My gas supply company wants me to install a smart gas meter. As I can't really find satisfactory answers on the net to the questions I have, maybe someone here can explain. The existing meter is on the outside wall of the garage. I have a smart electricity meter alongside the CU in a cupboard in the kitchen, a few metres away from the gas meter. This meter has a little mains-powered readout display by the TV in the sitting room, so that in idle moments I can see how much juice I'm using, before finding more productive things to do. I get my electricity from OVO, my gas from British Gas.
AIUI, they don't power gas meters from mains electricity, due to risk of explosion. Is this correct?
Because of the above, gas meters are powered by a lithium battery with a nominal lifetime of about 10 years. How does this battery get recharged, if indeed it does, or does it just get replaced? Who replaces it, me or an engineer, and how do I/they know when replacement is needed?
A remote display is available similar to the one for the electricity. But my understanding is that to avoid running the gas meter battery down too quickly by continuously sending data to this display, it or the data-stream can be switched off. If the data-stream gets sent to the supplier (via DCC?) anyway, how does this save battery life on the gas meter itself? Or is it just the remote display that is switched off, in which case why aren't they mains-powered like my electricity display?
Can a smart gas meter be used to turn off the gas supply remotely, like a smart electricity meter is supposed to be able to do?
Is a smart gas meter going to be even less exciting than a smart electricity meter? Apart from my not having to go outside and read the gas meter directly once or twice a year (no great hardship), is there really any point to it? I suppose it does mean that a meter reader doesn't have to call (once a year at the moment IIRC) but that doesn't benefit me in any way.
Questions, questions! They'll do for the moment, until I think of some more!