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ktmrfs's avatar
ktmrfs
Explorer II
Oct 17, 2013

Answering some solar panel with MPPT controller ?

Here is some real world data on solar panels when used with a MPPT controller to answer some question I, BFL and others have. This report is focused on the questions we had regarding solar panel use...
CA_Traveler's avatar
CA_Traveler
Explorer III
Oct 18, 2013
In Post #3 and Post #9 ktmrfs observed that serial panels produce the current set by the highest output current while the second shaded panel has reduced voltage.

I expected the current to limited by the shaded panel. Ie At 1000W a 8A panel would produce 4A at 500W based on the typical IV curves.

So how did ktmrfs see 4.1A in direct sun and 4.1A with one panel in the shade and reduced voltage for the shaded panel?

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