Comparing sensor value to attribute value to set sensor as true (On) or not true (Off)

Configuration
1

Hiya,

I’m trying to get my home battery to charge when the price is lowest in 24h and to discharge when price is highest in 24h.

I therefore need to compare the value from sensor “sensor.huis_electricity_price” to the attribute of the same sensor “Max price”.

How would I do this in the GUI? I tried, as a first step, a template sensor which unfortunately does not output a value. I then wanted to compare the huis_electricity_price sensor value to the value of this newly created sensor to create a true or false sensor so I can trigger an automation.

{{ state_attr(‘huis_electricity_price’, ‘Max_price’) | float }}

IMG_2488
IMG_24881179×2556 249 KB

2

Double check in the States tool for the actual attribute ID… it’s likely supposed to be max_price, the More Info menu shows a “pretty” version.

Also, the entity ID in the template is incomplete. It is missing it’s domain, it should be sensor.huis_electricity_price