Configure grid consumption: entity not listed: I have EFERGY and PRISM entities. How to?

Configuration
1

Hi, I have two energy consumption meters: from EFERGY and from PRISM (Prism Cartender an Italian Wallbox producer, which works very well).

For both I have Voltage Ampere, Power.

How to make them work inside the new Energy system?

Thanks

2

Convert power to energy using the integration integration. Be sure to use the left method.

3

Hi what do you mean with left method?

The Efergy I already have this


  - platform: integration
    source: sensor.efergy_802171
    name: total_energy_spent
    unit_prefix: k
    round: 2

but the sensor is not between the one I can use

4

Ok now I see left method. Like this??


  #####  da potenza instantanea a energia
  - platform: integration
    source: sensor.efergy_802171
    name: total_energy_spent
    unit_prefix: k
    round: 2
    method: left
5

I used this method but the two entity do not appear in the dropdown menu

6

Ok so perhaps the platform INTEGRATION has no possibility to have a state_class=measurement ???

Ok I tried other MQTT sensor


  - platform: mqtt
    name: "Prism energia totale"
    state_topic: "prism/1/wh_total"
    unit_of_measurement: 'Wh'
    state_class: "measurement"

but also this sensor.prism_energia_totale does not appear in list dropdown

Any hint?