Sunsynk owners - how have you configured your inverter for balance of PV / Battery / Grid consumption?

DrJohnZoidberg said:
Is this still how you have yours set up? What is your battery capacity?

I'm in the process of configuring mine, but want to find safe limits so I don't get caught my pants down even if I end up wasting potential solar input.
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Nope, it has changed:

Jhb system has all System Mode entries at 30%.
Shutdown is 21%
Alarm is 25%
Restart is 26%
3x Pylontech US3000Bs

Kabookie system has all entries at 40% except 17H00 - 21H00 is 50%
Shutdown 10%
Alarm 15%
Restart 25%
3x Hubble AM-2
 
newby_investor said:
Damnit. I'm morally opposed to using cloud services like this.

Is it required to work the thing? Or just a nice to have?
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It is needed for software updates etc.

You can remove the dongle or restrict its connectivity then use Solar Assistant (Raspberry Pi + Software) which works totally locally (and also offers a DynDNS type method to access it remotely) but does not allow for inverter software updates
 
Mzezman said:
It is needed for software updates etc.

You can remove the dongle or restrict its connectivity then use Solar Assistant (Raspberry Pi + Software) which works totally locally (and also offers a DynDNS type method to access it remotely) but does not allow for inverter software updates
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I'd be curious to know what functionality the updates provide.

I'm not too keen on letting some Chinese company gather more data about my electricity use habits.

But thanks for the info, will be sure to take it into account when I scratch up the cash in another couple of months.
 
newby_investor said:
I'd be curious to know what functionality the updates provide.

I'm not too keen on letting some Chinese company gather more data about my electricity use habits.

But thanks for the info, will be sure to take it into account when I scratch up the cash in another couple of months.
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Totally reasonable - i mean there was an exploit on the Solarman platform sometime last year which exposed inverters to malicious actors so its not outside the realm of possibility.

The software updates are mostly around improvements to inverter functions / efficiency and functionality - i haven't done one since i installed mine a while back but i will likely need to as i add a newer inverter in parallel
 
It really all depends on how much battery you have and how much usage you expect.

Across my 3 x 4.8kWh batteries my reserve is set to 35% (only usable down to 15%) for 4h load shedding windows and 25% the rest of the time.
 
newby_investor said:
I'd be curious to know what functionality the updates provide.

I'm not too keen on letting some Chinese company gather more data about my electricity use habits.

But thanks for the info, will be sure to take it into account when I scratch up the cash in another couple of months.
Click to expand...

You’ll find most inverters your warranty is only valid with an internet connection.

So good luck trying to avoid that.
 
RonSwanson said:
Nope, it has changed:

Jhb system has all System Mode entries at 30%.
Shutdown is 21%
Alarm is 25%
Restart is 26%
3x Pylontech US3000Bs

Kabookie system has all entries at 40% except 17H00 - 21H00 is 50%
Shutdown 10%
Alarm 15%
Restart 25%
3x Hubble AM-2
Click to expand...
Ron, Any chance that you can post us a photo of your Kabookie system settings with a short explanation?
 
zeb said:
I see most users stick to the default times. I change them to match loadshedding slots in the area.
Time 1 - 00h00 to 04h00
Time 2 - 04h00 to 08h00
etc
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Loadshedding is no longer a concern unless you're running purely a backup system.

Change it to match your own usage habits. Eg. what level it should be at after you run your geyser, what level it should be at by bedtime, what your baseload is through the night while you're asleep and therefore what level it should be at by morning etc.

The only reason I don't set every slot to 20% is the combination of afternoon clouds we've been having in Jhb + load shedding. So I want it to be at least 80% by sundown. Will probably set it that way when we hit winter and basically get no rain...
 
Tweaking things would be a lot simpler without loadshedding. I'm still trying to figure out how to maximise my solar output without running my battery too low and not leaving enough for outages.

It annoys me that I'm sitting with a full battery already in the early afternoon, but then I have two loadshedding slots while it's dark.

My plan:

1. Going to have to automate a few things with HA, get myself some smart breakers for the geyser and pool pump and then hook into the loadshedding schedule.

2. Get a third 5kWh battery. Already enquired but stock is scarce and install lead times are long.
 
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