Solar panel mounting are basically two types - Fixed panel and moving panel type which is known as the solar tracker system.
In the fixed type, the solar panels are fixed at an optimal angle with respect to the Sun to ensure maximum conversion of solar energy to electrical energy.
In Solar tracking systems, the solar panels are rotated along an axis to face the Sun at an optimal angle to ensure maximum power conversion. Solar tracking system helps to achieve an energy conversion rate of 35-40% as compared to 20-30 % from fixed panels. Solar tracking systems again classified as single axis and dual axis systems depending on the level of energy conversion efficiency which is planned to be achieved. Dew to rapid technological development it is predicted that Solar tracking systems will cover nearly 50% of the solar PV installations by the year 2021.