Tailings dam material could be one of the waste materials that could be used to create high-density fluids (HDF) that would enable a new-generation and much more capable form of pumped hydro-energy storage system. This technology is being developed by UK company RheEnergise, in partnership the Universities of Exeter and of Greenwich, in England. And on Thursday the company announced that it had won a £1-million (roughly R21-million) grant from the UK Government’s Energy Entrepreneurs Fund (EEF) …
