Nearly four million smart meters in Britain were not working properly by the end of last year, official data has revealed.

Some 3.98million of the devices found in homes across the UK were not operating in smart mode as of December 2023. This was up 47 per cent on an official total of 2.7million previously announced by the Government in June 2023.

But the Department for Energy Security and Net Zero (Desnez) has now confirmed to MailOnline that there was a data reporting error in the June figure – and the total was in fact 4.31million, meaning there was actually a fall of 8 per cent to December.

This correction by the department means that while the official figure was initially perceived to have risen significantly between June and December, there has actually been a decrease in the number of meters not in smart mode.

The Desnez figures were revealed as customers continue to report how faulty meters have left them with huge bills.

The devices – which the Government launched in 2011 – record gas and electricity usage, display the costs in real time and remotely send readings to suppliers.

But customers often have to rely on estimated bills if they lose connection, which are meant to be corrected once the supplier has received further manual readings.

3.98million smart meters in Britain were not working properly by the end of 2023 (file image)

3.98million smart meters in Britain were not working properly by the end of 2023 (file image)

3.98million smart meters in Britain were not working properly by the end of 2023 (file image)

At the end of 2023, 61 per cent of meters operating were smart meters - inclusive of those not operating in smart mode - which was a 6 percentage point increase from the end of 2022

At the end of 2023, 61 per cent of meters operating were smart meters - inclusive of those not operating in smart mode - which was a 6 percentage point increase from the end of 2022

At the end of 2023, 61 per cent of meters operating were smart meters – inclusive of those not operating in smart mode – which was a 6 percentage point increase from the end of 2022

While suppliers are obliged to replace faulty meters, some customers have either paid too much and struggled to get it back, or too little and gone into debt.

Londoner’s smart meter charged her for a house 270 miles away

Jilly Bond was billed for another property

Jilly Bond was billed for another property

Jilly Bond was billed for another property

Six flat owners at a Victorian property in Ealing, West London, suffered a major misbilling when they had an SSE smart meter installed early last year for the lighting of the property’s common areas – stairs and exterior.

Monthly bills used to work out at about £20, but when the smart meter was installed, they began to rise and rise, reaching a staggering £600 a month.

They contacted SSE and were told the reason was – bizarrely – because readings that the supplier received were for a meter 270 miles away in Sunderland.

Jilly Bond, an actress and audio book narrator, owns a flat in the house with husband Julian Gartside, a speech and language therapist.

Although the incorrect billing problem was later resolved, the smart meter stopped transmitting readings.

Ms Bond and the other flat owners contacted the Energy Ombudsman, which looks into disputes between suppliers and customers. 

In late November last year, it ordered SSE to refund the overpayments.

After the Desnez data was revealed by BBC News, Smart Energy GB, a non-profit organisation which promotes smart meters, said there were now nearly 35million of the devices in the country.

It added that 88.6 per cent of them were operating in smart mode at the end of 2023, a rise of 1.3 percentage points from 87.3 per cent the previous year.

The group also pointed out that the sharp increase in the number of meters not operating in smart mode was due to a data reporting error, which has been rectified in the latest Government figures.

It added that the trend in the proportion of meters operating with full smart functionality ‘continued to improve between 2022 and 2023’. 

A Smart Energy GB spokesman told MailOnline and This is Money: ‘We know that most people have a very positive experience with their smart meter, but we also understand the frustration felt by some whose meter may be temporarily operating without all of its smart features.

‘If your smart meter is not sending automatic readings to your energy supplier, please be reassured that it will still be recording your energy use correctly. 

‘We would recommend that you send your supplier meter readings to make sure you receive accurate, rather than estimated, bills until all of the features of your smart meter have been restored.’

He added that there were now almost 35 million smart meters – representing 61 per cent of all meters – in Britain and the ‘vast majority are operating as intended, with an overall improvement in the proportion of smart meters operating in smart mode since 2022, up from 87.3 per cent at the end of 2022 to 88.6 per cent at the end of 2023’.

