When the knowledge about the work of solar panels. And comparing the flow rate, and, 0.25 0.15 0.01 0.05 kg / s respectively, found that the flow rate 0.25 kg / s can be cooled from the solar panels. Lower the temperature of the solar panels is about 13 - 15˚C, the rate of air flow 0.25 kg / s will M120W best performance at 16.3%, P120W best performance at 11.7% and 6.2% T50W most effective.