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juliamc
Rank 20
Rank 20
October 6, 2024
Solved

Is there room for a smart meter?

  • October 6, 2024
  • 16 replies
  • 362 views

Is there room for a smart meter here ?

Would I have to get a local electrician to move that doorbell transformer somewhere else (assuming that’s what it is), or is there a smaller version available that a meter man could fit so they could get a smart meter in ? British Gas is the supplier.

Best answer by BPLightlog

Updated on 05/12/25 by Abby_OVO

 

That’s all very tight. One of the smallest smart meters is approx. twice the size of that ‘budgie’ meter (under the doorbell) so I think the doorbell will need to be moved for anything to fit.

 

 

As BP says, there appears to be enough room width-wise. Because smart meters usually have the comms hub mounted on top of them, they’re all about the same width - 130mm. The problem here will be the extra height of the comms hub, so I think that doorbell would have to go. My Aclara with a WNC hub is 170mm top to bottom. You’d have to measure from the bottom edge of the existing meter and see where 170mm takes you.

 

The following topic guide on smart meter installations may also be helpful:

 

16 replies

BPLightlog
Super User
Super User
October 6, 2024

Updated on 05/12/25 by Abby_OVO

 

That’s all very tight. One of the smallest smart meters is approx. twice the size of that ‘budgie’ meter (under the doorbell) so I think the doorbell will need to be moved for anything to fit.

 

 

As BP says, there appears to be enough room width-wise. Because smart meters usually have the comms hub mounted on top of them, they’re all about the same width - 130mm. The problem here will be the extra height of the comms hub, so I think that doorbell would have to go. My Aclara with a WNC hub is 170mm top to bottom. You’d have to measure from the bottom edge of the existing meter and see where 170mm takes you.

 

The following topic guide on smart meter installations may also be helpful:

 

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, Hybrid EV, ASHP and Home Assistant automation}
juliamc
Rank 20
juliamcAuthor
Rank 20
October 6, 2024

Thanks @BPLightlog maybe I’ll wait for the next occupier to rewire and start again. Shame as BG are offering £25 credit per smart meter installation - there’s plenty of room at the gas meter but that’s no good on its own, 😕.

Firedog
Super User
Super User
October 6, 2024

Hello Julia 👋

That meter looks to have come of age …

As BP says, there appears to be enough room width-wise. Because smart meters usually have the comms hub mounted on top of them, they’re all about the same width - 130mm. The problem here will be the extra height of the comms hub, so I think that doorbell would have to go. My Aclara with a WNC hub is 170mm top to bottom. You’d have to measure from the bottom edge of the existing meter and see where 170mm takes you.

It’s difficult for ordinary mortals to find any details of smart meters, even basic ones like their dimensions. It’s all very well for suppliers and installation engineers to know them, but as you illustrate, customers sometimes need to know too.

I thought you had a Secure meter?

 

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
juliamc
Rank 20
juliamcAuthor
Rank 20
October 6, 2024

@Firedog Thanks for that info. This is my late mother-in-law’s house, so I thought I’d try getting a smart meter in while the family are clearing it, and get the £50 from BG !! However, if I could reposition the doorbell thing myself (how difficult can that be ?!?🤓) maybe it’s still possible.

BPLightlog
Super User
Super User
October 6, 2024

 However, if I could reposition the doorbell thing myself (how difficult can that be ?!?🤓) maybe it’s still possible.

There should be a feed from one of the trips on the consumer unit. If you isolate it there, someone could take the cover off the bell and move it - it might need longer cables .. or just remove it for now

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, Hybrid EV, ASHP and Home Assistant automation}
juliamc
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juliamcAuthor
Rank 20
October 6, 2024

I’ll get my screwdriver out…!

Abby_OVO
Community Manager
Community Manager
October 7, 2024

Hey @juliamc 

 

Glad to see BP and Firedog have already stopped by and offered great advice as always!

 

If you do have the smart meter fitted in there, please do pop back with a photo. I’d love to see how it fits in the end!

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juliamc
Rank 20
juliamcAuthor
Rank 20
October 11, 2024

@BPLightlog unfortunately there’s no dedicated bell feed here, it’s all a bit out of date ! The meter has the date 2003 on it, does that mean it’s nearly defunct ?

BPLightlog
Super User
Super User
October 11, 2024

Yes, 20 years is a typical lifespan. 
Those wires connect to somewhere ..

Not encouraging you to get too far into things but if there’s nothing much operating, you could throw the main breaker while you take the cover off the bell

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, Hybrid EV, ASHP and Home Assistant automation}
BPLightlog
Super User
Super User
October 11, 2024

… or even better, switch each off one by one until you find the connection (when the bell doesn’t work)

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