According to some each Bitcoin transaction currently requires 212kWh (over a week’s worth of power for the average US home). Arguably, that amount is currently increasing by 0.5% per day. Thus, the BTC network currently consumes more power than 1.7 million US homes, or all of Syria.
It would be interesting to compare this to the energy consumption of the IOTA network, if somebody smart could figure this out. Given that due to manipulation the price of oil is artificially low, this could have dramatic ‘upward’ implications for the price of IOTA relatative to bitcoin and other alt coins once the oil’s price breaks free of its shackles and given that oil supplies are being progressively worked out, (vide Steve St Angelo’s youtube videos) :-
ref https://www.youtube.com/watch?v=_sz02jrkSyw in particular.