Shelly3EM with Energy and MQTT

[tom_l]

Your template sensor is incorrect. You can not add up powers (kW) to get energy (kWh).

Find the energy sensors and add them. You also have to reduce the total by a factor of SQRT(3) as the powers are out of phase.

See this post:

Shelly 3EM + utility_meter + feeding to the grid

If it helps somebody, here’s my calculation and it will also take care of the “unavailble” problem that the thread starter had (been there to ): consumed_energy: friendly_name: "Total Consumption" device_class: energy unit_of_measurement: 'kWh' value_template: "{{ ((states('sensor.em_channel_a_energy')|float + states('sensor.em_channel_b_energy')|float + states('sensor.em_channel_c_energy')|float)/sqrt(3))|round(2) }}" ava…