Choosing between dual-axis and single-axis solar trackers involves several key factors:
1. Energy Efficiency and Production
- Dual-Axis Trackers: These can adjust the solar panels in two directions, horizontal and vertical, to always face the sun directly. This results in higher energy production, typically increasing output by an additional 5% to 10% compared to single-axis trackers.
- Single-Axis Trackers: They increase energy production by 25% to 35% compared to fixed systems, making them efficient for locations with consistent sun paths.
2. Cost and Reliability
- Dual-Axis Trackers: Generally more expensive and complex, which can lead to lower reliability, more downtime, and higher maintenance costs.
- Single-Axis Trackers: Less expensive and more reliable due to fewer moving parts, resulting in fewer potential issues over their lifespan.
3. Geographic Location
The choice between dual-axis and single-axis trackers can be influenced by the geographic location, especially in regions with varying sunlight conditions. Dual-axis trackers are beneficial where sunlight angles change significantly throughout the year, while single-axis trackers are suitable for areas with consistent sun paths, such as near the equator.
4. Space Efficiency
- Dual-Axis Trackers: Can be more space-efficient due to higher energy production on a smaller footprint.
- Single-Axis Trackers: Typically require more space to achieve comparable energy production.
5. Maintenance and Complexity
- Dual-Axis Trackers: Require more maintenance due to their increased complexity and additional parts.
- Single-Axis Trackers: Simpler design leads to less maintenance and potentially longer lifespan.
Ultimately, the choice depends on your energy goals, budget, location, and whether you prioritize higher efficiency or lower costs and reliability.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-are-the-key-factors-to-consider-when-choosing-between-dual-axis-and-single-axis-trackers/
