around here, the more power you use, the more you pay per kwh, if you are a residential customer, while businesses have different rules. As far as I can tell, it's all largely disconnected from the cost of creating the power, and if you are on the lowest residential tier, it's /very/ cheap.

Anyhow, if we roughly estimate the server to use the CPU TDP of power (now, CPUs don't normally use the full TDP... that's the design maximum. Like sears horsepower, if the cpu itself hits that number, smoke is coming out of the thing. but the rest of the server uses power, too- the chipset, the ram, the network, the disk, etc... so the TDP often is fairly close to what the whole server draws.)

that puts us at 94KwH for the server. Multiply that by three to account for cooling, (in most data centers, you are looking at two watts plus in cooling for every one watt used by the servers. This depends on how efficient the data center cooling system is.) and multiply that by your power number and that'd be around 58 euros a month. 19 euros if the place used zero power for cooling (but that's just unrealistic for something you can't turn off on hot days)

I would say there is something fishy here, but I've seen hetzner talked about here for a while, and people seem satisfied... so maybe I'm just missing something?