Cost-effective methods for automisation of a mine pumping systems to realise energy cost savings

The electricity supply constraints in South Africa necessitated the implementation of Demand Side Management, (DSM), projects. The focus of this study is to determine the most cost effective load management strategy on an underground mine de-watering system. The mining sector was selected as it is one of the largest electricity consumers in South Africa. A substantial amount of energy is used to de-water the mining shafts of fissure and service water. Improved load management will result from automating the de-watering system. Load management makes it possible to reduce energy usage during the Eskom peak periods. This will result in financial savings for the mine, while creating the climate for a more reliable supply of electricity from Eskom.