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Mismatch Loss

Shashank Sharma

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We name "Module Mismatch" the mismatch between modules in a PV array.

However this is highly dominated by the mismatch due to current differences (i.e. within a string).  Because the current of the string is driven by the current of the weakest module in the string.

The mismatch in voltage between 2 strings with "reasonable" voltage differences (some few percents) is very low.

You have a tool for analyzing this in PVsyst, button "Detailed losses" => "Module quality - LID  -Mismatch",  page, button "Detailed study".



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