A single axis tracking system is a method where the solar panel tracks the sun from east to west using a single pivot point to rotate. Under this system there are three: Horizontal single axis tracking system, Vertical single axis tracking system and Tilted single axis tracking system. In the Horizontal system the axis of rotation is horizontal with respect to the ground, and the face of the module is oriented parallel to the axis of rotation. In the Vertical system the axis of rotation is vertical with respect to the ground and the face of the module is oriented at an angle with respect to the axis of rotation. In the Tilted tracking system the axes of rotation is between horizontal and vertical axes and this also has the face of the module oriented parallel to the axis of rotation, similar to the Horizontal tracking system. The single axis tracking system consist of two LDR's placed on either side of the pane. Depending on the intensity of the sun rays one of the two LDR's will be shadowed and the other will be illuminated. The LDR with maximum intensity of the sun,s radiation sends stronger signal to the controller which inturn sends signal to the motor to rotate the panel in the direction in which the sun's intensity is maximum.