INSTALLATION - PLANNING
25
Use the following diagram, tables and worked example to determine the minimum required roof area for the
array when designing and installing with REC255PE modules.
REC255PE spacing and dimensions
Worked Example:
Number of rows: 2
Number of modules per row: 10
Total number of modules = 20
Calculating
:
=
௪௦
×
1
665 + 20
− 20
= 2 × 1
685 − 20
= 3
350
Calculating
:
=
ௗ௨௦
/
௪
×
991 + 18
+
2 × 25
− 18
= 10 × 1
009 + 50 − 18
= 10
122
Calculating
ோ
in
ଶ
:
ோ
=
×
ோ
= 3
350 × 10
122
ோ
= 33
908
700
ଶ
Converting
ோ
in
ଶ
to
ଶ
:
ோ
=
33
908
700
1
000
000
= 33.91
ଶ
Calculating
ோ
in
ଶ
:
ோ
=
1
000
×
1
000
ோ
=
3
350
1
000
×
10
122
1
000
ோ
= 3.35 × 10.122
ோ
= 33.91
ଶ
Notes:
•
Modules installed in portrait as per diagram
•
For tilt leg systems, row spacing must prevent shading of one row by another and needs to be calculated on an
individual site basis, taking into account orientation, roof pitch and module inclination
•
All dimensions are in mm, unless otherwise stated.
Number of modules per row – REC255PE
1
2
3
4
5
6
7
8
9
10
-
Number
of row
s
H
1665
1665
1665
1665
1665
1665
1665
1665
1665
1665
1
X
X
X
X
X
X
X
X
X
X
X
W
1041
2050
3059
4068
5077
6086
7095
8104
9113
10122
H
3350
3350
3350
3350
3350
3350
3350
3350
3350
3350
2
X
X
X
X
X
X
X
X
X
X
X
W
1041
2050
3059
4068
5077
6086
7095
8104
9113
10122
Number of modules per row – REC255PE
1
2
3
4
5
6
7
8
9
10
-
Number
of row
s
Roof
1
Area
1.73
3.41
5.09
6.77
8.45
10.13
11.81
13.49
15.17
16.85
(m
2
)
Roof
2
Area
3.49
6.87
10.25
13.63
17.01
20.39
23.77
27.15
30.53
33.91
(m
2
)
