Customize bifacial irradiance data in PVSyst

[tungp104]

I am working on the evaluation of energy yield of bifacial system, using Radiance and PVsyst. I heard in the instruction you mentioned about using customized data input in PVsyst from the result of Radiance with front and back surfaces irradiance. For annual simulation, the synthetic meteo data would be required, while output from Radiance is cumulative irradiance. Would you please elaborate a bit more about this and suggest a suitable combined use of Radiance and PVsyst for accurate annual energy yield? Thank you in advance!