English: On the right, there is the predicted solar generation (PV) which injects energy into the electric bus. On the left, the predicted consumption extracts energy. Below, the short-term battery storage is assimilated to a load l when it is charging and a generator G when it is discharging. Long-term hydrogen storage is equivalent to a load when the surplus electrical energy is transformed into hydrogen via the electrolyzer (EL). The mass M_H2 enters the hydrogen tank (HT). The hydrogen is then consumed by the fuel cell (FC) to inject energy into the electric bus.