Electric meter accuracy testing: costs and process

Suspecting an issue with your electric meter can be unsettling, especially when high energy bills arrive. An accurate electric meter is crucial for fair billing, ensuring you only pay for the energy you actually use. This guide will walk you through identifying potential meter problems, performing safe at-home checks, and understanding the official process and costs involved in meter accuracy testing.

If you're concerned about your electric meter's accuracy, Fuse Energy offers a clear process to help. We provide remote assessments and transparently outline any conditional costs for official testing. Click here to switch to Fuse Energy today.

Understanding electric meter accuracy

Electric meters are fundamental to your energy bills, measuring the electricity your home consumes in kilowatt-hours (kWh). Every kWh recorded directly contributes to the amount you pay.

Why meter accuracy matters

An inaccurate electric meter can lead to significant financial discrepancies. If your meter runs fast, you could be overpaying for electricity you haven't used. Conversely, a slow meter might lead to underbilling, which your supplier could later correct, resulting in a large, unexpected bill. Ensuring your meter is accurate protects you from these issues.

How electric meters work

Electric meters, whether traditional or smart, measure the flow of electricity into your home in kilowatt-hours (kWh). Traditional meters typically have a display with spinning dials or a digital readout that advances as you use more electricity. Smart meters, on the other hand, automatically send readings to your energy supplier, often providing more detailed usage data through an in-home display or an app. This automatic transmission means you generally do not need to read your smart meter yourself, though you might in specific situations like switching suppliers.

Signs of a faulty electric meter

While meter faults are rare, they can happen. If your energy bill is higher than expected, it is usually due to increased usage rather than a faulty meter. However, certain signs might indicate a problem with your meter.

Unusually high or low bills

A sudden, unexplained jump or drop in your energy bill, despite no change in your usage habits, could point to a faulty meter. It is important to first rule out other reasons for high bills, such as increased appliance use or estimated readings.

Meter not moving or moving too fast

If your meter appears stuck, is not recording usage, or conversely, seems to be clocking up units unusually quickly, it could be faulty.

Blank or flickering display

For digital meters, including smart meters, a blank screen, flickering display, or an error message like 'error' or 'call help' suggests a problem. If you have a prepayment meter and the screen is blank, contact your supplier immediately for investigation, as this could indicate a problem.

Strange noises or smells

Any unusual noises coming from your meter, such as buzzing or humming, or a burning smell, warrant immediate attention. These could indicate a serious electrical issue and should be reported to your energy supplier without delay.

Safe at-home checks for your meter

Before contacting your energy supplier, there are a few simple, safe checks you can perform at home to investigate your concerns.

The 'turn everything off' test

This is a common and effective test. Turn off all electrical appliances in your home, including those on standby, and switch off your main fuse box. Wait for about 15 minutes, then check your electric meter. If the meter reading is still increasing, it suggests a fault with the meter itself.

Monitoring your usage patterns

Keep a log of your meter readings over a few days, noting down the time and date. Compare this with your typical energy consumption. If you have a smart meter, your in-home display can help you monitor usage in near real-time. This can help identify if your consumption habits have changed, or if there is an unexplained spike in usage.

Visual inspection for damage

Carefully inspect your meter for any visible signs of damage, such as loose wires, cracks, or scorch marks. If you notice anything unusual or unsafe, do not touch the meter and contact your energy supplier immediately.

Official electric meter accuracy testing

If your at-home checks suggest a potential issue, the next step is to involve your energy supplier for an official investigation. Energy suppliers in Great Britain are regulated by Ofgem.

Contacting your energy supplier

Contact your energy supplier straight away to report your concerns. They will investigate the problem. They might ask you to take daily meter readings over 7 days or install a 'check meter' next to your existing one to compare readings.

The independent test process

If you remain unhappy with your supplier's investigation, you have the right to request an independent test of your meter. An independent examiner will carry out checks on your meter at your home, with a representative from your supplier present. Your meter will then be removed and taken to an approved laboratory for further testing.

Costs of a meter accuracy test

The cost of an official meter accuracy test is conditional. If the test finds your electric meter is faulty, the test is free of charge. However, if the meter is found to be accurate and working correctly, you will typically be charged for the engineer's visit and the test.

Fuse Energy clearly outlines these conditional costs upfront, ensuring transparency.

What happens after a meter test

Once the independent test is complete, the examiner will issue a 'determination' - a report detailing their findings.

If your meter is faulty

If the determination states your meter is inaccurate, your energy supplier will contact you to resolve the matter. This may involve compensating you for over-billing or agreeing a payment plan for under-billing. Your supplier should replace the faulty meter and work out how much you should have been charged while it was inaccurate.

If your meter is accurate

If the test confirms your meter is working correctly, you will be charged the fee for the test. Your supplier may also charge you for removing the meter and installing a replacement.

Understanding your rights and next steps

Consumers have rights regarding meter accuracy tests, as outlined by organisations like Citizens Advice and GOV.UK. If you are unhappy with the outcome or your supplier's response, you can complain to your supplier. If the issue remains unresolved, you can escalate it to the Energy Ombudsman.

Preventing future meter concerns

Proactive steps can help you stay on top of your energy consumption and reduce future meter-related worries.

Regular meter readings

Even with a smart meter, taking regular manual readings can help you track your usage and spot any anomalies early. For non-smart meters, submitting readings regularly ensures your bills are based on actual consumption rather than estimates.

Understanding your energy consumption

The average UK home uses around 2,500 kWh of electricity per year, according to Ofgem's medium typical domestic consumption value, effective from 1 July 2026. Understanding how your household's usage compares to this benchmark can help you identify if your consumption habits are contributing to high bills. Many energy suppliers, including Fuse, provide tools to help you understand your usage patterns.

Smart meters and their benefits

Smart meters automatically send readings to your supplier, eliminating estimated bills and providing real-time data on your energy use. This can empower you to make informed decisions about your energy consumption and potentially save money. If you do not have a smart meter, your energy supplier can arrange for one to be installed at no extra charge.

Managing your energy bills should be clear and easy to understand. Fuse Energy focuses on straightforward pricing, so you can see exactly what you are paying without unnecessary complexity. If you have a smart meter, you can view detailed usage data through the app or website, helping you understand how you can lower your bills. If you do not have a smart meter, Fuse Energy can upgrade your non-smart meter, completely for free. This can make it easier to track spending and make informed decisions about your energy use. Our 24/7 human support team is always on hand with fast response times whenever you need help. Click here to switch to Fuse Energy today. Find out about our mission by clicking here.