Hello
I recently bought a power generator (Fossibot F2400) in order to be able to keep power in case of grid shortage.
I made all the wiring in order to power my house from the F2400 and it works perfectly.
I checked the accuracy of the power meter on the F2400 display by using a Shelly Plus Plug S between the F2400 output and my house (my Enphase envoy clamp also captured the data, as on the same line).
See the enclosed capture :
* purple = Envoy clamp
* light blue = Shelly Plus Plug S
* dark blue = Shelly EM
As you can see there is consistency between Shelly Plus Plug S & Envoy clamp (and both are coherent with my F2400 display), however Shelly EM is FAR from reality (clamp is at the same location as the Envoy clamp) - for example 130w actually measured 85w by Shelly EM !
Any clue of what's wrong and how/if this can be corrected ?
Note: no issue on photovoltaic production clamp. Envoy = Shelly EM.
Thanks
Matthieu