I had a look at these before I built my own. They were still quite pricey not to mention shipping. The inverter has a huge transformer that weighs allot and I see they didn't indicate the weight, which if remember was over 200 Kgs and shipping was estimated at just under $3000.00 to my door.
30kwh is huge, even half that is hard to satisfy with enough panels and batteries.
Randen
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