Cloud-based tool accurately simulates bifacial solar panel technology

September 09, 2019 //By Nick Flaherty
imec has teamed up with Lithuanian software developer PVcase on software that can accurately model power from newer bifacial solar photovoltaic (PV) technology
imec has teamed up with Lithuanian software developer PVcase on a cloud-based tool that can accurately model power from newer bifacial solar photovoltaic (PV) technology

Belgian reseach institute Imec has teamed up with a Lithuanian software company on a tool to help design and accurately predict the energy yield of solar farms using the latest bifacial photovoltaic (PV) panels. First blind tests of the prototype software already show best-in-class results for bifacial PV plants.

The ability to predict the energy yield (and thereby the return on investment) of their plants in the design phase is crucial. Current available software tools have limited modelling capabilities for bifacial and sun-tracking systems, resulting in time consuming design iterations and limited accuracy for these new technologies. Bifacial systems also generate electricity from sunlight reflecting on the backside of the solar panels, resulting in an increased production and lower levelized cost of electricity (LCOE). Their market share is predicted to grow to 40% of all installations in the next decade. While sun-tracking systems promise LCOE reductions as well, the combination of both technologies have the potential of reaching record low energy-cost levels.

The simulation software engine developed by imec relies on a bottom-up physics-based methodology combined with calculation-efficient ray-tracing algorithms, resulting in an accurate and computation efficient software tool.  Combining the simulation methodology with the expertise of PVcase in PV site planning and software development creates a streamlined workflow to design PV power plants including accurate energy yield, and will be ready in the first half od 2020.

“PVcase is an important partner for us because of their experience in commercial PV simulation software. The recent interactions have proven that we have an ideal match to successfully develop our prototype into a market-ready solution. It’s this kind of innovations and collaborations that show that Europe still is bringing substantial added value to the globalized PV market," said Jozef Szlufcik, PV department director at imec.

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