Chris_S

If you have space on the roof put all 8 Canadians on one side provided your inverter can handle a 8s string.

Does load include battery charging from PV? Surely they shouldn't push the firmware if they can see load on the inverter.

Run off of batteries the whole night so you can store and use more PV during the day. This will save you a lot more money on electricity. Use the grid only when you really have to. I think of Eskom as my generator for occasional use only. It's still cheaper to charge batteries from Eskom than it is from a generator.

In your case I would use a 150A fuse from main busbars to each inverter. With a large enough busbar cable lengths are not as critical but try as best as you can to keep them close to equal.

I use a 200A breaker on each 230Ah bank of batteries. This allows me to easily disconnect a bank from the main busbar for maintenance. From my main busbar to my inverter I use a 200A fused disconnect. Breakers don't trip as easily as a fuse blows so it's good to have a fuse in there. You should be using 50mmx10mm copper busbars.

I also say 1 string of 8 facing the same direction. I know you say you are a low electricity user but you going to see how on cloudy days that you are going to want more than 8 panels so keep 1 mppt open.

Is this a recent update?

Thank you. So the load number is my total daily electricity usage in the home less the losses from powering the inverter?

I'm trying to work out my daily usage from SA stats. If I look at 6th April for example my load was 13.8kWh. Is that my total 24hr usage? I'm not sure as PV was 15.7 and battery was charged and discharged equally the same so what happened to that extra PV? Eskom mains breaker is switched off and whole house is being powered off grid for now.

SA assistant documentation gives very specific info on why you can't use just any cable.

Does your inverter have CAN communication?

Nice

Use the correct SA cables. 1 to inverter and 1 to battery. That's what I'm doing on the same BMS as you

Let us know. Inverter will trip if AC is overloaded

Sticker shows usable 22A and max 28A. So if I put a parallel string of 13A panels that's 26A. On my series string of 13A panels I got 15A from cloud Edge. I wonder what 30A would do to the inverter if max is 28A

This sucks a bit. I'm sure that the sticker on the side of my 8kw says 26A+26A

Have a look in the FW thread. How old is the inverter? Have you ever updated the FW?

Fans are switched by temp sensors. If it's hot let them cool.

All good. You'll be happy with the sunsynk. 😁

Even the battery cable looks like housewire the way it holds those bends

Is that housewire on the PV input?

But that flat peak indicates inverter clipping not panels or weather. Have you updated the inverter FW? iirc the higher PV amperage only came in a later FW

Go for 2x 8kw You get redundancy incase of an inverter fault. You get 4x mppt's

My cutoff voltage is at 3.5V. Battery is now at 98% and charge current has been dropped to 10A by the bms to absorb and balance. What's great as it took only 7 cycles to drop from 50mV inbalance to around 15mV at 3.5V

I'm impressed at it all just like you😂 Seplos took flak for it's small passive balancer but I find it perfect for maintaining pack balance without the need for an active balancer.