[martiuk]

I recently had my smart meter installed, the actual meters (and the display) themselves connect over a Home Area Network (HAN) and a separate module attached to the electricity meter connects to the mobile network to push readings.

Speaking to the installer, he said that it's common in the north of England for meters to use radio comms instead of mobile network due to the poor reception, I imagine these are unaffected.

[mprev]

It might be more due to the weird way that the government divided responsibility for the metering connectivity. Arqiva have the northern segment and O2 the southern, so they use the method that best suits their existing infrastructure.