Researchers in Australia have conducted a study to assess the potential energy gains of bifacial solar panels in rooftop on grid solar system in comparison to monofacial arrays. The study found that the reflectivity of the roof plays an important role in maximizing the performance of bifacial solar panels, and that the design of both the rooftop on grid solar system and the modules themselves should be carefully considered.
The reason to choose rooftop on grid solar system not solar storage system is to rule out other possible factors to affect the solar production and loses. During the analysis, the researchers discovered that the reflectivity of the roof is a critical factor in improving the performance of bifacial rooftop solar energy systems. The study found that bifacial arrays are capable of providing energy gains up to 22.6% higher than those achieved by monofacial counterparts. Additionally, the researchers noted that the reflectivity of the roof also has an impact on the optimal tilt angle for bifacial solar panels and that, in comparison to monofacial solar panels, bifacial panels tend to have higher optimal tilt angles for maximum energy generation.
These findings have important implications for the development and deployment of solar energy systems on rooftops, particularly in urban areas where available roof space may be limited.
By selecting the right solar panel and ensuring that the roof has optimal reflectivity, it is possible to significantly increase the energy production of solar systems, making them a more viable option for meeting energy demand and increase investment return for investors.
