Design of a GPS-based solar tracker system for a vertical solar still

Compared with horizontal solar still, vertical solar still has better condensation but lower evaporation. To increase the evaporation, it needs a control system that moves a vertical solar still to follow the azimuth angle of the sun. This paper presents a design of a GPS-based solar tracker system, that can moves the vertical solar still follow the azimuth angle of the sun. Furthermore, to determine the effect of this solar tracker system, research was done by comparing the power of 2 solar cells placed in different positions. The first solar cell was placed upright and rotated with the solar tracker system. The second solar cell was placed horizontally. The result showed that the power generated by the first solar cell is greater than the second solar cell.