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

[B-1]

Ok noted, will amend the calculations and see what I get. I did read though that Sunsynk updated the firmware and somehow the MPPT can now handle up to 13a.

If you want to oversize a bit on the current that is fine as it will help earlier/later in the day and you may be lucky and get more than the spec but I wouldn't rely on that.
If you can get a 3KW string on each MPPT that gives you a fair bit already. And double that if you add another inverter. I've done a few 16-18KWh days on 3.2kw of panels this month so it covers quite a bit of use.
You kind of need to match your essential load, batteries and panels otherwise you are just wasting money on more panels with nowhere to put the energy.

 

[PRP]

My 5kw sunsynk has 13A written on the side label for the MPPT. I am running 7 x 550w panels and see the current peak at around 12.7A without clipping from the MPPT.

 

[RonSwanson]

My 5kw sunsynk has 13A written on the side label for the MPPT. I am running 7 x 550w panels and see the current peak at around 12.7A without clipping from the MPPT.

Cool. If you are happy, then just never upgrade the firmware, and it will stay that way.

 

[PRP]

Cool. If you are happy, then just never upgrade the firmware, and it will stay that way.

Happy for now but who knows in the future. Why would they just derate it if it has that on the label ?
I have 3 x 80cm pc fans on a thermostat pulling air at the top to help the temps stay down during heavy loads.

 

[RonSwanson]

Why would they just derate it if it has that on the label ?

For the same reason that they upped and downed it again without telling anyone? No-one would know, they don't publish changelogs, my biggest gripe with Sunsynk

 

[PRP]

For the same reason that they upped and downed it again without telling anyone? No-one would know, they don't publish changelogs, my biggest gripe with Sunsynk

I can sort of understand if you purchased a product rated at 11A which they tried to improve and had to adjust back. If they however drop mine from 13A after I specifically designed my panel array around this I will be really Pi$$ed off. It says 13A on the device label, they must honor that or give me my money back.

 

[Fcon_Vpro]

Ok noted, will amend the calculations and see what I get. I did read though that Sunsynk updated the firmware and somehow the MPPT can now handle up to 13a.

I have 14x470w(2x7 strings) Jinko panels connected to my 5kw sunsynk and very happy with it. It maxes all the values well in terms of voltage, amps, power. It hits the 6500w mark when battery needs charging and 5000w mark for just usual inverting. Also consider Jinko panels as they are also tier1 and have similar warranties to Canadian and ja solar panels.

 

[RonSwanson]

I can sort of understand if you purchased a product rated at 11A which they tried to improve and had to adjust back. If they however drop mine from 13A after I specifically designed my panel array around this I will be really Pi$$ed off. It says 13A on the device label, they must honor that or give me my money back.

And if it caps the amps at 12.7?

 

[Archie1]

I have 14x470w(2x7 strings) Jinko panels connected to my 5kw sunsynk and very happy with it. It maxes all the values well in terms of voltage, amps, power. It hits the 6500w mark when battery needs charging and 5000w mark for just usual inverting. Also consider Jinko panels as they are also tier1 and have similar warranties to Canadian and ja solar panels.

Thank you. I am considering Jinko as well. Well it's between that and Canadian Solar. I just need to check how best to utilise the north facing side since that can take around 10 panels if they're ~1m in width.

 

[Mike Hoxbig]

Busy doing some building and I hit 11 kW on a 8 kW Deye without any tripping or issues...

 

[PRP]

And if it caps the amps at 12.7?

Panel theoretical is 13.1A max. Can’t tell if it is capping at 12.7A or that’s just the most the panels are producing.

 

[RonSwanson]

Panel theoretical is 13.1A max. Can’t tell if it is capping at 12.7A or that’s just the most the panels are producing.

If you set it to export to grid (i.e. fully loaded) you will see it in the PV Watts production graph, instead of a bell curve, it will flat top during peak solar radiation time (11H00-13H00). Then do an analysis of the amps, it will tell you at what amperage it starts to clip.

 

[spit]

Happy for now but who knows in the future. Why would they just derate it if it has that on the label ?
I have 3 x 80cm pc fans on a thermostat pulling air at the top to help the temps stay down during heavy loads.

How do you power the PC fans?

