Wall of a building including a water supply unit for a plurality of power units

A wall of a building comprising:

• a wall body that is recessed to form a plurality of installation spaces therein;
• a water supply unit that is disposed inside said wall body, and that includes a plurality of water pipes respectively connected to said plurality of installation spaces and a plurality of actuated valves respectively mounted to said plurality of water pipes, each of said plurality of actuated valves, when opened, allowing flow of water supplied via a respective one of said plurality of water pipes to a corresponding one of said plurality of installation spaces;
• a power supply circuit that is disposed inside said wall body;
• and
• a plurality of power units that are respectively disposed in said plurality of installation spaces, and that are respectively and communicatively connected to said plurality of actuated valves of said water supply unit, each of said plurality of power units including
• a power storage module electrically connected to said power supply circuit,
• a battery management system electrically connected to said power supply circuit, communicatively connected to said power storage module, and configured to monitor an operating value of said power storage module, said battery management system controlling a corresponding actuated valve to open when the operating value is higher than a predetermined value, where said corresponding actuated valve is one of said plurality of actuated valves that corresponds to one of said plurality of installations spaces in which said power unit is disposed;
• and
• an emergency module connected to said battery management system, and including a power supply that is independent from said power supply circuit, said emergency module configured to control the corresponding actuated valve to open when said emergency module loses connection to said battery management system,
• wherein said wall is an interior wall of said building, and
• wherein said power supply maintains operation of said emergency module when said emergency module loses connection to said battery management system.