Energy emitted in the form of heat from various sources can be recovered and converted into usable electricity using thermoelectric generators (TEGs). In this study, the efficiency of a π-shaped thermoelectric module composed of p-type ZrMnZ (Z = In, Pb, Bi) legs and n-type Bi2Te3/SiGe alloys were investigated using MATLAB simulation software. The module efficiency was analyzed by varying the p-type legs (ZrMnIn, ZrMnPb, and ZrMnBi), n-type legs (Bi2Te3 and SiGe), and electrode materials (Al, Cu