The import readings on my Secure Liberty S1 meter don't match the energy purchased figure on my Solar PV and Home Energy Inverter - Which figure is correct?

That looks like a quality installation @Mbu1982 

For the benefit of others who come to read this in future we should let the Moderators decide whether to move this discussion across to the topic about Photovoltaic Panels. That enables other members to find it.

The one item you haven’t provided a picture for is the Generation Meter. Do you know where that is?

I assume there must be one present because the red glow-stick(!) at bottom right of the Solis inverter is a radio-link to it

I do believe this discussion has a link to both topics. I am querying this based on a discrepancy between my smart meter import reading, monthly consumption and my solar POV system

Great. That’s the meter we’re looking for.

There should be lead from it which goes to a clamp on one of the two thick wires between your Smart meter and the Consumer unit with the trips in.

When you find the clamp you should be able to see an arrow (or two), either printed on or embossed into the plastic. We need to know if the arrow points towards or away from the Smart meter.

Morning, I have found the clamp but it has no arrows on it….

🤣 Is that what you where looking for. Please explain all to me now? As you can see, I’m very confused!

Our eagle-eyed @Transparent can spot an arrow hidden in a wire anywhere!

I’d echo your confusion @Mbu1982 - but have been following your discussion closely and I think it’s time to award this it’s very own thread. Take a look at the topic title and tags I’ve added to see if you think they could use a tweak. Am hoping this thread will become a great resource to others with a similar set-up and queries in future too! 

Hi @Jess_OVO No problem at all.  I do think there will be a lot of people wondering the same things I have been asking.  Thanks again

If people didn’t get confused about energy issues @Mbu1982  then this Forum wouldn’t have much need to exist!

I’m still checking the absolute basics about how your electricity import/export figures are being created. Even if you confirm that something is correct on your installation, it’s still good that we discuss it here. In future someone else will make the same checks but in their case it could be faulty.

So if you look at the grey-covered cable ‘tail’ which has the current-clamp on it, there are two things to confirm:

a: Does the side of the clamp marked ‘house’ point towards your consumer unit, and the side marked ‘grid’ point towards your SMETS1 meter?

b: Is this the ‘Live’ wire rather than the ‘Neutral’? (Ask again if you don’t know how to check this, or post a relevant photo).

Secondly, you mentioned that your Energy Supplier is Avro.

Aren’t they one of the smaller companies who have recently ceased to trade?

Aren’t Avro customers being acquired by Octopus?

I mention this because:

1: the change of supplier means that a meter reading will be provided by you, and the usage-history checked by the new supplier. If there have been mistakes, then this sets a point in time when things might change.

2: Octopus have a highly competent Smart Meter team. It was their diligence which discovered why a proportion of brand-new SMETS2 meters always failed when first installed. In fact I had a failed one which OVO had fitted!