Bitcoin digital currency. (Photo: AFP/VNA) On May 28, British police said they had discovered a case stealing electricity large capacity to mine the digital currency bitcoin. Specifically, in a dismantling of a cannabis plant, the anti-narcotics police force in England suddenly discovered an organization Bitcoin “mining” using a large power source to steal from the national grid. The facility is located in an industrial area in Birmingham – the UK’s second largest city. Through inspection, the police discovered about 100 computers dedicated to “mining” bitcoin. At the time the police arrived, there was no one at the facility. The case is currently under investigation. The digital currency “mining” system consumes a large amount of electricity, so some lines specializing in “mining” cryptocurrency in the world often choose to steal electricity to reduce costs and increase profits. According to Deutsche Bank, “mining” bitcoin alone consumes the same amount of electricity as Switzerland consumes each year. On May 12, the world’s largest electric vehicle maker Tesla (USA) announced that it would stop using bitcoin in its car sales due to concerns about environmental issues. CEO (CEO) of Tesla, American billionaire Elon Musk states: “Tesla stopped using bitcoin car sales. We are concerned about the growing use of fossil fuels for bitcoin mining and trading, especially coal – the worst-emitting fuel.” Iranian President Hassan Rouhani has announced a four-month ban on all crypto-mining activities after many major cities suffered power cuts due to power shortages.