Long Term Statistics not showing for utility_meter

[kruste]

Setting state_class to “total_increasing” is also not working too.

As I had the problem of missing long term statistics also for other sensors which are originally missing state_class I opened a more general thread. Now I learned that customize cannot be used to enable long term statistics (at least for non-legacy sensors):

Long term statistics: sensors purged after 10 days although state_class set: attribute order a problem?

You overlooked to mention this important detail in your first post. That trick works for Template Sensors configured using legacy format which don’t natively support the state_class option. It’s not known to work for entities created by other integrations. The state_class attribute you added via customize.yaml is being treated like any other attribute (i.e. not being used for long-term statistics). Contact the author to add a proper state_class option to the entity. FWIW, the same thing ha…

So there seems to be no way to enable the long term statistic for my Utility Meter sensor.

If nobody else has any other idea, I will de-install Utility Meter and use my own logic with template triggered sensors again. Not as elegant but working but I can use LTS if I want to.