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May 7, 2021
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Why do my Economy 7 tariff times (shown on my 5 port S2 smart meter) not match my meter switch times since switching to OVO?

  • May 7, 2021
  • 20 replies
  • 5038 views

I have recently switched to OVO Energy with an Economy 7 tariff.

Shortly before, I had a multi-rate smart meter installed by my previous supplier. The off-peak times were in two blocks: 22:30–00:30 and 02:30–07:30 (times GMT; and also ignore the random switching offset). For the period 00:30–02:30, the tariff returned to the day rate.

On transfer to OVO, it appears that the new tariff information sent to the meter has set the off-peak times to a single 7-hour block of 00:30–07:30 GMT (so currently an hour later due to BST).

However, while the tariff times have changed, the meter’s switching times have not. Thus at 22:30, the storage heater circuit is turned on, but the meter is still charging the more expensive rate. At 00:30, when the meter starts clocking the night rate, the storage heater is switched off. Then, finally, at 02:30, the storage heater circuit comes back on and the meter continues on the night rate until 07:30.

This is a problem for people with storage heaters because the intention is for these to use night rate electricity, as they use a large amount of energy cumulatively. However, with my scenario, they are being activated under the more expensive day rate. Over the course of a year, the additional cost racked up by this will be significant.

Is it possible for the smart meter to be sent updated tariff data to ensure that its off-peak times are aligned with the off-peak circuit activation times?

Best answer by Tim_OVO

Updated on the 11/11/25 by Ben_OVO

Hi everyone, 

 

I’ve updated this related topic, and I wanted to share the latest info I have been given about this:

 

 

Before I jump into specifics, please be aware that the advice below may not apply to you. Our Support Team are best placed to access your account and give you account specific advice, so please take this with a pinch of salt.

 

I’ve shared this thread with a bunch of very clever colleagues who work for OVO to support the smart meter roll out.

 

They have advised that the tariff and the ALCS (auxiliary load control switch - a relay that can open and close to power things attached to it like storage heaters) are two separate objects in a smart meter.

 

When OVO implemented a capability for economy 7 (E7) in SMETS2 meters, it introduced it with a working assumption that there was one SSC/TPR combination for each MPAN area and as such, set up the tariffs/ALCS schedules to this assumption.

 

This has proven to be incorrect and as a result, there are instances where some customers have switched to us on an SSC/TPR that we don't currently support to the minute. This is being corrected, with Kaluza (our billing platform provider) mapping all the possible SSC/TPR combinations to ALCS/tariff schedules for each area, but we’re not sure when this will be delivered.

 

In the meantime we can do a manual workaround to amend either the ALCS or the tariff. If you haven’t done this already please request that a ticket is raised with Support for this, and let me know here if you have any issues. It might be easiest to simply link this topic in a web chat, which you can access here.  

 

Hope this helps,

Tim

 

20 replies

Tim_OVO
OVO Staff
OVO Forum Legend
September 5, 2022

Yeh this is tricky to advise on, @Salltysea. I think it’s worth getting our Support team to send this to another internal team who have a lot more training and access to the back end of the smart meter systems. 

 

They will know if and how the change is needed. Keep us updated in case this helps anyone else with a similar question...

Carbon neutral - we need a community to get there! My green tech: Aclara SGM 1411-B smart meter, Chameleon IHD6
Newcomer
September 5, 2022

Hi Tim, could you advise me of the way to contact the right department, I did have someone helpful, last year who sent an update to my meter, which just stopped the handheld device from connecting, there was then supposed to be an engineer out, this was cancelled twice, and I have not heard from an advanced resolution specialist since Dec 21.

Newcomer
September 6, 2022

I have been on the phone to mark at the advanced resolution team, he has no access to the readings that my meter sends, and apparently nobody in OVO energy, can see the readings that I can of my energy use!

The SMETS2 team are not answering him and I am not able to speak with them anyway! 

