Analysis: mining bitcoin uses 91 TW/h of electricity annually, ~0.5% of all electricity consumed globally or 7x Google's total usage, and grew 10x in five years (New York Times)

New York Times:
Analysis: mining bitcoin uses 91 TW/h of electricity annually, ~0.5% of all electricity consumed globally or 7x Google's total usage, and grew 10x in five years  —  In 2009, you could mine one Bitcoin using a setup like this in your living room.  —  ↓  —  ↓