Renewable energy systems such as photovoltaic (PV), thermoelectric generators (TEG) have recently become in high demand for cleaner energy production. In this study, a single PV panel is connected in series with a thermoelectric generator (TEG) panel as a hybrid PV-TEG system. A large amount of heat is dissipated in normal operation of PV panel. This heat can be absorbed by a TEG panel that is built from 32 TEG modules attached directly to the PV panel. The TEGs convert heat into useful electricity through the Seebeck effect. Energy output from the hybrid system is sensitive to stochastic operating conditions, leading to further reduction of efficiency. Therefore, to attain maximum available power in a hybrid system, four Maximum Power Point Tracking (MPPT) methods are used, where their output is modulated as pulses to drive a DC/DC boost converter. The study's main findings show the voltage and efficiency of the hybrid system are improved by 9.21 % and 18.16 %, respectively, in comparison to a PV panel alone. With sudden change in solar irradiance after 0.4 seconds of operation, the power of PV-TEG system is 25.4 W. This is still higher than in the case where only a PV panel is used, 20.9 W. While changing in different temperatures, recorded results shows improvement in efficiency of 27 % for the PV-TEG system over a PV panel alone, at ΔT 40°C. MPPT by the IT2FLC method is still superior to other MPPT methods. Furthermore, a study of system expansion up to 20 PV-TEG hybrid panels is done. The results confirm the robustness of the proposed hybrid system over that of a PV panel alone. © 2022, International Journal of Renewable Energy Research. All Rights Reserved.