What about the rigmarole of trying to install them in rental properties where the tennants might not have permission to upgrade even if they wanted to?
My fiancée keeps getting EDF letters (as its in her name, water in mine) about switching to a smart meter but i'm not sure we're even able to without the arse-ache of discussing with the agency who would then have to discuss with the landlord. I'm sure we're not the only people in this situation (were we ever actually considering a smart meter) - there's plenty of renters out there, especially now. How do they cater for them?