Power Output Experimental Evaluation of Fixed Photovoltaic Systems when using Adjustable Tilt Angles

Abstract

Traditionally, the fixed photovoltaic (PV) systems are using a yearly optimum tilt angle. However, such an angle would provide best performance in terms of energy output only in some of the months of the year. Adjusting the PV panels’ tilt angle on a regular base, such as twice per year, seasonally or even monthly will definitely ensure higher values of the incident solar radiation and thus a certain growth in terms energy output. In this paper specific optimum tilt angles are used on a PV panel laboratory model in order to evaluate the gains in terms of PV panel’s current intensity and power output.