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Spiking consumption at 3am?


i have got hourly consumption data but that shows unbelievable i am using more power at 3am, any ideas how this can be?  I dont have night storage heaters or anything like that and im asleep at that time…

 

Best answer by Nukecad

Thinking outside the box a little, maybe something like a temprature controlled greenhouse (or garage, or even an infrared patio) heater?
Anything with a thermostatic control.
Particularly at this time of year anything with a ‘frost protection’ setting.
It can be easy to forget something like that has been switched on/left on.

Which could also explain why it doesn’t happen on some nights, warmer nights?

Maybe get up in the middle of a cold night and have a check around the whole property?

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8 replies

Jeffus
Plan Zero Hero
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  • Plan Zero Hero
  • 2552 replies
  • January 29, 2024

Do you have gas or just electricity?

Does it happen every day?


  • Author
  • Carbon Cutter*
  • 2 replies
  • January 29, 2024

just electricity and most days


Jeffus
Plan Zero Hero
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  • Plan Zero Hero
  • 2552 replies
  • January 29, 2024

Do you have a hot water tank ?


BPLightlog
Plan Zero Hero
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  • Plan Zero Hero
  • 2729 replies
  • January 29, 2024

It looks like there’s an increase of 450w or so until 9am or thereabouts. This is not ‘high’ usage but suggests that something switches on for that duration. 
If you look at 3pm and 9pm there are similar levels for a short duration so it’s a bit of detective work to find out (if those are actual readings) what switches on. 
You can start by identifying what each appliance takes in power and then check various settings (auto or otherwise). 
If you have electric heating, it could be some pre-conditioning or water heating


Firedog
Plan Zero Hero
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  • Plan Zero Hero
  • 2022 replies
  • January 29, 2024

That looks to be something drawing 1.0kW coming on at around 03:00. Could it be a water heater? Many immersion heaters draw much more than that, but a small one might have a 1kW element. Another possibility is a forgotten electric radiator on a timer in an unused room, but I’m sure you’ve checked that. 1kW is equivalent to a one-bar electric fire, if you remember those:
  

 


Nukecad
Plan Zero Hero
  • Plan Zero Hero
  • 766 replies
  • Answer
  • January 29, 2024

Thinking outside the box a little, maybe something like a temprature controlled greenhouse (or garage, or even an infrared patio) heater?
Anything with a thermostatic control.
Particularly at this time of year anything with a ‘frost protection’ setting.
It can be easy to forget something like that has been switched on/left on.

Which could also explain why it doesn’t happen on some nights, warmer nights?

Maybe get up in the middle of a cold night and have a check around the whole property?


  • Author
  • Carbon Cutter*
  • 2 replies
  • January 29, 2024

its not the hot water as thats gas heated, however i am checking to see if i have anything on a timer…..thats a great suggestion i hadnt thought of.

 

thank you everyone for the suggestions i will do some more investigation work and let you know!


Emmanuelle_OVO
Community Manager
  • Community Manager
  • 2573 replies
  • January 30, 2024

Yes please pop back and let us know if you can @ncfishes! Brilliant advice from our Community Members, hopefully it helps you get to the bottom of it. 


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