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Smart meter not coming out of Economy7 - and being charged high rate while high usage devices are on


I have been working on this for a little while...
I have noticed that my smart meter on EDF is not coming out of economy 7 at 8am... and in fact is still running the high usage devices (my heaters and water heater) for upto an hour after the economy 7 ends!!!!
Thus I am getting charged upto £3 a day for electricity I shouldn't be able to use.!!!
I have read on other forums, that this is not limited to EDF, and that some smart meters on other providers are doing similar.
This was never a problem (as far as I am aware) on the older type dumb meters, but I never had the data to analyse.
I have collected every days data (by half hour) since May 2022, and while it wasn't as noticable in the summer (no heating), it was still happening since the smart meter was installed.
EDF of course are being the ever unhelpful selves (overseas call centres and chatbots... grrrr)
So I suggest those with smart meters (and especially those with EDF) really look at the usage you have and pay particular attention to the hour 8am - 9am... I know I won't be alone with being over charged.... !!!
Comments
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Which region are you in and are you aware that the off peak times on most Economy 7 tariffs controlled by smart meters are based on GMT. They do not adjust for the GMT/BST time daylight saving shift.
Are your heaters and hot water not wired to a circuit switched by the meter when Eco 7 is active?
If they are controlled by external timers you may need to adjust these to account for the daylight savings hour changes each year. Some timers auto adjust the hour which results in the Eco 7 period being out of sync with the timer settings.
I stand to be corrected, but I would be very surprised if EDF is short changing you on the 7 hour Eco 7 window.
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I have noticed that my smart meter on EDF is not coming out of economy 7 at 8am... and in fact is still running the high usage devices (my heaters and water heater) for upto an hour after the economy 7 ends!!!!Economy 7 goes by GMT. It does not go by BST. So, when the clocks change, economy 7 doesnt change with it. That could possibly account for the hour difference.I have read on other forums, that this is not limited to EDF, and that some smart meters on other providers are doing similar.I am on economy 7 with a last generation digital meter (not smart meter). So, everything is done by timers rather than circuits and that too doesnt change when the clocks change. So, when it becomes 7.30BST it is still 6.30GMT and economy 7 will run on for another hour.
With October going back to GMT, you would expect it to revert back to the default.I have collected every days data (by half hour) since May 2022, and while it wasn't as noticable in the summer (no heating), it was still happening since the smart meter was installed.In the Summer it should have been more noticeable because of BST. Although your use may have been light.
The other thing that can happen is your timers can go out of sync. That isnt common with smart meters but was with digital meters. We are on our second digital meter and both went out of sync. Currently our night rate begins at 8.50am and finishes at 3.50pm. our timers just get adjusted whenver it moves out of sync and moves on again.So I suggest those with smart meters (and especially those with EDF) really look at the usage you have and pay particular attention to the hour 8am - 9am... I know I won't be alone with being over charged.... !!!If it isnt the BST/GMT changeover (which it usually is when someone mentions this) and its a fault then you need to decide if the fault is in your favour, like us, and just adjust your timers to match. if you are circuit controlled then it doesn't make much difference.
I am an Independent Financial Adviser (IFA). The comments I make are just my opinion and are for discussion purposes only. They are not financial advice and you should not treat them as such. If you feel an area discussed may be relevant to you, then please seek advice from an Independent Financial Adviser local to you.0 -
dunstonh said:I have noticed that my smart meter on EDF is not coming out of economy 7 at 8am... and in fact is still running the high usage devices (my heaters and water heater) for upto an hour after the economy 7 ends!!!!Economy 7 goes by GMT. It does not go by BST. So, when the clocks change, economy 7 doesnt change with it. That could possibly account for the hour difference.I have read on other forums, that this is not limited to EDF, and that some smart meters on other providers are doing similar.I am on economy 7 with a last generation digital meter (not smart meter). So, everything is done by timers rather than circuits and that too doesnt change when the clocks change. So, when it becomes 7.30BST it is still 6.30GMT and economy 7 will run on for another hour.
With October going back to GMT, you would expect it to revert back to the default.I have collected every days data (by half hour) since May 2022, and while it wasn't as noticable in the summer (no heating), it was still happening since the smart meter was installed.In the Summer it should have been more noticeable because of BST. Although your use may have been light.
The other thing that can happen is your timers can go out of sync. That isnt common with smart meters but was with digital meters. We are on our second digital meter and both went out of sync. Currently our night rate begins at 8.50am and finishes at 3.50pm. our timers just get adjusted whenver it moves out of sync and moves on again.So I suggest those with smart meters (and especially those with EDF) really look at the usage you have and pay particular attention to the hour 8am - 9am... I know I won't be alone with being over charged.... !!!If it isnt the BST/GMT changeover (which it usually is when someone mentions this) and its a fault then you need to decide if the fault is in your favour, like us, and just adjust your timers to match. if you are circuit controlled then it doesn't make much difference.0 -
lohr500 said:Which region are you in and are you aware that the off peak times on most Economy 7 tariffs controlled by smart meters are based on GMT. They do not adjust for the GMT/BST time daylight saving shift.
Are your heaters and hot water not wired to a circuit switched by the meter when Eco 7 is active?
If they are controlled by external timers you may need to adjust these to account for the daylight savings hour changes each year. Some timers auto adjust the hour which results in the Eco 7 period being out of sync with the timer settings.
I stand to be corrected, but I would be very surprised if EDF is short changing you on the 7 hour Eco 7 window.
