Some years ago when I was with British Gas, I was offered the installation of so called 'Smart Meters' It was said that they would help the consumers lower their costs which I immediately thought was disingenuous twaddle. I could understand the benefits (to BG) in being able to read the meters remotely and it was a convenience to me.
If you wanted to know how much gas/electricity was being used you didn't have to have smart meters, but it was convenient to use the tap-in monitors. If one wanted to save money, you just had to be assiduous in which power sources you left running.
Some people got it into their heads that the power companies could cut off their supply remotely, but in reality they could do that with or without smart meters, and it could be extremely dangerous when it came to switching back on. Nevertheless I did have them installed.
My problem came when I wanted to change suppliers, the bills were lower but the new supplier could not read the BG meters, so I was back taking readings myself once a month. I found a third supplier who said they would be cheaper still. and supply a second set of meters, again subsidised by the companies/government.
Madness!
The promise of a 'universal' smart meter was promised repeatedly, but a further two years elapsed before my new supplier could actually 'read' both meters remotely. It's now settled down and I pay a regular amount monthly by direct debit with a single payment that is adjusted once a year. Oddly edging up. Surprise! surprise!
My considered opinion is that overall, no, they're not worth it, given the shameful waste of money installing two sets of meters.
We will all have to pay for them in the long run and now any rising costs will be hidden in the chaos surrounding the world currently.