China to limit Bitcoin mining power usage

China plans to limit power use by some bitcoin miners, people familiar with the matter said, a potential challenge to an industry whose energy-intensive computer networks enable transactions in the cryptocurrency.

The People’s Bank of China outlined the plan Wednesday at a closed-door meeting, according to the people, who asked not to be identified because it wasn’t public. They didn’t detail how authorities plan to enact the curbs.

Chinese officials are concerned that bitcoin miners are taking advantage of low power prices in some areas and affecting normal electricity use in some cases, the people said. Local officials have been asked to investigate the high consumption associated with the industry, they said. Some Chinese miners have set up around hydroelectric facilities in the provinces of Sichuan and Yunnan.

The curbs will also involve other regulators such as the National Development and Reform Commission, which oversees the power supply. The PBOC didn’t immediately respond to a fax requesting comment sent after the close of regular business hours.

“This may have contributed to bitcoin coming off its daily highs and electricity usage certainly appears to be a significant challenge for the cryptocurrency in the years ahead,” said Craig Erlam, senior market analyst at online trading firm Oanda in London.

China Crackdown

Bitcoin, which surged 15-fold last year, pared gains on Wednesday and traded around $15,086 on Thursday.

China is home to many of the world’s largest bitcoin miners, who use massive computing power to verify transactions in the cryptocurrency. The global industry uses as much electricity as 3.4 million U.S. homes, according to the Digiconomist Bitcoin Energy Consumption Index.

Read more about the cryptocurrency’s energy impact here.

Beijing’s scrutiny of miners follows a sweeping cryptocurrency crackdown last year. Authorities outlawed initial coin offerings in September and have called on local exchanges to halt virtual currency trading.

Now read: The best graphics cards for crypto mining in 2017

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China to limit Bitcoin mining power usage