This graph from the Department for Energy Security and Net Zero shows how the number of domestic smart meters installed by large suppliers has increased since their launch in 2011

This graph from the Department for Energy Security and Net Zero shows how the number of domestic smart meters installed by large suppliers has increased since their launch in 2011

This graph from the Department for Energy Security and Net Zero shows how the number of domestic smart meters installed by large suppliers has increased since their launch in 2011

The spokesman also said that figures previously reported in 2023 ‘included a data reporting error which has been rectified in the latest figures released by government’, adding: ‘It’s important the positive trend continues, to ensure everyone can benefit from the full range of smart meter benefits.’

Sir Grayson Perry says EDF raised electricity bill from £300 to £39k 

Sir Grayson Perry was left ‘freaked out’ by his electricity bill from EDF and revealed the firm took £2,500 from his bank account.

The 63-year-old Turner Prize-winning artist and broadcaster suggested the lack of phone signal at his studio may have affected the smart meter readings that had created the bill.

Sir Grayson said last December that EDF had raised his monthly electric bill from £300 to £39,000 and tried to take the amount as a direct debit from his account.

EDF pointed to an ‘erroneous meter reading’ as a possible explanation for unusual changes in amounts charged, and said such increases were verified through a human check.

He also said: ‘If you experience a problem with your smart meter, contact your energy supplier. If you do not think your supplier has met its obligations, you can contact Citizens Advice and the Energy Ombudsman for further support.’ 

And a Desnez spokeswoman told MailOnline and This is Money: ‘Smart meters are helping consumers manage their energy use and save money, while driving the transition to a smarter and more flexible energy system.

‘The vast majority of smart meters are working correctly. However, we are concerned that reporting errors by a minority of suppliers have uncovered more meters not operating in smart mode than previously thought.’

She added that Lord Callanan, Minister for Energy Efficiency and Green Finance, wrote to Ofgem today, ‘urging action to ensure suppliers are held to account if they are not supporting customers with issues as they should be’.

Ofgem says suppliers are required by their licence to take all reasonable steps to ensure they are able to communicate with their customers’ smart meters.

The regulator added that if a meter loses smart functionality, the meter should continue to accurately measure usage as before, and customers will still be able to take manual readings from the meter in the traditional way.

The number of smart and advanced meter installations in 2023 decreased by 6% on 2022

The number of smart and advanced meter installations in 2023 decreased by 6% on 2022

The number of smart and advanced meter installations in 2023 decreased by 6% on 2022

The number of domestic smart meters operating in smart mode is now at a total of 29million

The number of domestic smart meters operating in smart mode is now at a total of 29million

The number of domestic smart meters operating in smart mode is now at a total of 29million

Energy costs could vary at different times of day in price cap regime 

By Sean Poulter 

Boiling a kettle in the evening energy peak could become more expensive under a new regime for dynamic pricing.

Watchdog Ofgem will consult on a new price cap system which allows different charges depending on the time of day.

Families could be charged more to use the kettle, washing machine and dishwasher during the evening peak to persuade them to switch to other times of the day. The system would also push those with electric cars to charge them at night.

On the flip side, households could be rewarded with lower tariffs for switching their usage to small hours.

Doing the laundry through the night could become standard practice, although this flies in the face of safety advice linked to appliance fires. 

The changes are part of the green transition in energy use, with a switch away from gas-fired power stations to renewables.

The system would include alerts to tell people they can turn on household appliances if there is an abundance of cheap wind and solar energy. 

Ofgem said this would reward consumers for shifting their energy consumption time, which would reduce costs for everyone.

Smart meters will be central – they allow energy firms to change how much householders are charged at the touch of a button. 

However, their installation programme is massively over budget and behind schedule. Ofgem said the existing price cap, along with a temporary ban on energy firms offering cheap deals to attract new customers, had helped to protect the public.

Tim Jarvis, of Ofgem, said: ‘The energy market is changing as we move to net zero and we recognise the systems we have may need to change too.’ 

However, Richard Neudegg, of Uswitch.com, said: ‘We’re yet to see a full return to competition in the market – and the price cap must bear some of the blame.’

