Possible to add individual devices on the grid side?

[EspeeFunsail]

Thank you for this awesome project. Really enjoying it.

I have a specific use case where my water heater is not connected via my solar inverter, but is connected before it, on the main grid.

I would like to create something like grid_individual which would just connect on the grid side, as currently happens on the home side. This will enable me to see what the water heater power consumption and my home's load separately.

[thomas-svrts]

Would also help me with my energy sharing feature request.

#88