raul.martin Posted February 11, 2022 Share Posted February 11, 2022 Hi, I’m working in a project with vertical panels (tilt = 90º) and an orientation E-W (-90º). I realized some problems when working with that configuration in PVsyst:- The performance ratio is over 100 % : I find performance ratios around 120-145 % which should be impossible as the theorical maximum performance ratio of a panel is 100 %.- I run a test with a near shading scene where I have only one tree and only one table of panels. If I put my table at the west of the tree, I have near shading losses of around 30 %, but if I put it at the same distance but at the east I have only 2 % of irradiance losses, which doesn’t make any sense. I think that the losses should be quite similar in both cases. My system is a bifacial one, so the panel is supposed to produce electricity from both sides, and I think that PVsyst is only considering the irradiance arriving on one side. Thank you for your answer. Raúl. Link to comment Share on other sites More sharing options...
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