When they standardise them so you can change providers and not change smart meter, it might be worth having.
Until then, it's pointless IMO
Curious, why are you refusing the install? surely it saves you having to enter meter readings every month.
My wife has made it quite clear we will not be having a smartmeter installed. She said she would reconsider once a standardised one is installed, so that no matter who you are with it will work.
We've with Ovo and we submit monthly readings anyway. Add in that Ovo pay us something like 5% interest on anything we're in credit by, we quite like having money in our account - wonder if they would take an ISA transfer at those rates?