Abstract

Solar energy is a renewable free source of energy that is inexhaustible and sustainable, unlike fossil fuels that are finite. Research is being performed for the development of more efficient systems by absorbing maximum sun light and converting it into electrical power.The purpose of this work is to make more efficient solar panels for photovoltaic perpendicular rays of the sun throughout the year.This includes the design and implementation of research-based Arduino dual axis solar tracking system. The development of experimental setup is comprised of two parts: hardware and software. During hardware development phase, four light dependent resisters have been installed in “+ shaped “mounting on the top of solar panel. Two DC geared motors have been fixed to rotate the solar panel in mutually perpendicular axis to each other so that the plane of each solar panel remains normal to the incident rays of the sun all the time in a day. Firstly, a code in C language is developed and fed to the microcontroller “Arduino UNO”. The graphical user interface (GUI) is developed in “Lab VIEW” and connected with microcontroller to examinethe real time displacement of solar panel in both axes by the feedback information of LDR sensors. This allows two-axis tracking of solar energy and the solar panel is capable of producing electrical energy with sunlight throughout the whole day.Therefore, average power produced by biaxial solar tracker in a day is 20.98% more than that by simple static system.