Some of the more successful projects include: Š continuous roll-out of high efficiency electrical motors at all the operations; 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 motion sensors to regulate lighting in low occupancy areas; Š soft start on all motors of to reduce start-up currents and thus reduce maximum demand; Š replacement of all incandescent and fluorescent lights with LEDs; Š correct sizing of electrical motors to ensure that they operate in the high efficiency band; and Š renewable energy (mainly solar power through photovoltaic panels) is used in limited projects as tests for a potential roll-out post FY 2020, specifically in office and change-house applications.