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Rank 6
February 16, 2023
Solved

2 meters and two mpans- Can I get a smart meter?

  • February 16, 2023
  • 19 replies
  • 1355 views

I am confused. We bought this 1969 house in 1973 and it has still got the underfloor electric heating. we have 2 meters and two mpans. 

one meter is attached to the consumer unit which supplies all of the lighting and 13 amp sockets and electric shower plus a socket in th airing cupboard into which we could plug the immersion heater if we wanted hot water outside the offpeak times..

The other meter  is supplied via a mechanical timer  and supplies a separate consumer unit which is connected only to all of the underfloor heating in every room and the hot water immersion heater only.

This meter appears to be switching on and off between 1400 and 1800 and  2200and 0800 and was billed when we first moved in as off peak rate B by the eastern electric

board. 

If we went to smart meters would we not want one for the general 24hours cicuit board and a second one for the heating and hot water board replacing the two meters we have installed at present

The current meters were replacements fitted about 10 years ago by EON the electricity supplier at the time. ( I seem to remember it was something about routine replacements after 20 years)

Best answer by M.isterW

Updated on 26/06/25 by Abby_OVO

 

You could investigate the TOU (time of use) tariffs that are available from various energy companies. I can't find one that offers exactly what you have now but there are a number of options available. They normally work on a standard smart meter, charging a lower amount for all your usage in the cheaper periods.

 

To give you an example, we're on a tariff that is cheap from 4am to 7am and from 1pm to 4pm. It's expensive from 4pm to 7pm and we pay the normal variable rate the rest of the time.

If you have a complex meter set up and are interested in getting a smart meter installed, the following topics might have some helpful information:

 

 

19 replies

M.isterW
Rank 6
Rank 6
February 16, 2023

You could change to Economy 7 with a 5 terminal smart meter. That would give you cheaper electricity overnight for your heating, and hot water, and more expensive electricity during the day for everything else. You would then only pay one standing charge. I would call your energy company and ask for help.

1992 4 bed detached house. Solar PV + battery, Zappi EV charger, Mitsubishi Ecodan ASHP and i-life2 fan assisted radiators.... No gas 😊
Rank 6
February 17, 2023

we would not then have our afternoon top up at off peak rate and in the winter we need that top up.

Rank 6
February 17, 2023

we need the afternoon top up as its too cold in the evenings without it and we would not be able to switch on any underfgoor heating if the off peak rate only flowed through the meter for 7 night hours.

Blastoise186
Super User
Super User
February 17, 2023

OVO is investigating Economy 10 support, which might do what you’re after. And from what I remember, Smart Meters can support it provided they’re configured correctly.

I spoke to one of OVO’s internal smart meter experts back in November 2022 and he told me all about it. I’d hang in there for now because that support isn’t quite ready juuuuuuuust yet.

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!
M.isterW
Rank 6
M.isterWSolved
Rank 6
February 17, 2023

Updated on 26/06/25 by Abby_OVO

 

You could investigate the TOU (time of use) tariffs that are available from various energy companies. I can't find one that offers exactly what you have now but there are a number of options available. They normally work on a standard smart meter, charging a lower amount for all your usage in the cheaper periods.

 

To give you an example, we're on a tariff that is cheap from 4am to 7am and from 1pm to 4pm. It's expensive from 4pm to 7pm and we pay the normal variable rate the rest of the time.

If you have a complex meter set up and are interested in getting a smart meter installed, the following topics might have some helpful information:

 

 

1992 4 bed detached house. Solar PV + battery, Zappi EV charger, Mitsubishi Ecodan ASHP and i-life2 fan assisted radiators.... No gas 😊
Rank 6
February 18, 2023

Blastoise186,

Who would I ned to speak to at ovo as at the moment I a,m on a fixed 2 year tarrif which ends in October 2023. I keep getting emails and texts saying you have submitted your last monthly reading so now you need to arrange a smart meter fitting. I do not want this unless the smart meter can continue with my current tarriff and allow me the 10 hours or so night rate and the boost period in the afternoon ( This was called off peak rate B by Eastern Electricity and I belive it gave us either 10 until 8 or 8 until 8 at night and then 2 until 4 or 6 in the afternoon.) I am getting on a bit in years and have difficulty remebering the exact details . we have 2 Mpans and 2 meters and happlily pay 2 standing charges in order not to lose the afternoon top up for our 1969 underfoor heating as we have no other source but a single coal fire in the lounge.

Tim_OVO
OVO Staff
OVO Forum Legend
February 20, 2023

@confused off peak b the advice above is good, at the moment a smart meter from OVO doesn’t support economy 10. As I see it your options are:

 

  1. Delay getting a smart meter until an economy 10 tariff from OVO becomes available
  2. Move to a supplier that’s able to offer a tariff that suits your needs
  3. Get a smart meter and reduce your standing charges, with an eco-7 plan. 

 

Let me know your thoughts on this. As soon as we hear about eco-10 being available we’ll update our content to confirm .

Carbon neutral - we need a community to get there! My green tech: Aclara SGM 1411-B smart meter, Chameleon IHD6
Rank 6
February 20, 2023

good morning Tim

I am able to continue with the old style meters and read manually monthly until October as long as the Ovo system lets me log the readings in online. At the moment I have to call the Apollo team each month because the on line system has a fault which has not been corrected since it occurred in January.

As far as the Smart metering is concerned I do not think eco-7 would be a good idea as the house does need an afternoon boost and I do not know how I would get this if we did not have the current two MPAN system with an afternoon boost period.

Please will you let me know when eco-10 becomes available on Ovo  Smart Metering as I will immediately switch to a smart meter installation and stay with Ovo where I have been a customer since 2011

Tim_OVO
OVO Staff
OVO Forum Legend
February 21, 2023

I’ll make a note to contact you directly, @confused off peak b, when Eco-10 becomes available - that’s the least we could do considering the issues you’ve had with submitting readings.

Carbon neutral - we need a community to get there! My green tech: Aclara SGM 1411-B smart meter, Chameleon IHD6
Rank 6
April 1, 2023

Hi  Tim

Any news coming yet about economy10 and smart meters as above?

I have just been shown a page from Ovo which lists 3 off peak plans E, F and Fx. It looks to me as if off peak plan F may be something I could try if that fits with a smart meter installation. It would mean Ovo arranging to remove my off peak MPAN and meterand time clock and then fitting the new smart meter to the tails of the onpeak and off peak meters to the ports on the smart meter and then programming the smart meter to supply  off peak between 1.30pm  and 4 pm and 11 pm and 7 am. Can this be done by October 2023 or is the date still not known when this  Eco-10 multi rate smart metering will be available?

regards

Bob