NOVELTY - The system for producing hydrogen from salt water by electrolysis using alternating metal plates as the anode (1) and cathode (2), is claimed. The anode plates are made from galvanized steel. The cathode plates are made from aluminum with numerous holes of perforations in an electrolysis stack of alternating metal plates. The anode and cathode plates form a stack of even numbered galvanized plates and an odd number of perforated aluminum plates. The galvanized steel plates are joined together by gauged wire (5) and couplers and attached to a positive pole of a direct current power supply.    USE - The system is useful for producing hydrogen from salt water by electrolysis using alternating metal plates.    ADVANTAGE - The system is capable of efficiently producing hydrogen from salt water with increased production rate and enhanced extraction.    DETAILED DESCRIPTION - The system for producing hydrogen from salt water by electrolysis using alternating metal plates as the anode (1) and cathode (2), is claimed. The anode plates are made from galvanized steel. The cathode plates are made from aluminum with numerous holes of perforations in an electrolysis stack of alternating metal plates. The anode and cathode plates form a stack of even numbered galvanized plates and an odd number of perforated aluminum plates. The galvanized steel plates are joined together by gauged wire (5) and couplers and attached to a positive pole of a direct current power supply to form the anode. The perforated aluminum plates are joined together by wire and couplers and attached to the negative terminal form the cathode around which the hydrogen is extracted, where the plastic or rubber washers (6), bolts and nuts are used to insulate the anode plates from electrical current in the cathode plates to prevent a short circuit. The completed series of plates form a stack held in place by the bolts, washers and nuts, and are submerged in the salt water with the electrical current supplied when ready for the electrolysis to begin. The hydrogen and chlorine gases gather above the water's surface separated by filters, collected and safely stored in separate tanks. The perforations provide abundant contact points for the electrolysis of the salt water in a dramatic increase in the extraction of the hydrogen. The aluminum composition of the cathode reacts with the sodium hydroxide produced during electrolysis to release hydrogen from the solution using another metal for the cathode, where the chemical reaction between the aluminum plates and the sodium hydroxide causes the aluminum plates to deteriorate the replacement as part of maintenance. The galvanized steel plate and the aluminum are mounted on plastic bolts to form a stack of plates usable for the electrolysis of salt water. The galvanized steel plate is present at the beginning and end positions of the stack. The perforated aluminum and galvanized steel plates are alternated in position and held in place by non-conductive washers and bolts. Each perforated aluminum plate is sandwiched by a galvanized plate in front of and behind it in the stack to require an even number of galvanized steel plates and an odd number of perforated aluminum plates. The electrolysis stack functions with an even number of aluminum plates, and contains an extra galvanized steel plate at one end of the stack.    DESCRIPTION OF DRAWING(S) - The diagram shows a side view of an electrolysis stack.    Anode plate (1)    Cathode plate (2)    Gauge wire (5)    Washer (6)    Current supply wire (20)    Plate supply wire. (21)