In this study, it is aimed to investigate of the hydrogen production potential of the H-Darrieus turbines combined with various wind-lens. In the calculations, various wind-lens H-Darrieus models have been considered as diffuser (M1), nozzle diffuser (M2), diffuser brim (M3), and nozzle diffuser brim (M4). The numerical analyses have been performed with ANSYS-fluent software program. Firstly, the power (CP) and torque (CT) coefficients for M1, M2, M3 and M4 turbine models have been computed and compared with the conventional bare turbine (B1). Secondly, the annual hydrogen production (kg/year) for M1, M2, M3 and M4 turbine models and bare turbine (B1) have been conducted in different tip speed ratio (TSRs). The annual theoretical hydrogen potentials produced by the B1, M1, M2, M3 and M4 models per single turbine have been obtained as 1.74, 1.88, 1.84, 2.82 and 2.5 kg, respectively. As a result, the best hydrogen production (kg/year) potential has been determined for diffuser brim (M3) model according to the other models.