There is a clear challenge to provide reliable cellular mobile service at remote locations where arnreliable power supply is not available. So, the existing mobile towers or base transceiver stationrn(BTSs) use a conventional diesel generator with backup battery banks. However, the currentrnincrease in diesel price and the negative effects of fossil fuels on the environment motivates tornsearch for other alternative (preferably renewable) sources of energy. In this work, feasibility ofrnPV/Wind/Generator hybrid system with battery storage as a backup is studied to provide arnreliable electric power for a specific remote mobile base station located at Hadnet, Wukro,rnTigray. The feasibility of this study is analyzed using HOMER (Hybrid Optimization Model forrnElectrical Renewable) software. The study utilized meteorological data obtained from NationalrnMeteorological Service Agency of Ethiopia and NASA to estimate the solar and wind energyrnpotentials. The load consumption data for the base station is collected from network andrnoperation center section of Ethio-telecom organization.rnrnThe best optimal system configurations namely PV/Wind/Generator/Battery and PV/Windrn/Battery hybrid systems are compared with the conventional stand-alone diesel generator (DG)rnsystem. Findings indicated that PV/Wind/Generator/Battery hybrid system is the mostrneconomically viable option with a total cost of $168,137 for the whole system project life time,rni.e. 20 years and for the diesel generator system the total cost is $653,602 for the whole systemrnproject life time. And the levelized cost of energy (COE) for both systems is $0.282/kWh andrn$0.729/kWh respectively. This implies the hybrid system saves $485,465 in terms of NPC andrn$0.447/kWh in terms of COE to the network operator. Also, simulation results show that thernrenewable energy source based hybrid energy system can decrease amount of air pollutants asrncompared to the conventional diesel generator only and so a reduction of 38,657kg/yr of CO2,rn95.38 kg/yr of CO, 10.532 kg/yr of UHC, 7.192 kg/yr of PM, 77.66 kg/yr of SO2, and 851.3rnkg/yr of NOx is observed and saves about 14,680 liters of fuel per annum to the networkrnoperator. The sensitivity analysis is also carried out to analyze the effects of probable variation inrnsolar radiation, wind speed, diesel price and average annual energy usage of the system load inrnthe optimal system configurations. As a result, this study has verified that the hybrid system is superior to the diesel-only system forrnpower generation at the BTS site from the perspective of economic, reliability and environmentalrnanalysis.