lprosperi

André, Thank you, I did a mistake in my calculations. I was trying to calculate U using measured data. But I tried to do a check using PVsyst output data, and back-calculating the input Uc.

André, Did you implemente the correction in PVsyst already? I am using Version 6.24 (21.05.2014 - pre-fix), and I have set Uc=28.8 I am using the older formula to verify Uc=28.8 Uc = Alpha · GlobInc · (1 - EffArrR)/(TArray-TAmb) But I am not getting 28.8 I used the PV module "internal model result tool" to calculate the efficiency/Module, but I still didn't get 28.8 Is Tcell the same as TArray? I have TArrMes too, what is the right formula to calculate Uc? Thank you.

Hi, I am using version 6.18 I have a project with 20 MW as Grid Power limitation. Actual installed AC Power 22.4 MW Nominal Array PV Power 26.8 MWp In my model I have both AC losses: -AC circuit: inverter to injection point -External transformer When I run the Simulation, PVsyst generates the hourly output. These are the max value for each energy field. EArray: 20451 EOutInv: 20005 E_Grid: 19585 It seems that the 20MW limit is applied to the AC inverter output instead of the grid. I would expect that the grip power limitation applies to the E_grid field. Can you please confirm? Thanks, Leonardo