You have to be joking, right? That's a 55 gallons of water as a battery that require 5.5 hours to charge and store 3.9 Wh of energy. Not enough to even power a 10W LED lamp for half an hour. A 10,000 mAh power bank is 37Wh.

You can buy a residential battery today that provides real value. The limitation on batteries is for grid scale supply.

This system only had enough power to run a small light, IIRC.