what are those factors which cn affect actual transposition compare to PV Ssyt

[erashutosh77]

what are those factors which cn affect actual transposition compare to PV Syst.

our actual site transposition in Dec month is 2% lower than PV Syst simulated transposition.

is there any specific reason due to which actual transposition is lower.

in other months actual transposition is same with PV Syst calculated PV Syst.

[André Mermoud]

Please explain what you mean by "those factors which cn affect actual transposition compare to PV Syst".

What is the "actual transposition" ?

There are no hidden factors in the transposition model: only the possibility of using the Hay or the Perez model (defined in the project's settings, or the Hidden parameters if you are not within a project).