homeassistant-config/lovelace/overview/energy.yaml

#- type: 'custom:button-card'
#  template: card_title
#  name: Energy


- type: custom:apexcharts-card
  graph_span: 12h
  header:
    show: false
  series:
    - entity: sensor.desk_current_consumption
      name: Consumption
      curve: smooth
      type: line
      group_by:
        duration: 10min
        func: avg


- type: "horizontal-stack"
  cards:
    - type: 'custom:button-card'
      template: card_generic
      entity: sensor.desk_today_s_consumption
      variables:
        ulm_card_generic_name: Today
        ulm_card_generic_icon: "mdi:home-lightning-bolt"

    - type: 'custom:button-card'
      template: card_generic
      entity: sensor.desk_total_consumption
      variables:
        ulm_card_generic_name: Total
        ulm_card_generic_icon: "mdi:home-lightning-bolt"