I have a Huawei PV installation for some years. Everything worked fine but since some time I see sometimes (read mostly) very strange reading in the Energy Dashboard.
Sometimes I have a normal Solar Production bargraph:
For sure, the PV installation is working normally, I have a Dashboard card which gives me the actural solar production and this behaves normally.
I’ve setup my Energy dashboard as follow:
I have a sensor called sensor.inverter_input_power from the Huawei integration that gives me the actual solar production.
Into sensor.yaml I create a sensor “sensor.opbrengt_zonnepanelen”:
- platform: integration
source: sensor.inverter_input_power
name: opbrengst zonnepanelen
unit_prefix: k
unit_time: h
round: 2
Finally into templates.yaml I create the sensor for the Energy dashboard:
- sensor:
- name: totale productie van de zonnepanelen
unique_id: total_solar_production
unit_of_measurement: "kWh"
icon: mdi:solar-power
state: "{{ states ('sensor.opbrengst_zonnepanelen') | float(0) }}"
device_class: energy
state_class: total_increasing
The actual solar production is correct in HA but for some reason mostly the Energy Dashboard information is totally wrong.
This is bad. If your sensor opbrengst_zonnepanele becomes unavailable the template sensor will report 0 instead of unavailable. When that happens the entire total is added to the energy dashboard. All you need is an availability template to prevent this happening:
- sensor:
- name: totale productie van de zonnepanelen
unique_id: total_solar_production
unit_of_measurement: "kWh"
icon: mdi:solar-power
state: "{{ states ('sensor.opbrengst_zonnepanelen') | float(0) }}"
device_class: energy
state_class: total_increasing
availability: "{{ states ('sensor.opbrengst_zonnepanelen') | is_number }}"
total → 0 → toal : add the entire total to the energy dashboard
total → unavailable → total : carry on counting from where it left off.
Also why are you duplicating the Riemann sum with a template sensor?
Thanks for your prompt reply.
I’ve copy/paste your solution and will see how it behaves.
I thought all steps were required:
1/ The Huawei integration gives the actual production in Watt
2/ The Riemann sum (into sensor.yaml) ‘converts’ it to kW
3/ The template finally count the Riemann sum and ‘converts’ the total solar production in kWh
It does require the power sensor you are feeding it to have the correct state_class (power) and device class (measurement). Then it will have the correct state class (total_lincreasing) and device class (energy).
