At a glance
Submitting regular meter readings is one of the simplest things you can do to ensure your energy bills are accurate. Without them, your supplier estimates your usage based on historical averages – and those estimates can be significantly wrong in either direction, leading to unexpected bills when a reconciliation is carried out. A three-minute meter reading submitted monthly eliminates this problem completely and permanently, and gives you a clear and reliable baseline for tracking and understanding your energy consumption over time.
Most UK homes have at least two meters – one for gas and one for electricity – and there are several different meter types in common use. Understanding how to read each type correctly, what the numbers mean and how to submit them to your supplier is straightforward once you know what to look for. If your property has a smart meter installed, readings are sent automatically and manual submission is no longer required.
Why meter readings matter
Energy suppliers are required to send bills based on actual usage, but when they cannot obtain a reading they use an estimate. These estimated reads are based on your historical usage data and average consumption profiles for your property type, but they can diverge significantly from reality if your circumstances have changed – a new appliance, a change in occupancy, a home improvement that reduces heating demand, or simply a colder or warmer than average period. The Ofgem supplier licence conditions require suppliers to use reasonable endeavours to obtain actual reads at least once every two years, but this is a minimum floor rather than a target.
The practical consequence of relying on estimated reads is that you build up a credit or debit balance with your supplier over time. When an actual read is eventually taken, the reconciliation can result in an unexpectedly large bill or, if you have been overpaying, a credit that you have to request back. Monthly readings prevent this entirely and take less than five minutes once you know what you are looking for.
How to read an electricity meter
The most common electricity meter in UK homes is the digital meter, which displays a running total of kilowatt hours consumed on an LCD screen. To read it, simply note down the five or six digit number shown on the display, ignoring any digits shown after a decimal point or displayed in red. This is your meter reading in kWh.
Some older properties still have dial-type electricity meters, which use a series of five clock-face dials arranged in a row. To read a dial meter, work from left to right and note the number that each dial pointer has most recently passed – not the number it is approaching. If the pointer sits directly between two numbers, record the lower number. If the pointer appears to be directly on a number, look at the dial to its right – if that dial has passed zero, use the number the pointer is sitting on; if not, go one lower.
Economy 7 meters have two readings. If your property is on an Economy 7 tariff – which charges a lower rate for electricity used overnight – your meter will show two separate readings labelled as Rate 1 (or Normal) and Rate 2 (or Low). Submit both readings when providing your meter reading to your supplier. Never submit only one of the two rates.
How to read a gas meter
Gas meters in UK homes are almost universally digital. The display shows your gas consumption in either cubic metres (m3) or cubic feet (ft3) – check the label on your meter to confirm which unit is displayed, as this affects how the figure is converted to kWh on your bill. Most meters installed since the 1990s measure in cubic metres.
To read a digital gas meter, note the numbers shown on the display up to and including the decimal point. The digits after the decimal point are not required for a meter reading submission – record only the whole number. Some digital gas meters cycle through several display screens – wait for the screen showing a plain number before recording your reading. If the meter display goes blank between cycles, pressing the button on the front will bring it back.
Prepayment meters
Prepayment meters – sometimes called pay-as-you-go meters – require you to top up credit before using energy rather than paying a bill in arrears. Reading a prepayment meter follows the same process as a standard digital meter – note the number on the display. However, prepayment meters typically show additional information including your current credit balance, emergency credit status and the amount consumed since your last top-up. Cycle through the display using the button to find the consumption reading, which is what you need if your supplier asks for it.
If your prepayment meter runs out of credit, most meters allow a small amount of emergency credit – typically around £5 – to prevent your supply from cutting out completely and leaving you without heat or power. This emergency credit must be repaid on your next top-up before additional credit is added to your balance. If you are consistently running low on credit, your supplier is required to discuss alternative payment options with you on request.
Smart meters
A smart meter sends your readings automatically to your supplier at regular intervals – typically every 30 minutes for half-hourly data or daily for a standard reading. This means there is no requirement to read or submit your meter manually. Your bills are based on actual consumption data rather than estimates, eliminating the risk of reconciliation surprises.
Smart meters also communicate with an in-home display showing your real-time energy usage and cost. Pairing smart meter data with broader energy saving measures gives the best overall reduction in bills. If you need to check your smart meter reading manually – for example when switching supplier – press the display button on the meter to cycle through the screens until the current reading is shown. First-generation SMETS1 smart meters may temporarily revert to dumb meter behaviour when switching supplier, but SMETS2 meters (the current standard installed in UK homes since 2018) maintain smart functionality across all suppliers.
Submitting your reading
Most energy suppliers accept meter readings via their app, website, automated phone line or by speaking to an agent. Submit readings on or as close as possible to your billing date for the most accurate bills. Setting a monthly reminder on your phone takes 30 seconds and prevents the gradual drift of estimated readings that causes reconciliation problems. The app or online portal is always the fastest route and gives you an immediate confirmation that the reading has been received and logged against your account.
Spotting errors on your bill
Even with regular readings, errors can appear on energy bills. The most common are estimated reads that slip through despite submitted readings, incorrect meter numbers that mean your reading is applied to a different account, and unit rate errors where the wrong tariff has been applied. Checking three things every time your bill arrives takes under two minutes and catches the vast majority of errors before they compound into a larger and more time-consuming problem.
Keep a record of every reading you submit. Take a photo of your meter alongside the reading on your phone app confirmation screen. If a billing dispute arises, this photographic evidence showing the meter serial number and reading on a specific date is the most effective way to resolve it quickly. Store photos in a dedicated album or folder labelled by year so they are easy to locate months or years later if a dispute arises.
For households looking to go beyond basic meter reading and actively reduce consumption, a whole-home energy monitor clipped to the electricity supply cable gives real-time consumption data at the appliance level. Combined with the automatic readings from a smart meter, it provides the most complete picture available of where your energy costs are going and where reductions are most achievable – giving you the data you need to make genuinely informed decisions about your energy use.
Share on socials:
