Energy Monitor and Sensor not Shown

I’m quite new on HA and reading your posts i bought shelly for populate my energy dashboard.
I also find the way to create a sensor representive “energy produced solar” - “energy consumed” for set this into “return to grid”.

But wy sensor is not shown on the combobox. I tried integration, conversions, i really can’t understand what i’m doing wrong:

but this “remaining power” is not visible on energy dashboard.
Please show me the secret! :slight_smile: