The required area depends on following factors:

  1. The wattage & size of the Solar Panel being installed
  2. Number of rows facing the sun
  3. Tilt angle at which Solar Panels are installed

We do a quick guess usually as below:

  1. For a single row installation, the approximate area we assume is between 78-90 Square Feet per kWp.
  2. For multi row installation, approximation is around 100-150 Square Feet per kWp depending upon the Tilt angle – more the tilt angle, more the area.