WTP
What's the point???
I am an engineer, I know how much energy everything I use consumes. I use what I need to use. Furthermore, every electricity user is paying via their energy bill for those who have smart meters fitted. I don't want to pay for other people to have them and I have no opt out.
Even for an idiot, just turning stuff off when you don't need it will do just as well.
An interconnected meter with variable energy cost is a different matter, i.e. your washing machine washes when energy cost is lowest, etc.
Finally, I have no mobile signal in my area. A centrally connected smart meter won't work. Why can't they all use PLC???