Module level mismatch calculation problem

[baohua]

Hi

when I using mismatch tool for module level evaluation, please see the below picture(Pmax loss =-7099.9%), could you help to check if something wrong with the inputs or the model itself? thanks.

Error

[dtarin]

I dont quite understand what the difference is with using cells versus modules in series, but if you use modules (ie 18 modules in series, 10 in parallel), the calculation is much different.

[André Mermoud]

When I developed the Histogram (a long time after the mismatch tool) I probably did not remember this option of cells mismatch, and I have not programmed it.

In this case of cells within a module, the I/V characteristics plot is interesting, but the histogram is not really useful.

By the way, I really didn't aware of the existence of this option of cells mismatch in PVsyst ...