Thanks for finding that. I did ask Octopus if we switched to them, would their smart meters work as I had read elsewhere, but they couldn’t guarantee that. However, as I’m on the standard tariff with Scottish Power, I might just take a chance and switch anyway as I guess the Octopus/EON standard tariffs can’t be much different. If I get a working smart meter as well, then that’s a bonus. Scottish Power have had three attempts at getting it working including an engineer who replaced everything. He didn’t seem to be aware of the Fylingdales issue when I told him though.
All Smets1 meters will eventually get upgraded so they will continue to work in smart mode when you switch suppliers.
You can run a check here for England and Wales https://smartmetercheck.citizensadvice.org.uk/
Or here for Scotland https://smartmetercheck.citizensadvice.org.uk/scotland
You will need meters MPAN number, which you can find on a bill and your postcode.