Section 2 - MLBase Installation
16
MLBase User's Guide
The other key criteria for solar panel installation is the tilt angle. The following chart illustrates the variability between
summer and winter and latitude.
Insolation
is a measure of solar radiation energy received on a given surface and
recorded during a given time.
(Insolation throughout the year at differing latitudes)
The chart depicts northern hemisphere solar energy, reverse the months for the southern hemisphere. As can be
seen, solar energy varies considerably over the course of the year so the tilt angle should be adjusted to capture the
maximum radiation during the worst month of the year. In the Northern Hemisphere this is December. In the
Southern Hemisphere this is June.
Northern
Hemisphere
December
Southern
Hemisphere
June
70
0
0
70
60
10
10
60
50
20
20
50
40
30
30
40
30
40
40
30
20
50
50
20
10
60
60
10
0
70
70
0
(Northern solar energy versus southern solar energy)