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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.
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.
16
Section 2 - MLBase Installation
(Insolation throughout the year at differing latitudes)
Northern
December
Hemisphere
70
0
60
10
50
20
40
30
30
40
20
50
10
60
0
70
(Northern solar energy versus southern solar energy)
Southern
June
Hemisphere
0
70
10
60
20
50
30
40
40
30
50
20
60
10
70
0
MLBase User's Guide
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