Potency of Thermoelectric Generator for Hybrid Vehicle. Thermoelectric Generator (TEG) has been known aselectricity generation for many years. If the temperature difference occurred between two difference semi conductormaterials, the current will flow in the material and produced difference voltage. This principle is known as Seebeckeffect that is the opposite of Peltier effect Thermoelectric Cooling (TEC). This research was conducted to test thepotential of electric source from twelve peltier modules. Then, these thermoelectric generators were applied in hybridcar by using waste heat from the combustion engine. The experiment has been conducted with variations of peltiermodule arrangements (series and parallels) and heater as heat source for the thermoelectric generator, with variations ofheater voltage input (110V and 220V) applied. The experimental result showed that twelve of peltier modules arrangedin series and heater voltage of 220V generated power output of 8.11 Watts with average temperature difference of42.82°C. This result shows that TEG has a bright prospect as alternative electric source.