EA2EQD Posted February 20 Share Posted February 20 Hi all, SolarGis uses the Perez transposition method to pass the irradiance from GHI to Glob.Inc (POA). Does PVsyst have any advantage in terms of accuracy? I mean: is 'Pérez transposition method' applied first and then the 3D model, shadows and horizon are applied or does the model itself also use the information from the geometry where the plant is located? Glob.Inc. (POA) output of PVsyst is more accurate than GTI (POA) SolarGis? Link to comment Share on other sites More sharing options...
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