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AllanInness said:dunstonh said:I have noticed that my smart meter on EDF is not coming out of economy 7 at 8am... and in fact is still running the high usage devices (my heaters and water heater) for upto an hour after the economy 7 ends!!!!Economy 7 goes by GMT. It does not go by BST. So, when the clocks change, economy 7 doesnt change with it. That could possibly account for the hour difference.I have read on other forums, that this is not limited to EDF, and that some smart meters on other providers are doing similar.I am on economy 7 with a last generation digital meter (not smart meter). So, everything is done by timers rather than circuits and that too doesnt change when the clocks change. So, when it becomes 7.30BST it is still 6.30GMT and economy 7 will run on for another hour.
With October going back to GMT, you would expect it to revert back to the default.I have collected every days data (by half hour) since May 2022, and while it wasn't as noticable in the summer (no heating), it was still happening since the smart meter was installed.In the Summer it should have been more noticeable because of BST. Although your use may have been light.
The other thing that can happen is your timers can go out of sync. That isnt common with smart meters but was with digital meters. We are on our second digital meter and both went out of sync. Currently our night rate begins at 8.50am and finishes at 3.50pm. our timers just get adjusted whenver it moves out of sync and moves on again.So I suggest those with smart meters (and especially those with EDF) really look at the usage you have and pay particular attention to the hour 8am - 9am... I know I won't be alone with being over charged.... !!!If it isnt the BST/GMT changeover (which it usually is when someone mentions this) and its a fault then you need to decide if the fault is in your favour, like us, and just adjust your timers to match. if you are circuit controlled then it doesn't make much difference.Out of interest - can you confirm how many cables emerge from the bottom of the SM, and whether they are “thick” or “thin” ones? A picture of the meter might also assist.🎉 MORTGAGE FREE (First time!) 30/09/2016 🎉 And now we go again…New mortgage taken 01/09/23 🏡
Balance as at 01/09/23 = £115,000.00 Balance as at 31/12/23 = £112,000.00
Balance as at 31/08/24 = £105,400.00 Balance as at 31/12/24 = £102,500.00
Balance as at 31/08/25 = £ 95,450.00
£100k barrier broken 1/4/25SOA CALCULATOR (for DFW newbies): SOA Calculatorshe/her0 -
EssexHebridean said:AllanInness said:dunstonh said:I have noticed that my smart meter on EDF is not coming out of economy 7 at 8am... and in fact is still running the high usage devices (my heaters and water heater) for upto an hour after the economy 7 ends!!!!Economy 7 goes by GMT. It does not go by BST. So, when the clocks change, economy 7 doesnt change with it. That could possibly account for the hour difference.I have read on other forums, that this is not limited to EDF, and that some smart meters on other providers are doing similar.I am on economy 7 with a last generation digital meter (not smart meter). So, everything is done by timers rather than circuits and that too doesnt change when the clocks change. So, when it becomes 7.30BST it is still 6.30GMT and economy 7 will run on for another hour.
With October going back to GMT, you would expect it to revert back to the default.I have collected every days data (by half hour) since May 2022, and while it wasn't as noticable in the summer (no heating), it was still happening since the smart meter was installed.In the Summer it should have been more noticeable because of BST. Although your use may have been light.
The other thing that can happen is your timers can go out of sync. That isnt common with smart meters but was with digital meters. We are on our second digital meter and both went out of sync. Currently our night rate begins at 8.50am and finishes at 3.50pm. our timers just get adjusted whenver it moves out of sync and moves on again.So I suggest those with smart meters (and especially those with EDF) really look at the usage you have and pay particular attention to the hour 8am - 9am... I know I won't be alone with being over charged.... !!!If it isnt the BST/GMT changeover (which it usually is when someone mentions this) and its a fault then you need to decide if the fault is in your favour, like us, and just adjust your timers to match. if you are circuit controlled then it doesn't make much difference.Out of interest - can you confirm how many cables emerge from the bottom of the SM, and whether they are “thick” or “thin” ones? A picture of the meter might also assist.
I did a test the last 2 days... yesterday I put on a storage heater at 5am (knowing that it wouldn't be fully charged at 8am) and the economy 7 circuit switched off approx 9:30am Today i ensured no heaters or hot water were on (physically switched off all the high usage devices before 8am) and the circuit dropped at 8am... so its load related.. I believe this is called "latching", but the meter should actually just drop the circuit at 8am.0 -
Hi, I had a similar E7 overcharging problem with EDF last year (though my timings were not affected by loading):
http://forums.moneysavingexpert.com/discussion/comment/79131957#Comment_79131957
EDF eventually replaced the meter (and paid £150 compensation).
If you're sure of your facts (you need to monitor the registers at the meter during switchover time) you need to raise a complaint with EDF.
Scrounger
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Scrounger said:Hi, I had a similar E7 overcharging problem with EDF last year (though my timings were not affected by loading):
http://forums.moneysavingexpert.com/discussion/comment/79131957#Comment_79131957
EDF eventually replaced the meter (and paid £150 compensation).
If you're sure of your facts (you need to monitor the registers at the meter during switchover time) you need to raise a complaint with EDF.
Scrounger0 -
Scrounger1 -
Hi,AllanInness said:
I have noticed that my smart meter on EDF is not coming out of economy 7 at 8am... and in fact is still running the high usage devices (my heaters and water heater) for upto an hour after the economy 7 ends!!!
You said "Thus I am getting charged upto £3 a day for electricity I shouldn't be able to use.!!!"Then you said "I am sure of my facts... and I have just calculated that in 7 months I have been overcharged by £90 (plus VAT) just for the 1 hour !!"Are you so sure of your facts?0
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