(1) When PV electrical power is equal to the load demand, PLoad, route A will be employed to transfer electricity from the PV system to the load demand.
(2) When PV electrical power exceeds the load demand, PLoad, route B will be employed to transfer electricity from the PV system to the load demand and the excess electricity would be inputted into the electrolyzer to produce H2. If the H2 storage tanks become full, the excess power will be diverted to another dump load.
(3) When PV electrical power less than the load demand, PLoad, route C will be employed to transfer electricity from both the PV system and the fuel cell.
(4) When there is no solar radiation, route D will be employed to transfer electricity from the fuel cell only to the load demand. Summary of the operational control strategies is shown in Table 1