*5.2. FPV with Single Axis Tracking System*

Single- and dual-axis tracking systems are used to maximize the power output by focusing the PV panel normally to the direction of the irradiation in its availability. The dual-axis type of tracking system is slightly difficult to implement in FPV systems, which is still under analysis. In this study, single-axis tracking or east–west tracking of the FPV system is analyzed for crystalline and thin film type of PV panels placed horizontally and vertically. In the fixed tracking system, the modules are south-oriented, while in single axis tracking system the azimuth angle of the modules is changed to feasibly rotate the panels east to west. This change in the position of the PV panels decreases the number of panels occupied in the area and eventually, the installed capacity of the system. However, with the decreased installed capacity, it is observed that the output of the system in all six cases is considerably increased while implementing the tracking mechanism. Figure 6 shows the comparison POA irradiance level on the system with and without the tracking mechanism with reference to the global horizontal irradiation (GHI) levels in the reservoir. The irradiance levels are the data obtained from the polycrystalline module placed in portrait orientation.

**Figure 6.** Plane of array (POA) irradiance variation with and without tracking system.
