btu's are wifi enabled. I switch them on from the office when I see the panels are idling in the early afternoon. (All my loads are on essentials as I self manage)

Thanks for the input, very informative. I’d probably go for 1x12 and 2x9 just because of the size of my rooms.

I’m more concerned about heating in winter than cooling in summer just because of my stupidly cold house. Heaters running overnight sent the electricity bill through the roof here and I understand air cons have heat pumps which can heat more efficiently Han heaters.

 

[B-1]

Great, good info to know. Excess PV for non essentials, yes, battery no.



Interesting, this is the first I hear of an “Aux load”. I wonder what is the difference from essentials? Just to have an additional output? Let me look it up.

There are 3 termination points on the inverter:

AC input (this is the grid in and you can export power here to grid or non essentials. Non essentials are pretty much seen as part of the grid and the CT coil helps to export just enough to feed the non essential loads)

Essential load output (this is basically the UPS part of the inverter)

Aux port input/output configurable (this port can be configured for 3 things generator input, micro inverter input or as an output. Sunsynk often talk about adding a hot water tank to it so they mean for it to be used for a geyser.)

 

[B-1]

I noticed my non-essentials using battery when sun wasn't enough. IIRC 2kw came from solar and 1 from battery up to the point where my min battery SOC was reached (system work mode 2)

You are right not sure why I said PV only, if you allow for grid export from battery it will use that as well. So the SOC on the mode screen.

 

[Fcon_Vpro]

Great, good info to know. Excess PV for non essentials, yes, battery no.



Interesting, this is the first I hear of an “Aux load”. I wonder what is the difference from essentials? Just to have an additional output? Let me look it up.

Just confirming for you that you can use your battery for non-essentials as long as there is grid.
Think it was mentioned after this post but just confirming it for you.
During the day I sometimes use my battery to power my 4kw geyser element that's on non-essentials when there are clouds rolling over and solar power drops off below my requirements.

 

[Koosvanwyk]

Non essentials only works with PV and grid and not when there is loadshedding.

But there is an aux load output on the sunsynk as well that can use battery up to a set SOC.

So you can have non essentials + Aux load + essentials.

This is not correct.

When grid is present and your settings allow this then the non essential circuit will and can be powered from any DC source including batteries.

 

[DrJohnZoidberg]

Highest peak solar output I’ve got out of my system so far, probably about maxing it out when considering efficiency losses.

The inverter was outputting 8.2kw for a bit earlier so 8kw inverter was a good choice.

 

[newby_investor]

Thanks for the info all, very helpful.

 

[SauRoNZA]

Highest peak solar output I’ve got out of my system so far, probably about maxing it out when considering efficiency losses.

The inverter was outputting 8.2kw for a bit earlier so 8kw inverter was a good choice.

Remember the 8kW only applies to DC.

The Sunsynk can passthrough more than double that using AC…when it’s available.

 

[AchmatK]

So today I noticed the inverter feeding back to the grid. About 30w. The meter was indeed spinning backwards. It happened while I was feeding non-essentials from the sun. What I don't get is why - it's always set to take 20w from the grid (grid trickle feed). The only thing changed recently is to allow it to export to non essentials...

The CT coil is not instant so if any non essential loads switches off its takes a few second for the inverter adjust the non essential output so you will get some trickling back to the grid.

 

[newby_investor]

More than a few seconds. My meter is in the street about 50M from my inverter in the garage. I still noticed it, got my gate key inside and went out to the meter and it was spinning backwards. I recorded it for around 20 seconds... Seemed to be doing it the whole time I was exporting to non essentials.

What municipality are you in? Is that the meter that determines your bill?

In the block of flats in CT that I used to live in, they had a "meter room" in the bottom of the block with a bunch of spinning disc meters which they didn't bother to remove after everyone had been converted to prepaid. They don't bother to come and read them anymore though.

 

[Fcon_Vpro]

So today I noticed the inverter feeding back to the grid. About 30w. The meter was indeed spinning backwards. It happened while I was feeding non-essentials from the sun. What I don't get is why - it's always set to take 20w from the grid (grid trickle feed). The only thing changed recently is to allow it to export to non essentials...

Maybe just a small discrepancy with the CT? Not sure.

A small bit does get backfed with non-essentials.
Here are my export figures for past few months:

 

[kolaval]

Home Assistant into Google Home to play Rick Astley on repeat until grid comes back on...

Megarevo opinions?​

 

[Fcon_Vpro]

What app is that?

Sunsynk

 

[Fcon_Vpro]

Megarevo opinions?​

This is a Deye and Deye clone thread. Probably the wrong place to ask.

But here is a result from a quick Google. While it looks similar to the Deyes, it doesn't have the same lcd or pcb so u don't think the title of the powerforum thread is accurate.

EG4/Megarevo 8kVA Split Phase 240/120v Review on Will Prowse Channel - from the same factory as the Sunsynk/DEYE inverters I guess

Interesting review of the EG4/Megarevo 8kVA 240/120v inverters on Will Prowse's Youtube Channel, looks like it comes out of the DEYE factory.

powerforum.co.za

 

[AchmatK]

Megarevo opinions?​

Definitely a deye clone possibly out of the same factory but that display is something that would put me off. No reason to still use 80s display technology when colour touch screen displays are cheap as chips especially coming from China.

That display reminds me have the hand held tetris games from the 80s and 90s.

 

[kolaval]

Who distributes and supports? Why get that over a Deye?

Saw them here and I was curious.
There seems to be lots of brands I do not recognize coming in.

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It'd be very interesting to know numbers on who has what and how many issues they've had.