Quantum dot (QD) solar cells have the potential to utilize the high energy photon to multiple electron-hole pairs in order to increase the maximum attainable thermodynamic conversion efficiency. It has a tunable band edge, which offers the possibility to harvest light energy over the appropriate range of light to harness the maximum efficiency of solar cell. In addition to that, integration of efficient tracking of sun using Double Sun technology results in considerable increase of power output; in effect, making better utilization of solar energy. In the present work, we demonstrated the structure and operation of double sun solar system and proposed a way of improving device performance using Q-dot nanocrystals.