A Problem happened when I do the simulation located in 29.06N,92.2E. Before simulation, I chose 33 degrees as the fixed angle of PV modules, while the loss by respect to optimum is 0%. However, after clicking on the simulation button, I came back to see the orientaion part, and found that the loss by respect to optimum and the global on collector plane changed. Please find the attachement of the sceenshot. This problem may affect the result, especially "the global incident in collector plane" and the result is ~5% larger than the one my colleague got. We used the same virsion and simulated the same location. This problem had never found before. PS, we used the metenorm 7 as the data source. Have you ever met this problem and do you know how to fix that? Look forward to your reply and Thanks! Wendy After simulation Before simulation
