And yet has one of the highest wholesale rates...
> Hetzner prices it at...
Hertzner are reselling. They make a profit on energy resale. Their rate also includes a substantial buffer on the actual rate to account for volatility. Their rate is most likely less than half of what they are passing on for colo.
For reference, last year German industrial energy prices were around 10c/kWh INCLUDING taxes and network fees - and the government are looking to subsidize that further to target 5c/kWh: https://www.gleisslutz.com/en/know-how/germany-cuts-costs-el...