Energy Meters Guide

Understanding the meter type you have and exactly how to read it is just as important as having your gas and electric bills explained to you. 

Understanding your bill is crucial to becoming completely energy-competent. Once you know the basics, you are better prepared to spot problems with your energy bill and know when you’re being charged too much and it’s time to find a new energy supplier. 

We want to start by walking you through your meter type. We include some vital information you’re going to need if you want to know how to read gas and electric meters.

 

In 2025, keeping track of how much energy you use is easier than ever. With the rise of smart meters, both domestic customers and business owners are now able to give suppliers the most accurate readings possible, meaning you’ll only pay for what you use. With this guide, we’ll take you through how to get a meter reading from your smart meter, with step-by-step instructions ensuring you can get a clear and accurate reading.

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How To Read Your Energy Meter 

Submitting your energy reading three working days before your energy bill comes out is a good way to ensure that you are correctly billed for your energy usage. Otherwise, your supplier will estimate your usage and either charge you too much or too little; should the latter happen then it is likely that your supplier will charge you for the shortfall at a later date. You'll also need to know your meter number to ensure you're paying the correct bill. 

Some old-fashioned meters like dial meters can be tricky to read, and they require being read in a particular way. Thankfully, our simplified guide will show you how to read any kind of meter found in your home. 

Smart Meter Readings 

One of the benefits of having a smart meter is that it sends the readings to your supplier automatically so that they can accurately tell how much energy you’re using without you having to manually send them in.  

Because of this, you may wonder why it’s worth checking your smart meter at all. It is, however, useful to know how to take readings, as you may find yourself needing to for a variety of reasons. For example, if your smart reader is damaged or faulty, it may not be sending the data to your supplier properly. Being able to read the meter before it's fixed may stop you from being charged more by your supplier.

Smart Meter Display 

Before we start, it’s important to note the difference between your smart meter and your in-home display. The display is not something you can take meter readings from, as it simply shows you the amount of electricity and gas you’re using on a basic level (it may tell you that your electricity use is ‘high’, for example, but may not go into further detail).

Your smart meter is where you’ll find the exact figures you need to take a reading, and depending on the type of meter you have, there are different ways of doing it.

If you've just moved house and need some help getting your energy up and running, check out our extensive guide.

 

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Taking Meter Readings 

This section identifies the different types of meters, one of which you will find installed within your household or business.

Electricity meters will be inside a mounted box likely located in a utility room, laundry room, garage, basement, or attic.

Business Meters

Business meters are read in the same way as you would in your home. This guide is still applicable for businesses to take readings based on different types of meter. You may want to install a new meter if it's outdated. 

 

How to read a digital single rate meter

These meters can be identified by looking for a phrase like ‘single rate’ or ‘single phase’ on the front.

All you have to do is read and record the numbers from left to right; make sure you include all the preceding zeros as well.

 

How to read your digital two rate digital meters 

Economy 7 and Economy 10 meters require two readings, as a daytime reading and a nighttime reading are required for these types of tariffs (also known as differential tariffs).

You can identify these meters by looking for a phrase like ‘multi-rate’ or ‘multi-single phase’ on the front.

To distinguish between daytime reading and nighttime reading, look for the small number on the far left of the display that indicates which reading it is. Make sure you submit both readings to your supplier.

How to read your mechanical digital single rate meter

These meters have counters that are mechanically operated. Simply read the numbers from left to right, but do not include the numbers in red or any numbers after the decimal point.

 

How to read your mechanical digital two-rate meter

There are two long numbers featured on these, which also provide night and day readings; these are sometimes labelled as ‘low’ and ‘normal’.

Just as you would for the single rate meter, record the numbers from left to right but do not include the numbers in red or any numbers after the decimal point.

 

How to read your mechanical dial meter

These meters are older and use dials to indicate the number; the place value is indicated above the dial.

To read this type of electricity meter, simply read the numbers on each black dial (from left to right). You do not need to read the number shown on the red dial.

Here are important things to remember when reading this type of electricity meter:

 

  - If the pointer is between two numbers, then record the lowest number

  - However, if the number is between 0 and 9, always write down 9

  - If the pointer is pointing directly to a number, underline it

  - If a 9 comes right after an underlined number, then subtract 1 from the underlined number

 

How to read a smart electric meter

When noting your reading, there’s an important distinction between gas readings. Electricity readings end with a ‘kWh’, though the rule of ignoring the numbers after the decimal place still applies.  

Again, the most common type of meter interface is the keypad, and pressing 9 will show you your reading.

Your meter may also have two buttons, labelled ‘Reconnect’ and ‘Display Select. Press the ‘Display Select’ button until you see the number with ‘kWh’ after it. This is your electricity reading.  

If your meter has an ‘A’ and ‘B’ button, press ‘A’ until you get to TOTAL ACT IMPORT. The number below this is your electricity reading.

Your meter might have three buttons on the side of the display. If this is the case, just press the middle button, and the display will show your reading below the ‘IMP’ on the screen.

