Economic and backlash tolerable solar tracking system

This paper deals with the development of automatic solar tracking system to maximize solar energy harvesting. The system tracks by comparing intensity of light falling on two sensors. When the intensity of light falling is decreasing in one of the sensor comparing to another, system is aligned such that both sensors receive same intensity of light. The hardware implementation aims to develop economical maximum friction free system. The system is designed to any environmental forces including wind or any backlash forces, using worm gear mechanism. It can be utilized for applications such as house hold, PV pumping or industrial applications of solar power.