6.4
Avoiding shade
Shadowing
Optimal solar radiation leads to maximum energy yields. Because of this, install the module in such a
way that it faces the sun. The optimum angle of inclination for the module is dependent on the
respective latitude of the installation location. To determine the optimum orientation of your model,
we recommend using a photovoltaic simulation tool. For angles of inclination less than 3°
(longitudinal side of the module from the eave), it needs to be ensured that adherent contamination is
removed by sufficient precipitation or through regular manual cleaning (also see the section ‘Cleaning
and maintenance’).
TYPICAL SHADE SCENARIOS
1)
Reduction in performance proportional to the shaded surface
2)
Shade parallel to the cells can reduce the performance of the module/string by up to 100 per
cent.
3)
Combination of 1 and 2 leads to reduced performance
4)
Reduction in performance proportional to the shaded cell length. Local heating is possible.
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