as a result the deployment of renewables has increased considerably particularly of solar pv which in outstripped the growth in any other form of new power generation with renewables reaching nearly a quarter in the world s electricity generation iea b based on estimates improved energy management through the scaledup use of renewables can reduce mining companies energy costs by for existing operations and up to for new mines deloitte there is scope for further research to look at issues related to the energy transition of processing facilities section