I have a simple problem, but the solution seems more complex than necessary.
I can monitor the following energy consumption:
- Total consumption (grid and solar)
- Heat pump (grid and solar)
- Sun (total generation)
- Sun ( self-consumption)
A solar log + two meters are used for this purpose.
I have created two utility meters so that I can see the share of the heat pump at a glance:
- Heat pump
- House (calculated by total consumption minus heat pump)
The problem is that HA expects the grid consumption WITHOUT the solar component. Now I thought: No problem, I’ll just deduct the self-consumption proportionally from the two consumers. So dynamically e.g.
- Heat pump grid: (heat pump grid and sun) - (60% self-consumption sun)
- House grid: (house grid and sun) - (40% self-consumption sun)
template:
- sensor:
- name: "efh_verbrauch"
unique_id: "efh_verbrauch"
unit_of_measurement: kWh
state_class: "total_increasing"
device_class: "energy"
state: >
{% set total = (states('sensor.energy_consumption_daily_jp') | float(0)) %}
{% set grid = total - (states('sensor.energy_self_consumption_daily_jp') | float(0)) %}
{% set efh = total - (states('sensor.energy_consumption_heatpump_daily_jp') | float(0)) %}
{{ grid * efh / total }}
- name: "wp_verbrauch"
unique_id: "wp_verbrauch"
unit_of_measurement: kWh
state_class: "total_increasing"
device_class: "energy"
state: >
{% set total = (states('sensor.energy_consumption_daily_jp') | float(0)) %}
{% set grid = total - (states('sensor.energy_self_consumption_daily_jp') | float(0)) %}
{% set wp = (states('sensor.energy_consumption_heatpump_daily_jp') | float(0)) %}
{{ grid * wp / total }}
Problem:
Deducting self-consumption means that the consumption of the two appliances can also fall (see screenshot). This is because I deduct the self-consumption proportionally based on the current daily total consumption. So the total is theoretically still correct, but as the utility-meter is total_increasing the calculation is wrong.
Actually, I would only have to split the last increment of self-consumption - but I fail to do this.
