Energy usage of the Heat Pump with Energy Dashboard

1. ETS Configuration of Hager Energy Meter

The transmitter can output power and energy for high tariff and low tariff as well as voltage and current for the 3 phases. The electricity tariff is not made via communication object 105, but via Home Assistant so that the tariff and the energy cost, or all time dependencies, are configured and displayed in Home Assistant.

In this example the following communication objects are used:

• 27: Power (calculate COP of the heat pump)
• 61/69/77: Voltage X,Y,Z (As information)
• 81: Total energy T1 + T2 (energy measurement)

1. Integration of group address “Total Energy” in Home Assistant

configuration.yaml

sensor:
    # Group address of Hager TE331: Energy Total Heat Pump data type 13.010 
    - name: "UG WP Energy Electric Total"
      state_address: "0/3/11"
      type: active_energy

2. Create utility meter to measure daily consumption of heat pump

Records daily energy consumption in high (peak) and low (offpeak) tariff. Switching between peak and offpeak tariff is done by automation (step 3). The source of the utility meter is the entity that is created from the energy meter (step 1).

configuration.yaml

utility_meter:
  # Daily consumption of the heat pump
  energy_consumption_wp:
    source: sensor.ug_wp_energy_electric_total
    name: Heat Pump Energy Consumption
    cycle: daily
    delta_values: false
    tariffs:
      - peak
      - offpeak

If you prefere to work with the grafical interface, navigate to Settings -> Helpers and click on CREATE HELPER.

You can create exactly the same utility_meter entity in the grafical interface.

3. Automation to change between peak and offpeak

There are multiple entities needed to create the energy dashboard. The timing is done only within this automation. The automation switches the tariff of the utility meter created in step 2.

• Triggers are “Home Assistant Start” or “Time = 7:00” or “Time = 19:00”.
• Between 7:00 and 19:00 the peak tariff should be set, otherwise the offpeak tariff.
• The tariff is set in the utility meter “energy_consumption_wp”.

configuration.yaml

alias: "timing_tariff_electricity "
description: ""
trigger:
  - platform: time
    at: "07:00:00"
  - platform: time
    at: "19:00:00"
  - platform: homeassistant
    event: start
condition: []
action:
  - if:
      - condition: time
        before: "19:00:00"
        after: "07:00:00"
    then:
      - service: select.select_option
        data:
          option: peak
        target:
          entity_id: select.energy_consumption_wp
    else:
      - service: select.select_option
        data:
          option: offpeak
        target:
          entity_id: select.energy_consumption_wp
mode: single

If you prefere to work with the grafical interface, navigate to Settings -> Automation and Scenes and click on CREATE AUTOMATION

You can create exactly the same automation in the grafical interface.

4. Create an input number to enter energy price for peak and offpeak

The price should be changeable via a dashboard because it can change.

configuration.yaml

input_number:
  # is used to calculate the peak cost in the energy dashboard
  energy_price_el_peak:
    name: Electricity Price Peak
    icon: mdi:speedometer
    unit_of_measurement: "EUR/kWh"
    min: 0
    max: 1
    step: 0.0001
    mode: box
  # is used for calculate the offpeak cost in the energy dashboard
  energy_price_el_offpeak:
    name: Electricity Price Offpeak
    icon: mdi:speedometer-slow
    unit_of_measurement: "EUR/kWh"
    min: 0
    max: 1
    step: 0.0001
    mode: box

If you prefere to work with the grafical interface, navigate to Settings -> Helpers and click on CREATE HELPER.

Create card electricity tariffs

The electricity prices should be changeable via a dashboard. The binary_sensor electricity_tariff_high is created so that the state from the utility meter becomes available in the card as a indication element.

configuration.yaml

template:
  - binary_sensor:
    # Indicates the current electricity tariff as Binary Sensor
      - name: electricity_tariff_high
        unique_id: electricity_tariff_high_id
        icon: mdi:cash
        state: >
          {% if is_state('select.energy_consumption_wp', 'peak') %}
            {{ true }}
          {% elif is_state('select.energy_consumption_wp', 'offpeak') %}
            {{ false }}
          {% endif %}

Configuration of Entity Card:

5. Integration into Energy Dashboard

Now you have to add the correct entities into the Energy Dashboard

• The utility meter from step 2 energy.consumption_wp contains a sensor.energy_consumption_wp_peak and a sensor.energy_consumption_wp_offpeak. You have to enter each of them in the Energy Dashboard. The Energy Dashboard shows the Name of the utility meter Heat Pump Energy Consumption.
• Open the edit dialog of each sensor to select “Use an entity with a current price” and select the according price. Offpeak Price for Offpeak Consumption and Peak Price for Peak Consumption.

Here is an additional benefit, which comes free with the Hager TE331. The Hager TE331 provides the voltage of each phase. These are displayed in Home Assistant via a gauge card.

configuration.yaml:

# From Energy Meter Hager TE331
# Voltage Phase 1 data type 14.027
- name: "Voltage Phase 1"
  state_address: "0/3/1"
  type: electric_potential
# Voltage Phase 2 data type 14.027
- name: "Voltage Phase 2"
  state_address: "0/3/2"
  type: electric_potential
# Voltage Phase 3 data type 14.027
- name: "Voltage Phase 3"
  state_address: "0/3/3"
  type: electric_potential

Configuration of Entity Card: