Bifacial system - Module temperature

[lonav]

Dear PVsyst team,

When running bifacial simulations I have noticed that module temperature remains the same as in the equivalent monofacial system, thus not taking into account extra heat from the rear side. Since Array thermal losses seem to be calculated with both front and rear incident irradiance effect, I was assuming so should module temperature.

Could you please explain the reason for this?

Thank you in advance.

[André Mermoud]

The eventual irradiance falling on the back side in indeed present whatever the system is bifacial or not.

The U-values evaluated (measured) for usual installation already takes this into account.

Therefore there is no difference between mono and bifacial systems.