Hi André Mermoud, I also see this " Loss due to voltage threshold" factor very significantly from PVsyst 6.4.3 Update. Correct me if am wrong, this value is highly dependent on temperature. Apart from analysis done by kamomeno68 . I also have done small exercise on this factor with respect to temperature which is as follows. While defining thermal loss factors in detail system losses, when I select "Free mounted modules with air circulation", the loss factor due to voltage threshold is around 1.6%. But when i select "Semi integrated with air duct behind" the loss value is surging to 7.4%. All other parameters are kept identical in both simulations. To give a detail, I used Fronius Eco series inverter with narrow Mppt Voltage (580 - 800V). Also string voltage exceeds inverter mppt limits at 60degs in either case. In earlier versions of PVsyst this loss was almost zero with same conditions I stated above. I just want to understand this loss factor more clearly and factors that will effect this factor. Can you help me with that? Just out of curiosity, can we consider not to include this factor in reports or show it as zero percent just like in previous versions 8-) Thank You
