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August 26, 2024
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Complex meter: Refused Economy 7?

  • August 26, 2024
  • 83 replies
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Hello, we bought our current flat a few months ago and found out that Ovo is our electricity supplier. It is an all electric property, with electric immersion heater for hot water and electric storage heaters. This flat was designed around off peak electricity.

 

There are 2 electricity meters, one so called white meter just for the off-peak circuit (storage heaters plus immersion water heater) and one for everything else, each with a separate MPAN number. The off peak meter turns the off peak circuit on and off, so that water heater and storage heaters only have power at night, it is the RTS type. 

 

When we moved in, Ovo created 2 account numbers, one for each meter and put each on the single rate tariff (without consulting or giving options).

 

This means that we have to pay the standing charge twice and we have to pay expensive rate for hot water and heating. 

I have contacted Ovo multiple times (calls and chat) asking to:

  1. have only one account with one standing charge 
  2. be moved onto some type of off-peak tariff (Economy 7 or something else)

 

I was told that neither is possible. I was told that they cannot merge the two accounts and that they cannot put me on Economy 7, because I have the two meter set up (complex meter).

Also, I wasn’t offered migrating to a 5-port smart meter with Economy 7 as a solution - I only came across it on this forum. 

I don’t understand this. Why can’t they offer some kind of peak / off-peak tariff to me?

 

I know about the shut down of RTS signal next year and the push to smart meters. However, switching to a smart meter is not useful for us if they refuse to change our tariff.

Also, I think we should only be paying one standing charge, as these two MPANs are associated (it is one household). 

Can you please advise? What are our options?

Best answer by Firedog

Updated on 21/04/26 by Chris_OVO

Check out our dedicated RTS FAQs page for more information.

You should hear shortly from OVO about arrangements for replacing your meters with a new smart meter, if you haven’t heard already. Until then, I’m afraid you’re stuck with the current tariff: OVO doesn’t have any that can apply one high rate to one of the supplies and a low one to the other, and I don’t think there’s any other supplier that could do this.

 

No-one with a complex metering arrangement (what the industry calls a Restricted Meter Infrastructure, RMI) should have to pay two standing charges if the tariff is single-rate. I would think that the artifice of two separate supplies is immaterial in this respect: you are being penalized in the way that this condition (SLC 22G) is intended to avoid. You should submit a complaint in writing about this, expecting to have any extra standing charges you may have paid refunded. Other customers who went all the way with complaints like this were also given compensation for OVO’s failure to comply with their licence conditions. Read about Ofgem’s decision on this sort of situation. 

 

83 replies

Emmanuelle_OVO
Retired Moderator
Retired Moderator
July 24, 2025

Hey ​@Koolqat,

 

The Radio Teleswitch Service (RTS) is being switched off because the underlying technology and infrastructure are reaching the end of their operational life. This means the equipment that sends the radio signal to switch between peak and off-peak electricity rates can no longer be adequately maintained.

https://www.energy-uk.org.uk/customers/the-radio-teleswitch-service-switch-off-what-you-need-to-know/
 

 

What is the Radio Teleswitch Service, and what is it used for?
 

The Radio Teleswitch Service (RTS) uses a radio signal to tell some older electricity meters when to switch between peak and off-peak rates. RTS is used for some traditional multi-rate meters and was designed to support those who use electricity for their heating and hot water. This may include those who use electric storage systems, panel heaters or immersion heaters in water tanks – some of which typically charge up overnight.

RTS allows energy suppliers to offer different tariff rates; so consumers can make use of cheaper off-peak tariffs to charge their heating and/or hot water systems up overnight.

RTS was introduced in the 1980s, and is now reaching the end of its natural operational life. This means the equipment that produces the radio signal can’t be adequately maintained anymore.

There are plans where customers are charged cheaper rates for using energy during off peak times like economy 7 & economy 10. There are also grid balancing schemes like power move & power move flex. Find out more here:
 

 

 

Renewable Energy? Big Fan.
Newcomer
July 24, 2025

Hi Emmaunuelle_OVO

Thank you for all the information.

I am well aware of the RTS switch off. I am really keen to get my system upgraded and according to all the guidelines I have read they say that my supplier “should offer a tariff that is suitable for the hot water and/or heating set-up in your home.”

Unfortunately I am not being offered a similar tariff to my existing tariff and what ever way I go is going to result in higher electricity bills and probably rewiring costs to keep my heating functioning.

This is in the main a modern all electric property and all I am asking for is power to be supplied as it has been for the past 25 years. I don’t understand why installing a smart metering system prevents power being provided as previously.

Nukecad
Super User
Super User
July 24, 2025

Note that the Ofgem statement is actually

move households with a Radio Teleswitch meter to a smart meter onto a suitable tariff that reflects their usage patterns or another smart tariff of their choice

 https://www.ofgem.gov.uk/energy-advice-households/replacing-your-radio-teleswitch-electricity-meter

it only says “suitable tariff”, it does not say “similar tariff”.

Yes the current tariffs will in a lot of cases result in higher running costs than your previous “special” tariff.

(Some of that higher cost can be mitigated, by changing heater types, or rewiring existing heater timers, or even just changing how you use your heaters).

What you are being offered are the common tariffs that have been being offered to most UK users for years. (E7, E9, and E10).

If you look at it that way then you have been enjoying a cheaper tariff rate than most consumers in the UK for a number of years now, unfotunately that bonus of a special cheaper rate that you have had the benefit of has now come to an end with the end of RTS.

I realise that's not what you want to hear.

However it is what it is and your tariff is being brought into line with the tariff rates that general consumers in the UK have had to pay for years now.

 

I said, Hey - Watts going on.