Sizing of photovoltaic system coupled with hydrogen/oxygen storage based on the ORIENTE model

PEPITE is a project funded by the French ANR PAN-H research program. This project concerns, among various other tasks, a demonstration of a weather station electricity supply with help of a PV/FC/EL hybrid system located at the CEA center of Cadarache (France). To design a relevant sizing for this demonstration system, a complete sizing tool has been developed via a new numerical optimizing code named ORIENTE. It uses Matlab software based on sequential running time.The demonstration system will be composed of a PV array, a PEM fuel cell system and a PEM electrolyzer, batteries, storage tanks for H2, O2 and H2O, as well as associated converters. This paper presents the obtained optimal sizing curves for the hybrid system (Ppv [kWp], QH2maxQH2max [kg]) by taking into account the predefined constant load (6.5 kW) functioning 24/24 hours and the system energy balance for a loss-of-load probability LLP = 0. These results give the sizes of each subsystem and will make possible to build the best energy flows control mode.