Today, every bitcoin transaction requires the same amount of energy used to power nine homes in the United States for a day. And miners have to constantly install more faster computers. Already, the computing power of the bitcoin network is almost 100,000 times larger than the world’s fastest 500 supercomputers combined. The total energy use of this hardware network is enormous: about 70 terawatt hours a year, about double as Denmark. It can be said that every Bitcoin transaction consumes about 200kWh, more than 150 individual countries in the world consume less energy each year. And this thirsty network is currently increasing its energy consumption every day by around 450 gigawatt-hours, roughly the same amount of electricity that the entire country of Haiti uses in a year.
The mining consumes a lot because it gives a lot of security, there are less expensive systems to transfer or register properties on the net, but none guarantees the trustless like the blockchian, in particular that of Bitcoin, this is why despite being a difficult profession that of the miner, this is a industrial activity destined to become a new Fintech sector in which the cost of energy is a decisive parameter.