Abstract­­­- This paper presents an energy management strategy for energy storage battery in a standalone hybrid power system. The hybrid system consists of PV generator, wind turbine, storage battery, and inverter.  The PV and Wind are the primary power sources of the system, and a battery bank and diesel engine are used as a backup system. An overall energy management strategy is designed for the system to manage power flows among the different energy sources and the storage unit in the system. A simulation model for the hybrid energy system has been developed using MATLAB/Simulink. The Wind and solar energy data are based on Sohag city. Simulation studies have been carried out to verify the system performance under different load scenarios using a practical load profile.