This paper presents solar/wind/diesel hybrid energy system with battery storage. More than 70% of rural population in Myanmar still has difficulty been accessing electricity? Therefore, solar and wind potential energy are considered as the main power sources for the system. Solar and wind energies are intermittent and fluctuate resources. To get continuous power supply, diesel generator and battery storage are considered in this study. The study area is situated at latitude 20◦ 53' N, longitude 95◦ 53' E. The HOMER software is used to evaluate the optimum size and cost hybrid system for this study area. The result of this analysis shows that the most feasible system comprises 15kW PV, 10kW one wind turbine, 15kW generator, 16 batteries and 8kW converter with 63% renewable energy fraction. The cost of energy is $0.453/kWh.