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Spectral Correction without Precipitable Water Data


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I'm modeling a plant using First Solar modules and hoping to use the built-in spectral correction feature. My weather data provider does not include precipitable water but does include relative humidity.

When uploading weather data in the PVsyst standard format, relative humidity does not appear in the options for parameters to include that would be used by PVsyst.

How can I upload weather data that would be usable for this model?


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  • 1 year later...
When the spectral correction is enabled, the coefficient set corresponding to the PV module technology is used by default in the simulation. It is possible to override this behavior by un-checking the corresponding box and selecting any of the available coefficient sets. In this case, the coefficient set will not follow any more possible changes of the PV module in the system definitions, and it is the responsibility of the user to ensure that a meaningful set is chosen for the simulation. aces etm
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