Huh? It's all in the infographic. 60% is the target, but "production takes time" (see content here) hence the "ultimately". I'm not hiding the current number, it's in the key statistics.
If you're interested in where the 60% comes from in the first place > it's based on the lifetime costs of a number of machines. It was on the page a while ago, but the index page itself isn't a research paper so I removed it. I'll give it a new spot soon, probably on this page (already containing the foundation of the method):
https://digiconomist.net/bitcoin-electricity-consumption
If you just want to see some real-world numbers, check out my break-down a farm recently:
https://twitter.com/digieconomist/status/898582265080446976
(Note: subtle difference between part spent on elec & part spent on ongoing costs. I take costs and then 1 kWh for every 5 cents spent, so including overhead.)
