> The efficiency of this process is approximately 50%, and it is estimated that it may be increased to almost 65% with non-consumable electrodes, wetted cathode

> The efficiency of this process is approximately 50%, and it is estimated that it may be increased to almost 65% with non-consumable electrodes, wetted cathodes, lower temperature electrolysis cells, and reduction of heat losses That's not too terrible I suppose, plus aluminium is rather convenient to store.