If you want to track the solar light in the vertical plane you need to build a separate sun tracker circuit.
Sun tracking solar panel circuit.
The solar tracker comprises comparator ic lm339 h bridge motor driver ic l293d ic2 and a few discrete components.
The movement of the sun is detected using two ldrs which are arranged on the solar panel in such a way that the intensity of light falling on it varies as the direction of sun changes.
Here is a simple low cost solar tracker circuit which automatically moves the solar panel in the direction of sun.
Circuit of solar tracking system.
Solar tracking system circuit fig.
For solar panels control is best to use small motors with a suitable voltage and a maximum working current of 300 ma.
The sun tracking solar panel consists of two ldrs solar panel and a servo motor and atmega328 micro controller.
This solar tracker system is used for tracking the sun only in one plane the horizontal one.
Two light dependent resistors are arranged on the edges of the solar panel.