Automatic Sun-Tracking System

The traditional sources of energy in the world are beginning to fade and the issue of finding alternative sources has become an urgent and fundamental. Hence, alternative sources of energy have become the desired solution for a prosperous future and a clean environment. Thus, solar energy is considered one of the most important renewable sources of energy. This paper describes an automatic sun tracking system, based on two stepper motors, and moving solar panel. To gain more energy from the sun, the active surface of the solar cells should be perpendicular to solar radiation, which means that the panel must follow the path of the sun all the time. The orientation of the solar panel towards the sun is achieved by using a C++ program. An experimental comparison between a fixed panel and a moving one is presented.