A technique is disclosed for a system and method for combined production of power and hydrogen utilizing the heat from a first working fluid heated by a geothermal energy source using a steam generator and an electrolyzer designed to receive the steam produced by the steam generator for the production of hydrogen and oxygen using electrolysis.
A system for geothermal hydrogen production comprising feed water, an input pipe extending into the earth to a sufficient depth to acquire geothermal heat, the geothermal heat capable of raising the temperature of the feed water to change the feed water from a mostly liquid state to a mostly gaseous state, an output pipe extending up through the earth to a surface of the earth, at least one filtering device coupled to and in flow communication with the output pipe to filter the heated feed water, a turbine operatively coupled to the at least one filtering device and in fluid communication with the heated feed water, a generator operatively coupled to the turbine to generate electricity, and an electrolysis apparatus coupled to and in flow communication with the at least one filtering device to receive the heated feed water, the electrolysis apparatus electrically coupled to the generator, the electrolysis apparatus is configured to disassociate the heated feed water into hydrogen and oxygen.