Build Template nordpool as sensor

Configuration
1

I have been playing with some templating for making a sensor who tells me what time the electricity cost is lowest of the day.

in the developer I can get this code to work but not sure about the syntax for putting this in a sensor.

{% set l=state_attr('sensor.nordpool_kwh_dk1_dkk_3_10_025', 'raw_today')|sort(attribute='value') %}
cheapest kl. {{l[0].start.hour}}-{{l[0].end.hour}}

I get this result

cheapest
kl. 1-2

this is working but can not get it working in a template sensor can someone point me the right syntax for this to work ?

2

i solved it my self but it is the lack of documentation.

 - platform: template
    sensors:
      billigsteelpris:
        friendly_name: Billigste El Pris idag
        unit_of_measurement: "KL."
        value_template: >
          {% set l=state_attr('sensor.nordpool_kwh_dk1_dkk_3_10_025', 'raw_today')|sort(attribute='value') %}
          {{l[0].start.hour}}-{{l[0].end.hour}}
3

This is interesting since I am trying to do something similar, but I am trying to get the cheapest price, not the time windows.
How would I need to write this in order to get the Template to supply the “lowest today” price as Output?