SMETS 1 – Most of these communicate with your supplier through the 3G mobile network. Unfortunately, a number of different systems, not linked together, are used to manage these meters and so if you change suppliers it is likely that your new supplier will not be able to operate your Smart Meter and it will become a ‘dumb’ meter for operational purposes. There is a programme of work being carried out to link and integrate these meters – this will take place over the next 12 months and hopefully make your Smets 1 Smart meter smart again.
SMETS 2 – This specification is more advanced. A purpose-built communication network is used with these meters and all suppliers will use it this – making switching easier and keeping your smart meter smart.