In this work we propose a new approach to recovering thermoelectricity to improving the efficiency of a photovoltaic (PV) generator under the high temperature as the desert weather. The proposed system composed on two parts, the first is the thermo generator, when is used for a thermo energy harvesting from the PV temperature, the second is to use the energy recovered by the thermo generator to power a fan to cool a photovoltaic panel PV cells. Tests based on such low power fan cooling system show a 3% increase on the voltage generated by a PV panel.