(ITWire) Bitcoin mining around the world consumes 29.05TWh (terawatt hours) of electricity annually as of 20 November, according to a website that claims to provide in-depth analysis, opinions and discussions with regard to bitcoin and other cryptocurrencies.
Digiconomist listed the energy consumption of many countries to contrast this against; for example, Australia's annual consumption is 224 TWh, which makes the bitcoin energy use 12.97% of the country's consumption.
Another website, Power Compare, claimed that given the rate at which the growth of the cryptocurrency is occurring, bitcoin mining would consume all the world’s electricity by February 2020 (21,776 TWh).