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Dual-Axis Solar Tracker System

When discussing large solar power projects, people frequently mention single-axis trackers because they are extremely popular. But let’s not forget about the versatility of the dual-axis solar tracker system! Unlike single-axis solar trackers that move from east to west, dual-axis trackers closely follow the Sun, gathering sunlight from all directions. They’re not just for large-scale projects—people use them in homes and businesses, too, thanks to their adaptability and efficiency.

The dual-axis tracking method is a game-changer for energy production from solar panels. This method can boost power output by a staggering 40%. Just imagine the potential of your solar setup with such a significant increase in efficiency!

What Is a Dual-Axis Solar Tracker System?



The dual-axis trackers gather sunlight from all directions: East, West, North, and South. They operate on two dimensions: the main and auxiliary. In simpler terms, this means that the tracker can move both horizontally and vertically to follow the Sun’s path throughout the day.

A single axis enables the solar tracker to shift from East to West, whereas the other facilitates its movement from North to South. They are known as dual-axis solar trackers.

Surprisingly, dual-axis trackers can produce up to 40% more electricity than fixed solar panels that don’t move. Because they move in all directions, dual-axis trackers are highly flexible.

Benefits of a Dual-Axis Solar Tracker System

A sophisticated device like a dual-axis tracker offers several advantages. If you’re considering purchasing one, here are some benefits to help you decide:

  • Dual-axis trackers move in all directions, maximizing energy production by tracking the Sun’s movement throughout the day. Solar panels follow the Sun across the sky to generate energy all day.
  • These trackers require minimal space, making them suitable for constrained areas.
  • In areas where the grid connection provides limited power, dual-axis solar tracking systems compensate by generating more energy.
  • Dual-axis trackers can produce up to 40% more energy than fixed panels.
  • They are particularly effective in locations with challenging terrain or obstacles, such as uneven ground or rocky terrain.
  • A dual-axis solar tracker may be more expensive initially. However, it will produce more energy in the long term. This makes it a wise investment for saving money over time.

Limitations of a Dual-Axis Solar Tracking System

Despite its many benefits, the dual-axis solar tracking system has some limitations. Considering these before making a purchasing decision is essential:

  • During cloudy weather, the solar panel tracking system may not perform as efficiently as expected, reducing energy production.
  • The moving parts in the dual-axis solar tracking system can wear out over time. This can cause the system to last less time than fixed-panel systems.
  • Maintenance costs are higher because of the increased number of components involved in the system.
  • The design of dual-axis trackers is complex, making setup challenging. It is advisable to seek professional installation rather than a DIY approach to avoid complications.

Single Axis vs Dual Axis: Comparing and Explaining

Which solar tracker is better – the single-axis or the dual-axis system – both have pros and cons. Let’s compare:

  • Single-axis solar trackers are more straightforward with fewer components, making them less complex and more cost-effective.
  • So, single-axis trackers score points for their simplicity and affordability.
  • However, dual-axis trackers are better at collecting energy because they can move in different directions to capture sunlight.
  • Dual-axis trackers outperform single-axis ones in efficiency. They also offer greater flexibility.

Our advice? Choose based on your needs.

If efficiency is crucial and space is limited, choose a dual-axis tracker, which follows the Sun from two axes.

However, if the budget is a concern, opt for a single-axis tracker.

Here’s a tip: Solar trackers might not be necessary for residential rooftop installations. They’re better suited for commercial and industrial solar setups.

More Efficiency

Single-axis trackers follow the Sun on a horizontal plane. Dual-axis solar trackers move in a circular path.

The Dual-Axis Solar tracking system incorporates a beetle’s strong and lightweight skin in its design. The structure consists of an elliptical tube (similar to the wing of a wind machine) and a simple lattice structure. It holds 90 72-cell PV panels.

The lattice structure safely moves its weight, and the elliptical tube gives it better rigidity and strength. This also makes the structure stiffer, helps the panels fit together better, and makes it last longer.

Thanks to a patented zero-backlash drive system, movement, and operation are smooth. The drive system is robust, withstands hurricane conditions, and keeps sliding even in strong winds.

Dual-axis solar trackers produce 40% more energy than fixed-roof systems. They also claim these trackers generate up to 30% more energy than fixed-ground-mount systems. This is because the panels are always facing the Sun.

Many residential customers choose dual-axis tracks because they have enough land and want to get the most out of it.

Companies frequently desire a two-axis tracker with an eco-friendly aspect for similar reasons.

Business customers often seek recognition for their green energy cache and the PR factor. They know how valuable it is to be able to make about 40% more power in the same space, especially when they are limited by regulations or space.

Benefits And Future Outlook

Dual-axis trackers are superior when the array is of a smaller size. Trackers with only one line can only work if there is enough space for a long span of panels. However, dual-axis arrays can work as well on bigger projects as single-axis models.

The cost of materials is about the same, but dual-axis trackers make more power because they follow the Sun more precisely. With only one pole to drive into the ground and an 11-foot stow-level height, land used for dual-axis projects can still be used for farming, and it is much easier to keep the plants under control.

Movement Over Two Axes Doesn’t Require Double The Maintenance

Like any other fixed or tracking solar system, you should check solar trackers once a year to ensure they work correctly. The examination should ensure that the system is accurately monitored and that the inverter and panels are generating effectively. Experts suggest replacing the hydraulic fluid in dual-axis trackers every eight to ten years. This is the only regular maintenance required for these trackers. It’s worth noting that the maintenance of dual-axis trackers is not significantly different from that of single-axis trackers, and the benefits they offer often outweigh the maintenance costs.

The Solar Earth INC team is always looking for ways to improve its dual-axis trackers. They want to make them more affordable, reliable, and efficient, which will help them stay competitive in the niche market.