Re: All these posts, and no one has hinted at the real agenda ..
"Smart meters will allow the supplier to reduce - or disconnect - the supply at will. It's a prelude to two-tier energy supplies, where the rich get nice permanent expensive power, and the poor get a supply that can be cut at a whim."
Actually - no.
Regulations already prevent suppliers from disconnecting supplies until absolutely every avenue for recovering debt has failed. Smart meters wont make any difference to that.
Remote disconnect is actually a smartarse DECC idea - suppliers fought it
Having said all that, I've been involved in smart metering with a major supplier (thank goodness, I'm not anymore) and no, they have little to offer the consumer, certainly not at present. The only major significant advantage that I can see, in theory, is the ability for suppliers to provide cheap tariffs for off-peak usage. So, if you're in a position to schedule use of washing machines, dishwashers etc, for weekends and overnight, you stand (theoretically) to gain.
Its not that big an advantage though, is it?