The answer is Bitcoin and it's not even close even when compared to all internet capable devices in the world. Here is a napkin math- Bitcoin mining consumes

The answer is Bitcoin and it's not even close even when compared to all internet capable devices in the world. Here is a napkin math- Bitcoin mining consumes around 91 TWH of electricity each year. [1] There are 20B internet capable devices out there. Let's assume a conservative estimate of 2 KWh/day (taken from my computer which is on almost 24/7) for a device. 2x20x365 = 14TWH Bitcoin consumes 6.5x more electricity than all the internet capable devices in the world. 1. https://www.nytimes.com/interactive/2021/09/03/climate/bitcoin-carbon-footprint-electricity.html https://www.nytimes.com/interactive/2021/09/03/climate/bitco...