Thank you for your interest and answer. Currently, the module parameters are as follows: http://pliki.domrel.pl/PVSF/p1.png http://pliki.domrel.pl/PVSF/p2.png http://pliki.domrel.pl/PVSF/p3.png http://pliki.domrel.pl/PVSF/p4.png http://pliki.domrel.pl/PVSF/p5.png PAN file:  
PVObject_=pvModule
 Version=6.81
 Flags=$0743
 PVObject_Commercial=pvCommercial
   Flags=$0041
   Manufacturer=Hanwha Q Cells
   Model=Q.PEAK DUO L-G5.2 400
   DataSource=Manufacturer 2019
   YearBeg=2019
   Width=1.000
   Height=2.015
   Depth=0.035
   Weight=23.500
   NPieces=100
   PriceDate=27/06/19 11:19
 End of PVObject pvCommercial
 Technol=mtSiMono
 NCelS=72
 NCelP=2
 NDiode=3
 GRef=1000
 TRef=25.0
 PNom=400.0
 PNomTolLow=0.00
 PNomTolUp=1.40
 Isc=10.240
 Voc=49.00
 Imp=9.750
 Vmp=41.04
 muISC=4.00
 muVocSpec=-140.0
 muPmpReq=-0.360
 RShunt=400
 Rp_0=1600
 Rp_Exp=5.50
 RSerie=0.212
 Gamma=0.977
 muGamma=-0.0005
 VMaxIEC=1500
 VMaxUL=1500
 Absorb=0.90
 ARev=3.200
 BRev=12.288
 RDiode=0.010
 VRevDiode=-0.70
 AirMassRef=1.500
 CellArea=122.2
 SandiaAMCorr=50.000
End of PVObject pvModule
   Is it OK now? Production has improved :)