Utility meter wrong data?

[dragg]

I’m trying to integrate my solar system into home assistant with the energy dashboard but it doesn’t list the inverter energy sensor in the drop down menu so i created an utility meter with this config:

daily_energy_generation:
    source: sensor.inverter_energy
    cycle: daily
    name: Daily energy generation

this entity is listed in the solar production tab of the energy dashboard but ,as you can see from the graph below, the utility meter data deviates from the sensor its based on

What am i doing wrong?
Is there a way to add the original energy sensor from the inverter directly without passing trough the utility meter?

Thanks for the help

[ondras12345 (Ondra)]

@dragg

Is there a way to add the original energy sensor from the inverter directly without passing trough the utility meter?

The sensor needs to have state_class: total_increasing. If the integration that you use to create the sensor does not allow you to set state_class, see:

Benefit from long term statistics for any sensor

Recent home-assistant versions (2021.9) brought the ability to benefit from long-term statistics. However, it only works for sensors that have a state_class of measurement, total or total_increasing. Some regular sensors (command line sensors for instance) don’t configure state_class by default and don’t allow you to do it. There are two solutions. Solution1: use customize.yaml This works for command line sensors (at least). In customize.yaml, you can specify a sensor to have a state_class…

As for the deviation, that is very strange and definitely shouldn’t happen. You might want to play with this further and potentially raise an issue on Github.