Can't get EV kWh usage in Energy Dashboard

I’m trying to use the battery part of the energy dashboard for my EV charger. The EV-charger only has a sensor that counts kWh per charging session. Every new charging session it starts at 0.

Below the EV charger sensor, above it a template sensor I created. I also created a dummy sensor.

The issue is that the dummy sensor shows up in the energy dashboard battery dropdown, the templated kWh sensor does not.

Dummy sensor:

  - sensor:
    - name: "Battery unload dummy"
      unique_id: battery_unload_dummy
      unit_of_measurement: "kWh"
      state_class: total
      state: "{{0.0|float}}"

templated sensor for kWh total usage:

    - name: "EVSE energieverbruik"
      unit_of_measurement: "kWh"
      unique_id: evse_energieverbruik
      state_class: total
      state: "{{ states('sensor.evse_energy')|float(0) }}"
      availability: "{{ states('sensor.evse_energy')|is_number }}"
      icon: mdi:ev-station

nope:

Some help would be greatly appreciated.

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