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How Photovoltaic Panels Use Solar Trackers: All You Need to Know
Do you want to maximize the performance of your photovoltaic system? Consider using solar trackers. These systems help your solar panels follow the sun’s movement, ensuring they receive the maximum amount of sunlight throughout the day. The more sunlight they capture, the more electricity they produce.
Let’s dive deeper into how these systems work and why they might be a great addition to your energy setup.
Enroll in our solar PV installation course to gain a comprehensive understanding of this efficient energy solution.
**How Does a Solar Tracking System Work?**
A solar tracking system, also known as a sun tracker, actively adjusts the position of your solar panels to align with the sun's path. This is different from fixed systems, where panels remain in a static position.
In a fixed system, the angle at which sunlight hits the panels changes throughout the day. This is called the "angle of incidence," and it affects how much energy is converted into electricity. A narrower angle means more efficiency—so when the panel is perpendicular to the sun, it produces more power.
Solar trackers continuously adjust the orientation of the panels, keeping them facing the sun directly. This allows for greater solar radiation absorption and increased energy production. They are commonly used in large-scale installations, such as ground-mounted systems and solar trees.
The system includes components like PLCs, signal processors, electromagnetic and mechanical control modules, and sensors. It's powered by an actuator that controls the entire mechanism. Alongside the tracking equipment, there are also PV components like inverters, racks, and solar cells.
When strong sunlight hits the panels, the sensors detect the light and send signals to the PLC, which then activates the motor to rotate the panels toward the sun.
For more details on how solar photovoltaics work, visit our resource section.
**Benefits of Using Photovoltaic Panels with Solar Trackers**
Are solar trackers worth the investment? Here are some key benefits:
**Increased Efficiency**
Solar tracking systems can generate significantly more electricity than fixed arrays. Single-axis trackers can boost output by 25–35%, while dual-axis trackers can increase production by up to 30–45%.
**Reduced Costs**
While the initial cost and maintenance of solar trackers can be high, the long-term savings on non-renewable energy make them a valuable investment, especially for commercial use.
**Improved System Longevity**
Designed to withstand harsh weather conditions, solar tracking systems are built for durability and long-term reliability.
**Types of Solar Trackers**
There are two main types of solar trackers: passive and active.
**Passive Solar Trackers**
These systems move without an external power source. They use heat from the sun to expand gas inside, causing the panels to tilt toward the sun. When the gas cools, the panels return to their original position.
**Active Solar Trackers**
These require an external power source to operate. They use sensors to determine the optimal panel position and are typically used in larger installations. Active trackers can be single-axis or dual-axis.
**Single-Axis Trackers**
These move panels along one axis, usually east to west, improving efficiency without requiring additional panels. They are cost-effective and reliable.
**Dual-Axis Trackers**
These track the sun in two directions, both east-west and north-south. They offer higher efficiency but come at a higher cost and complexity.
**Factors to Consider When Choosing a Solar Tracker**
Before installing a solar tracker, consider factors like climate, site conditions, and solar exposure. Cloudy days may reduce the effectiveness of the system, so it’s best suited for areas with consistent sunlight.
**Installation and Maintenance of Solar Trackers**
Proper installation and regular maintenance are essential. Choose a flat, sunny location and follow manufacturer guidelines carefully. Regularly inspect the system for wear and avoid DIY repairs—always consult a professional.
**Frequently Asked Questions (FAQs)**
What is the purpose of solar trackers? They optimize solar panel positioning for maximum sun exposure, increasing energy output.
What is the difference between solar panels and solar trackers? Solar panels are fixed, while trackers adjust to follow the sun.
Do all solar panels have trackers? No, trackers are optional and can add significant cost.
**Conclusion**
If you want to boost your solar energy output, consider adding a solar tracker. While they may cost more upfront, the long-term benefits often justify the investment. Check out our solar PV installation course to ensure your system is reliable and efficient.
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