Hot tub template sensor problem

Configuration
1

Hi @tom_l - I didn’t want to start a new topic because my query is very similar. I’m trying to setup a sensor for a cost calculation for my hot tub.
This is in my configuration.yaml (just below the default stuff) and nothing else in the file. But after a fully HA restart, the sensor doesn’t appear. I’m using docker for my instance, just because I have a NAS that’s always on, so it was easier.

Anything standout why I can’t find the sensor? Thanks.

template:
  - sensor:
      - friendly_name: 'Hot Tub Cost'
        unit_of_measurement: '£'
        value_template: '{{ "{:.2f}".format((states (0.17) | float) * ((states
  ("sensor.hms_tubs_pump_1_energy_daily") | float ) + (states
  ("sensor.hms_tubs_pump_2_energy_daily") | float ) + (states
  ("sensor.hms_tubs_heater_energy_daily") | float ))) | round(2) }}'
2

Yes. You have a mishmash of old and new formats. You also abused the single line template format. There will be errors in your logs about both of these.

Try this:

template:
  - sensor:
      - name: 'Hot Tub Cost'
        unit_of_measurement: '£'
        state: >
          {{ "{:.2f}".format((states (0.17) | float) * 
          ((states("sensor.hms_tubs_pump_1_energy_daily") | float ) + 
          (states("sensor.hms_tubs_pump_2_energy_daily") | float ) + 
          (states("sensor.hms_tubs_heater_energy_daily") | float ))) | round(2) }}
1 Like
3

Ahhh, yes, that makes sense. I’m cobbling together stuff from all over the place to try and get it working. Your changes have made it appear now. Much appreciated! Have a great weekend

1 Like
4

Hey, @tom_l (and anyone else reading this) - I’m not getting data through from the sensor. If I remove (states (0.17) | float) * then I get a value through. What’s the correct way to enter an integer hardcoded? The 0.17 is my cost of electricity per kw.

If I try to add a value in I get ‘unknown’. I’ve tried creating ‘helper’ with a number type - the value is correct but if I try adding that to the sensor (states ("input_number.sensort_energy_tarrif") | float) * it goes back to ‘unknown’

5

I didn’t actually look that closely at your template. It is definitely not correct. Try this:

template:
  - sensor:
      - name: 'Hot Tub Cost'
        unit_of_measurement: '£'
        state: >
          {{ "{:.2f}".format(
            0.17 * ( states("sensor.hms_tubs_pump_1_energy_daily") | float(0) +                 
            states("sensor.hms_tubs_pump_2_energy_daily") | float(0) + 
            states("sensor.hms_tubs_heater_energy_daily") | float(0) ))
          }}
1 Like
6

That’s the ticket! I was just about to ask if there’s a playground to try these things…just dawned on me as I was typing that out - dev tools -> template lets you check these things, I’ll go to town on that a lot more going forward. You’ve a been a true legend helping me with this. Thanks very much.

1 Like