InfinityStainless

The only place that will beat Cape Town for wind on most days is Struisbaai ..... Working on my own design for a horizontal turbine.

I have a similar question, was looking at Pylontech up5000 4.8kWh Li-Ion solar battery 48V, but not sure if the Axpert will charge it correctly?

and teach you how to braai. 🤣 welcome...
But don't underestimate the forumites ability to do a good braai too

Not sure  I'd go for a 3 phase inverter, they do have, but your consumption may be such, that 3 X 8kW X 2 or so, may be a better solution, so 16kW per phase made up by 3 units in 3 phase config with a second unit tied to each of the 1st (dit maak seker nie baaie sin nie...)
Either way, for the factory, you may get away with a lot less battery capacity, since, I assume you will be operational mostly during daylight hours, where, hopefully, enough solar panels will provide the power... but I echo @Bobster's sentiment, I just wish Sodium Ion batteries were ready for prime time, instead of LiFePO4's...

Speak to your accountant. For business premises you should be able to write the system off as an expense.
There's your answer. You either need another Axpert, or sell it and use the money towards an 8Kw Sunsynk.

The batteries aren't much use. Even if they're in good shape they won't last nearly as long as lithium batteries, so in the long run the extra outlay on lithium is justified.
That last step is an important one. It may also show where you can optimise your current usage. It is advice that is given over and over again on this forum. Look at the savings you can make BEFORE you lay your hard earned cash down. Most households can reduce their electricity bill with some simple measures and a bit of discipline. 

I'll be selling my 3 phase efergy with hub before the end of the month.