Hi everyone,
I’m facing an issue with my SAJ inverter setup in Home Assistant, which is connected over the local network. While the setup works fine most of the time, there’s a recurring glitch where Home Assistant briefly records 0 kWh for produced energy when the inverter starts producing energy in the morning. This happens approximately every 10–14 days.
The bigger issue is that after this brief 0 kWh reading, the inverter jumps back to the correct value. However, Home Assistant interprets this sudden difference as the day’s production. Since we don’t export energy during that time, HA assumes we’ve consumed all the energy, which skews the consumption data.
I’ve tried to address this by filtering out the erroneous values using a template sensor, but it hasn’t resolved the problem.
- sensor:
- name: "SAJ Total Yield filtered"
unique_id: 2a9a148e-3b91-49fc-b471-cf3439c7a440
state: >
{% set previous_value = states('sensor.saj_total_yield_filtered') | float(0) %}
{% set current_value = states('sensor.saj_total_yield') | float(previous_value) %}
{% if current_value > previous_value %}
{{ current_value }}
{% else %}
{{ previous_value }}
{% endif %}
unit_of_measurement: "kWh"
device_class: energy
state_class: total_increasing
I’d greatly appreciate any advice or insights from the community on:
- How to prevent Home Assistant from logging this brief
0 kWhglitch. - Properly filtering or correcting these anomalies to ensure accurate energy production and consumption tracking.
Has anyone else experienced similar behavior with SAJ inverters or other setups? Any suggestions or guidance would be a huge help.
Thanks in advance!