I dont understand why they want to do this because CHina produces the biggest quantity of bitcoin and this help the country in some way because people bring a lot more money to the economy of China. It is probably because they know they cant fully stop it or people doesnt pay any taxes for mining. I dont think they have a problem with the electricity since it is profitable and they can anytime bring more electricity if there isnt enough wich I doubt
Did you saw recent situation in South Korea? First news were that South Korea plans to ban trading with cryptos, and after few days, yesterday, some government officials said that they don't have such plans. That was the reason why price dropped to 13500 dollars and now recovering. Spinning the news is very popular, in Asia they do it a lot apparently, or do they do it or someone else? Long ago I stopped to believe in many news, I check, then double check if I wish something to find out.
This is similar, stories from China and their government are different every day, and still they are doing the same. Who knows are they trying to drop the price to buy more or they have some other agenda.