The country’s electricity coordinator has started a program to track each megawatt hour of renewable power from when it’s generated until it’s consumed.
Some smelters in China's tin heartland of Yunnan are having to stop operating because of restrictions on power consumption in the southwestern province.
Authorities decided to act after concluding the spike in electricity consumption from server farms underpinning Bitcoin and other tokens was a key factor behind rising demand for coal.
Company said the ramp-up of production at its Obuasi mine in Ghana would be delayed, with operations remaining suspended after a miner went missing last week following a collapse of ground.