Test on bifacial cells utilizing various ground surfaces

The bifacial photovoltaic module (Bifacial PV) is a PV panel that can generate energy from both sides. This work studies different configurations of bifacial photovoltaic fields. Diffusing and retro-reflective (RR) materials are used to exploit the light reflected from the ground. So, the radiation not reaching the modules is minimized. The research includes ray tracing simulations of the possible ground configurations and field measurements on a small-scale system. Field measurements were developed to evaluate the effective contribution of the optimized fields to the production of electricity. The configurations measured in the field are compared in order to evaluate the actual increase in production compared to the classic photovoltaic (PV) module, which has only one active face. The studied configurations allow to increase the obtained peak power of more than 10 %.