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Saltwater batteries

Chris Hobson

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 Its for real all right. I have laid eyes on them here in SA. I think there is lots of potential here, especially for relatively large off grid systems and if really being green is important to you. I do a lot of battery based systems but where the grid is still available so we try to keep the battery banks small but then you run into crank amps limitations on the bigger inverters.  The first version of these that I looked at late last year could only push 0.7kW (48V pack of 2kWh) and cost approx R16500 ex vat, so to feed my typical 5kW sites would require a big, expensive bank.  I think their time will come though as the new model is much improved.

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