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Bifacial PV Canopy System in High Latitude, Model Development and Validation with First Months of Monitoring Data
S. Ranta, H. Huerta Medina, S. Jouttij√§rvi, A. Heinonen, A. Driesse
Building Integration, Ray Tracing, System Performance, Bifacial PV, Modelling
PV Systems Engineering, Integrated/Applied PV
Subtopic: Engineering Design and Installation of PV Systems
Event: 8th World Conference on Photovoltaic Energy Conversion
Session: 4DO.5.6
1132 - 1136
ISBN: 3-936338-86-8
Paper DOI: 10.4229/WCPEC-82022-4DO.5.6
0,00 EUR
Document(s): paper


A seaside canopy with an integrated bifacial photovoltaic system (PV) was set up for a residential district in the city of Naantali, Finland. This system is part of the PV demonstration built for the Naantali Housing Fair in 2022 and integrates a bifacial 100 kWp photovoltaic power plant in the residential district. A modelling-based simulation tool was earlier developed to predict PV performance of bifacial systems in Nordic conditions for vertical configurations. The model was validated by comparing the simulation results with performance data recorded from East/West vertical bifacial arrays at separate locations. The aim of this study is to find the best tools to model canopy systems in case, especially the incident irradiance calculation for lower tilt angles, high clearance, and high latitude configurations to accurately forecast the energy yield. A more advanced ray-tracing tool Radiance was used for the study. The aim was to define the minimum level of complexity needed for a reliable model.