I've just logged a suspected problem with my smart meter.
The electricity meter reported usage in August three times my normal summer monthly usage. It's also double my normal winter usage. It's made worse by the fact that we have solar panels!
The spike was for the month of August only. We were away for a week and no, we didn't leave anything on.
It's hidden away, but the info is on this Which site
https://switch.which.co.uk/energy-advice/how-to-read-your-gas-meter.html
"If your measure is in cubic feet, multiply by 2.83 to convert to meters."
Which is *completely* non-intuitive, as there are approximately 36 cubic feet in a cubic meter. But it seems to be just the way the meters are set up. But it's utterly baffling for someone who has been keeping a record of their gas usage!
So if anyone is worried why their new smart gas meter is suddenly logging 3 times the usage of their old meter. Don't worry!