Solar Pumping for Centre Pivot - WA

Western Australia
Running a station consisting of 5,000 head of cattle, three and a half hours north of Perth, WA, our client required a reliable source of water using a source of energy regularly available to them.

Due to the increasing price of diesel and electricity, providing enough feed to their stock is what drew them to the request of a solar pumping system for two centre pivots. This would provide year round water supply to an area of 40 hectares per pivot.

The main challenges for REAQUA were to provide more than 90m3/hr of water at a delivery pressure of 30psi at the base of the pivot, via existing 6” bores. The standing water level (including draw down) was between 40-50 metres, requiring a total dynamic head of 75 metres. In addition, the movement of the pivot needed to be considered.

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While consideration was given to run the pivot’s movements from solar, an existing SWER line was deemed to be the simplest solution.

The end result saw the LORENTZ solar pumping system provide an average of 1.6ML per day from the two systems. The client plans to install another three systems in the coming year to allow increase in cattle, and we are proud to be a part of that involvement again.

Two LORENTZ submersible pumping systems with 30kw 9 stage 6” pumps, running at 60Hz and supplied from two independent ground mounted 45kW solar arrays.

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