THank you for the reply. It was very helpful in evaluating the .csv file. I have evaluated several of the files and discovered that the inverter Pnom or nameplate max AC output is often surpassed on the output file. In this case, it was for 11% of the operating hours, with the total amount of time the inverter was clipping 27% of operating hours. When clipping was not occuring though it was supposed to, the inverter loss due to efficiency was negligible, and the inverter loss due to max power was 0. This made the inverter look very efficient on the output page.
File comment: The file doesn't stop at max power, but efficiency is right
clipping not working but efficiency right.png [ 28.56 KiB | Viewed 17151 times ]
On a different simulation however, the inverter clipped appropriately and the Pmax losses were correct, however now the inverter losses due to efficiency were relatively high vs. the previous simulation, where if the inverter was producing at max nameplate, the efficiency losses were zero, which makes sense. I would argue once the inverter is at nameplate, all the losses should be due to power threshold. Taking it one step past that, I would even argue as is seen in this screen shot below, that if the inverter is producing at 2kW below nameplate (in this case, 18 500kW inverters) or 7998, the max efficiency loss should be 2kW and the rest should go to power threshold.
File comment: clipping modeled correctly, but efficiency confusing
efficiency vs. clipping loss clipping correctly.png [ 17.98 KiB | Viewed 17151 times ]
Can you please explain why the difference and how that happens?
Thanks in advance. I am also Swiss, but from the German part living in the US. I hope to soon make it back for one of your trainings.