A PV system is to be installed on a flat roof in Naples (Italy). The area of the roof that can be utilized for installing the PV system is 12x13 [m2] . The roof is oriented such that the sides are parallel to the East-West and North-South directions, respectively.
The owner of the roof decides to use PV modules with dimensions of 1.65 [m] × 0.99 [m] × 0.040 [m] . He is interested in the following configuration:
The modules are mounted under a tilt of 30° facing south. The short side of the modules is touching the ground. Shading calculations showed that the distance between the short edges of each row of modules has to be 4.05 [m]
How many modules can be mounted on the roof in this configuration? Assume for this calculation that the thickness of the modules is 0 [mm] instead of 40 [mm] .
A)14
B)21
C)24
D)36