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Report shows spectral correction applied even when it isn't


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Posted (edited)

I'm not sure how I never noticed this before, but spectral correction is included in the loss inputs section of a PVsyst report even when the correction wasn't applied due to lack of any water vapor variable in the input met file.  In this case, spectral correction is listed but there is no loss/gain listed in the waterfall diagram.  I think this is VERY misleading and should be changed.  Either take spectral correction out of the input loss list or put an error message where the data source is normally listed.  The inconsistency makes it very difficult to figure out why no spectral gain/loss appears in the waterfall diagram when you know you turned on spectral correction.  The issue is most likely to arise when modifying an existing project because the user may not check all the previous loss settings.  All of the places where the spectral correction could be referenced in a PVsyst run that I can find are shown below for the case when spectral correction couldn't be run along with the input loss pane when RH is included in the met file.

no water vapor info error message_loss window.png

no water vapor info error message_report window.png

report input losses_no water vapor.png

PVsyst report without spectral gain -- waterfall.png

 

report input losses_water vapor included 2.png

Edited by LauraH
Added supporting images

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