Abstract: In recent years, an increasing concern of environmental issues of emissions, in particular global warming and the limitations of energy resources has result din extensive research into novel technologies of generating electrical power. Generating electricity in present there is a shortage of fossil fuel, oil, gas, etc. burning of these fuels causes environmental problem like radio activity pollution, global warming etc. So that these (coal, oil, gas) are the limiting resources hence resulting new technology is needed for electricity generation, by using thermoelectric generators to generate power as almost promising technology and environmental free and several advantages in production.