Why Choose Horizontal Single Axis Solar Trackers
As solar power continues to expand globally, choosing the right mounting system becomes critical for maximizing energy generation. In today’s utility-scale solar projects, three main types of mounting systems are widely used: fixed-tilt systems, horizontal single-axis trackers (1P / flat single-axis), and dual-axis trackers. Curious why horizontal single-axis trackers are the go-to choice for solar projects today? In this article, we break down how they differ from other systems and show how GF New Energy’s 10+ years of experience in solar tracker components can help you get the most out of your solar project.
Figure 1: Fixed Bracket vs. Solar Tracker ✅
1. Fixed-Tilt vs. Solar Trackers
Fixed-Tilt Systems
Fixed structures hold solar panels at a constant angle.
Advantages: simple design, low cost, low maintenance
Limitations: panels cannot follow the sun → lower daily and annual energy yield
Solar Tracking Systems
Trackers allow the panels to rotate, following the sun’s movement and increasing energy production. There are two major types:
1) Horizontal Single-Axis Tracker
Rotates around a horizontal axis from east to west. Widely used in utility-scale solar farms. Delivers 15–25% higher generation than fixed-tilt systems. Lower structure complexity compared with dual-axis.
Figure 2: Horizontal single-axis 1P solar tracker
2) Dual-Axis Tracker
Tracks both the azimuth and elevation angles. Provides higher theoretical yield, but more expensive, more complex, and less stable in high-wind environments.
Figure 3: Horizontal single-axis 2P solar tracker
2. Market Adoption: Why Single-Axis Trackers Dominate
In global utility-scale projects, horizontal single-axis trackers account for over 80% of tracking installations.
Reasons include:
-High return on investment: noticeable energy gain with relatively low additional cost
-High reliability: simpler mechanical structure
-Lower O&M requirements
-Excellent wind resistance with the right damping and control system
-Compatibility with large-format modules and bifacial modules
This balance of performance, cost, and stability makes 1P/flat single-axis trackers the mainstream choice worldwide.
Figure 4: Solar tracker farm.
3. Why Horizontal Single-Axis Trackers Perform Better
Higher Energy Yield
– Panels follow the sun throughout the day
– Improves module angle of incidence
– Especially effective for bifacial modules
Better Economics
– Lower capex than dual-axis
– Lower maintenance cost
– Shorter payback period
High Structural Stability
– Well-tested under extreme climate conditions
– Supports large-scale deployment
4. GF New Energy: Over 10 Years Dedicated to Solar Tracker Components
GF New Energy has been deeply rooted in the solar tracking industry for more than a decade. Our products are designed specifically for long-term, high-stability operation in utility-scale tracking systems.
Solar Tracker Controller
Our Solar Tracker Controller is designed with advanced technology to provide precise solar tracking functionality, maximizing the energy efficiency of solar panels. Key features include:
3D Backtracking Algorithm: Optimizes the angle of solar panels to maximize energy capture efficiency
Cloud Platform Monitoring: Real-time monitoring and remote control, enhancing system operability and reliability.
Easy Battery Replacement: Convenient maintenance reduces downtime and ensures stable, continuous operation.
Figure 5: Solar tracker controller GF-S-V2.
Zinc-Aluminum-Magnesium Damper
High wear and corrosion resistance for extreme environments. Advantages:
Strong Weather Resistance: Adapts to extreme weather conditions.
High Cost-Performance Ratio: Higher performance at lower cost than painted dampers.
UV and Dirt Resistance: Protects from UV rays and dirt, extending service life.
Figure 6: GF Zinc-Aluminum-Magnesium Solar Damper
Metal Bearings
Exceptional heat resistance and load-bearing capacity. Key features:
High Load Capacity: Suitable for large-scale projects.
Self-Lubricating Materials: Reduces maintenance and prolongs service life.
Corrosion Resistance: Outstanding performance in harsh environments.
Figure 7: GF Zinc-Aluminum-Magnesium Solar Bearing
5. GF New Energy: A Trusted Partner in Global Projects
GF products have been successfully integrated into multiple large-scale solar power plants worldwide. We supply critical components—including controllers, dampers, and bearings—to several global leading tracker manufacturers. If you’re interested in enhancing the performance and reliability of your solar tracking system, GF New Energy is ready to support your project.