How to select the Optimum Tilt Angle for the Solar PV Rooftop project?

The generation of a solar PV rooftop project highly depends on the correct selection of solar PV module tilt angle.

The thumb rule says that to get the optimum energy output from a solar PV project throughout the year, the solar PV modules should be tilted at an angle equal to the latitude angle of the installation location.

However, there are other factors too that should be considered while selecting the optimum Tilt angle for a solar rooftop site. In this article we will discuss on what all factors should be considered before finalising the optimum tilt angle for the solar PV module.

Thumb Rule – Tilt Angle is equal to the Latitude Angle

Example 1 – Optimum tilt angle for solar PV rooftop project to be installed at Delhi, India.

Latitude angle of Delhi is around 28 Degrees, hence the optimum tilt angle should be around 28 Degrees only.

Example 2 – Optimum tilt angle for solar PV rooftop project to be installed at Chennai, India.

Latitude angle of Chennai is around 13 Degrees, hence the optimum tilt angle should be around 13 Degrees only.

In the below section, we will discuss on what other factors need to be considered while finalising the module Tilt Angle.