Autumn-Winter Rise in Costs.

Qyburn

Dandytf said:

and in Cost comparison.

I'd concentrate on kWh. There's nothing you can do day by day to affect the tariff, and comparing costs between two periods when the price was very different is pretty meaningless.

Speaking of tariff I don't think you've said what rates you're paying.

Was your £199 bill for two months, it's really not clear from your first and second posts?

EssexHebridean

This sounds very much like an issue around the manual programming on the Quantum heaters - which can indeed catch people out when clocks change and things like that. Far safer if at all possible to have the secondary feed wired in to enable full automatic on the timing.

Also - if you can get things on to the second feed to automate,  try to trust the Quantum’s ability to adjust the charge needed to cope with temperatures changes - they really are astonishingly good on that front. Use the inbuilt programming options to set the timings you want the output, make sure any changes of temperature for the next day are made ahead of the next charging period, as this means it will adjust the charge period itself. 

Have you done a check to see if there might be any other suppliers who might give you a better option price wise for your use?  It may well be that a switch to a supplier with a better day/night split, at least through the colder weather, could be worthwhile for you.

Chris_b2z

You have been hit by Scottish Power stealth increase. They sent you an email in September subjectline 'Energy prices are changing in October' stating that 'Your annual energy bill is set to reduce as your energy prices are changing'. That was misleading and completely false for any high off-peak users on their E7 tarrif.

Comparing current Scottish Power Economy 7 unit rate vs a year ago -

                   Oct 2022     Oct 2023
Day rate      42.103         32.646        Decrease of 22.5%
Night rate    10.644         16.300        Increase of 53%

This means that households which rely on night storage heaters for heating will be facing significantly higher bills this winter even though Ofgem are telling us that energy prices are on their way down. The E7 off-peak rate has been gradually increasing throughout the warmer seasons when it would have made minimal impact.

Fortunately, you spotted this early and can switch suppliers before the worst of winter sets in.

QrizB

Chris_b2z said:

You have been hit by Scottish Power stealth increase.

That's an opinion, although not necessarily an accurate one.

Chris_b2z said:

                   Oct 2022     Oct 2023
Day rate      42.103         32.646        Decrease of 22.5%
Night rate    10.644         16.300        Increase of 53%

Or, put another way, your day rate has fallen by ~9.5p/kWh and your night rate has risen by ~5.7p/kWh.

Anyone using ~38% or more of their electricity on the day rate will see a reduction in their energy costs. This will include the majority of E7 customers.

Dandytf

QrizB said:

Chris_b2z said:

You have been hit by Scottish Power stealth increase.

That's an opinion, although not necessarily an accurate one.

Chris_b2z said:

                   Oct 2022     Oct 2023
Day rate      42.103         32.646        Decrease of 22.5%
Night rate    10.644         16.300        Increase of 53%

Or, put another way, your day rate has fallen by ~9.5p/kWh and your night rate has risen by ~5.7p/kWh.

Anyone using ~38% or more of their electricity on the day rate will see a reduction in their energy costs. This will include the majority of E7 customers.

Exactly it was best option as I WFH, though if I need to change it's 100 Exit Fee.
Though Day Time Decrease is fine.
Night Rate increase seems excsessve though I had bee reading about more potential whole sale Increases expected, hence I left SVR for year ahead until Aug '24. 

Dandytf

EssexHebridean said:

This sounds very much like an issue around the manual programming on the Quantum heaters - which can indeed catch people out when clocks change and things like that. Far safer if at all possible to have the secondary feed wired in to enable full automatic on the timing.

Also - if you can get things on to the second feed to automate,  try to trust the Quantum’s ability to adjust the charge needed to cope with temperatures changes - they really are astonishingly good on that front. Use the inbuilt programming options to set the timings you want the output, make sure any changes of temperature for the next day are made ahead of the next charging period, as this means it will adjust the charge period itself. 

Have you done a check to see if there might be any other suppliers who might give you a better option price wise for your use?  It may well be that a switch to a supplier with a better day/night split, at least through the colder weather, could be worthwhile for you.

Honestly I'm tempted to 'Reset' option via 'Hidden Menu'
Both Feeds are Wired by eventual Pro Electrician with correct Hardware and re checked.
BST/BMT switch accurate as DQ Stores from pre midnight as per clocks back one hour.
If I revert to Reset then it won't invoke Factory Settings until tomorrow.
One important point, considering 2nd Low Rate Feed was from existing what was Eco 7 old style storage heater-
Is it correct that DQ only needs 30-40 Mins overnight storage, I thought it would need more during Winter.
I've prob over scheduled though work with WFH days and Non WFH days.

Maybe other Suppliers have better options, there weren't any when I last checked, I wish SP would launch TOU as their 'Overnight ' Plan seems very Eco 7 friendly. 

Overnight Plan

Winter

Peak – 10:00 – 23:59

Off Peak – 00:00 – 09:59

Summer

Peak – 11:00 – 00:59

Off Peak – 01:00 – 10:59

I'll try reset 1st only change I had made was to reduce 'Additional Storage Hours' from 3 to Nil as room temps are not exceeding 18c overnight.

Dandytf

Qyburn said:

Dandytf said:

and in Cost comparison.

I'd concentrate on kWh. There's nothing you can do day by day to affect the tariff, and comparing costs between two periods when the price was very different is pretty meaningless.

Speaking of tariff I don't think you've said what rates you're paying.

Was your £199 bill for two months, it's really not clear from your first and second posts?

Help Beat Cancer Green Flexi August 2024 

Day  Rate

36.598p

Night Rate eco7

17.836p

SC 61.62p

199 bill 8th Oct-9th Nov.

thanks

Chris_b2z

QrizB said:

Anyone using ~38% or more of their electricity on the day rate will see a reduction in their energy costs.

Let's not forget that the Ofgem energy price cap was reduced from £2,500 to £1,834 during this period. Does that discount apply to a typical SP E7 customer using 38% peak electricity as their email implies?

EssexHebridean

If I were you, I think I would indeed reset everything and then trust the heaters to do their thing. You will still need to set up your heating schedule - which I assume you set on “home all day” as you WFH? The Quantums should manage their own storage time effectively though. 

I found a small digital thermometer very helpful for monitoring what temperature various areas of the property were actually reaching too - and generally speaking, I found that the output setting on the quantum equalled around 2° lower in actual achieved temperature - although that may well vary depending on your room layout, where the heaters are etc. 

QrizB

Chris_b2z said:

QrizB said:

Anyone using ~38% or more of their electricity on the day rate will see a reduction in their energy costs.

Let's not forget that the Ofgem energy price cap was reduced from £2,500 to £1,834 during this period.

No, the change from July to October for a dual-fuel customer was from £1976 to £1834 on an equivalent TDCV basis, a reduction of approx. 7%. See Annex 1 for a full breakdown.

Chris_b2z said:

Does that discount apply to a typical SP E7 customer using 38% peak electricity as their email implies?

The "typical E7 customer" uses 58% of their electricity on the day rate. That typical customer will see an 11% decrease in their energy costs on SP's new tariff.