Utility Meter


The utility meter component provides functionality to track consumptions of various utilities (e.g., energy, gas, water, heating).

From a user perspective, utility meters operate in cycles (usually monthly) for billing purposes. This sensor will track a source sensor values, automatically resetting the meter based on the configured cycle. On reset an attribute will store the previous meter value, providing the means for comparison operations (e.g., “did I spend more or less this month?”) or billing estimation (e.g., through a sensor template that multiplies the metered value per the charged unit amount).

Some utility providers have different tariffs according to time/resource availability/etc. The utility meter enables you to define the various tariffs supported by your utility provider and accounts your consumptions in accordance. When tariffs are defined a new entity will show up indicating the current tariff. In order to change the tariff, the user must call a service, usually through an automation that can be based in time or other external source (eg. a REST sensor).

Sensors created with this component are persistent, so values are retained across restarts of home assistant. The first cycle for each sensor, will be incomplete; a sensor tracking daily usage, will start to be accurate the next day after the component was activated. A sensor tracking monthly usage, will present accurate data starting the first of the next month after being added to home assistant.

Configuration

To enable the Utility Meter Sensor in your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
utility_meter:
  energy:
    source: sensor.energy_in_kwh
    cycle: monthly

Configuration Variables

source

(string)(Required)The entity ID of the sensor providing utility readings (energy, water, gas, heating).

cycle

(string)(Required)How often to reset the counter. Valid values are hourly, daily, weekly, monthly and yearly.

offset

(integer)(Optional)Cycle reset occur at the beginning of the period (0 minutes, 0h00 hours, Monday, day 1, January). This option enables the offsetting of these beginnings. Supported formats: offset: 'HH:MM:SS', offset: 'HH:MM' and Time period dictionary (see example below).

Default value: 0

net_consumption

(boolean)(Optional)Set this to True if you would like to treat the source as a net meter. This will allow your counter to go both positive and negative.

Default value: false

tariffs

(list)(Optional)List of tariffs supported by the utility meter.

Default value: []

Time period dictionary example

offset:
  # At least one of these must be specified:
  days: 1
  hours: 0
  minutes: 0 

Services

Service utility_meter.reset

Reset the Utility Meter. All sensors tracking tariffs will be reset to 0.

Service data attribute Optional Description
entity_id no String or list of strings that point at entity_ids of utility_meters.

Service utility_meter.next_tariff

Change the current tariff to the next in the list. This service must be called by the user for the tariff switching logic to occur (e.g. using an automation)

Service data attribute Optional Description
entity_id no String or list of strings that point at entity_ids of utility_meters.

Service utility_meter.select_tariff

Change the current tariff to the given tariff. This service must be called by the user for the tariff switching logic to occur (e.g. using an automation)

Service data attribute Optional Description
entity_id no String or list of strings that point at entity_ids of utility_meters.
tariff no String that is equal to one of the defined tariffs.

Advanced Configuration

The following configuration shows an example where 2 utility_meters (daily_energy and monthly_energy) track daily and monthly energy consumptions.

Both track the same sensor (sensor.energy) which continously monitors the energy consumed.

4 different sensors will be created, 2 per utility meter and corresponding to each tariff. Sensor sensor.daily_energy_peak, sensor.daily_energy_offpeak, sensor.monthly_energy_peak and sensor.monthly_energy_offpeak will automatically be created to track the consumption in each tariff for the given cycle.

utility_meter.daily_energy and utility_meter.monthly_energy entities will track the current tariff and provide a service to change the tariff.

utility_meter:
  daily_energy:
    source: sensor.energy
    cycle: daily
    tariffs:
      - peak
      - offpeak
  monthly_energy:
    source: sensor.energy
    cycle: monthly
    tariffs:
      - peak
      - offpeak

Assuming your energy provider tariffs are time based according to:

  • peak: from 9h00 to 21h00
  • offpeak: from 21h00 to 9h00 next day

a time based automation can be used:

automation:
  trigger:
    - platform: time
      at: '09:00:00'
    - platform: time
      at: '21:00:00'
  action:
    - service: utility_meter.next_tariff
      entity_id: utility_meter.daily_energy
    - service: utility_meter.next_tariff
      entity_id: utility_meter.monthly_energy

Advanced Configuration for DSMR users

When using the DSMR component to get data from the utility meter, each tariff (peak and off-peak) has a separate sensor. Additionally, there is a separate sensor for gas consumption. The meter switches automatically between tariffs, so an automation is not necessary in this case. But, you do have to setup a few more instances of the utility_meter component.

If you want to create a daily and monthly sensor for each tariff, you have to track separate sensors:

  • sensor.power_consumption_low for off-peak power
  • sensor.power_consumption_normal for peak power
  • sensor.gas_consumption for gas consumption

So, tracking daily and monthly consumption for each sensor, will require setting up 6 entries under the utility_meter component.

utility_meter:
  daily_power_offpeak:
    source: sensor.power_consumption_low
    cycle: daily
  daily_power_peak:
    source: sensor.power_consumption_normal
    cycle: daily
  daily_gas:
    source: sensor.gas_consumption
    cycle: daily
  monthly_power_offpeak:
    source: sensor.power_consumption_low
    cycle: monthly
  monthly_power_peak:
    source: sensor.power_consumption_normal
    cycle: monthly
  monthly_gas:
    source: sensor.gas_consumption
    cycle: monthly