Photovoltaic System Energy Storage using Water Electrolysis

It is known that, the available power from a photovoltaic system is unpredicted and differs with climatic changes, so it has an intermittent nature, in other words it is unable to supply the load continuously and steadily. Because of that, storage methods of its energy must be studied to use it again in a way that could be predicted. Hydrogen production is one of these methods by connecting the PV system to water electrolysers, and this stored hydrogen could be used either in fuel cells or burning it to get thermal energy. This study focuses on PV system and the available energy taken from it, and the electrolysers and its requirements and products. Making a mathematical model would be done and plotting the curves that represent the system by programming it using MATLAB. A simple numeral example that clears the system would be calculated. By this way, the energy efficiency would be between 23 to 67 % according to the way the produced hydrogen is used