How to interpret EM data

    Hi, I have been using an EM for several months now, monitoring the power cable going to a robot mower charger / base station. From the myShelly screenshot below, what do the various values mean?

    The -65 W will be the current draw (the mower is charging), and that makes sense.

    The Returned - is presumably the cumulative number of Watts that has been measured since install?

    If so, then the Consumed is presumably zero because no back feeding of power ever occurs?

    Screenshot 2022-10-06 at 11.31.18.png


    I also bring the data in to Home Assistant, and that gives the data below. But I am not sure what is meant by Energy and Energy Returned. Or why the Power is different from the -65 W in the first screen shot.

    Any help in explaining the data would be much appreciated.

    Screenshot 2022-10-06 at 11.30.38.png

    This is a negative value. Turn the clamp the other way around. Consumed should be consumption in the selected time. And Returned would be infeed, that's where the 0 should be.

    LG Michael

    Einsteigertipps / Tips for beginners

    Meine Shellys:

    In Betrieb:

    Zur Zeit über 150 Shellys, in der Regel alle Cloudverbunden

    Testboard mit fast jedem Shellytyp auf dem Markt.

    Fast 5 Jahre kein übergeordnete System. Nur mit App und WebUI mit Cloudverbindung. Sprachsteuerung mit Alexa:)

    Seit Anfang 2024 ist HomeAssistant mit am Start. Was Shelly Cloud nicht kann, bzw. Lokal gesteuert werden soll, übernimmt da übergeordnete System.