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GivEnergy inverter tripping due to over-voltage?

 
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Electricity, Tariffs, Monitoring, Electrics & Providers
Last Post by Tim441 4 weeks ago
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 Tim441
(@tim441)
Honorable Member Contributor
Joined: 4 years ago
Posts: 460
Topic starter 10/07/2026 7:58 pm  

@transparent many thanks for the follow up. I sent my spreadsheet and a brief update to DNO via website.  But no idea if its ended in a black hole!

I don't know if that would be useful if sent to you by email? Could you forward?

Definitely my overvoltage events and inverter disconnects havd massively reduced since the phase change. But as you point out... the underlying problem is not resolved


This post was modified 4 weeks ago by Tim441

Listed Grade 2 building with large modern extension.
LG Therma V 16kw ASHP
Underfloor heating + Rads
8.7kw pv solar
3 x 8.2kw GivEnergy batteries
1 x GivEnergy Gen1 hybrid 5.0kw inverter
Manual changeover EPS
MG4 EV


   
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Transparent
 Transparent
(@transparent)
Illustrious Member Moderator
Joined: 5 years ago
Posts: 3355
10/07/2026 9:50 pm  

Posted by: @l8again
↑

With the Powerwall 2 or 3 with a Gateway, grid voltage and frequency monitoring, and Grid disconnection is outwith the end user’s control.

And that's as it should be.

If the grid parameters could be adjusted after manufacture, then it shouldn't get G98 certification.

I remain concerned, however, that some manufacturers might retain a back-door through which they can upgrade the firmware and configuration remotely.
That's a downside of having inverters which can only be operated if the customer connects them to the manufacturer's site across the internet.

Personally I think it should be made illegal to have mandatory internet communications in order to use an inverter.
It would still be possible to use Bluetooth or a secure WiFi connection to communicate directly with an App on a Smart-Phone.

 

@tim441  - please don't send anything to me.

SSE must have direct communication with their customers for GDPR reasons.

Once the file notes have been looked at internally, they will decide the next step.

 

My role is to liaise with senior engineers in a DNO, to discuss the issues and risks which come to light here on the Forum. I'd like to see a generic appreciation of the problem, and a collaborative approach to deal with it.

The benefit of this Forum is that one member raises a problem, and then three others join in with "me too".
That allows a DNO to better evaluate the nature of the issue, and clarify whether it's a few faulty devices, or a generic problem which is going to grow if nothing's done.


Save energy... recycle electrons!


   
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 Tim441
(@tim441)
Honorable Member Contributor
Joined: 4 years ago
Posts: 460
Topic starter 11/07/2026 7:49 am  

possibly interesting to note the latest spreadsheet

Since the phase change, the situation has improved dramatically. 

Slightly odd to note 3 days 3,4,5 July with multiple overvoltage events. However afaik there may have been no inverter disconnects - we normally hear the relays. And solar prod did not appear impacted. So perhaps brief spikes for some reason.

The last 5 days have seen no events and voltage in a better range despite high solar etc. Of course its possible DNO have done something that I am unaware of.

I will continue monitoring for now 

Inverter phase_change_voltage.xlsx

Listed Grade 2 building with large modern extension.
LG Therma V 16kw ASHP
Underfloor heating + Rads
8.7kw pv solar
3 x 8.2kw GivEnergy batteries
1 x GivEnergy Gen1 hybrid 5.0kw inverter
Manual changeover EPS
MG4 EV


   
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