Power generation thermo-electric modules can directly convert heat into electricity with no moving parts as long as there is a temperature difference between both ends of the module. They utilize waste heat and can be used for a wide range of applications including small power generators and power generators used in remote areas where high reliability is required. Power generation thermo-electric modules of NORD are bismuth telluride modules proven in cooling applications. They can be used at a normal temperature of 180℃ or less continuously, or at a transient temperature of 210℃. (Refer to the table below for main properties. The properties are taken at 175℃ on the high temperature side and 50℃ on the low temperature side.) The conversion efficiency of the power generation thermo-electric modules is about 3% under the conditions. Efficiency is expressed as Wload (output) (W)/Qhot (heat flow) (W).