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What size are my meter tails? Getting a 100 amp fuse, are the tails 25mm or 16mm for EV charger?

  • June 16, 2019
  • 4 replies
  • 5393 views

Hi all,

I had an OVO SmartMeter installed in 2017.
We've just bought an electric car (a PHEV - a second hand Mitsubishi Outlander).
To fit a charging point in our driveway I've engaged ChargedEV, who have forwarded the enquiry to UK Power networks to install a 100 amp fuse.
In advance of that I need to identify if our meter tails and consumer unit tails are 25mm (rather than 16mm).
As I understand it, OVO 'own' the meter tails.
I (or at least a qualified electrician) 'own' the consumer unit tails.
UK Power networks 'own' that fuse.

How do I work out what size the Ovo meter tails they are?
(And any advice on the same for the consumer unit connection welcome!)

Many thanks, Neil
 

Best answer by Amy_OVO

Updated on 20/01/26 by Ben_OVO

 

Great to hear about your new Electric Vehicle (EV)! In case you haven’t already seen it we’ve got a great community discussion on EV purchasing here.


Important question to ask now you’re looking to install an EV charging point. Happy to confirm that if you’ve had a smart meter installed by OVO the meter tails would be upgraded to 25mm as standard, even if you had 16mm prior to your smart meter being installed.

 

If you’ve got a traditional meter and are looking to get an EV charger installed, we’d advise taking this opportunity to get a smart meter installed to make sure your meter tails will fit the bill. There’s other great smart meter benefits too!

 

OVO customers who own EV’s can benefit from our Charge Anytime package. You can find out more info here:

 

 

OVO customer but not got a smart meter yet? - Book today!

Interested but not yet an OVO member? - Check out our plans!

4 replies

Amy_OVO
Retired Moderator
  • Retired Moderator
  • Solved
  • June 19, 2019

Updated on 20/01/26 by Ben_OVO

 

Great to hear about your new Electric Vehicle (EV)! In case you haven’t already seen it we’ve got a great community discussion on EV purchasing here.


Important question to ask now you’re looking to install an EV charging point. Happy to confirm that if you’ve had a smart meter installed by OVO the meter tails would be upgraded to 25mm as standard, even if you had 16mm prior to your smart meter being installed.

 

If you’ve got a traditional meter and are looking to get an EV charger installed, we’d advise taking this opportunity to get a smart meter installed to make sure your meter tails will fit the bill. There’s other great smart meter benefits too!

 

OVO customers who own EV’s can benefit from our Charge Anytime package. You can find out more info here:

 

 

OVO customer but not got a smart meter yet? - Book today!

Interested but not yet an OVO member? - Check out our plans!


  • Author
  • Rank 1
  • June 19, 2019
Wonderful - thank you Amy!

  • Newcomer
  • October 22, 2019

While doing some work to my consumer unit, the electrician has advised that: ‘the tails from the electricity meter to the henley blocks’ are around 6mm & should be 16mm - 25mm’. a) is this safe? b) can you update? 


Amy_OVO
Retired Moderator
  • Retired Moderator
  • October 25, 2019

I’ve moved your post here, @elizad, please see my best answer, I would recommend reaching out to our team for further info regarding updating the meter tails. 

You can send us a message on FacebookTwitter , our Help Centre has online chat, or give them a call. You can reach our Customer Care team 9-5 Monday-Friday on 0330 303 5063. 

 

Hope this helps! 


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