What is bifacial photovoltaic module technology?

The higher the photovoltaic module, the greater the rear-side gain. However, when the height exceeds 1.3 meters, the increase diminishes. Considering costs and maintenance, it is recommended to keep the height between 0.7 and 1.2 meters.

Bifacial modules can utilize light reflected from the ground to generate energy. The higher the reflectance, the better the production efficiency. The reflectance ranking of different ground types is: snow > sand/concrete > soil > grass > water.

During installation, it is important to position the module at an angle and direction that receive maximum solar radiation. In Italy, the optimal angle is the local latitude minus 10 degrees. For example, approximately 35° in Milan, 32° in Rome, and 27° in Sicily. It is recommended to orient the module towards the southwest.

An appropriate distance reduces shading and ensures uniform illumination. The specific distance should balance production efficiency and costs, based on project requirements.

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The crossbars should be positioned at the edges of the module to avoid shading the rear side. During design, it is important to consider the impact of the rear side and the surrounding environment on energy production gain.