Annual simulation results of PV system with redox flow battery

Abstract This paper describes the simulation results of the PV system with redox flow battery and with lead acid battery. Tap changing of the redox flow battery improves the chargeable energy on one day simulation. Annual simulation results show that the overflow energy of the redox flow battery system arises because the charging efficiency of the redox flow battery is higher than the lead acid battery. It suggests that the capacity of the PV array is reduced as the redox flow battery capacity increases.