58 minutes ago, GreenMan said:

We will check the 6 blocks to see if we can read the CT values. The inverter is remote so can access it via Solarman Smart. Are there values in the Device Data which show the CT readings ?

@GreenMan it looks like you do get CT values in Solarman Smart, looking at mine, see pic below - the red block, that's within the Power Grid section...

 

Edited June 25, 20215 yr by RhysMcW

16 minutes ago, Achmat said:

Not for me. For @GreenManyou can pm Leshen. 

Will do, thanks for the help 😀

9 minutes ago, RhysMcW said:

@GreenMan it looks like you do get CT values in Solarman Smart, looking at mine, see pic below - the red block, that's within the Power Grid section...

 

Will check it out tomorrow - system running on battery now so no power from grid !

23 minutes ago, GreenMan said:

Will check it out tomorrow - system running on battery now so no power from grid !

if you have a value in "ZeroExport Power", default is 20 on the 5kw, then at least that should be reading on the CT, mine is set at 60 and my CT is currently reading 57w (close enough for me)

Edited June 25, 20215 yr by RhysMcW

38 minutes ago, GreenMan said:

Will check it out tomorrow - system running on battery now so no power from grid !

You should be seeing the ct coil and a watt value on the flow diagram if you use grid or not , assuming you have not manually switched off the grid input ?

On 2021/06/20 at 3:00 PM, RhysMcW said:

I set Zero Export Power to 100W based on what I've read on the forums (here and the Synsynk one). I have a pre-paid meter, haven't had it trip out yet but also don't want it charging me for any current that does happen to go go out, as I've heard most of these newer meters do, but I guess I could reduce that a little and see how it goes. But I'll probably play more with that once I've got the CT issue sorted, haven't had a chance to go ceiling crawling yet...

Does your prepaid meter charge you when you export surplus energy to the grid?
How have you setup your inverter to allow for solar export, but that does not result in the prepaid meter charging you? 

I'm using a landis+gyr prepaid meter, running a 20 zero export "trickle flow" , the prepaid meter does not trip, but I get charged when I export to the grid, so I had to untick solar export, which sucks as I cannot benefit from surplus energy to power my geyser, stove or 2 aircons which are on the grid circuit.

 

20 minutes ago, Gareth_ZA said:

Does your prepaid meter charge you when you export surplus energy to the grid?
How have you setup your inverter to allow for solar export, but that does not result in the prepaid meter charging you? 

I'm using a landis+gyr prepaid meter, running a 20 zero export "trickle flow" , the prepaid meter does not trip, but I get charged when I export to the grid, so I had to untick solar export, which sucks as I cannot benefit from surplus energy to power my geyser, stove or 2 aircons which are on the grid circuit.

I believe most current pre-paid meters will "charge" you if you export, but that's because they're just seeing current flow and not direction of flow...

As long as you have the CT installed correctly then the inverter will not push current past the CT to the grid but will, settings dependant, push power to the non-essential loads like geyser, stove etc.
Keep zero export set but 20w may be a little low, you'll likely still end up with some push back to the grid as the inverter readjusts the current pushing to non-essential loads. I have mine at 60w and it seems to be working, with only the occasional very brief negative reading of a few watts so probably not really noticeable amount of pre-paid "charging" extra...

14 hours ago, Gareth_ZA said:

Does your prepaid meter charge you when you export surplus energy to the grid?
How have you setup your inverter to allow for solar export, but that does not result in the prepaid meter charging you? 

I'm using a landis+gyr prepaid meter, running a 20 zero export "trickle flow" , the prepaid meter does not trip, but I get charged when I export to the grid, so I had to untick solar export, which sucks as I cannot benefit from surplus energy to power my geyser, stove or 2 aircons which are on the grid circuit.

 

My own Landis Gyr has been set to 0W and hasn't ever tripped.  

7 hours ago, YellowTapemeasure said:

My own Landis Gyr has been set to 0W and hasn't ever tripped.  

