I have my thinkcentre that I use as main PC on at all times, and it’s basically free in the autumn/winter/early spring as its energy consumption serves as a heater. And orherwise I use it. So say 100 nights uh to be generous 1000h a year for what, 30watt so 30kwh at under 0.2€ equals say 6€.
I’m all alone on the server though so it costs 6€ a year per user I guess 😁
Interesting to see those kind of things happen, hopefully it’s only a first one.