Yeah if someone says that k8s is costing them energy they are either using it very, very incorrectly, or they just don't know what they are talking about.
Running a Kubernetes deployment requires running many additional orchestration services that bare-metal deployments (whether running on-prem or in the cloud) do not.
Running a Kubernetes deployment requires running many additional orchestration services that bare-metal deployments (whether running on-prem or in the cloud) do not.