I've just joined OVO this month. Been on a waiting list for years with my previous supplier.
My gas meter is outside my door, whereas, my electric meter is in the main communal building, well over 30 metres away.
Although, getting a smart meter doesn't mean cheaper bills as research found..... Plus, as I'm physically disabled, I find it difficult reading my meters, although I am on your PSR (quarterly readings), I would like to be up to date with my readings.
Best answer by Transparent
With two Smart Meters, the electricity one is the "master unit" and the gas meter sends data to it.
There's no reason why both meters have to be changed to Smart Meters, especially if you can still read the nearer gas meter manually.
However, OVO also offer (free) mains-powered Zigbee relays which can be placed between the two meters and amplify the signal onwards. It all rather depends what is actually in the 30m gap you mention.