Can Bifacial Panels Work in Urban Settings?

Understanding Bifacial Panels in Urban Environments

Bifacial panels capture energy from both the front and back sides, increasing energy output by up to 25% compared to traditional monofacial panels. In urban settings, bifacial panels can benefit from reflected light from surrounding surfaces like buildings, pavement, and water. For instance, a study by the National Renewable Energy Laboratory (NREL) found that in a city with a high percentage of reflective surfaces, bifacial panels can increase energy output by up to 30%.

Shading and Orientation Considerations

While bifacial panels can work in urban settings, shading from nearby buildings or other obstructions can significantly reduce their efficiency. To mitigate this, it’s essential to choose a roof orientation that minimizes shading. For example, a south-facing roof with a slight east-west tilt can help reduce shading and maximize energy output. Additionally, installing the panels on a raised platform or using a tracker system can increase the area exposed to sunlight.

Designing Bifacial Systems for Urban Settings

When designing a bifacial system for an urban environment, it’s crucial to consider the roof structure, panel mounting, and cabling. To ensure optimal energy output, the panels should be mounted at a slight angle to allow for maximum sunlight exposure. Cabling and electrical connections should also be carefully planned to minimize shading and ensure a clean and efficient system. By carefully planning and designing the system, bifacial panels can be a viable option for urban settings, providing a significant increase in energy output and a reduced carbon footprint.