r.k

What database does the "Sun Paths" horizon data use by default? (Meteonorm ?, PVGIS?) Does the horizon database change depending on the coordinates and the version of PVsyst?

When I entered the coordinates and imported Meteonorm 8.0, "Meteonorm 8.0 (1981-2009), Sat = 23%" was obtained. What kind of calculation is the Monthly meteo (Global irradiance, Global diffuse, Temperature, etc.) of this "Meteonorm 8.0 (1981-2009), Sat = 23%" calculated? Is it the average value of station data in several nearby locations? Or is it the value calculated by the mathematical model? Thanks,