Currently, bitcoin network consumes 26 TWh a year or 250 kWh per single transaction and is growing at a rate of over 1% daily (according to this website
https://digiconomist.net/bitcoin-energy-consumption.)
250 kwh (single transaction!) is now roughly the same to to what an average home/household uses in a month.
Is this really sustainable?
If bitcoin should grow even more, how much power will be used just to run it?
Is a banking transaction will need much the same energy other than bankers branches needed. I dont know the answer but for sure it is more than a cryptocurrency production does. Then if it is not comparable with that data then this 250kwh is enough for me especially that most country are using nuclear energy that is more efficient and cheap than a coal plant that is dangerous environmentally.