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Monday, 20 April 2018 08:88

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Dual-Axis Solar Tracking Units

:: Dual Axis Tracking::

We are one of the very few businesses that offer Residential sized Dual-axis solar Trackers, as well as larger units more suited to Rural installations ! (see image)

DAT trackers capture the full extent of the sun, depending on your location by up to 14 hours per day in the south of Tasmania, this is done by follow the sun completely, relevant to your global location.  The increase in energy captured by dual-axis tracking is increased by up to 100% more than fixed flat mounted panels, as two-axes of rotation allow the tracker to position the solar panels directly perpendicular (facing directly at) to the sun’s rays from dawn to dusk.

Dual  Axis Tracker Software adjusts for the sun’s height (latitude) as well east to west rotation (sunrise to sunset), the electronic tracking software automatically adjusts for seasons as well as adjusting to face the sun as it sits low in the horizon at sunrise and sunset, and obviously high in the sky in the middle of the day.

Dual-axis trackers are more complex and hence more expensive, however, the big pay-off is they Greatly increase the Solar energy harvested buy over 50%*, they make more of a difference at greater latitudes (more southerly in Australia) where there is substantial seasonal variation in the sun’s height and arc in the sky.

Our standard DAT Kits come purposely over-engineered, each with 24V motors, east~west tracking via a Single-axis Slew Bearing, with north~south Tracking is done via a Linear Actuator (screw jack).

So, you can now choose a residential DAT Kit that holds from 2~18 x 380W or 1~14 x 500W Solar Panels !

The 8~18 Panel DAT unit are very similar units, the main different is the solar Racking to suit the panels fitted.

Larger commercial 48 Panel (96m2) DAT Kits commonly require a 3m x 3m x 1.2m Steel reinforced concrete foundation.

Our Fully Automatic DAT Kits all come with a choice of Mast Height, Slew Bearing, Tilt Chassis, Linear Actuator, Panel Racking, waterproof pole mounted Sun tracking unit, Wind speed indicator, and over rotation Stop switch kits.

These DAT studies shows how several Dual-axis Trackers can re-pay the initial investment cost from 3~8 years, depending on your system, this is done by replacing the power bill totally by self consuming all the power you produce, and then the system owner will no longer have an ongoing power bill for the next 30+ years, obviously using the correct Batteries is the turn-key part of a system.

What great about a battery system: Batteries allows you to first & foremost store the excess energy you harvest or produce for later consumption, by simply drawing energy directly from your batteries.

So basically, batteries are charged to full capacity first - then during the day you have the choice to automatically send any excess energy to either operate say your Water-heater or Air-conditioner etc. - or export it straight into the State Grid for a feed-in tariff - This simple means that at sun set you will only be consuming your own energy from the Batteries until sun-rise, thus eliminate paying the retail price for power after sun set & during the day - That is how you become energy independent !

Performance of Fixed Flat Panels v Solar Trackers in Australia

Again, solar trackers increases the performance of solar PV panels in the shoulder periods of the day, where a static fixed mount panel would only receive obscured sun exposure. This can be seen in the graphs of side by side solar tracking panels & static fixed panels.

Dual Axis Trackers & Equipment

Dual Axis Movements. Dual Axis Movements. Dual Axis Slew Drive.

Dual-Axis Movements.


Pole type Foundation.


Dual-Axis Slew Bearings.

Dual Axis Slew Drive.   Dual Axis Slew Drive.   Dual Axis Slew Drive.

DAT-4 Unit:

Wide stand, with 90cm Mast, +90cm Tilt Mast.

Click here to see DAT-4 Kit.


DAT-4 Unit:

Narrow stand unit, morning angle position, with 130cm Mast, +90cm Tilt Mast.


DAT-6 Unit:

6x 72cell unit, with 130cm Mast, +90cm Tilt Mast.

Dual Axis Slew Drive. Dual Axis Slew Drive.   Dual Axis Slew Drive.

DAT-6 Unit:

6x 60cell panels, with 250cm Mast.


DAT-8 Unit:

8x 60cell Solar Panels with 90cm Mast, with Slew Bearing and Linear Actuator.


DAT-12 Unit:

12x 72cell Solar Array.

(12x 350W =4.2kWh/p)

Dual Axis Slew Drive.   Dual Axis Slew Drive.   Dual Axis Slew Drive.

DAT-8 Unit:

9x500W Panels (96 cell)

4.5kWh/p Solar Array.


DAT-16 Unit:

16x380W Panels

6kWh/p Solar Array.


DAT-24 Unit:

24x500W Panels (96cell)

12kWh/p Solar Array.

NEW Dual Axis Tracker.   NEW Dual Axis Tracker.    

NEW 2019 DAT-15 Foundation:

Using Sand Ground Screws.


NEW 2019 DAT-18 Foundation:

Heavy Duty Ground Screws.

NEW Dual Axis Tracker.   NEW Dual Axis Tracker.    

NEW 2019 DAT-15 Units:

Dina-Bolt Concrete slab mounting, saving on labour.


2019 DAT-18 Units:

Foundation Legs can also Bolt to Ground Screws Flange.


Soil Ground Screw.

Rock Ground Screw.


Ground Screws

Ground Screws are available in dozens of various lengths and diameters, suitable for different ground conditions, from Clay, Sand and special Rock screws etc..

Dual Axis Slew Drive.   Dual Axis Slew Drive.   Dual Axis Slew Drive.

DAT-42 Unit:

14.7kW = 42x350W Array.


DAT-42 Unit:

14.7kW = 42x350W Array.


Car park Solar Array.

Dual Axis Slew Drive.   Dual Axis Slew Drive.   Dual Axis Slew Drive.

7.6cm (3") Dual-Axis

Geared Slew Bearing.

Unit weight 33kg.


17.8cm (7") Dual-Axis Motorised Slew Bearings.


17.8cm (7") Dual-Axis Motorised Slew Bearings.

Unit weight 50kg.

Linear Actuator   Palletised DAT Kits.   Palletised Solar Panels

Linear Actuator for Latitude (Tilt) Tracking.


Palletised DAT Kits.


Palletised Solar Panels.

NB: Solar Arrays without Battery storage, will provide little return on investment using the 6~11 cents/kWh Retailer feed-in tariff, as you simply remained enslaved to the State Grid & electrical Retailers, by choosing to continue paying the retail price for power after sunset!

The purpose of Solar Trackers is to generate substantially more power than a standard fixed flat panel Solar array, improving generation increases independence, and when solar & battery storage is used a Reposit Box can earn you $1.00kWh GridCredits.

Usually 3.5~10kWh is the maximum feed-in Tariff capacity limit in most states, fitting a solar tracker system without Batteries, only allows you to minimise your power bills, by usually exporting 70~80% of your daytime power into the State Grid for little return, many people simply fail to understand and miss the point of becoming Independent, buy simply generating a small income where no other means are available.

For a small 1.3kWh installation the up front cost with a tracker is higher, and the payback period is a little longer.  In reality, investing the same amount on additional solar cells would yield higher generation volume, with little financial return to the system owner without battery storage.   We only recommend purchasing a multi voltage Hybrid inverter, and 350W solar panels, don't be fooled into purchasing 220~270W solar panels, as they harvest 30% less power & more panels are required, creating a larger footprint to produce the same power.

An over size inverter will let you control your future power production and distribution, hybrid-inverters are designed to handle multiple input voltage from several power sources, such as Solar, Wind, Aqua, Battery and even Generator input, ours generators all come with built in Battery charge management, that once programmed, can automatically start or shut-down a generator as programmed.

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