Forums

Forums
Sustainable Sidetra...
Electricity, Tariff...
Ghosts in the Smart...
 
Notifications
Clear all

Ghosts in the Smart Meter perhaps?

 
Electricity, Tariffs, Monitoring & Providers
Last Post by Toodles 9 months ago
7 Posts
3 Users
0 Reactions
500 Views
RSS
Toodles
 Toodles
(@toodles)
Famed Member Contributor
11435 kWhs
Veteran
Joined: 2 years ago
Posts: 1852
Topic starter 24/06/2024 2:21 pm  

Unusually for me but I have not been using the grid for power but relying on solar power whilst the buy / sell ratio has been less than favourable on Agile. When looking at my Octopus app ‘My Energy’ page, I notice that there are minute amounts of energy indicated as consumption whilst (as far as I know) we were using just the solar PV and / or battery supply. Now I am not concerned about the actual amount of energy shown on the chart as it only amounts to a squintillienth of a groat’s worth [or in technical terms, sod all] but nevertheless, I am curious as to whether this is normal ‘noise’ in the system or perhaps something like the phantom draw I heard about some time ago which affected some L&G smart meters with a Tesla Gateway attached. I am attaching images from which it can be seen that the ‘noise’ appears to be random though I have noticed that from day-to-day, there is a spike at 06:00 and wondered if some pulse intelligence is being employed at such times. Curiously yours, Toodles

IMG 0702
IMG 0701

 

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
Quote
 JamesPa
(@jamespa)
Famed Member Moderator
11370 kWhs
Veteran
Joined: 2 years ago
Posts: 2151
24/06/2024 8:41 pm  

My solar diverter achieves zero export plus/minus about 80W.  I imagine that any other technology, eg a battery or car charge controller, relying on measuring the import/export using a current transformer, also has a finite error band.  Are your blood just this?

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
ReplyQuote
Toodles
 Toodles
(@toodles)
Famed Member Contributor
11435 kWhs
Veteran
Joined: 2 years ago
Posts: 1852
Topic starter 25/06/2024 7:58 am  

@jamespa My ‘Blood”? Please elaborate. Regards, Toodles.

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
ReplyQuote



Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Noble Member Moderator
7327 kWhs
Joined: 3 years ago
Posts: 749
25/06/2024 8:43 am  

Posted by: @toodles
↑

@jamespa My ‘Blood”? Please elaborate. Regards, Toodles.

🤔 That's why I turn autocorrupt off. That said, it drove my son mad when I asked him to message someone from my phone whilst I was driving since he relies on that feature heavily.

Coming back to your original question, though, I have an idea but really need to pose it as a question to find out if I'm speculating wildly or accidentally making sense. I know that hybrid inverters use the mains power to make sure the AC they kick out is in phase with the grid. In order to detect the grid's phase, do the inverters have to import any power even in tiny quantities? If they do, that might explain the bulk of your graphs. If not, someone with a bit of techie sense will be able to explain why not and I can learn something.

 

105 m2 bungalow in South East England
Mitsubishi Ecodan 8.5 kW air source heat pump
18 x 360W solar panels
1 x 6 kW GroWatt battery and SPH5000 inverter
1 x Myenergi Zappi
1 x VW ID3
Raised beds for home-grown veg and chickens for eggs

"Semper in excretia; suus solum profundum variat"


   
ReplyQuote
Toodles
 Toodles
(@toodles)
Famed Member Contributor
11435 kWhs
Veteran
Joined: 2 years ago
Posts: 1852
Topic starter 25/06/2024 8:57 am  

@majordennisbloodnok Could well be the cause; I sometimes notice that the ‘grid’ supplies 0.1 kw for a few seconds even though before and after this brief interlude, the system might be exporting and not set to import anyway. A sort of ‘Hello Grid, are we in phase?’ handshake. I suspect that the Tesla app does not resolve very minute amounts so may show 0.1 kW by default at such times. Regards, Toodles.

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
ReplyQuote
 JamesPa
(@jamespa)
Famed Member Moderator
11370 kWhs
Veteran
Joined: 2 years ago
Posts: 2151
25/06/2024 9:13 am  

@toodles blood is an autocorruption of blip!

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
ReplyQuote
Toodles
 Toodles
(@toodles)
Famed Member Contributor
11435 kWhs
Veteran
Joined: 2 years ago
Posts: 1852
Topic starter 25/06/2024 11:00 am  

@jamespa Oh! OK, Blippy good show! Regards, Toodles.

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  



Share:

Join Us!

Heat Pump Dramas?

Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.

✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)

👉 Book a one-to-one consultation now.

Latest Posts

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →