tenta
- platform: template
sensors:
casa_consumo_kwh:
friendly_name: Casa Consumo kwh
entity_id: sensor.casa_consumo_kwh
unit_of_measurement: "kWh"
value_template: >-
{{(states.sensor.energiageral_energy.state) | float / 1000 | round(2)}}
Se não funcionar, usa os developer tools para testar o template