Funny thing, electricity pricing - I was involved in the new trading arrangements which came into force in 1998. One of the effects of them is that it's cheaper to buy small quantities of electricity than large most of the time, so the big players like Powergen are somewhat handicapped. The difference is nothing like 20% though. Of course, lots of suppliers have short term or 'new customer only' promotions, hoping to get people in and then rely on inertia. The cheapest thing to do is therefore change often.
Do you have people going door-to-door trying to get people to change their gas/electricity company? For a few months here I was plagued by 'em. Started fantasizing about electricifying the doorbell to give them a shock... rude words were thought, but not said.
[flerdle] I did get a few a while back, very strange. The first one opened by saying "How would you like to save money on your electricity bill?", and wanted me to sign up there and then, without even saying what company he was representing. Then a few months later, two young women doing "a survey" asked if I had switched suppliers, "like most of your neighbours have". Nul points. Probably from the same company, whoever they were, and if I did, I'd make a point of never doing business wth them, ever. Then the first chap came back again and I just said "Not interested" and closed the door. [INJ] Odd, I'm going by the companies' own published tariffs for an Economy 7 dual meter. All the companies seem to claim to be at least "part of one of the biggest suppliers", although that's rather an elastic expression.
It has been my experience that deregulating state-owned utility services results in a welter of paperwork for the consumer who is bombarded by junk mail exhorting this or that 'cheaper' version of whatever it is. They invariably aren't cheaper in the long run, largely because of the increased costs associated with legislation, litigation and advertising. Service call-outs become a nightmare of humanless voice-mail mazes and all one really gets is a warm feeling when one thinks about the 'good old days'. My gas service was recently split from the monopolistic energy carrier from my area. Costs increased overnight by 10-15% and there are now three phone numbers to report a gas leak with no 24-hour call-out. The joke? that the billing departments, although ostensibly now separate for gas and electricity, still use the same style account numbers and go to the same building. Indeed, I can pay my electricity bill at a window in a gas-company cashier's office. I suspect the bills are made up on the same computer. It's all a game.
I've argued on the doorstep with an electricity account swapper guy before too. I told him I didn't want to discuss it there and then, and he kept asking me 'why not?'. so I shut the door on him. It was quite scary, to be honest, he was becoming vehement. Lord knows what it's like for little old ladies.
This is one of the benefits of having an entryphone system - with a bit of skill (and luck in having the topmost buzzer) you can generally fend these people off before they gain access to the stair.