The most important of these are: Š continuous roll-out of high efficiency electrical motors at all the operations; Š installation of variable speed drives where applicable; Š optimisation of the control of all the power factor correction banks at all operations to ensure optimal performance; Š load management carried out through the real-time energy management system, monitoring the maximum demand in the control room to ensure that systematic plant start-up and hoisting during peak times is limited to a minimum; Š control of all ventilation fans from a central control room on the mine; Š pump control on all pumps to ensure pumping occurs at off-peak times; Š variable speed drives on all conveyors that regulate the speed depending on the load; Š control of lighting, with reduction of intensity if there is no activity in the area; Š soft starter on all motors of start-up currents and thus reduce maximum demand; and Š correct sizing of electrical motors to ensure that they operate in the high efficiency band.