If you are the one paying the electricity bills for that datacenter, then yes, it probably matters to you a lot. If you are just renting a server from aws or gc

If you are the one paying the electricity bills for that datacenter, then yes, it probably matters to you a lot. If you are just renting a server from aws or gcp, it probably matters less. Although, I assume costs born from idle inefficiency will probably be passed to the customer...