100%. AFAIK, it’s the same for most (if not all) countries. I actually mentioned it here #1203129.

So end of the day the infographic author chose the simplest (and least accurate) approach by taking lowest available tariffs in each country and adjusting those numbers assuming one uses energy at those prices to mine 1 bitcoin (maybe taking probability into consideration).

We need to conduct proper research, take actual cost of electricity for the job (account for higher consumption) and consider other variables. That would be truly informative. Now the question is who’s gonna do it? 😅