How Should I Choose Between Fixed and Adjustable Mounts for Bifacial?

Considerations for Bifacial Mounts

When selecting a mount for bifacial solar panels, consider the system’s overall orientation and tilt. Fixed mounts are suitable for sites with consistent solar exposure and minimal shading. A fixed tilt of 20-30° is often optimal for maximum energy production in most locations. However, if your site experiences frequent shading or changes in solar exposure, an adjustable mount may be necessary.

Adjustable Mount Techniques

Adjustable mounts can be set to track the sun’s movement throughout the day, optimizing energy production and reducing the impact of shading. Some common techniques for adjustable mounts include single-axis and dual-axis tracking, with single-axis tracking being more cost-effective for small to medium-sized installations. Dual-axis tracking can increase energy production by up to 45% compared to fixed mounts, but requires more complex mechanics and potentially more frequent maintenance.

Soil and Shading Considerations

Soil conditions and shading patterns can significantly impact the performance of bifacial solar panels. In areas with dense vegetation or heavy soil, adjustable mounts can help mitigate the effects of shading and soil interference. Consider using a tracking system that can be adjusted to accommodate changes in soil conditions or seasonal shading patterns. This may include regular monitoring and adjustments to ensure optimal performance throughout the year.