Antonio Carotenuto Posted yesterday at 03:09 PM Posted yesterday at 03:09 PM Hello, I am performing a yield simulation in PVSyst for a photovoltaic plant with single-axis trackers, oriented East-West, and bifacial photovoltaic modules. I imported the 3D model of the plant via the .pvc file generated with PVCase. The bifacial section of the modules in the System tab is properly filled out, and before running the simulation, I recalculate the shading table in the Near Shadings section. Why is it that sometimes the Bifacial Performance Ratio does not appear in the simulation report? Sometimes only a PR index appears, and it is also underestimated. Should I check some simulation parameter? Thank you for your help!
Auriane Canesse Posted 1 hour ago Posted 1 hour ago The bifacial performance ratio is only displayed on the report when the bifacial simulation is turned on (in System -> bifacial system -> use unlimited shed or tracker) The standard PR is not valid for bifacial systems because it does not include the incident irradiance on the panel back side. Since the production of the panel is the same in both computations, the PR is always higher than the BPR. https://www.pvsyst.com/help/project-design/results/performance-ratio-pr.html?#bifacial-performance-ratio
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