Can I change from Economy 7 to Economy 10

I agree Economy 7 is useless to me but Economy 10 is set out like this in Scotland

• 3 hours in the afternoon (e.g. 1pm – 4pm)
• 4 in the evening (e.g. 8pm – midnight)
• 3 in the early morning (e.g. 4am – 7am)

So using timed heaters during those day time off peak periods is what would make it cheaper for me. Single flat rate tariff would be too expensive.

Octopus Cozy is similar to Economy 10 but it requires a Smart Meter.

Those off peak times cover heater and shower usage, everything running on peak is low energy stuff.

Even if I did have Storage Heaters on Economy 10 it would still use the same amount of energy as regular heaters.

I’m intrigued why you think E10 would be better for you @CuriouslyCinnamon ?

Generally on all ‘Economy’ tariffs, they offer cheaper off-peak electricity but your peak (or other time slots) would be more expensive than a standard tariff. 
Both E7 and E10 tariffs were developed to allow heating devices (such as storage heaters) to store heat at off-peak times and then deliver that heat during peak periods. 
You should be able to switch from E7 to a standard tariff if that is better for your situation 

Edit: I just saw your message which crossed with my question 

The more expensive on peak is not a major concern as I don’t run any high energy appliances during on peak. It would be only on off peak which is cheaper than a standard rate.

To quote OVO’s website

“

• Does your lifestyle mean you’re able to use the majority of your energy during the off-peak hours? As Economy 10 usually works best when you run your heating and appliances during the late evening and overnight.
• Economy 10 is also best for electric”

Yes, unfortunately it also says -

“Right now, one of Economy 10’s major downfalls is that not enough suppliers can offer it – and the number that do looks set to decrease even further. 

One reason for this is that unless you already have an E10 meter, you're unlikely to find a supplier offering them. ”

Well it would be more sensible to continue to offer it (New Installs) until they can guarantee everyone can have a Smart Meter for more complex tariffs, which at present they can’t due to signal issues.

I’m not sure I can add much to what’s already been said.

A word of caution, though: you say that “the more expensive on peak is not a major concern as I don’t run any high energy appliances during on peak ...”. You should do your sums very carefully, although not having a smart meter able to tell you precisely how much energy you use every half-hour doesn’t make this easy. You may be surprised how much electricity is used by what you seem to regard as ‘low-energy appliances’ - televisions, fridges and freezers, for example, particularly older ones, not to mention cookers and electric kettles.

I had a look at OVO’s E10 tariffs for Northern Scotland to see how they compare. In fact, the Simpler Energy plan is far more generous than I expected, with a day rate of 22.88p, night 18.04p and standing charge 59.25p against the single rate of 21.80p with a standing charge of 58.18. Ignoring the difference in standing charge (it’s only £4 a year), you would be better off on the day/night plan if you used more than 22% of your electricity during offpeak hours. The rates will be different in the Scottish Power region.

This is of course academic if your meter doesn’t allow for E10 timings. You haven’t told us anything about your meter or how it handles E7; a photo of the meter itself with its markings and readings clearly visible, and perhaps another of the whole meter backboard with its ancillary equipment and cabling would be very helpful.

There are ways of getting round the smart meter communication hurdles in many parts of Scotland, but they can’t really be used until the smart meter is actually in place. We might have other suggestions once we see your current meter arrangement.

I'm switching from economy 7 to an Economy 10 smart meter in April .  I'm currently on a fixed tariff that ends on 19/04/25  , I had signed up for a further year of fixed tariff before agreeing to the economy 10 . Will the fixed year tariff ( until April 26) still be honoured , the person I spoke to yesterday at Ovo was vague and didn't really give me a definite answer . 

Hi ​@Sal138 ,

Generally speaking, the answer would be yes - your existing contract would normally run to the very last day and then flip to the new one once the clock strikes midnight the following day, which in your case, would be 00:00:01 on the 20th April 2026.

I cannot say for sure what happens if you’re moving between E7/E10 but I think you’d just get migrated to the E10 version of the same tariff you’re currently on.

I will ask around, please bear with me.

Thank you Blastoise 186  , I'm not really getting any answers from ovo . 

Hey ​@Sal138, 

I’ve asked internally look at this and I’ve been advised said an email was sent on 13/03 which confirmed your unit rates. If you can’t find the email or have any specific questions around your rates you can speak with our Support Team and they’ll answer any questions you have. I hope this helps!