Quick Answer
Dual-axis trackers can increase efficiency by 30-50% compared to fixed mounts and up to 25% compared to single-axis trackers, making them a valuable investment for large-scale solar installations.
Benefits of Dual-Axis Trackers
Dual-axis trackers use a combination of azimuth (east-west) and elevation (tilt) movements to align solar panels with the sun’s position throughout the day. This allows them to capture more sunlight and produce more electricity. For example, a study by the National Renewable Energy Laboratory found that a dual-axis tracker can increase energy production by 45% compared to a fixed mount in a location with high solar radiation.
Technical Considerations
When designing a dual-axis tracker system, system engineers must consider factors such as tracker size, mounting structure, and control systems. A larger tracker size can increase efficiency, but may also increase costs and structural requirements. For example, a 100 kW tracker with a 12-meter row spacing can achieve an efficiency gain of 40% compared to a fixed mount, while a 50 kW tracker with a 6-meter row spacing can achieve an efficiency gain of 25%.
Installation and Maintenance
Dual-axis trackers require more complex installation and maintenance procedures compared to fixed mounts or single-axis trackers. System engineers must ensure that the tracker system is properly calibrated and maintained to maximize energy production and minimize downtime. For example, regular software updates and tracker alignment checks can help maintain optimal performance and prevent costly repairs.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.