Single-axis solar trackers can perform relatively well in regions with high cloud cover, although their effectiveness might be slightly reduced compared to clear conditions. Here are some insights into their performance in cloudy environments:
Performance in Cloudy Conditions
- Energy Boost: Single-axis trackers generally increase energy production by about 20-25% compared to fixed systems, which applies to both sunny and cloudy conditions. However, the efficiency might be slightly lower in cloudier regions due to reduced solar irradiance.
- Schedule-Based Tracking: Research suggests that single-axis trackers using a schedule-based approach can perform better in cloudy and rainy weather conditions. This is because they rely on pre-programmed trajectories rather than real-time solar position tracking, which can be less accurate under cloud cover.
- Algorithmic Improvements: Some studies focus on optimizing tracking algorithms to enhance performance under various radiation conditions, including diffuse radiation prevalent in cloudy weather. These algorithms can potentially improve energy capture by optimizing the tilt of the panels to maximize irradiance, even when direct sunlight is not available.
Conclusion
While single-axis trackers may not perform as optimally in regions with high cloud cover compared to clear conditions, they still offer significant advantages over fixed systems. Advances in tracking algorithms and scheduling can further enhance their efficiency in cloudy environments.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-do-single-axis-trackers-perform-in-regions-with-high-cloud-cover/
