Energy cost estimate using utility meter - numbers don't add up

Configuration
,
1

Hi all,

I’m trying to create a utility meter for daily & monthly energy usage and costs, for that I added configuration for the following entities:

input_number:
  kwh_cost_gross:
    name: kWh Cost Gross
    initial: 0.64
    min: 0.5
    max: 1
    step: 0.01
    unit_of_measurement: "ILS/kWh"

template:
  - sensor:
      - name: "Clinic energy consumption"
        unit_of_measurement: "kWh"
        state: >
          {{ states('sensor.shellypmminig3_dcda0cb4cd38_energy') | float(0) +
             states('sensor.shellypmminig3_dcda0cb5af10_energy') | float(0) +
             states('sensor.shellyplus2pm_c4d8d557f404_switch_0_energy') | float(0) +
             states('sensor.shellyplus2pm_c4d8d557f404_switch_1_energy') | float(0)
          }}

      - name: "Clinic Monthly Energy Cost"
        unit_of_measurement: "ILS"
        state: >
          {{ (states('sensor.clinic_monthly_energy') | float(0) * states('input_number.kwh_cost_gross') | float) | round(2) }}

utility_meter:
  clinic_daily_energy:
    source: sensor.clinic_energy_consumption
    cycle: daily
  clinic_monthly_energy:
    source: sensor.clinic_energy_consumption
    cycle: monthly

The thing with this configuration is that the monthly energy sensor keeps going up and reaches numbers that don’t make sense. Would appreciate any lead on this.

2

Found one of the issues to be the device class for the template sensor and updated as below:

template:
  - sensor:
      - name: "Clinic energy consumption"
        device_class: energy
        state_class: total_increasing
        unit_of_measurement: "kWh"
        state: >
          {{ states('sensor.shellypmminig3_dcda0cb4cd38_energy') | float(0) +
             states('sensor.shellypmminig3_dcda0cb5af10_energy') | float(0) +
             states('sensor.shellyplus2pm_c4d8d557f404_switch_0_energy') | float(0) +
             states('sensor.shellyplus2pm_c4d8d557f404_switch_1_energy') | float(0)
          }}

      - name: "Clinic Monthly Energy Cost"
        unit_of_measurement: "ILS"
        state: >
          {{ (states('sensor.clinic_monthly_energy') | float(0) * states('input_number.kwh_cost_gross') | float) | round(2) }}
3

This in fact didn’t help, would appreciate the community’s help on this

4

Don’t use default to 0 w/ float(0), just float

5

Thanks, unfortunately this didn’t help - the value of the aggregated sensor is indeed correct (it sums up the value of all other sensors correctly) but the utility meter shows unreasonably high values.

6

Try Combine the state of several sensors instead of template sensor.

And show graphs from all sensors (including utility meters).

7

Where can I find this option?

8

In UI > Settings > Devices & services > Helpers > CREATE HELPER

You can try to add Utility meters this way too.