Other things that the supplier will be responsible for are teaching people how to use their smart meter, providing a copy of the instructions to the customer, and explaining how to use energy efficiently.
They should also provide a number to call if anything goes wrong.
Pre-payment smart meters are also available, however, Citizens Advice says that prepayment is “usually a more expensive way of paying for energy”.
The consumer group reminds Britons that smart meters are not compulsory and if a supplier says otherwise, them a person could contact the Citizens Advice helpline.