Quick Answer
Dual-axis trackers perform well in cloudy conditions, as they can adjust to track the movement of the sun even when it's partially obscured. This allows them to capture more energy from the available sunlight. Their ability to optimize energy production in less-than-ideal conditions makes them a popular choice for off-grid installations.
Benefits of Dual-Axis Trackers in Cloudy Conditions
Dual-axis trackers utilize a complex system of motors, gears, and sensors to continuously adjust the angle and orientation of the solar panels. This enables them to maximize energy production by tracking the sun’s movement, even when it’s obscured by clouds. In ideal conditions, they can increase energy production by up to 45% compared to fixed mounts.
Tracking Algorithm and Sensors
The tracking algorithm used in dual-axis trackers is designed to account for the changing position of the sun throughout the day. By integrating data from sensors that monitor temperature, humidity, and solar irradiance, the tracker can make precise adjustments to optimize energy production. Some trackers also feature advanced predictive algorithms that can anticipate cloud cover and make adjustments accordingly.
Real-World Applications
In areas with frequent cloud cover, dual-axis trackers can provide a significant return on investment. For example, a 10 kW solar array with dual-axis trackers in a region with 200 cloudy days per year can generate up to 25% more energy than the same array with a fixed mount. This increased energy production can help offset the higher upfront cost of the tracker system.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.