shapa wrote:"What you have actually used from the grid and the real cost from the electricity supplier is shown in the Net Electricity device states" - yes, exactly.
So I'm just verifying that only "Net Electricity" used to calculate my paid electricity (from a grid) use, not generic electricity device (which is summarizing solar + grid)
Yes, exactly - you are verifying correctly
The Electricity Device is showing your total house usage, the Net Electricity Device is showing how much of that has been taken from the grid and the Saved Electricity Device is showing how much you have taken from the Solar PV. So Net + Saved = Total (as in the Electricity device).
The iOS Smappee App only shows your total house usage and provides a cost for that (if you have entered the electricity rates in the App). This doesn't make much sense in terms of cost because you will actually only be charged by your electricity supplier for your net usage.