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a1anx
Rank 1
Mar 21, 2023 2:50 PM UTC
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KAIFA M120 Smart Meter - can I change to Economy 7?

We have just had a KAIFA M120 smart meter installed. I had hoped that this would enable  economy 7. However OVO at first told me that this was not possible. On a subsequent phone call they told me that it was possible but that I’d have to wait for another installation (meter ?)  and that it would cost £325.  I am not sure about this as looking online I am fairly sure that the new meter can cope with a second tariff. Does any one know anything about this ? And also where can I get a KAIFA M120 smart meter manual.

Tim_OVO
Tim_OVOBest Answer
OVO Forum Legend
Mar 22, 2023 10:42 AM UTC

Updated on 14/10/26 by Ben_OVO

 

Interesting post, @a1anx - I’m not familiar with that meter either. 

 

£325 sounds like the job to upgrade to/from a 3 phase supply. That would be needed if your new energy requirements now demand it, say after you get an electric vehicle charger installed. Or you have a separate meter for off peak and they’re being combined following a smart meter install. There might be other reasons. 

 

But perhaps you actually just need a smart meter with a 5th port for your set up. Do you have a heating system like storage heaters or underfloor heating? Do you just want a two rate (peak and off peak) tariff for cheaper night time usage? If so, we’re unable to reconfigure the meter to ne dual rate, if it’s been installed as single rate - sorry about that!

 

 

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

Blastoise186
Super User
Blastoise186Super User
Super User
Mar 21, 2023 2:53 PM UTC

Hi @a1anx ,

I’m afraid there’s no manual available for that meter. I have one for Aclara (both single and three phase) but that won’t help you.

What kind of heating and hot water do you have?

And yes, all smart meters can do Economy 7 to at least some degree.

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    BPLightlog
    Super User
    BPLightlogSuper User
    Super User
    Mar 21, 2023 3:00 PM UTC

    It’s probably a Kaifa MA120 https://csa-iot.org/csa_product/kaifa-ma120-single-phase-electricity-meter-2/

     

    Bring me Sunshine ~ E&E {Solar PV, Battery Storage, EV, ASHP and Home Assistant automation}
      Rank 1
      a1anxAuthor
      Rank 1
      Mar 21, 2023 3:38 PM UTC

      Yep that’s the one.

       

      Tim_OVO
      OVO Staff
      Tim_OVOBest Answer
      OVO Forum Legend
      Mar 22, 2023 10:42 AM UTC

      Updated on 14/10/26 by Ben_OVO

       

      Interesting post, @a1anx - I’m not familiar with that meter either. 

       

      £325 sounds like the job to upgrade to/from a 3 phase supply. That would be needed if your new energy requirements now demand it, say after you get an electric vehicle charger installed. Or you have a separate meter for off peak and they’re being combined following a smart meter install. There might be other reasons. 

       

      But perhaps you actually just need a smart meter with a 5th port for your set up. Do you have a heating system like storage heaters or underfloor heating? Do you just want a two rate (peak and off peak) tariff for cheaper night time usage? If so, we’re unable to reconfigure the meter to ne dual rate, if it’s been installed as single rate - sorry about that!

       

       

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