Abstract: Currently, there is a lack of fossil fuels, oil, and natural gas to generate electricity. Burning these fuels can cause environmental problems, such as radioactive pollution, global warming, etc. Therefore, new technologies that use thermoelectric generators to generate electricity are needed. A more promising technology is available that will bring many environmental benefits. Thermoelectric generators can directly convert thermal energy (heat) into electrical energy. TEG has no moving parts and no movement waste from power generation. Therefore, it is considered as an environmentally friendly technology. If people don't have to believe in the cost of heat input, then thermoelectric potential has the potential to generate electricity. The remaining thermal energy is directly exchanged for electrical energy. This method obtains the best results. The protection technology can directly convert the remaining heat energy. Electricity can also improve the overall efficiency of the energy conversion system. Compared with traditional processes, this conversion requires fewer heat sources. This means that the energy can be used to charge mobile electronic devices, home appliances, and DC lighting.Keywords: Thermoelectric Generator, Seebeck Effect, Waste Heat Utilization, Alternative Environmental Protection Technology, Direct Energy Conversion, Thermocouple, Thermoelectric Material, Thermoelectric Module.