Emptying system for emptying a reservoir with a fluid control system for a valve for connecting the reservoir to a vent

An energy storage system, comprising:

• a fluid storage device, comprising:
• at least one reservoir containing a pressurized fluid;
• and
• an emptying system for emptying said at least one reservoir, comprising:
• for each reservoir:
• a vent discharging fluid out of the reservoir;
• and
• a discharge valve connecting the reservoir to said vent, the discharge valve being movable between an open configuration, in which the discharge valve fluidly connects the at least one reservoir to said vent, and a closed configuration, in which the at least one reservoir and said vent are fluidly isolated from one another;
• a fluid control system controlling the movement of each discharge valve to the open configuration by action of an operating fluid on the discharge valve, comprising an operating station, arranged outside a danger zone around each reservoir, comprising at least one reversible free connection for connecting to one or more fluid pipes of a supply device for supplying the fluid control system with the operating fluid;
• and
• for each discharge valve:
• a return member returning the discharge valve to the closed configuration;
• and
• a fluid pipe fluidly connecting said operating station to the discharge valve;
• a device producing a first and a second secondary fluid by electrolysis of at least one primary fluid, wherein said fluid storage device stores the first and secondary fluids separately;
• and
• a fuel cell generating electrical energy by oxidation-reduction reaction between the first and second secondary fluids.