That is interesting, I will try set mine to 0 Watt and see what happens.

@YellowTapemeasureare you able to export to grid without your prepiad meter from charging you? (ie. extract from the landis+gyr gemini plc2 manual attached, below, link: http://topmeters.co.za/User Guide-1.pdf )

Thanks

7.9. Reverse Power Detection and Metering
The metering circuitry can detect and measure reverse power. A filter ensures that short
periods of reverse power are ignored e.g. as a result of a motor running down and only
significant reverse power detected. A significant reverse power condition will be flagged
when there has been a continuous reverse power measurement equivalent to 50Wh.
Under reverse power conditions, metering will continue as normal i.e. credit will continue to
be decremented.

22 hours ago, RhysMcW said:

I believe most current pre-paid meters will "charge" you if you export, but that's because they're just seeing current flow and not direction of flow...

As long as you have the CT installed correctly then the inverter will not push current past the CT to the grid but will, settings dependant, push power to the non-essential loads like geyser, stove etc.
Keep zero export set but 20w may be a little low, you'll likely still end up with some push back to the grid as the inverter readjusts the current pushing to non-essential loads. I have mine at 60w and it seems to be working, with only the occasional very brief negative reading of a few watts so probably not really noticeable amount of pre-paid "charging" extra...

Hi @RhysMcW

So if I understand correctly, if I increase my "zero Export" 20w to perhaps 60w then this could/should prevent the prepaid meter from charging me when I export (say) 1kw to my grid (non-essential) circuit to power my geyser?

Thanks for clarifying,
and sorry for making you have to repeat yourself.

Edited July 11, 20214 yr by Gareth_ZA

43 minutes ago, Gareth_ZA said:

So if I understand correctly, if I increase my "zero Export" 20w to perhaps 60w then this could/should prevent the prepaid meter from charging me when I export (say) 1kw to my grid (non-essential) circuit to power my geyser?

correct, as long as you have the CT coil installed correctly and working as that's what the Sunsynk uses to detect whether it's pushing past the CT to the grid and if so then throttle back the push.

Great. I will test this tomorrow 😀

On 2021/06/18 at 7:00 PM, Nexuss said:

ahh ok yes that makes sense. The Sunsynk is an awesome inverter thats for sure. Cant wait for the new logger dongle !

I'm really looking for more info on this, and went on YouTube the other day to search for anything by Keith Gough/SunSynk but couln't pick anything. Can you please share where you might have picked up this exciting piece of info? Thanks

22 hours ago, Gareth_ZA said:

Great. I will test this tomorrow 😀

@RhysMcWunfortunately 

 

On 2021/07/11 at 6:21 PM, RhysMcW said:

correct, as long as you have the CT coil installed correctly and working as that's what the Sunsynk uses to detect whether it's pushing past the CT to the grid and if so then throttle back the push.

Unfortunately my prepaid unit still charged me. 

On 2021/06/18 at 5:04 PM, Nexuss said:

How big is your PV array? I have only one Us3000 for now and 4,5kw of pv. I never use grid charge . I set battery soc to 90 % through night from 5pm to 5 am , then it runs down to 50% at 7am and then down to 30% at 10 am . then i have a 60% soc for 2pm  .  I use about 40% of the battery in loadshedding. 

I don't know what your Priority/Essential loads stack up to in terms of consumption but looks like you're only supplying them (from battery) with 3kW x 10% initially at 17h00 and then draw down to 90% for the 12-hour period from 17h00 to 05h00 the next morning, right? Are your loads drawing from the grid at all during this period, or not? Not sure what your consumption profile looks like also but for me my 2 consumption peaks are exactly during this 12-hour period: first at 19h00 for stove; and then at 05h00 for geyser, and so at 90% SoC I'd definitely be drawing from the grid to supplement supply to the loads...

I have a Sunsynk query but will give some background prior to the queries.

I already have 4 X canadian solar 415W panels  with a small 2.4Kw inverter. I want to upgrade the inverter to the Sunsynk 5KW without any batteries for now. Batteries and more panels will come later. Below is the spec of my panels.