Another display form is an orange button on the left and blue buttons on the right. If so, just press the orange button to show your reading. The process remains the same for business electricity customers. 

How do I take a reading from an Economy 7 meter?

An Economy 7 meter, a two-rate reader, records your energy usage overnight and day separately, meaning you’ll have two different readings. You’ll need to record both of these, though it can be difficult to know which one is which, as they’re often labelled something like ‘R1’ and ‘R2’.

If you have an Economy 7 smart meter:

Press 6 on the keypad until you see 'IMP R01' followed by 8 digits - this is usually your night/off-peak reading.

Then keep on pressing 6 on the keypad until you see 'IMP R02' followed by 8 digits - this is usually your peak/normal reading.

If you don’t have a keypad, you’ll likely have some other kind of main button to press, such as ‘A’, which you can press to see the readings.

How do you read a smart meter with no buttons?

If your meter doesn’t have any buttons or any way of interacting with it, then it will likely cycle through the different readings.

The number starting with ‘R1’ is your electricity reading, which will also be marked by ‘kWh’. Simply record both readings as they cycle through and you’ll have all the information you need.

How do you read a smart meter with a and b buttons?

If your meter has ‘A’ and ‘B’ buttons, press the 'A' button until you see 'Credit On', then press it again to show 'Meter Index', and again to show your readings.

If your meter has a left arrow, a circle and a right arrow, just press the middle button to show your reading.

If your meter has 3 square red buttons, these may or may not be labelled ‘A’, ‘B’, and ‘C’. Press the ‘A’ or left button to see your reading.

If your meter has an orange and a blue arrow to the right of the screen, press the orange button to see your reading.

If your meter has two white buttons to the right of your display, press the right button to see your reading. This might be labelled ‘OK’ or have an arrow printed on it.

 

Reading Gas Meters 

Gas meters can be located inside or outside your premises. Usually, gas meters inside are in a kitchen area or hallway. 

 

How to read your digital metric meter

Record the five numbers from left to right (including the zeros), but do not include the numbers in red or any numbers after the decimal point.

 

Smart Gas Meters

When you’re checking your smart meter, there are a few things you need to look out for to see what type it is. For meter readings, your reading will be a number followed by ‘m3’, so make sure you note when you check. It’s also important to remember to ignore the numbers after the decimal place when taking a reading. So, if you see the number ‘00063.236’, your reading is 63.

For all types of smart meters, the first thing you’ll see is a display next to a way of interacting with the device. The most common of these is a keypad, with numbers 0-9, but there are a few different variations.

If your meter has a keypad, all you need to do is press ‘9’. From there, you'll see 'Volume' and a reading followed by 'm3'. The process remains the same for business gas customers.

How to read your digital gas imperial meter

This is very similar to a digital metric gas meter, except there are four numbers and the unit of measurement is provided in cubic feet (ft³).

Make sure to include the zeros, but disregard the red numbers and the dial on the right.

 

How to read your gas dial meter

To submit your reading, simply read the numbers indicated on the dials from left to right and ignore the red dials.

The same principles apply to reading dial gas meters as to dial electric meters, and they are as follows:

  - If the pointer is between two numbers, then record the lowest number

  - However, if the number is between 0 and 9, always write down 9

  - If the pointer is pointing directly to a number, underline it

  - If a 9 comes right after an underlined number, then subtract 1 from the underlined number

These meters will always measure gas usage in cubic feet (ft³).

 

Understanding Smart Meters 

Smart energy meters were introduced to the market a few years ago, but are taking a while to take effect. With several device types and generations, it can be difficult for consumers to work out how to upgrade to a smart meter. 

Types of Smart Meters: SMETS 1 & 2 explained

What is a SMETS 1 meter?

SMETS 1, or Smart Metering Equipment Technical Specifications, is the name for the first generation of smart meters which were installed in millions of homes across the UK as part of an official government rollout.

 

In the south of England, SMETS 1 meters use a SIM card to connect to the 3G mobile network and send your monthly gas and electricity readings to your supplier.  

In the north of England, SMETS 1 meters use radio waves to connect to the separate Northern Communications Network.  

Some customers have reported that after switching to a new energy supplier their SMETS 1 meter lost its smart functionality and became “dumb” reverting to being a standard energy meter.  

How do I tell the difference between SMETS 1 and 2 meters?

If you have a smart meter but don’t know which type you have, there’s an easy way to find out. Simply take a look at the serial number of your device. If the number begins with 19P, then it’s an SMETS 1, if it begins with 19M, it’s an SMETS 2.

Do SMETS 2 smart meters cost more to get installed?

No, it’s free to get a smart meter placed in your home no matter which type you have.  

How will my SMETS 1 meter be fixed?

The government’s solution to the “dumb” SMETS 1 problem was to hire the DCC (Data Communications Company) to create one single unified smart meter network and port all of the affected devices over to it.  

This DCC network restores the SMETS 1 meter smart functionality, once again allowing them to talk to suppliers and automatically submit meter readings, and ensures it won’t be lost if you switch suppliers in future.  Compare our best energy deals and switch in minutes.

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