Keeping track on power usage of a device

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1

I’ve got a Shelly device that has an total power consumption sensor.
It measures the power consumption from the time it was plugged in untill now.
How can I keep track on how much it has been using every day? So I want to record the usage in days (monday, tuesday, wednesday,…) and weeks.
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I can help you with part of this… You can use a History Stats sensor to get the total time per day (see below that I use for my thermostat). That will give you the value for the day. Unfortunately, I don’t know how to go about displaying a week’s worth of those values. Someone smarter than me will have to help out.

# History Stats for Furnace
  - platform: history_stats
    name: FurnaceOnToday
    entity_id: sensor.downstairs_thermostat_hvac_state
    state: 'heat'
    type: time
    start: '{{ now().replace(hour=0).replace(minute=0).replace(second=0) }}'
    end: '{{ now() }}'
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