In the context of the decarbonisation of the high-temperature industry, the H2GLASS project focuses on the production of hydrogen in order to substitute the natural gas: hydrogen will be the only fuel for the furnace combustion into a glass and aluminum industry. The hydrogen microgrid presented in the thesis is composed by a Polymer Electrolyte Membrane (PEM) as electrolyser, the compressor and the tank as the storage unit and an additional bottle tank will provide an extra supply of hydrogen. The power supply of the electrolyser comes from electrical grid and photovoltaic (PV) generation, with data relative to the Catalunia region.