@danilo Sounds about right. And that number keeps rising faster than other consumers of electricity, so it will be equivalent to ever larger chunks of human activity over time. Which is fine, if people consider the utility of those datacenters to be worth it.
And by "worth it" I mean not just the price of the electricity but the externalities that come with it. One of the great things about datacenters from a multinational corporation's perspective is that you have some flexibility in where to put them. Flexibility to avoid, for example, places that do a better job of pricing in the externalities of electricity production. Fortunately, Google and Facebook (and I think Microsoft as well?) have also tried to choose places that have cheap electricity from sources like hydroelectric, but that can still displace other users into dirtier energy sources.
danilo