Estimation of the photovoltaic modules energy production in respect of the PV inclination angle

The energy produced by the PV panels depends generally on several parameters - local weather data (solar intensity, amount of impurities in the air (Linke Turbidity Factor), temperature, wind speed and etc.), type and orientation of the PV panel. The impact of local data and type of the PV panels on the production of electricity was discussed and presented in the previous works. The aim of the current study is to show the impact of the inclination angle of the PV panels on the electricity production. Generally, depending on the type of mounting, the PV systems are divided into free-standing and building integrated. Concerning the tracking options the systems are classified into: fixed, tracking in vertical and inclined axes and 2 axis tracking. Here is presented a study on the electricity production for different systems and angle orientations. Mainly focuses on the fixed systems, fixed systems with a single change of the angle during different seasons, and 2 axis tracking systems. Simplified financial analysis based on the energy generated by the PV modules, investments for the implementation of the reviewed systems in respect with the angle change is presented.