Electricity can be produced in vehicles fr gases. In a gasoline powered engine about 70 pe fuel's energy is dissipated as waste heat through Thermoelectric generators (TEGs) can directly co energy to electrical energy and can be employed in industry to recover this waste heat energy. We ar efficiency HZ-20 module. This TEG has 71 thermoco electrically in series and thermally in parallel. The are made by using Bismuth Telluride based semicon gives high efficiency at most heat temperatures a strength in tough applications.