From bloomberg nef13 Mar 2020 06:30
Alternatively, miners can also install renewables on site at their operations. Mines could save up to 25% of their total electricity costs by leveraging solar, wind, or batteries on site, according to BNEF models. On-site renewables will appeal to mines where grid or fuel access is difficult, expensive, or unreliable – a common theme in markets like South Africa, Zimbabwe and Australia.