Indeed, I read "macbook". Still, going from 30W average over 40 hours a week to 60W continuous[1] doesn't change the calculus that much, and if anything a 3Y amortization is probably too short for a workstation. Really my point was that this was a bit too far down the hyperbole hole. There are reasons to like new efficient hardware, but "electricity bills" aren't one of them.

[1] Measured average consumption of my 64-core Zen 2 box, which is surely going to be more than that Mac.

I googled “intel mac pro electricity usage” and this was the top hit: https://support.apple.com/en-us/HT201796

The first (and highest) entry at 302W at idle would consume ~50% our household’s monthly usage. It’s at least the right order of magnitude.