> Telekom needs the equivalent of 91 watts for a gigabyte of data transmission.

It's probably a gigabyte per time unit for a watt, or a joule/watt-hour for a gigabyte. Otherwise this doesn't make mathematical sense. And 91W per Gb/s (or even GB/s) is a joke. 91Wh for a gigabyte (let alone gigabit) of data is ridiculous.

Also don't trust anything Telekom says, they're cunts that double dip on both peering and subscriber traffic and charge out of the ass for both (10x on the ISP side compared to competitors), coming up with bullshit excuses like 'oh streaming services are sooo expensive for us' (of course theyare if refuse to let CDNs plop in edge cache nodes in your infra in a settlement-free agreement like everyone else does). They're commonly understood to be the reason why Internet access in Germany is so shitty and expensive compares to neighbouring countries.