**6. Conclusion(s)**

Summarizing the analysis of the ATEG development field and its current state, as well as the prospects for the commercial implementation of this technology, the significant progress in this direction, which occurred over the past 20 years, is noted. Many ATEG prototypes have been created. Tests of different vehicle classes with these prototypes in various driving cycles are carried out. That shows the possibility of achieving the specified requirements for reducing fuel consumption and *CO*<sup>2</sup> emissions, especially for trucks [40]. Developers are increasingly focusing to achieve the possibility of commercializing ATEG, to reduce the cost of electricity watt and to solve reliability issues. This makes them, along with the classic industrially produced TEM materials, consider new promising thermoelectric materials, sacrificing sometimes the efficiency of energy conversion. At the same time, optimization of the ATEG design and technological solutions can significantly reduce the requirements for these materials, and improve the weight and size of the ATEG.

The rapid progress in the development of new thermoelectric materials and the research advancement in this area let us hope that the technology for utilizing the heat of exhaust gases of internal combustion engines in ATEG is capable of reaching a broad practical implementation.