Also if this is the case (link below), is my meter timing on economy 10 and and I should be being billed economy 7 rates at economy10 times.?

 

 

Emmanuelle_OVO
Retired Moderator
Retired Moderator
September 6, 2022

Hi @Salltysea

 

I’m sorry for the issues you’ve been having.

 

When you say ‘the readings you see’ are you referring to seeing smart meter readings on your online account or In Home Display (IHD)? If you are seeing usage on the IHD it may still mean we aren’t in communication with your smart meters. 

 

We’ve got a great guide here which will help you identify smart meter issues through the online account or app:

 

 

If we aren’t in communication with your smart meters please complete the Smart Meter Health Check (SMHC) and send the answers to our Support Team

 

 

I don’t have access to your account but it is possible that your meter is Economy 10. Here is how to check when your meter is clocking at off peak:

 

Quote “It's possible to test this by doing a load test during any time you think the meter's off peak register is clocking. Boil a kettle and watch one register increase and the other stay the same.”

 

It’s good to hear your account is now with advanced resolutions. 

 

Keep us posted with how you get on!

Renewable Energy? Big Fan.
Rank 1
July 5, 2025

My Smart meter is not setup for Economy 7 tariff. I only get an off peak rate for 4 hrs a day.

I complaint about this before but have just been ignored.

 

Firedog
Super User
Super User
July 6, 2025

You’ll have to give us a lot more detail of your situation if we’re to be able to make suggestions. How did you find out that you’re only getting 4 hours offpeak each day? It would be helpful to see a photo or two of your meter, one a clear close-up so the display and markings are legible, another showing the whole backboard with the cables to and from the meter.  

You were having trouble accessing your online account last year. Was that difficulty eventually sorted out?

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
Chris_OVO
Community Manager
Community Manager
July 7, 2025

Hey ​@mccord,

 

To help the community and ​@Firedog offer advice, please provide more information, such as photos of your setup, which can help identify what we're working with.

Please also answer the following questions:

  • What tariff are you currently on?
  • How long have you been experiencing these issues, or have you only recently noticed it's for 4 hours?
  • Is there anything at home that could be controlling the circuit and causing it to change?
  • Have you had any meter changes that could have caused the issues you're seeing?
  • Are you based in the North of Scotland or affected by the RTS shutdown?

Your detailed response will enable us to begin helping you.

 

Renewable energy jokes never get old.
Newcomer
September 10, 2025

New smart meter installed last month to replace standard and offpeak ones. Naively thought that would be it, all circuit working ‘round the clock’. So was surprised to discover that the ‘old’ offpeak circuit was still working off peak.

Help Centre explained that there was a 6-8 weeks synchronisation period post installation before everything would be live 24hrs.  

What is being synchronised? Why does it take many weeks? How can a circuit, without its own meter and apparently no timing control, remain working on offpeak timings, after old meter (and clock) removed?

Blastoise186
Super User
Super User
September 10, 2025

Howdy ​@RoddieMac !

Could you show us the new meter real quick? They may be a faster way. The six weeks is to get everything fully established, but some tasks can be done sooner.

Securing energy by zapping security bugs... For that is The Blastoise Way! Remember, I'm just like you - AI Powered Evil Geniuses aren't Staff!
Firedog
Super User
Super User
September 10, 2025

… the ‘old’ offpeak circuit was still working off peak… How can a circuit, without its own meter and apparently no timing control, remain working on offpeak timings, after old meter (and clock) removed?
  

It rather depends on which sort of tariff you opted for, which in turn would dictate what sort of meter was installed - hence the request for nice clear photos of the meter itself and another showing the whole backboard it’s mounted on, so all the cables to and from it are visible.

Normally, if there was storage heating equipment (space and water heaters) using offpeak power, the meter engineer will have installed a meter capable of switching what you call the ‘offpeak circuit’ on and off and wired it up to the meter accordingly. Only if he was told that you didn’t want a dual-rate (peak/offpeak) arrangement would he vary from this procedure.

 

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |