How do smart meters work?

A smart meter replaces your current electricity meter to measure how much energy you're using. What makes it “smart” is that it sends us this information automatically, so you don’t have to.  We can also communicate back to the meter and send you messages if we need to.

Depending on what you agree to share with us, your smart meter will send us half hourly, daily or monthly usage data. This means you'll no longer have to give meter readings or receive estimated bills, so you'll only pay for the energy you use(1). We'll keep this information secure and won't share it with anyone without your permission.

Having a smart meter will help you better understand your energy use. With the most frequent half hourly usage records this will be clearer to see where you can really make changes.

To find out more about the benefits of smart meters and how they're about to transform the way we look at energy, see How smart meters can benefit you.

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How can smart meters benefit you?

Learn about the benefits of smart meters and see how they can help you to become more energy efficient and save money.

  • By 2050, the Government aims to reduce the UK's greenhouse gas emissions by at least 80% (Source: Department of Energy & Climate Change). It's a challenging target but there are lots of different energy policies in place to help us achieve it. One of these involves smart meters and by 2020 every property should have one of these installed.
  • Smart meters help to make more informed decisions around the energy you use. This can have a positive impact on your levels of consumption and on the amount of money you spend.
  • The technology also means we can better service your account, including providing you with more accurate bills.
Watch video: See how we’ll install a smart meter into your business

Installing your smart meter

Watch our short video so you know what to expect when the installer arrives(1).

View the transcript

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Smart meter data

A guide to your rights and choices.


For more information, see our FAQ guide.

How do I get a smart meter?

At the moment, we’re only able to offer smart meters in certain areas, with the right amount of signal and for certain meter types. We’ll let you know when you can have yours fitted.

In the meantime, if you have any questions you can email our dedicated smart metering business team at

When will smart meters be available in my area?

As the technology develops we’ll be able to support smart metering in more and more areas around the country, and by 2020 all homes and businesses in Great Britain will have one fitted.

At the moment, we’re only able to offer smart meters in certain areas, with the right amount of signal and for certain meter types. As this grows we’ll be contacting all our customers to arrange installations.

How can I use my smart meter to save on energy

We’re currently developing an online tool that will help you keep track of your energy habits and help you see where you can save. If you’ve chosen to send us half-hourly readings, you’ll be able to see when in the day your usage has been particularly high or low, so you’ll know what is costing you more energy.

For top tips on saving energy visit our energy efficiency pages.

Will I always get accurate bills?

Your smart meter calculates how much energy you’re using, what this costs over time and the cost every hour as you’re using it. It then automatically send us all this information. This means you’ll no longer receive estimated bills, so you’ll only pay for the energy you use. Only in very rare cases, the smart meter may not be able to send us an automated meter reading due to a connectivity loss or a commissioning error. If this happens, we’ll try to contact you for a manual meter reading (you can see how to read your new meter in this guide). If we don’t manage to obtain it from you, we’ll send you an estimated bill.

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Energy efficiency tips and advice

Making simple changes could save you energy and money.


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