Solar Earth Inc.

What Is A Dual-Axis Solar Tracker System?

When talking about big solar power projects, we often hear a lot about single-axis trackers because they’re really popular. But let’s not forget about dual-axis trackers! Unlike single-axis solar tracker ones that move from east to west, dual-axis trackers closely follow the sun. They’re not just for big projects—people use them in homes and businesses too.


Stats and customers

The M18kD Gearless Dual-Axis Solar Tracker System is the new model from Solar Earth INC. It is made with the same rigidity, strength, and advanced hydraulic motion as the other products in that series. However, it has the technological benefit of being able to get up to 40% more energy from a fixed panel. 

That’s because the M18kD Gearless Dual-Axis Solar Tracker is much better at finding the sun’s position both horizontally (around its axis) and vertically (around its axis). It does this by using an astronomical formula to find the sun’s position in both directions. The M18kD Gearless Dual-Axis Tracker meets the needs of the market now that feed-in tariffs have ended.

More Efficiency

Single-axis trackers follow the sun across a horizontal plane, but dual-axis solar trackers move in a more direct, circular path.

Dual-axis trackers made by Solar Earth INC. The structure of the M18kD Gearless Dual-Axis Solar Tracking system is based on the skin of a beetle, which is known for being very strong for its weight. The structure is made up of an elliptical tube (like the wing of a wind machine) and a simple lattice structure. It holds 90 72-cell PV panels.

The lattice structure safety moves the structure’s weight, and the elliptical tube gives it better rigidity and strength. This also makes the structure more stiff, helps the panels fit together better, and makes it last longer.

The movement and operation are smooth thanks to a patented zero-backlash drive system. Because it can keep sliding even when there are strong winds, the drive system is very strong and can withstand even hurricane conditions.

Solar Earth INC. says that its dual-axis solar tracks make 40% more energy than a fixed-roof system and up to 30% more than a fixed-ground-mount system 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.

Corporations often want a dual-axis tracker with a green twist for the same reason.

“Business customers often want to be seen for their green energy cache and the PR factor.” The business customer knows 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

When the array is small, it’s clear that dual-axis trackers are the best. Trackers with only one line can only work if there is enough space for a long span of panels. But dual-axis arrays can work just 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

Just like any other fixed or tracking solar system, Solar Earth INC.’s Renewables trackers should be checked once a year to make sure they are working right . The inspection should make sure that the system is tracking correctly and that the inverter and panels are producing.” A change of the hydraulic fluid every eight to ten years is the only regular care that is suggested for dual-axis trackers.

The Solar Earth INC team is always looking for ways to make its dual-axis trackers cheaper, more reliable, and better at tracking in order to stay ahead in this niche market. The M18kD Gearless Dual-Axis Solar Tracking system from Solar Earth INC will be self-powered, meaning it will still work if the power goes out. It will get its power straight from its panels. 

With our 2-axis solar trackers, we’ll keep coming up with new ways for people to get more from the sun.

Contact us now for more info about Dual-axis solar solar projects.

Our Dual-axis Solar Projects

Hogan Escalon CA – 1 day tracking July 5th

Marysville CA – south-east angle – Sept 17 2016

Marysville CA – south-west angle – Sept 17 2016

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