Fair enough. I presume that you checked that there was not a second one on the side of the cylinder (usually near the bottom)?
I look forward to seeing the readings. Something here 'does not add up'. If your fridge and freezer really were using as much electricity as your figures have suggested in just 4-5 hours at night, over a 24h period they alone would be using far more than your total electricity consumption!
Check by all means, but I think you should be careful not to tell them too much
It sounds as if your installation is wired such that everything (not just the storage heating which you don't have) enjoys those two 2.5h 'daytime' cheap slots as well as the 5h night-time one - in other words, you're getting cheap electricity (for everything) for 10 hours per day - which may or may not be what they intend (it obviously differs from what they wrote to you, which indicated that, somehow, only storage and waters heaters would enjoy cheap rate for the two 2.5h slots)! That would mean that your kWh figures would make much more sense - and also makes it less likely that it would be in your financial interests to change from 'this' situation to a single tarrif - it ought to be easy enough for you to do the sums, if you can find out what standing charge (or equivalent) and kWh charge there would be for a single-rate tariff. Maybe what you are enjoying is what E.ON actually intend - so perhaps you should find a 'careful' way of asking them specifically whether your whole installation gets chep electricity during the two 2.5h 'daytime' slots.Check by all means, but I think you should be careful not to tell them too much
Kind Regards, John
Fair enough - and, obviously, during that 10h. all of the electricity usage is at cheap rate. That's the same as my E7, except that my 7-hour cheap night-time period has become 10 hours for you. The day/night readings you've reported make more sense with a 10h cheap period.
There's nothing that the bills can do to adjust for the GMT/BST change - all they know is what electricity has been used during the period (whatever that may be) whilst the meter was switched to night rate. So, yes, you have to alter when you put your WM on according to the time of year.
The sums are obviously very simply once you have the rate etc. figures.
As I think I've probably said, what you have is exactly the same as my E7 (except that mine is 7 hours rather than 10) - my meter switches from day to night rate for 7 hours overnight and all the electricity I use during that period simply tots up on the meter's night reading and gets charged at the cheap rate. That's clearly how your house is also wired. To get the sort of tariff EON described to you would require a significantly more complicated set-up- since, amongst other things, it would require storage heaters to be metered as 'cheap units' but all other electricity usage to be metered as 'day units' at the same time during the two 2.5 hour slots they mentioned. What we don't know is what sort of set-up they think/intend you have! It's probably best to discover the rates and do the sums before you start asking them about that!
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