Do I need a broadband connection or mobile signal at my premises to use smart or AMR meters?
Smart meters use an entirely separate and secure wireless system. You don't need wi-fi in your property for it to work, and it won't use your wi-fi if you have it.
AMR devices communicate with SMS and therefore need very little signal strength. The device contains a roaming SIM which allows the installer to obtain the strongest signal. If necessary, a fixed phone line can be installed (electricity meters only). The costs will be passed onto the customer. For gas meters, the solutions include extended cabling and logger repositioning.