Quick Answer
Bifacial panels require more space than monofacial panels, typically 1.2 to 1.5 times the space due to the need for rear-side illumination. This is because the panels must be mounted higher off the ground to allow for rear-side light collection, and the space between rows may need to be increased to accommodate the taller panels.
Understanding Bifacial Panel Requirements
Bifacial panels are designed to collect light from both the front and rear sides, leading to increased energy output compared to traditional monofacial panels. To maximize energy production, bifacial panels must be mounted higher off the ground, typically 6-12 inches, to allow for rear-side light collection. This increased height requirement means that more space is needed between rows of panels.
Space Requirements for Bifacial Panels
Studies have shown that bifacial panels require 1.2 to 1.5 times the space of monofacial panels. For example, if a monofacial panel array occupies 100 square meters, a bifacial panel array of the same power capacity would require approximately 120-150 square meters. This increased space requirement is due to the need for extra clearance between rows and the use of taller panels.
Optimizing Bifacial Panel Layout
To minimize the space required for bifacial panels, it’s essential to optimize the panel layout. This can be achieved by using taller frames or racks that allow for closer spacing between panels, while maintaining the required clearance for rear-side light collection. Additionally, using a tracker system can help to tilt the panels towards the sun, increasing energy output while reducing the space required for the array.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.