Theoretically, the solar tracking system describe as the device to get the optimize amount of sunlight according to sun movement. So, the shading effect issues can be minimized. This paper is presents the finding of photovoltaic (PV) harvesting energy via dual axis tracking system. The operation of two direct current (DC) motors motion was programme using PIC kit SK40C by using the Lab View Programming software. The first motor system delay timer is set at 15° rotation per hour and second motor system delay timers is set to rotate 180° after 12 pm. The field testing was initially set up at Perlis, Malaysia climate. An actual testing was used to collect the daily data. The result shows that, the output voltage with solar tracking system is 12.93% higher than without tracking system in the sunny day condition.

Photovoltaic (PV) module temperatures are a crucial factor to assess the PV module efficiency. This paper was focused on the natural cooling PV module. Two different height of the air gap be used to evaluate the power loss. PV modules were installed with 0.07 m and 0.13 m of the air gap. The wind speed, wind direction, ambience temperature (T amb ), irradiance, PV module temperature(T module ) were recorded with 5 minute intervals. The data collected is analyzed to report the estimated of power loss(P loss ). Experiment results show that, even though the PV module mounted on the same categories of mount configuration, which is an open rack mount. It was found that, the power losses improve with the height of the air gap. In addition, the convection heat transfer also influenced by the wind flow. The result strongly evidences that wind and air gap have a relationship to reducing the overheating of a BIPV.