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The performance of PV panels is affected by the shading effect due to trees, passing of clouds, neighboring buildings and any other means. A direct correlation was found between short circuit current and solar irradiation under uniform shading conditions. On the other hand, non uniform shading conditions yielded a variety of performance behavior. Such shading conditions should be avoided for better performance of solar panels.

R Ballal, G Kumar, PS Lakshmi Sagar, and P Sathyanarayana

Sathyanarayana, P., Ballal, R., Lakshmi Sagar, P.S, and Kumar, G. (2015). Effect of shading on the performance of solar PV panel. Energy and Power, 5(1A), p.1-4.

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