I’m not a expert Shaun but I think you’re expecting a lot out of those batteries. My experience is that the batteries always hold less power than you expect once you start hooking a inverter up to them. Do you really need that generator? If you are connected to the grid could you not re-charge to batteries from that? which is what I thought you meant to do at first.
I do think that you’ll need a bigger battery bank though.
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