For comparison purpose, energy yield calculations have been
done for two tilt angles, i.e. 5 and 19 with a fixed area of
1000 m2. Available land fixes the solar energy availability for any
solar PV power plant. For the cases of roof-top or land-mounted
system, the available land decides the installation capacity and
corresponding energy generation. In order to calculate land
requirement, the pitch calculation is done for a solar panel width
of 1 m. The pitch is calculated with respect to various tilt angle
susing Eq. (14) for various Sun elevation angles in the range of
10–70 as shown in Fig. 5. It is observed that the pitch increases
with respect to tilt angle, which indicates that the spacing between
solar panel string increases with tilt angle. This further points out
that the installation capacity decreases with respect to increase in
the tilt angle for a fixed land area, which ultimately results in lower
energy generation. It can be concluded that the land requirement
increases with increasing tilt angles for installing equal capacity
solar PV power plant.