A spokeswoman for Ofgem told MailOnline and This is Money: ‘The way we use energy will look very different in the future, and the smart meter roll out is an integral part of moving to a cleaner, more efficient energy system, and empowering consumers to understand their energy use, and access innovative smart tariffs that could save them money.

‘While the majority of smart meters are working correctly, we’ve asked suppliers to provide us with more detail on how they plan to tackle connectivity issues.

‘Suppliers are responsible for making sure their customers’ smart meters operate correctly, and we expect them to communicate with their customers clearly if there are any issues with their smart meter.

‘If customers have concerns about the way this is handled, they can complain to their supplier, and if the issue is not resolved to their satisfaction, they should raise it with the ombudsman.’

Ofgem is also concerned about the ‘slow progress of installations for smart prepayment meters, and the potential impact of that on vulnerable households’.

Last year six suppliers paid a total of £10.8million into its ‘energy industry voluntary redress fund’ after they failed to meet their 2022 smart meter installation targets.

Desnez is responsible for smart meter policy, while Ofgem’s role is to provide regulatory oversight of the smart meter rollout, such as through monitoring energy suppliers’ compliance with their licence obligations.

A spokeswoman for Energy UK, which represents suppliers, told MailOnline: ‘Suppliers have every reason to try and ensure all their customers can enjoy the full benefits of smart meters which give households greater control and understanding of their energy usage.

‘Technical problems can prevent some meters from operating in smart mode and while this can be for reasons outside their control, suppliers still have an obligation to replace them when this happens.

‘Customers should always contact their supplier if they are experiencing issues – there can be a range of potential fixes so these are best addressed on a case-by-case basis.

‘It is of course important that figures correctly represent the current situation and we continue to work with suppliers and other partners in the programme to further improve the customer experience for smart households.’

** Had trouble with your smart meter? Email: [email protected] with what happened, your name and a picture, so you can feature on MailOnline ** 

How to tell if your smart meter is faulty and what you can do to fix it

How do smart meters work?

Smart meters measure how much gas and electricity a household uses and share that information with you in close-to-real time.

They also send this information to your energy supplier via a wireless network similar to the internet but exclusively for smart meters.

If they lose connection, customers often rely on estimated bills, which are supposed to be corrected once the supplier has manual meter readings.

How do you know if your smart meter is faulty?

Some customers have either paid too much on their energy bills and struggled to get their money back – or too little and gone into debt – because their meters have not been in smart mode.

You can see if your supplier is getting your readings by checking your latest statement – or looking at your supplier’s app if they have one – and seeing if readings are marked as ‘smart’.

If they are not, you can check how often your smart meter is supposed to be sending readings to your provider – either monthly, hourly, or half-hourly. Making this more frequent could improve the accuracy of bills.

Another possible cause of the issue, which is not necessarily your smart meter’s fault, is if the supplier itself is having connectivity issues. In this case, you may need to submit readings manually to ensure your bills are accurate.

What can you do if your smart meter is faulty?

If you still think it might be your meter that is at fault, you can check its connection using this Citizens Advice tool.

Contact your energy provider if your smart meter is not connecting properly, making sure you submit manual readings while the issue is ongoing to make sure your bills are accurate.

If your smart meter monitor is at fault, then you can try moving it closer to your meters, checking its battery or that it is plugged in, or check your supplier’s website for further troubleshooting tips.

If a smart meter monitor is broken, or not working as it should within 12 months of installation, your supplier should replace it free of charge unless you damaged it yourself. After 12 months, you can be charged for a new smart meter, although some energy firms will waive this fee.

How is the smart meter rollout going?

The installation programme of smart meters, launched by the Government in 2011, is hugely over budget and behind schedule.

Ofgem has said it is concerned about the ‘slow progress of installations for smart prepayment meters, and the potential impact of that on vulnerable households’.

Late last year, six companies were fined a combined £10.8 million for missing the regulator’s 2022 targets.

This post first appeared on Dailymail.co.uk

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