Rafał Posted May 13 Share Posted May 13 (edited) Hello, I need support in indicating which irradiance value is correct for comparison with the value read by pyranometers. I have doubts between GlobInc, GlobShd and GlobEff. Pyranometers are installed as in the photo. Please suggest and help. Thanks Rafał Edited May 13 by Rafał Link to comment Share on other sites More sharing options...
dtarin Posted May 13 Share Posted May 13 (edited) GlobInc. You might have reflections at low sun angles with that installation. For a fixed tilt system, these can be installed on a weather station free from shading and reflection. Edited May 13 by dtarin Link to comment Share on other sites More sharing options...
Rafał Posted May 14 Author Share Posted May 14 (edited) Hi dtarin, Thanks for your answer. If I assume the GlobInc parameter, will the comparison be underestimated due to the fact that the pyranometers are installed in the central part of the farm? I shouldn't include shading, i.e. GlobShd or GlobEff? Rafał Edited May 14 by Rafał Link to comment Share on other sites More sharing options...
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