PV Modules: Bifacial technology

go PV Bifacial PV production Model approaches . Objective: calculate the radiation received at the module backside (i.e. Bifacial Ratio) Bifacial Ratio State-of-the-Art: View factor models vs Ray tracing models VIEW FACTOR RAY TRACING rtr rtr n- 052 Ost k = Gback Gfront tecnalia Inspiring Business 2D model. Geometrical/analytical description No differences between modules in the middle and on the edge of a row No details can be included like trackers torque-tube or transparency between cells Fast computation 3D model. The reflections of a set of rays are calculated More detailed analysis, with differences between all the modules and cells Slow/ Very slow computation (depending on detail and PV installation size) Not available in most common commercial SWs . Available in commercial software (e.g. PVSyst and SAM) GoPV Project | 1st TRAINING COURSES TECHNICAL FOCUS ON FUTURE SOLAR PV SYSTEMS 32 October 26-29th 2020

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