 

[PRP]

If you set it to export to grid (i.e. fully loaded) you will see it in the PV Watts production graph, instead of a bell curve, it will flat top during peak solar radiation time (11H00-13H00). Then do an analysis of the amps, it will tell you at what amperage it starts to clip.

I can’t find that in the app, only the voltage and current graphs on the input section where the max I see is 12.7A. Now you making me think they actually might be limiting it to that as I can’t find any graph over the last week with a higher value

How do you power the PC fans?

Use this as a thermostat

Temp Controller + Disp - 12V - Micro Robotics

Temp Controller + Disp - 12V

www.robotics.org.za

To power it a high input voltage (>60V) DC/DC connected to battery terminals inside the inverter to go to 12V. I used https://www.robotics.org.za/BUCK-12V3A
Then another DC/DC to run the fans at about 7 or 8V where they are almost silent, can’t find the one I used. Got the cheapest but it didn’t work so they exchanged it for a slightly better one in person.

I just glued three fans together and layed them on top of the inverter fins on some rubber feet. Now the heat sink doesn’t go above 40DegC.

 

[RonSwanson]

I can’t find that in the app, only the voltage and current graphs on the input section where the max I see is 12.7A. Now you making me think they actually might be limiting it to that as I can’t find any graph over the last week with a higher value

The app is a bit of a toy, I use a PC with big screen, far better. But if you really have to, just hit "Equipment" then "Inverter", select your inverter and it will take you to a place with more diverse graphs, even a custom one where you can specify the parameters.

As I stated previously, you need to be at full load to make this happen, and if you don't have batteries to charge (most of us are charged up by 09H30 in summer) then you will either need to create a load or simulate one by exporting to grid (preferably on a cloudless day) between 11H00 and 13H00 (assuming of course that your panels are N facing and tilted).

 

[RonSwanson]

Use this as a thermostat

Temp Controller + Disp - 12V - Micro Robotics

Temp Controller + Disp - 12V

www.robotics.org.za

To power it a high input voltage (>60V) DC/DC connected to battery terminals inside the inverter to go to 12V. I used https://www.robotics.org.za/BUCK-12V3A
Then another DC/DC to run the fans at about 7 or 8V where they are almost silent, can’t find the one I used. Got the cheapest but it didn’t work so they exchanged it for a slightly better one in person.

I just glued three fans together and layed them on top of the inverter fins on some rubber feet. Now the heat sink doesn’t go above 40DegC.

I used 2x AC fans on my rack, to make them silent I put them in series, but they turned too slow, so I put them in parallel, with a very high wattage (i think that it was a 40 Ohm) resistor in series.

 

[PRP]

The app is a bit of a toy, I use a PC with big screen, far better. But if you really have to, just hit "Equipment" then "Inverter", select your inverter and it will take you to a place with more diverse graphs, even a custom one where you can specify the parameters.

As I stated previously, you need to be at full load to make this happen, and if you don't have batteries to charge (most of us are charged up by 09H30 in summer) then you will either need to create a load or simulate one by exporting to grid (preferably on a cloudless day) between 11H00 and 13H00 (assuming of course that your panels are N facing and tilted).

The load is there, I am exporting to non essentials and the battery isnt full when I am testing.
On the app I was looking exactly where you suggest but there is no "W" option for the Input graphs, only I/V.
I can see this is available on the website, I however suspect it is simply generating the W graph from a V&I Multiplication anyway
Even on the website max I can see is 12.7A, maybe it is indeed capping it at this...

 

[RonSwanson]

On the app I was looking exactly where you suggest but there is no "W" option for the Input graphs, only I/V.

Select a custom graph, under parameter select P-pv (under inverter).

 

[DrJohnZoidberg]

The local guys are still waiting for stock of the batteries, but I have secured 2 of the 5.32kWh units. Also found out directly from Sunsynk that the 5.32kWh and 10.65kWh units are new and only for the SA market (hence why they're not on the official website), they're manufactured by some place called Enovance (although my Google-fu fails to find me anything useful on them).

Same warranty and still backed by Sunsynk though.

 

[DrJohnZoidberg]

Now I just need a revised quote from Powerforum store for the inverter, they seem to have the best price. Then I can hopefully start my solar journey early next year.