If the goal is to educate the public on the scale of power involved, a comparison with a commonly used service would help a lot IMHO.
Something like 'Bitcoin consumes 14 times the energy of Google and half (according rough estimates) that of Youtube' would make things easier to grasp before hitting the reader with country comparisons.
FWIW here is my list of 'if a service were a country':
Google Guatemala
Bitcoin Argentina
Youtube South Africa (unreliable data)
[Edit] whoops - no references
https://www.google.com/search?q=what+is+the+total+power+cons...
https://www.google.com/search?q=what+is+the+total+power+cons...
https://en.wikipedia.org/wiki/List_of_countries_by_electrici...