Dear Daisy,
Thank you for the files.
You have entered everything correctly in PV*SOL. We are not very familiar with PVsyst, but we have noticed a few differences:
The climate data set is different. PVsyst uses a more up-to-date Meteonorm data set. We have created a new Meteonorm data set for the location. This increases the specific yield to 2002 kWh/kWp.
The irradiation on the back of the module is only 114 kWh/m² in PV*SOL, but 214 kWh/m² in PVsyst. We do not know how PVsyst calculates this. We suspect that the different module arrangement has something to do with it. Unfortunately, we cannot map the rack system correctly. In PV*SOL, the modules are not arranged next to each other but on top of each other.
In PVsyst, the PV module was selected from the database, but in PV*SOL, it was newly created. The standard low-light behaviour was selected. The software then calculates the low light behaviour using a model. These values are generally worse than if measured values from the manufacturer are used.
If you have any further questions, please do not hesitate to contact us.