New template Sensors for Energy start new day with negative value

Configuration
1

I have several template sensor with this configuration

template:
  - sensor:
    - name: "Laptop"
      unique_id: "laptop_daily_energy"
      unit_of_measurement: "kWh"
      state_class: measurement
      device_class: energy
      state: '{{ states("sensor.laptop_total_daily_energy") | float }}'
      attributes:
        last_reset: '1970-01-01T00:00:00+00:00'

They are visible on energy dashboard and reset every day. But every new day they start with negative values. If I check the sensor itself it shows it goes every day at midnight to 0. But it get shown with negative value.

Screenshot 2021-08-17 at 08.56.17
Screenshot 2021-08-17 at 08.56.172956×824 133 KB

Screenshot 2021-08-17 at 08.56.33
Screenshot 2021-08-17 at 08.56.33854×752 37.8 KB

Any idea why this happens? Why are they not starting also on the dashboard with 0?

2

The energy dashboard updates once an hour. It then subtracts the value from the current hour from the value of the previous hour. So at midnight it will be 0 - value from 11 PM, which results in a negative value. You need to feed a total energy consumption sensor to the enrrgy dashboard to get correct results.