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Rank 2
January 9, 2023
Solved

Smart meter sending Solar generation as consumption?

  • January 9, 2023
  • 31 replies
  • 3980 views

Had solar and battery storage installed in December. All working as it should and inverter is showing solar generation, as is the Solar company’s app. But on the OVO portal and app our kWh consumption is unchanged, despite solar company data showing that we’re generating and using solar.

 

Rang the solar installer and they advised to contact OVO as they needed to send an update to the meter so it will record correctly.

 

I spent 5 hours in the web chat queue today to speak to someone. Eventually reached position 3 and then never got any further. So I thought I’d ask here first whether anyone has heard of this before and will a simple call fix the issue or not?

 

Just looking to hear similar experiences before I face another day of waiting in a long queue to get nowhere.

Best answer by BPLightlog

Hi @stefbrowne_132 on your picture I can only see one CT connection for the solar PV / Battery system .. there are usually 2. These can be arranged back to front and give false readings to the solar system (what make is it?)

Unless the installer has connected incorrectly, your smart meter which the energy company uses (OVO in this case) cannot add the solar generation onto the meter reading. As others have said, your smart meter does not need updating to cope with a solar installation.  

 

31 replies

Rank 4
January 9, 2023

Hmm. My guess would be that the battery is holding on to the solar generated and not feeding it in to the house, like it’s setup in standby mode in case of a power cut. Obviously making assumptions here. 

Do you have an app or website you can screenshot todays figures to show us? 

15kwh grid-tied battery, ASHP Daikin 11kw R410 mono + 300l Cylinder. 3.3kw Solar PV. Kia e-Niro EV
BPLightlog
Super User
Super User
January 9, 2023

Hi @stefbrowne_132 on your picture I can only see one CT connection for the solar PV / Battery system .. there are usually 2. These can be arranged back to front and give false readings to the solar system (what make is it?)

Unless the installer has connected incorrectly, your smart meter which the energy company uses (OVO in this case) cannot add the solar generation onto the meter reading. As others have said, your smart meter does not need updating to cope with a solar installation.  

 

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, Hybrid EV, ASHP and Home Assistant automation}
Rank 4
January 9, 2023

@BPLightlog one CT clamp (the white block) is usually sufficient if the solar and battery are connected to the same hybrid inverter, which you would expect for a fresh install. A second CT clamp would only be needed if there is a separate inverter for the solar PV or there is a diverter for an immersion heater in the hot water tank. 
The CT clamp is exactly the same model as mine and is in the same orientation, so think this is ok. 

15kwh grid-tied battery, ASHP Daikin 11kw R410 mono + 300l Cylinder. 3.3kw Solar PV. Kia e-Niro EV
M.isterW
Rank 6
Rank 6
January 9, 2023

I can't see anything wrong in the photo and your smart meter doesn't need an update (your solar installer is talking nonsense).

If your system has been installed and set up correctly it will generate electricity which your house will use (or will go into your battery). If you're still convinced that you're using as much electricity from the grid as you were before it's probably because your solar PV system isn't working properly. 

 

Can you post some pictures of your solar app showing how much you've generated over a day, how much the house has used and what electricity has gone into the battery?

1992 4 bed detached house. Solar PV + battery, Zappi EV charger, Mitsubishi Ecodan ASHP and i-life2 fan assisted radiators.... No gas 😊
Rank 2
January 9, 2023

Thanks for all the info. Will attempt to answer all the questions posed above. Sorry, I probably didn’t give enough info up front, thinking this might be a simple thing someone had experienced themselves!

We have a 15 panel system with inverter and battery set for self consumption. I’ve attached screengrabs from the app showing today’s data.

OVO is consistently showing around 11kWh consumption a day.

We have economy 7 and charge the 6kW battery at night, hence you’ll see that on the graph.

The figures just don’t make any sense to me and when I called the solar installer, they agreed that the graphs are not making sense, but (obviously) were convinced everything was functioning as it should. They very confidently said that they’d seen this with two other customers this week and gave the advice about the smart meter incorrectly seeing the solar generation. This doesn’t make any sense to me. The solar app is not remotely user friendly either!

juliamc
Rank 20
Rank 20
January 9, 2023

Oops that has you personal info on the screen You should still be able to edit those pics out and repost 

Rank 2
January 9, 2023

Oops that has you personal info on the screen You should still be able to edit those pics out and repost 

Thanks. The problem with doing things late in the evening. Have cropped and reposted.

M.isterW
Rank 6
Rank 6
January 10, 2023

I think the charts are showing that your total daily electricity use is around 16 to 18kWh. Is that what you were using before the solar panels were installed?

 

You're generating somewhere between 4 and 9kWh per day and using all of it (exporting nothing). That means your daily use from the grid will be around 8 to 13kWh. Is that what your smart meter is showing?

1992 4 bed detached house. Solar PV + battery, Zappi EV charger, Mitsubishi Ecodan ASHP and i-life2 fan assisted radiators.... No gas 😊
Rank 2
January 10, 2023

I think the charts are showing that your total daily electricity use is around 16 to 18kWh. Is that what you were using before the solar panels were installed?

 

You're generating somewhere between 4 and 9kWh per day and using all of it (exporting nothing). That means your daily use from the grid will be around 8 to 13kWh. Is that what your smart meter is showing?

Thanks for your reply. This is the whole reason for my post. My usage before Solar was around 11kWh a day every single day. I’ve never used 16-18kWh as far back as the records go. So I’m still using the same as I did before, but these charts are showing a significant increase in usage.

BPLightlog
Super User
Super User
January 10, 2023

Hi @stefbrowne_132 looking at you top line graph above, when charging overnight the battery line (blue) is positive which normally would show when being used. If being charged, it is a negative line (below zero) like shown when your solar is charging. There’s something odd about the overnight charging unless you’re exporting to the grid at that time instead

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