THERMOELECTRIC GENERATOR AND THERMOELECTRIC GENERATING SYSTEM

A thermoelectric generator (TEG) including a cooling element, a heat-collection element and at least one thermoelectric generating module is provided. The heat-collection element is disposed at a side of the cooling element, wherein the heat-collection element has a first surface and a second surface opposite to the first surface, and the heat-collection element is suitable for facing a thermal radiation source with the first surface so as to receive thermal energy thereof in a predetermined distance without contacting the thermal radiation source. The thermoelectric generating module is disposed between the second surface of the heat-collection element and the cooling element, wherein the emissivity of the heat-collection element is larger than 0.8. A thermoelectric generating system is also provided.