My queries are as follows:

1. Will the inverter work with just the 4 panels and no batteries installed? I understand the scenario when solar and utility are off.

2. I only plan on using 1 of the two MPPT controllers. Will this be a problem?

8 hours ago, Vani said:

I have a Sunsynk query but will give some background prior to the queries.

I already have 4 X canadian solar 415W panels  with a small 2.4Kw inverter. I want to upgrade the inverter to the Sunsynk 5KW without any batteries for now. Batteries and more panels will come later. Below is the spec of my panels.

My queries are as follows:

1. Will the inverter work with just the 4 panels and no batteries installed? I understand the scenario when solar and utility are off.

2. I only plan on using 1 of the two MPPT controllers. Will this be a problem?

I believe that is fine. 

1) yes

2) yes

Hi. Thanks for the feedback.

From your opening statement, i assume that you are saying that my plans will work as described. Just checking as you answered "Yes" to my 2nd question.

Just for clarity. You dont have to use both MPPT chargers.

It will still work if just one is connected?

2 minutes ago, Vani said:

Hi. Thanks for the feedback.

From your opening statement, i assume that you are saying that my plans will work as described. Just checking as you answered "Yes" to my 2nd question.

Just for clarity. You dont have to use both MPPT chargers.

It will still work if just one is connected?

Good morning. 

 

Yes, I run 2x sunsynk 5.5kva hybrid inverters and have 5x 450w panels on mppt1 on each inverter. Works fine. 

As for solar only, I do not see any issue. My system runs 100% solar as soon as the batteries are fully charged. 

 

Maybe someone else who has the same setup as you described should advise too. 

 

14 hours ago, Gareth_ZA said:

Unfortunately my prepaid unit still charged me

@Gareth_ZA then you're still pushing back to the grid based on settings...
please post a photo of your System Mode setup screen, where the times, power, Zero Export etc are.

@Gareth_ZA - please also post a photo of your Flow Chart screen and also the screen with the 6 blocks showing the various values

15 hours ago, MoeM said:

I don't know what your Priority/Essential loads stack up to in terms of consumption but looks like you're only supplying them (from battery) with 3kW x 10% initially at 17h00 and then draw down to 90% for the 12-hour period from 17h00 to 05h00 the next morning, right? Are your loads drawing from the grid at all during this period, or not? Not sure what your consumption profile looks like also but for me my 2 consumption peaks are exactly during this 12-hour period: first at 19h00 for stove; and then at 05h00 for geyser, and so at 90% SoC I'd definitely be drawing from the grid to supplement supply to the loads...

Ultimately my settings will be much different to what you use with a much larger battery . Your system mode settings should be optimized for your own system. I constantly change my settings according to weather , which would not be as necessary when you run 10kw plus of storage. 

15 hours ago, MoeM said:

I'm really looking for more info on this, and went on YouTube the other day to search for anything by Keith Gough/SunSynk but couln't pick anything. Can you please share where you might have picked up this exciting piece of info? Thanks

He mentioned it in one of his videos ,its also on their website ,currently being beta tested by some users .They sent some to SA for testing , i think @Achmat requested one and will probably share some info about it when he has received/used it a bit.

1 hour ago, Nexuss said:

He mentioned it in one of his videos ,its also on their website ,currently being beta tested by some users .They sent some to SA for testing , i think @Achmat requested one and will probably share some info about it when he has received/used it a bit.

I'm on the list but have not yet received any feedback yet. 

I will update when I do. 

On 2021/07/11 at 3:26 PM, Gareth_ZA said:

@YellowTapemeasureare you able to export to grid without your prepiad meter from charging you? (ie. extract from the landis+gyr gemini plc2 manual attached, below, link: http://topmeters.co.za/User Guide-1.pdf )
 

I haven't ever exported to grid because I am led to believe that it will decrement my credit accordingly (and as your reference to the manual shows).