The power costs associated with operation of mine water pumpimg systems can be optimised by considering the high and low Eckom Megaflex power cost tariffs. These systems are investigated and modelled, taking into account surrounding operational constraints like water storage capacity, interconnections, flows, temperatures as well as individual pump efficiency and the number of available pumps. Control software is then deployed to forward-plan scenarios and control operational parameters in order for pumping requirements and capacity to be scheduled to be minimised during peak times and maximised during off-peak times. Good examples of these are municipal and regional water and pumping networks as well as mine cooling and fissure water pumping systems.
BBEnergy personnel have successfully completed several such projects, including sourcing funding from Eskom DSM and have designed and commissioned energy management systems incorporating pump Scheduling at Impala Platinum.