More pics (yep, I've been going mad since I got this camera!).

Many new services are now being installed into a cabinet set into an outside wall:
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[Linked Image from members.aol.com]

Meters on older installations are generally located inside the house. On overhead feeds, they're usually on a board at high level in a ground-floor room. Where the feed comes in underground, the panel is more commonly located in a cupboard just above floor level. This one is typical:

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This last one also has a PoCo owned timer which switches the dual-tariff meter over to cheap-rate at night.