In this research, the feasibility of a wind-diesel generator-battery hybrid system has been studied. The wind energy resource data are collected from the weather station at the Renewable Energy Development Center of Manjil in Iran. Manjil is located between N36º45´18˝-N36º41´42˝ and E49º23´6˝ and E49º31´ 48˝. Its known as the windy city of Iran; a reputation it owes to its geographical position in the Alborz mountains at a small cleft in Alborz that funnels the wind through Manjil to the Qazvin plateau. The biggest wind farm of Iran is located near Manjil. Throughout the history Manjil has been a gate to the southern Caspian region. The recorded values vary from 5.5 m/s to 7 m/s at 25 m. The hybrid system analysis has shown that for a household consuming 1,270 kWh/yr, the cost of energy is 1.205 USD/kWh and produces 2,493 kWh/yr in which 93% of electricity comes from wind energy. From this study, it’s clear that the optimized hybrid system is more cost effective compared to the diesel generator system alone where the NPC and COE are equal, respectively, to 19,561 USD and 1.205 USD/kWh and 47,932 USD and 2.952 USD/kWh. The sensitivity analysis predicts that the grid extension distance varies from 1.25 to 1.85 km depending upon wind speed and fuel price which indicate a positive result to implement a stand-alone hybrid power system as an alternative to grid extension. In addition to the feasibility of this system, it can reduce the emission of the CO2 , SO2 , and NO2 , respectively, from 4758 to 147, from 9.45 to 0.294, and from 105 to 3.23 kg/yr. Investments in autonomous renewable energy systems should be considered especially in remote areas. They can be financed in the framework of the National Energy Action Plan of Iran.