Template sensor not appearing

Configuration
2

A few things…

  • Assuming this is a direct copy from your config, you can’t have multiple definitions/iterations of sensor:
  • You need to watch your indentations which are crucial in HA. There are a few indentation issues with your code
  • Either use '{{states("sensor.sensorname")}}' or '{{states.sensor.sensorname.state}}' with a preference for the first one which will handle when your sensor has an unknown state instead of throwing an error

Try this:

sensor:
  # Weather prediction
  - platform: yr
  - platform: solaredge
    api_key: <snip>
    site_id: <snip>
    monitored_conditions:
        - current_power
        - energy_today
        - energy_this_month
        - energy_this_year
        - lifetime_energy
  - platform: template
    sensors:
      solaredge_energy_this_year_template:
            friendly_name: 'SolarEdge This Year'
            unit_of_measurement: 'kWh'
            value_template: "{{(states('sensor.solaredge_energy_this_year') | float / 1000) | round(2)}}"

Check your config as there may still be indentation errors (typing from phone)