This paper presents an experimental investigation of hybrid photovoltaic-thermoelectric generator (PV-TEG) systems designed to enhance overall energy conversion efficiency by utilising both solar radiation and waste heat. The research addresses efficiency losses in traditional PV systems due to temperature effects through the integration of thermoelectric generators that convert waste heat into additional electrical energy via the Seebeck effect. The experimental setup consists of monocrystalline PV panels integrated with bismuth telluride (Bi2Te3) based TEG modules arranged in a series configuration. A comprehensive four-day experimental study was conducted, measuring temperature differentials and TEG voltage outputs under varying environmental conditions. Results demonstrate TEG voltage outputs ranging from 28−112 mV with temperature differences between 2−4∘C across the hot and cold sides. Comparative analysis between PV-integrated and standalone TEG configurations shows enhanced performance in the hybrid system, with peak TEG output of 112 mV achieved when coupled with PV panels compared to 107 mV in standalone operation. MATLAB/Simulink simulations validate the experimental findings and demonstrate the feasibility of seriesparallel TEG configurations for optimised electrical output.