NOVELTY - The system has a mounting plate (102) mounted on a top part of a frame structure (101) comprising mechanical ball valves, a first pressure gauge and a pressure regulator. An inlet tubing (103) is connected to the first pressure gauge on the mounting plate for hydrogen inlet. An outlet tubing (104) is connected to a second pressure gauge on the mounting plate for hydrogen outlet. Canisters are fastened in the frame structure and connected to the mechanical ball valves on the mounting plate using a connecting tubing for storing hydrogen in the system.    USE - Metal hydride based hydrogen storage system for use in a solar electrolysis hydrogen refueling system (claimed) for providing passive ventilation using ambient air for cooling metal hydride based hydrogen storage canisters that are utilized for storing hydrogen gas for providing power supply to vehicles such as automobile. Can also be used for providing power to a fuel cell vehicle i.e. hydrogen powered fuel cell vehicle.    ADVANTAGE - The system can connect the canisters, the mounting plate, the inlet and the outlet tubing to integrate the hydrogen storage system so as to receive and release hydrogen gas without additional tubing and instrumentation. The frame structure is designed to provide passive ventilation in the system, so that ambient air can flow from top to down, side to side and front to back and a larger surface of the canister is exposed to environment so as to improve ventilation by ambient air. The canister is separated 110 mm side by side and 125 mm top bottom to allow better air flow, so that utilization of ambient air in the system reduces weight and size of the system, thus making the storage system to be portable and applied for providing power supply in the fuel cell vehicle. The mechanical ball valves are connected to the pressure gauge that measures pressure of hydrogen gas outlet and the outlet port which connected to the outlet tubing, so that the mechanical ball valves provide control to three independent sections of canister, thus allowing continuous operation for hydrogen storing and releasing in the canister upon maintenance in other independent canister in the system, and hence increasing hydrogen storage capacity.    DETAILED DESCRIPTION - The mechanical ball valve i.e. switch.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a metal hydride based hydrogen storage system.    Frame structure (101)    Mounting plate (102)    Inlet tubing (103)    Outlet tubing (104)    Leveling mounts (105)