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PostPosted: Sat Mar 10, 2018 9:30 am 

Joined: Sat Mar 10, 2018 9:27 am
Posts: 1
Hi we are diagnosing issues on a site.

When comparing measured irradiance from an in plane pyranometer which the predicted values from PVSYST, which of the PVSYST predicted values should we use for comparison?

GlobInc or GlobEff?.

Thank you


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PostPosted: Tue Apr 17, 2018 9:25 pm 
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Joined: Mon Apr 16, 2012 7:29 pm
Posts: 1463
GlobInc is the irradiance on the plane, calculated by the transposition model.
GlobEff is the irradiance effectively falling on the PV modules, after optical losses like shadings, IAM or Soiling.

You should compare with GlobInc of course.


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