»Don't understand why.«
Because you cannot turn a large datacenter with thousands of aggregates, power supplies and so on off and on like a toaster.
Datacenters literally have UPS power supplies to let them gracefully shutdown and start up.
A 4 hour grid battery and a weather forecast would easily let a training run follow energy availability.
Datacenters literally have UPS power supplies to let them gracefully shutdown and start up.
A 4 hour grid battery and a weather forecast would easily let a training run follow energy availability.