Sunsynk system mode

[Isetech]

I started a new thread for this topic because this is where things get a little more interesting.

Installing these inverters and setting them up is as simple as 1+2=3. As pointed out, 99 % of issue with these inverters are installer related, which is why technical support is so critical.

The system mode is the long division sum of the installation, once you understand how it works it will fall into place.


This section and the use of smart swtiches could be the diffenrence between a 10 year ROI and a 15 year ROI

I am almost at that point where all the installations I have completed so far are now ready to start tweaking.

What would the ideal setup look like:

1/ The cost to recharge batteries is limited to solar power, but will use the grid power as a last resort.

2/ Sunny days producing max power to run appliances which are linked to smart switches, and staggered to operate at different times, the balance of power will be used to make sure the batteries are at 100 % in the evening.

3/ Once everything is done and the batteries are full, the excess power will feed back into the grid. There is a small feedback credit offered(no cahs back), ours is R135 per kwh.

4/ In the evening the batteries will keep the essential power on, and so the cycle will begin in the morning.

5/ Depending on the amount of battery support, if ther eis excess power you could use it ot suppliment the peak demands.

How the system mode works, it allows you to opitmise the power from the solar and battery to assit with the load for the grid and top up the battery.

What are the key features:

* Battery percentage<br><br>* When the battery will charge and when will it discharge.

* Where the solar power will be distributed, priority to load, to the battery or export.

Why would you even bother ticking the "use timer" feature, to distribute the power during the day when you are generating power and to save money on your utility bill.

Once you start playing with the settings you can see how the power moves from the panels to the grid.

If you want to get the most out of your system , I would focus on this section and make sure you understand how it works.

Sunsynk are apparently doing tests on the smart switches, hopefully they will be avaiable by the beginning of May 2023.

I will try update and add expamples of setups we use as we live and learn.

Feel free to add any tips you might have with regards to system mode. I dont think people understand how this works and therfore not taking advantage of the savings

Most inverters systems are installed as backup systems for load shedding, but why not take advantage and get the most out of your system.

Remote viewing just makes fine tuning your system a whole lot easier.

[Isetech]

Videos which go into system mode.


https://www.youtube.com/watch?v=FqLf...hannel=Sunsynk

https://www.youtube.com/watch?v=92LQ...BackBoneEnergy

[Isetech]

3 important things when using a Sunsynk inverter.

1/ The normal light, it miust be on before you start fiddling with stuff.

2/ The Ct must be connected and located in the correct place facing the correct direction (arrow facing the main DB, not the meter)

3/ Understanding system mode.

For everything else, "read the manual" or "request a firmware upgrade" is the answer to most support questions

There is even a group which is linked to the Deye in Hong Kong which all they do is firmaware upgrades all day long.

[Isetech]

* A setting to prevent the inverter exporting power to the grid - ‘Zero Export’.

If you tick this block, the power generated by the soalr panels, will not feedabck past the point where the CT is located. The CT should be located on the main cable from the meter.

* The ability to limit power supply to only the household loads - ‘Solar Export’.

If you tick this block, the power genrated by the solar panels will feed back into the grid.

* Set the power limits to supply only the loads connected to the LOAD port - ‘Priority to Load Only'.

If you tick this block the solar power produced will only feed to the UPS (essential load)

when you start ticking these block, you will notice a change in the source of the power ot the battery and the load.

For example the if the tick is on priority to load the battery will use grid power to charge.

[Justloadit]

Pity they do not have an intelligent mode, in which it knows the weather, so that it can change the priorities, also to figure out that at times due to the load shedding and time of day, it may be better to change the charge to mains as opposed to solar when the battery capacity is reduced. I usually do this manually, especially having 10 hours a day of load shedding, and happens to be late afternoon then early morning when it is still dark, and the day is going to be overcast.