Ans: The right angle for the installation of the solar panels depends on the latitude of the place where you are planning to install them. Generally, the tilt angle ranges from 9 – 12 degrees in southern India whereas in northern India, the tilt angle needs to be between 25 – 30 degrees. When you have to install the solar panels at a higher altitude, the tilt angle decreases so that the wind speed impact can be nullified.