One of the most promising forms of energy production for at least several decades is thermoelectric power energy, which converts heat directly into electricity. In comparison with other methods of extraction of energy, Tthermoelectric power energy has such distinctive features as compactness, low weight, noiselessness in operation, high reliability, does not affect the growth of greenhouse gases and an increase in the radiation background. It can be recognized that low current conversion efficiency and high cost are some of the disadvantages. But there is a huge plus, because TEPG does not contribute to the depletion of natural resources and environmental pollution, such as climate warming, which has caused concern recently. In this paper, we report on some technological features of methods for obtaining semiconductor materials for thermoelectricity and their properties.