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BPLightlog
BPLightlogBest Answer
Super User
Mar 19, 2026 8:36 PM UTC

Hello BPLightlog
Thanks for your help.

The electricity meter is a KAIFA MA120.

Phil.

That’s useful - Kaifa are quite ‘free’ with their symbols. When you see a -A indication, the meter is showing your export reading. There are a few threads on the forum which discuss this. Here’s a clip from one 

 

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, EV, ASHP and Home Assistant automation}
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7 replies

BPLightlog
Super User
BPLightlogSuper User
Super User
Mar 19, 2026 5:10 PM UTC

Possibly ​@boleskine , what is your meter type?

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, EV, ASHP and Home Assistant automation}
Rank 1
boleskineAuthor
Rank 1
Mar 19, 2026 6:32 PM UTC

Hi BPLightlog

The Solar panels are PV with no battery storage.

BPLightlog
Super User
BPLightlogSuper User
Super User
Mar 19, 2026 7:47 PM UTC

Hi BPLightlog

The Solar panels are PV with no battery storage.

Ok but you mentioned the meter reading … which meter type is it?

-A can often indicate reverse current (ie exporting energy) but different meters can show this differently.

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, EV, ASHP and Home Assistant automation}
Rank 1
boleskineAuthor
Rank 1
Mar 19, 2026 8:02 PM UTC

Hello BPLightlog
Thanks for your help.

The electricity meter is a KAIFA MA120.

Phil.

Hi BPLightlog

The Solar panels are PV with no battery storage.

Ok but you mentioned the meter reading … which meter type is it?

-A can often indicate reverse current (ie exporting energy) but different meters can show this differently.

 

BPLightlog
Super User
BPLightlogSuper UserBest Answer
Super User
Mar 19, 2026 8:36 PM UTC

Hello BPLightlog
Thanks for your help.

The electricity meter is a KAIFA MA120.

Phil.

That’s useful - Kaifa are quite ‘free’ with their symbols. When you see a -A indication, the meter is showing your export reading. There are a few threads on the forum which discuss this. Here’s a clip from one 

 

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, EV, ASHP and Home Assistant automation}
    Rank 1
    boleskineAuthor
    Rank 1
    Mar 20, 2026 3:55 PM UTC

    Hello BPLightlog
    Thanks for your help.

    The electricity meter is a KAIFA MA120.

    Phil.

    That’s useful - Kaifa are quite ‘free’ with their symbols. When you see a -A indication, the meter is showing your export reading. There are a few threads on the forum which discuss this. Here’s a clip from one 

    Hi BPLightlog,
    Thanks for the clarification.
    Regards,
    Phil.

     

      Ben_OVO
      Community Manager
      Ben_OVO
      Community Manager
      Mar 23, 2026 8:12 AM UTC

      ​@boleskine welcome to the OVO Forum community 👋. I hope you had a nice weekend.

       

      I’m glad to see that ​@BPLightlog was able to answer your question. Just to let you know ​@boleskine I’ve added the solar panels badge to your Forum account so that other members will recognise the kit you have installed. For more info on solar and smart meters we’d recommend having a look in our Forum library section here. And, of course, fire any questions to the community if you can’t find the answer you’re looking for in any of our existing material.

       

      Cheers!

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