I know little about?? Sorry to burst your bubble but I worked for Landis+gyr for over 12 years who made the SMTS 1 / 2 smart meters for all big energy firms as well as the small ones popping up. I worked close to people in R&D so I'm well aware what these meters can do.
You could be shut off to reserve electricity if we don't have enough electricity on the grid, the meters have a valve built in to them that can be remotely shut off, it could happen to vulnerable people who struggling to keep up with their bills. All these electric vehicles charging up and down the country at similar times of the day, all the investors in these nuclear power plants, greener energy and infrastructure for charge points will want to see a ROI and by that they will introduce all sorts of shady stuff to gain more money from the consumer and could use your usage data fed back to them to introduce extra charges
I'll leave it at that and maybe some people in here should take off their rose tinted glasses and look how people in this country are being charged just to go about their business to make ends meet