Wrong decimal place from device?

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1

I have the Ledvance power plug which reports consumption and power. It is shown like this.

ledvance
ledvance400×501 12.7 KB

The issue is that the kWh value is wrong! My device pulls 490w and I turned it on at 19:00. After two hours, 21:00, it should have consumed about 1 kWh. But the sensor shows 0.11kwh. So the decimal precision is wrong here? Can I create some custom sensor that corrects it somehow or just display it the correct way in a card? Like multiply the value by 10 or similar?

2

Yes you can using the template sensor
{{ states('sensor.xxxxxx') | float(0) * 10 }}

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3

Better use the ‘Riemann sum integral sensor’ on your power sensor with the left method

afbeelding
afbeelding599×897 23.7 KB

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4

What are the benefits of this? :grinning:

5

Energy gets calculated from your power sensor.

6

Yeah I got that, but why though?

7

You can of cause multiply the faulty energy sensor by 10, but if it is faulty in the first place, how do you know the multiplied sensor is correct. Is it not better to calculate yourself ?