Excellence in quality
Pivots in the hot zone
“We decided on the Bauer pivots because these irrigation machines as well as the company’s customer service enjoy very good reputations for quality,” explains Viktor Martens from Agroinvestment. In the years to come, up to twelve more pivots are to be installed. With the solar-powered pivot, Agroinvestment is utilizing the one resource that makes irrigation essential here while also making it possible in the first place in a region lacking a comprehensive power grid: the sun, which supplies power beyond measure! In the test run, the pivot was driven by a submersible motor pump. This 100 HP pump was powered by a 150 kW solar system.
In principle, the system functions very well, explains Viktor Martens. However, a cloudy sky can reduce the performance, and the pump does not always achieve the same level of pressure. This led to the introduction of a new concept. A pulse output water meter is installed on the central tower of the pivot, and the pulses (and thereby the water quantity) are converted to a speed in order to guarantee even irrigation. In other words: when less water is flowing, the pivot moves more slowly; with more water, the speed increases – a brilliant solution by Agroinvestment.