User Manual

PowerOptimal Elon® 100 User Manual
Version date: 2022/06/28
Page 13 of 24
Version number: 2.15
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4.2 Impact of location and seasons
The amount of energy from the sun depends on your location, the time of year as well as the
orientation of your solar panels. The best direction for panels in South Africa is to face north, at an
angle of about 25 to 35° from horizontal.
Although Gauteng (Johannesburg / Pretoria) & Cape Town may seem quite similar in terms of total
solar energy per year, Cape Town has winter rainfall and Gauteng has summer rainfall. This leads to
Cape Town having much lower solar electricity production than Gauteng in winter (see the below
graph).