Estimation of optimum tilt angle for PV cell: A study in perspective of Bangladesh

Bangladesh, a subtropical country located not very far from the equator, has certain geographical advantages in solar energy generation. But, as the solar energy generation is not as robust as other forms of energy, the solar systems must be optimally installed to reap every physical benefits possible. One very important factor in this matter is the tilt angle of the solar panel. This paper focuses on finding the optimum tilt angle for a solar panel in a particular region. The paper finds the optimum tilt angles for various divisions of Bangladesh using two methods: one optimum tilt angle for a whole year, and two tilt angles for two halves of a year. The paper demonstrates the benefit of using two seasonal tilt angles instead of using just one tilt angle throughout the year. The paper additionally checks the extent of benefit that might occur from using more complex systems involving more tilt angles.