not much going on here in the community…
ChatGPT recommends the following solution:
The sensors provided by the myVaillant integration appear to be cumulative energy meters (total consumption), but they likely update only infrequently – maybe once or twice a day. That’s why the graph appears as a flat line.
To work around this and use them effectively in the Energy Dashboard, follow these steps:
- Ensure the sensor has the correct attributes :Use customize.yaml or the UI to set:
homeassistant:
customize:
sensor.vaillant_arotherm_plus_consumed_electrical_energy_heating:
device_class: energy
state_class: total_increasing
unit_of_measurement: "kWh"
- Do this for each relevant sensor.
- Restart Home Assistant, then go to Settings > Energy > Electricity Grid and add your Vaillant sensors as consumption sources.
- Optional: Create utility_meter sensors If you want to track daily/weekly/monthly usage:
utility_meter:
vaillant_wp_heating_daily:
source: sensor.vaillant_arotherm_plus_consumed_electrical_energy_heating
cycle: daily
This setup allows you to visualize meaningful usage trends, even if the original sensors update slowly.
Let me know if anyone has found a way to increase the update frequency!