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Rank 1
January 12, 2018
Solved

High usage costs shown on my new smart meter In Home Display (IHD) - Are my prices correct?

  • January 12, 2018
  • 48 replies
  • 39429 views

I had new smart meters fitted yesterday afternoon. Rather shocked to see my costs at over £5 for half a day by the time I went to bed!!! Most of it was Gas usage (>£3) and it wasn't even a cold day. According to my Nest thermostat, the boiler was only running approx 1.5 hours since the meter was fitted. How can 1.5 hrs heating equate to £3 usage ? Boiler (not combi) is rated 24 kW max and tariff shows 4p/kW (which is wrong - should be 2.68p). My basic maths suggests this should be 1.5 hrs * 24 kW * £ 0.04 = £ 1.44 + 27p standing charge. That assumes boiler runs at full tilt the whole time which is not correct as I hear it modulate down after a few minutes.

This doesn't seem right to me. Even if/when the tariff is corrected it seems too high.
How can I get the tariff set to the one I'm actually signed up to? How likely is it I've got a duff meter that is reading too high on gas?

Best answer by Tim_OVO

Updated on 09/10/25 by Ben_OVO

 

Sorry for the inaccurate unit rates you’re seeing on your In-Home Display (IHD). Sometimes it can take up to 6 weeks for your smart meter to complete the initialising process, which could mean that the information displayed your device might not be accurate to begin with.

 

Once it’s fully set-up the tariff information showing on the device should match the rates showing on your online account or OVO app (see the guide below).

 

 

If it’s been over 6 weeks since your smart meter was installed and things still don’t line up - reach out to our Support Team who can make sure the rates on your IHD are corrected. In the meantime it’s worth bearing in mind:

 

Usage costs on your IHD may not 100% match your daily charges

 

If the unit rates loaded on to your device aren’t accurate, the daily costs shown here won’t match what you’re actually charged. For this reason we’d always advise checking the actual usage charges on your bills, which can be downloaded via your online account or OVO app. You can also check the ‘Usage’ section of the online account / app, which gives you a more detailed breakdown of your usage than your IHD does.

 

 

No increase in costs due to a smart meter


Having a smart meter installed won't directly increase your costs. There are no hidden effects on usage, and your unit rates and standing charges won't change. 

 

Your meter will be accurate

 

The meter will clock accurately. Old meters can slow down, or even speed up meaning they're not measuring your energy usage correctly. We'd only expect to see this with very old meters. A brand new meter, smart or otherwise, will clock what you're using accurately.

 

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

Not in communication with your smart meter? Fill out this Online Form 

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

48 replies

Rank 2
November 25, 2022

Do you have a Baxi uSense controller? If you do, this video shows how to turn pre-heat off.

 

https://youtu.be/FiJsruKEslI

Saw that..however I don’t have that controller.. sigggh.. Thanks for the suggestion tho :) 

 

Emmanuelle_OVO
Retired Moderator
Retired Moderator
November 28, 2022

Hey @Amerififer,

 

I can see there has already been some really great suggestions here from other community members. 

 

Just wanted to add, you’ll be billed to the actual meter readings taken from the smart meter, not the figures shown on the IHD. 

 

It might be that the IHD is including standing charge. If you add up the 30 minute usage through the day from the Bright App and add standing charge does that make more sense? 

 

Hope this helps. 

Renewable Energy? Big Fan.
greyab
Newcomer
Newcomer
December 15, 2022

Im glad im not the only one seeing odd increases on the smartmeter.  I have managed to get my consumption down to an average of 9-16p/hr (yes I have turned nearly everything off), but for the last few days at least I have seen the cost jump to nearly 40p/hr and then after about 10-20 minutes drop down again. This is happening a few times each day when nothing else has been turned on.

Tim_OVO
OVO Staff
OVO Forum Legend
December 16, 2022

Could it be a cycling fridge/freezer, @greyab? This appliance isn’t on constantly, but instead turns on every so often to maintain the temperature. 

 

See @BPLightlog’s blog for other possibilities: 

 

 

Carbon neutral - we need a community to get there! My green tech: Aclara SGM 1411-B smart meter, Chameleon IHD6
greyab
Newcomer
Newcomer
December 16, 2022

@Tim_OVO thanks for that suggestion, will have to take a look at that.

Rank 2
December 16, 2022

I was out of the house from about 6 am until 6 pm today.. Heating was set at 12 C… Got in and it showed £1.50 used.. 

Looked an hour later, after bumping the heat up and it shows £5.54 used? Seems an awfully  large jump in an hour.. 

I’m really getting fed up and frustrated with smart meters that can’t connect as they should and then show wrong/odd info..

Should call them OVO as they please meters.. because they rarely at least for me .. work/show accurate info.. 

Thats my experience with them anyway.  This makes it almost impossible to try to even think about budgeting with all the crisis going on.. 

 

Rank 5
December 17, 2022

Combi or standard boiler? If it's a combi you might need to take into account the water pre-heat function on those things. Depending on the temperature where you are it's possible the boiler has been needing to pre-heat the hot water quite often due to the ambient temperature of the cold water in the system being very low. Also, remember about 27p of that initial £1.50 use is standing charge.

Re the big jump after an hour heating. That's not necessarily incorrect, especially if things like your flow temperature are up quite high or you turn the thermostat up from 12 to 21° maybe. That's a lot of heat the boiler needs to put out.

Are you using an OVO supplied in home display that can probably show instantaneous gas use? Have a look at it when you're using as little gas as possible, see what it says, then turn your heating up the same amount you did yesterday, see how much per hour it says you're using.

Rank 2
December 17, 2022

Combi or standard boiler? If it's a combi you might need to take into account the water pre-heat function on those things. Depending on the temperature where you are it's possible the boiler has been needing to pre-heat the hot water quite often due to the ambient temperature of the cold water in the system being very low. Also, remember about 27p of that initial £1.50 use is standing charge.

Re the big jump after an hour heating. That's not necessarily incorrect, especially if things like your flow temperature are up quite high or you turn the thermostat up from 12 to 21° maybe. That's a lot of heat the boiler needs to put out.

Are you using an OVO supplied in home display that can probably show instantaneous gas use? Have a look at it when you're using as little gas as possible, see what it says, then turn your heating up the same amount you did yesterday, see how much per hour it says you're using.

Combi boiler….

had turned the heating from 12 to 16 degrees.. Need to see if i can find info on my Boiler re preheat function.  Its a Baxi 800 series..   Will keep an eye on it thanks for the explanation.. 

Is there an average that a one bedroom , ground floor flat should be using in Gas and/or Electric??? Just curious :)

Rank 5
December 17, 2022

As a guide, our heating uses about £1.40ish per hour while running BUT it's a standard boiler without all the fancy features of a combi. I have read a lot this last couple of weeks about flow temperature control and if that's up too high it can use a lot more gas than you'd like. But, like with anything, don't just go changing stuff if not sure. My mother-in-law bled her radiators yesterday and woke up today with no heating or hot water. My mum woke up to a worktop flooded under the boiler (council think it's just condensation).

Worth monitoring it for a day or two, seeing if it's actually using silly amounts of gas while heating and if so have a word with your installer of you can, or a plumber if you can't.

Either way, these prices need to come down before a lot of people have a lot of problems 😢

BPLightlog
Super User
Super User
December 17, 2022

Sounds like a recurring theme .. although the meters are what all companies use

 

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