What is a solar tracker and how does it work?
Dec 19, 2023
Solar trackers are devices that enhance the efficiency of solar panels by continuously adjusting their position to track the movement of the sun. Let's explore how solar trackers work and the benefits they offer.
A solar sun tracker typically consists of a mounting structure, a tracking mechanism, and a control system. The mounting structure holds the solar panels and allows them to move in response to the sun's position. The tracking mechanism, powered by motors or actuators, adjusts the tilt and azimuth of the panels to align with the sun's movement. The control system, equipped with sensors and algorithms, determines the sun's position and sends commands to the tracking mechanism.
The solar panel tracker works based on the principle of maximizing sunlight exposure. As the sun rises in the east and sets in the west, it moves across the sky in an arc. Fixed solar panels, when installed at a fixed tilt and orientation, can only capture sunlight optimally for a limited period during the day. However, solar trackers continuously adjust the position of the panels to face the sun directly, maximizing sunlight exposure throughout the day.
To track the sun's movement, the solar pv tracker uses use various tracking algorithms and sensors. Some trackers rely on astronomical calculations to determine the sun's position based on time, date, and location. Others use light sensors or GPS technology to detect the sun's position in real-time. The control system processes this information and sends signals to the tracking mechanism to adjust the tilt and azimuth of the panels accordingly.
The benefits of the solar-tracker are significant. By continuously tracking the sun's movement, solar trackers can increase energy production by 20% to 40% or even more compared to fixed installations. They optimize sunlight exposure, capture sunlight at the most favorable angles, and overcome shading issues. Solar trackers are particularly beneficial in regions with lower solar irradiation or during seasons with lower sun angles.
In conclusion, solar trackers are devices that enhance the efficiency of solar panels by continuously adjusting their position to track the sun's movement. By optimizing sunlight exposure and increasing energy production, solar trackers play a crucial role in maximizing the benefits of solar energy and promoting a sustainable future.
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