Thermoelectric and solar-energy technologies are the focus of significant research, and can make a major contribution to the need to find alternative methods of power generation, heating and cooling. Solar-energy, or photovoltaic technology, is established as an alternative energy source, and in common with wind, biomass, wave and geothermal, is considered a renewable energy source. Thermoelectric technology is often overlooked, but can be used in applications where other technologies could not be used, or in combination with other renewable technologies. Contemporary problems surrounding climate change will act as a stimulus for the development of thermoelectrics, and the technology is successful in cooling, refrigeration and space-craft power, with potential for growth in power generation applications [1].Thermoelectric technology can be used in power generation, heating and cooling applications, with commercial thermoelectric modules constructed out of P-type and N-type Bismuth Telluride thermoelements, which are connected electrically in series and thermally in parallel between two ceramic plates. The technology utilizes the Seebeck, Peltier and Thomson effects and has undergone stages of significant interest, research and development, along with periods of inactivity and decline. Thermoelectric power generation is primarily dependent on the Seebeck coefficient (α), in contrast to thermoelectric heating and cooling, which is dependant on the Peltier coefficient (π). A small amount of electrical power, typically mW, can be generated by a thermoelectric module if a temperature difference is maintained between two terminals, or can operate as a heat pump, providing heating or cooling of an object connected to one side of the module. The main disadvantage of thermoelectrics is the relatively low conversion efficiency compared with other technologies. For thermoelectric power generation, current thermoelectric efficiencies are between 5% to 10% [1].Thermoelectric phenomena are exhibited in almost all conducting materials, with the exception of superconductors below specific temperatures [2]. A standard way of investigating thermoelectric material properties is to use the thermoelectric figure-of-merit ZT. The efficiency of a thermoelectric material at a particular temperature, T, is determined by the dimensionless parameter ZT, where Z = α 2 σ/λ, and α is the Seebeck coefficient, σ is the electrical conductivity, and λ is the total thermal conductivity [3]. Materials which possess a ZT > 0.5 are usually regarded as thermoelectric materials [2]. The best thermoelectric materials used in commercial modules, Bi 2 Te 3 −Sb 2 Te 3 alloys, operating around room temperature, have typical values of α = 225µV/K, σ = 10 5 /Ωm, and λ = 1.5 W/mK, which results in ZT ≈ 1. It might appear easy to change one of the properties by a factor of 2, such as the electrical conductivity σ, and double ZT. Unfortunately, α, σ and λ e are interrelated and increasing σ usually decreases α and increases λ e , resulting in no improvement in Z...