Photovoltaic (PV) systems are among the most important renewable energy sources that can satisfy the world’s energy requirements. Performance of PV solar module is affected by its orientation and its tilt angles with horizontal plane. These two parameters change the amount of solar energy received by the surface of the PV module. In this study, we show the optimum tilt angle and orientation of a solar photovoltaic panel that generates the greatest registered value for electrical energy. Experiments are evaluated during the winter period (from January till April) in the location of measurements (Shoubra, Cairo, Egypt, Latitude 30° 5' 6N and longitude 31° 14' 19E). The first experimental work when solar modules oriented towards South-East, South, South-West, the module oriented towards the South 45° gives the greatest values of electrical energy for all the chosen angles. The second experimental work when solar modules oriented towards south, south+15°, south-5°, south-10° and south-15°, the module oriented towards the South-10° for the angle of 45° gives the greatest values of electrical energy for all the chosen angles. From the observation data we obtained in our research we recommend that, the best orientation for solar modules in Shoubra, Cairo, during the winter period, is toward the South-10° installed at an angle of 45° that is latitude + 15°. |
