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Freestanding installation — PV modules...
h
α
z
sin (180° – (α + β))
=
h
sinβ
z Clearance between module rows
h Module height
Example:
Würzburg is located at approx. 50° latitude.
1. Determine the angle of the sun β.
In Germany this angle (subject to lat-
itude) lies between 12° (Flensburg)
and 20° (Freiburg).
90°−23.5°−latitude (assume 23.5° as
constant)
90°−23.5°−50°= 16.5°
Installation
The supports can be mounted on a substructure or on collector support slabs.
The diagram shows the installation on a substructure.
!
Please note
Caution: Surface fragile and slippery.
Never step onto PV modules.
h
β
z
α Angle of module inclination
β Angle of the sun
2. Calculating dimension z:
h = 810 mm
α = 35°
β = 16.5°
z =
z =
z = 2232 mm
(cont.)
α
h · sin (180°– (α+β))
sin β
810 mm · sin (180°– 51.5°)
sin 16.5°
37
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