Since economic viability is among the main criteria for deciding whether to launch a project, therefore the aim of this study is to scrutinize economic aspects of harnessing wind energy in Afghanistan for producing hydrogen. In this regard, levelized cost of wind-generated electricity was first projected for all 34 capital cities. Then, energy efficiency of the hydrogen production system, Levelized Cost of Hydrogen (LCOH) and payback period of establishing wind farm were investigated for the city with the least Levelized Cost of Electricity (LCOE). As some unpredictable conditions may occur during lifetime of a wind power plant, causing decline in output energy of the turbines, thus 5 degradation rates were deemed to compute LCOE, LCOH, energy efficiency and payback period under 3 scenarios, which leaded to 15 different cases. The results showed that utilizing one set of "WES 100 GENERAL" wind turbine with rated power of 100 kW in Fayzabad could produce 260,610 kWh/yr of electricity when degradation rate constituted zero. Moreover, Fayzabad had LCOE of 0.063, 0.068 and 0.079 $/kWh and LCOH of 2.118, 2.158 and 2.261 $/kg for the scenarios 1, 2 and 3, respectively, when degradation rate was zero. (C) 2019 Elsevier Ltd. All rights reserved.