<p>A recent advancement in wind turbine technology involves the integration of a hybrid wind turbine (HWT), that merges Savonius and Darrieus configurations, intended to boost the efficacy of wind energy extraction. In the current study, hybrid rotor system consists of two semicircular-bladed Savonius rotors with an overlap ratio of 0.2, coupled with a 2-bladed straight NACA0018 aerofoil Darrieus rotor positioned above the Savonius rotor. The hybrid rotor maintains a diameter ratio of 0.2, with an attachment angle of 45° and wind velocity of 10 m/s. 2D unsteady simulations are performed at various tip speed ratios (TSR) for the hybrid rotor via SST k-ω turbulence model with the assistance of the finite volume-based solver ANSYS Fluent. The numerical findings are verified by contrasting them with data from preexisting numerical works. Additionally, double deflectors are integrated to optimize airflow at the inlet and mitigate negative torque produced by the returning blade of the Savonius rotor. The front deflector is positioned at a 30° angle in front of the inlet, while the side deflector is affixed at a 30° angle with the horizontal axis beneath the inlet. There is an enhancement of power coefficient (<i>C</i>_<i>P</i>) by 6.3% and 13.8% at TSR= 2.5 and 3.5, respectively, in the hybrid turbine with deflector plate than the turbine without deflector plate.</p>