Windmill or SolarQueensland Wind and Solar 
supply the LORENTZ solar pumping system. This company sees huge potential for the use of solar-powered pumping systems. There is no doubt that solar powered pumps are efficient, reliable, cheap to run, easy to install, and require little or no maintenance.
Unlike windmills, solar pumps will pump the most water when you need the most - those long hot dry still days that Australian summers are famous for. There is a large range of LORENTZ pumps suited to many different pumping applications. The PS200, PS600 and PS1200 models are full 316 stainless steel helical rotor pumps that can suit bore or surface water applications to a maximum head of 230 metres. The LORENTZ product range also includes a range of solar-powered centrifugal pumps, and the Badu-PS600, PS150-Boost and PS200-Air special purpose pumps. All the models pump directly from solar panels utilizing an electronic controller, so there is no need for batteries, though battery charging can be added if desired. A power-pack is also available so mains or generator power can be used as a backup for high water-demand periods. LORENTZ pumps are very competitively priced and are usually supplied as a complete system kit with full instructions so that they can be simply self-installed if required. 
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