@nprofile1q... @nprofile1q... > Datacenter companies tend to reserve more power than they use. Sometimes a lot more.
It's been many years since I built out a datacenter, but they're probably reserving for possible peak demand, not day to day use. Most servers sit around bored all day, but could suddenly spin up and draw full power. It'd be irresponsible (from a business perspective) for a DC operator to oversubscribe their power capability; during peak demand they'd have to power off some customers.
Of course this made a lot more sense when there was plenty of power for everyone.