Share with friends and circle of friends with wechat scan QR code < / P > < p > < p > < p > July 22 news, electric car manufacturer Tesla CEO Elon Musk said on Wednesday local time that the company may start to accept bitcoin to buy its car again. At the same time, he confirmed that SpaceX, his US space exploration technology company, and himself also hold bitcoin p> At the B-word conference hosted by crypto Council for innovation, musk said: "it seems that the mining and trading of bitcoin is turning to renewable energy, and many heavy-duty coal-fired power plants in use have been shut down. I would like to do more research to confirm that the utilization rate of renewable energy in this field may reach or even exceed 50%, and that the proportion will continue to increase. If so, Tesla is likely to return to bitcoin. " p> In May this year, musk tweeted that Tesla would suspend the use of bitcoin to buy vehicles due to concerns about "the rapid increase in the use of fossil fuels in bitcoin mining and trading". Since then, China has strengthened cryptocurrency regulation. New data released by Cambridge University show that many miners are going to the United States, which is now the second largest destination for bitcoin miners in the world p> < p > the United States can provide cheaper renewable energy. Fred Thiel of Marathon digital said most new bitcoin miners in North America will use renewable energy to power or offset natural gas supply with renewable energy credits. Whit Gibbs, chief executive of compass, estimates that more than 50% of us bitcoin mining uses renewable energy p> "In the long run, renewable energy will be the cheapest energy, but it can't be achieved overnight," Musk said. However, as long as the bitcoin mining industry has the consciousness, determination and practical efforts to develop renewable energy, Tesla obviously supports this trend. " p> Meanwhile, musk confirmed for the first time at the B-word conference that besides Tesla, SpaceX and himself all hold bitcoin. He has no plans to sell any bitcoin from his personal portfolio. "Although Tesla no longer allows people to use bitcoin to pay for cars, it has not yet sold bitcoin," he said. We don't sell any bitcoin, neither myself nor SpaceX. " p> In addition, musk revealed that he also holds other cryptocurrencies, including etherum and dogcoin. After the disclosure of the news, Ethereum prices rose further p> On Wednesday, bitcoin's trading price rose nearly 8% to about $32270. Since mid May, bitcoin and other cryptocurrencies have fallen sharply, losing about $1.3 trillion in market value. Bitcoin's growth this year has fallen to about 8% from a record of nearly $65000 set in April. By contrast, the S & P 500 index is up 15% in 2021 p> At the B-word conference, musk held discussions with Jack Dorsey, CEO of Twitter and payment company square, and Cathie wood, founder and CEO of ark investment p> < p > musk asked Dorsey if he was willing to accept bitcoin as a payment method for twitter advertising. Dorsey evaded the issue, despite his earlier promotion of a decentralized social networking project called bluesky, which was first announced in December 2019. By January of this year, things didn't seem to have made much progress p> < p > but dorsebutt has a lot of confidence in bitcoin, even though he doesn't think twitter should accept bitcoin as a way of payment. "I hope it can create world peace," he said of the cryptocurrency( Small) < / P > < p > related reading: < / P > < p > < p > < p > wall street news < / P > < p > a few days before this online activity, musk also sang a lot about dog money. At that time, he tweeted that his "youngest son, lil x, has been holding dog money like a champion, and has never said the word" sell "once.". When a twitter blogger asked musk and lil x where they could see dog coins in the future, lil x pointed to the moon p> < p > market participants also expressed their views on the future trend of bitcoin. In an interview with Peng Bo, Naeem Aslam, chief market analyst of AVA trade Ltd., pointed out that the market was worried that bitcoin would go down sharply once it broke the $30000 mark, but that was not the case. Currency prices have been very stable, there has been no panic selling. But he also pointed out that bitcoin is still likely to test the support level of $25000 in the next few weeks. Pember also quoted Steen Jakobsen, chief investment officer of Shengbao Bank of Denmark, as saying that bitcoin and Ethereum tried to rebound after bitcoin fell through the key area of $30000, but they need to stand above $32000 if they want to "get out of the pit" completely p> < p > bitcoin, Ethereum and dogcoin all showed a significant upward trend in the last 24 hours, among which Ethereum once briefly broke the integer threshold of US $2000, while dogcoin once stood above US $0.2 for a short time, and even challenged us $0.21, but they all fell back at the deadline. According to the market data of coindesk, as of press release, bitcoin was at $31669, up 5.75% in 24 hours; Ethereum reported $1940.80, up 7.88% in 24 hours; The doggie was at $0.1877, up 7.81% in 24 hours p> < p > however, from the high point of this year, the decline of the above three cryptocurrencies is still more than 50%, and the decline of dog currency is nearly 75% p>