Saft lithium-ion (Li-ion) battery energy storage system (BESS) is playing a key role in helping Gold Field’s Agnew mine make the switch from fossil fuels to wind and solar power. In Saft’s first project for EDL, the BESS has been installed within a hybrid renewable microgrid with an installed capacity of 56 MW, which is the first to incorporate wind power on a large scale at an Australian mine. Energy storage is critical to enable the EDL microgrid to maintain power quality as it integrates an increasing level of volatile and unpredictable wind and solar energy. The Agnew Gold Mine is an underground operation located 1,000 kilometres northeast of Perth in Western Australia. The site covers over 600 square kilometres and has the capacity to process 1.3 million tonnes of ore a year.