Ironically, that 'advantage' probably doesn't exist with some/most of the new-fangled tariffs involving 'smart' meters
I found this a problem when with British Gas, I did not know if using UTC or BST as the smart meter and in home display showed different times, so I just started all at 01:00 instead of 00:00 to be sure.
Since I have found E7 is the odd one out, all the other tariffs seem to work on the time set by Government.
Well, we are after the switch off deadline, and my lights, fridge, and computer are still working. That will do me for now. I will get the meter changed in a couple of months when I am less entangled with things. I assume I am now on peak rate 24/7. Low rate should be handy since I have to keep the fan on all night to get some breeze.
It has already been said, the switch off has been canalled/delayed, we don't know now when it will happen, likely coldest day of the year, giving no time for anyone to do anything to avoid getting cold.
The problem is, there is no standard way for the teleswitch to work, with some it just changes the meter reading, with other it turns a supply on/off as well. Leaving the occupants with no heating, until some rewiring is done.
The old Wylex fuseboxes were only rated at 60 amp, which is enough for either general home use, or storage radiators, but to combine them both, could cause problems, and it is likely those with the old fuse boxes who are the most vulnerable, and also less likely to see TV adverts, or other information stuff, and will be left without heating.
I think of my mother, and she would not have had a clue what is going on, it would have been down to me or the careers to arrange any changes, I remember trying to get the house on PME, and arranging for DNO to call, I had to travel 8 miles to let them in, and they wanted someone to be there all day, to do ½ hours work.
We all consider our own situation, and tend to forget those who can't simply drop everything and come home for the electric man. If I had not been available to let him in, then it would have been down to social services, so who would set the appointment time? Would social services tell the DNO we will be there at x to x make sure you visit between those times?
I have had a frantic phone call from my son, the DNO have phones householder to say coming early they want an electrician on site, I can't make it, can you?