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Upgrading a system that was installed 3.5 years ago

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My system consists of 1 Axpert 5 KVA inverter, 12 PV panels and 2 5.6 kW GCL batteries

I'm thinking about a system upgrade by adding another Axpert  5 KVA inverter connected in parallel and one more GCL battery

Inverter model number as indicated on the Rating Plate on the side of the unit is M-5K -64-PAR-A    Dated of manufacture is indicated as 1/2019

Battery details as indicated in the manual are E-KwBe NC/S 5.6 kWh

I'm not sure if the additional inverter and battery to match those in the current installation are still available here in South Africa 

my question for today is: 

Is a system upgrade as indicated above a practical option??

If you can still get the compatible Inverter and the same batteries, then this is your best bet.
I would go the same way if I were to upgrade my system.
The advantage of two parallel inverters is that should one of them ever give problems and is out of action for repair, then you are not without your Solar energy, just scaled down for a while.
Good luck with finding the items you need. 👍

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